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  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel"/>
  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:label id="lab_ecd_TradingArrByIndTable_terseLabel_en-US" xlink:label="lab_ecd_TradingArrByIndTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trading Arrangements, by Individual</link:label>
    <link:label id="lab_ecd_TradingArrByIndTable_label_en-US" xlink:label="lab_ecd_TradingArrByIndTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading Arrangements, by Individual [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TradingArrByIndTable" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TradingArrByIndTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_TradingArrByIndTable" xlink:to="lab_ecd_TradingArrByIndTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_TradingArrAxis_terseLabel_en-US" xlink:label="lab_ecd_TradingArrAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trading Arrangement:</link:label>
    <link:label id="lab_ecd_TradingArrAxis_label_en-US" xlink:label="lab_ecd_TradingArrAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading Arrangement [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TradingArrAxis" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TradingArrAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_TradingArrAxis" xlink:to="lab_ecd_TradingArrAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_MaximumMember_019ff179-4f1a-7032-8461-f6aa4ffd7d88_terseLabel_en-US" xlink:label="lab_srt_MaximumMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maximum</link:label>
    <link:label id="lab_srt_MaximumMember_label_en-US" xlink:label="lab_srt_MaximumMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maximum [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_MaximumMember" xlink:to="lab_srt_MaximumMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentOwnedNonAccrualStatusMember_019ff179-4f9d-7445-bdb4-d3cfff26716a_terseLabel_en-US" xlink:label="lab_cswc_InvestmentOwnedNonAccrualStatusMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investments on Non-accrual Status</link:label>
    <link:label id="lab_cswc_InvestmentOwnedNonAccrualStatusMember_label_en-US" xlink:label="lab_cswc_InvestmentOwnedNonAccrualStatusMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Owned, Non-accrual Status [Member]</link:label>
    <link:label id="lab_cswc_InvestmentOwnedNonAccrualStatusMember_documentation_en-US" xlink:label="lab_cswc_InvestmentOwnedNonAccrualStatusMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Owned, Non-accrual Status</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentOwnedNonAccrualStatusMember" xlink:href="cswc-20260930.xsd#cswc_InvestmentOwnedNonAccrualStatusMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentOwnedNonAccrualStatusMember" xlink:to="lab_cswc_InvestmentOwnedNonAccrualStatusMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_Security12bTitle_019ff179-4f1a-7e67-8e0c-edd6f5f34e9c_terseLabel_en-US" xlink:label="lab_dei_Security12bTitle" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_Security12bTitle"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_Security12bTitle" xlink:to="lab_dei_Security12bTitle" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet_01a16858-b661-7371-b1dc-0b2c339e6f88_verboseLabel_en-US" xlink:label="lab_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Fair Value</link:label>
    <link:label id="lab_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet_label_en-US" xlink:label="lab_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Assets (Liabilities), at Fair Value, Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet" xlink:to="lab_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_YUMIDSDMIDCOLLCMember_01a13a50-81fd-7b18-a811-3d5701becd9f_terseLabel_en-US" xlink:label="lab_cswc_YUMIDSDMIDCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">YUMI DSD MIDCO, LLC</link:label>
    <link:label id="lab_cswc_YUMIDSDMIDCOLLCMember_label_en-US" xlink:label="lab_cswc_YUMIDSDMIDCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">YUMI DSD MIDCO, LLC [Member]</link:label>
    <link:label id="lab_cswc_YUMIDSDMIDCOLLCMember_documentation_en-US" xlink:label="lab_cswc_YUMIDSDMIDCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">YUMI DSD MIDCO, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_YUMIDSDMIDCOLLCMember" xlink:href="cswc-20260930.xsd#cswc_YUMIDSDMIDCOLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_YUMIDSDMIDCOLLCMember" xlink:to="lab_cswc_YUMIDSDMIDCOLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AdjToCompAmt_terseLabel_en-US" xlink:label="lab_ecd_AdjToCompAmt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustment to Compensation, Amount</link:label>
    <link:label id="lab_ecd_AdjToCompAmt_label_en-US" xlink:label="lab_ecd_AdjToCompAmt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustment to Compensation Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AdjToCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AdjToCompAmt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AdjToCompAmt" xlink:to="lab_ecd_AdjToCompAmt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PledgedStatusAxis_01a16861-245a-78ad-a84f-93ed36b4ccac_terseLabel_en-US" xlink:label="lab_us-gaap_PledgedStatusAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pledged Status [Axis]</link:label>
    <link:label id="lab_us-gaap_PledgedStatusAxis_label_en-US" xlink:label="lab_us-gaap_PledgedStatusAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pledged Status [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PledgedStatusAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PledgedStatusAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PledgedStatusAxis" xlink:to="lab_us-gaap_PledgedStatusAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinancialInstrumentAxis_019ff179-4e75-7159-86f9-5a8d79aec817_terseLabel_en-US" xlink:label="lab_us-gaap_FinancialInstrumentAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial Instrument [Axis]</link:label>
    <link:label id="lab_us-gaap_FinancialInstrumentAxis_label_en-US" xlink:label="lab_us-gaap_FinancialInstrumentAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Instrument [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancialInstrumentAxis" xlink:to="lab_us-gaap_FinancialInstrumentAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour_019ff179-4f9d-7664-a0ae-808caadfdb4a_terseLabel_en-US" xlink:label="lab_cswc_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Thereafter</link:label>
    <link:label id="lab_cswc_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour_label_en-US" xlink:label="lab_cswc_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Operating Lease, Liability, to be Paid, After Year Four</link:label>
    <link:label id="lab_cswc_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour_documentation_en-US" xlink:label="lab_cswc_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Lessee, Operating Lease, Liability, to be Paid, After Year Four</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" xlink:href="cswc-20260930.xsd#cswc_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" xlink:to="lab_cswc_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable_019ff179-4e74-7c2e-bc0d-7f5d4a9950b0_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Increase in dividend and interest receivable</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Interest and Dividends Receivable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable" xlink:to="lab_us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock_019ff179-4f1a-7a70-9dc9-da86f9bf5a75_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Investment Portfolio by Level</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Assets Measured on Recurring Basis [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:to="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GuaranteeObligationsMaximumExposure_019ff179-4f9d-7e69-92fc-53e39d709968_terseLabel_en-US" xlink:label="lab_us-gaap_GuaranteeObligationsMaximumExposure" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expiring letters of credit</link:label>
    <link:label id="lab_us-gaap_GuaranteeObligationsMaximumExposure_label_en-US" xlink:label="lab_us-gaap_GuaranteeObligationsMaximumExposure" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Guarantor Obligations, Maximum Exposure, Undiscounted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeObligationsMaximumExposure" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GuaranteeObligationsMaximumExposure"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GuaranteeObligationsMaximumExposure" xlink:to="lab_us-gaap_GuaranteeObligationsMaximumExposure" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_U.S.TELEPACIFICCORPMember_019ff179-4f1a-7241-b79e-a5ad0c162c91_terseLabel_en-US" xlink:label="lab_cswc_U.S.TELEPACIFICCORPMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">U.S. TELEPACIFIC CORP.</link:label>
    <link:label id="lab_cswc_U.S.TELEPACIFICCORPMember_label_en-US" xlink:label="lab_cswc_U.S.TELEPACIFICCORPMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">U.S. TELEPACIFIC CORP [Member]</link:label>
    <link:label id="lab_cswc_U.S.TELEPACIFICCORPMember_documentation_en-US" xlink:label="lab_cswc_U.S.TELEPACIFICCORPMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">U.S. TELEPACIFIC CORP</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_U.S.TELEPACIFICCORPMember" xlink:href="cswc-20260930.xsd#cswc_U.S.TELEPACIFICCORPMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_U.S.TELEPACIFICCORPMember" xlink:to="lab_cswc_U.S.TELEPACIFICCORPMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments_019ff179-4f1a-71fe-8dfd-1f919b825925_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Portfolio investments sold</link:label>
    <link:label id="lab_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments_label_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Sale, Maturity and Collection of Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:to="lab_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_LOGIXHOLDINGCOMPANYLLCMember_019ff179-4f9d-7aa5-a3ba-c06525dd04d8_terseLabel_en-US" xlink:label="lab_cswc_LOGIXHOLDINGCOMPANYLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">LOGIX HOLDING COMPANY, LLC</link:label>
    <link:label id="lab_cswc_LOGIXHOLDINGCOMPANYLLCMember_label_en-US" xlink:label="lab_cswc_LOGIXHOLDINGCOMPANYLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">LOGIX HOLDING COMPANY, LLC [Member]</link:label>
    <link:label id="lab_cswc_LOGIXHOLDINGCOMPANYLLCMember_documentation_en-US" xlink:label="lab_cswc_LOGIXHOLDINGCOMPANYLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">LOGIX HOLDING COMPANY, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_LOGIXHOLDINGCOMPANYLLCMember" xlink:href="cswc-20260930.xsd#cswc_LOGIXHOLDINGCOMPANYLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_LOGIXHOLDINGCOMPANYLLCMember" xlink:to="lab_cswc_LOGIXHOLDINGCOMPANYLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeInstrumentRiskAxis_01a10bf5-5e1f-76e5-be49-928245500b57_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentRiskAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative Instrument [Axis]</link:label>
    <link:label id="lab_us-gaap_DerivativeInstrumentRiskAxis_label_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentRiskAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Instrument [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis" xlink:to="lab_us-gaap_DerivativeInstrumentRiskAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_019ff179-4f1a-7dce-b2cc-b0ff75fd4807_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Affiliate investments</link:label>
    <link:label id="lab_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_label_en-US" xlink:label="lab_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Affiliated Issuer, Noncontrolled [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember" xlink:to="lab_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_019ff179-4f9d-7100-906f-1a3e0147ffbc_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Issuance of common stock under restricted stock plan, net of forfeitures (in shares)</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:to="lab_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesMember_019ff179-4f1a-728e-9b41-d795e0260a02_terseLabel_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SBA Debentures</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesMember_label_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures [Member]</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesMember_documentation_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SmallBusinessAdministrationDebenturesMember" xlink:href="cswc-20260930.xsd#cswc_SmallBusinessAdministrationDebenturesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SmallBusinessAdministrationDebenturesMember" xlink:to="lab_cswc_SmallBusinessAdministrationDebenturesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_HEATTRAKLLCMember_019ff179-4f1a-791f-8a29-4e98add56d74_terseLabel_en-US" xlink:label="lab_cswc_HEATTRAKLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">HEAT TRAK, LLC</link:label>
    <link:label id="lab_cswc_HEATTRAKLLCMember_label_en-US" xlink:label="lab_cswc_HEATTRAKLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">HEAT TRAK, LLC [Member]</link:label>
    <link:label id="lab_cswc_HEATTRAKLLCMember_documentation_en-US" xlink:label="lab_cswc_HEATTRAKLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">HEAT TRAK, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_HEATTRAKLLCMember" xlink:href="cswc-20260930.xsd#cswc_HEATTRAKLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_HEATTRAKLLCMember" xlink:to="lab_cswc_HEATTRAKLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleConversionPrice1_019ff179-4f1a-7c51-9b15-84a54061c014_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Conversion price (in usd per share)</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleConversionPrice1_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Convertible, Conversion Price</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:to="lab_us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ExpirationPeriodDomain_019ff179-4e75-7ce5-a591-9019c7b9379b_terseLabel_en-US" xlink:label="lab_cswc_ExpirationPeriodDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expiration Period [Domain]</link:label>
    <link:label id="lab_cswc_ExpirationPeriodDomain_label_en-US" xlink:label="lab_cswc_ExpirationPeriodDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expiration Period [Domain]</link:label>
    <link:label id="lab_cswc_ExpirationPeriodDomain_documentation_en-US" xlink:label="lab_cswc_ExpirationPeriodDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Expiration Period [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ExpirationPeriodDomain" xlink:href="cswc-20260930.xsd#cswc_ExpirationPeriodDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ExpirationPeriodDomain" xlink:to="lab_cswc_ExpirationPeriodDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ConsolidatedEntitiesAxis_019ff179-4f1a-7c31-a37b-833443e921b4_terseLabel_en-US" xlink:label="lab_srt_ConsolidatedEntitiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consolidated Entities [Axis]</link:label>
    <link:label id="lab_srt_ConsolidatedEntitiesAxis_label_en-US" xlink:label="lab_srt_ConsolidatedEntitiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consolidated Entities [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ConsolidatedEntitiesAxis" xlink:to="lab_srt_ConsolidatedEntitiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_TreasuryStockAcquiredAverageCostPerShare_019ff179-4f1a-7736-b9ff-292dd74de2bc_terseLabel_en-US" xlink:label="lab_us-gaap_TreasuryStockAcquiredAverageCostPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average price per share (in usd per share)</link:label>
    <link:label id="lab_us-gaap_TreasuryStockAcquiredAverageCostPerShare_label_en-US" xlink:label="lab_us-gaap_TreasuryStockAcquiredAverageCostPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Shares Acquired, Average Cost Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockAcquiredAverageCostPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare" xlink:to="lab_us-gaap_TreasuryStockAcquiredAverageCostPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCommonStockSharesOutstanding_019ff179-4e75-7fa8-b865-094fd31f090e_terseLabel_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCommonStockSharesOutstanding" xlink:to="lab_dei_EntityCommonStockSharesOutstanding" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_IndustrialServicesSectorMember_019ff179-4f1a-79f7-8075-8353a7c21775_terseLabel_en-US" xlink:label="lab_cswc_IndustrialServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Industrial Services</link:label>
    <link:label id="lab_cswc_IndustrialServicesSectorMember_label_en-US" xlink:label="lab_cswc_IndustrialServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Industrial Services Sector [Member]</link:label>
    <link:label id="lab_cswc_IndustrialServicesSectorMember_documentation_en-US" xlink:label="lab_cswc_IndustrialServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Industrial Services Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_IndustrialServicesSectorMember" xlink:href="cswc-20260930.xsd#cswc_IndustrialServicesSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_IndustrialServicesSectorMember" xlink:to="lab_cswc_IndustrialServicesSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_USCOURTSCRIPTHOLDINGSINCMember_019ff179-4f1b-7347-acbd-2ffa82a51a3d_terseLabel_en-US" xlink:label="lab_cswc_USCOURTSCRIPTHOLDINGSINCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">US COURTSCRIPT HOLDINGS, INC.</link:label>
    <link:label id="lab_cswc_USCOURTSCRIPTHOLDINGSINCMember_label_en-US" xlink:label="lab_cswc_USCOURTSCRIPTHOLDINGSINCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">US COURTSCRIPT HOLDINGS, INC. [Member]</link:label>
    <link:label id="lab_cswc_USCOURTSCRIPTHOLDINGSINCMember_documentation_en-US" xlink:label="lab_cswc_USCOURTSCRIPTHOLDINGSINCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">US COURTSCRIPT HOLDINGS, INC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_USCOURTSCRIPTHOLDINGSINCMember" xlink:href="cswc-20260930.xsd#cswc_USCOURTSCRIPTHOLDINGSINCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_USCOURTSCRIPTHOLDINGSINCMember" xlink:to="lab_cswc_USCOURTSCRIPTHOLDINGSINCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_IndustrialProductsSectorMember_019ff179-4f9d-762b-a674-acc522663657_terseLabel_en-US" xlink:label="lab_cswc_IndustrialProductsSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Industrial Products</link:label>
    <link:label id="lab_cswc_IndustrialProductsSectorMember_label_en-US" xlink:label="lab_cswc_IndustrialProductsSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Industrial Products Sector [Member]</link:label>
    <link:label id="lab_cswc_IndustrialProductsSectorMember_documentation_en-US" xlink:label="lab_cswc_IndustrialProductsSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Industrial Products Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_IndustrialProductsSectorMember" xlink:href="cswc-20260930.xsd#cswc_IndustrialProductsSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_IndustrialProductsSectorMember" xlink:to="lab_cswc_IndustrialProductsSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FeeIncome_019ff179-4f1a-74a1-88ba-debdc6bea11c_terseLabel_en-US" xlink:label="lab_us-gaap_FeeIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fee income</link:label>
    <link:label id="lab_us-gaap_FeeIncome_label_en-US" xlink:label="lab_us-gaap_FeeIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fee Income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FeeIncome" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FeeIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FeeIncome" xlink:to="lab_us-gaap_FeeIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_TruFragranceBeautyLLCMember_019ff179-4e75-75fb-be64-4e3afb4b4ec0_terseLabel_en-US" xlink:label="lab_cswc_TruFragranceBeautyLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">TRU FRAGRANCE &amp; BEAUTY LLC</link:label>
    <link:label id="lab_cswc_TruFragranceBeautyLLCMember_label_en-US" xlink:label="lab_cswc_TruFragranceBeautyLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tru Fragrance &amp; Beauty LLC [Member]</link:label>
    <link:label id="lab_cswc_TruFragranceBeautyLLCMember_documentation_en-US" xlink:label="lab_cswc_TruFragranceBeautyLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tru Fragrance &amp; Beauty LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_TruFragranceBeautyLLCMember" xlink:href="cswc-20260930.xsd#cswc_TruFragranceBeautyLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_TruFragranceBeautyLLCMember" xlink:to="lab_cswc_TruFragranceBeautyLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ConsolidatedEntitiesDomain_019ff179-4e75-7c6b-96b7-65098273cbb5_terseLabel_en-US" xlink:label="lab_srt_ConsolidatedEntitiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consolidated Entities [Domain]</link:label>
    <link:label id="lab_srt_ConsolidatedEntitiesDomain_label_en-US" xlink:label="lab_srt_ConsolidatedEntitiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consolidated Entities [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ConsolidatedEntitiesDomain" xlink:to="lab_srt_ConsolidatedEntitiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SpecialPurposeVehicleFinancingCreditFacilityMember_019ff179-4f1a-71bf-87c8-c01aea368ab9_terseLabel_en-US" xlink:label="lab_cswc_SpecialPurposeVehicleFinancingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SPV Credit Facility</link:label>
    <link:label id="lab_cswc_SpecialPurposeVehicleFinancingCreditFacilityMember_label_en-US" xlink:label="lab_cswc_SpecialPurposeVehicleFinancingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Special Purpose Vehicle Financing Credit Facility [Member]</link:label>
    <link:label id="lab_cswc_SpecialPurposeVehicleFinancingCreditFacilityMember_documentation_en-US" xlink:label="lab_cswc_SpecialPurposeVehicleFinancingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Special Purpose Vehicle Financing Credit Facility</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SpecialPurposeVehicleFinancingCreditFacilityMember" xlink:href="cswc-20260930.xsd#cswc_SpecialPurposeVehicleFinancingCreditFacilityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SpecialPurposeVehicleFinancingCreditFacilityMember" xlink:to="lab_cswc_SpecialPurposeVehicleFinancingCreditFacilityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_019ff179-4f1a-7f46-81a5-a3942c8ec904_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">RELATED PARTY TRANSACTIONS</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Related Party Transactions Disclosure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:to="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ConsumerProductsSectorMember_019ff179-4f1a-75e0-8768-9d1f2ef710c6_terseLabel_en-US" xlink:label="lab_cswc_ConsumerProductsSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consumer Products</link:label>
    <link:label id="lab_cswc_ConsumerProductsSectorMember_label_en-US" xlink:label="lab_cswc_ConsumerProductsSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consumer Products Sector [Member]</link:label>
    <link:label id="lab_cswc_ConsumerProductsSectorMember_documentation_en-US" xlink:label="lab_cswc_ConsumerProductsSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Consumer Products Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ConsumerProductsSectorMember" xlink:href="cswc-20260930.xsd#cswc_ConsumerProductsSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ConsumerProductsSectorMember" xlink:to="lab_cswc_ConsumerProductsSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyScheduleOfUnusedFinancialCommitmentsTableTextBlock_019ff179-4f9d-7997-9e58-f3f48a42b11d_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyScheduleOfUnusedFinancialCommitmentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Unused Commitments to Extend Credit</link:label>
    <link:label id="lab_cswc_InvestmentCompanyScheduleOfUnusedFinancialCommitmentsTableTextBlock_label_en-US" xlink:label="lab_cswc_InvestmentCompanyScheduleOfUnusedFinancialCommitmentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Schedule Of Unused Financial Commitments [Table Text Block]</link:label>
    <link:label id="lab_cswc_InvestmentCompanyScheduleOfUnusedFinancialCommitmentsTableTextBlock_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyScheduleOfUnusedFinancialCommitmentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Schedule Of Unused Financial Commitments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyScheduleOfUnusedFinancialCommitmentsTableTextBlock" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyScheduleOfUnusedFinancialCommitmentsTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyScheduleOfUnusedFinancialCommitmentsTableTextBlock" xlink:to="lab_cswc_InvestmentCompanyScheduleOfUnusedFinancialCommitmentsTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyNonconsolidatedSubsidiaryAxis_019ff179-4f9d-72c5-bab4-777785e5f65f_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyNonconsolidatedSubsidiaryAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment Company, Nonconsolidated Subsidiary [Axis]</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyNonconsolidatedSubsidiaryAxis_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyNonconsolidatedSubsidiaryAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Nonconsolidated Subsidiary [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyNonconsolidatedSubsidiaryAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyNonconsolidatedSubsidiaryAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyNonconsolidatedSubsidiaryAxis" xlink:to="lab_us-gaap_InvestmentCompanyNonconsolidatedSubsidiaryAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockParOrStatedValuePerShare_019ff179-4f1a-7f53-acee-3129b747b239_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockParOrStatedValuePerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common stock, par value (in usd per share)</link:label>
    <link:label id="lab_us-gaap_CommonStockParOrStatedValuePerShare_label_en-US" xlink:label="lab_us-gaap_CommonStockParOrStatedValuePerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Par or Stated Value Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockParOrStatedValuePerShare" xlink:to="lab_us-gaap_CommonStockParOrStatedValuePerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ACACIABUYERCOVLLCMember_019ff179-4f1a-7f63-bd73-a1f930bbfdfb_terseLabel_en-US" xlink:label="lab_cswc_ACACIABUYERCOVLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ACACIA BUYERCO V LLC</link:label>
    <link:label id="lab_cswc_ACACIABUYERCOVLLCMember_label_en-US" xlink:label="lab_cswc_ACACIABUYERCOVLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ACACIA BUYERCO V LLC [Member]</link:label>
    <link:label id="lab_cswc_ACACIABUYERCOVLLCMember_documentation_en-US" xlink:label="lab_cswc_ACACIABUYERCOVLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ACACIA BUYERCO V LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ACACIABUYERCOVLLCMember" xlink:href="cswc-20260930.xsd#cswc_ACACIABUYERCOVLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ACACIABUYERCOVLLCMember" xlink:to="lab_cswc_ACACIABUYERCOVLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_WinterServicesOperationsLLCMember_019ff179-4f9d-7db0-8ef8-a9c874cf29f0_terseLabel_en-US" xlink:label="lab_cswc_WinterServicesOperationsLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">WINTER SERVICES OPERATIONS, LLC</link:label>
    <link:label id="lab_cswc_WinterServicesOperationsLLCMember_label_en-US" xlink:label="lab_cswc_WinterServicesOperationsLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Winter Services Operations, LLC [Member]</link:label>
    <link:label id="lab_cswc_WinterServicesOperationsLLCMember_documentation_en-US" xlink:label="lab_cswc_WinterServicesOperationsLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Winter Services Operations, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_WinterServicesOperationsLLCMember" xlink:href="cswc-20260930.xsd#cswc_WinterServicesOperationsLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_WinterServicesOperationsLLCMember" xlink:to="lab_cswc_WinterServicesOperationsLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019ff179-4e75-758c-9fbf-d54793a44f12_periodStartLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance (in shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019ff179-4e75-77a0-9727-fc5fa85f1cf4_periodEndLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance (in shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CompensationAndRetirementDisclosureAbstract_label_en-US" xlink:label="lab_us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retirement Benefits [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:to="lab_us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_WarrantsPolicyTextBlock_019ff179-4f1a-732a-bb59-fccbc78225c2_terseLabel_en-US" xlink:label="lab_cswc_WarrantsPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Warrants</link:label>
    <link:label id="lab_cswc_WarrantsPolicyTextBlock_label_en-US" xlink:label="lab_cswc_WarrantsPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrants [Policy Text Block]</link:label>
    <link:label id="lab_cswc_WarrantsPolicyTextBlock_documentation_en-US" xlink:label="lab_cswc_WarrantsPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Warrants</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_WarrantsPolicyTextBlock" xlink:href="cswc-20260930.xsd#cswc_WarrantsPolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_WarrantsPolicyTextBlock" xlink:to="lab_cswc_WarrantsPolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_019ff179-4e74-7575-979d-4bc612b733f4_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Accretion of discounts on investments</link:label>
    <link:label id="lab_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_label_en-US" xlink:label="lab_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accretion (Amortization) of Discounts and Premiums, Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments" xlink:to="lab_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_OutstandingAggtErrCompAmt_terseLabel_en-US" xlink:label="lab_ecd_OutstandingAggtErrCompAmt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Outstanding Aggregate Erroneous Compensation Amount</link:label>
    <link:label id="lab_ecd_OutstandingAggtErrCompAmt_label_en-US" xlink:label="lab_ecd_OutstandingAggtErrCompAmt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Outstanding Aggregate Erroneous Compensation Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_OutstandingAggtErrCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_OutstandingAggtErrCompAmt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_OutstandingAggtErrCompAmt" xlink:to="lab_ecd_OutstandingAggtErrCompAmt" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_LIFTBRANDSINCMember_019ff179-4e75-715e-aee4-623fe686763f_terseLabel_en-US" xlink:label="lab_cswc_LIFTBRANDSINCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">LIFT BRANDS, INC.</link:label>
    <link:label id="lab_cswc_LIFTBRANDSINCMember_label_en-US" xlink:label="lab_cswc_LIFTBRANDSINCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">LIFT BRANDS, INC [Member]</link:label>
    <link:label id="lab_cswc_LIFTBRANDSINCMember_documentation_en-US" xlink:label="lab_cswc_LIFTBRANDSINCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">LIFT BRANDS, INC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_LIFTBRANDSINCMember" xlink:href="cswc-20260930.xsd#cswc_LIFTBRANDSINCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_LIFTBRANDSINCMember" xlink:to="lab_cswc_LIFTBRANDSINCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_O2027M8TaxYearDividendsMember_019ff179-4f9d-7ac7-a91b-60ae65a3f8ba_terseLabel_en-US" xlink:label="lab_cswc_O2027M8TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">O 2027 M8 Tax Year Dividends</link:label>
    <link:label id="lab_cswc_O2027M8TaxYearDividendsMember_label_en-US" xlink:label="lab_cswc_O2027M8TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">O 2027 M8 Tax Year Dividends [Member]</link:label>
    <link:label id="lab_cswc_O2027M8TaxYearDividendsMember_documentation_en-US" xlink:label="lab_cswc_O2027M8TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">O 2027 M8 Tax Year Dividends</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_O2027M8TaxYearDividendsMember" xlink:href="cswc-20260930.xsd#cswc_O2027M8TaxYearDividendsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_O2027M8TaxYearDividendsMember" xlink:to="lab_cswc_O2027M8TaxYearDividendsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NumberOfReportableSegments_019ff179-4f9d-724a-9f1f-7fad0e0cff13_terseLabel_en-US" xlink:label="lab_us-gaap_NumberOfReportableSegments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of reportable segments</link:label>
    <link:label id="lab_us-gaap_NumberOfReportableSegments_label_en-US" xlink:label="lab_us-gaap_NumberOfReportableSegments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of Reportable Segments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NumberOfReportableSegments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NumberOfReportableSegments" xlink:to="lab_us-gaap_NumberOfReportableSegments" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_BRANDNERDESIGNLLCEquitySecuritiesMember_019ff179-4f1a-734a-8f53-1311629a97bb_terseLabel_en-US" xlink:label="lab_cswc_BRANDNERDESIGNLLCEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">BRANDNER DESIGN, LLC</link:label>
    <link:label id="lab_cswc_BRANDNERDESIGNLLCEquitySecuritiesMember_label_en-US" xlink:label="lab_cswc_BRANDNERDESIGNLLCEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">BRANDNER DESIGN, LLC, Equity Securities [Member]</link:label>
    <link:label id="lab_cswc_BRANDNERDESIGNLLCEquitySecuritiesMember_documentation_en-US" xlink:label="lab_cswc_BRANDNERDESIGNLLCEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">BRANDNER DESIGN, LLC, Equity Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_BRANDNERDESIGNLLCEquitySecuritiesMember" xlink:href="cswc-20260930.xsd#cswc_BRANDNERDESIGNLLCEquitySecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_BRANDNERDESIGNLLCEquitySecuritiesMember" xlink:to="lab_cswc_BRANDNERDESIGNLLCEquitySecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ConcentrationRiskTable_019ff179-4f1a-7b14-841a-2fbf0750d3be_terseLabel_en-US" xlink:label="lab_us-gaap_ConcentrationRiskTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Concentration Risk [Table]</link:label>
    <link:label id="lab_us-gaap_ConcentrationRiskTable_label_en-US" xlink:label="lab_us-gaap_ConcentrationRiskTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Concentration Risk [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConcentrationRiskTable" xlink:to="lab_us-gaap_ConcentrationRiskTable" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressCityOrTown_019ff179-4f1a-7711-b70e-b9d1416cdbc5_terseLabel_en-US" xlink:label="lab_dei_EntityAddressCityOrTown" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressCityOrTown"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCityOrTown" xlink:to="lab_dei_EntityAddressCityOrTown" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ConsumerServicesSectorMember_019ff179-4f1a-7b2b-bbe2-b657dd0f9856_terseLabel_en-US" xlink:label="lab_cswc_ConsumerServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consumer Services</link:label>
    <link:label id="lab_cswc_ConsumerServicesSectorMember_label_en-US" xlink:label="lab_cswc_ConsumerServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consumer Services Sector [Member]</link:label>
    <link:label id="lab_cswc_ConsumerServicesSectorMember_documentation_en-US" xlink:label="lab_cswc_ConsumerServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Consumer Services Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ConsumerServicesSectorMember" xlink:href="cswc-20260930.xsd#cswc_ConsumerServicesSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ConsumerServicesSectorMember" xlink:to="lab_cswc_ConsumerServicesSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019ff179-4f1a-7e6f-9c11-4da95321471b_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Granted (in shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ff179-4f9d-7633-860f-ed459d07b4d7_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentIncomePaidInKindInterestPercent_019ff179-4f9d-76a4-a91f-ee3905859621_terseLabel_en-US" xlink:label="lab_cswc_InvestmentIncomePaidInKindInterestPercent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-cash PIK interest income percent</link:label>
    <link:label id="lab_cswc_InvestmentIncomePaidInKindInterestPercent_label_en-US" xlink:label="lab_cswc_InvestmentIncomePaidInKindInterestPercent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Income, Paid-In-Kind Interest, Percent</link:label>
    <link:label id="lab_cswc_InvestmentIncomePaidInKindInterestPercent_documentation_en-US" xlink:label="lab_cswc_InvestmentIncomePaidInKindInterestPercent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Income, Paid-In-Kind Interest, Percent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentIncomePaidInKindInterestPercent" xlink:href="cswc-20260930.xsd#cswc_InvestmentIncomePaidInKindInterestPercent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentIncomePaidInKindInterestPercent" xlink:to="lab_cswc_InvestmentIncomePaidInKindInterestPercent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StatementOfFinancialPositionAbstract_label_en-US" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Financial Position [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfFinancialPositionAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract" xlink:to="lab_us-gaap_StatementOfFinancialPositionAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_BONDBRANDLOYALTYULCEquityInvestmentsMember_019ff179-4e75-765e-aeb0-2e9e2bd64a86_terseLabel_en-US" xlink:label="lab_cswc_BONDBRANDLOYALTYULCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">BOND BRAND LOYALTY ULC</link:label>
    <link:label id="lab_cswc_BONDBRANDLOYALTYULCEquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_BONDBRANDLOYALTYULCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">BOND BRAND LOYALTY ULC, Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_BONDBRANDLOYALTYULCEquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_BONDBRANDLOYALTYULCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">BOND BRAND LOYALTY ULC, Equity Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_BONDBRANDLOYALTYULCEquityInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_BONDBRANDLOYALTYULCEquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_BONDBRANDLOYALTYULCEquityInvestmentsMember" xlink:to="lab_cswc_BONDBRANDLOYALTYULCEquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2033Member_019ff179-4f1a-720a-bb86-9091c332de09_terseLabel_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2033Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debentures due March 2033</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2033Member_label_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2033Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures, Due March 2033 [Member]</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2033Member_documentation_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2033Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures, Due March 2033</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SmallBusinessAdministrationDebenturesDueMarch2033Member" xlink:href="cswc-20260930.xsd#cswc_SmallBusinessAdministrationDebenturesDueMarch2033Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SmallBusinessAdministrationDebenturesDueMarch2033Member" xlink:to="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2033Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_PeerGroupTotalShareholderRtnAmt_terseLabel_en-US" xlink:label="lab_ecd_PeerGroupTotalShareholderRtnAmt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Peer Group Total Shareholder Return Amount</link:label>
    <link:label id="lab_ecd_PeerGroupTotalShareholderRtnAmt_label_en-US" xlink:label="lab_ecd_PeerGroupTotalShareholderRtnAmt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Peer Group Total Shareholder Return Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeerGroupTotalShareholderRtnAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PeerGroupTotalShareholderRtnAmt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_PeerGroupTotalShareholderRtnAmt" xlink:to="lab_ecd_PeerGroupTotalShareholderRtnAmt" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_CLUTCHINC.Member_019ff179-4f1a-7304-81ef-97b0fdde0b58_terseLabel_en-US" xlink:label="lab_cswc_CLUTCHINC.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CLUTCH, INC.</link:label>
    <link:label id="lab_cswc_CLUTCHINC.Member_label_en-US" xlink:label="lab_cswc_CLUTCHINC.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CLUTCH, INC. [Member]</link:label>
    <link:label id="lab_cswc_CLUTCHINC.Member_documentation_en-US" xlink:label="lab_cswc_CLUTCHINC.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">CLUTCH, INC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CLUTCHINC.Member" xlink:href="cswc-20260930.xsd#cswc_CLUTCHINC.Member"/>
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    <link:label id="lab_cswc_ExpirationTrancheAxis_019ff179-4e74-7dc1-a010-65a235f4b394_terseLabel_en-US" xlink:label="lab_cswc_ExpirationTrancheAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expiration Tranche [Axis]</link:label>
    <link:label id="lab_cswc_ExpirationTrancheAxis_label_en-US" xlink:label="lab_cswc_ExpirationTrancheAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expiration Tranche [Axis]</link:label>
    <link:label id="lab_cswc_ExpirationTrancheAxis_documentation_en-US" xlink:label="lab_cswc_ExpirationTrancheAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Expiration Tranche</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ExpirationTrancheAxis" xlink:href="cswc-20260930.xsd#cswc_ExpirationTrancheAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ExpirationTrancheAxis" xlink:to="lab_cswc_ExpirationTrancheAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyTaxBasisTaxableIncomeLossBeforeDeductionForDistribution_019ff179-4e75-753a-9b7f-e0f8d0fe5ef8_totalLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyTaxBasisTaxableIncomeLossBeforeDeductionForDistribution" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Estimated distributable income before deductions for distributions</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyTaxBasisTaxableIncomeLossBeforeDeductionForDistribution_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyTaxBasisTaxableIncomeLossBeforeDeductionForDistribution" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Tax Basis, Taxable Income (Loss), before Deduction for Distribution</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyTaxBasisTaxableIncomeLossBeforeDeductionForDistribution" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyTaxBasisTaxableIncomeLossBeforeDeductionForDistribution"/>
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    <link:label id="lab_us-gaap_FairValueInputsLevel2Member_019ff179-4e75-7416-b5b2-0e68a1ad7f6f_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel2Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Significant Other Observable Inputs (Level&#160;2)</link:label>
    <link:label id="lab_us-gaap_FairValueInputsLevel2Member_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel2Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Inputs, Level 2 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel2Member" xlink:to="lab_us-gaap_FairValueInputsLevel2Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_TotalShareholderRtnVsPeerGroupTextBlock_terseLabel_en-US" xlink:label="lab_ecd_TotalShareholderRtnVsPeerGroupTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total Shareholder Return Vs Peer Group</link:label>
    <link:label id="lab_ecd_TotalShareholderRtnVsPeerGroupTextBlock_label_en-US" xlink:label="lab_ecd_TotalShareholderRtnVsPeerGroupTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total Shareholder Return Vs Peer Group [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TotalShareholderRtnVsPeerGroupTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TotalShareholderRtnVsPeerGroupTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_TotalShareholderRtnVsPeerGroupTextBlock" xlink:to="lab_ecd_TotalShareholderRtnVsPeerGroupTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare_019ff179-4f9d-7f46-97ef-7461ad157126_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net investment income per share &#8211; basic (in usd per share)</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Investment Income (Loss), Per Share, Basic</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare" xlink:to="lab_us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_NonRule10b51ArrTrmntdFlag_terseLabel_en-US" xlink:label="lab_ecd_NonRule10b51ArrTrmntdFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-Rule 10b5-1 Arrangement Terminated</link:label>
    <link:label id="lab_ecd_NonRule10b51ArrTrmntdFlag_label_en-US" xlink:label="lab_ecd_NonRule10b51ArrTrmntdFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-Rule 10b5-1 Arrangement Terminated [Flag]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_NonRule10b51ArrTrmntdFlag" xlink:to="lab_ecd_NonRule10b51ArrTrmntdFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentInterestRate_019ff179-4f1a-7e11-8afe-f7d4e424d9f3_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentInterestRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment interest rate</link:label>
    <link:label id="lab_us-gaap_InvestmentInterestRate_label_en-US" xlink:label="lab_us-gaap_InvestmentInterestRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Interest Rate</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentInterestRate" xlink:to="lab_us-gaap_InvestmentInterestRate" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentInterestRateFloor_019ff179-4f1b-7a9f-8c76-6e60b84ee224_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentInterestRateFloor" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Floor</link:label>
    <link:label id="lab_us-gaap_InvestmentInterestRateFloor_label_en-US" xlink:label="lab_us-gaap_InvestmentInterestRateFloor" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Interest Rate, Floor</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentInterestRateFloor" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentInterestRateFloor"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentInterestRateFloor" xlink:to="lab_us-gaap_InvestmentInterestRateFloor" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DividendsDomain_019ff179-4f1a-72d2-b95c-818d97b8fea9_terseLabel_en-US" xlink:label="lab_us-gaap_DividendsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends [Domain]</link:label>
    <link:label id="lab_us-gaap_DividendsDomain_label_en-US" xlink:label="lab_us-gaap_DividendsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DividendsDomain" xlink:to="lab_us-gaap_DividendsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ConcentrationRiskByTypeAxis_019ff179-4f1a-7a54-805b-d2c45796ceaf_terseLabel_en-US" xlink:label="lab_us-gaap_ConcentrationRiskByTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Concentration Risk Type [Axis]</link:label>
    <link:label id="lab_us-gaap_ConcentrationRiskByTypeAxis_label_en-US" xlink:label="lab_us-gaap_ConcentrationRiskByTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Concentration Risk Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis" xlink:to="lab_us-gaap_ConcentrationRiskByTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentTable_019ff179-4f1a-737b-b01f-271a90290196_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Long-Term Debt Instruments [Table]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentTable_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Long-Term Debt Instruments [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentTable" xlink:to="lab_us-gaap_DebtInstrumentTable" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_CDCDENTALMANAGEMENTCOLLCMember_019ff179-4e75-7468-b511-ce43357bec45_terseLabel_en-US" xlink:label="lab_cswc_CDCDENTALMANAGEMENTCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CDC DENTAL MANAGEMENT CO., LLC</link:label>
    <link:label id="lab_cswc_CDCDENTALMANAGEMENTCOLLCMember_label_en-US" xlink:label="lab_cswc_CDCDENTALMANAGEMENTCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CDC DENTAL MANAGEMENT CO., LLC [Member]</link:label>
    <link:label id="lab_cswc_CDCDENTALMANAGEMENTCOLLCMember_documentation_en-US" xlink:label="lab_cswc_CDCDENTALMANAGEMENTCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">CDC DENTAL MANAGEMENT CO., LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CDCDENTALMANAGEMENTCOLLCMember" xlink:href="cswc-20260930.xsd#cswc_CDCDENTALMANAGEMENTCOLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_CDCDENTALMANAGEMENTCOLLCMember" xlink:to="lab_cswc_CDCDENTALMANAGEMENTCOLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ClassOfTreasuryStockTable_019ff179-4e75-771b-8ef6-a1836979c74d_terseLabel_en-US" xlink:label="lab_us-gaap_ClassOfTreasuryStockTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Treasury Stock [Table]</link:label>
    <link:label id="lab_us-gaap_ClassOfTreasuryStockTable_label_en-US" xlink:label="lab_us-gaap_ClassOfTreasuryStockTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class of Treasury Stock [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfTreasuryStockTable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfTreasuryStockTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ClassOfTreasuryStockTable" xlink:to="lab_us-gaap_ClassOfTreasuryStockTable" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ProceedsFromDispositionOfInvestmentEquitySecuritiesOperatingActivity_019ff179-4e74-75e0-9199-7d38e0e1ea43_verboseLabel_en-US" xlink:label="lab_cswc_ProceedsFromDispositionOfInvestmentEquitySecuritiesOperatingActivity" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sales and return of capital of equity investments in portfolio companies</link:label>
    <link:label id="lab_cswc_ProceedsFromDispositionOfInvestmentEquitySecuritiesOperatingActivity_label_en-US" xlink:label="lab_cswc_ProceedsFromDispositionOfInvestmentEquitySecuritiesOperatingActivity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds From Disposition Of Investment, Equity Securities, Operating Activity</link:label>
    <link:label id="lab_cswc_ProceedsFromDispositionOfInvestmentEquitySecuritiesOperatingActivity_documentation_en-US" xlink:label="lab_cswc_ProceedsFromDispositionOfInvestmentEquitySecuritiesOperatingActivity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Proceeds From Disposition Of Investment, Equity Securities, Operating Activity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ProceedsFromDispositionOfInvestmentEquitySecuritiesOperatingActivity" xlink:href="cswc-20260930.xsd#cswc_ProceedsFromDispositionOfInvestmentEquitySecuritiesOperatingActivity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ProceedsFromDispositionOfInvestmentEquitySecuritiesOperatingActivity" xlink:to="lab_cswc_ProceedsFromDispositionOfInvestmentEquitySecuritiesOperatingActivity" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UseOfEstimates_019ff179-4e74-70d3-97fb-a7793d6c969c_terseLabel_en-US" xlink:label="lab_us-gaap_UseOfEstimates" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Use of Estimates</link:label>
    <link:label id="lab_us-gaap_UseOfEstimates_label_en-US" xlink:label="lab_us-gaap_UseOfEstimates" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Use of Estimates, Policy [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UseOfEstimates" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UseOfEstimates"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UseOfEstimates" xlink:to="lab_us-gaap_UseOfEstimates" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019ff179-4f9d-73b7-af2e-aa72b0f67a84_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Related Party [Axis]</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Related and Nonrelated Parties [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_AerospaceAndDefenseSectorMember_019ff179-4f9d-765d-a522-07657719eda8_terseLabel_en-US" xlink:label="lab_cswc_AerospaceAndDefenseSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Aerospace &amp; Defense</link:label>
    <link:label id="lab_cswc_AerospaceAndDefenseSectorMember_label_en-US" xlink:label="lab_cswc_AerospaceAndDefenseSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aerospace And Defense Sector [Member]</link:label>
    <link:label id="lab_cswc_AerospaceAndDefenseSectorMember_documentation_en-US" xlink:label="lab_cswc_AerospaceAndDefenseSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Aerospace And Defense Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_AerospaceAndDefenseSectorMember" xlink:href="cswc-20260930.xsd#cswc_AerospaceAndDefenseSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_AerospaceAndDefenseSectorMember" xlink:to="lab_cswc_AerospaceAndDefenseSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_019ff179-4f1a-7d92-82bc-7d1b3d61cde5_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Future Minimum Payments</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentPeriodEndDate_019ff179-4f9d-752e-a41c-792ae9b69632_terseLabel_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Period End Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentPeriodEndDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate" xlink:to="lab_dei_DocumentPeriodEndDate" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_SubsidiariesMember_019ff179-4f1a-7acc-917c-e73c8f4f606a_terseLabel_en-US" xlink:label="lab_srt_SubsidiariesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Taxable Subsidiary</link:label>
    <link:label id="lab_srt_SubsidiariesMember_label_en-US" xlink:label="lab_srt_SubsidiariesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsidiaries [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SubsidiariesMember" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SubsidiariesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_SubsidiariesMember" xlink:to="lab_srt_SubsidiariesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentFaceAmount_019ff179-4e75-7f57-a079-cdb0bb4a31b9_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Aggregate principal amount</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentFaceAmount_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Face Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentFaceAmount" xlink:to="lab_us-gaap_DebtInstrumentFaceAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_019ff179-4f1a-72d5-8d2c-a7d79b99290f_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2029</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Operating Lease, Liability, to be Paid, Year Two</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentsAllOtherInvestmentsAbstract_label_en-US" xlink:label="lab_us-gaap_InvestmentsAllOtherInvestmentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments, All Other Investments [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsAllOtherInvestmentsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsAllOtherInvestmentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentsAllOtherInvestmentsAbstract" xlink:to="lab_us-gaap_InvestmentsAllOtherInvestmentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentTerm_019ff179-4f1a-707e-904d-f83406794a62_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentTerm" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maturity (in years)</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentTerm_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentTerm" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Term</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTerm" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTerm"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentTerm" xlink:to="lab_us-gaap_DebtInstrumentTerm" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetIncomeLossAttributableToParentDiluted_019ff179-4f1a-74a7-9570-0284bb04535f_totalLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLossAttributableToParentDiluted" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Numerator for diluted earnings per common share</link:label>
    <link:label id="lab_us-gaap_NetIncomeLossAttributableToParentDiluted_label_en-US" xlink:label="lab_us-gaap_NetIncomeLossAttributableToParentDiluted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Income (Loss) Attributable to Parent, Diluted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToParentDiluted" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAttributableToParentDiluted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLossAttributableToParentDiluted" xlink:to="lab_us-gaap_NetIncomeLossAttributableToParentDiluted" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueInputsLevel12And3Member_019ff179-4f9d-77c8-b5dc-15b50e796807_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel12And3Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_us-gaap_FairValueInputsLevel12And3Member_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel12And3Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel12And3Member" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel12And3Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel12And3Member" xlink:to="lab_us-gaap_FairValueInputsLevel12And3Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_019ff179-4f1a-7f5e-bd55-e646d3be1dd7_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net operating loss carryforwards</link:label>
    <link:label id="lab_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Assets, Operating Loss Carryforwards</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:to="lab_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_PRECISIONSPRAYCOATINGSLLCMember_019ff179-4e75-7009-999b-0e6df90ff824_terseLabel_en-US" xlink:label="lab_cswc_PRECISIONSPRAYCOATINGSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">PRECISION SPRAY &amp; COATINGS, LLC</link:label>
    <link:label id="lab_cswc_PRECISIONSPRAYCOATINGSLLCMember_label_en-US" xlink:label="lab_cswc_PRECISIONSPRAYCOATINGSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">PRECISION SPRAY &amp; COATINGS, LLC [Member]</link:label>
    <link:label id="lab_cswc_PRECISIONSPRAYCOATINGSLLCMember_documentation_en-US" xlink:label="lab_cswc_PRECISIONSPRAYCOATINGSLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">PRECISION SPRAY &amp; COATINGS, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_PRECISIONSPRAYCOATINGSLLCMember" xlink:href="cswc-20260930.xsd#cswc_PRECISIONSPRAYCOATINGSLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_PRECISIONSPRAYCOATINGSLLCMember" xlink:to="lab_cswc_PRECISIONSPRAYCOATINGSLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_NumberOfLenders_019ff179-4e74-7121-9a38-44706fc36b16_terseLabel_en-US" xlink:label="lab_cswc_NumberOfLenders" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of lenders</link:label>
    <link:label id="lab_cswc_NumberOfLenders_label_en-US" xlink:label="lab_cswc_NumberOfLenders" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Lenders</link:label>
    <link:label id="lab_cswc_NumberOfLenders_documentation_en-US" xlink:label="lab_cswc_NumberOfLenders" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Lenders</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_NumberOfLenders" xlink:href="cswc-20260930.xsd#cswc_NumberOfLenders"/>
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    <link:label id="lab_cswc_SharesRepurchasedRestrictedStockAwardsVestedMember_019ff179-4f1a-7cd9-8ed3-551e14322bc0_terseLabel_en-US" xlink:label="lab_cswc_SharesRepurchasedRestrictedStockAwardsVestedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Shares repurchased for restricted stock awards vested</link:label>
    <link:label id="lab_cswc_SharesRepurchasedRestrictedStockAwardsVestedMember_label_en-US" xlink:label="lab_cswc_SharesRepurchasedRestrictedStockAwardsVestedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Shares Repurchased, Restricted Stock Awards Vested [Member]</link:label>
    <link:label id="lab_cswc_SharesRepurchasedRestrictedStockAwardsVestedMember_documentation_en-US" xlink:label="lab_cswc_SharesRepurchasedRestrictedStockAwardsVestedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Shares Repurchased, Restricted Stock Awards Vested</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SharesRepurchasedRestrictedStockAwardsVestedMember" xlink:href="cswc-20260930.xsd#cswc_SharesRepurchasedRestrictedStockAwardsVestedMember"/>
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    <link:label id="lab_dei_EntityShellCompany_019ff179-4f1a-74e3-a515-088aec82a94a_terseLabel_en-US" xlink:label="lab_dei_EntityShellCompany" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Shell Company</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityShellCompany"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityShellCompany" xlink:to="lab_dei_EntityShellCompany" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_FinancialCommitmentYearTwoMember_019ff179-4f9d-749b-81fa-4e6c51efcdd2_terseLabel_en-US" xlink:label="lab_cswc_FinancialCommitmentYearTwoMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2029</link:label>
    <link:label id="lab_cswc_FinancialCommitmentYearTwoMember_label_en-US" xlink:label="lab_cswc_FinancialCommitmentYearTwoMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Commitment Year Two [Member]</link:label>
    <link:label id="lab_cswc_FinancialCommitmentYearTwoMember_documentation_en-US" xlink:label="lab_cswc_FinancialCommitmentYearTwoMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial Commitment Year Two</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_FinancialCommitmentYearTwoMember" xlink:href="cswc-20260930.xsd#cswc_FinancialCommitmentYearTwoMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_FinancialCommitmentYearTwoMember" xlink:to="lab_cswc_FinancialCommitmentYearTwoMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ProceedsFromDispositionOfInvestmentDebtSecuritiesOperatingActivity_019ff179-4f9d-79b9-b702-08b19db92554_verboseLabel_en-US" xlink:label="lab_cswc_ProceedsFromDispositionOfInvestmentDebtSecuritiesOperatingActivity" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sales and repayments of debt investments in portfolio companies</link:label>
    <link:label id="lab_cswc_ProceedsFromDispositionOfInvestmentDebtSecuritiesOperatingActivity_label_en-US" xlink:label="lab_cswc_ProceedsFromDispositionOfInvestmentDebtSecuritiesOperatingActivity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds From Disposition Of Investment, Debt Securities, Operating Activity</link:label>
    <link:label id="lab_cswc_ProceedsFromDispositionOfInvestmentDebtSecuritiesOperatingActivity_documentation_en-US" xlink:label="lab_cswc_ProceedsFromDispositionOfInvestmentDebtSecuritiesOperatingActivity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Proceeds From Disposition Of Investment, Debt Securities, Operating Activity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ProceedsFromDispositionOfInvestmentDebtSecuritiesOperatingActivity" xlink:href="cswc-20260930.xsd#cswc_ProceedsFromDispositionOfInvestmentDebtSecuritiesOperatingActivity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ProceedsFromDispositionOfInvestmentDebtSecuritiesOperatingActivity" xlink:to="lab_cswc_ProceedsFromDispositionOfInvestmentDebtSecuritiesOperatingActivity" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_EnvironmentalServicesSectorMember_019ff179-4e75-761b-b598-b0f50a9ca154_terseLabel_en-US" xlink:label="lab_cswc_EnvironmentalServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Environmental Services</link:label>
    <link:label id="lab_cswc_EnvironmentalServicesSectorMember_label_en-US" xlink:label="lab_cswc_EnvironmentalServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Environmental Services Sector [Member]</link:label>
    <link:label id="lab_cswc_EnvironmentalServicesSectorMember_documentation_en-US" xlink:label="lab_cswc_EnvironmentalServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Environmental Services Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_EnvironmentalServicesSectorMember" xlink:href="cswc-20260930.xsd#cswc_EnvironmentalServicesSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_EnvironmentalServicesSectorMember" xlink:to="lab_cswc_EnvironmentalServicesSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyExpenseRatioIncludingIncentiveFee_019ff179-4e75-7ae1-b24d-9d64c36ce837_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyExpenseRatioIncludingIncentiveFee" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Ratio of operating expenses to average net assets</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyExpenseRatioIncludingIncentiveFee_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyExpenseRatioIncludingIncentiveFee" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Expense Ratio, after Fee Waiver and Incentive Fee Deduction</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyExpenseRatioIncludingIncentiveFee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyExpenseRatioIncludingIncentiveFee"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyExpenseRatioIncludingIncentiveFee" xlink:to="lab_us-gaap_InvestmentCompanyExpenseRatioIncludingIncentiveFee" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentHoldingsScheduleOfInvestmentsTableTextBlock_019ff179-4f1a-739c-87ee-2112912360ee_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentHoldingsScheduleOfInvestmentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Investments</link:label>
    <link:label id="lab_us-gaap_InvestmentHoldingsScheduleOfInvestmentsTableTextBlock_label_en-US" xlink:label="lab_us-gaap_InvestmentHoldingsScheduleOfInvestmentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Holdings, Schedule of Investments [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentHoldingsScheduleOfInvestmentsTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentHoldingsScheduleOfInvestmentsTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentHoldingsScheduleOfInvestmentsTableTextBlock" xlink:to="lab_us-gaap_InvestmentHoldingsScheduleOfInvestmentsTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EarningsPerShareTextBlock_019ff179-4f9d-7b58-9066-e1cef94e2f05_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">EARNINGS PER SHARE</link:label>
    <link:label id="lab_us-gaap_EarningsPerShareTextBlock_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareTextBlock" xlink:to="lab_us-gaap_EarningsPerShareTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EarningsPerShareAbstract_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareAbstract" xlink:to="lab_us-gaap_EarningsPerShareAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ATSOPERATINGLLCMember_019ff179-4e75-7fec-afbb-8f172f3417b0_terseLabel_en-US" xlink:label="lab_cswc_ATSOPERATINGLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ATS OPERATING, LLC</link:label>
    <link:label id="lab_cswc_ATSOPERATINGLLCMember_label_en-US" xlink:label="lab_cswc_ATSOPERATINGLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ATS OPERATING, LLC [Member]</link:label>
    <link:label id="lab_cswc_ATSOPERATINGLLCMember_documentation_en-US" xlink:label="lab_cswc_ATSOPERATINGLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ATS OPERATING, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ATSOPERATINGLLCMember" xlink:href="cswc-20260930.xsd#cswc_ATSOPERATINGLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ATSOPERATINGLLCMember" xlink:to="lab_cswc_ATSOPERATINGLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentFiscalPeriodFocus_019ff179-4f9d-7b82-ad7e-ad2316cfdb86_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalPeriodFocus" xlink:to="lab_dei_DocumentFiscalPeriodFocus" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_January2026NotesMember_label_en-US" xlink:label="lab_cswc_January2026NotesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">January 2026 Notes [Member]</link:label>
    <link:label id="lab_cswc_January2026NotesMember_documentation_en-US" xlink:label="lab_cswc_January2026NotesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">January 2026 Notes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_January2026NotesMember" xlink:href="cswc-20260930.xsd#cswc_January2026NotesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_January2026NotesMember" xlink:to="lab_cswc_January2026NotesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_PeerGroupIssuersFnTextBlock_terseLabel_en-US" xlink:label="lab_ecd_PeerGroupIssuersFnTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Peer Group Issuers, Footnote</link:label>
    <link:label id="lab_ecd_PeerGroupIssuersFnTextBlock_label_en-US" xlink:label="lab_ecd_PeerGroupIssuersFnTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Peer Group Issuers, Footnote [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeerGroupIssuersFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PeerGroupIssuersFnTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_PeerGroupIssuersFnTextBlock" xlink:to="lab_ecd_PeerGroupIssuersFnTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPaidInKindInterestCapitalized_019ff179-4f1a-7a85-8e4e-b44b168b187a_terseLabel_en-US" xlink:label="lab_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPaidInKindInterestCapitalized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">PIK Interest Capitalized</link:label>
    <link:label id="lab_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPaidInKindInterestCapitalized_label_en-US" xlink:label="lab_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPaidInKindInterestCapitalized" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Paid-in-Kind Interest Capitalized</link:label>
    <link:label id="lab_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPaidInKindInterestCapitalized_documentation_en-US" xlink:label="lab_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPaidInKindInterestCapitalized" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Paid-in-Kind Interest Capitalized</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPaidInKindInterestCapitalized" xlink:href="cswc-20260930.xsd#cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPaidInKindInterestCapitalized"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPaidInKindInterestCapitalized" xlink:to="lab_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPaidInKindInterestCapitalized" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_Liabilities_019ff179-4f1a-7caf-8ba1-5a8ffabd7d01_totalLabel_en-US" xlink:label="lab_us-gaap_Liabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total liabilities</link:label>
    <link:label id="lab_us-gaap_Liabilities_label_en-US" xlink:label="lab_us-gaap_Liabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Liabilities" xlink:to="lab_us-gaap_Liabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_TradingSymbol_019ff179-4e75-7ebb-948d-f0983e5e7485_terseLabel_en-US" xlink:label="lab_dei_TradingSymbol" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trading Symbol</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_TradingSymbol"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_TradingSymbol" xlink:to="lab_dei_TradingSymbol" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_MeasurementInputDiscountRateMember_019ff179-4f9d-7513-9c0a-aaa50069de6b_terseLabel_en-US" xlink:label="lab_us-gaap_MeasurementInputDiscountRateMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Discount Rate</link:label>
    <link:label id="lab_us-gaap_MeasurementInputDiscountRateMember_label_en-US" xlink:label="lab_us-gaap_MeasurementInputDiscountRateMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measurement Input, Discount Rate [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputDiscountRateMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputDiscountRateMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MeasurementInputDiscountRateMember" xlink:to="lab_us-gaap_MeasurementInputDiscountRateMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_WELLFOAMINCMember_019ff179-4f1a-7f08-9809-26752ad073c5_terseLabel_en-US" xlink:label="lab_cswc_WELLFOAMINCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">WELL-FOAM, INC.</link:label>
    <link:label id="lab_cswc_WELLFOAMINCMember_label_en-US" xlink:label="lab_cswc_WELLFOAMINCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">WELL-FOAM, INC [Member]</link:label>
    <link:label id="lab_cswc_WELLFOAMINCMember_documentation_en-US" xlink:label="lab_cswc_WELLFOAMINCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">WELL-FOAM, INC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_WELLFOAMINCMember" xlink:href="cswc-20260930.xsd#cswc_WELLFOAMINCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_WELLFOAMINCMember" xlink:to="lab_cswc_WELLFOAMINCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019ff179-4f9d-703f-95ab-de208bebc340_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Acquisition of fixed assets</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Property, Plant, and Equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfInterestRateDerivativesTableTextBlock_01a10bfe-d14b-748e-9e4d-92c83f9f982f_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfInterestRateDerivativesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Interest Rate Swaps</link:label>
    <link:label id="lab_us-gaap_ScheduleOfInterestRateDerivativesTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfInterestRateDerivativesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Interest Rate Derivatives [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInterestRateDerivativesTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfInterestRateDerivativesTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfInterestRateDerivativesTableTextBlock" xlink:to="lab_us-gaap_ScheduleOfInterestRateDerivativesTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_WASHWAXHOLDINGSLLCMember_019ff179-4f1a-726f-bf65-e63de9e173c0_terseLabel_en-US" xlink:label="lab_cswc_WASHWAXHOLDINGSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">WASH &amp; WAX SYSTEMS LLC</link:label>
    <link:label id="lab_cswc_WASHWAXHOLDINGSLLCMember_label_en-US" xlink:label="lab_cswc_WASHWAXHOLDINGSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">WASH &amp; WAX HOLDINGS LLC [Member]</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_cswc_WASHWAXHOLDINGSLLCMember" xlink:href="cswc-20260930.xsd#cswc_WASHWAXHOLDINGSLLCMember"/>
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    <link:label id="lab_us-gaap_SaleOfStockNameOfTransactionDomain_019ff179-4f1a-703e-8054-bdca3b9dedc9_terseLabel_en-US" xlink:label="lab_us-gaap_SaleOfStockNameOfTransactionDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sale of Stock [Domain]</link:label>
    <link:label id="lab_us-gaap_SaleOfStockNameOfTransactionDomain_label_en-US" xlink:label="lab_us-gaap_SaleOfStockNameOfTransactionDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale of Stock [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
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    <link:label id="lab_us-gaap_IncomeTaxDisclosureAbstract_label_en-US" xlink:label="lab_us-gaap_IncomeTaxDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Disclosure [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract" xlink:to="lab_us-gaap_IncomeTaxDisclosureAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SBADebenturesMember_label_en-US" xlink:label="lab_cswc_SBADebenturesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">SBA Debentures [Member]</link:label>
    <link:label id="lab_cswc_SBADebenturesMember_documentation_en-US" xlink:label="lab_cswc_SBADebenturesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">SBA Debentures</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SBADebenturesMember" xlink:href="cswc-20260930.xsd#cswc_SBADebenturesMember"/>
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    <link:label id="lab_us-gaap_DerivativeFixedInterestRate_01a10bf5-5e1f-7084-bc82-9ebaab4362e3_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeFixedInterestRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Company Receives</link:label>
    <link:label id="lab_us-gaap_DerivativeFixedInterestRate_label_en-US" xlink:label="lab_us-gaap_DerivativeFixedInterestRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative, Fixed Interest Rate</link:label>
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    <link:label id="lab_us-gaap_ConcentrationRiskLineItems_label_en-US" xlink:label="lab_us-gaap_ConcentrationRiskLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Concentration Risk [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConcentrationRiskLineItems" xlink:to="lab_us-gaap_ConcentrationRiskLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_MediumTermNotesMember_019ff179-4f1a-76bc-af45-c34f697c87ff_terseLabel_en-US" xlink:label="lab_us-gaap_MediumTermNotesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Notes</link:label>
    <link:label id="lab_us-gaap_MediumTermNotesMember_label_en-US" xlink:label="lab_us-gaap_MediumTermNotesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Medium-Term Note [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MediumTermNotesMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MediumTermNotesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MediumTermNotesMember" xlink:to="lab_us-gaap_MediumTermNotesMember" xlink:type="arc" order="1"/>
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    <link:label id="lab_cswc_BuildingInfrastructureProductsSectorMember_label_en-US" xlink:label="lab_cswc_BuildingInfrastructureProductsSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Building &amp; Infrastructure Products Sector [Member]</link:label>
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    <link:label id="lab_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_019ff179-4f1b-706d-8445-ba01f2a38807_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityCommitmentFeePercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commitment fee percentage</link:label>
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    <link:label id="lab_us-gaap_CreditFacilityDomain_019ff179-4f1a-7052-b165-9fda5424419a_terseLabel_en-US" xlink:label="lab_us-gaap_CreditFacilityDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit Facility [Domain]</link:label>
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    <link:label id="lab_us-gaap_Dividends_label_en-US" xlink:label="lab_us-gaap_Dividends" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Dividends" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Dividends"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Dividends" xlink:to="lab_us-gaap_Dividends" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_MICROBEFORMULASLLCMember_019ff179-4f1b-7ff2-9b4f-96cfcf37d5bc_terseLabel_en-US" xlink:label="lab_cswc_MICROBEFORMULASLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">MICROBE FORMULAS LLC</link:label>
    <link:label id="lab_cswc_MICROBEFORMULASLLCMember_label_en-US" xlink:label="lab_cswc_MICROBEFORMULASLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">MICROBE FORMULAS LLC [Member]</link:label>
    <link:label id="lab_cswc_MICROBEFORMULASLLCMember_documentation_en-US" xlink:label="lab_cswc_MICROBEFORMULASLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">MICROBE FORMULAS LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_MICROBEFORMULASLLCMember" xlink:href="cswc-20260930.xsd#cswc_MICROBEFORMULASLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_MICROBEFORMULASLLCMember" xlink:to="lab_cswc_MICROBEFORMULASLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentsFairValueDisclosureAbstract_019ff179-4f1a-7c26-8bcf-31f926de133e_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentsFairValueDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value</link:label>
    <link:label id="lab_us-gaap_InvestmentsFairValueDisclosureAbstract_label_en-US" xlink:label="lab_us-gaap_InvestmentsFairValueDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments, Fair Value Disclosure [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsFairValueDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsFairValueDisclosureAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentsFairValueDisclosureAbstract" xlink:to="lab_us-gaap_InvestmentsFairValueDisclosureAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ff179-4f9d-7a70-9b8f-e4255af7422b_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
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    <link:label id="lab_cswc_October2026NotesMember_019ff179-4f9d-7474-ab0b-e5e43120d36e_terseLabel_en-US" xlink:label="lab_cswc_October2026NotesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">October 2026 Notes</link:label>
    <link:label id="lab_cswc_October2026NotesMember_label_en-US" xlink:label="lab_cswc_October2026NotesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">October 2026 Notes [Member]</link:label>
    <link:label id="lab_cswc_October2026NotesMember_documentation_en-US" xlink:label="lab_cswc_October2026NotesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">October 2026 Notes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_October2026NotesMember" xlink:href="cswc-20260930.xsd#cswc_October2026NotesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_October2026NotesMember" xlink:to="lab_cswc_October2026NotesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_PharmaceuticalsBiotechnologyLifeSciencesSectorMember_019ff179-4e75-74b3-8f91-dbe326bd89e2_terseLabel_en-US" xlink:label="lab_cswc_PharmaceuticalsBiotechnologyLifeSciencesSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pharmaceuticals, Biotechnology &amp; Life Sciences</link:label>
    <link:label id="lab_cswc_PharmaceuticalsBiotechnologyLifeSciencesSectorMember_label_en-US" xlink:label="lab_cswc_PharmaceuticalsBiotechnologyLifeSciencesSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pharmaceuticals, Biotechnology &amp; Life Sciences Sector [Member]</link:label>
    <link:label id="lab_cswc_PharmaceuticalsBiotechnologyLifeSciencesSectorMember_documentation_en-US" xlink:label="lab_cswc_PharmaceuticalsBiotechnologyLifeSciencesSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Pharmaceuticals, Biotechnology &amp; Life Sciences Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_PharmaceuticalsBiotechnologyLifeSciencesSectorMember" xlink:href="cswc-20260930.xsd#cswc_PharmaceuticalsBiotechnologyLifeSciencesSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_PharmaceuticalsBiotechnologyLifeSciencesSectorMember" xlink:to="lab_cswc_PharmaceuticalsBiotechnologyLifeSciencesSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DividendAndInterestReceivable_019ff179-4f1a-72f5-978f-21c7e442dc7b_terseLabel_en-US" xlink:label="lab_us-gaap_DividendAndInterestReceivable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends and interest</link:label>
    <link:label id="lab_us-gaap_DividendAndInterestReceivable_label_en-US" xlink:label="lab_us-gaap_DividendAndInterestReceivable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividend and Interest Receivable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendAndInterestReceivable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendAndInterestReceivable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DividendAndInterestReceivable" xlink:to="lab_us-gaap_DividendAndInterestReceivable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinancialSupportToNonconsolidatedLegalEntityAxis_019ff179-4f1a-7966-96b5-be50aac83cf3_terseLabel_en-US" xlink:label="lab_us-gaap_FinancialSupportToNonconsolidatedLegalEntityAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial Support to Nonconsolidated Legal Entity [Axis]</link:label>
    <link:label id="lab_us-gaap_FinancialSupportToNonconsolidatedLegalEntityAxis_label_en-US" xlink:label="lab_us-gaap_FinancialSupportToNonconsolidatedLegalEntityAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Support to Nonconsolidated Legal Entity [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialSupportToNonconsolidatedLegalEntityAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialSupportToNonconsolidatedLegalEntityAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancialSupportToNonconsolidatedLegalEntityAxis" xlink:to="lab_us-gaap_FinancialSupportToNonconsolidatedLegalEntityAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2031Member_019ff179-4f1a-7cd2-b95b-7779ce78bc66_terseLabel_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2031Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debentures due September 2031</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2031Member_label_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2031Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures, Due September 2031 [Member]</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2031Member_documentation_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2031Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures, Due September 2031</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SmallBusinessAdministrationDebenturesDueSeptember2031Member" xlink:href="cswc-20260930.xsd#cswc_SmallBusinessAdministrationDebenturesDueSeptember2031Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SmallBusinessAdministrationDebenturesDueSeptember2031Member" xlink:to="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2031Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DividendsReceivable_019ff179-4f9d-748e-93f1-6c099aaaac9a_terseLabel_en-US" xlink:label="lab_us-gaap_DividendsReceivable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends receivable</link:label>
    <link:label id="lab_us-gaap_DividendsReceivable_label_en-US" xlink:label="lab_us-gaap_DividendsReceivable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends Receivable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsReceivable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsReceivable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DividendsReceivable" xlink:to="lab_us-gaap_DividendsReceivable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_019ff179-4f1a-720c-8b5f-ecdf6dd3699c_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Changes in Fair Value of Investments Measured Using Level 3 Inputs</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock"/>
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    <link:label id="lab_us-gaap_InvestmentCompanyFinancialHighlightsRollForward_019ff179-4f1a-7ef9-9289-205fd3712089_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyFinancialHighlightsRollForward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net asset value</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyFinancialHighlightsRollForward_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyFinancialHighlightsRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Financial Highlights [Roll Forward]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyFinancialHighlightsRollForward" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyFinancialHighlightsRollForward"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyFinancialHighlightsRollForward" xlink:to="lab_us-gaap_InvestmentCompanyFinancialHighlightsRollForward" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AwardTmgPredtrmndFlag_terseLabel_en-US" xlink:label="lab_ecd_AwardTmgPredtrmndFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Award Timing Predetermined</link:label>
    <link:label id="lab_ecd_AwardTmgPredtrmndFlag_label_en-US" xlink:label="lab_ecd_AwardTmgPredtrmndFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Timing Predetermined [Flag]</link:label>
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    <link:label id="lab_ecd_AdjToPeoCompFnTextBlock_label_en-US" xlink:label="lab_ecd_AdjToPeoCompFnTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustment To PEO Compensation, Footnote [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AdjToPeoCompFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AdjToPeoCompFnTextBlock"/>
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    <link:label id="lab_cswc_SaleOfStockNumberOfAdditionalSalesAgents_019ff179-4f1a-7c40-94cf-38e004b6b4e2_terseLabel_en-US" xlink:label="lab_cswc_SaleOfStockNumberOfAdditionalSalesAgents" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of additional sales agents</link:label>
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    <link:label id="lab_cswc_SaleOfStockNumberOfAdditionalSalesAgents_documentation_en-US" xlink:label="lab_cswc_SaleOfStockNumberOfAdditionalSalesAgents" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sale Of Stock, Number Of Additional Sales Agents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SaleOfStockNumberOfAdditionalSalesAgents" xlink:href="cswc-20260930.xsd#cswc_SaleOfStockNumberOfAdditionalSalesAgents"/>
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    <link:label id="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_019ff179-4f1b-7d76-add7-9b08aac468c7_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based compensation</link:label>
    <link:label id="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_label_en-US" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">APIC, Share-Based Payment Arrangement, Increase for Cost Recognition</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
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    <link:label id="lab_us-gaap_FairValueInputsLevel1Member_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Inputs, Level 1 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel1Member" xlink:to="lab_us-gaap_FairValueInputsLevel1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_LongTermDebtMaturityAfterYearFour_019ff179-4f9d-79aa-8693-c83011e03441_terseLabel_en-US" xlink:label="lab_cswc_LongTermDebtMaturityAfterYearFour" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Thereafter</link:label>
    <link:label id="lab_cswc_LongTermDebtMaturityAfterYearFour_label_en-US" xlink:label="lab_cswc_LongTermDebtMaturityAfterYearFour" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-Term Debt, Maturity, after Year Four</link:label>
    <link:label id="lab_cswc_LongTermDebtMaturityAfterYearFour_documentation_en-US" xlink:label="lab_cswc_LongTermDebtMaturityAfterYearFour" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Long-Term Debt, Maturity, after Year Four</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_LongTermDebtMaturityAfterYearFour" xlink:href="cswc-20260930.xsd#cswc_LongTermDebtMaturityAfterYearFour"/>
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    <link:label id="lab_us-gaap_DebtInstrumentConvertibleConversionRatio1_019ff179-4f9d-7a01-8622-07e47033e743_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleConversionRatio1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Conversion rate</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleConversionRatio1_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleConversionRatio1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Convertible, Conversion Ratio</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionRatio1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentConvertibleConversionRatio1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentConvertibleConversionRatio1" xlink:to="lab_us-gaap_DebtInstrumentConvertibleConversionRatio1" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_September2030NotesMember_019ff179-4f9d-7ece-b730-3e39f8ab6afe_terseLabel_en-US" xlink:label="lab_cswc_September2030NotesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">September 2030 Notes</link:label>
    <link:label id="lab_cswc_September2030NotesMember_label_en-US" xlink:label="lab_cswc_September2030NotesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">September 2030 Notes [Member]</link:label>
    <link:label id="lab_cswc_September2030NotesMember_documentation_en-US" xlink:label="lab_cswc_September2030NotesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">September 2030 Notes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_September2030NotesMember" xlink:href="cswc-20260930.xsd#cswc_September2030NotesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_September2030NotesMember" xlink:to="lab_cswc_September2030NotesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AreaOfRealEstateProperty_019ff179-4f1a-72de-921a-a4c18fc1fe0c_terseLabel_en-US" xlink:label="lab_us-gaap_AreaOfRealEstateProperty" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Area of additional office space</link:label>
    <link:label id="lab_us-gaap_AreaOfRealEstateProperty_label_en-US" xlink:label="lab_us-gaap_AreaOfRealEstateProperty" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Area of Real Estate Property</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AreaOfRealEstateProperty" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AreaOfRealEstateProperty"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AreaOfRealEstateProperty" xlink:to="lab_us-gaap_AreaOfRealEstateProperty" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentAffiliatedIssuerMember_019ff179-4e75-7d44-910b-0d5298a44ffe_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentAffiliatedIssuerMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total Control &amp; Affiliate Investments</link:label>
    <link:label id="lab_us-gaap_InvestmentAffiliatedIssuerMember_label_en-US" xlink:label="lab_us-gaap_InvestmentAffiliatedIssuerMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Affiliated Issuer [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentAffiliatedIssuerMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentAffiliatedIssuerMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentAffiliatedIssuerMember" xlink:to="lab_us-gaap_InvestmentAffiliatedIssuerMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense_019ff179-4f1a-787f-9b1d-d7d0ea5b2d8a_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest or penalties expense</link:label>
    <link:label id="lab_us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense_label_en-US" xlink:label="lab_us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Examination, Penalties and Interest Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense" xlink:to="lab_us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_IndustrialMachinerySectorMember_019ff179-4f1a-736c-9c50-f9331bf41a02_terseLabel_en-US" xlink:label="lab_cswc_IndustrialMachinerySectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Industrial Machinery</link:label>
    <link:label id="lab_cswc_IndustrialMachinerySectorMember_label_en-US" xlink:label="lab_cswc_IndustrialMachinerySectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Industrial Machinery Sector [Member]</link:label>
    <link:label id="lab_cswc_IndustrialMachinerySectorMember_documentation_en-US" xlink:label="lab_cswc_IndustrialMachinerySectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Industrial Machinery Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_IndustrialMachinerySectorMember" xlink:href="cswc-20260930.xsd#cswc_IndustrialMachinerySectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_IndustrialMachinerySectorMember" xlink:to="lab_cswc_IndustrialMachinerySectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_EASYLLAMAINC.Member_01a13e50-ad67-7a56-bfb7-013971ec1df6_terseLabel_en-US" xlink:label="lab_cswc_EASYLLAMAINC.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">EASYLLAMA, INC.</link:label>
    <link:label id="lab_cswc_EASYLLAMAINC.Member_label_en-US" xlink:label="lab_cswc_EASYLLAMAINC.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">EASYLLAMA, INC. [Member]</link:label>
    <link:label id="lab_cswc_EASYLLAMAINC.Member_documentation_en-US" xlink:label="lab_cswc_EASYLLAMAINC.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">EASYLLAMA, INC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_EASYLLAMAINC.Member" xlink:href="cswc-20260930.xsd#cswc_EASYLLAMAINC.Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_EASYLLAMAINC.Member" xlink:to="lab_cswc_EASYLLAMAINC.Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesAbstract_019ff179-4e75-7973-8e2e-8070f1767af6_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax liabilities:</link:label>
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesAbstract_label_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Liabilities, Gross [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredTaxLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract" xlink:to="lab_us-gaap_DeferredTaxLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeApproachValuationTechniqueMember_019ff179-4f1a-72f6-a813-862ad86f8278_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeApproachValuationTechniqueMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Approach</link:label>
    <link:label id="lab_us-gaap_IncomeApproachValuationTechniqueMember_label_en-US" xlink:label="lab_us-gaap_IncomeApproachValuationTechniqueMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Valuation, Income Approach [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeApproachValuationTechniqueMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeApproachValuationTechniqueMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeApproachValuationTechniqueMember" xlink:to="lab_us-gaap_IncomeApproachValuationTechniqueMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongTermDebtFairValue_019ff179-4e75-7fbb-8db0-1097f4574af8_verboseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtFairValue" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Estimated Fair Value</link:label>
    <link:label id="lab_us-gaap_LongTermDebtFairValue_label_en-US" xlink:label="lab_us-gaap_LongTermDebtFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-Term Debt, Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtFairValue" xlink:to="lab_us-gaap_LongTermDebtFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PlanNameDomain_019ff179-4e74-7293-8753-fef80f9c7e02_terseLabel_en-US" xlink:label="lab_us-gaap_PlanNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Plan Name [Domain]</link:label>
    <link:label id="lab_us-gaap_PlanNameDomain_label_en-US" xlink:label="lab_us-gaap_PlanNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PlanNameDomain" xlink:to="lab_us-gaap_PlanNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeaseRightOfUseAsset_019ff179-4f1a-7632-bd45-fe95d133b519_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating lease asset</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseRightOfUseAsset_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Lease, Right-of-Use Asset</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseRightOfUseAsset" xlink:to="lab_us-gaap_OperatingLeaseRightOfUseAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyPercentOfNonqualifiedAssets_019ff179-4f9d-7798-b11e-8ebd3a033fe9_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyPercentOfNonqualifiedAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Nonqualified assets</link:label>
    <link:label id="lab_cswc_InvestmentCompanyPercentOfNonqualifiedAssets_label_en-US" xlink:label="lab_cswc_InvestmentCompanyPercentOfNonqualifiedAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Percent Of Nonqualified Assets</link:label>
    <link:label id="lab_cswc_InvestmentCompanyPercentOfNonqualifiedAssets_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyPercentOfNonqualifiedAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Percent Of Nonqualified Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyPercentOfNonqualifiedAssets" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyPercentOfNonqualifiedAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyPercentOfNonqualifiedAssets" xlink:to="lab_cswc_InvestmentCompanyPercentOfNonqualifiedAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ConcentrationRiskTypeDomain_019ff179-4e75-7fe2-9933-83a0dfaf2b8a_terseLabel_en-US" xlink:label="lab_us-gaap_ConcentrationRiskTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Concentration Risk Type [Domain]</link:label>
    <link:label id="lab_us-gaap_ConcentrationRiskTypeDomain_label_en-US" xlink:label="lab_us-gaap_ConcentrationRiskTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Concentration Risk Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain" xlink:to="lab_us-gaap_ConcentrationRiskTypeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GuaranteeObligationsByNatureAxis_019ff179-4e75-7846-b295-73665e209659_terseLabel_en-US" xlink:label="lab_us-gaap_GuaranteeObligationsByNatureAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Guarantor Obligations, Nature [Axis]</link:label>
    <link:label id="lab_us-gaap_GuaranteeObligationsByNatureAxis_label_en-US" xlink:label="lab_us-gaap_GuaranteeObligationsByNatureAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Guarantor Obligations, Nature [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeObligationsByNatureAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GuaranteeObligationsByNatureAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GuaranteeObligationsByNatureAxis" xlink:to="lab_us-gaap_GuaranteeObligationsByNatureAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueDisclosuresAbstract_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Disclosures [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract" xlink:to="lab_us-gaap_FairValueDisclosuresAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyExtinguishmentOfDebtGainLossPerShareNetOfTax_019ff179-4f9d-774a-90d9-9586ed23b964_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyExtinguishmentOfDebtGainLossPerShareNetOfTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Realized loss on extinguishment of debt (in usd per share)</link:label>
    <link:label id="lab_cswc_InvestmentCompanyExtinguishmentOfDebtGainLossPerShareNetOfTax_label_en-US" xlink:label="lab_cswc_InvestmentCompanyExtinguishmentOfDebtGainLossPerShareNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Extinguishment of Debt, Gain (Loss), Per Share, Net of Tax</link:label>
    <link:label id="lab_cswc_InvestmentCompanyExtinguishmentOfDebtGainLossPerShareNetOfTax_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyExtinguishmentOfDebtGainLossPerShareNetOfTax" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Extinguishment of Debt, Gain (Loss), Per Share, Net of Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyExtinguishmentOfDebtGainLossPerShareNetOfTax" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyExtinguishmentOfDebtGainLossPerShareNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyExtinguishmentOfDebtGainLossPerShareNetOfTax" xlink:to="lab_cswc_InvestmentCompanyExtinguishmentOfDebtGainLossPerShareNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentNameDomain_019ff179-4f1a-7885-ae5f-74478407be8a_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Name [Domain]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentNameDomain_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentNameDomain" xlink:to="lab_us-gaap_DebtInstrumentNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LineOfCredit_019ff179-4f9d-7ee0-937a-2993f603879b_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCredit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit Facilities</link:label>
    <link:label id="lab_us-gaap_LineOfCredit_019ff179-4f9d-719c-b2c1-b5971e9589e7_verboseLabel_en-US" xlink:label="lab_us-gaap_LineOfCredit" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Senior credit facility payable</link:label>
    <link:label id="lab_us-gaap_LineOfCredit_label_en-US" xlink:label="lab_us-gaap_LineOfCredit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-Term Line of Credit</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCredit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LineOfCredit" xlink:to="lab_us-gaap_LineOfCredit" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetConversionOrReclassificationOfSecurity_019ff179-4f9d-7c10-b610-e711258558d7_terseLabel_en-US" xlink:label="lab_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetConversionOrReclassificationOfSecurity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Conversion/Exchange of Security</link:label>
    <link:label id="lab_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetConversionOrReclassificationOfSecurity_label_en-US" xlink:label="lab_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetConversionOrReclassificationOfSecurity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Conversion Or Reclassification Of Security</link:label>
    <link:label id="lab_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetConversionOrReclassificationOfSecurity_documentation_en-US" xlink:label="lab_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetConversionOrReclassificationOfSecurity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Conversion Or Reclassification Of Security</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetConversionOrReclassificationOfSecurity" xlink:href="cswc-20260930.xsd#cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetConversionOrReclassificationOfSecurity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetConversionOrReclassificationOfSecurity" xlink:to="lab_cswc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetConversionOrReclassificationOfSecurity" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_TrdArrExpirationDate_terseLabel_en-US" xlink:label="lab_ecd_TrdArrExpirationDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expiration Date</link:label>
    <link:label id="lab_ecd_TrdArrExpirationDate_label_en-US" xlink:label="lab_ecd_TrdArrExpirationDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading Arrangement Expiration Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrExpirationDate" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TrdArrExpirationDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_TrdArrExpirationDate" xlink:to="lab_ecd_TrdArrExpirationDate" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_019ff179-4f1a-7a08-ad95-ef1f85387637_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2031</link:label>
    <link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_label_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-Term Debt, Maturity, Year Four</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:to="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2034Member_019ff179-4f9d-78ce-a00c-f75b43d8e2f3_terseLabel_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2034Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debentures due March 2034</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2034Member_label_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2034Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures, Due March 2034 [Member]</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2034Member_documentation_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2034Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures, Due March 2034</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SmallBusinessAdministrationDebenturesDueMarch2034Member" xlink:href="cswc-20260930.xsd#cswc_SmallBusinessAdministrationDebenturesDueMarch2034Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SmallBusinessAdministrationDebenturesDueMarch2034Member" xlink:to="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2034Member" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DebtIssuanceCostsNetAndOtherAssets_019ff179-4f9d-7dd6-af1b-de5c5718d3c3_verboseLabel_en-US" xlink:label="lab_cswc_DebtIssuanceCostsNetAndOtherAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Deferred financing costs and other assets</link:label>
    <link:label id="lab_cswc_DebtIssuanceCostsNetAndOtherAssets_label_en-US" xlink:label="lab_cswc_DebtIssuanceCostsNetAndOtherAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Issuance Costs, Net And Other Assets</link:label>
    <link:label id="lab_cswc_DebtIssuanceCostsNetAndOtherAssets_documentation_en-US" xlink:label="lab_cswc_DebtIssuanceCostsNetAndOtherAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Issuance Costs, Net And Other Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DebtIssuanceCostsNetAndOtherAssets" xlink:href="cswc-20260930.xsd#cswc_DebtIssuanceCostsNetAndOtherAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DebtIssuanceCostsNetAndOtherAssets" xlink:to="lab_cswc_DebtIssuanceCostsNetAndOtherAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DistributionSectorMember_019ff179-4f1a-74fc-9b6a-60d1769eeba2_terseLabel_en-US" xlink:label="lab_cswc_DistributionSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Distribution</link:label>
    <link:label id="lab_cswc_DistributionSectorMember_label_en-US" xlink:label="lab_cswc_DistributionSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Distribution Sector [Member]</link:label>
    <link:label id="lab_cswc_DistributionSectorMember_documentation_en-US" xlink:label="lab_cswc_DistributionSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Distribution Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DistributionSectorMember" xlink:href="cswc-20260930.xsd#cswc_DistributionSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DistributionSectorMember" xlink:to="lab_cswc_DistributionSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_BuildingMember_019ff179-4e75-7a1b-af40-df76772cc35f_terseLabel_en-US" xlink:label="lab_us-gaap_BuildingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Office Space</link:label>
    <link:label id="lab_us-gaap_BuildingMember_label_en-US" xlink:label="lab_us-gaap_BuildingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Building [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BuildingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BuildingMember" xlink:to="lab_us-gaap_BuildingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SubordinatedDebtMember_019ff179-4f1a-7c80-a848-b6758da254ed_terseLabel_en-US" xlink:label="lab_us-gaap_SubordinatedDebtMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subordinated debt</link:label>
    <link:label id="lab_us-gaap_SubordinatedDebtMember_label_en-US" xlink:label="lab_us-gaap_SubordinatedDebtMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subordinated Debt [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubordinatedDebtMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubordinatedDebtMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubordinatedDebtMember" xlink:to="lab_us-gaap_SubordinatedDebtMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UnsecuredDebt_019ff179-4f1a-7e03-a1cc-c8e606bcc81b_terseLabel_en-US" xlink:label="lab_us-gaap_UnsecuredDebt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SBA Debentures (net of $7,336 and $5,333, respectively, of unamortized debt issuance costs)</link:label>
    <link:label id="lab_us-gaap_UnsecuredDebt_label_en-US" xlink:label="lab_us-gaap_UnsecuredDebt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unsecured Debt</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnsecuredDebt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnsecuredDebt" xlink:to="lab_us-gaap_UnsecuredDebt" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AggtPnsnAdjsSvcCstMember_terseLabel_en-US" xlink:label="lab_ecd_AggtPnsnAdjsSvcCstMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Aggregate Pension Adjustments Service Cost</link:label>
    <link:label id="lab_ecd_AggtPnsnAdjsSvcCstMember_label_en-US" xlink:label="lab_ecd_AggtPnsnAdjsSvcCstMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aggregate Pension Adjustments Service Cost [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AggtPnsnAdjsSvcCstMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AggtPnsnAdjsSvcCstMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AggtPnsnAdjsSvcCstMember" xlink:to="lab_ecd_AggtPnsnAdjsSvcCstMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DebtInstrumentIssuancePricePercentOfPrincipalAmount_019ff179-4f9d-75c9-8132-475c8a073faf_terseLabel_en-US" xlink:label="lab_cswc_DebtInstrumentIssuancePricePercentOfPrincipalAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Issuance price percent received</link:label>
    <link:label id="lab_cswc_DebtInstrumentIssuancePricePercentOfPrincipalAmount_label_en-US" xlink:label="lab_cswc_DebtInstrumentIssuancePricePercentOfPrincipalAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Issuance Price, Percent Of Principal Amount</link:label>
    <link:label id="lab_cswc_DebtInstrumentIssuancePricePercentOfPrincipalAmount_documentation_en-US" xlink:label="lab_cswc_DebtInstrumentIssuancePricePercentOfPrincipalAmount" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instrument, Issuance Price, Percent Of Principal Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DebtInstrumentIssuancePricePercentOfPrincipalAmount" xlink:href="cswc-20260930.xsd#cswc_DebtInstrumentIssuancePricePercentOfPrincipalAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DebtInstrumentIssuancePricePercentOfPrincipalAmount" xlink:to="lab_cswc_DebtInstrumentIssuancePricePercentOfPrincipalAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DebtInstrumentRatePeriodAxis_019ff179-4e75-7a98-b7ed-7ac6dcefcbde_terseLabel_en-US" xlink:label="lab_cswc_DebtInstrumentRatePeriodAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Rate Period [Axis]</link:label>
    <link:label id="lab_cswc_DebtInstrumentRatePeriodAxis_label_en-US" xlink:label="lab_cswc_DebtInstrumentRatePeriodAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Rate Period [Axis]</link:label>
    <link:label id="lab_cswc_DebtInstrumentRatePeriodAxis_documentation_en-US" xlink:label="lab_cswc_DebtInstrumentRatePeriodAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instrument, Rate Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DebtInstrumentRatePeriodAxis" xlink:href="cswc-20260930.xsd#cswc_DebtInstrumentRatePeriodAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DebtInstrumentRatePeriodAxis" xlink:to="lab_cswc_DebtInstrumentRatePeriodAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ProceedsFromIssuanceOfCommonStock_019ff179-4f1a-7ff1-a697-376708559c66_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from common stock offering</link:label>
    <link:label id="lab_us-gaap_ProceedsFromIssuanceOfCommonStock_label_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Issuance of Common Stock</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:to="lab_us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_019ff179-4e75-7f2a-b5c1-abaeb14c8e7c_totalLabel_en-US" xlink:label="lab_us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net investment income</link:label>
    <link:label id="lab_us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_019ff179-4e75-7622-885c-1c3fffb8492c_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net investment income</link:label>
    <link:label id="lab_us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_label_en-US" xlink:label="lab_us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Income, Operating, after Expense and Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax" xlink:to="lab_us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_RevenueRecognitionFeeIncomePolicyPolicyTextBlock_019ff179-4f1a-758f-9e1e-0ff28e0b2cdc_terseLabel_en-US" xlink:label="lab_cswc_RevenueRecognitionFeeIncomePolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fee Income</link:label>
    <link:label id="lab_cswc_RevenueRecognitionFeeIncomePolicyPolicyTextBlock_label_en-US" xlink:label="lab_cswc_RevenueRecognitionFeeIncomePolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue Recognition, Fee Income Policy [Policy Text Block]</link:label>
    <link:label id="lab_cswc_RevenueRecognitionFeeIncomePolicyPolicyTextBlock_documentation_en-US" xlink:label="lab_cswc_RevenueRecognitionFeeIncomePolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Revenue Recognition, Fee Income Policy</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_RevenueRecognitionFeeIncomePolicyPolicyTextBlock" xlink:href="cswc-20260930.xsd#cswc_RevenueRecognitionFeeIncomePolicyPolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_RevenueRecognitionFeeIncomePolicyPolicyTextBlock" xlink:to="lab_cswc_RevenueRecognitionFeeIncomePolicyPolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_019ff179-4e74-7686-99c4-ba2b3e2ab0df_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from investing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseRemainingLeaseTerm_019ff179-4f9d-7eee-a127-2bff799962a4_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseRemainingLeaseTerm" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Remaining lease term (in years)</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseRemainingLeaseTerm_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseRemainingLeaseTerm" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Operating Lease, Remaining Lease Term</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseRemainingLeaseTerm" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseRemainingLeaseTerm"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseRemainingLeaseTerm" xlink:to="lab_us-gaap_LesseeOperatingLeaseRemainingLeaseTerm" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesTable_019ff179-4f9d-7ecc-9a9c-25e4b1081873_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investments in and Advances to Affiliates [Table]</link:label>
    <link:label id="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesTable_label_en-US" xlink:label="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments in and Advances to Affiliates [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesTable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInAndAdvancesToAffiliatesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesTable" xlink:to="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestRateSwapMember_01a10bf5-5e1f-7403-8952-0d4300ba71cc_terseLabel_en-US" xlink:label="lab_us-gaap_InterestRateSwapMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest rate swap</link:label>
    <link:label id="lab_us-gaap_InterestRateSwapMember_label_en-US" xlink:label="lab_us-gaap_InterestRateSwapMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Rate Swap [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestRateSwapMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestRateSwapMember" xlink:to="lab_us-gaap_InterestRateSwapMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtDisclosureTextBlock_019ff179-4f1a-784c-ac75-7e9caf5988e1_terseLabel_en-US" xlink:label="lab_us-gaap_DebtDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">BORROWINGS</link:label>
    <link:label id="lab_us-gaap_DebtDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_DebtDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Disclosure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtDisclosureTextBlock" xlink:to="lab_us-gaap_DebtDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UndistributedEarningsLossAvailableToCommonShareholdersDiluted_019ff179-4f1a-70df-9c05-1fa02a6ea7b9_terseLabel_en-US" xlink:label="lab_us-gaap_UndistributedEarningsLossAvailableToCommonShareholdersDiluted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Numerator for increase in net assets per share</link:label>
    <link:label id="lab_us-gaap_UndistributedEarningsLossAvailableToCommonShareholdersDiluted_label_en-US" xlink:label="lab_us-gaap_UndistributedEarningsLossAvailableToCommonShareholdersDiluted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Undistributed Earnings (Loss) Available to Common Shareholders, Diluted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UndistributedEarningsLossAvailableToCommonShareholdersDiluted" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UndistributedEarningsLossAvailableToCommonShareholdersDiluted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UndistributedEarningsLossAvailableToCommonShareholdersDiluted" xlink:to="lab_us-gaap_UndistributedEarningsLossAvailableToCommonShareholdersDiluted" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_FBFINVESTMENTSLIMITEDMember_01a16479-e2cd-7ca4-85bb-21266f7c83a7_terseLabel_en-US" xlink:label="lab_cswc_FBFINVESTMENTSLIMITEDMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">FBF INVESTMENTS LIMITED</link:label>
    <link:label id="lab_cswc_FBFINVESTMENTSLIMITEDMember_label_en-US" xlink:label="lab_cswc_FBFINVESTMENTSLIMITEDMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">FBF INVESTMENTS LIMITED [Member]</link:label>
    <link:label id="lab_cswc_FBFINVESTMENTSLIMITEDMember_documentation_en-US" xlink:label="lab_cswc_FBFINVESTMENTSLIMITEDMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">FBF INVESTMENTS LIMITED</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_FBFINVESTMENTSLIMITEDMember" xlink:href="cswc-20260930.xsd#cswc_FBFINVESTMENTSLIMITEDMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_FBFINVESTMENTSLIMITEDMember" xlink:to="lab_cswc_FBFINVESTMENTSLIMITEDMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DeferredFinanceCostsNet_019ff179-4f1a-7f84-87c8-d6d11ed94981_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredFinanceCostsNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt issuance costs (net of accumulated amortization of $15,637 and $13,172, respectively)</link:label>
    <link:label id="lab_us-gaap_DeferredFinanceCostsNet_label_en-US" xlink:label="lab_us-gaap_DeferredFinanceCostsNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Issuance Costs, Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredFinanceCostsNet" xlink:to="lab_us-gaap_DeferredFinanceCostsNet" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_PeoActuallyPaidCompAmt_terseLabel_en-US" xlink:label="lab_ecd_PeoActuallyPaidCompAmt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">PEO Actually Paid Compensation Amount</link:label>
    <link:label id="lab_ecd_PeoActuallyPaidCompAmt_label_en-US" xlink:label="lab_ecd_PeoActuallyPaidCompAmt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">PEO Actually Paid Compensation Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeoActuallyPaidCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PeoActuallyPaidCompAmt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_PeoActuallyPaidCompAmt" xlink:to="lab_ecd_PeoActuallyPaidCompAmt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SecuredDebtMember_019ff179-4f1a-7538-bca1-feb0d4c612ca_terseLabel_en-US" xlink:label="lab_us-gaap_SecuredDebtMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SPV Credit Facility</link:label>
    <link:label id="lab_us-gaap_SecuredDebtMember_019ff179-4f1a-709f-919f-0266b13cbeef_verboseLabel_en-US" xlink:label="lab_us-gaap_SecuredDebtMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">SPV Credit Facility</link:label>
    <link:label id="lab_us-gaap_SecuredDebtMember_label_en-US" xlink:label="lab_us-gaap_SecuredDebtMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Secured Debt [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuredDebtMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SecuredDebtMember" xlink:to="lab_us-gaap_SecuredDebtMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInDepositOtherAssets_019ff179-4f9d-778a-ab04-f660f6a513a9_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInDepositOtherAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Decrease in escrow receivables</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInDepositOtherAssets_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInDepositOtherAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Deposit Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDepositOtherAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInDepositOtherAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInDepositOtherAssets" xlink:to="lab_us-gaap_IncreaseDecreaseInDepositOtherAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_AccretionOfOriginalIssueDiscounts_019ff179-4e75-7666-ad7d-e5b1bcf8b668_terseLabel_en-US" xlink:label="lab_cswc_AccretionOfOriginalIssueDiscounts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Payment of accreted original issue discounts</link:label>
    <link:label id="lab_cswc_AccretionOfOriginalIssueDiscounts_label_en-US" xlink:label="lab_cswc_AccretionOfOriginalIssueDiscounts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accretion Of Original Issue Discounts</link:label>
    <link:label id="lab_cswc_AccretionOfOriginalIssueDiscounts_documentation_en-US" xlink:label="lab_cswc_AccretionOfOriginalIssueDiscounts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Accretion Of Original Issue Discounts</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_AccretionOfOriginalIssueDiscounts" xlink:href="cswc-20260930.xsd#cswc_AccretionOfOriginalIssueDiscounts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_AccretionOfOriginalIssueDiscounts" xlink:to="lab_cswc_AccretionOfOriginalIssueDiscounts" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SouthwestRegionMember_019ff179-4f1a-70e1-8b5c-0b35c4e33e8d_terseLabel_en-US" xlink:label="lab_us-gaap_SouthwestRegionMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">West</link:label>
    <link:label id="lab_us-gaap_SouthwestRegionMember_label_en-US" xlink:label="lab_us-gaap_SouthwestRegionMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">US Southwest Region [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SouthwestRegionMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SouthwestRegionMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SouthwestRegionMember" xlink:to="lab_us-gaap_SouthwestRegionMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_019ff179-4f9d-7c4d-96c0-ade59a51e305_verboseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Fixed interest rate (in percent)</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_019ff179-4f9d-785c-8144-a8262f31ed54_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fixed Interest Rate</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Interest Rate, Stated Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:to="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockholdersEquity_019ff179-4f1a-7759-a763-60a4499019b4_totalLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total net assets</link:label>
    <link:label id="lab_us-gaap_StockholdersEquity_019ff179-4f1a-7589-b434-4488f624677a_periodStartLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance</link:label>
    <link:label id="lab_us-gaap_StockholdersEquity_019ff179-4f1a-7d64-be5a-9c9c93b1308c_periodEndLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance</link:label>
    <link:label id="lab_us-gaap_StockholdersEquity_label_en-US" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity, Attributable to Parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquity" xlink:to="lab_us-gaap_StockholdersEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_FinancialCommitmentYearThreeMember_019ff179-4f1a-763a-94b1-a1e567a2f5f3_terseLabel_en-US" xlink:label="lab_cswc_FinancialCommitmentYearThreeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2030</link:label>
    <link:label id="lab_cswc_FinancialCommitmentYearThreeMember_label_en-US" xlink:label="lab_cswc_FinancialCommitmentYearThreeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Commitment Year Three [Member]</link:label>
    <link:label id="lab_cswc_FinancialCommitmentYearThreeMember_documentation_en-US" xlink:label="lab_cswc_FinancialCommitmentYearThreeMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial Commitment Year Three</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_FinancialCommitmentYearThreeMember" xlink:href="cswc-20260930.xsd#cswc_FinancialCommitmentYearThreeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_FinancialCommitmentYearThreeMember" xlink:to="lab_cswc_FinancialCommitmentYearThreeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_WriteOffOfDeferredDebtIssuanceCost_019ff179-4e75-703b-9488-9a36812c990b_terseLabel_en-US" xlink:label="lab_us-gaap_WriteOffOfDeferredDebtIssuanceCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Realized loss on disposal of fixed assets</link:label>
    <link:label id="lab_us-gaap_WriteOffOfDeferredDebtIssuanceCost_label_en-US" xlink:label="lab_us-gaap_WriteOffOfDeferredDebtIssuanceCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Debt Issuance Cost, Writeoff</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WriteOffOfDeferredDebtIssuanceCost" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WriteOffOfDeferredDebtIssuanceCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WriteOffOfDeferredDebtIssuanceCost" xlink:to="lab_us-gaap_WriteOffOfDeferredDebtIssuanceCost" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherTaxExpenseBenefit_019ff179-4e75-732e-9c9a-71facf4817f5_terseLabel_en-US" xlink:label="lab_us-gaap_OtherTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_us-gaap_OtherTaxExpenseBenefit_label_en-US" xlink:label="lab_us-gaap_OtherTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Tax Expense (Benefit)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherTaxExpenseBenefit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherTaxExpenseBenefit" xlink:to="lab_us-gaap_OtherTaxExpenseBenefit" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_September2031NotesMember_01a134f4-0490-7574-b15b-7f9b3937c1d4_terseLabel_en-US" xlink:label="lab_cswc_September2031NotesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">September 2031 Notes</link:label>
    <link:label id="lab_cswc_September2031NotesMember_label_en-US" xlink:label="lab_cswc_September2031NotesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">September 2031 Notes [Member]</link:label>
    <link:label id="lab_cswc_September2031NotesMember_documentation_en-US" xlink:label="lab_cswc_September2031NotesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">September 2031 Notes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_September2031NotesMember" xlink:href="cswc-20260930.xsd#cswc_September2031NotesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_September2031NotesMember" xlink:to="lab_cswc_September2031NotesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodPerDirector_019ff179-4e75-7f64-9aaf-ceafe48ad1ec_terseLabel_en-US" xlink:label="lab_cswc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodPerDirector" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Grant market value</link:label>
    <link:label id="lab_cswc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodPerDirector_label_en-US" xlink:label="lab_cswc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodPerDirector" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Per Director</link:label>
    <link:label id="lab_cswc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodPerDirector_documentation_en-US" xlink:label="lab_cswc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodPerDirector" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Per Director</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodPerDirector" xlink:href="cswc-20260930.xsd#cswc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodPerDirector"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodPerDirector" xlink:to="lab_cswc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodPerDirector" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AssetsAbstract_019ff179-4e75-77a7-b07f-92173b88e7b0_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets</link:label>
    <link:label id="lab_us-gaap_AssetsAbstract_label_en-US" xlink:label="lab_us-gaap_AssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsAbstract" xlink:to="lab_us-gaap_AssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_MeasurementInputEbitdaMultipleMember_019ff179-4f1b-7298-ac47-b2f301785b90_terseLabel_en-US" xlink:label="lab_us-gaap_MeasurementInputEbitdaMultipleMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">EBITDA Multiple</link:label>
    <link:label id="lab_us-gaap_MeasurementInputEbitdaMultipleMember_label_en-US" xlink:label="lab_us-gaap_MeasurementInputEbitdaMultipleMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measurement Input, EBITDA Multiple [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputEbitdaMultipleMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputEbitdaMultipleMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MeasurementInputEbitdaMultipleMember" xlink:to="lab_us-gaap_MeasurementInputEbitdaMultipleMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_KMSLLCMember_019ff179-4e75-7d35-b6fa-5f1c040aef57_terseLabel_en-US" xlink:label="lab_cswc_KMSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">KMS, LLC</link:label>
    <link:label id="lab_cswc_KMSLLCMember_label_en-US" xlink:label="lab_cswc_KMSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">KMS, LLC [Member]</link:label>
    <link:label id="lab_cswc_KMSLLCMember_documentation_en-US" xlink:label="lab_cswc_KMSLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">KMS, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_KMSLLCMember" xlink:href="cswc-20260930.xsd#cswc_KMSLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_KMSLLCMember" xlink:to="lab_cswc_KMSLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ProfessionalFees_019ff179-4e74-7b86-a1a1-723665ebbbb9_terseLabel_en-US" xlink:label="lab_us-gaap_ProfessionalFees" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Professional fees</link:label>
    <link:label id="lab_us-gaap_ProfessionalFees_label_en-US" xlink:label="lab_us-gaap_ProfessionalFees" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Professional Fees</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfessionalFees" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfessionalFees"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProfessionalFees" xlink:to="lab_us-gaap_ProfessionalFees" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_InsiderTradingPoliciesProcLineItems_label_en-US" xlink:label="lab_ecd_InsiderTradingPoliciesProcLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Insider Trading Policies and Procedures [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_InsiderTradingPoliciesProcLineItems" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_InsiderTradingPoliciesProcLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_InsiderTradingPoliciesProcLineItems" xlink:to="lab_ecd_InsiderTradingPoliciesProcLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentIssuerAffiliationDomain_019ff179-4f1a-7db1-a997-ea4c109548b8_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentIssuerAffiliationDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment, Issuer Affiliation [Domain]</link:label>
    <link:label id="lab_us-gaap_InvestmentIssuerAffiliationDomain_label_en-US" xlink:label="lab_us-gaap_InvestmentIssuerAffiliationDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Issuer Affiliation [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIssuerAffiliationDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIssuerAffiliationDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationDomain" xlink:to="lab_us-gaap_InvestmentIssuerAffiliationDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_019ff179-4f9d-7f15-832b-5331b886786c_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred income taxes</link:label>
    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Income Tax Expense (Benefit)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:to="lab_us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SaleOfStockGrossSalesPriceCommissionPercentage_019ff179-4f9d-7135-9cd7-5a531ac9c771_terseLabel_en-US" xlink:label="lab_cswc_SaleOfStockGrossSalesPriceCommissionPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross sales commission percentage</link:label>
    <link:label id="lab_cswc_SaleOfStockGrossSalesPriceCommissionPercentage_label_en-US" xlink:label="lab_cswc_SaleOfStockGrossSalesPriceCommissionPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale Of Stock, Gross Sales Price Commission Percentage</link:label>
    <link:label id="lab_cswc_SaleOfStockGrossSalesPriceCommissionPercentage_documentation_en-US" xlink:label="lab_cswc_SaleOfStockGrossSalesPriceCommissionPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sale Of Stock, Gross Sales Price Commission Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SaleOfStockGrossSalesPriceCommissionPercentage" xlink:href="cswc-20260930.xsd#cswc_SaleOfStockGrossSalesPriceCommissionPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SaleOfStockGrossSalesPriceCommissionPercentage" xlink:to="lab_cswc_SaleOfStockGrossSalesPriceCommissionPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_MAMMOTHBORROWCOINCMember_019ff179-4e75-7686-9b24-33d35481c1ed_terseLabel_en-US" xlink:label="lab_cswc_MAMMOTHBORROWCOINCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">MAMMOTH BORROWCO, INC.</link:label>
    <link:label id="lab_cswc_MAMMOTHBORROWCOINCMember_label_en-US" xlink:label="lab_cswc_MAMMOTHBORROWCOINCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">MAMMOTH BORROWCO, INC. [Member]</link:label>
    <link:label id="lab_cswc_MAMMOTHBORROWCOINCMember_documentation_en-US" xlink:label="lab_cswc_MAMMOTHBORROWCOINCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">MAMMOTH BORROWCO, INC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_MAMMOTHBORROWCOINCMember" xlink:href="cswc-20260930.xsd#cswc_MAMMOTHBORROWCOINCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_MAMMOTHBORROWCOINCMember" xlink:to="lab_cswc_MAMMOTHBORROWCOINCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCEquityInvestmentsMember_019ff179-4f1a-7370-ba91-09252d531362_terseLabel_en-US" xlink:label="lab_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">APPLE ROOFING ADMINISTRATIVE SERVICES, LLC (fka ROOF OPCO, LLC)</link:label>
    <link:label id="lab_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCEquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">APPLE ROOFING ADMINISTRATIVE SERVICES, LLC (fka ROOF OPCO, LLC), Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCEquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">APPLE ROOFING ADMINISTRATIVE SERVICES, LLC (fka ROOF OPCO, LLC), Equity Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCEquityInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCEquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCEquityInvestmentsMember" xlink:to="lab_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCEquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_019ff179-4f1a-7337-9245-b51748498a61_terseLabel_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Anti-dilutive securities</link:label>
    <link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_label_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:to="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NumberOfOperatingSegments_019ff179-4e74-7beb-b931-8c4344138e88_terseLabel_en-US" xlink:label="lab_us-gaap_NumberOfOperatingSegments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of operating segments</link:label>
    <link:label id="lab_us-gaap_NumberOfOperatingSegments_label_en-US" xlink:label="lab_us-gaap_NumberOfOperatingSegments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of Operating Segments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfOperatingSegments" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NumberOfOperatingSegments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NumberOfOperatingSegments" xlink:to="lab_us-gaap_NumberOfOperatingSegments" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCentralIndexKey_019ff179-4f9d-79b3-ab0f-acbf226cc4da_terseLabel_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey" xlink:to="lab_dei_EntityCentralIndexKey" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_FirstLienLoansLastOutMember_019ff179-4f9d-7856-a163-a46b182393b2_terseLabel_en-US" xlink:label="lab_cswc_FirstLienLoansLastOutMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">First Lien Loans, Last Out</link:label>
    <link:label id="lab_cswc_FirstLienLoansLastOutMember_label_en-US" xlink:label="lab_cswc_FirstLienLoansLastOutMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">First Lien Loans, Last Out [Member]</link:label>
    <link:label id="lab_cswc_FirstLienLoansLastOutMember_documentation_en-US" xlink:label="lab_cswc_FirstLienLoansLastOutMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">First Lien Loans, Last Out</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_FirstLienLoansLastOutMember" xlink:href="cswc-20260930.xsd#cswc_FirstLienLoansLastOutMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_FirstLienLoansLastOutMember" xlink:to="lab_cswc_FirstLienLoansLastOutMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquityAbstract_label_en-US" xlink:label="lab_us-gaap_EquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityAbstract" xlink:to="lab_us-gaap_EquityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember_terseLabel_en-US" xlink:label="lab_ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year</link:label>
    <link:label id="lab_ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember_label_en-US" xlink:label="lab_ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember" xlink:to="lab_ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SecondLienLoansSplitLienTermLoansMember_019ff179-4f1a-7bd6-8072-8fc8be279036_terseLabel_en-US" xlink:label="lab_cswc_SecondLienLoansSplitLienTermLoansMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Second Lien Loans, Split Lien Term Loans</link:label>
    <link:label id="lab_cswc_SecondLienLoansSplitLienTermLoansMember_label_en-US" xlink:label="lab_cswc_SecondLienLoansSplitLienTermLoansMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Second Lien Loans, Split Lien Term Loans [Member]</link:label>
    <link:label id="lab_cswc_SecondLienLoansSplitLienTermLoansMember_documentation_en-US" xlink:label="lab_cswc_SecondLienLoansSplitLienTermLoansMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Second Lien Loans, Split Lien Term Loans</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SecondLienLoansSplitLienTermLoansMember" xlink:href="cswc-20260930.xsd#cswc_SecondLienLoansSplitLienTermLoansMember"/>
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    <link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_019ff179-4f9d-7175-8897-a356c1474e38_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2027</link:label>
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    <link:label id="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_label_en-US" xlink:label="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Hierarchy and NAV [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
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    <link:label id="lab_us-gaap_ScheduleOfInvestmentsLineItems_label_en-US" xlink:label="lab_us-gaap_ScheduleOfInvestmentsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Investments [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfInvestmentsLineItems"/>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRecognitionDividends" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRecognitionDividends"/>
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    <link:label id="lab_us-gaap_InvestmentCompanyIssuanceOfSharesPerShare_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyIssuanceOfSharesPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Share Issuance, Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyIssuanceOfSharesPerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyIssuanceOfSharesPerShare"/>
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    <link:label id="lab_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_019ff179-4e75-7d27-a836-c31cddd4f314_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Significant Components of Income Tax Provision</link:label>
    <link:label id="lab_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock"/>
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    <link:label id="lab_us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_019ff179-4f1a-7f43-99d3-fbbc8529f443_terseLabel_en-US" xlink:label="lab_us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net unrealized (depreciation) appreciation on investments</link:label>
    <link:label id="lab_us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_label_en-US" xlink:label="lab_us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt and Equity Securities, Unrealized Gain (Loss)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss"/>
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    <link:label id="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Basis Spread on Variable Rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
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    <link:label id="lab_cswc_LashOpCoLLCMember_019ff179-4f1a-7f46-91e9-9eac7f5d5d9a_terseLabel_en-US" xlink:label="lab_cswc_LashOpCoLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">LASH OPCO, LLC</link:label>
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    <link:label id="lab_cswc_SaleOfStockWeightedAveragePricePerShare_label_en-US" xlink:label="lab_cswc_SaleOfStockWeightedAveragePricePerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale Of Stock, Weighted Average, Price Per Share</link:label>
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    <link:label id="lab_us-gaap_RestrictedStockMember_019ff179-4f9d-794e-ba5c-8c3006f09523_terseLabel_en-US" xlink:label="lab_us-gaap_RestrictedStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted Stock</link:label>
    <link:label id="lab_us-gaap_RestrictedStockMember_label_en-US" xlink:label="lab_us-gaap_RestrictedStockMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restricted Stock [Member]</link:label>
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    <link:label id="lab_ecd_AllIndividualsMember_terseLabel_en-US" xlink:label="lab_ecd_AllIndividualsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">All Individuals</link:label>
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    <link:label id="lab_us-gaap_InvestmentIssuerNameDomain_label_en-US" xlink:label="lab_us-gaap_InvestmentIssuerNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Issuer Name [Domain]</link:label>
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    <link:label id="lab_us-gaap_StatementLineItems_label_en-US" xlink:label="lab_us-gaap_StatementLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="lab_us-gaap_StatementLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_Assets_019ff179-4e75-7894-871c-10be058aeeb8_totalLabel_en-US" xlink:label="lab_us-gaap_Assets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:label id="lab_us-gaap_Assets_019ff179-4e75-7716-89f6-f19911e85ea0_terseLabel_en-US" xlink:label="lab_us-gaap_Assets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:label id="lab_us-gaap_Assets_label_en-US" xlink:label="lab_us-gaap_Assets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Assets" xlink:to="lab_us-gaap_Assets" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_THEGOBELGROUPLLCEquitySecuritiesMember_019ff179-4e75-76be-a151-ec10250a22ab_terseLabel_en-US" xlink:label="lab_cswc_THEGOBELGROUPLLCEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">THE GOBEL GROUP, LLC</link:label>
    <link:label id="lab_cswc_THEGOBELGROUPLLCEquitySecuritiesMember_label_en-US" xlink:label="lab_cswc_THEGOBELGROUPLLCEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">THE GOBEL GROUP, LLC, Equity Securities [Member]</link:label>
    <link:label id="lab_cswc_THEGOBELGROUPLLCEquitySecuritiesMember_documentation_en-US" xlink:label="lab_cswc_THEGOBELGROUPLLCEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">THE GOBEL GROUP, LLC, Equity Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_THEGOBELGROUPLLCEquitySecuritiesMember" xlink:href="cswc-20260930.xsd#cswc_THEGOBELGROUPLLCEquitySecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_THEGOBELGROUPLLCEquitySecuritiesMember" xlink:to="lab_cswc_THEGOBELGROUPLLCEquitySecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestExpenseOperating_019ff179-4f1a-7d28-aa3c-6b65c2ea0bea_terseLabel_en-US" xlink:label="lab_us-gaap_InterestExpenseOperating" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest</link:label>
    <link:label id="lab_us-gaap_InterestExpenseOperating_label_en-US" xlink:label="lab_us-gaap_InterestExpenseOperating" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Expense, Operating</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseOperating" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseOperating"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpenseOperating" xlink:to="lab_us-gaap_InterestExpenseOperating" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_019ff179-4f1a-70ca-9c82-27a4527b6dba_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Deferred Tax Assets and Liabilities</link:label>
    <link:label id="lab_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Deferred Tax Assets and Liabilities [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:to="lab_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ConvertibleDebtMember_019ff179-4f9d-7655-85d6-368d27a2a529_terseLabel_en-US" xlink:label="lab_us-gaap_ConvertibleDebtMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Convertible Debt</link:label>
    <link:label id="lab_us-gaap_ConvertibleDebtMember_label_en-US" xlink:label="lab_us-gaap_ConvertibleDebtMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Convertible Debt [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConvertibleDebtMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConvertibleDebtMember" xlink:to="lab_us-gaap_ConvertibleDebtMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquitySecuritiesByIndustryAxis_019ff179-4f1a-7cc2-a8bc-8614a5e4c302_terseLabel_en-US" xlink:label="lab_us-gaap_EquitySecuritiesByIndustryAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Industry Sector [Axis]</link:label>
    <link:label id="lab_us-gaap_EquitySecuritiesByIndustryAxis_label_en-US" xlink:label="lab_us-gaap_EquitySecuritiesByIndustryAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Industry Sector [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesByIndustryAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquitySecuritiesByIndustryAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquitySecuritiesByIndustryAxis" xlink:to="lab_us-gaap_EquitySecuritiesByIndustryAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_FinancialCommitmentYearFourMember_019ff179-4e75-722d-b4d7-f7a4d88aa562_terseLabel_en-US" xlink:label="lab_cswc_FinancialCommitmentYearFourMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2031</link:label>
    <link:label id="lab_cswc_FinancialCommitmentYearFourMember_label_en-US" xlink:label="lab_cswc_FinancialCommitmentYearFourMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Commitment Year Four [Member]</link:label>
    <link:label id="lab_cswc_FinancialCommitmentYearFourMember_documentation_en-US" xlink:label="lab_cswc_FinancialCommitmentYearFourMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial Commitment Year Four</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_FinancialCommitmentYearFourMember" xlink:href="cswc-20260930.xsd#cswc_FinancialCommitmentYearFourMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_FinancialCommitmentYearFourMember" xlink:to="lab_cswc_FinancialCommitmentYearFourMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract_label_en-US" xlink:label="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments in and Advances to Affiliates [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract" xlink:to="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_O2027M6TaxYearDividendsMember_019ff179-4f9d-7755-8b9b-eef2e9c58e60_terseLabel_en-US" xlink:label="lab_cswc_O2027M6TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">O 2027 M6 Tax Year Dividends</link:label>
    <link:label id="lab_cswc_O2027M6TaxYearDividendsMember_label_en-US" xlink:label="lab_cswc_O2027M6TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">O 2027 M6 Tax Year Dividends [Member]</link:label>
    <link:label id="lab_cswc_O2027M6TaxYearDividendsMember_documentation_en-US" xlink:label="lab_cswc_O2027M6TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">O 2027 M6 Tax Year Dividends</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_O2027M6TaxYearDividendsMember" xlink:href="cswc-20260930.xsd#cswc_O2027M6TaxYearDividendsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_O2027M6TaxYearDividendsMember" xlink:to="lab_cswc_O2027M6TaxYearDividendsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_019ff179-4e74-76de-94db-f9c3db879fae_terseLabel_en-US" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">STOCK BASED COMPENSATION PLANS</link:label>
    <link:label id="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_label_en-US" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Payment Arrangement [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:to="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_AfterApril202024Member_019ff179-4f9d-7825-9c4c-bf1f2cbdf395_terseLabel_en-US" xlink:label="lab_cswc_AfterApril202024Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">After April 20 2024</link:label>
    <link:label id="lab_cswc_AfterApril202024Member_label_en-US" xlink:label="lab_cswc_AfterApril202024Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">After April 20 2024 [Member]</link:label>
    <link:label id="lab_cswc_AfterApril202024Member_documentation_en-US" xlink:label="lab_cswc_AfterApril202024Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">After April 20 2024</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_AfterApril202024Member" xlink:href="cswc-20260930.xsd#cswc_AfterApril202024Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_AfterApril202024Member" xlink:to="lab_cswc_AfterApril202024Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_PeoMember_terseLabel_en-US" xlink:label="lab_ecd_PeoMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">PEO</link:label>
    <link:label id="lab_ecd_PeoMember_label_en-US" xlink:label="lab_ecd_PeoMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">PEO [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeoMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PeoMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_PeoMember" xlink:to="lab_ecd_PeoMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_019ff179-4e75-791b-af22-b337fb00b682_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2029</link:label>
    <link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_label_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-Term Debt, Maturity, Year Two</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:to="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SoftwareMember_019ff179-4f9d-7043-a82c-ab2ee34fc528_terseLabel_en-US" xlink:label="lab_cswc_SoftwareMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Software</link:label>
    <link:label id="lab_cswc_SoftwareMember_label_en-US" xlink:label="lab_cswc_SoftwareMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Software [Member]</link:label>
    <link:label id="lab_cswc_SoftwareMember_documentation_en-US" xlink:label="lab_cswc_SoftwareMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Software</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SoftwareMember" xlink:href="cswc-20260930.xsd#cswc_SoftwareMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SoftwareMember" xlink:to="lab_cswc_SoftwareMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_CUMBRIACAPITALMSOLLCMember_019ff179-4f1a-74c2-8be5-04149b402599_terseLabel_en-US" xlink:label="lab_cswc_CUMBRIACAPITALMSOLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CUMBRIA CAPITAL MSO, LLC</link:label>
    <link:label id="lab_cswc_CUMBRIACAPITALMSOLLCMember_label_en-US" xlink:label="lab_cswc_CUMBRIACAPITALMSOLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CUMBRIA CAPITAL MSO, LLC [Member]</link:label>
    <link:label id="lab_cswc_CUMBRIACAPITALMSOLLCMember_documentation_en-US" xlink:label="lab_cswc_CUMBRIACAPITALMSOLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">CUMBRIA CAPITAL MSO, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CUMBRIACAPITALMSOLLCMember" xlink:href="cswc-20260930.xsd#cswc_CUMBRIACAPITALMSOLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_CUMBRIACAPITALMSOLLCMember" xlink:to="lab_cswc_CUMBRIACAPITALMSOLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_S2027Q2DividendsMember_019ff179-4f9d-76fd-b3ac-6dff609d1703_terseLabel_en-US" xlink:label="lab_cswc_S2027Q2DividendsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">S 2027 Q2 Dividends</link:label>
    <link:label id="lab_cswc_S2027Q2DividendsMember_label_en-US" xlink:label="lab_cswc_S2027Q2DividendsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">S 2027 Q2 Dividends [Member]</link:label>
    <link:label id="lab_cswc_S2027Q2DividendsMember_documentation_en-US" xlink:label="lab_cswc_S2027Q2DividendsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S 2027 Q2 Dividends</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_S2027Q2DividendsMember" xlink:href="cswc-20260930.xsd#cswc_S2027Q2DividendsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_S2027Q2DividendsMember" xlink:to="lab_cswc_S2027Q2DividendsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_LongTermDebtScheduledPoolNumber_01a164e5-84a8-7b0d-b03f-9ddc0e571dfe_terseLabel_en-US" xlink:label="lab_cswc_LongTermDebtScheduledPoolNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Scheduled pooling dates</link:label>
    <link:label id="lab_cswc_LongTermDebtScheduledPoolNumber_label_en-US" xlink:label="lab_cswc_LongTermDebtScheduledPoolNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-Term Debt, Scheduled Pool, Number</link:label>
    <link:label id="lab_cswc_LongTermDebtScheduledPoolNumber_documentation_en-US" xlink:label="lab_cswc_LongTermDebtScheduledPoolNumber" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Long-Term Debt, Scheduled Pool, Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_LongTermDebtScheduledPoolNumber" xlink:href="cswc-20260930.xsd#cswc_LongTermDebtScheduledPoolNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_LongTermDebtScheduledPoolNumber" xlink:to="lab_cswc_LongTermDebtScheduledPoolNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt_terseLabel_en-US" xlink:label="lab_ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Forgone Recovery due to Violation of Home Country Law, Amount</link:label>
    <link:label id="lab_ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt_label_en-US" xlink:label="lab_ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Forgone Recovery due to Violation of Home Country Law, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt" xlink:to="lab_ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DYNAMICCOMMUNITIESLLCMember_019ff179-4f9d-7ec3-b7bf-6c513d031790_terseLabel_en-US" xlink:label="lab_cswc_DYNAMICCOMMUNITIESLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">DYNAMIC COMMUNITIES, LLC</link:label>
    <link:label id="lab_cswc_DYNAMICCOMMUNITIESLLCMember_label_en-US" xlink:label="lab_cswc_DYNAMICCOMMUNITIESLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">DYNAMIC COMMUNITIES, LLC [Member]</link:label>
    <link:label id="lab_cswc_DYNAMICCOMMUNITIESLLCMember_documentation_en-US" xlink:label="lab_cswc_DYNAMICCOMMUNITIESLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">DYNAMIC COMMUNITIES, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DYNAMICCOMMUNITIESLLCMember" xlink:href="cswc-20260930.xsd#cswc_DYNAMICCOMMUNITIESLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DYNAMICCOMMUNITIESLLCMember" xlink:to="lab_cswc_DYNAMICCOMMUNITIESLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ACCELERATIONLLCEquityInvestmentsMember_019ff179-4f1a-7476-ac76-bb09d22c065e_terseLabel_en-US" xlink:label="lab_cswc_ACCELERATIONLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ACCELERATION, LLC</link:label>
    <link:label id="lab_cswc_ACCELERATIONLLCEquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_ACCELERATIONLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ACCELERATION, LLC, Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_ACCELERATIONLLCEquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_ACCELERATIONLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ACCELERATION, LLC, Equity Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ACCELERATIONLLCEquityInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_ACCELERATIONLLCEquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ACCELERATIONLLCEquityInvestmentsMember" xlink:to="lab_cswc_ACCELERATIONLLCEquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_MUSIKERDISCOVERYPROGRAMSINC.Member_019ff179-4f1a-7ed5-9d36-70788982d96e_terseLabel_en-US" xlink:label="lab_cswc_MUSIKERDISCOVERYPROGRAMSINC.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">MUSIKER DISCOVERY PROGRAMS, INC.</link:label>
    <link:label id="lab_cswc_MUSIKERDISCOVERYPROGRAMSINC.Member_label_en-US" xlink:label="lab_cswc_MUSIKERDISCOVERYPROGRAMSINC.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">MUSIKER DISCOVERY PROGRAMS, INC. [Member]</link:label>
    <link:label id="lab_cswc_MUSIKERDISCOVERYPROGRAMSINC.Member_documentation_en-US" xlink:label="lab_cswc_MUSIKERDISCOVERYPROGRAMSINC.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">MUSIKER DISCOVERY PROGRAMS, INC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_MUSIKERDISCOVERYPROGRAMSINC.Member" xlink:href="cswc-20260930.xsd#cswc_MUSIKERDISCOVERYPROGRAMSINC.Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_MUSIKERDISCOVERYPROGRAMSINC.Member" xlink:to="lab_cswc_MUSIKERDISCOVERYPROGRAMSINC.Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RetainedEarningsMember_019ff179-4e75-7f5f-966c-000c5deae60a_verboseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total Distributable Earnings (Loss)</link:label>
    <link:label id="lab_us-gaap_RetainedEarningsMember_label_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retained Earnings [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetainedEarningsMember" xlink:to="lab_us-gaap_RetainedEarningsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RevolvingCreditFacilityMember_019ff179-4f9d-704a-9f4a-08fa51e730a0_terseLabel_en-US" xlink:label="lab_us-gaap_RevolvingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Corporate Credit Facility</link:label>
    <link:label id="lab_us-gaap_RevolvingCreditFacilityMember_019ff179-4f9d-7451-bce2-7738ac10764e_verboseLabel_en-US" xlink:label="lab_us-gaap_RevolvingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Revolving Loans</link:label>
    <link:label id="lab_us-gaap_RevolvingCreditFacilityMember_label_en-US" xlink:label="lab_us-gaap_RevolvingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revolving Credit Facility [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevolvingCreditFacilityMember" xlink:to="lab_us-gaap_RevolvingCreditFacilityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueMeasurementPolicyPolicyTextBlock_019ff179-4e75-7b03-a54b-5d39a402b454_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value Measurements</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementPolicyPolicyTextBlock_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Measurement, Policy [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementPolicyPolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:to="lab_us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare_019ff179-4f9d-7c31-be7b-2cc41235ccb8_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total increase from investment operations (in usd per share)</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Investment Income (Loss) from Operations, Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare" xlink:to="lab_us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_019ff179-4f1b-7179-9dfd-d00f88179d48_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common stock, outstanding (in shares)</link:label>
    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_019ff179-4f1b-77d0-9b91-96801a22da66_periodStartLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance (in shares)</link:label>
    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_019ff179-4f1b-7b1f-8a15-b869d05512c2_periodEndLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance (in shares)</link:label>
    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_019ff179-4f1b-7746-9419-b7954965ab0f_verboseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Common shares outstanding at end of period (in shares)</link:label>
    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Shares, Outstanding</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesOutstanding" xlink:to="lab_us-gaap_CommonStockSharesOutstanding" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AwardTmgDiscLineItems_label_en-US" xlink:label="lab_ecd_AwardTmgDiscLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Timing Disclosures [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgDiscLineItems" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardTmgDiscLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="lab_ecd_AwardTmgDiscLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EarningsPerShareDiluted_019ff179-4f9d-7957-b3e3-e5f6e1c2cd8d_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareDiluted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net increase in net assets from operations - diluted (in usd per share)</link:label>
    <link:label id="lab_us-gaap_EarningsPerShareDiluted_019ff179-4f9d-7961-b4ae-24955f871c14_verboseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareDiluted" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Diluted earnings per common share (in usd per share)</link:label>
    <link:label id="lab_us-gaap_EarningsPerShareDiluted_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareDiluted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share, Diluted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareDiluted" xlink:to="lab_us-gaap_EarningsPerShareDiluted" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_GAINSINTERMEDIATELLCMember_019ff179-4f9d-7d55-8281-14359342cb08_terseLabel_en-US" xlink:label="lab_cswc_GAINSINTERMEDIATELLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">GAINS INTERMEDIATE, LLC</link:label>
    <link:label id="lab_cswc_GAINSINTERMEDIATELLCMember_label_en-US" xlink:label="lab_cswc_GAINSINTERMEDIATELLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">GAINS INTERMEDIATE, LLC [Member]</link:label>
    <link:label id="lab_cswc_GAINSINTERMEDIATELLCMember_documentation_en-US" xlink:label="lab_cswc_GAINSINTERMEDIATELLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">GAINS INTERMEDIATE, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_GAINSINTERMEDIATELLCMember" xlink:href="cswc-20260930.xsd#cswc_GAINSINTERMEDIATELLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_GAINSINTERMEDIATELLCMember" xlink:to="lab_cswc_GAINSINTERMEDIATELLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2036PoolMember_019ff179-4f1a-7769-9c23-61a23d4b3028_terseLabel_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2036PoolMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debentures due March 2036</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2036PoolMember_label_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2036PoolMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures Due, March 2036 Pool [Member]</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2036PoolMember_documentation_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2036PoolMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures Due, March 2036 Pool</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SmallBusinessAdministrationDebenturesDueMarch2036PoolMember" xlink:href="cswc-20260930.xsd#cswc_SmallBusinessAdministrationDebenturesDueMarch2036PoolMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SmallBusinessAdministrationDebenturesDueMarch2036PoolMember" xlink:to="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2036PoolMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_O2026M1TaxYearDividendsMember_019ff179-4e75-784b-8718-3a0a205f3c91_terseLabel_en-US" xlink:label="lab_cswc_O2026M1TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">O 2026 M1 Tax Year Dividends</link:label>
    <link:label id="lab_cswc_O2026M1TaxYearDividendsMember_label_en-US" xlink:label="lab_cswc_O2026M1TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">O 2026 M1 Tax Year Dividends [Member]</link:label>
    <link:label id="lab_cswc_O2026M1TaxYearDividendsMember_documentation_en-US" xlink:label="lab_cswc_O2026M1TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">O 2026 M1 Tax Year Dividends</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_O2026M1TaxYearDividendsMember" xlink:href="cswc-20260930.xsd#cswc_O2026M1TaxYearDividendsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_O2026M1TaxYearDividendsMember" xlink:to="lab_cswc_O2026M1TaxYearDividendsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_JointVentureEquityMember_019ff179-4f9d-717c-bf1c-bf6ee58eab3a_terseLabel_en-US" xlink:label="lab_cswc_JointVentureEquityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">JV equity</link:label>
    <link:label id="lab_cswc_JointVentureEquityMember_label_en-US" xlink:label="lab_cswc_JointVentureEquityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Joint Venture Equity [Member]</link:label>
    <link:label id="lab_cswc_JointVentureEquityMember_documentation_en-US" xlink:label="lab_cswc_JointVentureEquityMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Joint Venture Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_JointVentureEquityMember" xlink:href="cswc-20260930.xsd#cswc_JointVentureEquityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_JointVentureEquityMember" xlink:to="lab_cswc_JointVentureEquityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UnrealizedGainLossOnInvestments_019ff179-4f9d-7c9e-a9b3-e21cc16c6a95_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_UnrealizedGainLossOnInvestments" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Net unrealized depreciation on investments before income tax</link:label>
    <link:label id="lab_us-gaap_UnrealizedGainLossOnInvestments_label_en-US" xlink:label="lab_us-gaap_UnrealizedGainLossOnInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unrealized Gain (Loss) on Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrealizedGainLossOnInvestments" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnrealizedGainLossOnInvestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnrealizedGainLossOnInvestments" xlink:to="lab_us-gaap_UnrealizedGainLossOnInvestments" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_RegulatoryCapital_019ff179-4e74-7e3d-a9b6-7ad63dec1a14_terseLabel_en-US" xlink:label="lab_cswc_RegulatoryCapital" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Regulatory capital</link:label>
    <link:label id="lab_cswc_RegulatoryCapital_label_en-US" xlink:label="lab_cswc_RegulatoryCapital" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Regulatory Capital</link:label>
    <link:label id="lab_cswc_RegulatoryCapital_documentation_en-US" xlink:label="lab_cswc_RegulatoryCapital" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Regulatory Capital</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_RegulatoryCapital" xlink:href="cswc-20260930.xsd#cswc_RegulatoryCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_RegulatoryCapital" xlink:to="lab_cswc_RegulatoryCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestIncomeOperatingPaidInCash_019ff179-4f1a-739d-bd0b-65f3c10fb413_terseLabel_en-US" xlink:label="lab_us-gaap_InterestIncomeOperatingPaidInCash" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest income</link:label>
    <link:label id="lab_us-gaap_InterestIncomeOperatingPaidInCash_label_en-US" xlink:label="lab_us-gaap_InterestIncomeOperatingPaidInCash" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Income, Operating, Paid in Cash</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeOperatingPaidInCash" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeOperatingPaidInCash"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestIncomeOperatingPaidInCash" xlink:to="lab_us-gaap_InterestIncomeOperatingPaidInCash" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ProceedsFromLongTermLinesOfCredit_019ff179-4f1a-7daa-b061-77c993b02a38_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromLongTermLinesOfCredit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Borrowings under Credit Facilities</link:label>
    <link:label id="lab_us-gaap_ProceedsFromLongTermLinesOfCredit_label_en-US" xlink:label="lab_us-gaap_ProceedsFromLongTermLinesOfCredit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Long-Term Lines of Credit</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLongTermLinesOfCredit" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromLongTermLinesOfCredit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromLongTermLinesOfCredit" xlink:to="lab_us-gaap_ProceedsFromLongTermLinesOfCredit" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_GRAMMATECHINCEquityInvestmentsMember_019ff179-4f9d-7ccc-b4a6-aa3ad7df639b_terseLabel_en-US" xlink:label="lab_cswc_GRAMMATECHINCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">GRAMMATECH, INC.</link:label>
    <link:label id="lab_cswc_GRAMMATECHINCEquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_GRAMMATECHINCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">GRAMMATECH, INC, Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_GRAMMATECHINCEquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_GRAMMATECHINCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">GRAMMATECH, INC, Equity Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_GRAMMATECHINCEquityInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_GRAMMATECHINCEquityInvestmentsMember"/>
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    <link:label id="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_label_en-US" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Payment Arrangement [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentsInAndAdvancesToAffiliatesAtFairValueUnrealizedChangeInFairValue_019ff179-4f1a-7fff-a5c5-198c8855627a_terseLabel_en-US" xlink:label="lab_cswc_InvestmentsInAndAdvancesToAffiliatesAtFairValueUnrealizedChangeInFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amount of Unrealized Gain/(Loss)</link:label>
    <link:label id="lab_cswc_InvestmentsInAndAdvancesToAffiliatesAtFairValueUnrealizedChangeInFairValue_label_en-US" xlink:label="lab_cswc_InvestmentsInAndAdvancesToAffiliatesAtFairValueUnrealizedChangeInFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments In And Advances To Affiliates, At Fair Value, Unrealized Change In Fair Value</link:label>
    <link:label id="lab_cswc_InvestmentsInAndAdvancesToAffiliatesAtFairValueUnrealizedChangeInFairValue_documentation_en-US" xlink:label="lab_cswc_InvestmentsInAndAdvancesToAffiliatesAtFairValueUnrealizedChangeInFairValue" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investments In And Advances To Affiliates, At Fair Value, Unrealized Change In Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentsInAndAdvancesToAffiliatesAtFairValueUnrealizedChangeInFairValue" xlink:href="cswc-20260930.xsd#cswc_InvestmentsInAndAdvancesToAffiliatesAtFairValueUnrealizedChangeInFairValue"/>
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    <link:label id="lab_cswc_SpotlightARLLCMember_019ff179-4e75-7bc0-9cc4-423a25d5599d_terseLabel_en-US" xlink:label="lab_cswc_SpotlightARLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SPOTLIGHT AR, LLC</link:label>
    <link:label id="lab_cswc_SpotlightARLLCMember_label_en-US" xlink:label="lab_cswc_SpotlightARLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Spotlight AR, LLC [Member]</link:label>
    <link:label id="lab_cswc_SpotlightARLLCMember_documentation_en-US" xlink:label="lab_cswc_SpotlightARLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Spotlight AR, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SpotlightARLLCMember" xlink:href="cswc-20260930.xsd#cswc_SpotlightARLLCMember"/>
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    <link:label id="lab_cswc_NEWSKINNYMIXESLLCMember_019ff179-4e75-7296-b819-484bab9061e4_terseLabel_en-US" xlink:label="lab_cswc_NEWSKINNYMIXESLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">NEW SKINNY MIXES, LLC</link:label>
    <link:label id="lab_cswc_NEWSKINNYMIXESLLCMember_label_en-US" xlink:label="lab_cswc_NEWSKINNYMIXESLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">NEW SKINNY MIXES, LLC [Member]</link:label>
    <link:label id="lab_cswc_NEWSKINNYMIXESLLCMember_documentation_en-US" xlink:label="lab_cswc_NEWSKINNYMIXESLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">NEW SKINNY MIXES, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_NEWSKINNYMIXESLLCMember" xlink:href="cswc-20260930.xsd#cswc_NEWSKINNYMIXESLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_NEWSKINNYMIXESLLCMember" xlink:to="lab_cswc_NEWSKINNYMIXESLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyTotalReturnMarketValue_019ff179-4f1a-7445-b871-de2cb0fc2241_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyTotalReturnMarketValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total investment return</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyTotalReturnMarketValue_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyTotalReturnMarketValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Total Return, Market Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyTotalReturnMarketValue" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyTotalReturnMarketValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyTotalReturnMarketValue" xlink:to="lab_us-gaap_InvestmentCompanyTotalReturnMarketValue" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_EqtyAwrdsAdjFnTextBlock_terseLabel_en-US" xlink:label="lab_ecd_EqtyAwrdsAdjFnTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity Awards Adjustments, Footnote</link:label>
    <link:label id="lab_ecd_EqtyAwrdsAdjFnTextBlock_label_en-US" xlink:label="lab_ecd_EqtyAwrdsAdjFnTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Awards Adjustments, Footnote [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_EqtyAwrdsAdjFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_EqtyAwrdsAdjFnTextBlock"/>
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    <link:label id="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales_019ff179-4f9d-7dbe-ac21-45e617e7b65b_negatedLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Divestitures</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales" xlink:to="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyNonconsolidatedSubsidiarySummarizedFinancialInformationTableTextBlock_019ff179-4f1a-7dda-921c-68c220f6f324_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyNonconsolidatedSubsidiarySummarizedFinancialInformationTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Subsidiary Financial Information</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyNonconsolidatedSubsidiarySummarizedFinancialInformationTableTextBlock_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyNonconsolidatedSubsidiarySummarizedFinancialInformationTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Nonconsolidated Subsidiary, Summarized Financial Information [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyNonconsolidatedSubsidiarySummarizedFinancialInformationTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyNonconsolidatedSubsidiarySummarizedFinancialInformationTableTextBlock"/>
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    <link:label id="lab_us-gaap_InvestmentIssuerNameAxis_019ff179-4f1a-7ab1-b839-97e1efcb6a79_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentIssuerNameAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment, Issuer Name [Axis]</link:label>
    <link:label id="lab_us-gaap_InvestmentIssuerNameAxis_label_en-US" xlink:label="lab_us-gaap_InvestmentIssuerNameAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Issuer Name [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIssuerNameAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIssuerNameAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentIssuerNameAxis" xlink:to="lab_us-gaap_InvestmentIssuerNameAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyTaxBasisReconciliationInterestOnNonAccrualLoansIncreaseDecreaseInTaxableIncome_019ff179-4f9d-7d8f-b0b6-728d35f5cbc8_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyTaxBasisReconciliationInterestOnNonAccrualLoansIncreaseDecreaseInTaxableIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest on non-accrual loans</link:label>
    <link:label id="lab_cswc_InvestmentCompanyTaxBasisReconciliationInterestOnNonAccrualLoansIncreaseDecreaseInTaxableIncome_label_en-US" xlink:label="lab_cswc_InvestmentCompanyTaxBasisReconciliationInterestOnNonAccrualLoansIncreaseDecreaseInTaxableIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Tax Basis Reconciliation, Interest On Non-accrual Loans, Increase (Decrease) In Taxable Income</link:label>
    <link:label id="lab_cswc_InvestmentCompanyTaxBasisReconciliationInterestOnNonAccrualLoansIncreaseDecreaseInTaxableIncome_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyTaxBasisReconciliationInterestOnNonAccrualLoansIncreaseDecreaseInTaxableIncome" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Tax Basis Reconciliation, Interest On Non-accrual Loans, Increase (Decrease) In Taxable Income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyTaxBasisReconciliationInterestOnNonAccrualLoansIncreaseDecreaseInTaxableIncome" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyTaxBasisReconciliationInterestOnNonAccrualLoansIncreaseDecreaseInTaxableIncome"/>
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    <link:label id="lab_us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_019ff179-4f1a-7b43-8481-94a931becea9_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Contractual Payment Obligations</link:label>
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    <link:label id="lab_us-gaap_SubsidiarySaleOfStockAxis_019ff179-4f1a-74f5-8173-92375128a807_terseLabel_en-US" xlink:label="lab_us-gaap_SubsidiarySaleOfStockAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sale of Stock [Axis]</link:label>
    <link:label id="lab_us-gaap_SubsidiarySaleOfStockAxis_label_en-US" xlink:label="lab_us-gaap_SubsidiarySaleOfStockAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale of Stock [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
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    <link:label id="lab_us-gaap_EscrowDeposit_019ff179-4f9d-7800-a666-8f65e4c44001_terseLabel_en-US" xlink:label="lab_us-gaap_EscrowDeposit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Escrow</link:label>
    <link:label id="lab_us-gaap_EscrowDeposit_label_en-US" xlink:label="lab_us-gaap_EscrowDeposit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Escrow Deposit</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EscrowDeposit" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EscrowDeposit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EscrowDeposit" xlink:to="lab_us-gaap_EscrowDeposit" xlink:type="arc" order="1"/>
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    <link:label id="lab_us-gaap_DerivativeGainLossOnDerivativeNet_01a169b9-aab0-7327-b624-daaeaa2ac3a4_negatedLabel_en-US" xlink:label="lab_us-gaap_DerivativeGainLossOnDerivativeNet" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Adjustments of hedge accounting</link:label>
    <link:label id="lab_us-gaap_DerivativeGainLossOnDerivativeNet_label_en-US" xlink:label="lab_us-gaap_DerivativeGainLossOnDerivativeNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative, Gain (Loss) on Derivative, Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeGainLossOnDerivativeNet"/>
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    <link:label id="lab_cswc_CommercialServicesAndSuppliesMember_019ff179-4f1a-7227-9184-a67f76a16e5a_terseLabel_en-US" xlink:label="lab_cswc_CommercialServicesAndSuppliesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commercial Services &amp; Supplies</link:label>
    <link:label id="lab_cswc_CommercialServicesAndSuppliesMember_label_en-US" xlink:label="lab_cswc_CommercialServicesAndSuppliesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commercial Services and Supplies [Member]</link:label>
    <link:label id="lab_cswc_CommercialServicesAndSuppliesMember_documentation_en-US" xlink:label="lab_cswc_CommercialServicesAndSuppliesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Commercial Services and Supplies</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CommercialServicesAndSuppliesMember" xlink:href="cswc-20260930.xsd#cswc_CommercialServicesAndSuppliesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_CommercialServicesAndSuppliesMember" xlink:to="lab_cswc_CommercialServicesAndSuppliesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DelayedDrawTermLoanMember_019ff179-4f9d-753c-8a41-ff1817ca87e8_terseLabel_en-US" xlink:label="lab_us-gaap_DelayedDrawTermLoanMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Delayed Draw Term Loans</link:label>
    <link:label id="lab_us-gaap_DelayedDrawTermLoanMember_label_en-US" xlink:label="lab_us-gaap_DelayedDrawTermLoanMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Delayed Draw Term Loan (DDTL) [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DelayedDrawTermLoanMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DelayedDrawTermLoanMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DelayedDrawTermLoanMember" xlink:to="lab_us-gaap_DelayedDrawTermLoanMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyTaxBasisCapitalLossCarryforwardUtilization_019ff179-4f1a-7cb7-89c1-27f5ddf63464_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyTaxBasisCapitalLossCarryforwardUtilization" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capital loss carryover</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyTaxBasisCapitalLossCarryforwardUtilization_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyTaxBasisCapitalLossCarryforwardUtilization" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Tax Basis, Capital Loss Carryforward (Utilization)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyTaxBasisCapitalLossCarryforwardUtilization" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyTaxBasisCapitalLossCarryforwardUtilization"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyTaxBasisCapitalLossCarryforwardUtilization" xlink:to="lab_us-gaap_InvestmentCompanyTaxBasisCapitalLossCarryforwardUtilization" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_MembersEquity_019ff179-4f9d-73d4-a71b-f3f9fd690599_terseLabel_en-US" xlink:label="lab_us-gaap_MembersEquity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Members' equity</link:label>
    <link:label id="lab_us-gaap_MembersEquity_label_en-US" xlink:label="lab_us-gaap_MembersEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Members' Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MembersEquity" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MembersEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MembersEquity" xlink:to="lab_us-gaap_MembersEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_FirstLienLoansSplitLienTermLoansMember_019ff179-4e75-76fe-aaee-7948f4e5d68a_terseLabel_en-US" xlink:label="lab_cswc_FirstLienLoansSplitLienTermLoansMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">First Lien Loans, Split Lien Term Loans</link:label>
    <link:label id="lab_cswc_FirstLienLoansSplitLienTermLoansMember_label_en-US" xlink:label="lab_cswc_FirstLienLoansSplitLienTermLoansMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">First Lien Loans, Split Lien Term Loans [Member]</link:label>
    <link:label id="lab_cswc_FirstLienLoansSplitLienTermLoansMember_documentation_en-US" xlink:label="lab_cswc_FirstLienLoansSplitLienTermLoansMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">First Lien Loans, Split Lien Term Loans</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_FirstLienLoansSplitLienTermLoansMember" xlink:href="cswc-20260930.xsd#cswc_FirstLienLoansSplitLienTermLoansMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_FirstLienLoansSplitLienTermLoansMember" xlink:to="lab_cswc_FirstLienLoansSplitLienTermLoansMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_GUARDIANFLEETSERVICESINCMember_019ff179-4f9d-7143-9bdb-8c39890e1900_terseLabel_en-US" xlink:label="lab_cswc_GUARDIANFLEETSERVICESINCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">GUARDIAN FLEET SERVICES, INC.</link:label>
    <link:label id="lab_cswc_GUARDIANFLEETSERVICESINCMember_label_en-US" xlink:label="lab_cswc_GUARDIANFLEETSERVICESINCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">GUARDIAN FLEET SERVICES, INC. [Member]</link:label>
    <link:label id="lab_cswc_GUARDIANFLEETSERVICESINCMember_documentation_en-US" xlink:label="lab_cswc_GUARDIANFLEETSERVICESINCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">GUARDIAN FLEET SERVICES, INC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_GUARDIANFLEETSERVICESINCMember" xlink:href="cswc-20260930.xsd#cswc_GUARDIANFLEETSERVICESINCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_GUARDIANFLEETSERVICESINCMember" xlink:to="lab_cswc_GUARDIANFLEETSERVICESINCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_PrivatelyHeldDebtAndEquityInstrumentsMember_019ff179-4f9d-7d9d-b1f6-d036ced41ce1_terseLabel_en-US" xlink:label="lab_cswc_PrivatelyHeldDebtAndEquityInstrumentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Privately held debt and equity instruments</link:label>
    <link:label id="lab_cswc_PrivatelyHeldDebtAndEquityInstrumentsMember_label_en-US" xlink:label="lab_cswc_PrivatelyHeldDebtAndEquityInstrumentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Privately Held Debt And Equity Instruments [Member]</link:label>
    <link:label id="lab_cswc_PrivatelyHeldDebtAndEquityInstrumentsMember_documentation_en-US" xlink:label="lab_cswc_PrivatelyHeldDebtAndEquityInstrumentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Privately Held Debt And Equity Instruments [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_PrivatelyHeldDebtAndEquityInstrumentsMember" xlink:href="cswc-20260930.xsd#cswc_PrivatelyHeldDebtAndEquityInstrumentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_PrivatelyHeldDebtAndEquityInstrumentsMember" xlink:to="lab_cswc_PrivatelyHeldDebtAndEquityInstrumentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_BeforeMarch202027Member_019ff179-4f9d-7298-8f0b-2334a00ee98c_terseLabel_en-US" xlink:label="lab_cswc_BeforeMarch202027Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Before March 20 2027</link:label>
    <link:label id="lab_cswc_BeforeMarch202027Member_label_en-US" xlink:label="lab_cswc_BeforeMarch202027Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Before March 20 2027 [Member]</link:label>
    <link:label id="lab_cswc_BeforeMarch202027Member_documentation_en-US" xlink:label="lab_cswc_BeforeMarch202027Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Before March 20 2027</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_BeforeMarch202027Member" xlink:href="cswc-20260930.xsd#cswc_BeforeMarch202027Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_BeforeMarch202027Member" xlink:to="lab_cswc_BeforeMarch202027Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_Rule10b51ArrAdoptedFlag_terseLabel_en-US" xlink:label="lab_ecd_Rule10b51ArrAdoptedFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Rule 10b5-1 Arrangement Adopted</link:label>
    <link:label id="lab_ecd_Rule10b51ArrAdoptedFlag_label_en-US" xlink:label="lab_ecd_Rule10b51ArrAdoptedFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Rule 10b5-1 Arrangement Adopted [Flag]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_Rule10b51ArrAdoptedFlag" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_Rule10b51ArrAdoptedFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_Rule10b51ArrAdoptedFlag" xlink:to="lab_ecd_Rule10b51ArrAdoptedFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_AACNEWHOLDCOINCEquityInvestmentsMember_019ff179-4e75-73dc-8ef7-644aa7fc728b_terseLabel_en-US" xlink:label="lab_cswc_AACNEWHOLDCOINCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">AAC NEW HOLDCO INC.</link:label>
    <link:label id="lab_cswc_AACNEWHOLDCOINCEquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_AACNEWHOLDCOINCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">AAC NEW HOLDCO INC., Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_AACNEWHOLDCOINCEquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_AACNEWHOLDCOINCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">AAC NEW HOLDCO INC., Equity Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_AACNEWHOLDCOINCEquityInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_AACNEWHOLDCOINCEquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_AACNEWHOLDCOINCEquityInvestmentsMember" xlink:to="lab_cswc_AACNEWHOLDCOINCEquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentOwnedAtFairValue_019ff179-4f9d-73ae-9b0d-77ea09de2de2_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentOwnedAtFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investments at fair value</link:label>
    <link:label id="lab_us-gaap_InvestmentOwnedAtFairValue_019ff179-4f9d-74aa-9568-04d679033f29_verboseLabel_en-US" xlink:label="lab_us-gaap_InvestmentOwnedAtFairValue" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Fair&#160;Value</link:label>
    <link:label id="lab_us-gaap_InvestmentOwnedAtFairValue_019ff179-4f9d-7687-ad55-bad7a2a730a0_netLabel_en-US" xlink:label="lab_us-gaap_InvestmentOwnedAtFairValue" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Investment owned, fair value</link:label>
    <link:label id="lab_us-gaap_InvestmentOwnedAtFairValue_019ff179-4f9d-7c1e-a5ce-4a1ee2fa0835_periodStartLabel_en-US" xlink:label="lab_us-gaap_InvestmentOwnedAtFairValue" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Fair Value, beginning balance</link:label>
    <link:label id="lab_us-gaap_InvestmentOwnedAtFairValue_019ff179-4f9d-7d40-a85d-2ce96a0a81e9_periodEndLabel_en-US" xlink:label="lab_us-gaap_InvestmentOwnedAtFairValue" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Fair Value, ending balance</link:label>
    <link:label id="lab_us-gaap_InvestmentOwnedAtFairValue_label_en-US" xlink:label="lab_us-gaap_InvestmentOwnedAtFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Owned, Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtFairValue" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentOwnedAtFairValue" xlink:to="lab_us-gaap_InvestmentOwnedAtFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquitySecuritiesMember_019ff179-4f9d-7627-a7b0-a6dfd7b1d121_terseLabel_en-US" xlink:label="lab_us-gaap_EquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity Investments</link:label>
    <link:label id="lab_us-gaap_EquitySecuritiesMember_label_en-US" xlink:label="lab_us-gaap_EquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Securities [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquitySecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquitySecuritiesMember" xlink:to="lab_us-gaap_EquitySecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GainContingenciesLineItems_019ff179-4e75-760b-95ec-61a77d71dc0f_terseLabel_en-US" xlink:label="lab_us-gaap_GainContingenciesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gain Contingencies [Line Items]</link:label>
    <link:label id="lab_us-gaap_GainContingenciesLineItems_label_en-US" xlink:label="lab_us-gaap_GainContingenciesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain Contingencies [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainContingenciesLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainContingenciesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainContingenciesLineItems" xlink:to="lab_us-gaap_GainContingenciesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_August2028NotesOverallotmentMember_019ff179-4e74-7795-a56a-b09988a0948d_terseLabel_en-US" xlink:label="lab_cswc_August2028NotesOverallotmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">August 2028 Notes Overallotment</link:label>
    <link:label id="lab_cswc_August2028NotesOverallotmentMember_label_en-US" xlink:label="lab_cswc_August2028NotesOverallotmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">August 2028 Notes Overallotment [Member]</link:label>
    <link:label id="lab_cswc_August2028NotesOverallotmentMember_documentation_en-US" xlink:label="lab_cswc_August2028NotesOverallotmentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">August 2028 Notes Overallotment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_August2028NotesOverallotmentMember" xlink:href="cswc-20260930.xsd#cswc_August2028NotesOverallotmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_August2028NotesOverallotmentMember" xlink:to="lab_cswc_August2028NotesOverallotmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_019ff179-4f9d-707c-800a-e2e003bf234b_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList" xlink:to="lab_us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockSharesIssued_019ff179-4e75-71ea-854c-a99282e2a11e_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common stock, issued (in shares)</link:label>
    <link:label id="lab_us-gaap_CommonStockSharesIssued_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesIssued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Shares, Issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesIssued" xlink:to="lab_us-gaap_CommonStockSharesIssued" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_019ff179-4f9d-7219-ba97-a99b2a08ce80_periodStartLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Fair value, beginning balance</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_019ff179-4f9d-7a66-ac96-6b62bd32e9c9_periodEndLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Fair value. ending balance</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:to="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTextBlock_019ff179-4e75-7a69-962f-dff477369a2b_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Investments in and Advances to Affiliates</link:label>
    <link:label id="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTextBlock_label_en-US" xlink:label="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments in and Advances to Affiliates, Schedule of Investments [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTextBlock" xlink:to="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_PaymentInKindInterestAccrued_019ff179-4f1a-7139-9444-9cb97d86c977_negatedTerseLabel_en-US" xlink:label="lab_cswc_PaymentInKindInterestAccrued" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Payment-in-kind interest</link:label>
    <link:label id="lab_cswc_PaymentInKindInterestAccrued_label_en-US" xlink:label="lab_cswc_PaymentInKindInterestAccrued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payment-In-Kind Interest Accrued</link:label>
    <link:label id="lab_cswc_PaymentInKindInterestAccrued_documentation_en-US" xlink:label="lab_cswc_PaymentInKindInterestAccrued" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Payment-In-Kind Interest Accrued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_PaymentInKindInterestAccrued" xlink:href="cswc-20260930.xsd#cswc_PaymentInKindInterestAccrued"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_PaymentInKindInterestAccrued" xlink:to="lab_cswc_PaymentInKindInterestAccrued" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashUninsuredAmount_019ff179-4f9d-7d49-9e02-841b51ce26e2_terseLabel_en-US" xlink:label="lab_us-gaap_CashUninsuredAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">FDIC uninsured amount</link:label>
    <link:label id="lab_us-gaap_CashUninsuredAmount_label_en-US" xlink:label="lab_us-gaap_CashUninsuredAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash, Uninsured Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashUninsuredAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashUninsuredAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashUninsuredAmount" xlink:to="lab_us-gaap_CashUninsuredAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_TrinityCapitalInc.Member_019ff179-4f1b-7603-980e-c68771aa62b5_terseLabel_en-US" xlink:label="lab_cswc_TrinityCapitalInc.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trinity</link:label>
    <link:label id="lab_cswc_TrinityCapitalInc.Member_label_en-US" xlink:label="lab_cswc_TrinityCapitalInc.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trinity Capital Inc. [Member]</link:label>
    <link:label id="lab_cswc_TrinityCapitalInc.Member_documentation_en-US" xlink:label="lab_cswc_TrinityCapitalInc.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Trinity Capital Inc.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_TrinityCapitalInc.Member" xlink:href="cswc-20260930.xsd#cswc_TrinityCapitalInc.Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_TrinityCapitalInc.Member" xlink:to="lab_cswc_TrinityCapitalInc.Member" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DebtInstrumentConvertibleConversionPremiumPercentage_019ff179-4e75-7fdf-8dda-a875ae254d97_terseLabel_en-US" xlink:label="lab_cswc_DebtInstrumentConvertibleConversionPremiumPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Conversion premium</link:label>
    <link:label id="lab_cswc_DebtInstrumentConvertibleConversionPremiumPercentage_label_en-US" xlink:label="lab_cswc_DebtInstrumentConvertibleConversionPremiumPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Convertible, Conversion Premium Percentage</link:label>
    <link:label id="lab_cswc_DebtInstrumentConvertibleConversionPremiumPercentage_documentation_en-US" xlink:label="lab_cswc_DebtInstrumentConvertibleConversionPremiumPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instrument, Convertible, Conversion Premium Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DebtInstrumentConvertibleConversionPremiumPercentage" xlink:href="cswc-20260930.xsd#cswc_DebtInstrumentConvertibleConversionPremiumPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DebtInstrumentConvertibleConversionPremiumPercentage" xlink:to="lab_cswc_DebtInstrumentConvertibleConversionPremiumPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet_019ff179-4e75-7f05-8a0d-ee6e22a75fec_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax liability</link:label>
    <link:label id="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Income Tax Liabilities, Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:to="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_CompActuallyPaidVsOtherMeasureTextBlock_terseLabel_en-US" xlink:label="lab_ecd_CompActuallyPaidVsOtherMeasureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Compensation Actually Paid vs. Other Measure</link:label>
    <link:label id="lab_ecd_CompActuallyPaidVsOtherMeasureTextBlock_label_en-US" xlink:label="lab_ecd_CompActuallyPaidVsOtherMeasureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Compensation Actually Paid vs. Other Measure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_CompActuallyPaidVsOtherMeasureTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_CompActuallyPaidVsOtherMeasureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_CompActuallyPaidVsOtherMeasureTextBlock" xlink:to="lab_ecd_CompActuallyPaidVsOtherMeasureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ZINKANENTERPRISESINC.Member_01a13e3b-e8eb-75cc-9b3b-78d40a0b961b_terseLabel_en-US" xlink:label="lab_cswc_ZINKANENTERPRISESINC.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ZINKAN ENTERPRISES, INC.</link:label>
    <link:label id="lab_cswc_ZINKANENTERPRISESINC.Member_label_en-US" xlink:label="lab_cswc_ZINKANENTERPRISESINC.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ZINKAN ENTERPRISES, INC. [Member]</link:label>
    <link:label id="lab_cswc_ZINKANENTERPRISESINC.Member_documentation_en-US" xlink:label="lab_cswc_ZINKANENTERPRISESINC.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ZINKAN ENTERPRISES, INC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ZINKANENTERPRISESINC.Member" xlink:href="cswc-20260930.xsd#cswc_ZINKANENTERPRISESINC.Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ZINKANENTERPRISESINC.Member" xlink:to="lab_cswc_ZINKANENTERPRISESINC.Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DefinedContributionPlanCostRecognized_019ff179-4f1a-74c1-8b98-30b0fe91066f_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedContributionPlanCostRecognized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Matching contributions cost</link:label>
    <link:label id="lab_us-gaap_DefinedContributionPlanCostRecognized_label_en-US" xlink:label="lab_us-gaap_DefinedContributionPlanCostRecognized" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan, Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanCostRecognized" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedContributionPlanCostRecognized"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedContributionPlanCostRecognized" xlink:to="lab_us-gaap_DefinedContributionPlanCostRecognized" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ConsolidatedEntityExcludingVieMember_019ff179-4f1b-7d93-b5ab-10c2b1a22cfc_terseLabel_en-US" xlink:label="lab_us-gaap_ConsolidatedEntityExcludingVieMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">RIC</link:label>
    <link:label id="lab_us-gaap_ConsolidatedEntityExcludingVieMember_label_en-US" xlink:label="lab_us-gaap_ConsolidatedEntityExcludingVieMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consolidated Entity, Excluding VIE [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConsolidatedEntityExcludingVieMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConsolidatedEntityExcludingVieMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConsolidatedEntityExcludingVieMember" xlink:to="lab_us-gaap_ConsolidatedEntityExcludingVieMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyShareBasedCompensationExpensePerShare_019ff179-4f9d-70dc-9d3f-a1d72fb3c3bb_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyShareBasedCompensationExpensePerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share based compensation expense (in usd per share)</link:label>
    <link:label id="lab_cswc_InvestmentCompanyShareBasedCompensationExpensePerShare_label_en-US" xlink:label="lab_cswc_InvestmentCompanyShareBasedCompensationExpensePerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Share Based Compensation Expense, Per Share</link:label>
    <link:label id="lab_cswc_InvestmentCompanyShareBasedCompensationExpensePerShare_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyShareBasedCompensationExpensePerShare" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Share Based Compensation Expense, Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyShareBasedCompensationExpensePerShare" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyShareBasedCompensationExpensePerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyShareBasedCompensationExpensePerShare" xlink:to="lab_cswc_InvestmentCompanyShareBasedCompensationExpensePerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_019ff179-4f1a-7cb1-9a91-9d54808f72c4_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2030</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Operating Lease, Liability, to be Paid, Year Three</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_TrdArrTerminationDate_terseLabel_en-US" xlink:label="lab_ecd_TrdArrTerminationDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Termination Date</link:label>
    <link:label id="lab_ecd_TrdArrTerminationDate_label_en-US" xlink:label="lab_ecd_TrdArrTerminationDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading Arrangement Termination Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrTerminationDate" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TrdArrTerminationDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_TrdArrTerminationDate" xlink:to="lab_ecd_TrdArrTerminationDate" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentOwnedFairValueMember_019ff179-4e75-7c73-bcf1-e84b2724a175_terseLabel_en-US" xlink:label="lab_cswc_InvestmentOwnedFairValueMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of Total&#160;Portfolio at Fair Value</link:label>
    <link:label id="lab_cswc_InvestmentOwnedFairValueMember_label_en-US" xlink:label="lab_cswc_InvestmentOwnedFairValueMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Owned, Fair Value [Member]</link:label>
    <link:label id="lab_cswc_InvestmentOwnedFairValueMember_documentation_en-US" xlink:label="lab_cswc_InvestmentOwnedFairValueMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Owned, Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentOwnedFairValueMember" xlink:href="cswc-20260930.xsd#cswc_InvestmentOwnedFairValueMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentOwnedFairValueMember" xlink:to="lab_cswc_InvestmentOwnedFairValueMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ISIENTERPRISESLLCMember_019ff179-4e75-752c-8668-15aab1fac6fd_terseLabel_en-US" xlink:label="lab_cswc_ISIENTERPRISESLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ISI ENTERPRISES, LLC</link:label>
    <link:label id="lab_cswc_ISIENTERPRISESLLCMember_label_en-US" xlink:label="lab_cswc_ISIENTERPRISESLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ISI ENTERPRISES, LLC [Member]</link:label>
    <link:label id="lab_cswc_ISIENTERPRISESLLCMember_documentation_en-US" xlink:label="lab_cswc_ISIENTERPRISESLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ISI ENTERPRISES, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ISIENTERPRISESLLCMember" xlink:href="cswc-20260930.xsd#cswc_ISIENTERPRISESLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ISIENTERPRISESLLCMember" xlink:to="lab_cswc_ISIENTERPRISESLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock_terseLabel_en-US" xlink:label="lab_ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Compensation Actually Paid vs. Total Shareholder Return</link:label>
    <link:label id="lab_ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock_label_en-US" xlink:label="lab_ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Compensation Actually Paid vs. Total Shareholder Return [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock" xlink:to="lab_ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AwardGrantDateFairValue_terseLabel_en-US" xlink:label="lab_ecd_AwardGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value as of Grant Date</link:label>
    <link:label id="lab_ecd_AwardGrantDateFairValue_label_en-US" xlink:label="lab_ecd_AwardGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Grant Date Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardGrantDateFairValue" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardGrantDateFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AwardGrantDateFairValue" xlink:to="lab_ecd_AwardGrantDateFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPricePercentage_019ff179-4f1a-75a6-a442-d0c4ad443ea3_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPricePercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Redemption price, percentage</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPricePercentage_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPricePercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Redemption Price, Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPricePercentage" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentRedemptionPricePercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPricePercentage" xlink:to="lab_us-gaap_DebtInstrumentRedemptionPricePercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit_019ff179-4e75-7477-94fd-299bfd91c91a_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Income tax benefit (provision)</link:label>
    <link:label id="lab_us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit_label_en-US" xlink:label="lab_us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unrealized Gain (Loss), Investment and Derivative, Operating, Tax Expense (Benefit)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit" xlink:to="lab_us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_S2027Q3DividendsMember_01a16518-0a57-77bf-9f26-0b41ace9a68d_terseLabel_en-US" xlink:label="lab_cswc_S2027Q3DividendsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">S 2027 Q3 Dividends</link:label>
    <link:label id="lab_cswc_S2027Q3DividendsMember_label_en-US" xlink:label="lab_cswc_S2027Q3DividendsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">S 2027 Q3 Dividends [Member]</link:label>
    <link:label id="lab_cswc_S2027Q3DividendsMember_documentation_en-US" xlink:label="lab_cswc_S2027Q3DividendsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S 2027 Q3 Dividends</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_S2027Q3DividendsMember" xlink:href="cswc-20260930.xsd#cswc_S2027Q3DividendsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_S2027Q3DividendsMember" xlink:to="lab_cswc_S2027Q3DividendsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_LeverageableCapital_019ff179-4f9d-7bc6-931a-4b1c2ed9a291_terseLabel_en-US" xlink:label="lab_cswc_LeverageableCapital" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Available leverage commitment</link:label>
    <link:label id="lab_cswc_LeverageableCapital_label_en-US" xlink:label="lab_cswc_LeverageableCapital" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Leverageable Capital</link:label>
    <link:label id="lab_cswc_LeverageableCapital_documentation_en-US" xlink:label="lab_cswc_LeverageableCapital" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Leverageable Capital</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_LeverageableCapital" xlink:href="cswc-20260930.xsd#cswc_LeverageableCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_LeverageableCapital" xlink:to="lab_cswc_LeverageableCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SPECTRUMOFHOPELLCMember_019ff179-4f9d-792b-ad43-38deebb63376_terseLabel_en-US" xlink:label="lab_cswc_SPECTRUMOFHOPELLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SPECTRUM OF HOPE, LLC</link:label>
    <link:label id="lab_cswc_SPECTRUMOFHOPELLCMember_label_en-US" xlink:label="lab_cswc_SPECTRUMOFHOPELLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">SPECTRUM OF HOPE, LLC [Member]</link:label>
    <link:label id="lab_cswc_SPECTRUMOFHOPELLCMember_documentation_en-US" xlink:label="lab_cswc_SPECTRUMOFHOPELLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">SPECTRUM OF HOPE, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SPECTRUMOFHOPELLCMember" xlink:href="cswc-20260930.xsd#cswc_SPECTRUMOFHOPELLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SPECTRUMOFHOPELLCMember" xlink:to="lab_cswc_SPECTRUMOFHOPELLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_PvpTableTextBlock_terseLabel_en-US" xlink:label="lab_ecd_PvpTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pay vs Performance Disclosure, Table</link:label>
    <link:label id="lab_ecd_PvpTableTextBlock_label_en-US" xlink:label="lab_ecd_PvpTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pay vs Performance [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PvpTableTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PvpTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_PvpTableTextBlock" xlink:to="lab_ecd_PvpTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_019ff179-4e75-765e-ba82-bc244eea8148_terseLabel_en-US" xlink:label="lab_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Available under the equity ATM program</link:label>
    <link:label id="lab_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_label_en-US" xlink:label="lab_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share Repurchase Program, Remaining Authorized, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xlink:to="lab_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_TrdArrDuration_terseLabel_en-US" xlink:label="lab_ecd_TrdArrDuration" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Arrangement Duration</link:label>
    <link:label id="lab_ecd_TrdArrDuration_label_en-US" xlink:label="lab_ecd_TrdArrDuration" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading Arrangement Duration</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrDuration" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TrdArrDuration"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_TrdArrDuration" xlink:to="lab_ecd_TrdArrDuration" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PensionExpenseReversalOfExpenseNoncash_019ff179-4f9d-7cda-8a54-c9aea322b84d_terseLabel_en-US" xlink:label="lab_us-gaap_PensionExpenseReversalOfExpenseNoncash" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net pension benefit</link:label>
    <link:label id="lab_us-gaap_PensionExpenseReversalOfExpenseNoncash_label_en-US" xlink:label="lab_us-gaap_PensionExpenseReversalOfExpenseNoncash" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pension Expense (Reversal of Expense), Noncash</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionExpenseReversalOfExpenseNoncash" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PensionExpenseReversalOfExpenseNoncash"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PensionExpenseReversalOfExpenseNoncash" xlink:to="lab_us-gaap_PensionExpenseReversalOfExpenseNoncash" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyPerShareDataAbstract_019ff179-4f9d-7b49-9430-ff22f6e53a75_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyPerShareDataAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Per Share Data:</link:label>
    <link:label id="lab_cswc_InvestmentCompanyPerShareDataAbstract_label_en-US" xlink:label="lab_cswc_InvestmentCompanyPerShareDataAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Per Share Data [Abstract]</link:label>
    <link:label id="lab_cswc_InvestmentCompanyPerShareDataAbstract_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyPerShareDataAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Per Share Data [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyPerShareDataAbstract" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyPerShareDataAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyPerShareDataAbstract" xlink:to="lab_cswc_InvestmentCompanyPerShareDataAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressPostalZipCode_019ff179-4f1a-7bc9-b8ce-8f9ade4f3825_terseLabel_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressPostalZipCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressPostalZipCode" xlink:to="lab_dei_EntityAddressPostalZipCode" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityRegistrantName_019ff179-4f1a-782f-940f-97cc219ec7d3_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName" xlink:to="lab_dei_EntityRegistrantName" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_LineOfCreditFacilityAccordionFeatureIncreaseLimit_019ff179-4f9d-7074-ba9d-a8856ee41d20_terseLabel_en-US" xlink:label="lab_cswc_LineOfCreditFacilityAccordionFeatureIncreaseLimit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accordion feature increase limit</link:label>
    <link:label id="lab_cswc_LineOfCreditFacilityAccordionFeatureIncreaseLimit_label_en-US" xlink:label="lab_cswc_LineOfCreditFacilityAccordionFeatureIncreaseLimit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Line of Credit Facility, Accordion Feature, Increase Limit</link:label>
    <link:label id="lab_cswc_LineOfCreditFacilityAccordionFeatureIncreaseLimit_documentation_en-US" xlink:label="lab_cswc_LineOfCreditFacilityAccordionFeatureIncreaseLimit" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Line of Credit Facility, Accordion Feature, Increase Limit</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_LineOfCreditFacilityAccordionFeatureIncreaseLimit" xlink:href="cswc-20260930.xsd#cswc_LineOfCreditFacilityAccordionFeatureIncreaseLimit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_LineOfCreditFacilityAccordionFeatureIncreaseLimit" xlink:to="lab_cswc_LineOfCreditFacilityAccordionFeatureIncreaseLimit" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_JointVentureJVEquityMember_01a156e6-bd9c-7cbc-b29e-45bc853fcac0_terseLabel_en-US" xlink:label="lab_cswc_JointVentureJVEquityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Joint Venture ("JV") Equity</link:label>
    <link:label id="lab_cswc_JointVentureJVEquityMember_label_en-US" xlink:label="lab_cswc_JointVentureJVEquityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Joint Venture ("JV") Equity [Member]</link:label>
    <link:label id="lab_cswc_JointVentureJVEquityMember_documentation_en-US" xlink:label="lab_cswc_JointVentureJVEquityMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Joint Venture ("JV") Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_JointVentureJVEquityMember" xlink:href="cswc-20260930.xsd#cswc_JointVentureJVEquityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_JointVentureJVEquityMember" xlink:to="lab_cswc_JointVentureJVEquityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock_terseLabel_en-US" xlink:label="lab_ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Insider Trading Policies and Procedures Not Adopted</link:label>
    <link:label id="lab_ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock_label_en-US" xlink:label="lab_ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Insider Trading Policies and Procedures Not Adopted [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock" xlink:to="lab_ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ARKSTONEMEDICALSOLUTIONSLLCMember_019ff179-4f9d-776f-98a6-adb9dd3aa3da_terseLabel_en-US" xlink:label="lab_cswc_ARKSTONEMEDICALSOLUTIONSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ARKSTONE MEDICAL SOLUTIONS LLC</link:label>
    <link:label id="lab_cswc_ARKSTONEMEDICALSOLUTIONSLLCMember_label_en-US" xlink:label="lab_cswc_ARKSTONEMEDICALSOLUTIONSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ARKSTONE MEDICAL SOLUTIONS LLC [Member]</link:label>
    <link:label id="lab_cswc_ARKSTONEMEDICALSOLUTIONSLLCMember_documentation_en-US" xlink:label="lab_cswc_ARKSTONEMEDICALSOLUTIONSLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ARKSTONE MEDICAL SOLUTIONS LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ARKSTONEMEDICALSOLUTIONSLLCMember" xlink:href="cswc-20260930.xsd#cswc_ARKSTONEMEDICALSOLUTIONSLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ARKSTONEMEDICALSOLUTIONSLLCMember" xlink:to="lab_cswc_ARKSTONEMEDICALSOLUTIONSLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestIncomeOperatingAbstract_019ff179-4f1a-7b34-9e27-b72ec4610221_terseLabel_en-US" xlink:label="lab_us-gaap_InterestIncomeOperatingAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest income:</link:label>
    <link:label id="lab_us-gaap_InterestIncomeOperatingAbstract_label_en-US" xlink:label="lab_us-gaap_InterestIncomeOperatingAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Income, Operating [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeOperatingAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeOperatingAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestIncomeOperatingAbstract" xlink:to="lab_us-gaap_InterestIncomeOperatingAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_Revenues_019ff179-4e75-7d2a-b96f-07159525d0b3_terseLabel_en-US" xlink:label="lab_us-gaap_Revenues" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total revenues</link:label>
    <link:label id="lab_us-gaap_Revenues_label_en-US" xlink:label="lab_us-gaap_Revenues" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenues</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Revenues" xlink:to="lab_us-gaap_Revenues" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_AfterMarch202027Member_019ff179-4f1a-7237-b151-abb19fec8b49_terseLabel_en-US" xlink:label="lab_cswc_AfterMarch202027Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">After March 20 2027</link:label>
    <link:label id="lab_cswc_AfterMarch202027Member_label_en-US" xlink:label="lab_cswc_AfterMarch202027Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">After March 20 2027 [Member]</link:label>
    <link:label id="lab_cswc_AfterMarch202027Member_documentation_en-US" xlink:label="lab_cswc_AfterMarch202027Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">After March 20 2027</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_AfterMarch202027Member" xlink:href="cswc-20260930.xsd#cswc_AfterMarch202027Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_AfterMarch202027Member" xlink:to="lab_cswc_AfterMarch202027Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt_terseLabel_en-US" xlink:label="lab_ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Forgone Recovery due to Expense of Enforcement, Amount</link:label>
    <link:label id="lab_ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt_label_en-US" xlink:label="lab_ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Forgone Recovery due to Expense of Enforcement, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt" xlink:to="lab_ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyTargetInvestment_019ff179-4f1a-7051-9664-e286be2df011_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyTargetInvestment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Target investment</link:label>
    <link:label id="lab_cswc_InvestmentCompanyTargetInvestment_label_en-US" xlink:label="lab_cswc_InvestmentCompanyTargetInvestment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Target Investment</link:label>
    <link:label id="lab_cswc_InvestmentCompanyTargetInvestment_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyTargetInvestment" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Target Investment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyTargetInvestment" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyTargetInvestment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyTargetInvestment" xlink:to="lab_cswc_InvestmentCompanyTargetInvestment" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestIncomeOperatingPaidInKind_019ff179-4e75-7cc3-9de2-15bffa1fc7a3_terseLabel_en-US" xlink:label="lab_us-gaap_InterestIncomeOperatingPaidInKind" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Payment-in-kind interest income</link:label>
    <link:label id="lab_us-gaap_InterestIncomeOperatingPaidInKind_label_en-US" xlink:label="lab_us-gaap_InterestIncomeOperatingPaidInKind" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Income, Operating, Paid in Kind</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeOperatingPaidInKind" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeOperatingPaidInKind"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestIncomeOperatingPaidInKind" xlink:to="lab_us-gaap_InterestIncomeOperatingPaidInKind" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_019ff179-4f1b-7d8d-932a-34333455c2f2_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Vesting period (in years)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_GULFPACIFICACQUISITIONLLCMember_019ff179-4e75-7622-a4a7-4f6315b804ba_terseLabel_en-US" xlink:label="lab_cswc_GULFPACIFICACQUISITIONLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">GULF PACIFIC ACQUISITION, LLC</link:label>
    <link:label id="lab_cswc_GULFPACIFICACQUISITIONLLCMember_label_en-US" xlink:label="lab_cswc_GULFPACIFICACQUISITIONLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">GULF PACIFIC ACQUISITION, LLC [Member]</link:label>
    <link:label id="lab_cswc_GULFPACIFICACQUISITIONLLCMember_documentation_en-US" xlink:label="lab_cswc_GULFPACIFICACQUISITIONLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">GULF PACIFIC ACQUISITION, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_GULFPACIFICACQUISITIONLLCMember" xlink:href="cswc-20260930.xsd#cswc_GULFPACIFICACQUISITIONLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_GULFPACIFICACQUISITIONLLCMember" xlink:to="lab_cswc_GULFPACIFICACQUISITIONLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ff179-4f1a-70f4-acfa-aef96f224e72_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Award Type [Domain]</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyRealizedGainLossOnInvestmentPerShare_019ff179-4f9d-7fad-a85f-fca45b01505e_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyRealizedGainLossOnInvestmentPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net realized gain (loss), net of tax (in usd per share)</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyRealizedGainLossOnInvestmentPerShare_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyRealizedGainLossOnInvestmentPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Realized Gain (Loss) on Investment, Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyRealizedGainLossOnInvestmentPerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyRealizedGainLossOnInvestmentPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyRealizedGainLossOnInvestmentPerShare" xlink:to="lab_us-gaap_InvestmentCompanyRealizedGainLossOnInvestmentPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_CMCONVEYORINCMember_019ff179-4e75-710f-b03d-d88ad4b30688_terseLabel_en-US" xlink:label="lab_cswc_CMCONVEYORINCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">C&amp;M CONVEYOR, INC.</link:label>
    <link:label id="lab_cswc_CMCONVEYORINCMember_label_en-US" xlink:label="lab_cswc_CMCONVEYORINCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">C&amp;M CONVEYOR, INC. [Member]</link:label>
    <link:label id="lab_cswc_CMCONVEYORINCMember_documentation_en-US" xlink:label="lab_cswc_CMCONVEYORINCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">C&amp;M CONVEYOR, INC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CMCONVEYORINCMember" xlink:href="cswc-20260930.xsd#cswc_CMCONVEYORINCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_CMCONVEYORINCMember" xlink:to="lab_cswc_CMCONVEYORINCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_019ff179-4f9d-7dbc-87be-33ca14a3e5e4_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2027</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueDisclosuresTextBlock_019ff179-4f1a-7490-a758-fb25e97eb055_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">FAIR VALUE MEASUREMENTS</link:label>
    <link:label id="lab_us-gaap_FairValueDisclosuresTextBlock_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Disclosures [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosuresTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosuresTextBlock" xlink:to="lab_us-gaap_FairValueDisclosuresTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueInputsLevel3Member_019ff179-4f1a-7a03-888d-20542bf5807c_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel3Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Significant Unobservable Inputs (Level&#160;3)</link:label>
    <link:label id="lab_us-gaap_FairValueInputsLevel3Member_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel3Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Inputs, Level 3 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel3Member" xlink:to="lab_us-gaap_FairValueInputsLevel3Member" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyTaxBasisReconciliationNonDeductibleCompensationIncreaseDecreaseInTaxableIncome_019ff179-4f1a-720b-bfc7-97209449ecfa_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyTaxBasisReconciliationNonDeductibleCompensationIncreaseDecreaseInTaxableIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-deductible compensation</link:label>
    <link:label id="lab_cswc_InvestmentCompanyTaxBasisReconciliationNonDeductibleCompensationIncreaseDecreaseInTaxableIncome_label_en-US" xlink:label="lab_cswc_InvestmentCompanyTaxBasisReconciliationNonDeductibleCompensationIncreaseDecreaseInTaxableIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Tax Basis Reconciliation, Non-Deductible Compensation, Increase (Decrease) In Taxable Income</link:label>
    <link:label id="lab_cswc_InvestmentCompanyTaxBasisReconciliationNonDeductibleCompensationIncreaseDecreaseInTaxableIncome_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyTaxBasisReconciliationNonDeductibleCompensationIncreaseDecreaseInTaxableIncome" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Tax Basis Reconciliation, Non-Deductible Compensation, Increase (Decrease) In Taxable Income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyTaxBasisReconciliationNonDeductibleCompensationIncreaseDecreaseInTaxableIncome" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyTaxBasisReconciliationNonDeductibleCompensationIncreaseDecreaseInTaxableIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyTaxBasisReconciliationNonDeductibleCompensationIncreaseDecreaseInTaxableIncome" xlink:to="lab_cswc_InvestmentCompanyTaxBasisReconciliationNonDeductibleCompensationIncreaseDecreaseInTaxableIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AssetPledgedAsCollateralMember_01a16861-5acc-794d-9512-a4c4b26b0d72_terseLabel_en-US" xlink:label="lab_us-gaap_AssetPledgedAsCollateralMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Asset Pledged as Collateral</link:label>
    <link:label id="lab_us-gaap_AssetPledgedAsCollateralMember_label_en-US" xlink:label="lab_us-gaap_AssetPledgedAsCollateralMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Asset Pledged as Collateral [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetPledgedAsCollateralMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetPledgedAsCollateralMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetPledgedAsCollateralMember" xlink:to="lab_us-gaap_AssetPledgedAsCollateralMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SharePrice_019ff179-4f1a-7235-97fb-5fba5f9f0266_terseLabel_en-US" xlink:label="lab_us-gaap_SharePrice" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Closing stock price at issuance (in usd per share)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharePrice"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SharePrice" xlink:to="lab_us-gaap_SharePrice" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_PERSADOINC.Member_019ff179-4f9d-7020-b1a1-a7dfecac0f32_terseLabel_en-US" xlink:label="lab_cswc_PERSADOINC.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">PERSADO INC.</link:label>
    <link:label id="lab_cswc_PERSADOINC.Member_label_en-US" xlink:label="lab_cswc_PERSADOINC.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">PERSADO INC. [Member]</link:label>
    <link:label id="lab_cswc_PERSADOINC.Member_documentation_en-US" xlink:label="lab_cswc_PERSADOINC.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">PERSADO INC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_PERSADOINC.Member" xlink:href="cswc-20260930.xsd#cswc_PERSADOINC.Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_PERSADOINC.Member" xlink:to="lab_cswc_PERSADOINC.Member" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ExpirationTrancheTwoMember_019ff179-4f1a-7ff2-9cec-4314c3c52a65_terseLabel_en-US" xlink:label="lab_cswc_ExpirationTrancheTwoMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">March 2027</link:label>
    <link:label id="lab_cswc_ExpirationTrancheTwoMember_label_en-US" xlink:label="lab_cswc_ExpirationTrancheTwoMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expiration Tranche Two [Member]</link:label>
    <link:label id="lab_cswc_ExpirationTrancheTwoMember_documentation_en-US" xlink:label="lab_cswc_ExpirationTrancheTwoMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Expiration Tranche Two</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ExpirationTrancheTwoMember" xlink:href="cswc-20260930.xsd#cswc_ExpirationTrancheTwoMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ExpirationTrancheTwoMember" xlink:to="lab_cswc_ExpirationTrancheTwoMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger_019ff179-4f1a-7155-b664-5df3c33648d3_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of stock price</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger" xlink:to="lab_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_StatementGeographicalAxis_019ff179-4f1a-7543-8c5f-d1700d053953_terseLabel_en-US" xlink:label="lab_srt_StatementGeographicalAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Geographical [Axis]</link:label>
    <link:label id="lab_srt_StatementGeographicalAxis_label_en-US" xlink:label="lab_srt_StatementGeographicalAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographical [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StatementGeographicalAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_StatementGeographicalAxis" xlink:to="lab_srt_StatementGeographicalAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_CommercialServicesSuppliesMember_019ff179-4e75-7104-94a6-77604b2ccdf9_terseLabel_en-US" xlink:label="lab_cswc_CommercialServicesSuppliesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commercial Services &amp; Supplies</link:label>
    <link:label id="lab_cswc_CommercialServicesSuppliesMember_label_en-US" xlink:label="lab_cswc_CommercialServicesSuppliesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commercial Services &amp; Supplies [Member]</link:label>
    <link:label id="lab_cswc_CommercialServicesSuppliesMember_documentation_en-US" xlink:label="lab_cswc_CommercialServicesSuppliesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Commercial Services &amp; Supplies</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CommercialServicesSuppliesMember" xlink:href="cswc-20260930.xsd#cswc_CommercialServicesSuppliesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_CommercialServicesSuppliesMember" xlink:to="lab_cswc_CommercialServicesSuppliesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCMember_019ff179-4f9d-7490-a521-7c3413c9d144_terseLabel_en-US" xlink:label="lab_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">APPLE ROOFING ADMINISTRATIVE SERVICES, LLC</link:label>
    <link:label id="lab_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCMember_label_en-US" xlink:label="lab_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">APPLE ROOFING ADMINISTRATIVE SERVICES, LLC (fka ROOF OPCO, LLC) [Member]</link:label>
    <link:label id="lab_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCMember_documentation_en-US" xlink:label="lab_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">APPLE ROOFING ADMINISTRATIVE SERVICES, LLC (fka ROOF OPCO, LLC)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCMember" xlink:href="cswc-20260930.xsd#cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCMember" xlink:to="lab_cswc_APPLEROOFINGADMINISTRATIVESERVICESLLCFkaROOFOPCOLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RestrictedCash_019ff179-4f1a-7003-a70f-f99d390555cc_terseLabel_en-US" xlink:label="lab_us-gaap_RestrictedCash" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted cash</link:label>
    <link:label id="lab_us-gaap_RestrictedCash_label_en-US" xlink:label="lab_us-gaap_RestrictedCash" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restricted Cash</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCash" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCash"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RestrictedCash" xlink:to="lab_us-gaap_RestrictedCash" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentIssuerAffiliationAxis_019ff179-4f1a-7a49-b09a-03b94fb99312_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentIssuerAffiliationAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment, Issuer Affiliation [Axis]</link:label>
    <link:label id="lab_us-gaap_InvestmentIssuerAffiliationAxis_label_en-US" xlink:label="lab_us-gaap_InvestmentIssuerAffiliationAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Issuer Affiliation [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIssuerAffiliationAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIssuerAffiliationAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationAxis" xlink:to="lab_us-gaap_InvestmentIssuerAffiliationAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherAssets_019ff179-4e74-700e-bea6-995a094711db_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other assets</link:label>
    <link:label id="lab_us-gaap_OtherAssets_label_en-US" xlink:label="lab_us-gaap_OtherAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherAssets" xlink:to="lab_us-gaap_OtherAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_LegalEntityAxis_019ff179-4e75-7225-9513-81477a436762_terseLabel_en-US" xlink:label="lab_dei_LegalEntityAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Legal Entity [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LegalEntityAxis" xlink:to="lab_dei_LegalEntityAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_S2026Q4DividendsMember_019ff179-4f1a-75c0-8433-7c1c27bc946d_terseLabel_en-US" xlink:label="lab_cswc_S2026Q4DividendsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">S 2026 Q4 Dividends</link:label>
    <link:label id="lab_cswc_S2026Q4DividendsMember_label_en-US" xlink:label="lab_cswc_S2026Q4DividendsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">S 2026 Q4 Dividends [Member]</link:label>
    <link:label id="lab_cswc_S2026Q4DividendsMember_documentation_en-US" xlink:label="lab_cswc_S2026Q4DividendsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S 2026 Q4 Dividends</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_S2026Q4DividendsMember" xlink:href="cswc-20260930.xsd#cswc_S2026Q4DividendsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_S2026Q4DividendsMember" xlink:to="lab_cswc_S2026Q4DividendsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestExpenseDebt_019ff179-4f1b-786a-954f-49da3224649a_totalLabel_en-US" xlink:label="lab_us-gaap_InterestExpenseDebt" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total interest and amortization of deferred financing costs</link:label>
    <link:label id="lab_us-gaap_InterestExpenseDebt_label_en-US" xlink:label="lab_us-gaap_InterestExpenseDebt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Expense, Debt</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseDebt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpenseDebt" xlink:to="lab_us-gaap_InterestExpenseDebt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_WestRegionMember_019ff179-4f1a-7393-a56b-87be7608375a_terseLabel_en-US" xlink:label="lab_us-gaap_WestRegionMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Southwest</link:label>
    <link:label id="lab_us-gaap_WestRegionMember_label_en-US" xlink:label="lab_us-gaap_WestRegionMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">US West Region [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WestRegionMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WestRegionMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WestRegionMember" xlink:to="lab_us-gaap_WestRegionMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019ff179-4f9d-7b85-873b-4f65c4ccc952_periodStartLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Cash, cash equivalents and restricted cash at beginning of period</link:label>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019ff179-4f9d-791d-9a3e-af2d3d4f43ee_periodEndLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Cash, cash equivalents and restricted cash at end of period</link:label>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019ff179-4f9d-742b-b8ce-cc58e52565e3_totalLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total cash, cash equivalents and restricted cash presented in the Consolidated Statements of Cash Flows</link:label>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_label_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ChangeInContractWithCustomerAssetAndLiabilityAbstract_019ff179-4f9d-7447-9604-27a963f85a50_terseLabel_en-US" xlink:label="lab_us-gaap_ChangeInContractWithCustomerAssetAndLiabilityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes in other assets and liabilities:</link:label>
    <link:label id="lab_us-gaap_ChangeInContractWithCustomerAssetAndLiabilityAbstract_label_en-US" xlink:label="lab_us-gaap_ChangeInContractWithCustomerAssetAndLiabilityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Change in Contract with Customer, Asset and Liability [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ChangeInContractWithCustomerAssetAndLiabilityAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ChangeInContractWithCustomerAssetAndLiabilityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ChangeInContractWithCustomerAssetAndLiabilityAbstract" xlink:to="lab_us-gaap_ChangeInContractWithCustomerAssetAndLiabilityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward_019ff179-4f1a-7883-a004-0803721cfddc_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capital loss carryover</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Distributable Earnings (Loss), Accumulated Capital Loss Carryforward</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward" xlink:to="lab_us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_NonNeosMember_terseLabel_en-US" xlink:label="lab_ecd_NonNeosMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-NEOs</link:label>
    <link:label id="lab_ecd_NonNeosMember_label_en-US" xlink:label="lab_ecd_NonNeosMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-NEOs [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonNeosMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_NonNeosMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_NonNeosMember" xlink:to="lab_ecd_NonNeosMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfDebtTableTextBlock_019ff179-4e75-795a-9378-afc22c7bee5e_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfDebtTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Borrowings Outstanding</link:label>
    <link:label id="lab_us-gaap_ScheduleOfDebtTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfDebtTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Debt [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDebtTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfDebtTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfDebtTableTextBlock" xlink:to="lab_us-gaap_ScheduleOfDebtTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_EquityMethodInvesteeNameDomain_019ff179-4f1a-7577-a24f-c9ad24883b84_terseLabel_en-US" xlink:label="lab_srt_EquityMethodInvesteeNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment, Name [Domain]</link:label>
    <link:label id="lab_srt_EquityMethodInvesteeNameDomain_label_en-US" xlink:label="lab_srt_EquityMethodInvesteeNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_EquityMethodInvesteeNameDomain" xlink:to="lab_srt_EquityMethodInvesteeNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_019ff179-4f9d-79c6-8e14-cd1fe8ea0c59_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2028</link:label>
    <link:label id="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_label_en-US" xlink:label="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-Term Debt, Maturity, Year One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:to="lab_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongtermDebtTypeDomain_019ff179-4f1a-7b7e-9168-0ea6fe3cc61f_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-Term Debt, Type [Domain]</link:label>
    <link:label id="lab_us-gaap_LongtermDebtTypeDomain_label_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-Term Debt, Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongtermDebtTypeDomain" xlink:to="lab_us-gaap_LongtermDebtTypeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_MAINLINEBRANDSLLCMember_019ff179-4f1a-7eae-991e-1b15d67f57bd_terseLabel_en-US" xlink:label="lab_cswc_MAINLINEBRANDSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">MAIN LINE BRANDS LLC</link:label>
    <link:label id="lab_cswc_MAINLINEBRANDSLLCMember_label_en-US" xlink:label="lab_cswc_MAINLINEBRANDSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">MAIN LINE BRANDS LLC [Member]</link:label>
    <link:label id="lab_cswc_MAINLINEBRANDSLLCMember_documentation_en-US" xlink:label="lab_cswc_MAINLINEBRANDSLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">MAIN LINE BRANDS LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_MAINLINEBRANDSLLCMember" xlink:href="cswc-20260930.xsd#cswc_MAINLINEBRANDSLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_MAINLINEBRANDSLLCMember" xlink:to="lab_cswc_MAINLINEBRANDSLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquityClassOfTreasuryStockLineItems_019ff179-4f9d-743c-a1e9-987563c5f662_terseLabel_en-US" xlink:label="lab_us-gaap_EquityClassOfTreasuryStockLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity, Class of Treasury Stock [Line Items]</link:label>
    <link:label id="lab_us-gaap_EquityClassOfTreasuryStockLineItems_label_en-US" xlink:label="lab_us-gaap_EquityClassOfTreasuryStockLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity, Class of Treasury Stock [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityClassOfTreasuryStockLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityClassOfTreasuryStockLineItems"/>
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    <link:label id="lab_srt_RangeAxis_label_en-US" xlink:label="lab_srt_RangeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statistical Measurement [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RangeAxis" xlink:to="lab_srt_RangeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_O2027M11TaxYearDividendsMember_01a144f9-2948-7ead-8efb-397f08bfd203_terseLabel_en-US" xlink:label="lab_cswc_O2027M11TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">O 2027 M11 Tax Year Dividends</link:label>
    <link:label id="lab_cswc_O2027M11TaxYearDividendsMember_label_en-US" xlink:label="lab_cswc_O2027M11TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">O 2027 M11 Tax Year Dividends [Member]</link:label>
    <link:label id="lab_cswc_O2027M11TaxYearDividendsMember_documentation_en-US" xlink:label="lab_cswc_O2027M11TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">O 2027 M11 Tax Year Dividends</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_O2027M11TaxYearDividendsMember" xlink:href="cswc-20260930.xsd#cswc_O2027M11TaxYearDividendsMember"/>
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    <link:label id="lab_cswc_FinancialCommitmentRemainderOfFiscalYearMember_019ff179-4f9d-7f19-8b3a-b18d40987673_terseLabel_en-US" xlink:label="lab_cswc_FinancialCommitmentRemainderOfFiscalYearMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2027</link:label>
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    <link:label id="lab_cswc_FinancialCommitmentRemainderOfFiscalYearMember_documentation_en-US" xlink:label="lab_cswc_FinancialCommitmentRemainderOfFiscalYearMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial Commitment Remainder Of Fiscal Year</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_FinancialCommitmentRemainderOfFiscalYearMember" xlink:href="cswc-20260930.xsd#cswc_FinancialCommitmentRemainderOfFiscalYearMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_FinancialCommitmentRemainderOfFiscalYearMember" xlink:to="lab_cswc_FinancialCommitmentRemainderOfFiscalYearMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_APICChangeInRestorationPlanLiability_019ff179-4f1a-7e33-bb36-bc4049a0463b_terseLabel_en-US" xlink:label="lab_cswc_APICChangeInRestorationPlanLiability" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Change in restoration plan liability</link:label>
    <link:label id="lab_cswc_APICChangeInRestorationPlanLiability_label_en-US" xlink:label="lab_cswc_APICChangeInRestorationPlanLiability" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">APIC, Change In Restoration Plan Liability</link:label>
    <link:label id="lab_cswc_APICChangeInRestorationPlanLiability_documentation_en-US" xlink:label="lab_cswc_APICChangeInRestorationPlanLiability" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">APIC, Change In Restoration Plan Liability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_APICChangeInRestorationPlanLiability" xlink:href="cswc-20260930.xsd#cswc_APICChangeInRestorationPlanLiability"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_APICChangeInRestorationPlanLiability" xlink:to="lab_cswc_APICChangeInRestorationPlanLiability" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AwardTypeAxis_019ff179-4e75-7f5c-a644-0d935c7c6fae_terseLabel_en-US" xlink:label="lab_us-gaap_AwardTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Award Type [Axis]</link:label>
    <link:label id="lab_us-gaap_AwardTypeAxis_label_en-US" xlink:label="lab_us-gaap_AwardTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AwardTypeAxis" xlink:to="lab_us-gaap_AwardTypeAxis" xlink:type="arc" order="1"/>
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    <link:label id="lab_ecd_NamedExecutiveOfficersFnTextBlock_label_en-US" xlink:label="lab_ecd_NamedExecutiveOfficersFnTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Named Executive Officers, Footnote [Text Block]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_NamedExecutiveOfficersFnTextBlock" xlink:to="lab_ecd_NamedExecutiveOfficersFnTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNet_019ff179-4f9d-7adb-8f15-e50c4e8d2ba3_terseLabel_en-US" xlink:label="lab_us-gaap_TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net unrealized appreciation (depreciation)</link:label>
    <link:label id="lab_us-gaap_TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNet_label_en-US" xlink:label="lab_us-gaap_TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Tax Basis, Unrealized Gain (Loss)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNet" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNet" xlink:to="lab_us-gaap_TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNet" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_019ff179-4f1a-72da-ab35-651815a3ef9b_terseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total distributable (loss) earnings</link:label>
    <link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_label_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retained Earnings (Accumulated Deficit)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="lab_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NortheastRegionMember_019ff179-4f1a-78c5-9d4f-382fd4876c1b_terseLabel_en-US" xlink:label="lab_us-gaap_NortheastRegionMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Northeast</link:label>
    <link:label id="lab_us-gaap_NortheastRegionMember_label_en-US" xlink:label="lab_us-gaap_NortheastRegionMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">US Northeast Region [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NortheastRegionMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NortheastRegionMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NortheastRegionMember" xlink:to="lab_us-gaap_NortheastRegionMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleThresholdTradingDays_019ff179-4f1a-70b8-a0bf-b1b8bf410c6e_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleThresholdTradingDays" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trading days</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleThresholdTradingDays_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleThresholdTradingDays" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Convertible, Threshold Trading Days</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdTradingDays" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentConvertibleThresholdTradingDays"/>
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    <link:label id="lab_cswc_EquityATMProgramMember_019ff179-4f9d-7ced-9742-d566a00ae8e8_terseLabel_en-US" xlink:label="lab_cswc_EquityATMProgramMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity ATM Program</link:label>
    <link:label id="lab_cswc_EquityATMProgramMember_label_en-US" xlink:label="lab_cswc_EquityATMProgramMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity ATM Program [Member]</link:label>
    <link:label id="lab_cswc_EquityATMProgramMember_documentation_en-US" xlink:label="lab_cswc_EquityATMProgramMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Equity ATM Program</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_EquityATMProgramMember" xlink:href="cswc-20260930.xsd#cswc_EquityATMProgramMember"/>
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    <link:label id="lab_us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingAfterTax_019ff179-4f9d-7b32-bd90-3280680f6817_totalLabel_en-US" xlink:label="lab_us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingAfterTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total net realized gain (loss) on investments, net of tax</link:label>
    <link:label id="lab_us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingAfterTax_019ff179-4f9d-7d9d-8b49-dbdf8066f27f_terseLabel_en-US" xlink:label="lab_us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingAfterTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net realized gain (loss) on investments, net of tax</link:label>
    <link:label id="lab_us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingAfterTax_label_en-US" xlink:label="lab_us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingAfterTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Realized Gain (Loss), Investment and Derivative, Operating, after Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingAfterTax" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingAfterTax"/>
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    <link:label id="lab_ecd_AwardsCloseToMnpiDiscTable_terseLabel_en-US" xlink:label="lab_ecd_AwardsCloseToMnpiDiscTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Awards Close in Time to MNPI Disclosures</link:label>
    <link:label id="lab_ecd_AwardsCloseToMnpiDiscTable_label_en-US" xlink:label="lab_ecd_AwardsCloseToMnpiDiscTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Awards Close in Time to MNPI Disclosures [Table]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AwardsCloseToMnpiDiscTable" xlink:to="lab_ecd_AwardsCloseToMnpiDiscTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockMember_019ff179-4e75-7841-ac07-ec660b7b03b2_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common Stock</link:label>
    <link:label id="lab_us-gaap_CommonStockMember_label_en-US" xlink:label="lab_us-gaap_CommonStockMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember"/>
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    <link:label id="lab_cswc_SaleOfStockConsiderationReceivable_019ff179-4e75-7866-bb60-95b10723466b_terseLabel_en-US" xlink:label="lab_cswc_SaleOfStockConsiderationReceivable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Remaining receivable</link:label>
    <link:label id="lab_cswc_SaleOfStockConsiderationReceivable_label_en-US" xlink:label="lab_cswc_SaleOfStockConsiderationReceivable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale of Stock, Consideration Receivable</link:label>
    <link:label id="lab_cswc_SaleOfStockConsiderationReceivable_documentation_en-US" xlink:label="lab_cswc_SaleOfStockConsiderationReceivable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sale of Stock, Consideration Receivable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SaleOfStockConsiderationReceivable" xlink:href="cswc-20260930.xsd#cswc_SaleOfStockConsiderationReceivable"/>
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    <link:label id="lab_us-gaap_NonUsMember_019ff179-4f1a-7c2e-af7f-0805cb9a0772_terseLabel_en-US" xlink:label="lab_us-gaap_NonUsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">International</link:label>
    <link:label id="lab_us-gaap_NonUsMember_label_en-US" xlink:label="lab_us-gaap_NonUsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-US [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonUsMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NonUsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NonUsMember" xlink:to="lab_us-gaap_NonUsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingAfterTax_019ff179-4f1a-7d01-9ead-49600cee61e2_totalLabel_en-US" xlink:label="lab_us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingAfterTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total net unrealized (depreciation) appreciation on investments, net of tax</link:label>
    <link:label id="lab_us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingAfterTax_019ff179-4f1a-7e48-a7ba-996557121367_netLabel_en-US" xlink:label="lab_us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingAfterTax" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Net unrealized depreciation on investments, net of tax</link:label>
    <link:label id="lab_us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingAfterTax_019ff179-4f1a-7df0-94cb-99bd01f0f5de_terseLabel_en-US" xlink:label="lab_us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingAfterTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net unrealized appreciation</link:label>
    <link:label id="lab_us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingAfterTax_label_en-US" xlink:label="lab_us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingAfterTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unrealized Gain (Loss), Investment and Derivative, Operating, after Tax</link:label>
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    <link:label id="lab_cswc_GRAVITIQLLCMember_label_en-US" xlink:label="lab_cswc_GRAVITIQLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">GRAVITIQ LLC [Member]</link:label>
    <link:label id="lab_cswc_GRAVITIQLLCMember_documentation_en-US" xlink:label="lab_cswc_GRAVITIQLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">GRAVITIQ LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_GRAVITIQLLCMember" xlink:href="cswc-20260930.xsd#cswc_GRAVITIQLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_GRAVITIQLLCMember" xlink:to="lab_cswc_GRAVITIQLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestExpenseDebtExcludingAmortization_019ff179-4f1a-7e37-bd8a-adc4da583dd9_terseLabel_en-US" xlink:label="lab_us-gaap_InterestExpenseDebtExcludingAmortization" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest expense</link:label>
    <link:label id="lab_us-gaap_InterestExpenseDebtExcludingAmortization_label_en-US" xlink:label="lab_us-gaap_InterestExpenseDebtExcludingAmortization" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Expense, Debt, Excluding Amortization</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebtExcludingAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseDebtExcludingAmortization"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpenseDebtExcludingAmortization" xlink:to="lab_us-gaap_InterestExpenseDebtExcludingAmortization" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ConcentrationRiskByBenchmarkAxis_019ff179-4f9d-7fee-9c35-747d02756fd6_terseLabel_en-US" xlink:label="lab_us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Concentration Risk Benchmark [Axis]</link:label>
    <link:label id="lab_us-gaap_ConcentrationRiskByBenchmarkAxis_label_en-US" xlink:label="lab_us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Concentration Risk Benchmark [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:to="lab_us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeContractTypeDomain_01a10bf5-5e1f-7eda-bf01-15c9816af65a_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeContractTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative Contract [Domain]</link:label>
    <link:label id="lab_us-gaap_DerivativeContractTypeDomain_label_en-US" xlink:label="lab_us-gaap_DerivativeContractTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Contract [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeContractTypeDomain" xlink:to="lab_us-gaap_DerivativeContractTypeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ConvertibleDebtTableTextBlock_019ff179-4f1b-7c52-87e9-e3ef89b4320d_terseLabel_en-US" xlink:label="lab_us-gaap_ConvertibleDebtTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Convertible Debt</link:label>
    <link:label id="lab_us-gaap_ConvertibleDebtTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ConvertibleDebtTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Convertible Debt [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConvertibleDebtTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConvertibleDebtTableTextBlock" xlink:to="lab_us-gaap_ConvertibleDebtTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_LDGACQUISITIONCOMPANYLLCMember_019ff179-4e75-75ff-a180-8b582f79c0b5_terseLabel_en-US" xlink:label="lab_cswc_LDGACQUISITIONCOMPANYLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">LDG ACQUISITION COMPANY, LLC</link:label>
    <link:label id="lab_cswc_LDGACQUISITIONCOMPANYLLCMember_label_en-US" xlink:label="lab_cswc_LDGACQUISITIONCOMPANYLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">LDG ACQUISITION COMPANY, LLC [Member]</link:label>
    <link:label id="lab_cswc_LDGACQUISITIONCOMPANYLLCMember_documentation_en-US" xlink:label="lab_cswc_LDGACQUISITIONCOMPANYLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">LDG ACQUISITION COMPANY, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_LDGACQUISITIONCOMPANYLLCMember" xlink:href="cswc-20260930.xsd#cswc_LDGACQUISITIONCOMPANYLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_LDGACQUISITIONCOMPANYLLCMember" xlink:to="lab_cswc_LDGACQUISITIONCOMPANYLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_019ff179-4f9d-71e4-bcca-c25e554c2575_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total liabilities and net assets</link:label>
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities and Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RealizedInvestmentGainsLosses_019ff179-4f9d-70bf-86e8-4c2c7593a3a0_negatedLabel_en-US" xlink:label="lab_us-gaap_RealizedInvestmentGainsLosses" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Realized gain on investments before income tax</link:label>
    <link:label id="lab_us-gaap_RealizedInvestmentGainsLosses_label_en-US" xlink:label="lab_us-gaap_RealizedInvestmentGainsLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Realized Investment Gains (Losses)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealizedInvestmentGainsLosses" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RealizedInvestmentGainsLosses"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RealizedInvestmentGainsLosses" xlink:to="lab_us-gaap_RealizedInvestmentGainsLosses" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EmployeeStockOptionMember_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeStockOptionMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employee Stock Option</link:label>
    <link:label id="lab_us-gaap_EmployeeStockOptionMember_label_en-US" xlink:label="lab_us-gaap_EmployeeStockOptionMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Payment Arrangement, Option [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeStockOptionMember" xlink:to="lab_us-gaap_EmployeeStockOptionMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases_019ff179-4f9d-7f99-b738-d9ab759d5b65_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Purchases of Investments</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" xlink:to="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_Additional402vDisclosureTextBlock_terseLabel_en-US" xlink:label="lab_ecd_Additional402vDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additional 402(v) Disclosure</link:label>
    <link:label id="lab_ecd_Additional402vDisclosureTextBlock_label_en-US" xlink:label="lab_ecd_Additional402vDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional 402(v) Disclosure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_Additional402vDisclosureTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_Additional402vDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_Additional402vDisclosureTextBlock" xlink:to="lab_ecd_Additional402vDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueByAssetClassAxis_019ff179-4e75-7d86-ae7f-119633094bfb_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByAssetClassAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Asset Class [Axis]</link:label>
    <link:label id="lab_us-gaap_FairValueByAssetClassAxis_label_en-US" xlink:label="lab_us-gaap_FairValueByAssetClassAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Asset Class [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByAssetClassAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByAssetClassAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByAssetClassAxis" xlink:to="lab_us-gaap_FairValueByAssetClassAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_VTXHOLDINGSINC.EquityInvestmentsMember_019ff179-4e74-7141-8fef-57c09fc8c8ac_terseLabel_en-US" xlink:label="lab_cswc_VTXHOLDINGSINC.EquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">VTX HOLDINGS, INC.</link:label>
    <link:label id="lab_cswc_VTXHOLDINGSINC.EquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_VTXHOLDINGSINC.EquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">VTX HOLDINGS, INC., Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_VTXHOLDINGSINC.EquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_VTXHOLDINGSINC.EquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">VTX HOLDINGS, INC., Equity Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_VTXHOLDINGSINC.EquityInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_VTXHOLDINGSINC.EquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_VTXHOLDINGSINC.EquityInvestmentsMember" xlink:to="lab_cswc_VTXHOLDINGSINC.EquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyDomain_019ff179-4f9d-7753-9bf5-f2b35b789b3b_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Related Party [Domain]</link:label>
    <link:label id="lab_us-gaap_RelatedPartyDomain_label_en-US" xlink:label="lab_us-gaap_RelatedPartyDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Related and Nonrelated Parties [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="lab_us-gaap_RelatedPartyDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_BeforeApril202024Member_019ff179-4e74-7aee-bbba-319e745cbc4a_terseLabel_en-US" xlink:label="lab_cswc_BeforeApril202024Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Before April 20 2024</link:label>
    <link:label id="lab_cswc_BeforeApril202024Member_label_en-US" xlink:label="lab_cswc_BeforeApril202024Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Before April 20 2024 [Member]</link:label>
    <link:label id="lab_cswc_BeforeApril202024Member_documentation_en-US" xlink:label="lab_cswc_BeforeApril202024Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Before April 20 2024</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_BeforeApril202024Member" xlink:href="cswc-20260930.xsd#cswc_BeforeApril202024Member"/>
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    <link:label id="lab_cswc_InvestmentIncomeOperatingDeferredTaxes_019ff179-4f9d-7f6b-b8fb-e686adc7a4af_terseLabel_en-US" xlink:label="lab_cswc_InvestmentIncomeOperatingDeferredTaxes" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred taxes</link:label>
    <link:label id="lab_cswc_InvestmentIncomeOperatingDeferredTaxes_label_en-US" xlink:label="lab_cswc_InvestmentIncomeOperatingDeferredTaxes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Income, Operating, Deferred Taxes</link:label>
    <link:label id="lab_cswc_InvestmentIncomeOperatingDeferredTaxes_documentation_en-US" xlink:label="lab_cswc_InvestmentIncomeOperatingDeferredTaxes" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Income, Operating, Deferred Taxes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentIncomeOperatingDeferredTaxes" xlink:href="cswc-20260930.xsd#cswc_InvestmentIncomeOperatingDeferredTaxes"/>
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    <link:label id="lab_ecd_TabularListTableTextBlock_terseLabel_en-US" xlink:label="lab_ecd_TabularListTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tabular List, Table</link:label>
    <link:label id="lab_ecd_TabularListTableTextBlock_label_en-US" xlink:label="lab_ecd_TabularListTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tabular List [Table Text Block]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_TabularListTableTextBlock" xlink:to="lab_ecd_TabularListTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AdditionalPaidInCapital_019ff179-4f1a-7bcf-8f2c-6aa0ac2f1421_terseLabel_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapital" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additional paid-in capital</link:label>
    <link:label id="lab_us-gaap_AdditionalPaidInCapital_label_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapital" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional Paid in Capital</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdditionalPaidInCapital" xlink:to="lab_us-gaap_AdditionalPaidInCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_A2029ConvertibleNotesOverallotementMember_019ff179-4f1a-7cab-9422-b625bff7dba6_terseLabel_en-US" xlink:label="lab_cswc_A2029ConvertibleNotesOverallotementMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2029 Convertible Notes Overallotement</link:label>
    <link:label id="lab_cswc_A2029ConvertibleNotesOverallotementMember_label_en-US" xlink:label="lab_cswc_A2029ConvertibleNotesOverallotementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">2029 Convertible Notes Overallotement [Member]</link:label>
    <link:label id="lab_cswc_A2029ConvertibleNotesOverallotementMember_documentation_en-US" xlink:label="lab_cswc_A2029ConvertibleNotesOverallotementMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">2029 Convertible Notes Overallotement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_A2029ConvertibleNotesOverallotementMember" xlink:href="cswc-20260930.xsd#cswc_A2029ConvertibleNotesOverallotementMember"/>
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    <link:label id="lab_us-gaap_TransportationSectorMember_019ff179-4f1a-7d2b-8e3b-550f29eb4f59_terseLabel_en-US" xlink:label="lab_us-gaap_TransportationSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Transportation &amp; Logistics</link:label>
    <link:label id="lab_us-gaap_TransportationSectorMember_label_en-US" xlink:label="lab_us-gaap_TransportationSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transportation Sector [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransportationSectorMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TransportationSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TransportationSectorMember" xlink:to="lab_us-gaap_TransportationSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_BRANDNERDESIGNLLCMember_019ff179-4f1b-7e7e-8720-24296ea401f7_terseLabel_en-US" xlink:label="lab_cswc_BRANDNERDESIGNLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">BRANDNER DESIGN, LLC</link:label>
    <link:label id="lab_cswc_BRANDNERDESIGNLLCMember_label_en-US" xlink:label="lab_cswc_BRANDNERDESIGNLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">BRANDNER DESIGN, LLC [Member]</link:label>
    <link:label id="lab_cswc_BRANDNERDESIGNLLCMember_documentation_en-US" xlink:label="lab_cswc_BRANDNERDESIGNLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Brandner design, llc</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_BRANDNERDESIGNLLCMember" xlink:href="cswc-20260930.xsd#cswc_BRANDNERDESIGNLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_BRANDNERDESIGNLLCMember" xlink:to="lab_cswc_BRANDNERDESIGNLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities_019ff179-4f9d-7757-b541-1dfb830922b2_terseLabel_en-US" xlink:label="lab_us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustment for dilutive effect of 2029 Convertible Notes</link:label>
    <link:label id="lab_us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities_label_en-US" xlink:label="lab_us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities" xlink:to="lab_us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AwardsCloseToMnpiDiscIndName_terseLabel_en-US" xlink:label="lab_ecd_AwardsCloseToMnpiDiscIndName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Name</link:label>
    <link:label id="lab_ecd_AwardsCloseToMnpiDiscIndName_label_en-US" xlink:label="lab_ecd_AwardsCloseToMnpiDiscIndName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Awards Close in Time to MNPI Disclosures, Individual Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardsCloseToMnpiDiscIndName" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardsCloseToMnpiDiscIndName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AwardsCloseToMnpiDiscIndName" xlink:to="lab_ecd_AwardsCloseToMnpiDiscIndName" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LineOfCreditFacilityAverageOutstandingAmount_019ff179-4e75-7313-b13c-ba8052b967e3_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityAverageOutstandingAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Average borrowings</link:label>
    <link:label id="lab_us-gaap_LineOfCreditFacilityAverageOutstandingAmount_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityAverageOutstandingAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Line of Credit Facility, Average Outstanding Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityAverageOutstandingAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityAverageOutstandingAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LineOfCreditFacilityAverageOutstandingAmount" xlink:to="lab_us-gaap_LineOfCreditFacilityAverageOutstandingAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentIdentifierAxis_019ff179-4f1a-7f2f-bcb9-3a7b969438d6_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentIdentifierAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment, Identifier [Axis]</link:label>
    <link:label id="lab_us-gaap_InvestmentIdentifierAxis_label_en-US" xlink:label="lab_us-gaap_InvestmentIdentifierAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Identifier [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIdentifierAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIdentifierAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentIdentifierAxis" xlink:to="lab_us-gaap_InvestmentIdentifierAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember_terseLabel_en-US" xlink:label="lab_ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested</link:label>
    <link:label id="lab_ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember_label_en-US" xlink:label="lab_ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember" xlink:to="lab_ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DebtCommitmentsMember_019ff179-4e74-7e4e-b8eb-82b505936fea_terseLabel_en-US" xlink:label="lab_cswc_DebtCommitmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total Unfunded Debt Commitments</link:label>
    <link:label id="lab_cswc_DebtCommitmentsMember_label_en-US" xlink:label="lab_cswc_DebtCommitmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Commitments [Member]</link:label>
    <link:label id="lab_cswc_DebtCommitmentsMember_documentation_en-US" xlink:label="lab_cswc_DebtCommitmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Commitments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DebtCommitmentsMember" xlink:href="cswc-20260930.xsd#cswc_DebtCommitmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DebtCommitmentsMember" xlink:to="lab_cswc_DebtCommitmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DeferredTaxAssetsGrossAbstract_019ff179-4f9d-7269-8ca2-e12f5320f58a_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsGrossAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax asset:</link:label>
    <link:label id="lab_us-gaap_DeferredTaxAssetsGrossAbstract_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsGrossAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Assets, Gross [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGrossAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredTaxAssetsGrossAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsGrossAbstract" xlink:to="lab_us-gaap_DeferredTaxAssetsGrossAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DeferredTaxAssetInterestCarryforward_019ff179-4f9d-75ce-a52c-621dd218e103_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetInterestCarryforward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest</link:label>
    <link:label id="lab_us-gaap_DeferredTaxAssetInterestCarryforward_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetInterestCarryforward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Asset, Interest Carryforward</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetInterestCarryforward" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredTaxAssetInterestCarryforward"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetInterestCarryforward" xlink:to="lab_us-gaap_DeferredTaxAssetInterestCarryforward" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_MarketApproachValuationTechniqueMember_019ff179-4f1a-74f7-8c75-13a79f65ee66_terseLabel_en-US" xlink:label="lab_us-gaap_MarketApproachValuationTechniqueMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Market Approach</link:label>
    <link:label id="lab_us-gaap_MarketApproachValuationTechniqueMember_label_en-US" xlink:label="lab_us-gaap_MarketApproachValuationTechniqueMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Valuation, Market Approach [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketApproachValuationTechniqueMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MarketApproachValuationTechniqueMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MarketApproachValuationTechniqueMember" xlink:to="lab_us-gaap_MarketApproachValuationTechniqueMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ff179-4e74-71a1-937b-dc91308cb8b4_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-Lived Asset, Class [Domain]</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-Lived Asset, Class [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ADFENGINEERINGLLCMember_019ff179-4f9d-7543-8e5d-6e766759555b_terseLabel_en-US" xlink:label="lab_cswc_ADFENGINEERINGLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ADF ENGINEERING LLC</link:label>
    <link:label id="lab_cswc_ADFENGINEERINGLLCMember_label_en-US" xlink:label="lab_cswc_ADFENGINEERINGLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ADF ENGINEERING LLC [Member]</link:label>
    <link:label id="lab_cswc_ADFENGINEERINGLLCMember_documentation_en-US" xlink:label="lab_cswc_ADFENGINEERINGLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ADF ENGINEERING LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ADFENGINEERINGLLCMember" xlink:href="cswc-20260930.xsd#cswc_ADFENGINEERINGLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ADFENGINEERINGLLCMember" xlink:to="lab_cswc_ADFENGINEERINGLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AdjToCompAxis_terseLabel_en-US" xlink:label="lab_ecd_AdjToCompAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustment to Compensation:</link:label>
    <link:label id="lab_ecd_AdjToCompAxis_label_en-US" xlink:label="lab_ecd_AdjToCompAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustment to Compensation [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AdjToCompAxis" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AdjToCompAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AdjToCompAxis" xlink:to="lab_ecd_AdjToCompAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentOwnedPercentOfPortfolio_019ff179-4f9d-743c-b129-68d85bb22767_terseLabel_en-US" xlink:label="lab_cswc_InvestmentOwnedPercentOfPortfolio" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percent of investment assets</link:label>
    <link:label id="lab_cswc_InvestmentOwnedPercentOfPortfolio_label_en-US" xlink:label="lab_cswc_InvestmentOwnedPercentOfPortfolio" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Owned, Percent Of Portfolio</link:label>
    <link:label id="lab_cswc_InvestmentOwnedPercentOfPortfolio_documentation_en-US" xlink:label="lab_cswc_InvestmentOwnedPercentOfPortfolio" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Owned, Percent Of Portfolio</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentOwnedPercentOfPortfolio" xlink:href="cswc-20260930.xsd#cswc_InvestmentOwnedPercentOfPortfolio"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentOwnedPercentOfPortfolio" xlink:to="lab_cswc_InvestmentOwnedPercentOfPortfolio" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_NGPROBOOPCOLLCMember_019ff179-4f9d-7970-a21b-2cf59bf27c38_terseLabel_en-US" xlink:label="lab_cswc_NGPROBOOPCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">NGP ROBO OPCO, LLC</link:label>
    <link:label id="lab_cswc_NGPROBOOPCOLLCMember_label_en-US" xlink:label="lab_cswc_NGPROBOOPCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">NGP ROBO OPCO, LLC [Member]</link:label>
    <link:label id="lab_cswc_NGPROBOOPCOLLCMember_documentation_en-US" xlink:label="lab_cswc_NGPROBOOPCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">NGP ROBO OPCO, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_NGPROBOOPCOLLCMember" xlink:href="cswc-20260930.xsd#cswc_NGPROBOOPCOLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_NGPROBOOPCOLLCMember" xlink:to="lab_cswc_NGPROBOOPCOLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_CreditFacilityMember_label_en-US" xlink:label="lab_cswc_CreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Credit Facility [Member]</link:label>
    <link:label id="lab_cswc_CreditFacilityMember_documentation_en-US" xlink:label="lab_cswc_CreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Credit Facility</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CreditFacilityMember" xlink:href="cswc-20260930.xsd#cswc_CreditFacilityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_CreditFacilityMember" xlink:to="lab_cswc_CreditFacilityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CreditConcentrationRiskMember_019ff179-4f9d-7cd9-8d27-077825391530_terseLabel_en-US" xlink:label="lab_us-gaap_CreditConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit risk</link:label>
    <link:label id="lab_us-gaap_CreditConcentrationRiskMember_label_en-US" xlink:label="lab_us-gaap_CreditConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Credit Concentration Risk [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditConcentrationRiskMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditConcentrationRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CreditConcentrationRiskMember" xlink:to="lab_us-gaap_CreditConcentrationRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_Rule10b51ArrTrmntdFlag_terseLabel_en-US" xlink:label="lab_ecd_Rule10b51ArrTrmntdFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Rule 10b5-1 Arrangement Terminated</link:label>
    <link:label id="lab_ecd_Rule10b51ArrTrmntdFlag_label_en-US" xlink:label="lab_ecd_Rule10b51ArrTrmntdFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Rule 10b5-1 Arrangement Terminated [Flag]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_Rule10b51ArrTrmntdFlag" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_Rule10b51ArrTrmntdFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_Rule10b51ArrTrmntdFlag" xlink:to="lab_ecd_Rule10b51ArrTrmntdFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AggtErrCompAmt_terseLabel_en-US" xlink:label="lab_ecd_AggtErrCompAmt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Aggregate Erroneous Compensation Amount</link:label>
    <link:label id="lab_ecd_AggtErrCompAmt_label_en-US" xlink:label="lab_ecd_AggtErrCompAmt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aggregate Erroneous Compensation Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AggtErrCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AggtErrCompAmt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AggtErrCompAmt" xlink:to="lab_ecd_AggtErrCompAmt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestPaidNet_019ff179-4f9d-70c5-920a-f4e87acb2e91_terseLabel_en-US" xlink:label="lab_us-gaap_InterestPaidNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash paid for interest</link:label>
    <link:label id="lab_us-gaap_InterestPaidNet_label_en-US" xlink:label="lab_us-gaap_InterestPaidNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Paid, Excluding Capitalized Interest, Operating Activity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPaidNet" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestPaidNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestPaidNet" xlink:to="lab_us-gaap_InterestPaidNet" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic_019ff179-4e75-7a28-a32e-023dfcf1f83d_terseLabel_en-US" xlink:label="lab_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustment for income allocated to participating securities</link:label>
    <link:label id="lab_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic_label_en-US" xlink:label="lab_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Undistributed Earnings (Loss) Allocated to Participating Securities, Basic</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic" xlink:to="lab_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CreditFacilityAxis_019ff179-4f1a-76f5-b223-47777d875c06_terseLabel_en-US" xlink:label="lab_us-gaap_CreditFacilityAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit Facility [Axis]</link:label>
    <link:label id="lab_us-gaap_CreditFacilityAxis_label_en-US" xlink:label="lab_us-gaap_CreditFacilityAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Credit Facility [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CreditFacilityAxis" xlink:to="lab_us-gaap_CreditFacilityAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_MAMMOTHBORROWCOINC.EquityInvestmentsMember_019ff179-4f9d-7b20-b90c-f53da7ce3ae4_terseLabel_en-US" xlink:label="lab_cswc_MAMMOTHBORROWCOINC.EquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">MAMMOTH BORROWCO, INC.</link:label>
    <link:label id="lab_cswc_MAMMOTHBORROWCOINC.EquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_MAMMOTHBORROWCOINC.EquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">MAMMOTH BORROWCO, INC., Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_MAMMOTHBORROWCOINC.EquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_MAMMOTHBORROWCOINC.EquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">MAMMOTH BORROWCO, INC., Equity Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_MAMMOTHBORROWCOINC.EquityInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_MAMMOTHBORROWCOINC.EquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_MAMMOTHBORROWCOINC.EquityInvestmentsMember" xlink:to="lab_cswc_MAMMOTHBORROWCOINC.EquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ConsumerProductsServicesMember_01a1449a-4044-7edb-9a4f-9ee8000f85a6_terseLabel_en-US" xlink:label="lab_cswc_ConsumerProductsServicesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consumer Products &amp; Services</link:label>
    <link:label id="lab_cswc_ConsumerProductsServicesMember_label_en-US" xlink:label="lab_cswc_ConsumerProductsServicesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consumer Products &amp; Services [Member]</link:label>
    <link:label id="lab_cswc_ConsumerProductsServicesMember_documentation_en-US" xlink:label="lab_cswc_ConsumerProductsServicesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Consumer Products &amp; Services</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ConsumerProductsServicesMember" xlink:href="cswc-20260930.xsd#cswc_ConsumerProductsServicesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ConsumerProductsServicesMember" xlink:to="lab_cswc_ConsumerProductsServicesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SERVERLIFTLLCMember_019ff179-4f9d-7fca-84a3-a1d7c78b6db7_terseLabel_en-US" xlink:label="lab_cswc_SERVERLIFTLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SERVERLIFT, LLC</link:label>
    <link:label id="lab_cswc_SERVERLIFTLLCMember_label_en-US" xlink:label="lab_cswc_SERVERLIFTLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">SERVERLIFT, LLC [Member]</link:label>
    <link:label id="lab_cswc_SERVERLIFTLLCMember_documentation_en-US" xlink:label="lab_cswc_SERVERLIFTLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">SERVERLIFT, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SERVERLIFTLLCMember" xlink:href="cswc-20260930.xsd#cswc_SERVERLIFTLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SERVERLIFTLLCMember" xlink:to="lab_cswc_SERVERLIFTLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_MYNTSHOLDINGSLLCMember_019ff179-4f9d-7316-89cd-7d293989787f_terseLabel_en-US" xlink:label="lab_cswc_MYNTSHOLDINGSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">MYNTS HOLDINGS, LLC</link:label>
    <link:label id="lab_cswc_MYNTSHOLDINGSLLCMember_label_en-US" xlink:label="lab_cswc_MYNTSHOLDINGSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">MYNTS HOLDINGS, LLC [Member]</link:label>
    <link:label id="lab_cswc_MYNTSHOLDINGSLLCMember_documentation_en-US" xlink:label="lab_cswc_MYNTSHOLDINGSLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">MYNTS HOLDINGS, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_MYNTSHOLDINGSLLCMember" xlink:href="cswc-20260930.xsd#cswc_MYNTSHOLDINGSLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_MYNTSHOLDINGSLLCMember" xlink:to="lab_cswc_MYNTSHOLDINGSLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_MeasureName_terseLabel_en-US" xlink:label="lab_ecd_MeasureName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Name</link:label>
    <link:label id="lab_ecd_MeasureName_label_en-US" xlink:label="lab_ecd_MeasureName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measure Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_MeasureName" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_MeasureName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_MeasureName" xlink:to="lab_ecd_MeasureName" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_EXACTBORROWERLLCMember_019ff179-4e75-75b1-be6b-8c11e57c32d9_terseLabel_en-US" xlink:label="lab_cswc_EXACTBORROWERLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">EXACT BORROWER, LLC</link:label>
    <link:label id="lab_cswc_EXACTBORROWERLLCMember_label_en-US" xlink:label="lab_cswc_EXACTBORROWERLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">EXACT BORROWER, LLC [Member]</link:label>
    <link:label id="lab_cswc_EXACTBORROWERLLCMember_documentation_en-US" xlink:label="lab_cswc_EXACTBORROWERLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">EXACT BORROWER, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_EXACTBORROWERLLCMember" xlink:href="cswc-20260930.xsd#cswc_EXACTBORROWERLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_EXACTBORROWERLLCMember" xlink:to="lab_cswc_EXACTBORROWERLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_PayVsPerformanceDisclosureLineItems_label_en-US" xlink:label="lab_ecd_PayVsPerformanceDisclosureLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pay vs Performance Disclosure [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PayVsPerformanceDisclosureLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="lab_ecd_PayVsPerformanceDisclosureLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ff179-4f9d-7b2b-90dc-e61048638048_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value Hierarchy and NAV [Domain]</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Hierarchy and NAV [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentLineItems_019ff179-4e75-73a7-8842-2e0c39882b43_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument [Line Items]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentLineItems_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="lab_us-gaap_DebtInstrumentLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentOwnedCostMember_019ff179-4f9d-7e14-8ed7-167b2cc506d3_terseLabel_en-US" xlink:label="lab_cswc_InvestmentOwnedCostMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of Total&#160;Portfolio at Cost</link:label>
    <link:label id="lab_cswc_InvestmentOwnedCostMember_label_en-US" xlink:label="lab_cswc_InvestmentOwnedCostMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Owned, Cost [Member]</link:label>
    <link:label id="lab_cswc_InvestmentOwnedCostMember_documentation_en-US" xlink:label="lab_cswc_InvestmentOwnedCostMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Owned, Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentOwnedCostMember" xlink:href="cswc-20260930.xsd#cswc_InvestmentOwnedCostMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentOwnedCostMember" xlink:to="lab_cswc_InvestmentOwnedCostMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_TMTBHCBUYERINC.Member_019ff179-4e74-7d7b-87c1-50aeae097bb0_terseLabel_en-US" xlink:label="lab_cswc_TMTBHCBUYERINC.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">TMT BHC BUYER, INC.</link:label>
    <link:label id="lab_cswc_TMTBHCBUYERINC.Member_label_en-US" xlink:label="lab_cswc_TMTBHCBUYERINC.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">TMT BHC BUYER, INC. [Member]</link:label>
    <link:label id="lab_cswc_TMTBHCBUYERINC.Member_documentation_en-US" xlink:label="lab_cswc_TMTBHCBUYERINC.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">TMT BHC BUYER, INC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_TMTBHCBUYERINC.Member" xlink:href="cswc-20260930.xsd#cswc_TMTBHCBUYERINC.Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_TMTBHCBUYERINC.Member" xlink:to="lab_cswc_TMTBHCBUYERINC.Member" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SUPERIORHEALTHPARENTLLCMember_019ff179-4f1b-772f-a0df-cf192c822eb0_terseLabel_en-US" xlink:label="lab_cswc_SUPERIORHEALTHPARENTLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SUPERIOR HEALTH PARENT LLC</link:label>
    <link:label id="lab_cswc_SUPERIORHEALTHPARENTLLCMember_label_en-US" xlink:label="lab_cswc_SUPERIORHEALTHPARENTLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">SUPERIOR HEALTH PARENT LLC [Member]</link:label>
    <link:label id="lab_cswc_SUPERIORHEALTHPARENTLLCMember_documentation_en-US" xlink:label="lab_cswc_SUPERIORHEALTHPARENTLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">SUPERIOR HEALTH PARENT LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SUPERIORHEALTHPARENTLLCMember" xlink:href="cswc-20260930.xsd#cswc_SUPERIORHEALTHPARENTLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SUPERIORHEALTHPARENTLLCMember" xlink:to="lab_cswc_SUPERIORHEALTHPARENTLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_S2027Q1DividendsMember_019ff179-4e75-7d6a-a89e-65d0c0e2026b_terseLabel_en-US" xlink:label="lab_cswc_S2027Q1DividendsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">S 2027 Q1 Dividends</link:label>
    <link:label id="lab_cswc_S2027Q1DividendsMember_label_en-US" xlink:label="lab_cswc_S2027Q1DividendsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">S 2027 Q1 Dividends [Member]</link:label>
    <link:label id="lab_cswc_S2027Q1DividendsMember_documentation_en-US" xlink:label="lab_cswc_S2027Q1DividendsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S 2027 Q1 Dividends</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_S2027Q1DividendsMember" xlink:href="cswc-20260930.xsd#cswc_S2027Q1DividendsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_S2027Q1DividendsMember" xlink:to="lab_cswc_S2027Q1DividendsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AdditionalPaidInCapitalMember_019ff179-4e75-71d9-b844-1f635dbcc6fd_terseLabel_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additional Paid-In Capital</link:label>
    <link:label id="lab_us-gaap_AdditionalPaidInCapitalMember_label_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional Paid-in Capital [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdditionalPaidInCapitalMember" xlink:to="lab_us-gaap_AdditionalPaidInCapitalMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ISIEnterprisesLLCEquityInvestmentsMember_019ff179-4f1a-7d78-81d0-e0faa966d39d_terseLabel_en-US" xlink:label="lab_cswc_ISIEnterprisesLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ISI ENTERPRISES, LLC</link:label>
    <link:label id="lab_cswc_ISIEnterprisesLLCEquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_ISIEnterprisesLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ISI Enterprises, LLC, Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_ISIEnterprisesLLCEquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_ISIEnterprisesLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ISI Enterprises, LLC, Equity Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ISIEnterprisesLLCEquityInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_ISIEnterprisesLLCEquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ISIEnterprisesLLCEquityInvestmentsMember" xlink:to="lab_cswc_ISIEnterprisesLLCEquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyCommittedCapital_019ff179-4e75-71f0-8e2a-562602b7ca5a_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyCommittedCapital" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Initial equity capital commitment</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyCommittedCapital_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyCommittedCapital" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Committed Capital</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyCommittedCapital" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyCommittedCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyCommittedCapital" xlink:to="lab_us-gaap_InvestmentCompanyCommittedCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GuaranteeObligationsNatureDomain_019ff179-4e75-767b-8561-0839005d6660_terseLabel_en-US" xlink:label="lab_us-gaap_GuaranteeObligationsNatureDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Guarantor Obligations, Nature [Domain]</link:label>
    <link:label id="lab_us-gaap_GuaranteeObligationsNatureDomain_label_en-US" xlink:label="lab_us-gaap_GuaranteeObligationsNatureDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Guarantor Obligations, Nature [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeObligationsNatureDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GuaranteeObligationsNatureDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GuaranteeObligationsNatureDomain" xlink:to="lab_us-gaap_GuaranteeObligationsNatureDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_MediaMarketingSectorMember_019ff179-4f9d-7a41-b7a8-0298acb52244_terseLabel_en-US" xlink:label="lab_cswc_MediaMarketingSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Media &amp; Marketing</link:label>
    <link:label id="lab_cswc_MediaMarketingSectorMember_label_en-US" xlink:label="lab_cswc_MediaMarketingSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Media &amp; Marketing Sector [Member]</link:label>
    <link:label id="lab_cswc_MediaMarketingSectorMember_documentation_en-US" xlink:label="lab_cswc_MediaMarketingSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Media &amp; Marketing Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_MediaMarketingSectorMember" xlink:href="cswc-20260930.xsd#cswc_MediaMarketingSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_MediaMarketingSectorMember" xlink:to="lab_cswc_MediaMarketingSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestReceivable_019ff179-4f1a-7f74-884b-5e2a5875c122_terseLabel_en-US" xlink:label="lab_us-gaap_InterestReceivable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest receivable</link:label>
    <link:label id="lab_us-gaap_InterestReceivable_label_en-US" xlink:label="lab_us-gaap_InterestReceivable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Receivable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestReceivable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestReceivable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestReceivable" xlink:to="lab_us-gaap_InterestReceivable" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_TrdArrIndName_terseLabel_en-US" xlink:label="lab_ecd_TrdArrIndName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Name</link:label>
    <link:label id="lab_ecd_TrdArrIndName_label_en-US" xlink:label="lab_ecd_TrdArrIndName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading Arrangement, Individual Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrIndName" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TrdArrIndName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_TrdArrIndName" xlink:to="lab_ecd_TrdArrIndName" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_019ff179-4f9d-7f2f-a6a8-0c0920b5e112_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-vested restricted stock awards</link:label>
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_label_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:to="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_MISSIONCRITICALGROUPLLCMember_019ff179-4f9d-7d75-8486-1ac05cc348b1_terseLabel_en-US" xlink:label="lab_cswc_MISSIONCRITICALGROUPLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">MISSION CRITICAL GROUP, LLC</link:label>
    <link:label id="lab_cswc_MISSIONCRITICALGROUPLLCMember_label_en-US" xlink:label="lab_cswc_MISSIONCRITICALGROUPLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">MISSION CRITICAL GROUP, LLC [Member]</link:label>
    <link:label id="lab_cswc_MISSIONCRITICALGROUPLLCMember_documentation_en-US" xlink:label="lab_cswc_MISSIONCRITICALGROUPLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">MISSION CRITICAL GROUP, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_MISSIONCRITICALGROUPLLCMember" xlink:href="cswc-20260930.xsd#cswc_MISSIONCRITICALGROUPLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_MISSIONCRITICALGROUPLLCMember" xlink:to="lab_cswc_MISSIONCRITICALGROUPLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_019ff179-4f9d-793f-b853-aee0b33e02c2_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_KINDREDPETSERVICELLCFkaREDDOGOPERATIONSHOLDINGCOMPANYLLCMember_019ff179-4f9d-75fa-879e-d05e64894b35_terseLabel_en-US" xlink:label="lab_cswc_KINDREDPETSERVICELLCFkaREDDOGOPERATIONSHOLDINGCOMPANYLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">KINDRED PET SERVICE, LLC</link:label>
    <link:label id="lab_cswc_KINDREDPETSERVICELLCFkaREDDOGOPERATIONSHOLDINGCOMPANYLLCMember_label_en-US" xlink:label="lab_cswc_KINDREDPETSERVICELLCFkaREDDOGOPERATIONSHOLDINGCOMPANYLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">KINDRED PET SERVICE, LLC (fka RED DOG OPERATIONS HOLDING COMPANY LLC) [Member]</link:label>
    <link:label id="lab_cswc_KINDREDPETSERVICELLCFkaREDDOGOPERATIONSHOLDINGCOMPANYLLCMember_documentation_en-US" xlink:label="lab_cswc_KINDREDPETSERVICELLCFkaREDDOGOPERATIONSHOLDINGCOMPANYLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">KINDRED PET SERVICE, LLC (fka RED DOG OPERATIONS HOLDING COMPANY LLC)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_KINDREDPETSERVICELLCFkaREDDOGOPERATIONSHOLDINGCOMPANYLLCMember" xlink:href="cswc-20260930.xsd#cswc_KINDREDPETSERVICELLCFkaREDDOGOPERATIONSHOLDINGCOMPANYLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_KINDREDPETSERVICELLCFkaREDDOGOPERATIONSHOLDINGCOMPANYLLCMember" xlink:to="lab_cswc_KINDREDPETSERVICELLCFkaREDDOGOPERATIONSHOLDINGCOMPANYLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_EducationSectorMember_019ff179-4e75-773b-a5e6-5fe36da9f397_terseLabel_en-US" xlink:label="lab_cswc_EducationSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Education</link:label>
    <link:label id="lab_cswc_EducationSectorMember_label_en-US" xlink:label="lab_cswc_EducationSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Education Sector [Member]</link:label>
    <link:label id="lab_cswc_EducationSectorMember_documentation_en-US" xlink:label="lab_cswc_EducationSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Education Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_EducationSectorMember" xlink:href="cswc-20260930.xsd#cswc_EducationSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_EducationSectorMember" xlink:to="lab_cswc_EducationSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RealizedInvestmentGainsLossesAbstract_019ff179-4f9d-7696-bf17-3c409f5307fb_terseLabel_en-US" xlink:label="lab_us-gaap_RealizedInvestmentGainsLossesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Realized gain (loss)</link:label>
    <link:label id="lab_us-gaap_RealizedInvestmentGainsLossesAbstract_label_en-US" xlink:label="lab_us-gaap_RealizedInvestmentGainsLossesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Realized Investment Gains (Losses) [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealizedInvestmentGainsLossesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RealizedInvestmentGainsLossesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RealizedInvestmentGainsLossesAbstract" xlink:to="lab_us-gaap_RealizedInvestmentGainsLossesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeaseExpense_019ff179-4f1a-7b3a-b658-d76c959f3284_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lease expense</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseExpense_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Lease, Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseExpense" xlink:to="lab_us-gaap_OperatingLeaseExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_CoSelectedMeasureAmt_terseLabel_en-US" xlink:label="lab_ecd_CoSelectedMeasureAmt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Company Selected Measure Amount</link:label>
    <link:label id="lab_ecd_CoSelectedMeasureAmt_label_en-US" xlink:label="lab_ecd_CoSelectedMeasureAmt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Company Selected Measure Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_CoSelectedMeasureAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_CoSelectedMeasureAmt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_CoSelectedMeasureAmt" xlink:to="lab_ecd_CoSelectedMeasureAmt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeTaxReceivable_019ff179-4f9d-7c18-b1cd-be39cfde6a3c_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxReceivable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income tax receivable</link:label>
    <link:label id="lab_us-gaap_IncomeTaxReceivable_label_en-US" xlink:label="lab_us-gaap_IncomeTaxReceivable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Taxes Receivable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReceivable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxReceivable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxReceivable" xlink:to="lab_us-gaap_IncomeTaxReceivable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DepreciationDepletionAndAmortization_019ff179-4f1b-7cd4-9db4-a83c7c53425e_terseLabel_en-US" xlink:label="lab_us-gaap_DepreciationDepletionAndAmortization" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation and amortization</link:label>
    <link:label id="lab_us-gaap_DepreciationDepletionAndAmortization_label_en-US" xlink:label="lab_us-gaap_DepreciationDepletionAndAmortization" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation, Depletion and Amortization</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DepreciationDepletionAndAmortization" xlink:to="lab_us-gaap_DepreciationDepletionAndAmortization" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_WORLDWIDELANDTRANSFERLLCMember_01a16476-9261-7e62-8231-7565d55a5555_terseLabel_en-US" xlink:label="lab_cswc_WORLDWIDELANDTRANSFERLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">WORLD WIDE LAND TRANSFER, LLC</link:label>
    <link:label id="lab_cswc_WORLDWIDELANDTRANSFERLLCMember_label_en-US" xlink:label="lab_cswc_WORLDWIDELANDTRANSFERLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">WORLD WIDE LAND TRANSFER, LLC [Member]</link:label>
    <link:label id="lab_cswc_WORLDWIDELANDTRANSFERLLCMember_documentation_en-US" xlink:label="lab_cswc_WORLDWIDELANDTRANSFERLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">WORLD WIDE LAND TRANSFER, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_WORLDWIDELANDTRANSFERLLCMember" xlink:href="cswc-20260930.xsd#cswc_WORLDWIDELANDTRANSFERLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_WORLDWIDELANDTRANSFERLLCMember" xlink:to="lab_cswc_WORLDWIDELANDTRANSFERLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentOwnedCollateralPledgedPercentageOfEquityInterest_019ff179-4e75-7ede-814d-2f825765cbd2_terseLabel_en-US" xlink:label="lab_cswc_InvestmentOwnedCollateralPledgedPercentageOfEquityInterest" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percent of assets</link:label>
    <link:label id="lab_cswc_InvestmentOwnedCollateralPledgedPercentageOfEquityInterest_label_en-US" xlink:label="lab_cswc_InvestmentOwnedCollateralPledgedPercentageOfEquityInterest" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Owned, Collateral Pledged, Percentage Of Equity Interest</link:label>
    <link:label id="lab_cswc_InvestmentOwnedCollateralPledgedPercentageOfEquityInterest_documentation_en-US" xlink:label="lab_cswc_InvestmentOwnedCollateralPledgedPercentageOfEquityInterest" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Owned, Collateral Pledged, Percentage Of Equity Interest</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentOwnedCollateralPledgedPercentageOfEquityInterest" xlink:href="cswc-20260930.xsd#cswc_InvestmentOwnedCollateralPledgedPercentageOfEquityInterest"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentOwnedCollateralPledgedPercentageOfEquityInterest" xlink:to="lab_cswc_InvestmentOwnedCollateralPledgedPercentageOfEquityInterest" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyTaxBasisUnrealizedGainLossNotCurrentlyTaxableDeductible_019ff179-4f9d-7dc2-a327-4a7809fd27b5_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyTaxBasisUnrealizedGainLossNotCurrentlyTaxableDeductible" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net unrealized depreciation on investments</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyTaxBasisUnrealizedGainLossNotCurrentlyTaxableDeductible_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyTaxBasisUnrealizedGainLossNotCurrentlyTaxableDeductible" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Tax Basis, Unrealized (Gain) Loss, Not Currently (Taxable) Deductible</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyTaxBasisUnrealizedGainLossNotCurrentlyTaxableDeductible" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyTaxBasisUnrealizedGainLossNotCurrentlyTaxableDeductible"/>
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    <link:label id="lab_cswc_DeferredTaxLiabilitiesBasisDifferencesInPortfolioInvestmentsNet_019ff179-4e75-73b8-b594-0dd0f1f1a2c7_negatedLabel_en-US" xlink:label="lab_cswc_DeferredTaxLiabilitiesBasisDifferencesInPortfolioInvestmentsNet" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Net basis differences in portfolio investments</link:label>
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    <link:label id="lab_cswc_DeferredTaxLiabilitiesBasisDifferencesInPortfolioInvestmentsNet_documentation_en-US" xlink:label="lab_cswc_DeferredTaxLiabilitiesBasisDifferencesInPortfolioInvestmentsNet" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deferred Tax Liabilities, Basis Differences In Portfolio Investments Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DeferredTaxLiabilitiesBasisDifferencesInPortfolioInvestmentsNet" xlink:href="cswc-20260930.xsd#cswc_DeferredTaxLiabilitiesBasisDifferencesInPortfolioInvestmentsNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DeferredTaxLiabilitiesBasisDifferencesInPortfolioInvestmentsNet" xlink:to="lab_cswc_DeferredTaxLiabilitiesBasisDifferencesInPortfolioInvestmentsNet" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_NonPeoNeoMember_terseLabel_en-US" xlink:label="lab_ecd_NonPeoNeoMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-PEO NEO</link:label>
    <link:label id="lab_ecd_NonPeoNeoMember_label_en-US" xlink:label="lab_ecd_NonPeoNeoMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-PEO NEO [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonPeoNeoMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_NonPeoNeoMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_NonPeoNeoMember" xlink:to="lab_ecd_NonPeoNeoMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SubsidiarySaleOfStockLineItems_019ff179-4f1a-7066-ac46-244f1cdd0ddb_terseLabel_en-US" xlink:label="lab_us-gaap_SubsidiarySaleOfStockLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsidiary, Sale of Stock [Line Items]</link:label>
    <link:label id="lab_us-gaap_SubsidiarySaleOfStockLineItems_label_en-US" xlink:label="lab_us-gaap_SubsidiarySaleOfStockLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsidiary, Sale of Stock [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsidiarySaleOfStockLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsidiarySaleOfStockLineItems" xlink:to="lab_us-gaap_SubsidiarySaleOfStockLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings_01a10c01-f8ef-7968-a1ab-cb1a81fbc85d_terseLabel_en-US" xlink:label="lab_us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net unrealized gain/loss impact related to the fair value hedg</link:label>
    <link:label id="lab_us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings_label_en-US" xlink:label="lab_us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (Loss) on Fair Value Hedges Recognized in Earnings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings" xlink:to="lab_us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2035PoolMember_019ff179-4f1b-7164-b084-f4606af8f673_terseLabel_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2035PoolMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debentures due March 2035</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2035PoolMember_label_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2035PoolMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures Due, March 2035 Pool [Member]</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2035PoolMember_documentation_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2035PoolMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures Due, March 2035 Pool</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SmallBusinessAdministrationDebenturesDueMarch2035PoolMember" xlink:href="cswc-20260930.xsd#cswc_SmallBusinessAdministrationDebenturesDueMarch2035PoolMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SmallBusinessAdministrationDebenturesDueMarch2035PoolMember" xlink:to="lab_cswc_SmallBusinessAdministrationDebenturesDueMarch2035PoolMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentIncomeOperatingTaxExpenseBenefit_019ff179-4f9d-7809-b147-8fb43d705dfd_totalLabel_en-US" xlink:label="lab_us-gaap_InvestmentIncomeOperatingTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total income tax provision</link:label>
    <link:label id="lab_us-gaap_InvestmentIncomeOperatingTaxExpenseBenefit_label_en-US" xlink:label="lab_us-gaap_InvestmentIncomeOperatingTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Income, Operating, Tax Expense (Benefit)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeOperatingTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeOperatingTaxExpenseBenefit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentIncomeOperatingTaxExpenseBenefit" xlink:to="lab_us-gaap_InvestmentIncomeOperatingTaxExpenseBenefit" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_PATRIOTINTERMEDIATEHOLDCOLLCMember_019ff179-4f1a-7a8a-a7e9-28a9727b28fa_terseLabel_en-US" xlink:label="lab_cswc_PATRIOTINTERMEDIATEHOLDCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">PATRIOT INTERMEDIATE HOLDCO, LLC</link:label>
    <link:label id="lab_cswc_PATRIOTINTERMEDIATEHOLDCOLLCMember_label_en-US" xlink:label="lab_cswc_PATRIOTINTERMEDIATEHOLDCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">PATRIOT INTERMEDIATE HOLDCO, LLC [Member]</link:label>
    <link:label id="lab_cswc_PATRIOTINTERMEDIATEHOLDCOLLCMember_documentation_en-US" xlink:label="lab_cswc_PATRIOTINTERMEDIATEHOLDCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">PATRIOT INTERMEDIATE HOLDCO, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_PATRIOTINTERMEDIATEHOLDCOLLCMember" xlink:href="cswc-20260930.xsd#cswc_PATRIOTINTERMEDIATEHOLDCOLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_PATRIOTINTERMEDIATEHOLDCOLLCMember" xlink:to="lab_cswc_PATRIOTINTERMEDIATEHOLDCOLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_CHALETDESSERTSLLCMember_019ff179-4e75-7f76-8780-b80dcafec0ee_terseLabel_en-US" xlink:label="lab_cswc_CHALETDESSERTSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CHALET DESSERTS, LLC</link:label>
    <link:label id="lab_cswc_CHALETDESSERTSLLCMember_label_en-US" xlink:label="lab_cswc_CHALETDESSERTSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CHALET DESSERTS, LLC [Member]</link:label>
    <link:label id="lab_cswc_CHALETDESSERTSLLCMember_documentation_en-US" xlink:label="lab_cswc_CHALETDESSERTSLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">CHALET DESSERTS, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CHALETDESSERTSLLCMember" xlink:href="cswc-20260930.xsd#cswc_CHALETDESSERTSLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_CHALETDESSERTSLLCMember" xlink:to="lab_cswc_CHALETDESSERTSLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AwardTmgMethodTextBlock_terseLabel_en-US" xlink:label="lab_ecd_AwardTmgMethodTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Award Timing Method</link:label>
    <link:label id="lab_ecd_AwardTmgMethodTextBlock_label_en-US" xlink:label="lab_ecd_AwardTmgMethodTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Timing Method [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgMethodTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardTmgMethodTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AwardTmgMethodTextBlock" xlink:to="lab_ecd_AwardTmgMethodTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019ff179-4e75-7e4f-933f-67f5dedd61e8_totalLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net increase in cash, cash equivalents and restricted cash</link:label>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_label_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
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    <link:label id="lab_ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock_terseLabel_en-US" xlink:label="lab_ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Forgone Recovery, Explanation of Impracticability</link:label>
    <link:label id="lab_ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock_label_en-US" xlink:label="lab_ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Forgone Recovery, Explanation of Impracticability [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock" xlink:to="lab_ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_PACIFICDEFENSELLCMember_01a13a2b-c562-7748-8fa9-74719a660e93_terseLabel_en-US" xlink:label="lab_cswc_PACIFICDEFENSELLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">PACIFIC DEFENSE, LLC</link:label>
    <link:label id="lab_cswc_PACIFICDEFENSELLCMember_label_en-US" xlink:label="lab_cswc_PACIFICDEFENSELLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">PACIFIC DEFENSE, LLC [Member]</link:label>
    <link:label id="lab_cswc_PACIFICDEFENSELLCMember_documentation_en-US" xlink:label="lab_cswc_PACIFICDEFENSELLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">PACIFIC DEFENSE, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_PACIFICDEFENSELLCMember" xlink:href="cswc-20260930.xsd#cswc_PACIFICDEFENSELLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_PACIFICDEFENSELLCMember" xlink:to="lab_cswc_PACIFICDEFENSELLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DeferredTaxAssetsGross_019ff179-4f1a-73f1-a4f1-951257d6cd03_totalLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsGross" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total deferred tax asset</link:label>
    <link:label id="lab_us-gaap_DeferredTaxAssetsGross_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsGross" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Assets, Gross</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGross" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredTaxAssetsGross"/>
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    <link:label id="lab_cswc_BONDBRANDLOYALTYULCMember_019ff179-4e75-7dc6-a2bf-ace4a2c048a7_terseLabel_en-US" xlink:label="lab_cswc_BONDBRANDLOYALTYULCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">BOND BRAND LOYALTY ULC</link:label>
    <link:label id="lab_cswc_BONDBRANDLOYALTYULCMember_label_en-US" xlink:label="lab_cswc_BONDBRANDLOYALTYULCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">BOND BRAND LOYALTY ULC [Member]</link:label>
    <link:label id="lab_cswc_BONDBRANDLOYALTYULCMember_documentation_en-US" xlink:label="lab_cswc_BONDBRANDLOYALTYULCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">BOND BRAND LOYALTY ULC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_BONDBRANDLOYALTYULCMember" xlink:href="cswc-20260930.xsd#cswc_BONDBRANDLOYALTYULCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_BONDBRANDLOYALTYULCMember" xlink:to="lab_cswc_BONDBRANDLOYALTYULCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_AMERICANNUTSOPERATIONSLLCEquityInvestmentsMember_019ff179-4f9d-758e-b0b2-244f8ccc5c1c_terseLabel_en-US" xlink:label="lab_cswc_AMERICANNUTSOPERATIONSLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">AMERICAN NUTS OPERATIONS LLC</link:label>
    <link:label id="lab_cswc_AMERICANNUTSOPERATIONSLLCEquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_AMERICANNUTSOPERATIONSLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">AMERICAN NUTS OPERATIONS LLC, Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_AMERICANNUTSOPERATIONSLLCEquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_AMERICANNUTSOPERATIONSLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">AMERICAN NUTS OPERATIONS LLC, Equity Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_AMERICANNUTSOPERATIONSLLCEquityInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_AMERICANNUTSOPERATIONSLLCEquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_AMERICANNUTSOPERATIONSLLCEquityInvestmentsMember" xlink:to="lab_cswc_AMERICANNUTSOPERATIONSLLCEquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ENSTOAINC.Member_019ff179-4e74-74db-adb1-426436609e5e_terseLabel_en-US" xlink:label="lab_cswc_ENSTOAINC.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CONSERTUS, INC. (FKA ENSTOA, INC.)</link:label>
    <link:label id="lab_cswc_ENSTOAINC.Member_label_en-US" xlink:label="lab_cswc_ENSTOAINC.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ENSTOA, INC. [Member]</link:label>
    <link:label id="lab_cswc_ENSTOAINC.Member_documentation_en-US" xlink:label="lab_cswc_ENSTOAINC.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ENSTOA, INC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ENSTOAINC.Member" xlink:href="cswc-20260930.xsd#cswc_ENSTOAINC.Member"/>
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    <link:label id="lab_us-gaap_NetIncomeLoss_019ff179-4f1a-7651-b630-b87d0067f49b_totalLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net increase in net assets from operations</link:label>
    <link:label id="lab_us-gaap_NetIncomeLoss_019ff179-4f1a-7781-98f6-849f487cc889_verboseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net increase in net assets from operations</link:label>
    <link:label id="lab_us-gaap_NetIncomeLoss_019ff179-4f1a-70c9-aa60-94e09ee5eb5d_terseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Numerator for basic earnings per share</link:label>
    <link:label id="lab_us-gaap_NetIncomeLoss_label_en-US" xlink:label="lab_us-gaap_NetIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Income (Loss) Attributable to Parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLoss" xlink:to="lab_us-gaap_NetIncomeLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongtermDebtTypeAxis_019ff179-4e75-7e7b-8c7c-1dc2c626bc40_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-Term Debt, Type [Axis]</link:label>
    <link:label id="lab_us-gaap_LongtermDebtTypeAxis_label_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-Term Debt, Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongtermDebtTypeAxis" xlink:to="lab_us-gaap_LongtermDebtTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_ErrCompAnalysisTextBlock_terseLabel_en-US" xlink:label="lab_ecd_ErrCompAnalysisTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Erroneous Compensation Analysis</link:label>
    <link:label id="lab_ecd_ErrCompAnalysisTextBlock_label_en-US" xlink:label="lab_ecd_ErrCompAnalysisTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Erroneous Compensation Analysis [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ErrCompAnalysisTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ErrCompAnalysisTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_ErrCompAnalysisTextBlock" xlink:to="lab_ecd_ErrCompAnalysisTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentsMember_019ff179-4f1a-79b4-aada-f9395a8a8699_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total Investments</link:label>
    <link:label id="lab_us-gaap_InvestmentsMember_label_en-US" xlink:label="lab_us-gaap_InvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentsMember" xlink:to="lab_us-gaap_InvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_RestatementDateAxis_terseLabel_en-US" xlink:label="lab_ecd_RestatementDateAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restatement Determination Date:</link:label>
    <link:label id="lab_ecd_RestatementDateAxis_label_en-US" xlink:label="lab_ecd_RestatementDateAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restatement Determination Date [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_RestatementDateAxis" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_RestatementDateAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_RestatementDateAxis" xlink:to="lab_ecd_RestatementDateAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_THEGOBELGROUPLLCMember_019ff179-4e75-7825-bccc-ace02070320c_terseLabel_en-US" xlink:label="lab_cswc_THEGOBELGROUPLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">THE GOBEL GROUP, LLC</link:label>
    <link:label id="lab_cswc_THEGOBELGROUPLLCMember_label_en-US" xlink:label="lab_cswc_THEGOBELGROUPLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">THE GOBEL GROUP, LLC [Member]</link:label>
    <link:label id="lab_cswc_THEGOBELGROUPLLCMember_documentation_en-US" xlink:label="lab_cswc_THEGOBELGROUPLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">THE GOBEL GROUP, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_THEGOBELGROUPLLCMember" xlink:href="cswc-20260930.xsd#cswc_THEGOBELGROUPLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_THEGOBELGROUPLLCMember" xlink:to="lab_cswc_THEGOBELGROUPLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ProceedsFromNotesPayable_019ff179-4e75-766f-89a7-1cbe724f34e6_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromNotesPayable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from issuance of Notes</link:label>
    <link:label id="lab_us-gaap_ProceedsFromNotesPayable_label_en-US" xlink:label="lab_us-gaap_ProceedsFromNotesPayable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Notes Payable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromNotesPayable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromNotesPayable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromNotesPayable" xlink:to="lab_us-gaap_ProceedsFromNotesPayable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeLeasesPolicyTextBlock_019ff179-4f1a-705b-878b-5d3a134525b2_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeLeasesPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Leases</link:label>
    <link:label id="lab_us-gaap_LesseeLeasesPolicyTextBlock_label_en-US" xlink:label="lab_us-gaap_LesseeLeasesPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Leases [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeasesPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeasesPolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeLeasesPolicyTextBlock" xlink:to="lab_us-gaap_LesseeLeasesPolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyOtherAdjustmentsPerShare_019ff179-4f1a-7441-b778-1da59e40558b_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyOtherAdjustmentsPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other (in usd per share)</link:label>
    <link:label id="lab_cswc_InvestmentCompanyOtherAdjustmentsPerShare_label_en-US" xlink:label="lab_cswc_InvestmentCompanyOtherAdjustmentsPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Other Adjustments Per Share</link:label>
    <link:label id="lab_cswc_InvestmentCompanyOtherAdjustmentsPerShare_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyOtherAdjustmentsPerShare" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Other Adjustments Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyOtherAdjustmentsPerShare" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyOtherAdjustmentsPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyOtherAdjustmentsPerShare" xlink:to="lab_cswc_InvestmentCompanyOtherAdjustmentsPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_UnsecuredConvertibleNotesMember_019ff179-4e74-7ed9-b1b6-b2e9bbc9dbf9_terseLabel_en-US" xlink:label="lab_cswc_UnsecuredConvertibleNotesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unsecured Convertible Notes</link:label>
    <link:label id="lab_cswc_UnsecuredConvertibleNotesMember_label_en-US" xlink:label="lab_cswc_UnsecuredConvertibleNotesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unsecured Convertible Notes [Member]</link:label>
    <link:label id="lab_cswc_UnsecuredConvertibleNotesMember_documentation_en-US" xlink:label="lab_cswc_UnsecuredConvertibleNotesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Unsecured Convertible Notes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_UnsecuredConvertibleNotesMember" xlink:href="cswc-20260930.xsd#cswc_UnsecuredConvertibleNotesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_UnsecuredConvertibleNotesMember" xlink:to="lab_cswc_UnsecuredConvertibleNotesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1_019ff179-4f1a-7c6b-83f8-ec6df1faccd2_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consecutive trading days</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Convertible, Threshold Consecutive Trading Days</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1" xlink:to="lab_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_INSTITUTESOFHEALTHLLCMember_019ff179-4f1a-716f-bff0-722e931c75cc_terseLabel_en-US" xlink:label="lab_cswc_INSTITUTESOFHEALTHLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">INSTITUTES OF HEALTH, LLC</link:label>
    <link:label id="lab_cswc_INSTITUTESOFHEALTHLLCMember_label_en-US" xlink:label="lab_cswc_INSTITUTESOFHEALTHLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">INSTITUTES OF HEALTH, LLC [Member]</link:label>
    <link:label id="lab_cswc_INSTITUTESOFHEALTHLLCMember_documentation_en-US" xlink:label="lab_cswc_INSTITUTESOFHEALTHLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">INSTITUTES OF HEALTH, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_INSTITUTESOFHEALTHLLCMember" xlink:href="cswc-20260930.xsd#cswc_INSTITUTESOFHEALTHLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_INSTITUTESOFHEALTHLLCMember" xlink:to="lab_cswc_INSTITUTESOFHEALTHLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_IncreaseDecreaseInMembersCapital_019ff179-4f9d-767b-b225-446205ae1864_totalLabel_en-US" xlink:label="lab_cswc_IncreaseDecreaseInMembersCapital" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net increase in members' equity resulting from operations</link:label>
    <link:label id="lab_cswc_IncreaseDecreaseInMembersCapital_label_en-US" xlink:label="lab_cswc_IncreaseDecreaseInMembersCapital" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Member's Capital</link:label>
    <link:label id="lab_cswc_IncreaseDecreaseInMembersCapital_documentation_en-US" xlink:label="lab_cswc_IncreaseDecreaseInMembersCapital" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Member's Capital</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_IncreaseDecreaseInMembersCapital" xlink:href="cswc-20260930.xsd#cswc_IncreaseDecreaseInMembersCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_IncreaseDecreaseInMembersCapital" xlink:to="lab_cswc_IncreaseDecreaseInMembersCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SoutheastRegionMember_019ff179-4f9d-7306-9b86-d0ee90c64a6c_terseLabel_en-US" xlink:label="lab_us-gaap_SoutheastRegionMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Southeast</link:label>
    <link:label id="lab_us-gaap_SoutheastRegionMember_label_en-US" xlink:label="lab_us-gaap_SoutheastRegionMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">US Southeast Region [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoutheastRegionMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SoutheastRegionMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SoutheastRegionMember" xlink:to="lab_us-gaap_SoutheastRegionMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AccruedIncomeTaxes_019ff179-4f9d-7823-b05b-e01d62c6188a_terseLabel_en-US" xlink:label="lab_us-gaap_AccruedIncomeTaxes" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income tax payable</link:label>
    <link:label id="lab_us-gaap_AccruedIncomeTaxes_label_en-US" xlink:label="lab_us-gaap_AccruedIncomeTaxes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued Income Taxes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxes" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccruedIncomeTaxes"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccruedIncomeTaxes" xlink:to="lab_us-gaap_AccruedIncomeTaxes" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_PnsnBnftsAdjFnTextBlock_terseLabel_en-US" xlink:label="lab_ecd_PnsnBnftsAdjFnTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pension Benefits Adjustments, Footnote</link:label>
    <link:label id="lab_ecd_PnsnBnftsAdjFnTextBlock_label_en-US" xlink:label="lab_ecd_PnsnBnftsAdjFnTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pension Benefits Adjustments, Footnote [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PnsnBnftsAdjFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PnsnBnftsAdjFnTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_PnsnBnftsAdjFnTextBlock" xlink:to="lab_ecd_PnsnBnftsAdjFnTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinancialSupportToNonconsolidatedLegalEntityDomain_019ff179-4e75-78cf-8b99-a2bdd6d3d5ea_terseLabel_en-US" xlink:label="lab_us-gaap_FinancialSupportToNonconsolidatedLegalEntityDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial Support to Nonconsolidated Legal Entity [Domain]</link:label>
    <link:label id="lab_us-gaap_FinancialSupportToNonconsolidatedLegalEntityDomain_label_en-US" xlink:label="lab_us-gaap_FinancialSupportToNonconsolidatedLegalEntityDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Support to Nonconsolidated Legal Entity [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialSupportToNonconsolidatedLegalEntityDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialSupportToNonconsolidatedLegalEntityDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancialSupportToNonconsolidatedLegalEntityDomain" xlink:to="lab_us-gaap_FinancialSupportToNonconsolidatedLegalEntityDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther_019ff179-4e74-72d5-a1f9-3888d22e89eb_terseLabel_en-US" xlink:label="lab_us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustment for interest and amortization on 2029 Convertible Notes</link:label>
    <link:label id="lab_us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther_label_en-US" xlink:label="lab_us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Convertible Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther" xlink:to="lab_us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_019ff179-4f1a-7fc7-b677-d16ea0300ef1_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted Average Vesting Term (in years)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted-Average Remaining Contractual Term</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms"/>
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    <link:label id="lab_cswc_O2026M3TaxYearDividendsMember_019ff179-4e75-79cf-a603-15edc2ef5158_terseLabel_en-US" xlink:label="lab_cswc_O2026M3TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">O 2026 M3 Tax Year Dividends</link:label>
    <link:label id="lab_cswc_O2026M3TaxYearDividendsMember_label_en-US" xlink:label="lab_cswc_O2026M3TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">O 2026 M3 Tax Year Dividends [Member]</link:label>
    <link:label id="lab_cswc_O2026M3TaxYearDividendsMember_documentation_en-US" xlink:label="lab_cswc_O2026M3TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">O 2026 M3 Tax Year Dividends</link:label>
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    <link:label id="lab_srt_RangeMember_019ff179-4e75-7bce-92d3-4b454aae53b8_terseLabel_en-US" xlink:label="lab_srt_RangeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statistical Measurement [Domain]</link:label>
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    <link:label id="lab_cswc_VIVOBUYERLLCMember_01a13a38-743f-79bc-871f-21eba2628cf4_terseLabel_en-US" xlink:label="lab_cswc_VIVOBUYERLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">VIVO BUYER, LLC</link:label>
    <link:label id="lab_cswc_VIVOBUYERLLCMember_label_en-US" xlink:label="lab_cswc_VIVOBUYERLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">VIVO BUYER, LLC [Member]</link:label>
    <link:label id="lab_cswc_VIVOBUYERLLCMember_documentation_en-US" xlink:label="lab_cswc_VIVOBUYERLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">VIVO BUYER, LLC</link:label>
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    <link:label id="lab_dei_DocumentFiscalYearFocus_019ff179-4e75-7adf-8f32-8e752e9d1a73_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentFiscalYearFocus"/>
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    <link:label id="lab_us-gaap_LesseeOperatingLeaseDiscountRate_019ff179-4e75-7d88-aa13-b56c8f5f4365_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseDiscountRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Discount rate</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseDiscountRate_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseDiscountRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Operating Lease, Discount Rate</link:label>
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    <link:label id="lab_us-gaap_CommonStockValue_019ff179-4e75-77ad-b588-a6d5f7d795fe_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common stock, $0.25 par value: authorized, 135,000,000 shares at September 30, 2026 and 75,000,000 shares at March 31, 2026; issued, 66,491,300 shares at September 30, 2026 and 60,577,181 shares at March 31, 2026</link:label>
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    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_019ff179-4f1a-7b97-aec8-a507470ce7b2_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2028</link:label>
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    <link:label id="lab_us-gaap_ScheduleOfDebtInstrumentsTextBlock_019ff179-4f1a-7ded-9787-5e88ce81b34b_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Notes and SBA Debentures</link:label>
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    <link:label id="lab_us-gaap_LineOfCreditMember_019ff179-4f9d-72f1-89d6-b7d91bd0af96_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Line of Credit</link:label>
    <link:label id="lab_us-gaap_LineOfCreditMember_label_en-US" xlink:label="lab_us-gaap_LineOfCreditMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Line of Credit [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
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    <link:label id="lab_cswc_RevoBrandsINCMember_019ff179-4f1a-70e5-9198-dbddce4b53d4_terseLabel_en-US" xlink:label="lab_cswc_RevoBrandsINCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">REVO BRANDS, INC.</link:label>
    <link:label id="lab_cswc_RevoBrandsINCMember_label_en-US" xlink:label="lab_cswc_RevoBrandsINCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revo Brands, INC [Member]</link:label>
    <link:label id="lab_cswc_RevoBrandsINCMember_documentation_en-US" xlink:label="lab_cswc_RevoBrandsINCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Revo Brands, INC</link:label>
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    <link:label id="lab_ecd_RestatementDeterminationDate_terseLabel_en-US" xlink:label="lab_ecd_RestatementDeterminationDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restatement Determination Date</link:label>
    <link:label id="lab_ecd_RestatementDeterminationDate_label_en-US" xlink:label="lab_ecd_RestatementDeterminationDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restatement Determination Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_RestatementDeterminationDate" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_RestatementDeterminationDate"/>
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    <link:label id="lab_us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit_019ff179-4f1a-7f37-adc9-1787f6d80aa4_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Income tax provision</link:label>
    <link:label id="lab_us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit_label_en-US" xlink:label="lab_us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Realized Gain (Loss), Investment and Derivative, Operating, Tax Expense (Benefit)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit"/>
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    <link:label id="lab_cswc_CATBIRDNYCLLCEquityInvestmentsMember_019ff179-4e74-740b-875d-0921d237c1d2_terseLabel_en-US" xlink:label="lab_cswc_CATBIRDNYCLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CATBIRD NYC, LLC</link:label>
    <link:label id="lab_cswc_CATBIRDNYCLLCEquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_CATBIRDNYCLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CATBIRD NYC, LLC, Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_CATBIRDNYCLLCEquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_CATBIRDNYCLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">CATBIRD NYC, LLC, Equity Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CATBIRDNYCLLCEquityInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_CATBIRDNYCLLCEquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_CATBIRDNYCLLCEquityInvestmentsMember" xlink:to="lab_cswc_CATBIRDNYCLLCEquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_WELLLABSPLUSLLCMember_019ff179-4f1b-73cc-aa4c-313e7108fdf5_terseLabel_en-US" xlink:label="lab_cswc_WELLLABSPLUSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">WELL LABS PLUS, LLC</link:label>
    <link:label id="lab_cswc_WELLLABSPLUSLLCMember_label_en-US" xlink:label="lab_cswc_WELLLABSPLUSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">WELL LABS PLUS, LLC [Member]</link:label>
    <link:label id="lab_cswc_WELLLABSPLUSLLCMember_documentation_en-US" xlink:label="lab_cswc_WELLLABSPLUSLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">WELL LABS PLUS, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_WELLLABSPLUSLLCMember" xlink:href="cswc-20260930.xsd#cswc_WELLLABSPLUSLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_WELLLABSPLUSLLCMember" xlink:to="lab_cswc_WELLLABSPLUSLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ISLANDPUMPANDTANKLLCMember_019ff179-4f1a-7e5c-92cd-8bffb1474a46_terseLabel_en-US" xlink:label="lab_cswc_ISLANDPUMPANDTANKLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ISLAND PUMP AND TANK, LLC</link:label>
    <link:label id="lab_cswc_ISLANDPUMPANDTANKLLCMember_label_en-US" xlink:label="lab_cswc_ISLANDPUMPANDTANKLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ISLAND PUMP AND TANK, LLC [Member]</link:label>
    <link:label id="lab_cswc_ISLANDPUMPANDTANKLLCMember_documentation_en-US" xlink:label="lab_cswc_ISLANDPUMPANDTANKLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ISLAND PUMP AND TANK, LLC</link:label>
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    <link:label id="lab_cswc_HealthcareEquipmentSuppliesSectorMember_019ff179-4f9d-7cee-94ce-1f82a802bb76_terseLabel_en-US" xlink:label="lab_cswc_HealthcareEquipmentSuppliesSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Healthcare Equipment &amp; Supplies</link:label>
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    <link:label id="lab_cswc_HealthcareEquipmentSuppliesSectorMember_documentation_en-US" xlink:label="lab_cswc_HealthcareEquipmentSuppliesSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Healthcare Equipment &amp; Supplies Sector</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_HealthcareEquipmentSuppliesSectorMember" xlink:to="lab_cswc_HealthcareEquipmentSuppliesSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyTaxBasisReconciliationDividendIncomeSubsidiaryIncreaseDecreaseInTaxableIncome_019ff179-4e74-797f-88d0-c6396b3a8b97_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyTaxBasisReconciliationDividendIncomeSubsidiaryIncreaseDecreaseInTaxableIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividend income from wholly-owned subsidiary</link:label>
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    <link:label id="lab_cswc_O2027M4TaxYearDividendsMember_019ff179-4f9d-7133-a757-a2d9c4296b16_terseLabel_en-US" xlink:label="lab_cswc_O2027M4TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">O 2027 M4 Tax Year Dividends</link:label>
    <link:label id="lab_cswc_O2027M4TaxYearDividendsMember_label_en-US" xlink:label="lab_cswc_O2027M4TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">O 2027 M4 Tax Year Dividends [Member]</link:label>
    <link:label id="lab_cswc_O2027M4TaxYearDividendsMember_documentation_en-US" xlink:label="lab_cswc_O2027M4TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">O 2027 M4 Tax Year Dividends</link:label>
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    <link:label id="lab_us-gaap_InvestmentUnaffiliatedIssuerMember_019ff179-4f9d-74e2-99f8-57bb5ebeee27_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentUnaffiliatedIssuerMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-control/Non-affiliate investments</link:label>
    <link:label id="lab_us-gaap_InvestmentUnaffiliatedIssuerMember_label_en-US" xlink:label="lab_us-gaap_InvestmentUnaffiliatedIssuerMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Unaffiliated Issuer [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentUnaffiliatedIssuerMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentUnaffiliatedIssuerMember"/>
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    <link:label id="lab_cswc_NATIONALCREDITCARELLCEquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_NATIONALCREDITCARELLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">NATIONAL CREDIT CARE, LLC, Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_NATIONALCREDITCARELLCEquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_NATIONALCREDITCARELLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">NATIONAL CREDIT CARE, LLC, Equity Investments</link:label>
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    <link:label id="lab_cswc_DebtInstrumentCovenantSeniorCoverageRatioMinimum_019ff179-4f1a-795e-b913-31a100c5ebe4_terseLabel_en-US" xlink:label="lab_cswc_DebtInstrumentCovenantSeniorCoverageRatioMinimum" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Minimum senior coverage ratio</link:label>
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    <link:label id="lab_us-gaap_NetInvestmentIncome_019ff179-4e75-7013-89a4-2c5ad09a24ac_totalLabel_en-US" xlink:label="lab_us-gaap_NetInvestmentIncome" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Income before taxes</link:label>
    <link:label id="lab_us-gaap_NetInvestmentIncome_label_en-US" xlink:label="lab_us-gaap_NetInvestmentIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Investment Income</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetInvestmentIncome" xlink:to="lab_us-gaap_NetInvestmentIncome" xlink:type="arc" order="1"/>
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    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueDecember2034PoolMember_documentation_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueDecember2034PoolMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures Due, December 2034 Pool</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SmallBusinessAdministrationDebenturesDueDecember2034PoolMember" xlink:href="cswc-20260930.xsd#cswc_SmallBusinessAdministrationDebenturesDueDecember2034PoolMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SmallBusinessAdministrationDebenturesDueDecember2034PoolMember" xlink:to="lab_cswc_SmallBusinessAdministrationDebenturesDueDecember2034PoolMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_STUDENTRESOURCECENTERLLCMember_019ff179-4f9d-7c4b-b729-00e922cfa90c_terseLabel_en-US" xlink:label="lab_cswc_STUDENTRESOURCECENTERLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">STUDENT RESOURCE CENTER LLC</link:label>
    <link:label id="lab_cswc_STUDENTRESOURCECENTERLLCMember_label_en-US" xlink:label="lab_cswc_STUDENTRESOURCECENTERLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">STUDENT RESOURCE CENTER LLC [Member]</link:label>
    <link:label id="lab_cswc_STUDENTRESOURCECENTERLLCMember_documentation_en-US" xlink:label="lab_cswc_STUDENTRESOURCECENTERLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">STUDENT RESOURCE CENTER LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_STUDENTRESOURCECENTERLLCMember" xlink:href="cswc-20260930.xsd#cswc_STUDENTRESOURCECENTERLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_STUDENTRESOURCECENTERLLCMember" xlink:to="lab_cswc_STUDENTRESOURCECENTERLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentTypeCategorizationMember_019ff179-4f9d-7efb-be65-09c5df3a887d_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentTypeCategorizationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investments [Domain]</link:label>
    <link:label id="lab_us-gaap_InvestmentTypeCategorizationMember_label_en-US" xlink:label="lab_us-gaap_InvestmentTypeCategorizationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember" xlink:to="lab_us-gaap_InvestmentTypeCategorizationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ARBORWORKSLLCEquityInvestmentsMember_019ff179-4e75-75b9-b97f-b241d1c15306_terseLabel_en-US" xlink:label="lab_cswc_ARBORWORKSLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Distribution</link:label>
    <link:label id="lab_cswc_ARBORWORKSLLCEquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_ARBORWORKSLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ARBORWORKS, LLC, Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_ARBORWORKSLLCEquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_ARBORWORKSLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ARBORWORKS, LLC, Equity Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ARBORWORKSLLCEquityInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_ARBORWORKSLLCEquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ARBORWORKSLLCEquityInvestmentsMember" xlink:to="lab_cswc_ARBORWORKSLLCEquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentsMeasuredAtNetAssetValueMember_019ff179-4f9d-7584-9c7c-3dbd913cb57b_terseLabel_en-US" xlink:label="lab_cswc_InvestmentsMeasuredAtNetAssetValueMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investments measured at net asset value</link:label>
    <link:label id="lab_cswc_InvestmentsMeasuredAtNetAssetValueMember_label_en-US" xlink:label="lab_cswc_InvestmentsMeasuredAtNetAssetValueMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments Measured At Net Asset Value [Member]</link:label>
    <link:label id="lab_cswc_InvestmentsMeasuredAtNetAssetValueMember_documentation_en-US" xlink:label="lab_cswc_InvestmentsMeasuredAtNetAssetValueMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investments Measured At Net Asset Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentsMeasuredAtNetAssetValueMember" xlink:href="cswc-20260930.xsd#cswc_InvestmentsMeasuredAtNetAssetValueMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentsMeasuredAtNetAssetValueMember" xlink:to="lab_cswc_InvestmentsMeasuredAtNetAssetValueMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AdjToNonPeoNeoCompFnTextBlock_terseLabel_en-US" xlink:label="lab_ecd_AdjToNonPeoNeoCompFnTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustment to Non-PEO NEO Compensation Footnote</link:label>
    <link:label id="lab_ecd_AdjToNonPeoNeoCompFnTextBlock_label_en-US" xlink:label="lab_ecd_AdjToNonPeoNeoCompFnTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustment to Non-PEO NEO Compensation Footnote [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AdjToNonPeoNeoCompFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AdjToNonPeoNeoCompFnTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AdjToNonPeoNeoCompFnTextBlock" xlink:to="lab_ecd_AdjToNonPeoNeoCompFnTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_AMERICANNUTSOPERATIONSLLCMember_019ff179-4f1a-7d8e-a338-62325453bbb2_terseLabel_en-US" xlink:label="lab_cswc_AMERICANNUTSOPERATIONSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">AMERICAN NUTS OPERATIONS LLC</link:label>
    <link:label id="lab_cswc_AMERICANNUTSOPERATIONSLLCMember_label_en-US" xlink:label="lab_cswc_AMERICANNUTSOPERATIONSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">AMERICAN NUTS OPERATIONS LLC [Member]</link:label>
    <link:label id="lab_cswc_AMERICANNUTSOPERATIONSLLCMember_documentation_en-US" xlink:label="lab_cswc_AMERICANNUTSOPERATIONSLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">AMERICAN NUTS OPERATIONS LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_AMERICANNUTSOPERATIONSLLCMember" xlink:href="cswc-20260930.xsd#cswc_AMERICANNUTSOPERATIONSLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_AMERICANNUTSOPERATIONSLLCMember" xlink:to="lab_cswc_AMERICANNUTSOPERATIONSLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_QUANDARYCONSULTANTSLLCMember_01a16464-a5db-7f04-b53c-aa27a223c9a0_terseLabel_en-US" xlink:label="lab_cswc_QUANDARYCONSULTANTSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">QUANDARY CONSULTANTS, LLC</link:label>
    <link:label id="lab_cswc_QUANDARYCONSULTANTSLLCMember_label_en-US" xlink:label="lab_cswc_QUANDARYCONSULTANTSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">QUANDARY CONSULTANTS, LLC [Member]</link:label>
    <link:label id="lab_cswc_QUANDARYCONSULTANTSLLCMember_documentation_en-US" xlink:label="lab_cswc_QUANDARYCONSULTANTSLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">QUANDARY CONSULTANTS, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_QUANDARYCONSULTANTSLLCMember" xlink:href="cswc-20260930.xsd#cswc_QUANDARYCONSULTANTSLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_QUANDARYCONSULTANTSLLCMember" xlink:to="lab_cswc_QUANDARYCONSULTANTSLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_WHITEPLAINSLINENLLCMember_019ff179-4f9d-7b62-83f0-8e47bd715d10_terseLabel_en-US" xlink:label="lab_cswc_WHITEPLAINSLINENLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">WHITE PLAINS LINEN LLC</link:label>
    <link:label id="lab_cswc_WHITEPLAINSLINENLLCMember_label_en-US" xlink:label="lab_cswc_WHITEPLAINSLINENLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">WHITE PLAINS LINEN LLC [Member]</link:label>
    <link:label id="lab_cswc_WHITEPLAINSLINENLLCMember_documentation_en-US" xlink:label="lab_cswc_WHITEPLAINSLINENLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">WHITE PLAINS LINEN LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_WHITEPLAINSLINENLLCMember" xlink:href="cswc-20260930.xsd#cswc_WHITEPLAINSLINENLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_WHITEPLAINSLINENLLCMember" xlink:to="lab_cswc_WHITEPLAINSLINENLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressStateOrProvince_019ff179-4f1a-72bf-afe7-1294c6d15f0b_terseLabel_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressStateOrProvince"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressStateOrProvince" xlink:to="lab_dei_EntityAddressStateOrProvince" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_MediumTermNotes_019ff179-4f1a-7755-90f7-d607bd31bc0d_terseLabel_en-US" xlink:label="lab_us-gaap_MediumTermNotes" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Notes</link:label>
    <link:label id="lab_us-gaap_MediumTermNotes_label_en-US" xlink:label="lab_us-gaap_MediumTermNotes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Medium-Term Note</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MediumTermNotes" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MediumTermNotes"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MediumTermNotes" xlink:to="lab_us-gaap_MediumTermNotes" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_PeoTotalCompAmt_terseLabel_en-US" xlink:label="lab_ecd_PeoTotalCompAmt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">PEO Total Compensation Amount</link:label>
    <link:label id="lab_ecd_PeoTotalCompAmt_label_en-US" xlink:label="lab_ecd_PeoTotalCompAmt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">PEO Total Compensation Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeoTotalCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PeoTotalCompAmt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_PeoTotalCompAmt" xlink:to="lab_ecd_PeoTotalCompAmt" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_August2028NotesMember_019ff179-4e75-7995-9abb-5b1ca5be47e2_terseLabel_en-US" xlink:label="lab_cswc_August2028NotesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">August 2028 Notes</link:label>
    <link:label id="lab_cswc_August2028NotesMember_label_en-US" xlink:label="lab_cswc_August2028NotesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">August 2028 Notes [Member]</link:label>
    <link:label id="lab_cswc_August2028NotesMember_documentation_en-US" xlink:label="lab_cswc_August2028NotesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">August 2028 Notes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_August2028NotesMember" xlink:href="cswc-20260930.xsd#cswc_August2028NotesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_August2028NotesMember" xlink:to="lab_cswc_August2028NotesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ShareRepurchaseProgramDomain_019ff179-4f9d-74a6-964a-09b8cf588c28_terseLabel_en-US" xlink:label="lab_srt_ShareRepurchaseProgramDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Repurchase Program [Domain]</link:label>
    <link:label id="lab_srt_ShareRepurchaseProgramDomain_label_en-US" xlink:label="lab_srt_ShareRepurchaseProgramDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share Repurchase Program [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ShareRepurchaseProgramDomain" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ShareRepurchaseProgramDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ShareRepurchaseProgramDomain" xlink:to="lab_srt_ShareRepurchaseProgramDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeTaxContingencyLineItems_019ff179-4f1a-73b4-b513-8ef097090f3e_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxContingencyLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Tax Contingency [Line Items]</link:label>
    <link:label id="lab_us-gaap_IncomeTaxContingencyLineItems_label_en-US" xlink:label="lab_us-gaap_IncomeTaxContingencyLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Contingency [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxContingencyLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxContingencyLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems" xlink:to="lab_us-gaap_IncomeTaxContingencyLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeNotionalAmount_01a10bf5-5e1f-7b37-9fcd-3f36492adb7e_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeNotionalAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Notional Amount</link:label>
    <link:label id="lab_us-gaap_DerivativeNotionalAmount_label_en-US" xlink:label="lab_us-gaap_DerivativeNotionalAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative, Notional Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeNotionalAmount" xlink:to="lab_us-gaap_DerivativeNotionalAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019ff179-4f1b-7a17-bbcc-9661713527d4_terseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average common shares outstanding &#8211; basic (in shares)</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019ff179-4f1b-7654-9d5d-33633bcf417e_verboseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Denominator for basic weighted average common share (in shares)</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019ff179-4f1b-78ca-a7e0-6e6516697aa8_netLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Weighted-average basic shares outstanding (in shares)</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Basic</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:to="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueByBalanceSheetGroupingTable_019ff179-4f9d-77e7-9272-4c6378764c39_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByBalanceSheetGroupingTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, by Balance Sheet Grouping [Table]</link:label>
    <link:label id="lab_us-gaap_FairValueByBalanceSheetGroupingTable_label_en-US" xlink:label="lab_us-gaap_FairValueByBalanceSheetGroupingTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, by Balance Sheet Grouping [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByBalanceSheetGroupingTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable" xlink:to="lab_us-gaap_FairValueByBalanceSheetGroupingTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_019ff179-4f1b-77a8-bd4b-ea9ce13c6ebf_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2031</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Operating Lease, Liability, to be Paid, Year Four</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfInvestmentsAbstract_019ff179-4f9d-7cde-8027-cbc46732dd7b_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfInvestmentsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Investments [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfInvestmentsAbstract_label_en-US" xlink:label="lab_us-gaap_ScheduleOfInvestmentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Investments [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfInvestmentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfInvestmentsAbstract" xlink:to="lab_us-gaap_ScheduleOfInvestmentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ITAHOLDINGSGROUPLLCEquityInvestmentsMember_019ff179-4e75-7439-b84d-f550867774d5_terseLabel_en-US" xlink:label="lab_cswc_ITAHOLDINGSGROUPLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ITA HOLDINGS GROUP, LLC</link:label>
    <link:label id="lab_cswc_ITAHOLDINGSGROUPLLCEquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_ITAHOLDINGSGROUPLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ITA HOLDINGS GROUP, LLC, Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_ITAHOLDINGSGROUPLLCEquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_ITAHOLDINGSGROUPLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ITA HOLDINGS GROUP, LLC, Equity Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ITAHOLDINGSGROUPLLCEquityInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_ITAHOLDINGSGROUPLLCEquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ITAHOLDINGSGROUPLLCEquityInvestmentsMember" xlink:to="lab_cswc_ITAHOLDINGSGROUPLLCEquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2033Member_019ff179-4f9d-764d-8bc5-a8be081dd57e_terseLabel_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2033Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debentures due September 2033</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2033Member_label_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2033Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures, Due September 2033 [Member]</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2033Member_documentation_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2033Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures, Due September 2033</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SmallBusinessAdministrationDebenturesDueSeptember2033Member" xlink:href="cswc-20260930.xsd#cswc_SmallBusinessAdministrationDebenturesDueSeptember2033Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SmallBusinessAdministrationDebenturesDueSeptember2033Member" xlink:to="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2033Member" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_BROADSKYNETWORKSLLCMember_019ff179-4f1a-736f-b126-9b2f586ec9eb_terseLabel_en-US" xlink:label="lab_cswc_BROADSKYNETWORKSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">BROAD SKY NETWORKS LLC</link:label>
    <link:label id="lab_cswc_BROADSKYNETWORKSLLCMember_label_en-US" xlink:label="lab_cswc_BROADSKYNETWORKSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">BROAD SKY NETWORKS LLC [Member]</link:label>
    <link:label id="lab_cswc_BROADSKYNETWORKSLLCMember_documentation_en-US" xlink:label="lab_cswc_BROADSKYNETWORKSLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">BROAD SKY NETWORKS LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_BROADSKYNETWORKSLLCMember" xlink:href="cswc-20260930.xsd#cswc_BROADSKYNETWORKSLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_BROADSKYNETWORKSLLCMember" xlink:to="lab_cswc_BROADSKYNETWORKSLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ARMKOLLCMember_019ff179-4e75-7762-a689-c108f8eefa95_terseLabel_en-US" xlink:label="lab_cswc_ARMKOLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ARMKO, LLC</link:label>
    <link:label id="lab_cswc_ARMKOLLCMember_label_en-US" xlink:label="lab_cswc_ARMKOLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ARMKO, LLC [Member]</link:label>
    <link:label id="lab_cswc_ARMKOLLCMember_documentation_en-US" xlink:label="lab_cswc_ARMKOLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ARMKO, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ARMKOLLCMember" xlink:href="cswc-20260930.xsd#cswc_ARMKOLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ARMKOLLCMember" xlink:to="lab_cswc_ARMKOLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_AACNEWHOLDCOINC.Member_019ff179-4f1a-7419-ba7c-3b63b5e5ed41_terseLabel_en-US" xlink:label="lab_cswc_AACNEWHOLDCOINC.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">AAC NEW HOLDCO INC.</link:label>
    <link:label id="lab_cswc_AACNEWHOLDCOINC.Member_label_en-US" xlink:label="lab_cswc_AACNEWHOLDCOINC.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">AAC NEW HOLDCO INC. [Member]</link:label>
    <link:label id="lab_cswc_AACNEWHOLDCOINC.Member_documentation_en-US" xlink:label="lab_cswc_AACNEWHOLDCOINC.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">AAC NEW HOLDCO INC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_AACNEWHOLDCOINC.Member" xlink:href="cswc-20260930.xsd#cswc_AACNEWHOLDCOINC.Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_AACNEWHOLDCOINC.Member" xlink:to="lab_cswc_AACNEWHOLDCOINC.Member" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SBICIMember_019ff179-4e74-7bb6-83db-1f5da74bb114_terseLabel_en-US" xlink:label="lab_cswc_SBICIMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SBIC I</link:label>
    <link:label id="lab_cswc_SBICIMember_label_en-US" xlink:label="lab_cswc_SBICIMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">SBIC I [Member]</link:label>
    <link:label id="lab_cswc_SBICIMember_documentation_en-US" xlink:label="lab_cswc_SBICIMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">SBIC I</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SBICIMember" xlink:href="cswc-20260930.xsd#cswc_SBICIMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SBICIMember" xlink:to="lab_cswc_SBICIMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DebtSecuritiesFirstLienMember_019ff179-4f9d-7e24-baee-8f0a03ff6299_terseLabel_en-US" xlink:label="lab_cswc_DebtSecuritiesFirstLienMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">First lien loans</link:label>
    <link:label id="lab_cswc_DebtSecuritiesFirstLienMember_label_en-US" xlink:label="lab_cswc_DebtSecuritiesFirstLienMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Securities, First Lien [Member]</link:label>
    <link:label id="lab_cswc_DebtSecuritiesFirstLienMember_documentation_en-US" xlink:label="lab_cswc_DebtSecuritiesFirstLienMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Securities, First Lien [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DebtSecuritiesFirstLienMember" xlink:href="cswc-20260930.xsd#cswc_DebtSecuritiesFirstLienMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DebtSecuritiesFirstLienMember" xlink:to="lab_cswc_DebtSecuritiesFirstLienMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongTermDebtAverageAmountOutstanding_019ff179-4e75-7562-bb65-919b369362b1_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtAverageAmountOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Average borrowings</link:label>
    <link:label id="lab_us-gaap_LongTermDebtAverageAmountOutstanding_label_en-US" xlink:label="lab_us-gaap_LongTermDebtAverageAmountOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-Term Debt, Average Amount Outstanding</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAverageAmountOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtAverageAmountOutstanding"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtAverageAmountOutstanding" xlink:to="lab_us-gaap_LongTermDebtAverageAmountOutstanding" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AwardTmgMnpiDiscTextBlock_terseLabel_en-US" xlink:label="lab_ecd_AwardTmgMnpiDiscTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Award Timing MNPI Disclosure</link:label>
    <link:label id="lab_ecd_AwardTmgMnpiDiscTextBlock_label_en-US" xlink:label="lab_ecd_AwardTmgMnpiDiscTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Timing MNPI Disclosure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgMnpiDiscTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardTmgMnpiDiscTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AwardTmgMnpiDiscTextBlock" xlink:to="lab_ecd_AwardTmgMnpiDiscTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_019ff179-4f1a-7268-acd9-029149831fc5_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Vested (in shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
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    <link:label id="lab_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_019ff179-4f1a-7fe7-9054-ff7574b10fc7_terseLabel_en-US" xlink:label="lab_us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Basis of Presentation</link:label>
    <link:label id="lab_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_label_en-US" xlink:label="lab_us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Basis of Accounting, Policy [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock"/>
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    <link:label id="lab_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019ff179-4e75-709e-a33e-62e9b8248b9e_totalLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Numerator for basic earnings per common share</link:label>
    <link:label id="lab_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_label_en-US" xlink:label="lab_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Income (Loss) Available to Common Stockholders, Basic</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="lab_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyTaxBasisReconciliationCompensationRelatedDifferencesIncreaseDecreaseInTaxableIncome_019ff179-4f1a-7936-b9b3-dc057bf34269_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyTaxBasisReconciliationCompensationRelatedDifferencesIncreaseDecreaseInTaxableIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Compensation related book/tax differences</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyTaxBasisReconciliationCompensationRelatedDifferencesIncreaseDecreaseInTaxableIncome" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyTaxBasisReconciliationCompensationRelatedDifferencesIncreaseDecreaseInTaxableIncome"/>
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    <link:label id="lab_cswc_InterestExpenseAndUnusedCommitmentFees_019ff179-4f1a-7354-b53d-b945eeb412b8_verboseLabel_en-US" xlink:label="lab_cswc_InterestExpenseAndUnusedCommitmentFees" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Interest expense and fees</link:label>
    <link:label id="lab_cswc_InterestExpenseAndUnusedCommitmentFees_label_en-US" xlink:label="lab_cswc_InterestExpenseAndUnusedCommitmentFees" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Expense And Unused Commitment Fees</link:label>
    <link:label id="lab_cswc_InterestExpenseAndUnusedCommitmentFees_documentation_en-US" xlink:label="lab_cswc_InterestExpenseAndUnusedCommitmentFees" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Interest Expense And Unused Commitment Fees</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InterestExpenseAndUnusedCommitmentFees" xlink:href="cswc-20260930.xsd#cswc_InterestExpenseAndUnusedCommitmentFees"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InterestExpenseAndUnusedCommitmentFees" xlink:to="lab_cswc_InterestExpenseAndUnusedCommitmentFees" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ROSELANDMANAGEMENTLLCMember_019ff179-4f1a-7613-8ed3-b3e5c61dba80_terseLabel_en-US" xlink:label="lab_cswc_ROSELANDMANAGEMENTLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ROSELAND MANAGEMENT, LLC</link:label>
    <link:label id="lab_cswc_ROSELANDMANAGEMENTLLCMember_label_en-US" xlink:label="lab_cswc_ROSELANDMANAGEMENTLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ROSELAND MANAGEMENT, LLC [Member]</link:label>
    <link:label id="lab_cswc_ROSELANDMANAGEMENTLLCMember_documentation_en-US" xlink:label="lab_cswc_ROSELANDMANAGEMENTLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ROSELAND MANAGEMENT, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ROSELANDMANAGEMENTLLCMember" xlink:href="cswc-20260930.xsd#cswc_ROSELANDMANAGEMENTLLCMember"/>
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    <link:label id="lab_cswc_UNDERDOGCOMPANYTEAMLLCMember_documentation_en-US" xlink:label="lab_cswc_UNDERDOGCOMPANYTEAMLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">UNDERDOG &amp; COMPANY TEAM, LLC</link:label>
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    <link:label id="lab_cswc_NATIONALCREDITCARELLCMember_label_en-US" xlink:label="lab_cswc_NATIONALCREDITCARELLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">NATIONAL CREDIT CARE, LLC [Member]</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyNetAssetValuePerSharePeriodIncreaseDecrease" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyNetAssetValuePerSharePeriodIncreaseDecrease"/>
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    <link:label id="lab_cswc_PROACTIVETECHNOLOGYMANAGEMENTLLCMember_documentation_en-US" xlink:label="lab_cswc_PROACTIVETECHNOLOGYMANAGEMENTLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">PROACTIVE TECHNOLOGY MANAGEMENT, LLC</link:label>
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    <link:label id="lab_cswc_MYNTSHOLDINGSLLCEquitySecuritiesMember_documentation_en-US" xlink:label="lab_cswc_MYNTSHOLDINGSLLCEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">MYNTS HOLDINGS, LLC, Equity Securities</link:label>
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    <link:label id="lab_cswc_ISIENTERPRISESLLCEquitySecuritiesMember_documentation_en-US" xlink:label="lab_cswc_ISIENTERPRISESLLCEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ISI ENTERPRISES, LLC, Equity Securities</link:label>
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    <link:label id="lab_cswc_NonEmployeeDirectorPlanMember_label_en-US" xlink:label="lab_cswc_NonEmployeeDirectorPlanMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-Employee Director Plan [Member]</link:label>
    <link:label id="lab_cswc_NonEmployeeDirectorPlanMember_documentation_en-US" xlink:label="lab_cswc_NonEmployeeDirectorPlanMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non-Employee Director Plan</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_NonEmployeeDirectorPlanMember" xlink:href="cswc-20260930.xsd#cswc_NonEmployeeDirectorPlanMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_NonEmployeeDirectorPlanMember" xlink:to="lab_cswc_NonEmployeeDirectorPlanMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongTermDebt_019ff179-4f9d-7a2d-83d0-57ee58c856d5_totalLabel_en-US" xlink:label="lab_us-gaap_LongTermDebt" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Recorded Value</link:label>
    <link:label id="lab_us-gaap_LongTermDebt_label_en-US" xlink:label="lab_us-gaap_LongTermDebt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-Term Debt</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebt" xlink:to="lab_us-gaap_LongTermDebt" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_MeasurementInputCostMember_019ff179-4f1a-78ae-bb29-62b509db8fa5_terseLabel_en-US" xlink:label="lab_cswc_MeasurementInputCostMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cost</link:label>
    <link:label id="lab_cswc_MeasurementInputCostMember_label_en-US" xlink:label="lab_cswc_MeasurementInputCostMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measurement Input, Cost [Member]</link:label>
    <link:label id="lab_cswc_MeasurementInputCostMember_documentation_en-US" xlink:label="lab_cswc_MeasurementInputCostMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Measurement Input, Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_MeasurementInputCostMember" xlink:href="cswc-20260930.xsd#cswc_MeasurementInputCostMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_MeasurementInputCostMember" xlink:to="lab_cswc_MeasurementInputCostMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyTaxBasisReconciliationLossGainRecognizedOnDispositionsIncreaseDecreaseInTaxableIncome_019ff179-4e75-7895-bd80-5e8eb65df9cf_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyTaxBasisReconciliationLossGainRecognizedOnDispositionsIncreaseDecreaseInTaxableIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Realized gain book/tax differences</link:label>
    <link:label id="lab_cswc_InvestmentCompanyTaxBasisReconciliationLossGainRecognizedOnDispositionsIncreaseDecreaseInTaxableIncome_label_en-US" xlink:label="lab_cswc_InvestmentCompanyTaxBasisReconciliationLossGainRecognizedOnDispositionsIncreaseDecreaseInTaxableIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Tax Basis Reconciliation, Loss (Gain) Recognized On Dispositions, Increase (Decrease) In Taxable Income</link:label>
    <link:label id="lab_cswc_InvestmentCompanyTaxBasisReconciliationLossGainRecognizedOnDispositionsIncreaseDecreaseInTaxableIncome_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyTaxBasisReconciliationLossGainRecognizedOnDispositionsIncreaseDecreaseInTaxableIncome" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Tax Basis Reconciliation, Loss (Gain) Recognized On Dispositions, Increase (Decrease) In Taxable Income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyTaxBasisReconciliationLossGainRecognizedOnDispositionsIncreaseDecreaseInTaxableIncome" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyTaxBasisReconciliationLossGainRecognizedOnDispositionsIncreaseDecreaseInTaxableIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyTaxBasisReconciliationLossGainRecognizedOnDispositionsIncreaseDecreaseInTaxableIncome" xlink:to="lab_cswc_InvestmentCompanyTaxBasisReconciliationLossGainRecognizedOnDispositionsIncreaseDecreaseInTaxableIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_019ff179-4f9d-7666-bef3-532b2ddbd3bd_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase in taxes payable</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Income Taxes Payable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable" xlink:to="lab_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_019ff179-4f1a-761c-a01e-0260389c00cf_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash used in investing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember_terseLabel_en-US" xlink:label="lab_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity Awards Adjustments, Excluding Value Reported in Compensation Table</link:label>
    <link:label id="lab_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember_label_en-US" xlink:label="lab_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:to="lab_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold_019ff179-4e75-78a8-af9a-abf0f181363d_terseLabel_en-US" xlink:label="lab_us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Compensation</link:label>
    <link:label id="lab_us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold_label_en-US" xlink:label="lab_us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Compensation Expense, Excluding Cost of Good and Service Sold</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold" xlink:to="lab_us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock_019ff179-4e74-7216-947b-d2e198194343_terseLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SHAREHOLDERS' EQUITY</link:label>
    <link:label id="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:to="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_SecurityExchangeName_019ff179-4e75-7893-8c04-575565ddd9ed_terseLabel_en-US" xlink:label="lab_dei_SecurityExchangeName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Security Exchange Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SecurityExchangeName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SecurityExchangeName" xlink:to="lab_dei_SecurityExchangeName" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_O2026Q4DividendsMember_019ff179-4f1a-7cbb-8e55-cf889099a266_terseLabel_en-US" xlink:label="lab_cswc_O2026Q4DividendsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Regular Dividends</link:label>
    <link:label id="lab_cswc_O2026Q4DividendsMember_label_en-US" xlink:label="lab_cswc_O2026Q4DividendsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">O 2026 Q4 Dividends [Member]</link:label>
    <link:label id="lab_cswc_O2026Q4DividendsMember_documentation_en-US" xlink:label="lab_cswc_O2026Q4DividendsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">O 2026 Q4 Dividends</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_O2026Q4DividendsMember" xlink:href="cswc-20260930.xsd#cswc_O2026Q4DividendsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_O2026Q4DividendsMember" xlink:to="lab_cswc_O2026Q4DividendsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_BELLEBRANDSLLCMember_01a13a3b-f9a5-7318-abad-a390a8ad9a16_terseLabel_en-US" xlink:label="lab_cswc_BELLEBRANDSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">BELLE BRANDS, LLC</link:label>
    <link:label id="lab_cswc_BELLEBRANDSLLCMember_label_en-US" xlink:label="lab_cswc_BELLEBRANDSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">BELLE BRANDS, LLC [Member]</link:label>
    <link:label id="lab_cswc_BELLEBRANDSLLCMember_documentation_en-US" xlink:label="lab_cswc_BELLEBRANDSLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">BELLE BRANDS, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_BELLEBRANDSLLCMember" xlink:href="cswc-20260930.xsd#cswc_BELLEBRANDSLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_BELLEBRANDSLLCMember" xlink:to="lab_cswc_BELLEBRANDSLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems_019ff179-4f1a-7fe3-b978-d2983d88207f_terseLabel_en-US" xlink:label="lab_us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsidiary or Equity Method Investee [Line Items]</link:label>
    <link:label id="lab_us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems_label_en-US" xlink:label="lab_us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsidiary or Equity Method Investee [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems" xlink:to="lab_us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ValuationTechniqueAxis_019ff179-4f9d-72ff-85a4-58e31e29b5ee_terseLabel_en-US" xlink:label="lab_us-gaap_ValuationTechniqueAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Valuation Approach and Technique [Axis]</link:label>
    <link:label id="lab_us-gaap_ValuationTechniqueAxis_label_en-US" xlink:label="lab_us-gaap_ValuationTechniqueAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Valuation Approach and Technique [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationTechniqueAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ValuationTechniqueAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ValuationTechniqueAxis" xlink:to="lab_us-gaap_ValuationTechniqueAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_STATINMEDLLCMember_019ff179-4f1a-78bd-aa09-30dd7876b30e_terseLabel_en-US" xlink:label="lab_cswc_STATINMEDLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">STATINMED, LLC</link:label>
    <link:label id="lab_cswc_STATINMEDLLCMember_label_en-US" xlink:label="lab_cswc_STATINMEDLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">STATINMED, LLC [Member]</link:label>
    <link:label id="lab_cswc_STATINMEDLLCMember_documentation_en-US" xlink:label="lab_cswc_STATINMEDLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">STATINMED, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_STATINMEDLLCMember" xlink:href="cswc-20260930.xsd#cswc_STATINMEDLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_STATINMEDLLCMember" xlink:to="lab_cswc_STATINMEDLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_TITANINVESTORSLLCMember_01a13a58-1387-7155-85eb-dcacdb9e5cfa_terseLabel_en-US" xlink:label="lab_cswc_TITANINVESTORSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">TITAN INVESTORS LLC</link:label>
    <link:label id="lab_cswc_TITANINVESTORSLLCMember_label_en-US" xlink:label="lab_cswc_TITANINVESTORSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">TITAN INVESTORS LLC [Member]</link:label>
    <link:label id="lab_cswc_TITANINVESTORSLLCMember_documentation_en-US" xlink:label="lab_cswc_TITANINVESTORSLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">TITAN INVESTORS LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_TITANINVESTORSLLCMember" xlink:href="cswc-20260930.xsd#cswc_TITANINVESTORSLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_TITANINVESTORSLLCMember" xlink:to="lab_cswc_TITANINVESTORSLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_019ff179-4f1b-7a5d-b477-7e99f65f8a1f_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Available for issuance (in shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_EscrowReceivablePolicyPolicyTextBlock_019ff179-4f1a-763c-95f1-d72f6beb3bf6_terseLabel_en-US" xlink:label="lab_cswc_EscrowReceivablePolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Escrow Receivable</link:label>
    <link:label id="lab_cswc_EscrowReceivablePolicyPolicyTextBlock_label_en-US" xlink:label="lab_cswc_EscrowReceivablePolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Escrow Receivable Policy [Policy Text Block]</link:label>
    <link:label id="lab_cswc_EscrowReceivablePolicyPolicyTextBlock_documentation_en-US" xlink:label="lab_cswc_EscrowReceivablePolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Escrow Receivable Policy</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_EscrowReceivablePolicyPolicyTextBlock" xlink:href="cswc-20260930.xsd#cswc_EscrowReceivablePolicyPolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_EscrowReceivablePolicyPolicyTextBlock" xlink:to="lab_cswc_EscrowReceivablePolicyPolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyInvestmentIncomeLossTaxesPerShare_019ff179-4f1b-7238-b08c-c0a88c6c16aa_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyInvestmentIncomeLossTaxesPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income taxes (in usd per share)</link:label>
    <link:label id="lab_cswc_InvestmentCompanyInvestmentIncomeLossTaxesPerShare_label_en-US" xlink:label="lab_cswc_InvestmentCompanyInvestmentIncomeLossTaxesPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Investment Income (Loss), Taxes, Per Share</link:label>
    <link:label id="lab_cswc_InvestmentCompanyInvestmentIncomeLossTaxesPerShare_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyInvestmentIncomeLossTaxesPerShare" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Investment Income (Loss), Taxes, Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyInvestmentIncomeLossTaxesPerShare" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyInvestmentIncomeLossTaxesPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyInvestmentIncomeLossTaxesPerShare" xlink:to="lab_cswc_InvestmentCompanyInvestmentIncomeLossTaxesPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SegmentReportingPolicyPolicyTextBlock_019ff179-4f1a-7320-ba40-a60afedbe5fc_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segment Reporting</link:label>
    <link:label id="lab_us-gaap_SegmentReportingPolicyPolicyTextBlock_label_en-US" xlink:label="lab_us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segment Reporting, Policy [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingPolicyPolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:to="lab_us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DividendIncomeOperatingAbstract_019ff179-4e75-76a5-a79d-9b6d14e01f42_terseLabel_en-US" xlink:label="lab_us-gaap_DividendIncomeOperatingAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividend income:</link:label>
    <link:label id="lab_us-gaap_DividendIncomeOperatingAbstract_label_en-US" xlink:label="lab_us-gaap_DividendIncomeOperatingAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividend Income, Operating [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendIncomeOperatingAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendIncomeOperatingAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DividendIncomeOperatingAbstract" xlink:to="lab_us-gaap_DividendIncomeOperatingAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_OutstandingRecoveryIndName_terseLabel_en-US" xlink:label="lab_ecd_OutstandingRecoveryIndName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Name</link:label>
    <link:label id="lab_ecd_OutstandingRecoveryIndName_label_en-US" xlink:label="lab_ecd_OutstandingRecoveryIndName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Outstanding Recovery, Individual Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_OutstandingRecoveryIndName" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_OutstandingRecoveryIndName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_OutstandingRecoveryIndName" xlink:to="lab_ecd_OutstandingRecoveryIndName" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DerivativeLiabilityUpfrontPaymentsReceipts_01a14458-67be-7366-881f-1932c5c82dcc_terseLabel_en-US" xlink:label="lab_cswc_DerivativeLiabilityUpfrontPaymentsReceipts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Upfront Payments/Receipts</link:label>
    <link:label id="lab_cswc_DerivativeLiabilityUpfrontPaymentsReceipts_label_en-US" xlink:label="lab_cswc_DerivativeLiabilityUpfrontPaymentsReceipts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Liability, Upfront Payments (Receipts)</link:label>
    <link:label id="lab_cswc_DerivativeLiabilityUpfrontPaymentsReceipts_documentation_en-US" xlink:label="lab_cswc_DerivativeLiabilityUpfrontPaymentsReceipts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivative Liability, Upfront Payments (Receipts)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DerivativeLiabilityUpfrontPaymentsReceipts" xlink:href="cswc-20260930.xsd#cswc_DerivativeLiabilityUpfrontPaymentsReceipts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DerivativeLiabilityUpfrontPaymentsReceipts" xlink:to="lab_cswc_DerivativeLiabilityUpfrontPaymentsReceipts" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AwardTmgHowMnpiCnsdrdTextBlock_terseLabel_en-US" xlink:label="lab_ecd_AwardTmgHowMnpiCnsdrdTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Award Timing, How MNPI Considered</link:label>
    <link:label id="lab_ecd_AwardTmgHowMnpiCnsdrdTextBlock_label_en-US" xlink:label="lab_ecd_AwardTmgHowMnpiCnsdrdTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Timing, How MNPI Considered [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgHowMnpiCnsdrdTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardTmgHowMnpiCnsdrdTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AwardTmgHowMnpiCnsdrdTextBlock" xlink:to="lab_ecd_AwardTmgHowMnpiCnsdrdTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_FinancialCommitmentYearFiveMember_019ff179-4e75-7c17-914b-8c896b881440_terseLabel_en-US" xlink:label="lab_cswc_FinancialCommitmentYearFiveMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2032</link:label>
    <link:label id="lab_cswc_FinancialCommitmentYearFiveMember_label_en-US" xlink:label="lab_cswc_FinancialCommitmentYearFiveMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Commitment Year Five [Member]</link:label>
    <link:label id="lab_cswc_FinancialCommitmentYearFiveMember_documentation_en-US" xlink:label="lab_cswc_FinancialCommitmentYearFiveMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial Commitment Year Five</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_FinancialCommitmentYearFiveMember" xlink:href="cswc-20260930.xsd#cswc_FinancialCommitmentYearFiveMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_FinancialCommitmentYearFiveMember" xlink:to="lab_cswc_FinancialCommitmentYearFiveMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DataProcessingOutsourcedServicesSectorMember_019ff179-4f1b-7f56-9d53-61e224939dfa_terseLabel_en-US" xlink:label="lab_cswc_DataProcessingOutsourcedServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Data Processing &amp; Outsourced Services</link:label>
    <link:label id="lab_cswc_DataProcessingOutsourcedServicesSectorMember_label_en-US" xlink:label="lab_cswc_DataProcessingOutsourcedServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Data Processing &amp; Outsourced Services Sector [Member]</link:label>
    <link:label id="lab_cswc_DataProcessingOutsourcedServicesSectorMember_documentation_en-US" xlink:label="lab_cswc_DataProcessingOutsourcedServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Data Processing &amp; Outsourced Services Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DataProcessingOutsourcedServicesSectorMember" xlink:href="cswc-20260930.xsd#cswc_DataProcessingOutsourcedServicesSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DataProcessingOutsourcedServicesSectorMember" xlink:to="lab_cswc_DataProcessingOutsourcedServicesSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_SegmentGeographicalDomain_019ff179-4f1a-78be-8898-8dfdf964d625_terseLabel_en-US" xlink:label="lab_srt_SegmentGeographicalDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Geographical [Domain]</link:label>
    <link:label id="lab_srt_SegmentGeographicalDomain_label_en-US" xlink:label="lab_srt_SegmentGeographicalDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographical [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_SegmentGeographicalDomain" xlink:to="lab_srt_SegmentGeographicalDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember_terseLabel_en-US" xlink:label="lab_ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year</link:label>
    <link:label id="lab_ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember_label_en-US" xlink:label="lab_ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember" xlink:to="lab_ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_MoviesEntertainmentSectorMember_019ff179-4f1a-741f-8fd7-62d1382b06ec_terseLabel_en-US" xlink:label="lab_cswc_MoviesEntertainmentSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Movies &amp; Entertainment</link:label>
    <link:label id="lab_cswc_MoviesEntertainmentSectorMember_label_en-US" xlink:label="lab_cswc_MoviesEntertainmentSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Movies &amp; Entertainment Sector [Member]</link:label>
    <link:label id="lab_cswc_MoviesEntertainmentSectorMember_documentation_en-US" xlink:label="lab_cswc_MoviesEntertainmentSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Movies &amp; Entertainment Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_MoviesEntertainmentSectorMember" xlink:href="cswc-20260930.xsd#cswc_MoviesEntertainmentSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_MoviesEntertainmentSectorMember" xlink:to="lab_cswc_MoviesEntertainmentSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_PnsnAdjsPrrSvcCstMember_terseLabel_en-US" xlink:label="lab_ecd_PnsnAdjsPrrSvcCstMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pension Adjustments Prior Service Cost</link:label>
    <link:label id="lab_ecd_PnsnAdjsPrrSvcCstMember_label_en-US" xlink:label="lab_ecd_PnsnAdjsPrrSvcCstMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pension Adjustments Prior Service Cost [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PnsnAdjsPrrSvcCstMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PnsnAdjsPrrSvcCstMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_PnsnAdjsPrrSvcCstMember" xlink:to="lab_ecd_PnsnAdjsPrrSvcCstMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_MIDFLORIDAENDODONTICSMANAGEMENTCOMPANYLLCMember_019ff179-4e75-7c50-b32f-885603754b3b_terseLabel_en-US" xlink:label="lab_cswc_MIDFLORIDAENDODONTICSMANAGEMENTCOMPANYLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">MID-FLORIDA ENDODONTICS MANAGEMENT COMPANY, LLC</link:label>
    <link:label id="lab_cswc_MIDFLORIDAENDODONTICSMANAGEMENTCOMPANYLLCMember_label_en-US" xlink:label="lab_cswc_MIDFLORIDAENDODONTICSMANAGEMENTCOMPANYLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">MID-FLORIDA ENDODONTICS MANAGEMENT COMPANY, LLC [Member]</link:label>
    <link:label id="lab_cswc_MIDFLORIDAENDODONTICSMANAGEMENTCOMPANYLLCMember_documentation_en-US" xlink:label="lab_cswc_MIDFLORIDAENDODONTICSMANAGEMENTCOMPANYLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">MID-FLORIDA ENDODONTICS MANAGEMENT COMPANY, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_MIDFLORIDAENDODONTICSMANAGEMENTCOMPANYLLCMember" xlink:href="cswc-20260930.xsd#cswc_MIDFLORIDAENDODONTICSMANAGEMENTCOMPANYLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_MIDFLORIDAENDODONTICSMANAGEMENTCOMPANYLLCMember" xlink:to="lab_cswc_MIDFLORIDAENDODONTICSMANAGEMENTCOMPANYLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfInvestmentsTable_019ff179-4f1a-7541-ba94-82b8fc700a02_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfInvestmentsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Investments [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfInvestmentsTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfInvestmentsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Investments [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfInvestmentsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:to="lab_us-gaap_ScheduleOfInvestmentsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DebtInstrumentCovenantRegulatoryAssetCoverageRatioMinimum_019ff179-4f1b-7627-952d-62372951fca3_terseLabel_en-US" xlink:label="lab_cswc_DebtInstrumentCovenantRegulatoryAssetCoverageRatioMinimum" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maximum asset coverage ratio</link:label>
    <link:label id="lab_cswc_DebtInstrumentCovenantRegulatoryAssetCoverageRatioMinimum_label_en-US" xlink:label="lab_cswc_DebtInstrumentCovenantRegulatoryAssetCoverageRatioMinimum" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Covenant, Regulatory Asset Coverage Ratio, Minimum</link:label>
    <link:label id="lab_cswc_DebtInstrumentCovenantRegulatoryAssetCoverageRatioMinimum_documentation_en-US" xlink:label="lab_cswc_DebtInstrumentCovenantRegulatoryAssetCoverageRatioMinimum" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instrument, Covenant, Regulatory Asset Coverage Ratio, Minimum</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DebtInstrumentCovenantRegulatoryAssetCoverageRatioMinimum" xlink:href="cswc-20260930.xsd#cswc_DebtInstrumentCovenantRegulatoryAssetCoverageRatioMinimum"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DebtInstrumentCovenantRegulatoryAssetCoverageRatioMinimum" xlink:to="lab_cswc_DebtInstrumentCovenantRegulatoryAssetCoverageRatioMinimum" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation_019ff179-4e75-7521-ba89-171b47c1c731_terseLabel_en-US" xlink:label="lab_us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross unrealized depreciation</link:label>
    <link:label id="lab_us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation_019ff179-4e75-7193-94de-861d6de75caa_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Gross unrealized depreciation</link:label>
    <link:label id="lab_us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation_label_en-US" xlink:label="lab_us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Tax Basis, Unrealized Loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation" xlink:to="lab_us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_MERCURYACQUISITION2021LLCEquityInvestmentsMember_019ff179-4f9d-77d4-9c73-5ce442c04561_terseLabel_en-US" xlink:label="lab_cswc_MERCURYACQUISITION2021LLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">MERCURY ACQUISITION 2021, LLC</link:label>
    <link:label id="lab_cswc_MERCURYACQUISITION2021LLCEquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_MERCURYACQUISITION2021LLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">MERCURY ACQUISITION 2021, LLC, Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_MERCURYACQUISITION2021LLCEquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_MERCURYACQUISITION2021LLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">MERCURY ACQUISITION 2021, LLC, Equity Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_MERCURYACQUISITION2021LLCEquityInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_MERCURYACQUISITION2021LLCEquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_MERCURYACQUISITION2021LLCEquityInvestmentsMember" xlink:to="lab_cswc_MERCURYACQUISITION2021LLCEquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DebtInstrumentConvertibleThresholdTradingDaysTrigger_019ff179-4f9d-77e2-9ae0-c5b771b4e374_terseLabel_en-US" xlink:label="lab_cswc_DebtInstrumentConvertibleThresholdTradingDaysTrigger" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Scheduled trading day immediately prior to the maturity date</link:label>
    <link:label id="lab_cswc_DebtInstrumentConvertibleThresholdTradingDaysTrigger_label_en-US" xlink:label="lab_cswc_DebtInstrumentConvertibleThresholdTradingDaysTrigger" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Convertible, Threshold Trading Days Trigger</link:label>
    <link:label id="lab_cswc_DebtInstrumentConvertibleThresholdTradingDaysTrigger_documentation_en-US" xlink:label="lab_cswc_DebtInstrumentConvertibleThresholdTradingDaysTrigger" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instrument, Convertible, Threshold Trading Days Trigger</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DebtInstrumentConvertibleThresholdTradingDaysTrigger" xlink:href="cswc-20260930.xsd#cswc_DebtInstrumentConvertibleThresholdTradingDaysTrigger"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DebtInstrumentConvertibleThresholdTradingDaysTrigger" xlink:to="lab_cswc_DebtInstrumentConvertibleThresholdTradingDaysTrigger" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_EarnoutMember_019ff179-4e75-72fa-ba0b-d8674e820a52_terseLabel_en-US" xlink:label="lab_cswc_EarnoutMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Earnout</link:label>
    <link:label id="lab_cswc_EarnoutMember_label_en-US" xlink:label="lab_cswc_EarnoutMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnout [Member]</link:label>
    <link:label id="lab_cswc_EarnoutMember_documentation_en-US" xlink:label="lab_cswc_EarnoutMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Earnout</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_EarnoutMember" xlink:href="cswc-20260930.xsd#cswc_EarnoutMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_EarnoutMember" xlink:to="lab_cswc_EarnoutMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_019ff179-4e74-7f08-8db8-8304c461a2d4_netLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Leverage commitment amount drawn</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_019ff179-4e74-7e47-89e6-257173c1bfce_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Outstanding Balance</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_019ff179-4e74-7cf8-bec6-6aae7b91375a_verboseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Debenture Amount</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_019ff179-4e74-7be3-b390-598f974bea84_totalLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-Term Debt, Gross</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount" xlink:to="lab_us-gaap_DebtInstrumentCarryingAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtSecuritiesMember_019ff179-4f1a-76c8-a9b9-d9347f72200c_terseLabel_en-US" xlink:label="lab_us-gaap_DebtSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Investments</link:label>
    <link:label id="lab_us-gaap_DebtSecuritiesMember_label_en-US" xlink:label="lab_us-gaap_DebtSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Securities [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtSecuritiesMember" xlink:to="lab_us-gaap_DebtSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019ff179-4e74-78ea-8c7a-857a87439e3b_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Asset Class [Domain]</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Asset Class [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:to="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquityOwnershipPercentageExcludingConsolidatedEntityAndEquityMethodInvestee_019ff179-4f9d-757a-b89b-2b92486c7ae0_terseLabel_en-US" xlink:label="lab_us-gaap_EquityOwnershipPercentageExcludingConsolidatedEntityAndEquityMethodInvestee" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of equity interest</link:label>
    <link:label id="lab_us-gaap_EquityOwnershipPercentageExcludingConsolidatedEntityAndEquityMethodInvestee_label_en-US" xlink:label="lab_us-gaap_EquityOwnershipPercentageExcludingConsolidatedEntityAndEquityMethodInvestee" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Ownership, Excluding Consolidated Entity and Equity Method Investee, Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityOwnershipPercentageExcludingConsolidatedEntityAndEquityMethodInvestee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityOwnershipPercentageExcludingConsolidatedEntityAndEquityMethodInvestee"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityOwnershipPercentageExcludingConsolidatedEntityAndEquityMethodInvestee" xlink:to="lab_us-gaap_EquityOwnershipPercentageExcludingConsolidatedEntityAndEquityMethodInvestee" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsAbstract_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Related Party Transactions [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract" xlink:to="lab_us-gaap_RelatedPartyTransactionsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtPolicyTextBlock_019ff179-4f1a-7e76-a8c4-187ba7f619e7_terseLabel_en-US" xlink:label="lab_us-gaap_DebtPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Issuance Costs, Equity Offering Costs, Earnings Per Share and Realized Losses on Extinguishment of Debt</link:label>
    <link:label id="lab_us-gaap_DebtPolicyTextBlock_label_en-US" xlink:label="lab_us-gaap_DebtPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt, Policy [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtPolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtPolicyTextBlock" xlink:to="lab_us-gaap_DebtPolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_OutstandingRecoveryCompAmt_terseLabel_en-US" xlink:label="lab_ecd_OutstandingRecoveryCompAmt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Compensation Amount</link:label>
    <link:label id="lab_ecd_OutstandingRecoveryCompAmt_label_en-US" xlink:label="lab_ecd_OutstandingRecoveryCompAmt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Outstanding Recovery Compensation Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_OutstandingRecoveryCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_OutstandingRecoveryCompAmt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_OutstandingRecoveryCompAmt" xlink:to="lab_ecd_OutstandingRecoveryCompAmt" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_IndividualAxis_terseLabel_en-US" xlink:label="lab_ecd_IndividualAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Individual:</link:label>
    <link:label id="lab_ecd_IndividualAxis_label_en-US" xlink:label="lab_ecd_IndividualAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Individual [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_IndividualAxis" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_IndividualAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_IndividualAxis" xlink:to="lab_ecd_IndividualAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019ff179-4e75-7dbd-aa5c-455e00c87d7a_terseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average common shares outstanding &#8211; diluted (in shares)</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019ff179-4e75-7691-85a9-36302694671a_totalLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Denominator for diluted weighted average common shares (in shares)</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019ff179-4e75-743b-9e3f-35b83bc98a76_verboseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Weighted-average diluted shares outstanding (in shares)</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Diluted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyInvestmentIncomeLossGrossPerShare_019ff179-4f1a-727f-ac8c-e2ef2a9cf726_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyInvestmentIncomeLossGrossPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment income (in usd per share)</link:label>
    <link:label id="lab_cswc_InvestmentCompanyInvestmentIncomeLossGrossPerShare_label_en-US" xlink:label="lab_cswc_InvestmentCompanyInvestmentIncomeLossGrossPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Investment Income (Loss), Gross, Per Share</link:label>
    <link:label id="lab_cswc_InvestmentCompanyInvestmentIncomeLossGrossPerShare_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyInvestmentIncomeLossGrossPerShare" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Investment Income (Loss), Gross, Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyInvestmentIncomeLossGrossPerShare" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyInvestmentIncomeLossGrossPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyInvestmentIncomeLossGrossPerShare" xlink:to="lab_cswc_InvestmentCompanyInvestmentIncomeLossGrossPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_019ff179-4e75-7924-8db9-584db9322c97_terseLabel_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityEmergingGrowthCompany" xlink:to="lab_dei_EntityEmergingGrowthCompany" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionLineItems_019ff179-4f1a-722d-aa49-0d619d62ad48_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Related Party Transaction [Line Items]</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionLineItems_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Related Party Transaction [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="lab_us-gaap_RelatedPartyTransactionLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativesPolicyTextBlock_01a10b9a-b835-73e0-b790-902a1e75c3c8_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativesPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative Instruments</link:label>
    <link:label id="lab_us-gaap_DerivativesPolicyTextBlock_label_en-US" xlink:label="lab_us-gaap_DerivativesPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives, Policy [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativesPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativesPolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativesPolicyTextBlock" xlink:to="lab_us-gaap_DerivativesPolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_UndrlygSecurityMktPriceChngPct_terseLabel_en-US" xlink:label="lab_ecd_UndrlygSecurityMktPriceChngPct" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Underlying Security Market Price Change</link:label>
    <link:label id="lab_ecd_UndrlygSecurityMktPriceChngPct_label_en-US" xlink:label="lab_ecd_UndrlygSecurityMktPriceChngPct" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Underlying Security Market Price Change, Percent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_UndrlygSecurityMktPriceChngPct" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_UndrlygSecurityMktPriceChngPct"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_UndrlygSecurityMktPriceChngPct" xlink:to="lab_ecd_UndrlygSecurityMktPriceChngPct" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_01a10bea-b035-7a3b-97ff-9c97fa27d485_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">DERIVATIVE INSTRUMENTS</link:label>
    <link:label id="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Instruments and Hedging Activities Disclosure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock" xlink:to="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NonconsolidatedLegalEntityFinancialSupportAmount_019ff179-4f9d-7f70-ada0-fdedecc6bc3c_terseLabel_en-US" xlink:label="lab_us-gaap_NonconsolidatedLegalEntityFinancialSupportAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capital commitments funded</link:label>
    <link:label id="lab_us-gaap_NonconsolidatedLegalEntityFinancialSupportAmount_label_en-US" xlink:label="lab_us-gaap_NonconsolidatedLegalEntityFinancialSupportAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Nonconsolidated Legal Entity, Financial Support Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonconsolidatedLegalEntityFinancialSupportAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NonconsolidatedLegalEntityFinancialSupportAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NonconsolidatedLegalEntityFinancialSupportAmount" xlink:to="lab_us-gaap_NonconsolidatedLegalEntityFinancialSupportAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_HealthcareServicesSectorMember_019ff179-4f9d-7129-8ef1-113254b6698b_terseLabel_en-US" xlink:label="lab_cswc_HealthcareServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Healthcare Services</link:label>
    <link:label id="lab_cswc_HealthcareServicesSectorMember_label_en-US" xlink:label="lab_cswc_HealthcareServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Healthcare Services Sector [Member]</link:label>
    <link:label id="lab_cswc_HealthcareServicesSectorMember_documentation_en-US" xlink:label="lab_cswc_HealthcareServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Healthcare Services Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_HealthcareServicesSectorMember" xlink:href="cswc-20260930.xsd#cswc_HealthcareServicesSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_HealthcareServicesSectorMember" xlink:to="lab_cswc_HealthcareServicesSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_MoneyMarketFundsAtCarryingValue_019ff179-4f9d-7e3a-ac20-ae58d3a4d907_terseLabel_en-US" xlink:label="lab_us-gaap_MoneyMarketFundsAtCarryingValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash held in money market funds</link:label>
    <link:label id="lab_us-gaap_MoneyMarketFundsAtCarryingValue_label_en-US" xlink:label="lab_us-gaap_MoneyMarketFundsAtCarryingValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Equivalent, Money Market Fund, Carrying Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsAtCarryingValue" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MoneyMarketFundsAtCarryingValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MoneyMarketFundsAtCarryingValue" xlink:to="lab_us-gaap_MoneyMarketFundsAtCarryingValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList_019ff179-4f9d-7992-8239-7f57fdb8b919_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList" xlink:to="lab_us-gaap_OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GuaranteeObligationsCurrentCarryingValue_019ff179-4f1a-745a-bb66-e1ed7242f309_verboseLabel_en-US" xlink:label="lab_us-gaap_GuaranteeObligationsCurrentCarryingValue" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Letters of credit drawn</link:label>
    <link:label id="lab_us-gaap_GuaranteeObligationsCurrentCarryingValue_label_en-US" xlink:label="lab_us-gaap_GuaranteeObligationsCurrentCarryingValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Guarantor Obligations, Current Carrying Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeObligationsCurrentCarryingValue" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GuaranteeObligationsCurrentCarryingValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GuaranteeObligationsCurrentCarryingValue" xlink:to="lab_us-gaap_GuaranteeObligationsCurrentCarryingValue" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_O2027M5TaxYearDividendsMember_019ff179-4f9d-7386-8a53-7d82698fe53b_terseLabel_en-US" xlink:label="lab_cswc_O2027M5TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">O 2027 M5 Tax Year Dividends</link:label>
    <link:label id="lab_cswc_O2027M5TaxYearDividendsMember_label_en-US" xlink:label="lab_cswc_O2027M5TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">O 2027 M5 Tax Year Dividends [Member]</link:label>
    <link:label id="lab_cswc_O2027M5TaxYearDividendsMember_documentation_en-US" xlink:label="lab_cswc_O2027M5TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">O 2027 M5 Tax Year Dividends</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_O2027M5TaxYearDividendsMember" xlink:href="cswc-20260930.xsd#cswc_O2027M5TaxYearDividendsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_O2027M5TaxYearDividendsMember" xlink:to="lab_cswc_O2027M5TaxYearDividendsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherReceivables_019ff179-4e75-7256-b02f-d93119f04175_terseLabel_en-US" xlink:label="lab_us-gaap_OtherReceivables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_us-gaap_OtherReceivables_label_en-US" xlink:label="lab_us-gaap_OtherReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherReceivables" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherReceivables" xlink:to="lab_us-gaap_OtherReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ARBORWORKSLLCMember_019ff179-4e74-71be-9ee8-f1848ce1960d_terseLabel_en-US" xlink:label="lab_cswc_ARBORWORKSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Data Processing &amp; Outsourced Services</link:label>
    <link:label id="lab_cswc_ARBORWORKSLLCMember_label_en-US" xlink:label="lab_cswc_ARBORWORKSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ARBORWORKS, LLC [Member]</link:label>
    <link:label id="lab_cswc_ARBORWORKSLLCMember_documentation_en-US" xlink:label="lab_cswc_ARBORWORKSLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ARBORWORKS, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ARBORWORKSLLCMember" xlink:href="cswc-20260930.xsd#cswc_ARBORWORKSLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ARBORWORKSLLCMember" xlink:to="lab_cswc_ARBORWORKSLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_IncomeTaxExpenseBenefitFromSubsidiaries_019ff179-4f9d-7e3e-8592-2f4cbf2dce6e_terseLabel_en-US" xlink:label="lab_cswc_IncomeTaxExpenseBenefitFromSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax provision (benefit) related to Taxable Subsidiary</link:label>
    <link:label id="lab_cswc_IncomeTaxExpenseBenefitFromSubsidiaries_label_en-US" xlink:label="lab_cswc_IncomeTaxExpenseBenefitFromSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Expense (Benefit) From Subsidiaries</link:label>
    <link:label id="lab_cswc_IncomeTaxExpenseBenefitFromSubsidiaries_documentation_en-US" xlink:label="lab_cswc_IncomeTaxExpenseBenefitFromSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Income Tax Expense (Benefit) From Subsidiaries</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_IncomeTaxExpenseBenefitFromSubsidiaries" xlink:href="cswc-20260930.xsd#cswc_IncomeTaxExpenseBenefitFromSubsidiaries"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_IncomeTaxExpenseBenefitFromSubsidiaries" xlink:to="lab_cswc_IncomeTaxExpenseBenefitFromSubsidiaries" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_TreasuryStockCommonMember_019ff179-4f1a-7089-a344-c5359a35e3db_terseLabel_en-US" xlink:label="lab_us-gaap_TreasuryStockCommonMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Treasury Stock</link:label>
    <link:label id="lab_us-gaap_TreasuryStockCommonMember_label_en-US" xlink:label="lab_us-gaap_TreasuryStockCommonMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Treasury Stock, Common [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TreasuryStockCommonMember" xlink:to="lab_us-gaap_TreasuryStockCommonMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_O2026M2TaxYearDividendsMember_019ff179-4e74-7249-9588-ba965c25e4d7_terseLabel_en-US" xlink:label="lab_cswc_O2026M2TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">O 2026 M2 Tax Year Dividends</link:label>
    <link:label id="lab_cswc_O2026M2TaxYearDividendsMember_label_en-US" xlink:label="lab_cswc_O2026M2TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">O 2026 M2 Tax Year Dividends [Member]</link:label>
    <link:label id="lab_cswc_O2026M2TaxYearDividendsMember_documentation_en-US" xlink:label="lab_cswc_O2026M2TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">O 2026 M2 Tax Year Dividends</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_O2026M2TaxYearDividendsMember" xlink:href="cswc-20260930.xsd#cswc_O2026M2TaxYearDividendsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_O2026M2TaxYearDividendsMember" xlink:to="lab_cswc_O2026M2TaxYearDividendsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RepaymentsOfUnsecuredDebt_01a14477-31f7-723e-a706-ae6ac0ffe45e_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfUnsecuredDebt" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Repayments of SBA Debentures</link:label>
    <link:label id="lab_us-gaap_RepaymentsOfUnsecuredDebt_01a14476-9afc-7877-a2f6-9dac6aa6aca3_terseLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfUnsecuredDebt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debentures repaid</link:label>
    <link:label id="lab_us-gaap_RepaymentsOfUnsecuredDebt_label_en-US" xlink:label="lab_us-gaap_RepaymentsOfUnsecuredDebt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repayments of Unsecured Debt</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfUnsecuredDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfUnsecuredDebt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RepaymentsOfUnsecuredDebt" xlink:to="lab_us-gaap_RepaymentsOfUnsecuredDebt" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentOwnedPercentOfTotalAssets_019ff179-4f1a-7e01-8262-2c55f31dd167_terseLabel_en-US" xlink:label="lab_cswc_InvestmentOwnedPercentOfTotalAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percent of total assets</link:label>
    <link:label id="lab_cswc_InvestmentOwnedPercentOfTotalAssets_label_en-US" xlink:label="lab_cswc_InvestmentOwnedPercentOfTotalAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Owned, Percent Of Total Assets</link:label>
    <link:label id="lab_cswc_InvestmentOwnedPercentOfTotalAssets_documentation_en-US" xlink:label="lab_cswc_InvestmentOwnedPercentOfTotalAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Owned, Percent Of Total Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentOwnedPercentOfTotalAssets" xlink:href="cswc-20260930.xsd#cswc_InvestmentOwnedPercentOfTotalAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentOwnedPercentOfTotalAssets" xlink:to="lab_cswc_InvestmentOwnedPercentOfTotalAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ProceedsFromIssuanceOfUnsecuredDebt_019ff179-4e75-7aac-a317-c6c96a98b96d_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfUnsecuredDebt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from issuance of SBA Debentures</link:label>
    <link:label id="lab_us-gaap_ProceedsFromIssuanceOfUnsecuredDebt_label_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfUnsecuredDebt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Issuance of Unsecured Debt</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfUnsecuredDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfUnsecuredDebt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromIssuanceOfUnsecuredDebt" xlink:to="lab_us-gaap_ProceedsFromIssuanceOfUnsecuredDebt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyNetAssetsRollForward_019ff179-4e75-7586-bd14-98aa4eb3aade_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyNetAssetsRollForward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment Company, Net Assets [Roll Forward]</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyNetAssetsRollForward_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyNetAssetsRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Net Assets [Roll Forward]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyNetAssetsRollForward" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyNetAssetsRollForward"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyNetAssetsRollForward" xlink:to="lab_us-gaap_InvestmentCompanyNetAssetsRollForward" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_label_en-US" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Organization, Consolidation and Presentation of Financial Statements [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019ff179-4f1a-7b1a-98b3-2c2b2930ac0e_totalLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Operating Lease, Liability, to be Paid</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ShearwaterResearchInc.Member_019ff179-4f1a-7316-a902-65661ac7214f_terseLabel_en-US" xlink:label="lab_cswc_ShearwaterResearchInc.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SHEARWATER RESEARCH, INC.</link:label>
    <link:label id="lab_cswc_ShearwaterResearchInc.Member_label_en-US" xlink:label="lab_cswc_ShearwaterResearchInc.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Shearwater Research, Inc. [Member]</link:label>
    <link:label id="lab_cswc_ShearwaterResearchInc.Member_documentation_en-US" xlink:label="lab_cswc_ShearwaterResearchInc.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Shearwater Research, Inc.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ShearwaterResearchInc.Member" xlink:href="cswc-20260930.xsd#cswc_ShearwaterResearchInc.Member"/>
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    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019ff179-4f9d-79ba-94d4-680047b64c4a_periodEndLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance (in usd per share)</link:label>
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    <link:label id="lab_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_019ff179-4f1a-7e44-9bf4-cddf50e6c283_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employer matching contribution (up to)</link:label>
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    <link:label id="lab_us-gaap_ValuationTechniqueDomain_label_en-US" xlink:label="lab_us-gaap_ValuationTechniqueDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Valuation Approach and Technique [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationTechniqueDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ValuationTechniqueDomain"/>
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    <link:label id="lab_us-gaap_RepaymentsOfLongTermLinesOfCredit_019ff179-4f9d-7d31-bb75-1b30cf0642db_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfLongTermLinesOfCredit" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Repayments of Credit Facilities</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityCommitmentFeeAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityCommitmentFeeAmount"/>
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    <link:label id="lab_us-gaap_InvestmentCompanySeniorSecurityIndebtednessAssetCoverageRatio_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanySeniorSecurityIndebtednessAssetCoverageRatio" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Senior Security, Indebtedness, Asset Coverage Ratio</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanySeniorSecurityIndebtednessAssetCoverageRatio" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanySeniorSecurityIndebtednessAssetCoverageRatio"/>
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    <link:label id="lab_us-gaap_AccumulatedAmortizationDeferredFinanceCosts_019ff179-4f1a-789e-af4f-4e1d3eac0bcd_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedAmortizationDeferredFinanceCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accumulated amortization</link:label>
    <link:label id="lab_us-gaap_AccumulatedAmortizationDeferredFinanceCosts_label_en-US" xlink:label="lab_us-gaap_AccumulatedAmortizationDeferredFinanceCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated Amortization, Debt Issuance Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedAmortizationDeferredFinanceCosts" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedAmortizationDeferredFinanceCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedAmortizationDeferredFinanceCosts" xlink:to="lab_us-gaap_AccumulatedAmortizationDeferredFinanceCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyNonconsolidatedSubsidiaryDomain_019ff179-4e75-7291-8143-9ec5802a92e5_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyNonconsolidatedSubsidiaryDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment Company, Nonconsolidated Subsidiary [Domain]</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyNonconsolidatedSubsidiaryDomain_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyNonconsolidatedSubsidiaryDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Nonconsolidated Subsidiary [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyNonconsolidatedSubsidiaryDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyNonconsolidatedSubsidiaryDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyNonconsolidatedSubsidiaryDomain" xlink:to="lab_us-gaap_InvestmentCompanyNonconsolidatedSubsidiaryDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_CATBIRDNYCLLCMember_019ff179-4f9d-7d4b-8e25-ecd011576db1_terseLabel_en-US" xlink:label="lab_cswc_CATBIRDNYCLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CATBIRD NYC, LLC</link:label>
    <link:label id="lab_cswc_CATBIRDNYCLLCMember_label_en-US" xlink:label="lab_cswc_CATBIRDNYCLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CATBIRD NYC, LLC [Member]</link:label>
    <link:label id="lab_cswc_CATBIRDNYCLLCMember_documentation_en-US" xlink:label="lab_cswc_CATBIRDNYCLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">CATBIRD NYC, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CATBIRDNYCLLCMember" xlink:href="cswc-20260930.xsd#cswc_CATBIRDNYCLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_CATBIRDNYCLLCMember" xlink:to="lab_cswc_CATBIRDNYCLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_MinimumMember_019ff179-4f1b-740b-9628-30ef4dc92f2b_terseLabel_en-US" xlink:label="lab_srt_MinimumMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Minimum</link:label>
    <link:label id="lab_srt_MinimumMember_label_en-US" xlink:label="lab_srt_MinimumMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Minimum [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_MinimumMember" xlink:to="lab_srt_MinimumMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentTypeAxis_019ff179-4f1a-7e6c-8e61-8d9f74dbba1c_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment Type [Axis]</link:label>
    <link:label id="lab_us-gaap_InvestmentTypeAxis_label_en-US" xlink:label="lab_us-gaap_InvestmentTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentTypeAxis" xlink:to="lab_us-gaap_InvestmentTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentsFairValueDisclosure_019ff179-4e75-7f9d-a181-296434f7132d_totalLabel_en-US" xlink:label="lab_us-gaap_InvestmentsFairValueDisclosure" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total Investments at Fair Value</link:label>
    <link:label id="lab_us-gaap_InvestmentsFairValueDisclosure_label_en-US" xlink:label="lab_us-gaap_InvestmentsFairValueDisclosure" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments, Fair Value Disclosure</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsFairValueDisclosure" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsFairValueDisclosure"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentsFairValueDisclosure" xlink:to="lab_us-gaap_InvestmentsFairValueDisclosure" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_019ff179-4f1a-741a-9a19-a76dd4ccf0e1_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:to="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SPHERIXGLOBALINSIGHTSUSINC.Member_019ff179-4e75-7170-957e-02d306e78a20_terseLabel_en-US" xlink:label="lab_cswc_SPHERIXGLOBALINSIGHTSUSINC.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SPHERIX GLOBAL INSIGHTS US, INC.</link:label>
    <link:label id="lab_cswc_SPHERIXGLOBALINSIGHTSUSINC.Member_label_en-US" xlink:label="lab_cswc_SPHERIXGLOBALINSIGHTSUSINC.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">SPHERIX GLOBAL INSIGHTS US, INC. [Member]</link:label>
    <link:label id="lab_cswc_SPHERIXGLOBALINSIGHTSUSINC.Member_documentation_en-US" xlink:label="lab_cswc_SPHERIXGLOBALINSIGHTSUSINC.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">SPHERIX GLOBAL INSIGHTS US, INC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SPHERIXGLOBALINSIGHTSUSINC.Member" xlink:href="cswc-20260930.xsd#cswc_SPHERIXGLOBALINSIGHTSUSINC.Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SPHERIXGLOBALINSIGHTSUSINC.Member" xlink:to="lab_cswc_SPHERIXGLOBALINSIGHTSUSINC.Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LiabilitiesAbstract_019ff179-4f1a-7277-81b6-423b316f3d9f_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities</link:label>
    <link:label id="lab_us-gaap_LiabilitiesAbstract_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAbstract" xlink:to="lab_us-gaap_LiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_INDINEROGROUPINC.Member_019ff179-4e74-73af-8b7e-898cde455821_terseLabel_en-US" xlink:label="lab_cswc_INDINEROGROUPINC.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">INDINERO GROUP, INC.</link:label>
    <link:label id="lab_cswc_INDINEROGROUPINC.Member_label_en-US" xlink:label="lab_cswc_INDINEROGROUPINC.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">INDINERO GROUP, INC. [Member]</link:label>
    <link:label id="lab_cswc_INDINEROGROUPINC.Member_documentation_en-US" xlink:label="lab_cswc_INDINEROGROUPINC.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">INDINERO GROUP, INC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_INDINEROGROUPINC.Member" xlink:href="cswc-20260930.xsd#cswc_INDINEROGROUPINC.Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_INDINEROGROUPINC.Member" xlink:to="lab_cswc_INDINEROGROUPINC.Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_NonRule10b51ArrAdoptedFlag_terseLabel_en-US" xlink:label="lab_ecd_NonRule10b51ArrAdoptedFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-Rule 10b5-1 Arrangement Adopted</link:label>
    <link:label id="lab_ecd_NonRule10b51ArrAdoptedFlag_label_en-US" xlink:label="lab_ecd_NonRule10b51ArrAdoptedFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-Rule 10b5-1 Arrangement Adopted [Flag]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonRule10b51ArrAdoptedFlag" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_NonRule10b51ArrAdoptedFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_NonRule10b51ArrAdoptedFlag" xlink:to="lab_ecd_NonRule10b51ArrAdoptedFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GainContingenciesTable_019ff179-4f1a-7fc4-87c9-280aadbeaa97_terseLabel_en-US" xlink:label="lab_us-gaap_GainContingenciesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gain Contingencies [Table]</link:label>
    <link:label id="lab_us-gaap_GainContingenciesTable_label_en-US" xlink:label="lab_us-gaap_GainContingenciesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain Contingencies [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainContingenciesTable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainContingenciesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainContingenciesTable" xlink:to="lab_us-gaap_GainContingenciesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember_terseLabel_en-US" xlink:label="lab_ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table</link:label>
    <link:label id="lab_ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember_label_en-US" xlink:label="lab_ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember" xlink:to="lab_ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_019ff179-4f1a-780e-86ba-de562cfb7968_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems"/>
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    <link:label id="lab_us-gaap_OtherLiabilities_019ff179-4f1a-7c8c-aaa0-dd779eac61a5_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other liabilities</link:label>
    <link:label id="lab_us-gaap_OtherLiabilities_label_en-US" xlink:label="lab_us-gaap_OtherLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLiabilities" xlink:to="lab_us-gaap_OtherLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_A2029ConvertibleNotesMember_019ff179-4f9d-76dc-8c7b-cb9a6dc7aba3_terseLabel_en-US" xlink:label="lab_cswc_A2029ConvertibleNotesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2029 Convertible Notes</link:label>
    <link:label id="lab_cswc_A2029ConvertibleNotesMember_label_en-US" xlink:label="lab_cswc_A2029ConvertibleNotesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">2029 Convertible Notes [Member]</link:label>
    <link:label id="lab_cswc_A2029ConvertibleNotesMember_documentation_en-US" xlink:label="lab_cswc_A2029ConvertibleNotesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">2029 Convertible Notes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_A2029ConvertibleNotesMember" xlink:href="cswc-20260930.xsd#cswc_A2029ConvertibleNotesMember"/>
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    <link:label id="lab_cswc_CommonEquityWarrantsMember_019ff179-4f1a-71f2-a541-ca408719dcda_verboseLabel_en-US" xlink:label="lab_cswc_CommonEquityWarrantsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Common equity &amp; warrants</link:label>
    <link:label id="lab_cswc_CommonEquityWarrantsMember_019ff179-4f1a-7430-b628-4036b7e03829_terseLabel_en-US" xlink:label="lab_cswc_CommonEquityWarrantsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common equity &amp; warrants</link:label>
    <link:label id="lab_cswc_CommonEquityWarrantsMember_label_en-US" xlink:label="lab_cswc_CommonEquityWarrantsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Equity &amp; Warrants [Member]</link:label>
    <link:label id="lab_cswc_CommonEquityWarrantsMember_documentation_en-US" xlink:label="lab_cswc_CommonEquityWarrantsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Common Equity &amp; Warrants [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CommonEquityWarrantsMember" xlink:href="cswc-20260930.xsd#cswc_CommonEquityWarrantsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_CommonEquityWarrantsMember" xlink:to="lab_cswc_CommonEquityWarrantsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_HealthcareProductsSectorMember_019ff179-4e75-7464-9b39-9c3607c78feb_terseLabel_en-US" xlink:label="lab_cswc_HealthcareProductsSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Healthcare Products</link:label>
    <link:label id="lab_cswc_HealthcareProductsSectorMember_label_en-US" xlink:label="lab_cswc_HealthcareProductsSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Healthcare Products Sector [Member]</link:label>
    <link:label id="lab_cswc_HealthcareProductsSectorMember_documentation_en-US" xlink:label="lab_cswc_HealthcareProductsSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Healthcare Products Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_HealthcareProductsSectorMember" xlink:href="cswc-20260930.xsd#cswc_HealthcareProductsSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_HealthcareProductsSectorMember" xlink:to="lab_cswc_HealthcareProductsSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockSharesAuthorized_019ff179-4e75-7c3b-917a-4b6c3bbfa75b_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesAuthorized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common stock, authorized (in shares)</link:label>
    <link:label id="lab_us-gaap_CommonStockSharesAuthorized_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesAuthorized" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Shares Authorized</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesAuthorized" xlink:to="lab_us-gaap_CommonStockSharesAuthorized" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfUnvestedRestrictedStockUnitsRollForwardTableTextBlock_019ff179-4f1a-74f0-ac8f-9d65b4badda2_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfUnvestedRestrictedStockUnitsRollForwardTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Restricted Stock Outstanding</link:label>
    <link:label id="lab_us-gaap_ScheduleOfUnvestedRestrictedStockUnitsRollForwardTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfUnvestedRestrictedStockUnitsRollForwardTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfUnvestedRestrictedStockUnitsRollForwardTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfUnvestedRestrictedStockUnitsRollForwardTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfUnvestedRestrictedStockUnitsRollForwardTableTextBlock" xlink:to="lab_us-gaap_ScheduleOfUnvestedRestrictedStockUnitsRollForwardTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ITServicesSectorMember_019ff179-4f9d-729a-a4ca-27bd5d682eee_terseLabel_en-US" xlink:label="lab_cswc_ITServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">IT Services</link:label>
    <link:label id="lab_cswc_ITServicesSectorMember_label_en-US" xlink:label="lab_cswc_ITServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">IT Services Sector [Member]</link:label>
    <link:label id="lab_cswc_ITServicesSectorMember_documentation_en-US" xlink:label="lab_cswc_ITServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">IT Services Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ITServicesSectorMember" xlink:href="cswc-20260930.xsd#cswc_ITServicesSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ITServicesSectorMember" xlink:to="lab_cswc_ITServicesSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_019ff179-4e75-7d9e-9eec-60a2b66a8b3c_terseLabel_en-US" xlink:label="lab_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of shares sold (in shares)</link:label>
    <link:label id="lab_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_label_en-US" xlink:label="lab_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale of Stock, Number of Shares Issued in Transaction</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:to="lab_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DividendIncomeOperatingPaidInCash_019ff179-4f1a-78d6-88c6-a5188bcdd521_terseLabel_en-US" xlink:label="lab_us-gaap_DividendIncomeOperatingPaidInCash" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividend income</link:label>
    <link:label id="lab_us-gaap_DividendIncomeOperatingPaidInCash_label_en-US" xlink:label="lab_us-gaap_DividendIncomeOperatingPaidInCash" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividend Income, Operating, Paid in Cash</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendIncomeOperatingPaidInCash" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendIncomeOperatingPaidInCash"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DividendIncomeOperatingPaidInCash" xlink:to="lab_us-gaap_DividendIncomeOperatingPaidInCash" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SCRIPINC.EquityInvestmentsMember_01a14441-63b9-7252-8c5a-5416fde458af_terseLabel_en-US" xlink:label="lab_cswc_SCRIPINC.EquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SCRIP INC.</link:label>
    <link:label id="lab_cswc_SCRIPINC.EquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_SCRIPINC.EquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">SCRIP INC., Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_SCRIPINC.EquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_SCRIPINC.EquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">SCRIP INC., Equity Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SCRIPINC.EquityInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_SCRIPINC.EquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SCRIPINC.EquityInvestmentsMember" xlink:to="lab_cswc_SCRIPINC.EquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AwardExrcPrice_terseLabel_en-US" xlink:label="lab_ecd_AwardExrcPrice" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exercise Price</link:label>
    <link:label id="lab_ecd_AwardExrcPrice_label_en-US" xlink:label="lab_ecd_AwardExrcPrice" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Exercise Price</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardExrcPrice" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardExrcPrice"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AwardExrcPrice" xlink:to="lab_ecd_AwardExrcPrice" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_019ff179-4f1a-7f68-96c9-bedf0a3a5fd9_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Issuance of common stock under restricted stock plan, net of forfeitures</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:to="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_StockRepurchaseProgramAuthorizedAmount1_019ff179-4f9d-7759-96d2-155c0ac0f0c0_terseLabel_en-US" xlink:label="lab_srt_StockRepurchaseProgramAuthorizedAmount1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Repurchase authorized amount</link:label>
    <link:label id="lab_srt_StockRepurchaseProgramAuthorizedAmount1_label_en-US" xlink:label="lab_srt_StockRepurchaseProgramAuthorizedAmount1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share Repurchase Program, Authorized, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StockRepurchaseProgramAuthorizedAmount1" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StockRepurchaseProgramAuthorizedAmount1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_StockRepurchaseProgramAuthorizedAmount1" xlink:to="lab_srt_StockRepurchaseProgramAuthorizedAmount1" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ACACIABUYERCOVLLCEquitySecuritiesMember_019ff179-4f1b-7072-9c02-b1a7451b4942_terseLabel_en-US" xlink:label="lab_cswc_ACACIABUYERCOVLLCEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ACACIA BUYERCO V LLC</link:label>
    <link:label id="lab_cswc_ACACIABUYERCOVLLCEquitySecuritiesMember_label_en-US" xlink:label="lab_cswc_ACACIABUYERCOVLLCEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ACACIA BUYERCO V LLC, Equity Securities [Member]</link:label>
    <link:label id="lab_cswc_ACACIABUYERCOVLLCEquitySecuritiesMember_documentation_en-US" xlink:label="lab_cswc_ACACIABUYERCOVLLCEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ACACIA BUYERCO V LLC, Equity Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ACACIABUYERCOVLLCEquitySecuritiesMember" xlink:href="cswc-20260930.xsd#cswc_ACACIABUYERCOVLLCEquitySecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ACACIABUYERCOVLLCEquitySecuritiesMember" xlink:to="lab_cswc_ACACIABUYERCOVLLCEquitySecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentQuarterlyReport_019ff179-4f1a-78a6-a72f-ccaa28059e02_terseLabel_en-US" xlink:label="lab_dei_DocumentQuarterlyReport" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Quarterly Report</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentQuarterlyReport"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentQuarterlyReport" xlink:to="lab_dei_DocumentQuarterlyReport" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember_terseLabel_en-US" xlink:label="lab_ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested</link:label>
    <link:label id="lab_ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember_label_en-US" xlink:label="lab_ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember" xlink:to="lab_ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_MONROEBIOMEDICALRESEARCHLLCMember_019ff179-4f1a-7f8e-b25c-3b7e4bbae36a_terseLabel_en-US" xlink:label="lab_cswc_MONROEBIOMEDICALRESEARCHLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">MONROE BIOMEDICAL RESEARCH, LLC</link:label>
    <link:label id="lab_cswc_MONROEBIOMEDICALRESEARCHLLCMember_label_en-US" xlink:label="lab_cswc_MONROEBIOMEDICALRESEARCHLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">MONROE BIOMEDICAL RESEARCH, LLC [Member]</link:label>
    <link:label id="lab_cswc_MONROEBIOMEDICALRESEARCHLLCMember_documentation_en-US" xlink:label="lab_cswc_MONROEBIOMEDICALRESEARCHLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">MONROE BIOMEDICAL RESEARCH, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_MONROEBIOMEDICALRESEARCHLLCMember" xlink:href="cswc-20260930.xsd#cswc_MONROEBIOMEDICALRESEARCHLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_MONROEBIOMEDICALRESEARCHLLCMember" xlink:to="lab_cswc_MONROEBIOMEDICALRESEARCHLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyInvestmentOwnedFairValueMeasurementInput_019ff179-4f1a-782a-afc7-47c5bce0c34b_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyInvestmentOwnedFairValueMeasurementInput" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Significant Level 3 Inputs</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyInvestmentOwnedFairValueMeasurementInput_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyInvestmentOwnedFairValueMeasurementInput" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Investment Owned, Measurement Input</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyInvestmentOwnedFairValueMeasurementInput" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyInvestmentOwnedFairValueMeasurementInput"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyInvestmentOwnedFairValueMeasurementInput" xlink:to="lab_us-gaap_InvestmentCompanyInvestmentOwnedFairValueMeasurementInput" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentOwnedAtCost_019ff179-4f1a-7536-b3fd-fc33af999380_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentOwnedAtCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cost</link:label>
    <link:label id="lab_us-gaap_InvestmentOwnedAtCost_label_en-US" xlink:label="lab_us-gaap_InvestmentOwnedAtCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Owned, Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtCost" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentOwnedAtCost" xlink:to="lab_us-gaap_InvestmentOwnedAtCost" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions_019ff179-4f9d-7835-ba7b-a59019523b67_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross Additions</link:label>
    <link:label id="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions_label_en-US" xlink:label="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments in and Advances to Affiliates, at Fair Value, Gross Additions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions" xlink:to="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ZENFOLIOINCMember_019ff179-4e75-739c-9440-bd0205c21d09_terseLabel_en-US" xlink:label="lab_cswc_ZENFOLIOINCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ZENFOLIO INC.</link:label>
    <link:label id="lab_cswc_ZENFOLIOINCMember_label_en-US" xlink:label="lab_cswc_ZENFOLIOINCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ZENFOLIO INC [Member]</link:label>
    <link:label id="lab_cswc_ZENFOLIOINCMember_documentation_en-US" xlink:label="lab_cswc_ZENFOLIOINCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ZENFOLIO INC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ZENFOLIOINCMember" xlink:href="cswc-20260930.xsd#cswc_ZENFOLIOINCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ZENFOLIOINCMember" xlink:to="lab_cswc_ZENFOLIOINCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AwardsCloseToMnpiDiscTableTextBlock_terseLabel_en-US" xlink:label="lab_ecd_AwardsCloseToMnpiDiscTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Awards Close in Time to MNPI Disclosures, Table</link:label>
    <link:label id="lab_ecd_AwardsCloseToMnpiDiscTableTextBlock_label_en-US" xlink:label="lab_ecd_AwardsCloseToMnpiDiscTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Awards Close in Time to MNPI Disclosures [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardsCloseToMnpiDiscTableTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardsCloseToMnpiDiscTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AwardsCloseToMnpiDiscTableTextBlock" xlink:to="lab_ecd_AwardsCloseToMnpiDiscTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyFinancialHighlightsTextBlock_019ff179-4f1a-760e-afb5-ddfe54b9fce1_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyFinancialHighlightsTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SUMMARY OF PER SHARE INFORMATION</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyFinancialHighlightsTextBlock_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyFinancialHighlightsTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Financial Highlights [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyFinancialHighlightsTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyFinancialHighlightsTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyFinancialHighlightsTextBlock" xlink:to="lab_us-gaap_InvestmentCompanyFinancialHighlightsTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherReceivables_019ff179-4e75-73cf-9064-5cae3728f819_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherReceivables" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">(Increase) decrease in other receivables</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherReceivables_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Other Receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherReceivables" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherReceivables" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquityComponentDomain_019ff179-4e75-7712-945b-374ebb653b31_terseLabel_en-US" xlink:label="lab_us-gaap_EquityComponentDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity Component [Domain]</link:label>
    <link:label id="lab_us-gaap_EquityComponentDomain_label_en-US" xlink:label="lab_us-gaap_EquityComponentDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Component [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityComponentDomain" xlink:to="lab_us-gaap_EquityComponentDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1_019ff179-4f9d-734f-83f5-a43f8b1cde9f_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Realized &amp; Unrealized Gains (Losses)</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1" xlink:to="lab_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_MeasurementInputTypeDomain_019ff179-4e74-7d81-89bb-5b8ab9f3615e_terseLabel_en-US" xlink:label="lab_us-gaap_MeasurementInputTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Measurement Input Type [Domain]</link:label>
    <link:label id="lab_us-gaap_MeasurementInputTypeDomain_label_en-US" xlink:label="lab_us-gaap_MeasurementInputTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measurement Input Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MeasurementInputTypeDomain" xlink:to="lab_us-gaap_MeasurementInputTypeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PaymentsForPurchaseOfInvestmentOperatingActivity_019ff179-4f1a-71f2-861b-1a65368e0dbf_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsForPurchaseOfInvestmentOperatingActivity" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Purchases and originations of investments</link:label>
    <link:label id="lab_us-gaap_PaymentsForPurchaseOfInvestmentOperatingActivity_label_en-US" xlink:label="lab_us-gaap_PaymentsForPurchaseOfInvestmentOperatingActivity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payment for Purchase, Investment, Operating Activity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForPurchaseOfInvestmentOperatingActivity" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForPurchaseOfInvestmentOperatingActivity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsForPurchaseOfInvestmentOperatingActivity" xlink:to="lab_us-gaap_PaymentsForPurchaseOfInvestmentOperatingActivity" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_RODIZIOOPCOLLCMember_019ff179-4f9d-76ca-99a0-b4042bbbf457_terseLabel_en-US" xlink:label="lab_cswc_RODIZIOOPCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">RODIZIO OPCO LLC</link:label>
    <link:label id="lab_cswc_RODIZIOOPCOLLCMember_label_en-US" xlink:label="lab_cswc_RODIZIOOPCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">RODIZIO OPCO LLC [Member]</link:label>
    <link:label id="lab_cswc_RODIZIOOPCOLLCMember_documentation_en-US" xlink:label="lab_cswc_RODIZIOOPCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">RODIZIO OPCO LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_RODIZIOOPCOLLCMember" xlink:href="cswc-20260930.xsd#cswc_RODIZIOOPCOLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_RODIZIOOPCOLLCMember" xlink:to="lab_cswc_RODIZIOOPCOLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentTypeConcentrationRiskMember_019ff179-4f1a-77ee-94c1-21fcefede722_terseLabel_en-US" xlink:label="lab_cswc_InvestmentTypeConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment Type</link:label>
    <link:label id="lab_cswc_InvestmentTypeConcentrationRiskMember_label_en-US" xlink:label="lab_cswc_InvestmentTypeConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Type Concentration Risk [Member]</link:label>
    <link:label id="lab_cswc_InvestmentTypeConcentrationRiskMember_documentation_en-US" xlink:label="lab_cswc_InvestmentTypeConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Type Concentration Risk</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentTypeConcentrationRiskMember" xlink:href="cswc-20260930.xsd#cswc_InvestmentTypeConcentrationRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentTypeConcentrationRiskMember" xlink:to="lab_cswc_InvestmentTypeConcentrationRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_019ff179-4f1a-74c1-bc63-848cf3d2e1c1_terseLabel_en-US" xlink:label="lab_us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net proceeds received</link:label>
    <link:label id="lab_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_label_en-US" xlink:label="lab_us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale of Stock, Consideration Received on Transaction</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:to="lab_us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_TrdArrAdoptionDate_terseLabel_en-US" xlink:label="lab_ecd_TrdArrAdoptionDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adoption Date</link:label>
    <link:label id="lab_ecd_TrdArrAdoptionDate_label_en-US" xlink:label="lab_ecd_TrdArrAdoptionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading Arrangement Adoption Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrAdoptionDate" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TrdArrAdoptionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_TrdArrAdoptionDate" xlink:to="lab_ecd_TrdArrAdoptionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ProceedsFromIssuanceOrSaleOfEquity_019ff179-4e75-7e36-8861-c691f9350d60_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross proceeds received</link:label>
    <link:label id="lab_us-gaap_ProceedsFromIssuanceOrSaleOfEquity_label_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Issuance or Sale of Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:to="lab_us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_RepurchaseAgreementCounterpartyNameDomain_019ff179-4f9d-7728-bd3b-eac0fdaf2428_terseLabel_en-US" xlink:label="lab_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Counterparty Name [Domain]</link:label>
    <link:label id="lab_srt_RepurchaseAgreementCounterpartyNameDomain_label_en-US" xlink:label="lab_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Counterparty Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:to="lab_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DWSBUYERLLCMember_019ff179-4f1a-7b85-ab47-ccfc599cd7a0_terseLabel_en-US" xlink:label="lab_cswc_DWSBUYERLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">DWS BUYER LLC</link:label>
    <link:label id="lab_cswc_DWSBUYERLLCMember_label_en-US" xlink:label="lab_cswc_DWSBUYERLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">DWS BUYER LLC [Member]</link:label>
    <link:label id="lab_cswc_DWSBUYERLLCMember_documentation_en-US" xlink:label="lab_cswc_DWSBUYERLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">DWS BUYER LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DWSBUYERLLCMember" xlink:href="cswc-20260930.xsd#cswc_DWSBUYERLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DWSBUYERLLCMember" xlink:to="lab_cswc_DWSBUYERLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_VPMOVEPURCHASERINCMember_019ff179-4f1a-7e3c-bcc8-f72a0588f342_terseLabel_en-US" xlink:label="lab_cswc_VPMOVEPURCHASERINCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">VP MOVE PURCHASER, INC.</link:label>
    <link:label id="lab_cswc_VPMOVEPURCHASERINCMember_label_en-US" xlink:label="lab_cswc_VPMOVEPURCHASERINCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">VP MOVE PURCHASER, INC [Member]</link:label>
    <link:label id="lab_cswc_VPMOVEPURCHASERINCMember_documentation_en-US" xlink:label="lab_cswc_VPMOVEPURCHASERINCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">VP MOVE PURCHASER, INC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_VPMOVEPURCHASERINCMember" xlink:href="cswc-20260930.xsd#cswc_VPMOVEPURCHASERINCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_VPMOVEPURCHASERINCMember" xlink:to="lab_cswc_VPMOVEPURCHASERINCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_HHINSPIREACQUISITIONINCMember_019ff179-4e74-70c5-b4ea-5ff708940a6f_terseLabel_en-US" xlink:label="lab_cswc_HHINSPIREACQUISITIONINCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">HH-INSPIRE ACQUISITION, INC.</link:label>
    <link:label id="lab_cswc_HHINSPIREACQUISITIONINCMember_label_en-US" xlink:label="lab_cswc_HHINSPIREACQUISITIONINCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">HH-INSPIRE ACQUISITION, INC. [Member]</link:label>
    <link:label id="lab_cswc_HHINSPIREACQUISITIONINCMember_documentation_en-US" xlink:label="lab_cswc_HHINSPIREACQUISITIONINCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">HH-INSPIRE ACQUISITION, INC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_HHINSPIREACQUISITIONINCMember" xlink:href="cswc-20260930.xsd#cswc_HHINSPIREACQUISITIONINCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_HHINSPIREACQUISITIONINCMember" xlink:to="lab_cswc_HHINSPIREACQUISITIONINCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DebtInstrumentRatePeriodDomain_019ff179-4e75-76b2-86f9-d30a2ae375de_terseLabel_en-US" xlink:label="lab_cswc_DebtInstrumentRatePeriodDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Rate Period [Domain]</link:label>
    <link:label id="lab_cswc_DebtInstrumentRatePeriodDomain_label_en-US" xlink:label="lab_cswc_DebtInstrumentRatePeriodDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Rate Period [Domain]</link:label>
    <link:label id="lab_cswc_DebtInstrumentRatePeriodDomain_documentation_en-US" xlink:label="lab_cswc_DebtInstrumentRatePeriodDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instrument Term [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DebtInstrumentRatePeriodDomain" xlink:href="cswc-20260930.xsd#cswc_DebtInstrumentRatePeriodDomain"/>
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    <link:label id="lab_us-gaap_TechnologySectorMember_019ff179-4e75-7c8b-be72-6aff09a17ee8_terseLabel_en-US" xlink:label="lab_us-gaap_TechnologySectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Technology Products &amp; Components</link:label>
    <link:label id="lab_us-gaap_TechnologySectorMember_label_en-US" xlink:label="lab_us-gaap_TechnologySectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Technology Sector [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TechnologySectorMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TechnologySectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TechnologySectorMember" xlink:to="lab_us-gaap_TechnologySectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_TrdArrIndTitle_terseLabel_en-US" xlink:label="lab_ecd_TrdArrIndTitle" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Title</link:label>
    <link:label id="lab_ecd_TrdArrIndTitle_label_en-US" xlink:label="lab_ecd_TrdArrIndTitle" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading Arrangement, Individual Title</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrIndTitle" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TrdArrIndTitle"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_TrdArrIndTitle" xlink:to="lab_ecd_TrdArrIndTitle" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt_terseLabel_en-US" xlink:label="lab_ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Forgone Recovery due to Disqualification of Tax Benefits, Amount</link:label>
    <link:label id="lab_ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt_label_en-US" xlink:label="lab_ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Forgone Recovery due to Disqualification of Tax Benefits, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:to="lab_ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AccountingPoliciesAbstract_label_en-US" xlink:label="lab_us-gaap_AccountingPoliciesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounting Policies [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountingPoliciesAbstract" xlink:to="lab_us-gaap_AccountingPoliciesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_RestatementDoesNotRequireRecoveryTextBlock_terseLabel_en-US" xlink:label="lab_ecd_RestatementDoesNotRequireRecoveryTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restatement does not require Recovery</link:label>
    <link:label id="lab_ecd_RestatementDoesNotRequireRecoveryTextBlock_label_en-US" xlink:label="lab_ecd_RestatementDoesNotRequireRecoveryTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restatement Does Not Require Recovery [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_RestatementDoesNotRequireRecoveryTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_RestatementDoesNotRequireRecoveryTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_RestatementDoesNotRequireRecoveryTextBlock" xlink:to="lab_ecd_RestatementDoesNotRequireRecoveryTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeaseLiability_019ff179-4f1a-745b-bdd4-b72d6acda341_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiability" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating lease liability</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseLiability_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiability" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Lease, Liability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseLiability" xlink:to="lab_us-gaap_OperatingLeaseLiability" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_InsiderTrdPoliciesProcAdoptedFlag_terseLabel_en-US" xlink:label="lab_ecd_InsiderTrdPoliciesProcAdoptedFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Insider Trading Policies and Procedures Adopted</link:label>
    <link:label id="lab_ecd_InsiderTrdPoliciesProcAdoptedFlag_label_en-US" xlink:label="lab_ecd_InsiderTrdPoliciesProcAdoptedFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Insider Trading Policies and Procedures Adopted [Flag]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_InsiderTrdPoliciesProcAdoptedFlag" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_InsiderTrdPoliciesProcAdoptedFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_InsiderTrdPoliciesProcAdoptedFlag" xlink:to="lab_ecd_InsiderTrdPoliciesProcAdoptedFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_OtherFinancialInstrumentsMember_019ff179-4f1a-7d0c-a30c-67eb02080b52_terseLabel_en-US" xlink:label="lab_cswc_OtherFinancialInstrumentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Financial Instruments</link:label>
    <link:label id="lab_cswc_OtherFinancialInstrumentsMember_label_en-US" xlink:label="lab_cswc_OtherFinancialInstrumentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Financial Instruments [Member]</link:label>
    <link:label id="lab_cswc_OtherFinancialInstrumentsMember_documentation_en-US" xlink:label="lab_cswc_OtherFinancialInstrumentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Financial Instruments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_OtherFinancialInstrumentsMember" xlink:href="cswc-20260930.xsd#cswc_OtherFinancialInstrumentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_OtherFinancialInstrumentsMember" xlink:to="lab_cswc_OtherFinancialInstrumentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_COMMANDGROUPACQUISITIONLLCEquityInvestmentsMember_01a1443f-3a63-7c2b-97fa-bacba4a48fef_terseLabel_en-US" xlink:label="lab_cswc_COMMANDGROUPACQUISITIONLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">COMMAND GROUP ACQUISITION, LLC</link:label>
    <link:label id="lab_cswc_COMMANDGROUPACQUISITIONLLCEquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_COMMANDGROUPACQUISITIONLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">COMMAND GROUP ACQUISITION, LLC, Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_COMMANDGROUPACQUISITIONLLCEquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_COMMANDGROUPACQUISITIONLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">COMMAND GROUP ACQUISITION, LLC, Equity Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_COMMANDGROUPACQUISITIONLLCEquityInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_COMMANDGROUPACQUISITIONLLCEquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_COMMANDGROUPACQUISITIONLLCEquityInvestmentsMember" xlink:to="lab_cswc_COMMANDGROUPACQUISITIONLLCEquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_AMERICANPETRESORTLLCMember_019ff179-4f1a-7ac4-bb32-2bde1887d055_terseLabel_en-US" xlink:label="lab_cswc_AMERICANPETRESORTLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">AMERICAN PET RESORT, LLC</link:label>
    <link:label id="lab_cswc_AMERICANPETRESORTLLCMember_label_en-US" xlink:label="lab_cswc_AMERICANPETRESORTLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">AMERICAN PET RESORT, LLC [Member]</link:label>
    <link:label id="lab_cswc_AMERICANPETRESORTLLCMember_documentation_en-US" xlink:label="lab_cswc_AMERICANPETRESORTLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">AMERICAN PET RESORT, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_AMERICANPETRESORTLLCMember" xlink:href="cswc-20260930.xsd#cswc_AMERICANPETRESORTLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_AMERICANPETRESORTLLCMember" xlink:to="lab_cswc_AMERICANPETRESORTLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock_019ff179-4e75-7f45-a7e2-3b4b848dbc49_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Credit Facilities</link:label>
    <link:label id="lab_us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Line of Credit Facilities [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock" xlink:to="lab_us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2032Member_019ff179-4f9d-7dfa-9090-ab4fff266742_terseLabel_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2032Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debentures due September 2032</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2032Member_label_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2032Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures, Due September 2032 [Member]</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2032Member_documentation_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2032Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures, Due September 2032</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SmallBusinessAdministrationDebenturesDueSeptember2032Member" xlink:href="cswc-20260930.xsd#cswc_SmallBusinessAdministrationDebenturesDueSeptember2032Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SmallBusinessAdministrationDebenturesDueSeptember2032Member" xlink:to="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2032Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_019ff179-4f1b-7bdb-9a1b-e1aa1682b5a8_terseLabel_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">COMMITMENTS AND CONTINGENCIES</link:label>
    <link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments and Contingencies Disclosure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:to="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_CompActuallyPaidVsNetIncomeTextBlock_terseLabel_en-US" xlink:label="lab_ecd_CompActuallyPaidVsNetIncomeTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Compensation Actually Paid vs. Net Income</link:label>
    <link:label id="lab_ecd_CompActuallyPaidVsNetIncomeTextBlock_label_en-US" xlink:label="lab_ecd_CompActuallyPaidVsNetIncomeTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Compensation Actually Paid vs. Net Income [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_CompActuallyPaidVsNetIncomeTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_CompActuallyPaidVsNetIncomeTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_CompActuallyPaidVsNetIncomeTextBlock" xlink:to="lab_ecd_CompActuallyPaidVsNetIncomeTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ExciseAndSalesTaxes_019ff179-4f1a-7887-b2a2-7de4b28e68c0_terseLabel_en-US" xlink:label="lab_us-gaap_ExciseAndSalesTaxes" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Excise tax</link:label>
    <link:label id="lab_us-gaap_ExciseAndSalesTaxes_label_en-US" xlink:label="lab_us-gaap_ExciseAndSalesTaxes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Excise and Sales Taxes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ExciseAndSalesTaxes" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ExciseAndSalesTaxes"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ExciseAndSalesTaxes" xlink:to="lab_us-gaap_ExciseAndSalesTaxes" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_WeightedAverageMember_019ff179-4f1a-7b72-86a6-cb6c8ff74d72_terseLabel_en-US" xlink:label="lab_srt_WeightedAverageMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted Average</link:label>
    <link:label id="lab_srt_WeightedAverageMember_label_en-US" xlink:label="lab_srt_WeightedAverageMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_WeightedAverageMember" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_WeightedAverageMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_WeightedAverageMember" xlink:to="lab_srt_WeightedAverageMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AllAdjToCompMember_terseLabel_en-US" xlink:label="lab_ecd_AllAdjToCompMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">All Adjustments to Compensation</link:label>
    <link:label id="lab_ecd_AllAdjToCompMember_label_en-US" xlink:label="lab_ecd_AllAdjToCompMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">All Adjustments to Compensation [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllAdjToCompMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AllAdjToCompMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AllAdjToCompMember" xlink:to="lab_ecd_AllAdjToCompMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeTaxPolicyTextBlock_019ff179-4f1a-7190-9b6b-2c7be976ad78_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Federal Income Taxes and Deferred Taxes</link:label>
    <link:label id="lab_us-gaap_IncomeTaxPolicyTextBlock_label_en-US" xlink:label="lab_us-gaap_IncomeTaxPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax, Policy [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxPolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxPolicyTextBlock" xlink:to="lab_us-gaap_IncomeTaxPolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_019ff179-4f9d-7d6d-8145-11bcde7cfa6e_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash used in operating activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Provided by (Used in) Operating Activity, Including Discontinued Operation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SBICIIMember_019ff179-4f9d-79d3-8c6e-9d9c3215a637_terseLabel_en-US" xlink:label="lab_cswc_SBICIIMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SBIC II</link:label>
    <link:label id="lab_cswc_SBICIIMember_label_en-US" xlink:label="lab_cswc_SBICIIMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">SBIC II [Member]</link:label>
    <link:label id="lab_cswc_SBICIIMember_documentation_en-US" xlink:label="lab_cswc_SBICIIMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">SBIC II</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SBICIIMember" xlink:href="cswc-20260930.xsd#cswc_SBICIIMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SBICIIMember" xlink:to="lab_cswc_SBICIIMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DebtSecuritiesSecondLienMember_019ff179-4e75-79f5-a315-dc8f499561c3_terseLabel_en-US" xlink:label="lab_cswc_DebtSecuritiesSecondLienMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Second lien loans</link:label>
    <link:label id="lab_cswc_DebtSecuritiesSecondLienMember_label_en-US" xlink:label="lab_cswc_DebtSecuritiesSecondLienMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Securities, Second Lien [Member]</link:label>
    <link:label id="lab_cswc_DebtSecuritiesSecondLienMember_documentation_en-US" xlink:label="lab_cswc_DebtSecuritiesSecondLienMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Securities, Second Lien</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DebtSecuritiesSecondLienMember" xlink:href="cswc-20260930.xsd#cswc_DebtSecuritiesSecondLienMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DebtSecuritiesSecondLienMember" xlink:to="lab_cswc_DebtSecuritiesSecondLienMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_GOODVETSVETERINARYSERVICESLLCMember_01a13e31-e011-7a0c-870a-c695dfc3fddb_terseLabel_en-US" xlink:label="lab_cswc_GOODVETSVETERINARYSERVICESLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">GOODVETS VETERINARY SERVICES LLC</link:label>
    <link:label id="lab_cswc_GOODVETSVETERINARYSERVICESLLCMember_label_en-US" xlink:label="lab_cswc_GOODVETSVETERINARYSERVICESLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">GOODVETS VETERINARY SERVICES LLC [Member]</link:label>
    <link:label id="lab_cswc_GOODVETSVETERINARYSERVICESLLCMember_documentation_en-US" xlink:label="lab_cswc_GOODVETSVETERINARYSERVICESLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">GOODVETS VETERINARY SERVICES LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_GOODVETSVETERINARYSERVICESLLCMember" xlink:href="cswc-20260930.xsd#cswc_GOODVETSVETERINARYSERVICESLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_GOODVETSVETERINARYSERVICESLLCMember" xlink:to="lab_cswc_GOODVETSVETERINARYSERVICESLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_WESTTERMITEPESTMANAGEMENTLLCMember_01a13a4d-9b4a-7939-acac-e39667f78838_terseLabel_en-US" xlink:label="lab_cswc_WESTTERMITEPESTMANAGEMENTLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">WEST TERMITE &amp; PEST MANAGEMENT, LLC</link:label>
    <link:label id="lab_cswc_WESTTERMITEPESTMANAGEMENTLLCMember_label_en-US" xlink:label="lab_cswc_WESTTERMITEPESTMANAGEMENTLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">WEST TERMITE &amp; PEST MANAGEMENT, LLC [Member]</link:label>
    <link:label id="lab_cswc_WESTTERMITEPESTMANAGEMENTLLCMember_documentation_en-US" xlink:label="lab_cswc_WESTTERMITEPESTMANAGEMENTLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">WEST TERMITE &amp; PEST MANAGEMENT, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_WESTTERMITEPESTMANAGEMENTLLCMember" xlink:href="cswc-20260930.xsd#cswc_WESTTERMITEPESTMANAGEMENTLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_WESTTERMITEPESTMANAGEMENTLLCMember" xlink:to="lab_cswc_WESTTERMITEPESTMANAGEMENTLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeStatementAbstract_label_en-US" xlink:label="lab_us-gaap_IncomeStatementAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Statement [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeStatementAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementAbstract" xlink:to="lab_us-gaap_IncomeStatementAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockholdersEquityAbstract_019ff179-4f9d-7b98-883a-603c776ed0a6_terseLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net Assets</link:label>
    <link:label id="lab_us-gaap_StockholdersEquityAbstract_label_en-US" xlink:label="lab_us-gaap_StockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity, Attributable to Parent [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquityAbstract" xlink:to="lab_us-gaap_StockholdersEquityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentTransitionReport_019ff179-4e75-786b-8a79-4f49a93b5784_terseLabel_en-US" xlink:label="lab_dei_DocumentTransitionReport" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Transition Report</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentTransitionReport"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentTransitionReport" xlink:to="lab_dei_DocumentTransitionReport" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ACCELERATIONPARTNERSLLCEquityInvestmentsMember_019ff179-4f1a-7b65-8e35-75997e29050c_terseLabel_en-US" xlink:label="lab_cswc_ACCELERATIONPARTNERSLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ACCELERATION PARTNERS, LLC</link:label>
    <link:label id="lab_cswc_ACCELERATIONPARTNERSLLCEquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_ACCELERATIONPARTNERSLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ACCELERATION PARTNERS, LLC, Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_ACCELERATIONPARTNERSLLCEquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_ACCELERATIONPARTNERSLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ACCELERATION PARTNERS, LLC, Equity Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ACCELERATIONPARTNERSLLCEquityInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_ACCELERATIONPARTNERSLLCEquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ACCELERATIONPARTNERSLLCEquityInvestmentsMember" xlink:to="lab_cswc_ACCELERATIONPARTNERSLLCEquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingExpensesAbstract_019ff179-4f1a-73c4-a44f-4fe44a792869_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingExpensesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating expenses:</link:label>
    <link:label id="lab_us-gaap_OperatingExpensesAbstract_label_en-US" xlink:label="lab_us-gaap_OperatingExpensesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Expenses [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpensesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingExpensesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingExpensesAbstract" xlink:to="lab_us-gaap_OperatingExpensesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ITAHoldingsGroupLLCMember_019ff179-4f9d-768b-9e62-458e7487aa5a_terseLabel_en-US" xlink:label="lab_cswc_ITAHoldingsGroupLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ITA HOLDINGS GROUP, LLC</link:label>
    <link:label id="lab_cswc_ITAHoldingsGroupLLCMember_label_en-US" xlink:label="lab_cswc_ITAHoldingsGroupLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ITA Holdings Group, LLC [Member]</link:label>
    <link:label id="lab_cswc_ITAHoldingsGroupLLCMember_documentation_en-US" xlink:label="lab_cswc_ITAHoldingsGroupLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ITA Holdings Group, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ITAHoldingsGroupLLCMember" xlink:href="cswc-20260930.xsd#cswc_ITAHoldingsGroupLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ITAHoldingsGroupLLCMember" xlink:to="lab_cswc_ITAHoldingsGroupLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockAppreciationRightsSARSMember_terseLabel_en-US" xlink:label="lab_us-gaap_StockAppreciationRightsSARSMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock Appreciation Rights (SARs)</link:label>
    <link:label id="lab_us-gaap_StockAppreciationRightsSARSMember_label_en-US" xlink:label="lab_us-gaap_StockAppreciationRightsSARSMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Appreciation Rights (SARs) [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockAppreciationRightsSARSMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockAppreciationRightsSARSMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockAppreciationRightsSARSMember" xlink:to="lab_us-gaap_StockAppreciationRightsSARSMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_TaxBasisOfInvestmentsGrossUnrealizedAppreciation_019ff179-4f9d-7108-b276-366c90320583_terseLabel_en-US" xlink:label="lab_us-gaap_TaxBasisOfInvestmentsGrossUnrealizedAppreciation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross unrealized appreciation</link:label>
    <link:label id="lab_us-gaap_TaxBasisOfInvestmentsGrossUnrealizedAppreciation_label_en-US" xlink:label="lab_us-gaap_TaxBasisOfInvestmentsGrossUnrealizedAppreciation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Tax Basis, Unrealized Gain</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxBasisOfInvestmentsGrossUnrealizedAppreciation" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TaxBasisOfInvestmentsGrossUnrealizedAppreciation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TaxBasisOfInvestmentsGrossUnrealizedAppreciation" xlink:to="lab_us-gaap_TaxBasisOfInvestmentsGrossUnrealizedAppreciation" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DebtInstrumentConvertiblePerShareDividendThreshold_019ff179-4f1b-7518-88b7-f3247dee9c1e_terseLabel_en-US" xlink:label="lab_cswc_DebtInstrumentConvertiblePerShareDividendThreshold" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividend increase (in usd per share)</link:label>
    <link:label id="lab_cswc_DebtInstrumentConvertiblePerShareDividendThreshold_label_en-US" xlink:label="lab_cswc_DebtInstrumentConvertiblePerShareDividendThreshold" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Convertible, Per Share Dividend Threshold</link:label>
    <link:label id="lab_cswc_DebtInstrumentConvertiblePerShareDividendThreshold_documentation_en-US" xlink:label="lab_cswc_DebtInstrumentConvertiblePerShareDividendThreshold" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instrument, Convertible, Per Share Dividend Threshold</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DebtInstrumentConvertiblePerShareDividendThreshold" xlink:href="cswc-20260930.xsd#cswc_DebtInstrumentConvertiblePerShareDividendThreshold"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DebtInstrumentConvertiblePerShareDividendThreshold" xlink:to="lab_cswc_DebtInstrumentConvertiblePerShareDividendThreshold" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentBasisSpreadVariableRate_019ff179-4f1a-7326-83ec-9e7c3edd3dbc_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentBasisSpreadVariableRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Variable rate</link:label>
    <link:label id="lab_us-gaap_InvestmentBasisSpreadVariableRate_label_en-US" xlink:label="lab_us-gaap_InvestmentBasisSpreadVariableRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Basis Spread, Variable Rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentBasisSpreadVariableRate" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentBasisSpreadVariableRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentBasisSpreadVariableRate" xlink:to="lab_us-gaap_InvestmentBasisSpreadVariableRate" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CityAreaCode_019ff179-4f9d-7e99-b6b6-e95b259a098e_terseLabel_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">City Area Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CityAreaCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CityAreaCode" xlink:to="lab_dei_CityAreaCode" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyInvestmentIncomeLossOperatingExpensesPerShare_019ff179-4f1a-733a-8d82-8d02978c3452_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyInvestmentIncomeLossOperatingExpensesPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating expenses (in usd per share)</link:label>
    <link:label id="lab_cswc_InvestmentCompanyInvestmentIncomeLossOperatingExpensesPerShare_label_en-US" xlink:label="lab_cswc_InvestmentCompanyInvestmentIncomeLossOperatingExpensesPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Investment Income (Loss), Operating Expenses, Per Share</link:label>
    <link:label id="lab_cswc_InvestmentCompanyInvestmentIncomeLossOperatingExpensesPerShare_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyInvestmentIncomeLossOperatingExpensesPerShare" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Investment Income (Loss), Operating Expenses, Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyInvestmentIncomeLossOperatingExpensesPerShare" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyInvestmentIncomeLossOperatingExpensesPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyInvestmentIncomeLossOperatingExpensesPerShare" xlink:to="lab_cswc_InvestmentCompanyInvestmentIncomeLossOperatingExpensesPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GeographicConcentrationRiskMember_019ff179-4f1a-7a4b-9812-328aa2b05a8e_terseLabel_en-US" xlink:label="lab_us-gaap_GeographicConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Geographic</link:label>
    <link:label id="lab_us-gaap_GeographicConcentrationRiskMember_label_en-US" xlink:label="lab_us-gaap_GeographicConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographic Concentration Risk [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeographicConcentrationRiskMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GeographicConcentrationRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GeographicConcentrationRiskMember" xlink:to="lab_us-gaap_GeographicConcentrationRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_MediaAndMarketingSectorMember_019ff179-4f1a-756d-96a5-e5d78ce7d63a_terseLabel_en-US" xlink:label="lab_cswc_MediaAndMarketingSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Media &amp; Marketing</link:label>
    <link:label id="lab_cswc_MediaAndMarketingSectorMember_label_en-US" xlink:label="lab_cswc_MediaAndMarketingSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Media And Marketing Sector [Member]</link:label>
    <link:label id="lab_cswc_MediaAndMarketingSectorMember_documentation_en-US" xlink:label="lab_cswc_MediaAndMarketingSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Media And Marketing Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_MediaAndMarketingSectorMember" xlink:href="cswc-20260930.xsd#cswc_MediaAndMarketingSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_MediaAndMarketingSectorMember" xlink:to="lab_cswc_MediaAndMarketingSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_ForgoneRecoveryIndName_terseLabel_en-US" xlink:label="lab_ecd_ForgoneRecoveryIndName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Name</link:label>
    <link:label id="lab_ecd_ForgoneRecoveryIndName_label_en-US" xlink:label="lab_ecd_ForgoneRecoveryIndName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Forgone Recovery, Individual Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryIndName" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ForgoneRecoveryIndName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_ForgoneRecoveryIndName" xlink:to="lab_ecd_ForgoneRecoveryIndName" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_NonGaapMeasureDescriptionTextBlock_terseLabel_en-US" xlink:label="lab_ecd_NonGaapMeasureDescriptionTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-GAAP Measure Description</link:label>
    <link:label id="lab_ecd_NonGaapMeasureDescriptionTextBlock_label_en-US" xlink:label="lab_ecd_NonGaapMeasureDescriptionTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-GAAP Measure Description [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonGaapMeasureDescriptionTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_NonGaapMeasureDescriptionTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_NonGaapMeasureDescriptionTextBlock" xlink:to="lab_ecd_NonGaapMeasureDescriptionTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019ff179-4f1a-78d5-866b-11ae7e1103d5_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted Average Fair Value Per Share at grant date</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_NumberOfRevolvingCreditFacility_019ff179-4f9d-764a-b901-13e10434031d_terseLabel_en-US" xlink:label="lab_cswc_NumberOfRevolvingCreditFacility" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of revolving credit facility</link:label>
    <link:label id="lab_cswc_NumberOfRevolvingCreditFacility_label_en-US" xlink:label="lab_cswc_NumberOfRevolvingCreditFacility" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Revolving Credit Facility</link:label>
    <link:label id="lab_cswc_NumberOfRevolvingCreditFacility_documentation_en-US" xlink:label="lab_cswc_NumberOfRevolvingCreditFacility" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Revolving Credit Facility</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_NumberOfRevolvingCreditFacility" xlink:href="cswc-20260930.xsd#cswc_NumberOfRevolvingCreditFacility"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_NumberOfRevolvingCreditFacility" xlink:to="lab_cswc_NumberOfRevolvingCreditFacility" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityDomain_019ff179-4f1a-73b7-995b-25319142fafe_terseLabel_en-US" xlink:label="lab_dei_EntityDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityDomain" xlink:to="lab_dei_EntityDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_MUENSTERMILLINGCOMPANYLLCMember_019ff179-4f1a-76ed-bd0c-0ab25d124978_terseLabel_en-US" xlink:label="lab_cswc_MUENSTERMILLINGCOMPANYLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">MUENSTER MILLING COMPANY, LLC</link:label>
    <link:label id="lab_cswc_MUENSTERMILLINGCOMPANYLLCMember_label_en-US" xlink:label="lab_cswc_MUENSTERMILLINGCOMPANYLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">MUENSTER MILLING COMPANY, LLC [Member]</link:label>
    <link:label id="lab_cswc_MUENSTERMILLINGCOMPANYLLCMember_documentation_en-US" xlink:label="lab_cswc_MUENSTERMILLINGCOMPANYLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">MUENSTER MILLING COMPANY, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_MUENSTERMILLINGCOMPANYLLCMember" xlink:href="cswc-20260930.xsd#cswc_MUENSTERMILLINGCOMPANYLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_MUENSTERMILLINGCOMPANYLLCMember" xlink:to="lab_cswc_MUENSTERMILLINGCOMPANYLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyMarketValuePerShare_019ff179-4f1a-74aa-ba67-b73d520b89e6_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyMarketValuePerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Per share market value at the end of the period (in usd per share)</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyMarketValuePerShare_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyMarketValuePerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Market Value, Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyMarketValuePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyMarketValuePerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyMarketValuePerShare" xlink:to="lab_us-gaap_InvestmentCompanyMarketValuePerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestAndDividendIncomeOperating_019ff179-4e75-784f-9fa7-adae6275705c_terseLabel_en-US" xlink:label="lab_us-gaap_InterestAndDividendIncomeOperating" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amount of Interest or Dividends Credited in Income</link:label>
    <link:label id="lab_us-gaap_InterestAndDividendIncomeOperating_label_en-US" xlink:label="lab_us-gaap_InterestAndDividendIncomeOperating" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest and Dividend Income, Operating</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndDividendIncomeOperating" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestAndDividendIncomeOperating"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestAndDividendIncomeOperating" xlink:to="lab_us-gaap_InterestAndDividendIncomeOperating" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InterestIncomePaidInKindAbstract_019ff179-4e75-75d7-988e-7bcb4070e4df_terseLabel_en-US" xlink:label="lab_cswc_InterestIncomePaidInKindAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Payment-in-kind interest income:</link:label>
    <link:label id="lab_cswc_InterestIncomePaidInKindAbstract_label_en-US" xlink:label="lab_cswc_InterestIncomePaidInKindAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Income, Paid-in-kind [Abstract]</link:label>
    <link:label id="lab_cswc_InterestIncomePaidInKindAbstract_documentation_en-US" xlink:label="lab_cswc_InterestIncomePaidInKindAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Interest Income, Paid-in-kind</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InterestIncomePaidInKindAbstract" xlink:href="cswc-20260930.xsd#cswc_InterestIncomePaidInKindAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InterestIncomePaidInKindAbstract" xlink:to="lab_cswc_InterestIncomePaidInKindAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_019ff179-4f9d-79de-b3b8-f42fbf9be0c0_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock-Based Compensation</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Payment Arrangement [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:to="lab_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_019ff179-4f9d-74b1-9a6c-e52fa9c4cd72_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Decrease in other assets</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Other Operating Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DeferredTaxLiabilities_019ff179-4f9d-7526-82ca-6f002ea9217b_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax liabilities</link:label>
    <link:label id="lab_us-gaap_DeferredTaxLiabilities_019ff179-4f9d-7aaa-825c-4a624d9e195d_negatedTotalLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xml:lang="en-US">Total net deferred tax (liabilities) assets</link:label>
    <link:label id="lab_us-gaap_DeferredTaxLiabilities_label_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Liabilities, Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredTaxLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxLiabilities" xlink:to="lab_us-gaap_DeferredTaxLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues_019ff179-4f9d-7107-98b2-00bf2e13cec9_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Issuance of common stock (in shares)</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Shares, New Issues</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:to="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DYNAMICCOMMUNITIESLLCEquitySecuritiesMember_019ff179-4f9d-724f-a009-1de68c1cab46_terseLabel_en-US" xlink:label="lab_cswc_DYNAMICCOMMUNITIESLLCEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">DYNAMIC COMMUNITIES, LLC</link:label>
    <link:label id="lab_cswc_DYNAMICCOMMUNITIESLLCEquitySecuritiesMember_label_en-US" xlink:label="lab_cswc_DYNAMICCOMMUNITIESLLCEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">DYNAMIC COMMUNITIES, LLC, Equity Securities [Member]</link:label>
    <link:label id="lab_cswc_DYNAMICCOMMUNITIESLLCEquitySecuritiesMember_documentation_en-US" xlink:label="lab_cswc_DYNAMICCOMMUNITIESLLCEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">DYNAMIC COMMUNITIES, LLC, Equity Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DYNAMICCOMMUNITIESLLCEquitySecuritiesMember" xlink:href="cswc-20260930.xsd#cswc_DYNAMICCOMMUNITIESLLCEquitySecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DYNAMICCOMMUNITIESLLCEquitySecuritiesMember" xlink:to="lab_cswc_DYNAMICCOMMUNITIESLLCEquitySecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DebtInstrumentCovenantInterestCoverageRatioMinimum_019ff179-4f1a-7bc0-b99a-6d7bd3c25cb0_terseLabel_en-US" xlink:label="lab_cswc_DebtInstrumentCovenantInterestCoverageRatioMinimum" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest coverage ratio</link:label>
    <link:label id="lab_cswc_DebtInstrumentCovenantInterestCoverageRatioMinimum_label_en-US" xlink:label="lab_cswc_DebtInstrumentCovenantInterestCoverageRatioMinimum" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Covenant, Interest Coverage Ratio, Minimum</link:label>
    <link:label id="lab_cswc_DebtInstrumentCovenantInterestCoverageRatioMinimum_documentation_en-US" xlink:label="lab_cswc_DebtInstrumentCovenantInterestCoverageRatioMinimum" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instrument, Covenant, Interest Coverage Ratio, Minimum</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DebtInstrumentCovenantInterestCoverageRatioMinimum" xlink:href="cswc-20260930.xsd#cswc_DebtInstrumentCovenantInterestCoverageRatioMinimum"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DebtInstrumentCovenantInterestCoverageRatioMinimum" xlink:to="lab_cswc_DebtInstrumentCovenantInterestCoverageRatioMinimum" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfSaleOfStockBySubsidiaryOrEquityMethodInvesteeDisclosureTextBlock_019ff179-4f1a-7e4a-a245-3cce8d7c7b3c_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfSaleOfStockBySubsidiaryOrEquityMethodInvesteeDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Shares Sold</link:label>
    <link:label id="lab_us-gaap_ScheduleOfSaleOfStockBySubsidiaryOrEquityMethodInvesteeDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfSaleOfStockBySubsidiaryOrEquityMethodInvesteeDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Sale of Stock by Subsidiary or Equity Method Investee Disclosure [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSaleOfStockBySubsidiaryOrEquityMethodInvesteeDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfSaleOfStockBySubsidiaryOrEquityMethodInvesteeDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfSaleOfStockBySubsidiaryOrEquityMethodInvesteeDisclosureTextBlock" xlink:to="lab_us-gaap_ScheduleOfSaleOfStockBySubsidiaryOrEquityMethodInvesteeDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_EnergyServicesMidstreamSectorMember_019ff179-4f9d-77c5-85e6-ffa658ea57c7_terseLabel_en-US" xlink:label="lab_cswc_EnergyServicesMidstreamSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Energy Services</link:label>
    <link:label id="lab_cswc_EnergyServicesMidstreamSectorMember_label_en-US" xlink:label="lab_cswc_EnergyServicesMidstreamSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Energy Services (Midstream) Sector [Member]</link:label>
    <link:label id="lab_cswc_EnergyServicesMidstreamSectorMember_documentation_en-US" xlink:label="lab_cswc_EnergyServicesMidstreamSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Energy Services (Midstream) Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_EnergyServicesMidstreamSectorMember" xlink:href="cswc-20260930.xsd#cswc_EnergyServicesMidstreamSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_EnergyServicesMidstreamSectorMember" xlink:to="lab_cswc_EnergyServicesMidstreamSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentOwnedBalancePrincipalAmount_019ff179-4f1a-7363-ba95-b4537a138cb7_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentOwnedBalancePrincipalAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Principal</link:label>
    <link:label id="lab_us-gaap_InvestmentOwnedBalancePrincipalAmount_019ff179-4f1a-71f0-b36e-150accde92a1_verboseLabel_en-US" xlink:label="lab_us-gaap_InvestmentOwnedBalancePrincipalAmount" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Principal Amount - Debt Investments</link:label>
    <link:label id="lab_us-gaap_InvestmentOwnedBalancePrincipalAmount_label_en-US" xlink:label="lab_us-gaap_InvestmentOwnedBalancePrincipalAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Owned, Balance, Principal Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedBalancePrincipalAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedBalancePrincipalAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentOwnedBalancePrincipalAmount" xlink:to="lab_us-gaap_InvestmentOwnedBalancePrincipalAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpense_019ff179-4f9d-7fb6-9d91-87f2eb06223e_verboseLabel_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Share-based compensation</link:label>
    <link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpense_019ff179-4f9d-7467-86ac-00c00201e825_terseLabel_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based compensation expense</link:label>
    <link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpense_label_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Payment Arrangement, Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AllocatedShareBasedCompensationExpense" xlink:to="lab_us-gaap_AllocatedShareBasedCompensationExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyRatioToAverageNetAssetsAndSupplementalDataAbstract_019ff179-4e74-73f9-a80e-398795d7bb63_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyRatioToAverageNetAssetsAndSupplementalDataAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Ratios and Supplemental Data</link:label>
    <link:label id="lab_cswc_InvestmentCompanyRatioToAverageNetAssetsAndSupplementalDataAbstract_label_en-US" xlink:label="lab_cswc_InvestmentCompanyRatioToAverageNetAssetsAndSupplementalDataAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Ratio To Average Net Assets And Supplemental Data [Abstract]</link:label>
    <link:label id="lab_cswc_InvestmentCompanyRatioToAverageNetAssetsAndSupplementalDataAbstract_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyRatioToAverageNetAssetsAndSupplementalDataAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Ratio To Average Net Assets And Supplemental Data [Abstract]</link:label>
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    <link:label id="lab_us-gaap_CashAndCashEquivalentsPolicyTextBlock_019ff179-4e75-7feb-950c-9bc3dc1f3f6b_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents</link:label>
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    <link:label id="lab_cswc_BETTERTHANHOMEINC.Member_019ff179-4f1a-7e4b-8919-b67ff97553f2_terseLabel_en-US" xlink:label="lab_cswc_BETTERTHANHOMEINC.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">BETTER THAN HOME, INC.</link:label>
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    <link:label id="lab_cswc_POOLSERVICEPARTNERSINCMember_documentation_en-US" xlink:label="lab_cswc_POOLSERVICEPARTNERSINCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">POOL SERVICE PARTNERS, INC</link:label>
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_019ff179-4e74-7eab-ab78-484a60d3bba9_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash provided by financing activities</link:label>
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    <link:label id="lab_us-gaap_InvestmentAffiliatedIssuerControlledMember_019ff179-4f1a-75eb-a8c3-4b9776e2ccfb_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentAffiliatedIssuerControlledMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Control investments</link:label>
    <link:label id="lab_us-gaap_InvestmentAffiliatedIssuerControlledMember_label_en-US" xlink:label="lab_us-gaap_InvestmentAffiliatedIssuerControlledMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Affiliated Issuer, Controlled [Member]</link:label>
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    <link:label id="lab_us-gaap_InvestmentCompanyTotalReturn_019ff179-4e75-7457-9be3-51b17a7e3871_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyTotalReturn" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total return based on change in NAV</link:label>
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    <link:label id="lab_cswc_CADMIUMLLCMember_019ff179-4f1a-7f01-a671-fffbe3b41539_terseLabel_en-US" xlink:label="lab_cswc_CADMIUMLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CADMIUM, LLC</link:label>
    <link:label id="lab_cswc_CADMIUMLLCMember_label_en-US" xlink:label="lab_cswc_CADMIUMLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CADMIUM, LLC [Member]</link:label>
    <link:label id="lab_cswc_CADMIUMLLCMember_documentation_en-US" xlink:label="lab_cswc_CADMIUMLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">CADMIUM, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CADMIUMLLCMember" xlink:href="cswc-20260930.xsd#cswc_CADMIUMLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_CADMIUMLLCMember" xlink:to="lab_cswc_CADMIUMLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019ff179-4f1a-78c9-b96d-ce75a2a8dd58_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from financing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyExpenseRatioExcludingInterestAfterFeeWaiverAndIncentiveFeeDeduction_019ff179-4f9d-7cf8-b495-b62e4246a0ef_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyExpenseRatioExcludingInterestAfterFeeWaiverAndIncentiveFeeDeduction" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Ratio of operating expenses (excluding interest expense) to average net assets</link:label>
    <link:label id="lab_cswc_InvestmentCompanyExpenseRatioExcludingInterestAfterFeeWaiverAndIncentiveFeeDeduction_label_en-US" xlink:label="lab_cswc_InvestmentCompanyExpenseRatioExcludingInterestAfterFeeWaiverAndIncentiveFeeDeduction" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Expense Ratio, Excluding Interest, After Fee Waiver And Incentive Fee Deduction</link:label>
    <link:label id="lab_cswc_InvestmentCompanyExpenseRatioExcludingInterestAfterFeeWaiverAndIncentiveFeeDeduction_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyExpenseRatioExcludingInterestAfterFeeWaiverAndIncentiveFeeDeduction" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Expense Ratio, Excluding Interest, After Fee Waiver And Incentive Fee Deduction</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyExpenseRatioExcludingInterestAfterFeeWaiverAndIncentiveFeeDeduction" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyExpenseRatioExcludingInterestAfterFeeWaiverAndIncentiveFeeDeduction"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyExpenseRatioExcludingInterestAfterFeeWaiverAndIncentiveFeeDeduction" xlink:to="lab_cswc_InvestmentCompanyExpenseRatioExcludingInterestAfterFeeWaiverAndIncentiveFeeDeduction" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019ff179-4f1a-7a2b-b1ef-694a9c901f8a_terseLabel_en-US" xlink:label="lab_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial Instruments [Domain]</link:label>
    <link:label id="lab_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_label_en-US" xlink:label="lab_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Instruments [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:to="lab_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_TRAFERALLCFKATRINITY3LLCDebtInvestmentsMember_019ff179-4e75-74c9-8b96-6e318b079bd6_terseLabel_en-US" xlink:label="lab_cswc_TRAFERALLCFKATRINITY3LLCDebtInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">TRAFERA, LLC (FKA TRINITY 3, LLC)</link:label>
    <link:label id="lab_cswc_TRAFERALLCFKATRINITY3LLCDebtInvestmentsMember_label_en-US" xlink:label="lab_cswc_TRAFERALLCFKATRINITY3LLCDebtInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">TRAFERA, LLC (FKA TRINITY 3, LLC), Debt Investments [Member]</link:label>
    <link:label id="lab_cswc_TRAFERALLCFKATRINITY3LLCDebtInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_TRAFERALLCFKATRINITY3LLCDebtInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">TRAFERA, LLC (FKA TRINITY 3, LLC), Debt Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_TRAFERALLCFKATRINITY3LLCDebtInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_TRAFERALLCFKATRINITY3LLCDebtInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_TRAFERALLCFKATRINITY3LLCDebtInvestmentsMember" xlink:to="lab_cswc_TRAFERALLCFKATRINITY3LLCDebtInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeAssets_01a10bf5-81da-7745-b587-e138ed27945e_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross Amount of Recognized Assets</link:label>
    <link:label id="lab_us-gaap_DerivativeAssets_label_en-US" xlink:label="lab_us-gaap_DerivativeAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Asset</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeAssets" xlink:to="lab_us-gaap_DerivativeAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherIncome_019ff179-4f9d-7e5e-aa77-96bee40caadf_terseLabel_en-US" xlink:label="lab_us-gaap_OtherIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other income</link:label>
    <link:label id="lab_us-gaap_OtherIncome_label_en-US" xlink:label="lab_us-gaap_OtherIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIncome" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherIncome" xlink:to="lab_us-gaap_OtherIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_A2010PlanMember_019ff179-4e74-77f2-be18-e17c8d12d13e_terseLabel_en-US" xlink:label="lab_cswc_A2010PlanMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2010 Plan</link:label>
    <link:label id="lab_cswc_A2010PlanMember_label_en-US" xlink:label="lab_cswc_A2010PlanMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">2010 Plan [Member]</link:label>
    <link:label id="lab_cswc_A2010PlanMember_documentation_en-US" xlink:label="lab_cswc_A2010PlanMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">2010 Plan</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_A2010PlanMember" xlink:href="cswc-20260930.xsd#cswc_A2010PlanMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_A2010PlanMember" xlink:to="lab_cswc_A2010PlanMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AwardUndrlygSecuritiesAmt_terseLabel_en-US" xlink:label="lab_ecd_AwardUndrlygSecuritiesAmt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Underlying Securities</link:label>
    <link:label id="lab_ecd_AwardUndrlygSecuritiesAmt_label_en-US" xlink:label="lab_ecd_AwardUndrlygSecuritiesAmt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Underlying Securities Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardUndrlygSecuritiesAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardUndrlygSecuritiesAmt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AwardUndrlygSecuritiesAmt" xlink:to="lab_ecd_AwardUndrlygSecuritiesAmt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues_019ff179-4f1a-702f-b9db-34e5a9c201fa_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Issuance of common stock</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Value, New Issues</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:to="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_LIGHTNINGINTERMEDIATEIILLCMember_019ff179-4e75-73b6-bc15-c0c4b3faad80_terseLabel_en-US" xlink:label="lab_cswc_LIGHTNINGINTERMEDIATEIILLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">LIGHTNING INTERMEDIATE II, LLC</link:label>
    <link:label id="lab_cswc_LIGHTNINGINTERMEDIATEIILLCMember_label_en-US" xlink:label="lab_cswc_LIGHTNINGINTERMEDIATEIILLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">LIGHTNING INTERMEDIATE II, LLC [Member]</link:label>
    <link:label id="lab_cswc_LIGHTNINGINTERMEDIATEIILLCMember_documentation_en-US" xlink:label="lab_cswc_LIGHTNINGINTERMEDIATEIILLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">LIGHTNING INTERMEDIATE II, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_LIGHTNINGINTERMEDIATEIILLCMember" xlink:href="cswc-20260930.xsd#cswc_LIGHTNINGINTERMEDIATEIILLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_LIGHTNINGINTERMEDIATEIILLCMember" xlink:to="lab_cswc_LIGHTNINGINTERMEDIATEIILLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyFinancialHighlightsTableTextBlock_019ff179-4f1a-75da-abe3-d0b1f198322e_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyFinancialHighlightsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Per Share Data</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyFinancialHighlightsTableTextBlock_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyFinancialHighlightsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Financial Highlights [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyFinancialHighlightsTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyFinancialHighlightsTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyFinancialHighlightsTableTextBlock" xlink:to="lab_us-gaap_InvestmentCompanyFinancialHighlightsTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PreferredStockMember_019ff179-4f1a-7e7b-ad84-8b2f9dade5f0_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Preferred equity</link:label>
    <link:label id="lab_us-gaap_PreferredStockMember_label_en-US" xlink:label="lab_us-gaap_PreferredStockMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred Stock [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockMember" xlink:to="lab_us-gaap_PreferredStockMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_019ff179-4f1a-7b95-9985-a4e4cd9223dc_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Remaining number of shares authorized (in shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019ff179-4f1a-7c6d-9a0c-adf4f897c0ea_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Related Party Transactions, by Related Party [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Related Party Transaction [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_PYRAMIDSACQUISITIONLLCMember_019ff179-4e74-7e87-91dd-2f882d355e1d_terseLabel_en-US" xlink:label="lab_cswc_PYRAMIDSACQUISITIONLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">PYRAMIDS ACQUISITION, LLC</link:label>
    <link:label id="lab_cswc_PYRAMIDSACQUISITIONLLCMember_label_en-US" xlink:label="lab_cswc_PYRAMIDSACQUISITIONLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">PYRAMIDS ACQUISITION, LLC [Member]</link:label>
    <link:label id="lab_cswc_PYRAMIDSACQUISITIONLLCMember_documentation_en-US" xlink:label="lab_cswc_PYRAMIDSACQUISITIONLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">PYRAMIDS ACQUISITION, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_PYRAMIDSACQUISITIONLLCMember" xlink:href="cswc-20260930.xsd#cswc_PYRAMIDSACQUISITIONLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_PYRAMIDSACQUISITIONLLCMember" xlink:to="lab_cswc_PYRAMIDSACQUISITIONLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_label_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments and Contingencies Disclosure [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:to="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AllTradingArrangementsMember_terseLabel_en-US" xlink:label="lab_ecd_AllTradingArrangementsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">All Trading Arrangements</link:label>
    <link:label id="lab_ecd_AllTradingArrangementsMember_label_en-US" xlink:label="lab_ecd_AllTradingArrangementsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">All Trading Arrangements [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllTradingArrangementsMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AllTradingArrangementsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AllTradingArrangementsMember" xlink:to="lab_ecd_AllTradingArrangementsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_OtherPerfMeasureAmt_terseLabel_en-US" xlink:label="lab_ecd_OtherPerfMeasureAmt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Performance Measure, Amount</link:label>
    <link:label id="lab_ecd_OtherPerfMeasureAmt_label_en-US" xlink:label="lab_ecd_OtherPerfMeasureAmt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Performance Measure, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_OtherPerfMeasureAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_OtherPerfMeasureAmt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_OtherPerfMeasureAmt" xlink:to="lab_ecd_OtherPerfMeasureAmt" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AwardTmgMnpiCnsdrdFlag_terseLabel_en-US" xlink:label="lab_ecd_AwardTmgMnpiCnsdrdFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Award Timing MNPI Considered</link:label>
    <link:label id="lab_ecd_AwardTmgMnpiCnsdrdFlag_label_en-US" xlink:label="lab_ecd_AwardTmgMnpiCnsdrdFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Timing MNPI Considered [Flag]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgMnpiCnsdrdFlag" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardTmgMnpiCnsdrdFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AwardTmgMnpiCnsdrdFlag" xlink:to="lab_ecd_AwardTmgMnpiCnsdrdFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CurrentFiscalYearEndDate_019ff179-4f1a-792f-b68c-37851834be5a_terseLabel_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current Fiscal Year End Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CurrentFiscalYearEndDate" xlink:to="lab_dei_CurrentFiscalYearEndDate" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentOwnedBalanceShares_019ff179-4f1b-73c2-aaf8-46b2e26f5ec7_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentOwnedBalanceShares" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Shares (in shares)</link:label>
    <link:label id="lab_us-gaap_InvestmentOwnedBalanceShares_label_en-US" xlink:label="lab_us-gaap_InvestmentOwnedBalanceShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Owned, Balance, Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedBalanceShares" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedBalanceShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentOwnedBalanceShares" xlink:to="lab_us-gaap_InvestmentOwnedBalanceShares" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_O2027Q3DividendsMember_01a16517-5c3c-7a87-9370-c92377a463f3_terseLabel_en-US" xlink:label="lab_cswc_O2027Q3DividendsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">O 2027 Q3 Dividends</link:label>
    <link:label id="lab_cswc_O2027Q3DividendsMember_label_en-US" xlink:label="lab_cswc_O2027Q3DividendsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">O 2027 Q3 Dividends [Member]</link:label>
    <link:label id="lab_cswc_O2027Q3DividendsMember_documentation_en-US" xlink:label="lab_cswc_O2027Q3DividendsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">O 2027 Q3 Dividends</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_O2027Q3DividendsMember" xlink:href="cswc-20260930.xsd#cswc_O2027Q3DividendsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_O2027Q3DividendsMember" xlink:to="lab_cswc_O2027Q3DividendsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_NonPeoNeoAvgTotalCompAmt_terseLabel_en-US" xlink:label="lab_ecd_NonPeoNeoAvgTotalCompAmt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-PEO NEO Average Total Compensation Amount</link:label>
    <link:label id="lab_ecd_NonPeoNeoAvgTotalCompAmt_label_en-US" xlink:label="lab_ecd_NonPeoNeoAvgTotalCompAmt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-PEO NEO Average Total Compensation Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonPeoNeoAvgTotalCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_NonPeoNeoAvgTotalCompAmt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_NonPeoNeoAvgTotalCompAmt" xlink:to="lab_ecd_NonPeoNeoAvgTotalCompAmt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinancialServicesSectorMember_019ff179-4f1a-74bc-ae99-70949f70b711_terseLabel_en-US" xlink:label="lab_us-gaap_FinancialServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial Services</link:label>
    <link:label id="lab_us-gaap_FinancialServicesSectorMember_019ff179-4f1a-7935-8764-98b80ca228d0_verboseLabel_en-US" xlink:label="lab_us-gaap_FinancialServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Financial Services</link:label>
    <link:label id="lab_us-gaap_FinancialServicesSectorMember_label_en-US" xlink:label="lab_us-gaap_FinancialServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Services Sector [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialServicesSectorMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialServicesSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancialServicesSectorMember" xlink:to="lab_us-gaap_FinancialServicesSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember_terseLabel_en-US" xlink:label="lab_ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year</link:label>
    <link:label id="lab_ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember_label_en-US" xlink:label="lab_ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember" xlink:to="lab_ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockDividendsPerShareDeclared_019ff179-4f9d-7703-ba42-fd922d995a46_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockDividendsPerShareDeclared" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends declared (in usd per share)</link:label>
    <link:label id="lab_us-gaap_CommonStockDividendsPerShareDeclared_label_en-US" xlink:label="lab_us-gaap_CommonStockDividendsPerShareDeclared" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Dividends, Per Share, Declared</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockDividendsPerShareDeclared"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockDividendsPerShareDeclared" xlink:to="lab_us-gaap_CommonStockDividendsPerShareDeclared" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityFileNumber_019ff179-4f1a-755e-b755-034ceb06d7d7_terseLabel_en-US" xlink:label="lab_dei_EntityFileNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity File Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFileNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFileNumber" xlink:to="lab_dei_EntityFileNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AdditionalCashFlowElementsOperatingActivitiesAbstract_019ff179-4f9d-7fd4-a6cd-253b5f3225d8_terseLabel_en-US" xlink:label="lab_us-gaap_AdditionalCashFlowElementsOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from operating activities</link:label>
    <link:label id="lab_us-gaap_AdditionalCashFlowElementsOperatingActivitiesAbstract_label_en-US" xlink:label="lab_us-gaap_AdditionalCashFlowElementsOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional Cash Flow Elements, Operating Activity [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalCashFlowElementsOperatingActivitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalCashFlowElementsOperatingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdditionalCashFlowElementsOperatingActivitiesAbstract" xlink:to="lab_us-gaap_AdditionalCashFlowElementsOperatingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyCommonStockWithheldForPayrollTaxesUponVestingOfRestrictedStockPerShare_019ff179-4f1a-7f29-8630-a33ea90c109c_negatedTerseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyCommonStockWithheldForPayrollTaxesUponVestingOfRestrictedStockPerShare" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Common stock withheld for payroll taxes upon vesting of restricted stock (in usd per share)</link:label>
    <link:label id="lab_cswc_InvestmentCompanyCommonStockWithheldForPayrollTaxesUponVestingOfRestrictedStockPerShare_label_en-US" xlink:label="lab_cswc_InvestmentCompanyCommonStockWithheldForPayrollTaxesUponVestingOfRestrictedStockPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Common Stock Withheld For Payroll Taxes Upon Vesting Of Restricted Stock, Per Share</link:label>
    <link:label id="lab_cswc_InvestmentCompanyCommonStockWithheldForPayrollTaxesUponVestingOfRestrictedStockPerShare_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyCommonStockWithheldForPayrollTaxesUponVestingOfRestrictedStockPerShare" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Common Stock Withheld For Payroll Taxes Upon Vesting Of Restricted Stock, Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyCommonStockWithheldForPayrollTaxesUponVestingOfRestrictedStockPerShare" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyCommonStockWithheldForPayrollTaxesUponVestingOfRestrictedStockPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyCommonStockWithheldForPayrollTaxesUponVestingOfRestrictedStockPerShare" xlink:to="lab_cswc_InvestmentCompanyCommonStockWithheldForPayrollTaxesUponVestingOfRestrictedStockPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_O2027Q2DividendsMember_019ff179-4f9d-79eb-9648-d7e25509b478_terseLabel_en-US" xlink:label="lab_cswc_O2027Q2DividendsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">O 2027 Q2 Dividends</link:label>
    <link:label id="lab_cswc_O2027Q2DividendsMember_label_en-US" xlink:label="lab_cswc_O2027Q2DividendsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">O 2027 Q2 Dividends [Member]</link:label>
    <link:label id="lab_cswc_O2027Q2DividendsMember_documentation_en-US" xlink:label="lab_cswc_O2027Q2DividendsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">O 2027 Q2 Dividends</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_O2027Q2DividendsMember" xlink:href="cswc-20260930.xsd#cswc_O2027Q2DividendsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_O2027Q2DividendsMember" xlink:to="lab_cswc_O2027Q2DividendsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_LOCALWEBLEADSLLCMember_019ff179-4f9d-7c33-ae03-b2a771f16a19_terseLabel_en-US" xlink:label="lab_cswc_LOCALWEBLEADSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">LOCAL WEB LEADS, LLC</link:label>
    <link:label id="lab_cswc_LOCALWEBLEADSLLCMember_label_en-US" xlink:label="lab_cswc_LOCALWEBLEADSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">LOCAL WEB LEADS, LLC [Member]</link:label>
    <link:label id="lab_cswc_LOCALWEBLEADSLLCMember_documentation_en-US" xlink:label="lab_cswc_LOCALWEBLEADSLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">LOCAL WEB LEADS, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_LOCALWEBLEADSLLCMember" xlink:href="cswc-20260930.xsd#cswc_LOCALWEBLEADSLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_LOCALWEBLEADSLLCMember" xlink:to="lab_cswc_LOCALWEBLEADSLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_RecoveryOfErrCompDisclosureLineItems_label_en-US" xlink:label="lab_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Recovery of Erroneously Awarded Compensation Disclosure [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_RecoveryOfErrCompDisclosureLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="lab_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_MeasureAxis_terseLabel_en-US" xlink:label="lab_ecd_MeasureAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Measure:</link:label>
    <link:label id="lab_ecd_MeasureAxis_label_en-US" xlink:label="lab_ecd_MeasureAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measure [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_MeasureAxis" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_MeasureAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_MeasureAxis" xlink:to="lab_ecd_MeasureAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_A2021EmployeePlanMember_019ff179-4f9d-7c37-8a29-9d0c1d5d7b9e_terseLabel_en-US" xlink:label="lab_cswc_A2021EmployeePlanMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2021 Employee Plan</link:label>
    <link:label id="lab_cswc_A2021EmployeePlanMember_label_en-US" xlink:label="lab_cswc_A2021EmployeePlanMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">2021 Employee Plan [Member]</link:label>
    <link:label id="lab_cswc_A2021EmployeePlanMember_documentation_en-US" xlink:label="lab_cswc_A2021EmployeePlanMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">2021 Employee Plan</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_A2021EmployeePlanMember" xlink:href="cswc-20260930.xsd#cswc_A2021EmployeePlanMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_A2021EmployeePlanMember" xlink:to="lab_cswc_A2021EmployeePlanMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_NetRealizedLossOnInvestmentsNetOfTaxAndDisposalOfFixedAssets_019ff179-4e75-73a6-bd88-763e065d0912_terseLabel_en-US" xlink:label="lab_cswc_NetRealizedLossOnInvestmentsNetOfTaxAndDisposalOfFixedAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net realized loss on investments, net of tax, and disposal of fixed assets</link:label>
    <link:label id="lab_cswc_NetRealizedLossOnInvestmentsNetOfTaxAndDisposalOfFixedAssets_label_en-US" xlink:label="lab_cswc_NetRealizedLossOnInvestmentsNetOfTaxAndDisposalOfFixedAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Realized Loss on Investments, Net of Tax, and Disposal of Fixed Assets</link:label>
    <link:label id="lab_cswc_NetRealizedLossOnInvestmentsNetOfTaxAndDisposalOfFixedAssets_documentation_en-US" xlink:label="lab_cswc_NetRealizedLossOnInvestmentsNetOfTaxAndDisposalOfFixedAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Net Realized Loss on Investments, Net of Tax, and Disposal of Fixed Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_NetRealizedLossOnInvestmentsNetOfTaxAndDisposalOfFixedAssets" xlink:href="cswc-20260930.xsd#cswc_NetRealizedLossOnInvestmentsNetOfTaxAndDisposalOfFixedAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_NetRealizedLossOnInvestmentsNetOfTaxAndDisposalOfFixedAssets" xlink:to="lab_cswc_NetRealizedLossOnInvestmentsNetOfTaxAndDisposalOfFixedAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_CONSERTUSINC.FKAENSTOAINC.Member_01a13e4c-9c7a-737e-98d3-e0264be8049a_terseLabel_en-US" xlink:label="lab_cswc_CONSERTUSINC.FKAENSTOAINC.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CONSERTUS, INC. (FKA ENSTOA, INC.)</link:label>
    <link:label id="lab_cswc_CONSERTUSINC.FKAENSTOAINC.Member_label_en-US" xlink:label="lab_cswc_CONSERTUSINC.FKAENSTOAINC.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CONSERTUS, INC. (FKA ENSTOA, INC.) [Member]</link:label>
    <link:label id="lab_cswc_CONSERTUSINC.FKAENSTOAINC.Member_documentation_en-US" xlink:label="lab_cswc_CONSERTUSINC.FKAENSTOAINC.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">CONSERTUS, INC. (FKA ENSTOA, INC.)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CONSERTUSINC.FKAENSTOAINC.Member" xlink:href="cswc-20260930.xsd#cswc_CONSERTUSINC.FKAENSTOAINC.Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_CONSERTUSINC.FKAENSTOAINC.Member" xlink:to="lab_cswc_CONSERTUSINC.FKAENSTOAINC.Member" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ROSELANDMANAGEMENTLLCEquityInvestmentsMember_019ff179-4e75-74ef-97ff-f57a27815ac2_terseLabel_en-US" xlink:label="lab_cswc_ROSELANDMANAGEMENTLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ROSELAND MANAGEMENT, LLC</link:label>
    <link:label id="lab_cswc_ROSELANDMANAGEMENTLLCEquityInvestmentsMember_label_en-US" xlink:label="lab_cswc_ROSELANDMANAGEMENTLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ROSELAND MANAGEMENT, LLC, Equity Investments [Member]</link:label>
    <link:label id="lab_cswc_ROSELANDMANAGEMENTLLCEquityInvestmentsMember_documentation_en-US" xlink:label="lab_cswc_ROSELANDMANAGEMENTLLCEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ROSELAND MANAGEMENT, LLC, Equity Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ROSELANDMANAGEMENTLLCEquityInvestmentsMember" xlink:href="cswc-20260930.xsd#cswc_ROSELANDMANAGEMENTLLCEquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ROSELANDMANAGEMENTLLCEquityInvestmentsMember" xlink:to="lab_cswc_ROSELANDMANAGEMENTLLCEquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_TreasuryStockCommonShares_019ff179-4f9d-7551-bf87-4affa946be92_periodStartLabel_en-US" xlink:label="lab_us-gaap_TreasuryStockCommonShares" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance (in shares)</link:label>
    <link:label id="lab_us-gaap_TreasuryStockCommonShares_019ff179-4f9d-7980-b000-3e83a48bd3cd_periodEndLabel_en-US" xlink:label="lab_us-gaap_TreasuryStockCommonShares" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance (in shares)</link:label>
    <link:label id="lab_us-gaap_TreasuryStockCommonShares_label_en-US" xlink:label="lab_us-gaap_TreasuryStockCommonShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Treasury Stock, Common, Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonShares" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TreasuryStockCommonShares" xlink:to="lab_us-gaap_TreasuryStockCommonShares" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_OtherHealthcareServicesMember_01a1449c-ee89-7c29-89cb-f298fcc2e9b6_terseLabel_en-US" xlink:label="lab_cswc_OtherHealthcareServicesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Healthcare Services</link:label>
    <link:label id="lab_cswc_OtherHealthcareServicesMember_label_en-US" xlink:label="lab_cswc_OtherHealthcareServicesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Healthcare Services [Member]</link:label>
    <link:label id="lab_cswc_OtherHealthcareServicesMember_documentation_en-US" xlink:label="lab_cswc_OtherHealthcareServicesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Healthcare Services</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_OtherHealthcareServicesMember" xlink:href="cswc-20260930.xsd#cswc_OtherHealthcareServicesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_OtherHealthcareServicesMember" xlink:to="lab_cswc_OtherHealthcareServicesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StatementEquityComponentsAxis_019ff179-4f1a-7b59-bfc9-be524a1dad97_terseLabel_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity Components [Axis]</link:label>
    <link:label id="lab_us-gaap_StatementEquityComponentsAxis_label_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Components [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementEquityComponentsAxis" xlink:to="lab_us-gaap_StatementEquityComponentsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyScheduleOfUnfundedDebtCommitmentsTableTextBlock_019ff179-4f9d-7914-803e-5e234f9ab131_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyScheduleOfUnfundedDebtCommitmentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Unfunded Debt</link:label>
    <link:label id="lab_cswc_InvestmentCompanyScheduleOfUnfundedDebtCommitmentsTableTextBlock_label_en-US" xlink:label="lab_cswc_InvestmentCompanyScheduleOfUnfundedDebtCommitmentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Schedule Of Unfunded Debt Commitments [Table Text Block]</link:label>
    <link:label id="lab_cswc_InvestmentCompanyScheduleOfUnfundedDebtCommitmentsTableTextBlock_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyScheduleOfUnfundedDebtCommitmentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Schedule Of Unfunded Debt Commitments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyScheduleOfUnfundedDebtCommitmentsTableTextBlock" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyScheduleOfUnfundedDebtCommitmentsTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyScheduleOfUnfundedDebtCommitmentsTableTextBlock" xlink:to="lab_cswc_InvestmentCompanyScheduleOfUnfundedDebtCommitmentsTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentsFairValueDisclosureMeasurementInputAbstract_019ff179-4f1b-78d6-bf5c-49ee8e0a50e5_terseLabel_en-US" xlink:label="lab_cswc_InvestmentsFairValueDisclosureMeasurementInputAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Significant Unobservable Inputs</link:label>
    <link:label id="lab_cswc_InvestmentsFairValueDisclosureMeasurementInputAbstract_label_en-US" xlink:label="lab_cswc_InvestmentsFairValueDisclosureMeasurementInputAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments&#8203; Fair&#8203; Value &#8203;Disclosure, Measurement Input [Abstract]</link:label>
    <link:label id="lab_cswc_InvestmentsFairValueDisclosureMeasurementInputAbstract_documentation_en-US" xlink:label="lab_cswc_InvestmentsFairValueDisclosureMeasurementInputAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investments&#8203; Fair&#8203; Value &#8203;Disclosure, Measurement Input [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentsFairValueDisclosureMeasurementInputAbstract" xlink:href="cswc-20260930.xsd#cswc_InvestmentsFairValueDisclosureMeasurementInputAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentsFairValueDisclosureMeasurementInputAbstract" xlink:to="lab_cswc_InvestmentsFairValueDisclosureMeasurementInputAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_IVUEITLLCMember_019ff179-4e75-7dde-afc4-e1c8e9114e2e_terseLabel_en-US" xlink:label="lab_cswc_IVUEITLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">IVUEIT, LLC</link:label>
    <link:label id="lab_cswc_IVUEITLLCMember_label_en-US" xlink:label="lab_cswc_IVUEITLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">IVUEIT, LLC [Member]</link:label>
    <link:label id="lab_cswc_IVUEITLLCMember_documentation_en-US" xlink:label="lab_cswc_IVUEITLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">IVUEIT, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_IVUEITLLCMember" xlink:href="cswc-20260930.xsd#cswc_IVUEITLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_IVUEITLLCMember" xlink:to="lab_cswc_IVUEITLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityInteractiveDataCurrent_019ff179-4f9d-7cbe-865d-262aa96d4415_terseLabel_en-US" xlink:label="lab_dei_EntityInteractiveDataCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Interactive Data Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityInteractiveDataCurrent" xlink:to="lab_dei_EntityInteractiveDataCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntitySmallBusiness_019ff179-4e75-7be9-ac54-094ff82e7413_terseLabel_en-US" xlink:label="lab_dei_EntitySmallBusiness" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Small Business</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntitySmallBusiness"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntitySmallBusiness" xlink:to="lab_dei_EntitySmallBusiness" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentUnamortizedDiscount_019ff179-4e74-7fe3-94ca-be4d95c6833b_verboseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentUnamortizedDiscount" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Unamortized debt issuance costs</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentUnamortizedDiscount_019ff179-4e74-7112-be1c-35151eb558b4_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentUnamortizedDiscount" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Unamortized Debt Issuance Costs and Debt Discount/Premium</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentUnamortizedDiscount_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentUnamortizedDiscount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Unamortized Discount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscount" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentUnamortizedDiscount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentUnamortizedDiscount" xlink:to="lab_us-gaap_DebtInstrumentUnamortizedDiscount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_019ff179-4e75-7532-b7e3-d4fd0ca18b58_negatedLabel_en-US" xlink:label="lab_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Common stock withheld for payroll taxes upon vesting of restricted stock (in shares)</link:label>
    <link:label id="lab_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_label_en-US" xlink:label="lab_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation" xlink:to="lab_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DesertStar2026LLCMember_01a14489-f727-7fe9-a430-2c9197fd121f_terseLabel_en-US" xlink:label="lab_cswc_DesertStar2026LLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Desert Star</link:label>
    <link:label id="lab_cswc_DesertStar2026LLCMember_label_en-US" xlink:label="lab_cswc_DesertStar2026LLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Desert Star 2026 LLC [Member]</link:label>
    <link:label id="lab_cswc_DesertStar2026LLCMember_documentation_en-US" xlink:label="lab_cswc_DesertStar2026LLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Desert Star 2026 LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DesertStar2026LLCMember" xlink:href="cswc-20260930.xsd#cswc_DesertStar2026LLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DesertStar2026LLCMember" xlink:to="lab_cswc_DesertStar2026LLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestIncomeExpenseNet_01a188d4-aca9-72c0-be21-b563d9b1cd23_terseLabel_en-US" xlink:label="lab_us-gaap_InterestIncomeExpenseNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net gain related to fair value hedge</link:label>
    <link:label id="lab_us-gaap_InterestIncomeExpenseNet_label_en-US" xlink:label="lab_us-gaap_InterestIncomeExpenseNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Income (Expense), Operating</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestIncomeExpenseNet" xlink:to="lab_us-gaap_InterestIncomeExpenseNet" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_MnpiDiscTimedForCompValFlag_terseLabel_en-US" xlink:label="lab_ecd_MnpiDiscTimedForCompValFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">MNPI Disclosure Timed for Compensation Value</link:label>
    <link:label id="lab_ecd_MnpiDiscTimedForCompValFlag_label_en-US" xlink:label="lab_ecd_MnpiDiscTimedForCompValFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">MNPI Disclosure Timed for Compensation Value [Flag]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_MnpiDiscTimedForCompValFlag" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_MnpiDiscTimedForCompValFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_MnpiDiscTimedForCompValFlag" xlink:to="lab_ecd_MnpiDiscTimedForCompValFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentType_019ff179-4f1a-7880-95cb-9aa14d6ea809_terseLabel_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Type</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentType" xlink:to="lab_dei_DocumentType" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentRepurchasedFaceAmount_019ff179-4f9d-7586-be2b-e2d8fb8bff3d_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentRepurchasedFaceAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Repurchased face amount</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentRepurchasedFaceAmount_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRepurchasedFaceAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Repurchased Face Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentRepurchasedFaceAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount" xlink:to="lab_us-gaap_DebtInstrumentRepurchasedFaceAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_019ff179-4f9d-7393-b3bf-66a2000fc475_terseLabel_en-US" xlink:label="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Realized loss on extinguishment of debt</link:label>
    <link:label id="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_019ff179-4f9d-79a4-b4a9-a6fad70923b4_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Realized loss on extinguishment of debt</link:label>
    <link:label id="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_label_en-US" xlink:label="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (Loss) on Extinguishment of Debt</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:to="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetAssetValuePerShare_019ff179-4f9d-72bb-9d73-04a7d82e8730_terseLabel_en-US" xlink:label="lab_us-gaap_NetAssetValuePerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net asset value per share (in usd per share)</link:label>
    <link:label id="lab_us-gaap_NetAssetValuePerShare_019ff179-4f9d-7e0a-b116-7fa5e94cf87d_periodStartLabel_en-US" xlink:label="lab_us-gaap_NetAssetValuePerShare" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning of period (in usd per share)</link:label>
    <link:label id="lab_us-gaap_NetAssetValuePerShare_019ff179-4f9d-7110-b430-64a6c4c5e3e5_periodEndLabel_en-US" xlink:label="lab_us-gaap_NetAssetValuePerShare" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">End of period (in usd per share)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetAssetValuePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetAssetValuePerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetAssetValuePerShare" xlink:to="lab_us-gaap_NetAssetValuePerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PaidInKindInterest_019ff179-4f9d-7b77-83e8-8cd731c257a8_terseLabel_en-US" xlink:label="lab_us-gaap_PaidInKindInterest" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Payment of accrued payment-in-kind interest</link:label>
    <link:label id="lab_us-gaap_PaidInKindInterest_label_en-US" xlink:label="lab_us-gaap_PaidInKindInterest" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Paid-in-Kind Interest</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaidInKindInterest" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaidInKindInterest"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaidInKindInterest" xlink:to="lab_us-gaap_PaidInKindInterest" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SignificantAccountingPoliciesTextBlock_019ff179-4e75-716d-bd19-d72dc1f04bbc_terseLabel_en-US" xlink:label="lab_us-gaap_SignificantAccountingPoliciesTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</link:label>
    <link:label id="lab_us-gaap_SignificantAccountingPoliciesTextBlock_label_en-US" xlink:label="lab_us-gaap_SignificantAccountingPoliciesTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Significant Accounting Policies [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SignificantAccountingPoliciesTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SignificantAccountingPoliciesTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SignificantAccountingPoliciesTextBlock" xlink:to="lab_us-gaap_SignificantAccountingPoliciesTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentInterestRatePaidInKind_019ff179-4f9d-73fa-86f4-2af703c30463_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentInterestRatePaidInKind" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">PIK</link:label>
    <link:label id="lab_us-gaap_InvestmentInterestRatePaidInKind_label_en-US" xlink:label="lab_us-gaap_InvestmentInterestRatePaidInKind" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Interest Rate, Paid in Kind</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentInterestRatePaidInKind" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentInterestRatePaidInKind"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentInterestRatePaidInKind" xlink:to="lab_us-gaap_InvestmentInterestRatePaidInKind" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_NEUROPSYCHIATRICHOSPITALSLLCMember_019ff179-4e74-7c81-9d10-9e7acd0c8d11_terseLabel_en-US" xlink:label="lab_cswc_NEUROPSYCHIATRICHOSPITALSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">NEUROPSYCHIATRIC HOSPITALS, LLC</link:label>
    <link:label id="lab_cswc_NEUROPSYCHIATRICHOSPITALSLLCMember_label_en-US" xlink:label="lab_cswc_NEUROPSYCHIATRICHOSPITALSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">NEUROPSYCHIATRIC HOSPITALS, LLC [Member]</link:label>
    <link:label id="lab_cswc_NEUROPSYCHIATRICHOSPITALSLLCMember_documentation_en-US" xlink:label="lab_cswc_NEUROPSYCHIATRICHOSPITALSLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">NEUROPSYCHIATRIC HOSPITALS, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_NEUROPSYCHIATRICHOSPITALSLLCMember" xlink:href="cswc-20260930.xsd#cswc_NEUROPSYCHIATRICHOSPITALSLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_NEUROPSYCHIATRICHOSPITALSLLCMember" xlink:to="lab_cswc_NEUROPSYCHIATRICHOSPITALSLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_AIAutomationInfrastructureMember_01a14496-71b4-7937-be13-a5c489eefa34_terseLabel_en-US" xlink:label="lab_cswc_AIAutomationInfrastructureMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Artificial Intelligence ("AI") Automation &amp; Infrastructure</link:label>
    <link:label id="lab_cswc_AIAutomationInfrastructureMember_label_en-US" xlink:label="lab_cswc_AIAutomationInfrastructureMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">AI Automation &amp; Infrastructure [Member]</link:label>
    <link:label id="lab_cswc_AIAutomationInfrastructureMember_documentation_en-US" xlink:label="lab_cswc_AIAutomationInfrastructureMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">AI Automation &amp; Infrastructure</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_AIAutomationInfrastructureMember" xlink:href="cswc-20260930.xsd#cswc_AIAutomationInfrastructureMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_AIAutomationInfrastructureMember" xlink:to="lab_cswc_AIAutomationInfrastructureMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StatementOfStockholdersEquityAbstract_label_en-US" xlink:label="lab_us-gaap_StatementOfStockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Stockholders' Equity [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfStockholdersEquityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract" xlink:to="lab_us-gaap_StatementOfStockholdersEquityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_RENEWFITNESSOPERATIONSLLCMember_019ff179-4f9d-786e-bc66-b7e14a0c45a0_terseLabel_en-US" xlink:label="lab_cswc_RENEWFITNESSOPERATIONSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">RENEW FITNESS OPERATIONS, LLC</link:label>
    <link:label id="lab_cswc_RENEWFITNESSOPERATIONSLLCMember_label_en-US" xlink:label="lab_cswc_RENEWFITNESSOPERATIONSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">RENEW FITNESS OPERATIONS, LLC [Member]</link:label>
    <link:label id="lab_cswc_RENEWFITNESSOPERATIONSLLCMember_documentation_en-US" xlink:label="lab_cswc_RENEWFITNESSOPERATIONSLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">RENEW FITNESS OPERATIONS, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_RENEWFITNESSOPERATIONSLLCMember" xlink:href="cswc-20260930.xsd#cswc_RENEWFITNESSOPERATIONSLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_RENEWFITNESSOPERATIONSLLCMember" xlink:to="lab_cswc_RENEWFITNESSOPERATIONSLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_LocalPhoneNumber_019ff179-4f1a-7a9c-88c5-dc97ccb76043_terseLabel_en-US" xlink:label="lab_dei_LocalPhoneNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Local Phone Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LocalPhoneNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LocalPhoneNumber" xlink:to="lab_dei_LocalPhoneNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SoftwareAsAServiceMember_01a1449d-6732-7227-b6f2-b130a838ebac_terseLabel_en-US" xlink:label="lab_cswc_SoftwareAsAServiceMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Software as a Service ("SaaS")</link:label>
    <link:label id="lab_cswc_SoftwareAsAServiceMember_label_en-US" xlink:label="lab_cswc_SoftwareAsAServiceMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Software as a Service [Member]</link:label>
    <link:label id="lab_cswc_SoftwareAsAServiceMember_documentation_en-US" xlink:label="lab_cswc_SoftwareAsAServiceMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Software as a Service</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SoftwareAsAServiceMember" xlink:href="cswc-20260930.xsd#cswc_SoftwareAsAServiceMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SoftwareAsAServiceMember" xlink:to="lab_cswc_SoftwareAsAServiceMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_AirConditioningSpecialistIncMember_019ff179-4f1a-7155-856e-056dc57ef1ed_terseLabel_en-US" xlink:label="lab_cswc_AirConditioningSpecialistIncMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">AIR CONDITIONING SPECIALIST INC.</link:label>
    <link:label id="lab_cswc_AirConditioningSpecialistIncMember_label_en-US" xlink:label="lab_cswc_AirConditioningSpecialistIncMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Air Conditioning Specialist, Inc. [Member]</link:label>
    <link:label id="lab_cswc_AirConditioningSpecialistIncMember_documentation_en-US" xlink:label="lab_cswc_AirConditioningSpecialistIncMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Air Conditioning Specialist, Inc.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_AirConditioningSpecialistIncMember" xlink:href="cswc-20260930.xsd#cswc_AirConditioningSpecialistIncMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_AirConditioningSpecialistIncMember" xlink:to="lab_cswc_AirConditioningSpecialistIncMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DeferredIncomeTaxLiabilities_019ff179-4e74-71aa-a873-21aef48d2773_negatedTotalLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xml:lang="en-US">Total deferred tax liabilities</link:label>
    <link:label id="lab_us-gaap_DeferredIncomeTaxLiabilities_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Liabilities, Gross</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities" xlink:to="lab_us-gaap_DeferredIncomeTaxLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyUnrealizedGainLossOnInvestmentPerShare_019ff179-4f1a-7acb-b43f-255a053cfb1d_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyUnrealizedGainLossOnInvestmentPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net unrealized (depreciation) appreciation on investments, net of tax (in usd per share)</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyUnrealizedGainLossOnInvestmentPerShare_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyUnrealizedGainLossOnInvestmentPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Unrealized Gain (Loss) on Investment, Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyUnrealizedGainLossOnInvestmentPerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyUnrealizedGainLossOnInvestmentPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyUnrealizedGainLossOnInvestmentPerShare" xlink:to="lab_us-gaap_InvestmentCompanyUnrealizedGainLossOnInvestmentPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PledgedStatusDomain_01a16861-245a-73d2-ac6a-841a1d241464_terseLabel_en-US" xlink:label="lab_us-gaap_PledgedStatusDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pledged Status [Domain]</link:label>
    <link:label id="lab_us-gaap_PledgedStatusDomain_label_en-US" xlink:label="lab_us-gaap_PledgedStatusDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pledged Status [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PledgedStatusDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PledgedStatusDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PledgedStatusDomain" xlink:to="lab_us-gaap_PledgedStatusDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinancialStandbyLetterOfCreditMember_019ff179-4f9d-7c64-a8a0-25a1241b1f1f_terseLabel_en-US" xlink:label="lab_us-gaap_FinancialStandbyLetterOfCreditMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Letters of Credit Issued and Outstanding</link:label>
    <link:label id="lab_us-gaap_FinancialStandbyLetterOfCreditMember_label_en-US" xlink:label="lab_us-gaap_FinancialStandbyLetterOfCreditMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Standby Letter of Credit [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialStandbyLetterOfCreditMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialStandbyLetterOfCreditMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancialStandbyLetterOfCreditMember" xlink:to="lab_us-gaap_FinancialStandbyLetterOfCreditMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommitmentsAndContingencies_019ff179-4f9d-723a-b197-bc66cca3d271_terseLabel_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingencies" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commitments and contingencies (Note 12)</link:label>
    <link:label id="lab_us-gaap_CommitmentsAndContingencies_label_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingencies" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments and Contingencies</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingencies" xlink:to="lab_us-gaap_CommitmentsAndContingencies" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_ChangedPeerGroupFnTextBlock_terseLabel_en-US" xlink:label="lab_ecd_ChangedPeerGroupFnTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changed Peer Group, Footnote</link:label>
    <link:label id="lab_ecd_ChangedPeerGroupFnTextBlock_label_en-US" xlink:label="lab_ecd_ChangedPeerGroupFnTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Changed Peer Group, Footnote [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ChangedPeerGroupFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ChangedPeerGroupFnTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_ChangedPeerGroupFnTextBlock" xlink:to="lab_ecd_ChangedPeerGroupFnTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_CorporateCreditFacilityMember_019ff179-4e75-7ebb-81ab-0ffd5bb8ac71_terseLabel_en-US" xlink:label="lab_cswc_CorporateCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Corporate Credit Facility</link:label>
    <link:label id="lab_cswc_CorporateCreditFacilityMember_label_en-US" xlink:label="lab_cswc_CorporateCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Corporate Credit Facility [Member]</link:label>
    <link:label id="lab_cswc_CorporateCreditFacilityMember_documentation_en-US" xlink:label="lab_cswc_CorporateCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Corporate Credit Facility</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CorporateCreditFacilityMember" xlink:href="cswc-20260930.xsd#cswc_CorporateCreditFacilityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_CorporateCreditFacilityMember" xlink:to="lab_cswc_CorporateCreditFacilityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeTaxContingencyTable_019ff179-4f9d-7532-a600-9d1c3239abca_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxContingencyTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Tax Contingency [Table]</link:label>
    <link:label id="lab_us-gaap_IncomeTaxContingencyTable_label_en-US" xlink:label="lab_us-gaap_IncomeTaxContingencyTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Contingency [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxContingencyTable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxContingencyTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxContingencyTable" xlink:to="lab_us-gaap_IncomeTaxContingencyTable" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyNetInvestmentIncomeBeforeTaxesPerBasicShare_019ff179-4f1b-7ec0-9cc6-b2e294f5585d_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyNetInvestmentIncomeBeforeTaxesPerBasicShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pre-tax net investment income per share - basic (in usd per share)</link:label>
    <link:label id="lab_cswc_InvestmentCompanyNetInvestmentIncomeBeforeTaxesPerBasicShare_label_en-US" xlink:label="lab_cswc_InvestmentCompanyNetInvestmentIncomeBeforeTaxesPerBasicShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Net Investment Income Before Taxes, Per Basic Share</link:label>
    <link:label id="lab_cswc_InvestmentCompanyNetInvestmentIncomeBeforeTaxesPerBasicShare_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyNetInvestmentIncomeBeforeTaxesPerBasicShare" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Net Investment Income Before Taxes, Per Basic Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyNetInvestmentIncomeBeforeTaxesPerBasicShare" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyNetInvestmentIncomeBeforeTaxesPerBasicShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyNetInvestmentIncomeBeforeTaxesPerBasicShare" xlink:to="lab_cswc_InvestmentCompanyNetInvestmentIncomeBeforeTaxesPerBasicShare" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyDividendDistribution_019ff179-4f1a-783c-a446-38f708cfc725_negatedLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyDividendDistribution" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Dividends to shareholders</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyDividendDistribution_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyDividendDistribution" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Dividend Distribution</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyDividendDistribution" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyDividendDistribution"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyDividendDistribution" xlink:to="lab_us-gaap_InvestmentCompanyDividendDistribution" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_ExecutiveCategoryAxis_terseLabel_en-US" xlink:label="lab_ecd_ExecutiveCategoryAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Executive Category:</link:label>
    <link:label id="lab_ecd_ExecutiveCategoryAxis_label_en-US" xlink:label="lab_ecd_ExecutiveCategoryAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Executive Category [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ExecutiveCategoryAxis" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ExecutiveCategoryAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_ExecutiveCategoryAxis" xlink:to="lab_ecd_ExecutiveCategoryAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_CounterpartyNameAxis_019ff179-4e75-7c5e-b856-7bd1db368ebe_terseLabel_en-US" xlink:label="lab_srt_CounterpartyNameAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Counterparty Name [Axis]</link:label>
    <link:label id="lab_srt_CounterpartyNameAxis_label_en-US" xlink:label="lab_srt_CounterpartyNameAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Counterparty Name [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_CounterpartyNameAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_CounterpartyNameAxis" xlink:to="lab_srt_CounterpartyNameAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinancialSupportCapitalContributionsMember_019ff179-4e75-7017-8711-507929fa9a19_terseLabel_en-US" xlink:label="lab_us-gaap_FinancialSupportCapitalContributionsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unfunded Equity Commitments</link:label>
    <link:label id="lab_us-gaap_FinancialSupportCapitalContributionsMember_label_en-US" xlink:label="lab_us-gaap_FinancialSupportCapitalContributionsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Support, Capital Contributions [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialSupportCapitalContributionsMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialSupportCapitalContributionsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancialSupportCapitalContributionsMember" xlink:to="lab_us-gaap_FinancialSupportCapitalContributionsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherCommitmentsTable_019ff179-4e75-7179-abf9-406bf32e0234_terseLabel_en-US" xlink:label="lab_us-gaap_OtherCommitmentsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Commitments [Table]</link:label>
    <link:label id="lab_us-gaap_OtherCommitmentsTable_label_en-US" xlink:label="lab_us-gaap_OtherCommitmentsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Commitments [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsTable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCommitmentsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherCommitmentsTable" xlink:to="lab_us-gaap_OtherCommitmentsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_NonPeoNeoAvgCompActuallyPaidAmt_terseLabel_en-US" xlink:label="lab_ecd_NonPeoNeoAvgCompActuallyPaidAmt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-PEO NEO Average Compensation Actually Paid Amount</link:label>
    <link:label id="lab_ecd_NonPeoNeoAvgCompActuallyPaidAmt_label_en-US" xlink:label="lab_ecd_NonPeoNeoAvgCompActuallyPaidAmt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-PEO NEO Average Compensation Actually Paid Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonPeoNeoAvgCompActuallyPaidAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_NonPeoNeoAvgCompActuallyPaidAmt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_NonPeoNeoAvgCompActuallyPaidAmt" xlink:to="lab_ecd_NonPeoNeoAvgCompActuallyPaidAmt" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_O2027M7TaxYearDividendsMember_019ff179-4f9d-7dae-ae5d-522b8f494a6b_terseLabel_en-US" xlink:label="lab_cswc_O2027M7TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">O 2027 M7 Tax Year Dividends</link:label>
    <link:label id="lab_cswc_O2027M7TaxYearDividendsMember_label_en-US" xlink:label="lab_cswc_O2027M7TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">O 2027 M7 Tax Year Dividends [Member]</link:label>
    <link:label id="lab_cswc_O2027M7TaxYearDividendsMember_documentation_en-US" xlink:label="lab_cswc_O2027M7TaxYearDividendsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">O 2027 M7 Tax Year Dividends</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_O2027M7TaxYearDividendsMember" xlink:href="cswc-20260930.xsd#cswc_O2027M7TaxYearDividendsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_O2027M7TaxYearDividendsMember" xlink:to="lab_cswc_O2027M7TaxYearDividendsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_CapTrinPartnersLLCMember_019ff179-4f9d-76ba-9ae2-d9e4cb3fd537_terseLabel_en-US" xlink:label="lab_cswc_CapTrinPartnersLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CapTrin</link:label>
    <link:label id="lab_cswc_CapTrinPartnersLLCMember_label_en-US" xlink:label="lab_cswc_CapTrinPartnersLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CapTrin Partners, LLC [Member]</link:label>
    <link:label id="lab_cswc_CapTrinPartnersLLCMember_documentation_en-US" xlink:label="lab_cswc_CapTrinPartnersLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">CapTrin Partners, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CapTrinPartnersLLCMember" xlink:href="cswc-20260930.xsd#cswc_CapTrinPartnersLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_CapTrinPartnersLLCMember" xlink:to="lab_cswc_CapTrinPartnersLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_PeoName_terseLabel_en-US" xlink:label="lab_ecd_PeoName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">PEO Name</link:label>
    <link:label id="lab_ecd_PeoName_label_en-US" xlink:label="lab_ecd_PeoName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">PEO Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeoName" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PeoName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_PeoName" xlink:to="lab_ecd_PeoName" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyTaxBasisReconciliationNetOperatingIncomeSubsidiaryIncreaseDecreaseInTaxableIncome_019ff179-4e74-7924-a331-112e64c37d6f_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyTaxBasisReconciliationNetOperatingIncomeSubsidiaryIncreaseDecreaseInTaxableIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net operating income - wholly-owned subsidiary</link:label>
    <link:label id="lab_cswc_InvestmentCompanyTaxBasisReconciliationNetOperatingIncomeSubsidiaryIncreaseDecreaseInTaxableIncome_label_en-US" xlink:label="lab_cswc_InvestmentCompanyTaxBasisReconciliationNetOperatingIncomeSubsidiaryIncreaseDecreaseInTaxableIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Tax Basis Reconciliation, Net Operating Income, Subsidiary, Increase (Decrease) In Taxable Income</link:label>
    <link:label id="lab_cswc_InvestmentCompanyTaxBasisReconciliationNetOperatingIncomeSubsidiaryIncreaseDecreaseInTaxableIncome_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyTaxBasisReconciliationNetOperatingIncomeSubsidiaryIncreaseDecreaseInTaxableIncome" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Tax Basis Reconciliation, Net Operating Income, Subsidiary, Increase (Decrease) In Taxable Income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyTaxBasisReconciliationNetOperatingIncomeSubsidiaryIncreaseDecreaseInTaxableIncome" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyTaxBasisReconciliationNetOperatingIncomeSubsidiaryIncreaseDecreaseInTaxableIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyTaxBasisReconciliationNetOperatingIncomeSubsidiaryIncreaseDecreaseInTaxableIncome" xlink:to="lab_cswc_InvestmentCompanyTaxBasisReconciliationNetOperatingIncomeSubsidiaryIncreaseDecreaseInTaxableIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeTaxesPaid_019ff179-4f1a-74cf-9bd8-67d573eb24f7_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxesPaid" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash paid for income taxes</link:label>
    <link:label id="lab_us-gaap_IncomeTaxesPaid_label_en-US" xlink:label="lab_us-gaap_IncomeTaxesPaid" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Paid, before Refund Received</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaid" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxesPaid"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxesPaid" xlink:to="lab_us-gaap_IncomeTaxesPaid" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019ff179-4f9d-7e43-8206-de96953f2735_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-Lived Asset, Class [Axis]</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-Lived Asset, Class [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_StkPrcOrTsrEstimationMethodTextBlock_terseLabel_en-US" xlink:label="lab_ecd_StkPrcOrTsrEstimationMethodTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock Price or TSR Estimation Method</link:label>
    <link:label id="lab_ecd_StkPrcOrTsrEstimationMethodTextBlock_label_en-US" xlink:label="lab_ecd_StkPrcOrTsrEstimationMethodTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Price or TSR Estimation Method [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_StkPrcOrTsrEstimationMethodTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_StkPrcOrTsrEstimationMethodTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_StkPrcOrTsrEstimationMethodTextBlock" xlink:to="lab_ecd_StkPrcOrTsrEstimationMethodTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityTaxIdentificationNumber_019ff179-4f9d-75ea-b47c-8265dc9379f2_terseLabel_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Tax Identification Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityTaxIdentificationNumber" xlink:to="lab_dei_EntityTaxIdentificationNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_01a10bf5-5e1f-74e6-a74f-21a73e8c4db3_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative Instruments and Hedging Activities Disclosures [Table]</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable"/>
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    <link:label id="lab_cswc_LIVEWELLPARTNERSHOLDINGSINC.Member_01a13e34-7544-7186-9e9f-4e7463e03194_terseLabel_en-US" xlink:label="lab_cswc_LIVEWELLPARTNERSHOLDINGSINC.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">LIVEWELL PARTNERS HOLDINGS INC.</link:label>
    <link:label id="lab_cswc_LIVEWELLPARTNERSHOLDINGSINC.Member_label_en-US" xlink:label="lab_cswc_LIVEWELLPARTNERSHOLDINGSINC.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">LIVEWELL PARTNERS HOLDINGS INC. [Member]</link:label>
    <link:label id="lab_cswc_LIVEWELLPARTNERSHOLDINGSINC.Member_documentation_en-US" xlink:label="lab_cswc_LIVEWELLPARTNERSHOLDINGSINC.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">LIVEWELL PARTNERS HOLDINGS INC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_LIVEWELLPARTNERSHOLDINGSINC.Member" xlink:href="cswc-20260930.xsd#cswc_LIVEWELLPARTNERSHOLDINGSINC.Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_LIVEWELLPARTNERSHOLDINGSINC.Member" xlink:to="lab_cswc_LIVEWELLPARTNERSHOLDINGSINC.Member" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_OUTERBOXLLCEquityInterestMember_019ff179-4e75-7be6-b6cf-d0cdeb358141_terseLabel_en-US" xlink:label="lab_cswc_OUTERBOXLLCEquityInterestMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">OUTERBOX, LLC</link:label>
    <link:label id="lab_cswc_OUTERBOXLLCEquityInterestMember_label_en-US" xlink:label="lab_cswc_OUTERBOXLLCEquityInterestMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">OUTERBOX, LLC Equity Interest [Member]</link:label>
    <link:label id="lab_cswc_OUTERBOXLLCEquityInterestMember_documentation_en-US" xlink:label="lab_cswc_OUTERBOXLLCEquityInterestMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">OUTERBOX, LLC Equity Interest</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_OUTERBOXLLCEquityInterestMember" xlink:href="cswc-20260930.xsd#cswc_OUTERBOXLLCEquityInterestMember"/>
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    <link:label id="lab_us-gaap_OtherCommitmentsLineItems_label_en-US" xlink:label="lab_us-gaap_OtherCommitmentsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Commitments [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCommitmentsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherCommitmentsLineItems" xlink:to="lab_us-gaap_OtherCommitmentsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SUNLINEGROUPLLCMember_019ff179-4f9d-7e57-9d33-db27e63be244_terseLabel_en-US" xlink:label="lab_cswc_SUNLINEGROUPLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SUNLINE GROUP LLC</link:label>
    <link:label id="lab_cswc_SUNLINEGROUPLLCMember_label_en-US" xlink:label="lab_cswc_SUNLINEGROUPLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">SUNLINE GROUP LLC [Member]</link:label>
    <link:label id="lab_cswc_SUNLINEGROUPLLCMember_documentation_en-US" xlink:label="lab_cswc_SUNLINEGROUPLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">SUNLINE GROUP LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SUNLINEGROUPLLCMember" xlink:href="cswc-20260930.xsd#cswc_SUNLINEGROUPLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SUNLINEGROUPLLCMember" xlink:to="lab_cswc_SUNLINEGROUPLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_CRAFTYAPESLLCMember_019ff179-4f1a-7598-9ddd-8d437901f00b_terseLabel_en-US" xlink:label="lab_cswc_CRAFTYAPESLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CRAFTY APES, LLC</link:label>
    <link:label id="lab_cswc_CRAFTYAPESLLCMember_label_en-US" xlink:label="lab_cswc_CRAFTYAPESLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CRAFTY APES, LLC [Member]</link:label>
    <link:label id="lab_cswc_CRAFTYAPESLLCMember_documentation_en-US" xlink:label="lab_cswc_CRAFTYAPESLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">CRAFTY APES, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CRAFTYAPESLLCMember" xlink:href="cswc-20260930.xsd#cswc_CRAFTYAPESLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_CRAFTYAPESLLCMember" xlink:to="lab_cswc_CRAFTYAPESLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_A360QUOTETOPCOLLCMember_019ff179-4f1a-7071-8625-444ed001c110_terseLabel_en-US" xlink:label="lab_cswc_A360QUOTETOPCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">360 QUOTE TOPCO, LLC</link:label>
    <link:label id="lab_cswc_A360QUOTETOPCOLLCMember_label_en-US" xlink:label="lab_cswc_A360QUOTETOPCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">360 QUOTE TOPCO, LLC [Member]</link:label>
    <link:label id="lab_cswc_A360QUOTETOPCOLLCMember_documentation_en-US" xlink:label="lab_cswc_A360QUOTETOPCOLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">360 QUOTE TOPCO, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_A360QUOTETOPCOLLCMember" xlink:href="cswc-20260930.xsd#cswc_A360QUOTETOPCOLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_A360QUOTETOPCOLLCMember" xlink:to="lab_cswc_A360QUOTETOPCOLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ExpirationTrancheThreeMember_019ff179-4f1a-7bbe-916c-fa4ac1945983_terseLabel_en-US" xlink:label="lab_cswc_ExpirationTrancheThreeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">April 2027</link:label>
    <link:label id="lab_cswc_ExpirationTrancheThreeMember_label_en-US" xlink:label="lab_cswc_ExpirationTrancheThreeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expiration Tranche Three [Member]</link:label>
    <link:label id="lab_cswc_ExpirationTrancheThreeMember_documentation_en-US" xlink:label="lab_cswc_ExpirationTrancheThreeMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Expiration Tranche Three</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ExpirationTrancheThreeMember" xlink:href="cswc-20260930.xsd#cswc_ExpirationTrancheThreeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ExpirationTrancheThreeMember" xlink:to="lab_cswc_ExpirationTrancheThreeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_019ff179-4f1a-7b69-97df-68ab7c1fc419_terseLabel_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityIncorporationStateCountryCode" xlink:to="lab_dei_EntityIncorporationStateCountryCode" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyPercentOfQualifiedAssets_019ff179-4e75-7639-b69f-955b4f6b3086_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyPercentOfQualifiedAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Qualifying assets</link:label>
    <link:label id="lab_cswc_InvestmentCompanyPercentOfQualifiedAssets_label_en-US" xlink:label="lab_cswc_InvestmentCompanyPercentOfQualifiedAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Percent Of Qualified Assets</link:label>
    <link:label id="lab_cswc_InvestmentCompanyPercentOfQualifiedAssets_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyPercentOfQualifiedAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Percent Of Qualified Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyPercentOfQualifiedAssets" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyPercentOfQualifiedAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyPercentOfQualifiedAssets" xlink:to="lab_cswc_InvestmentCompanyPercentOfQualifiedAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_AggtErrCompNotYetDeterminedTextBlock_terseLabel_en-US" xlink:label="lab_ecd_AggtErrCompNotYetDeterminedTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Aggregate Erroneous Compensation Not Yet Determined</link:label>
    <link:label id="lab_ecd_AggtErrCompNotYetDeterminedTextBlock_label_en-US" xlink:label="lab_ecd_AggtErrCompNotYetDeterminedTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aggregate Erroneous Compensation Not Yet Determined [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AggtErrCompNotYetDeterminedTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AggtErrCompNotYetDeterminedTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_AggtErrCompNotYetDeterminedTextBlock" xlink:to="lab_ecd_AggtErrCompNotYetDeterminedTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_MtrlTermsOfTrdArrTextBlock_terseLabel_en-US" xlink:label="lab_ecd_MtrlTermsOfTrdArrTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Material Terms of Trading Arrangement</link:label>
    <link:label id="lab_ecd_MtrlTermsOfTrdArrTextBlock_label_en-US" xlink:label="lab_ecd_MtrlTermsOfTrdArrTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Material Terms of Trading Arrangement [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_MtrlTermsOfTrdArrTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_MtrlTermsOfTrdArrTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_MtrlTermsOfTrdArrTextBlock" xlink:to="lab_ecd_MtrlTermsOfTrdArrTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember_terseLabel_en-US" xlink:label="lab_ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year</link:label>
    <link:label id="lab_ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember_label_en-US" xlink:label="lab_ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember" xlink:to="lab_ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_019ff179-4f9d-7e64-851e-6672229fefe3_terseLabel_en-US" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ORGANIZATION AND BASIS OF PRESENTATION</link:label>
    <link:label id="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:to="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentAxis_019ff179-4f1a-7c92-ba21-1bf24eb9e1d9_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentAxis" xlink:to="lab_us-gaap_DebtInstrumentAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SOCIALSEOLLCMember_019ff179-4f9d-7ef4-8956-9f23d00b2e61_terseLabel_en-US" xlink:label="lab_cswc_SOCIALSEOLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SOCIALSEO, LLC</link:label>
    <link:label id="lab_cswc_SOCIALSEOLLCMember_label_en-US" xlink:label="lab_cswc_SOCIALSEOLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">SOCIALSEO, LLC [Member]</link:label>
    <link:label id="lab_cswc_SOCIALSEOLLCMember_documentation_en-US" xlink:label="lab_cswc_SOCIALSEOLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">SOCIALSEO, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SOCIALSEOLLCMember" xlink:href="cswc-20260930.xsd#cswc_SOCIALSEOLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SOCIALSEOLLCMember" xlink:to="lab_cswc_SOCIALSEOLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensation_019ff179-4f1a-7a25-8d9a-a3ae39c9b06d_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based compensation expense</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensation_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Payment Arrangement, Noncash Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensation" xlink:to="lab_us-gaap_ShareBasedCompensation" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueJune2036PoolMember_019ff179-4f9d-75cf-8c55-c473ab4d1e45_terseLabel_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueJune2036PoolMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debentures due June 2036</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueJune2036PoolMember_label_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueJune2036PoolMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures Due, June 2036 Pool [Member]</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueJune2036PoolMember_documentation_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueJune2036PoolMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures Due, June 2036 Pool</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SmallBusinessAdministrationDebenturesDueJune2036PoolMember" xlink:href="cswc-20260930.xsd#cswc_SmallBusinessAdministrationDebenturesDueJune2036PoolMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SmallBusinessAdministrationDebenturesDueJune2036PoolMember" xlink:to="lab_cswc_SmallBusinessAdministrationDebenturesDueJune2036PoolMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_IndustryConcentrationRiskMember_019ff179-4f1a-70ed-9089-473cb77fad06_terseLabel_en-US" xlink:label="lab_cswc_IndustryConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Industry</link:label>
    <link:label id="lab_cswc_IndustryConcentrationRiskMember_label_en-US" xlink:label="lab_cswc_IndustryConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Industry Concentration Risk [Member]</link:label>
    <link:label id="lab_cswc_IndustryConcentrationRiskMember_documentation_en-US" xlink:label="lab_cswc_IndustryConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Industry Concentration Risk</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_IndustryConcentrationRiskMember" xlink:href="cswc-20260930.xsd#cswc_IndustryConcentrationRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_IndustryConcentrationRiskMember" xlink:to="lab_cswc_IndustryConcentrationRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_UnrealizedInvestmentGainsLossesAbstract_019ff179-4f1a-7505-8474-752ae5ef97e1_terseLabel_en-US" xlink:label="lab_cswc_UnrealizedInvestmentGainsLossesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net unrealized (depreciation) appreciation on investments</link:label>
    <link:label id="lab_cswc_UnrealizedInvestmentGainsLossesAbstract_label_en-US" xlink:label="lab_cswc_UnrealizedInvestmentGainsLossesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unrealized Investment Gains Losses [Abstract]</link:label>
    <link:label id="lab_cswc_UnrealizedInvestmentGainsLossesAbstract_documentation_en-US" xlink:label="lab_cswc_UnrealizedInvestmentGainsLossesAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Unrealized Investment Gains Losses</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_UnrealizedInvestmentGainsLossesAbstract" xlink:href="cswc-20260930.xsd#cswc_UnrealizedInvestmentGainsLossesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_UnrealizedInvestmentGainsLossesAbstract" xlink:to="lab_cswc_UnrealizedInvestmentGainsLossesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_PIPELINETECHNIQUELTDMember_019ff179-4f9d-7f71-bc89-58de93959ff8_terseLabel_en-US" xlink:label="lab_cswc_PIPELINETECHNIQUELTDMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">PIPELINE TECHNIQUE LTD.</link:label>
    <link:label id="lab_cswc_PIPELINETECHNIQUELTDMember_label_en-US" xlink:label="lab_cswc_PIPELINETECHNIQUELTDMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">PIPELINE TECHNIQUE LTD. [Member]</link:label>
    <link:label id="lab_cswc_PIPELINETECHNIQUELTDMember_documentation_en-US" xlink:label="lab_cswc_PIPELINETECHNIQUELTDMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">PIPELINE TECHNIQUE LTD.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_PIPELINETECHNIQUELTDMember" xlink:href="cswc-20260930.xsd#cswc_PIPELINETECHNIQUELTDMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_PIPELINETECHNIQUELTDMember" xlink:to="lab_cswc_PIPELINETECHNIQUELTDMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_FeeIncomeAbstract_019ff179-4f9d-7a37-9644-8003832dad1d_terseLabel_en-US" xlink:label="lab_cswc_FeeIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fee income:</link:label>
    <link:label id="lab_cswc_FeeIncomeAbstract_label_en-US" xlink:label="lab_cswc_FeeIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fee Income [Abstract]</link:label>
    <link:label id="lab_cswc_FeeIncomeAbstract_documentation_en-US" xlink:label="lab_cswc_FeeIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fee Income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_FeeIncomeAbstract" xlink:href="cswc-20260930.xsd#cswc_FeeIncomeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_FeeIncomeAbstract" xlink:to="lab_cswc_FeeIncomeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_LGMPHARMALLCMember_019ff179-4f9d-7c35-9055-39e385c7b165_terseLabel_en-US" xlink:label="lab_cswc_LGMPHARMALLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">LGM PHARMA, LLC</link:label>
    <link:label id="lab_cswc_LGMPHARMALLCMember_label_en-US" xlink:label="lab_cswc_LGMPHARMALLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">LGM PHARMA, LLC [Member]</link:label>
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    <link:label id="lab_cswc_ValuationEnterpriseValueWaterfallApproachMember_019ff179-4f1a-74f5-b1d2-20e3270bb782_terseLabel_en-US" xlink:label="lab_cswc_ValuationEnterpriseValueWaterfallApproachMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Enterprise Value Waterfall Approach</link:label>
    <link:label id="lab_cswc_ValuationEnterpriseValueWaterfallApproachMember_label_en-US" xlink:label="lab_cswc_ValuationEnterpriseValueWaterfallApproachMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Valuation, Enterprise Value Waterfall Approach [Member]</link:label>
    <link:label id="lab_cswc_ValuationEnterpriseValueWaterfallApproachMember_documentation_en-US" xlink:label="lab_cswc_ValuationEnterpriseValueWaterfallApproachMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Valuation, Enterprise Value Waterfall Approach</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ValuationEnterpriseValueWaterfallApproachMember" xlink:href="cswc-20260930.xsd#cswc_ValuationEnterpriseValueWaterfallApproachMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ValuationEnterpriseValueWaterfallApproachMember" xlink:to="lab_cswc_ValuationEnterpriseValueWaterfallApproachMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_CLEARWATERGROUPLLCMember_019ff179-4f9d-7dad-8570-c6af55974ebf_terseLabel_en-US" xlink:label="lab_cswc_CLEARWATERGROUPLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CLEARWATER GROUP, LLC</link:label>
    <link:label id="lab_cswc_CLEARWATERGROUPLLCMember_label_en-US" xlink:label="lab_cswc_CLEARWATERGROUPLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CLEARWATER GROUP, LLC [Member]</link:label>
    <link:label id="lab_cswc_CLEARWATERGROUPLLCMember_documentation_en-US" xlink:label="lab_cswc_CLEARWATERGROUPLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">CLEARWATER GROUP, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CLEARWATERGROUPLLCMember" xlink:href="cswc-20260930.xsd#cswc_CLEARWATERGROUPLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_CLEARWATERGROUPLLCMember" xlink:to="lab_cswc_CLEARWATERGROUPLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_O2027Q1DividendsMember_019ff179-4f1a-75cf-8f57-a5268f12f2c4_terseLabel_en-US" xlink:label="lab_cswc_O2027Q1DividendsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">O 2027 Q1 Dividends</link:label>
    <link:label id="lab_cswc_O2027Q1DividendsMember_label_en-US" xlink:label="lab_cswc_O2027Q1DividendsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">O 2027 Q1 Dividends [Member]</link:label>
    <link:label id="lab_cswc_O2027Q1DividendsMember_documentation_en-US" xlink:label="lab_cswc_O2027Q1DividendsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">O 2027 Q1 Dividends</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_O2027Q1DividendsMember" xlink:href="cswc-20260930.xsd#cswc_O2027Q1DividendsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_O2027Q1DividendsMember" xlink:to="lab_cswc_O2027Q1DividendsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019ff179-4f1b-78e1-924d-dab4f5b00f98_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]</link:label>
    <link:label id="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_label_en-US" xlink:label="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems" xlink:to="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquitySecuritiesIndustryMember_019ff179-4f1a-7520-9229-88d0183f2acf_terseLabel_en-US" xlink:label="lab_us-gaap_EquitySecuritiesIndustryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Industry Sector [Domain]</link:label>
    <link:label id="lab_us-gaap_EquitySecuritiesIndustryMember_label_en-US" xlink:label="lab_us-gaap_EquitySecuritiesIndustryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Industry Sector [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesIndustryMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquitySecuritiesIndustryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember" xlink:to="lab_us-gaap_EquitySecuritiesIndustryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_019ff179-4f1a-7897-878b-417bbf56854b_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Decrease in other liabilities</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Other Operating Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NontradeReceivablesUnclassifiedAbstract_019ff179-4e75-78ab-be0f-0ca1dc160de5_terseLabel_en-US" xlink:label="lab_us-gaap_NontradeReceivablesUnclassifiedAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Receivables:</link:label>
    <link:label id="lab_us-gaap_NontradeReceivablesUnclassifiedAbstract_label_en-US" xlink:label="lab_us-gaap_NontradeReceivablesUnclassifiedAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Nontrade Receivables, Unclassified [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NontradeReceivablesUnclassifiedAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NontradeReceivablesUnclassifiedAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NontradeReceivablesUnclassifiedAbstract" xlink:to="lab_us-gaap_NontradeReceivablesUnclassifiedAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PlanNameAxis_019ff179-4f1a-78f3-8cc6-1e4deb60eb49_terseLabel_en-US" xlink:label="lab_us-gaap_PlanNameAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Plan Name [Axis]</link:label>
    <link:label id="lab_us-gaap_PlanNameAxis_label_en-US" xlink:label="lab_us-gaap_PlanNameAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan Name [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PlanNameAxis" xlink:to="lab_us-gaap_PlanNameAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentOwnedPercentOfNetAssets_019ff179-4e75-7ef4-8bda-e051819954fa_verboseLabel_en-US" xlink:label="lab_us-gaap_InvestmentOwnedPercentOfNetAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">% of Net Assets</link:label>
    <link:label id="lab_us-gaap_InvestmentOwnedPercentOfNetAssets_019ff179-4e75-78b0-ac87-99dd6d20c815_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentOwnedPercentOfNetAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of Net Assets at Fair Value</link:label>
    <link:label id="lab_us-gaap_InvestmentOwnedPercentOfNetAssets_label_en-US" xlink:label="lab_us-gaap_InvestmentOwnedPercentOfNetAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Owned, Net Assets, Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedPercentOfNetAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedPercentOfNetAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentOwnedPercentOfNetAssets" xlink:to="lab_us-gaap_InvestmentOwnedPercentOfNetAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_FinancialCommitmentYearSixMember_019ff179-4f1a-71d2-a9b5-13ff730a35bf_terseLabel_en-US" xlink:label="lab_cswc_FinancialCommitmentYearSixMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2033</link:label>
    <link:label id="lab_cswc_FinancialCommitmentYearSixMember_label_en-US" xlink:label="lab_cswc_FinancialCommitmentYearSixMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Commitment Year Six [Member]</link:label>
    <link:label id="lab_cswc_FinancialCommitmentYearSixMember_documentation_en-US" xlink:label="lab_cswc_FinancialCommitmentYearSixMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial Commitment Year Six</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_FinancialCommitmentYearSixMember" xlink:href="cswc-20260930.xsd#cswc_FinancialCommitmentYearSixMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_FinancialCommitmentYearSixMember" xlink:to="lab_cswc_FinancialCommitmentYearSixMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SupplyChainTechnologyMember_01a1449d-dfab-7f6e-8e89-151ba69c8ce9_terseLabel_en-US" xlink:label="lab_cswc_SupplyChainTechnologyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Supply Chain Technology</link:label>
    <link:label id="lab_cswc_SupplyChainTechnologyMember_label_en-US" xlink:label="lab_cswc_SupplyChainTechnologyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Supply Chain Technology [Member]</link:label>
    <link:label id="lab_cswc_SupplyChainTechnologyMember_documentation_en-US" xlink:label="lab_cswc_SupplyChainTechnologyMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Supply Chain Technology</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SupplyChainTechnologyMember" xlink:href="cswc-20260930.xsd#cswc_SupplyChainTechnologyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SupplyChainTechnologyMember" xlink:to="lab_cswc_SupplyChainTechnologyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_FOODPHARMASUBSIDIARYHOLDINGSLLCMember_019ff179-4f1a-7f36-996d-1329819aaf18_terseLabel_en-US" xlink:label="lab_cswc_FOODPHARMASUBSIDIARYHOLDINGSLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">FOOD PHARMA SUBSIDIARY HOLDINGS, LLC</link:label>
    <link:label id="lab_cswc_FOODPHARMASUBSIDIARYHOLDINGSLLCMember_label_en-US" xlink:label="lab_cswc_FOODPHARMASUBSIDIARYHOLDINGSLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">FOOD PHARMA SUBSIDIARY HOLDINGS, LLC [Member]</link:label>
    <link:label id="lab_cswc_FOODPHARMASUBSIDIARYHOLDINGSLLCMember_documentation_en-US" xlink:label="lab_cswc_FOODPHARMASUBSIDIARYHOLDINGSLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">FOOD PHARMA SUBSIDIARY HOLDINGS, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_FOODPHARMASUBSIDIARYHOLDINGSLLCMember" xlink:href="cswc-20260930.xsd#cswc_FOODPHARMASUBSIDIARYHOLDINGSLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_FOODPHARMASUBSIDIARYHOLDINGSLLCMember" xlink:to="lab_cswc_FOODPHARMASUBSIDIARYHOLDINGSLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DebtInstrumentRegulatoryMaximumBorrowingCapacity_019ff179-4e74-78e3-b547-1e783bb6aed9_terseLabel_en-US" xlink:label="lab_cswc_DebtInstrumentRegulatoryMaximumBorrowingCapacity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Regulatory maximum borrowing capacity</link:label>
    <link:label id="lab_cswc_DebtInstrumentRegulatoryMaximumBorrowingCapacity_label_en-US" xlink:label="lab_cswc_DebtInstrumentRegulatoryMaximumBorrowingCapacity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Regulatory Maximum Borrowing Capacity</link:label>
    <link:label id="lab_cswc_DebtInstrumentRegulatoryMaximumBorrowingCapacity_documentation_en-US" xlink:label="lab_cswc_DebtInstrumentRegulatoryMaximumBorrowingCapacity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instrument, Regulatory Maximum Borrowing Capacity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DebtInstrumentRegulatoryMaximumBorrowingCapacity" xlink:href="cswc-20260930.xsd#cswc_DebtInstrumentRegulatoryMaximumBorrowingCapacity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DebtInstrumentRegulatoryMaximumBorrowingCapacity" xlink:to="lab_cswc_DebtInstrumentRegulatoryMaximumBorrowingCapacity" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_019ff179-4f9d-77fc-8474-7c91508421f0_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Forfeited (in shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanySeniorSecurityIndebtednessAssetCoverageRatioMinimumThreshold_019ff179-4e74-7ac6-83cb-2a280750b712_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanySeniorSecurityIndebtednessAssetCoverageRatioMinimumThreshold" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Asset coverage ratio</link:label>
    <link:label id="lab_cswc_InvestmentCompanySeniorSecurityIndebtednessAssetCoverageRatioMinimumThreshold_label_en-US" xlink:label="lab_cswc_InvestmentCompanySeniorSecurityIndebtednessAssetCoverageRatioMinimumThreshold" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Senior Security, Indebtedness, Asset Coverage Ratio, Minimum Threshold</link:label>
    <link:label id="lab_cswc_InvestmentCompanySeniorSecurityIndebtednessAssetCoverageRatioMinimumThreshold_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanySeniorSecurityIndebtednessAssetCoverageRatioMinimumThreshold" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Senior Security, Indebtedness, Asset Coverage Ratio, Minimum Threshold</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanySeniorSecurityIndebtednessAssetCoverageRatioMinimumThreshold" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanySeniorSecurityIndebtednessAssetCoverageRatioMinimumThreshold"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanySeniorSecurityIndebtednessAssetCoverageRatioMinimumThreshold" xlink:to="lab_cswc_InvestmentCompanySeniorSecurityIndebtednessAssetCoverageRatioMinimumThreshold" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GeneralAndAdministrativeExpense_019ff179-4f9d-7f0b-8212-44ab542800ac_terseLabel_en-US" xlink:label="lab_us-gaap_GeneralAndAdministrativeExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">General and administrative</link:label>
    <link:label id="lab_us-gaap_GeneralAndAdministrativeExpense_label_en-US" xlink:label="lab_us-gaap_GeneralAndAdministrativeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">General and Administrative Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GeneralAndAdministrativeExpense" xlink:to="lab_us-gaap_GeneralAndAdministrativeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentCompanyDistributionToShareholdersPerShare_019ff179-4e75-7640-a722-69b48b1b5111_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_InvestmentCompanyDistributionToShareholdersPerShare" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Dividends to shareholders (in usd per share)</link:label>
    <link:label id="lab_us-gaap_InvestmentCompanyDistributionToShareholdersPerShare_label_en-US" xlink:label="lab_us-gaap_InvestmentCompanyDistributionToShareholdersPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Distribution to Shareholders, Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyDistributionToShareholdersPerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyDistributionToShareholdersPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentCompanyDistributionToShareholdersPerShare" xlink:to="lab_us-gaap_InvestmentCompanyDistributionToShareholdersPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ShareRepurchaseProgramAxis_019ff179-4f9d-761c-91b9-be91d0882069_terseLabel_en-US" xlink:label="lab_srt_ShareRepurchaseProgramAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Repurchase Program [Axis]</link:label>
    <link:label id="lab_srt_ShareRepurchaseProgramAxis_label_en-US" xlink:label="lab_srt_ShareRepurchaseProgramAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share Repurchase Program [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ShareRepurchaseProgramAxis" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ShareRepurchaseProgramAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ShareRepurchaseProgramAxis" xlink:to="lab_srt_ShareRepurchaseProgramAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_HealthcareTechnologyMember_01a1449c-9017-7d2d-88f5-5d4ad4f64ba7_terseLabel_en-US" xlink:label="lab_cswc_HealthcareTechnologyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Healthcare Technology</link:label>
    <link:label id="lab_cswc_HealthcareTechnologyMember_label_en-US" xlink:label="lab_cswc_HealthcareTechnologyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Healthcare Technology [Member]</link:label>
    <link:label id="lab_cswc_HealthcareTechnologyMember_documentation_en-US" xlink:label="lab_cswc_HealthcareTechnologyMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Healthcare Technology</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_HealthcareTechnologyMember" xlink:href="cswc-20260930.xsd#cswc_HealthcareTechnologyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_HealthcareTechnologyMember" xlink:to="lab_cswc_HealthcareTechnologyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_CapitalSouthwestCorporationAndTrinityCapitalInc.Member_019ff179-4f1a-7e68-83f5-5c5570f10e1c_terseLabel_en-US" xlink:label="lab_cswc_CapitalSouthwestCorporationAndTrinityCapitalInc.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capital Southwest Corporation And Trinity Capital Inc.</link:label>
    <link:label id="lab_cswc_CapitalSouthwestCorporationAndTrinityCapitalInc.Member_label_en-US" xlink:label="lab_cswc_CapitalSouthwestCorporationAndTrinityCapitalInc.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Southwest Corporation And Trinity Capital Inc. [Member]</link:label>
    <link:label id="lab_cswc_CapitalSouthwestCorporationAndTrinityCapitalInc.Member_documentation_en-US" xlink:label="lab_cswc_CapitalSouthwestCorporationAndTrinityCapitalInc.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Capital Southwest Corporation And Trinity Capital Inc.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_CapitalSouthwestCorporationAndTrinityCapitalInc.Member" xlink:href="cswc-20260930.xsd#cswc_CapitalSouthwestCorporationAndTrinityCapitalInc.Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_CapitalSouthwestCorporationAndTrinityCapitalInc.Member" xlink:to="lab_cswc_CapitalSouthwestCorporationAndTrinityCapitalInc.Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_label_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Cash Flows [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfCashFlowsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract" xlink:to="lab_us-gaap_StatementOfCashFlowsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DebtInstrumentYieldToMaturityAtIssuance_019ff179-4f1a-7e8c-855f-e74431167627_terseLabel_en-US" xlink:label="lab_cswc_DebtInstrumentYieldToMaturityAtIssuance" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Yield-to-maturity (in percent)</link:label>
    <link:label id="lab_cswc_DebtInstrumentYieldToMaturityAtIssuance_label_en-US" xlink:label="lab_cswc_DebtInstrumentYieldToMaturityAtIssuance" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Yield-To-Maturity At Issuance</link:label>
    <link:label id="lab_cswc_DebtInstrumentYieldToMaturityAtIssuance_documentation_en-US" xlink:label="lab_cswc_DebtInstrumentYieldToMaturityAtIssuance" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instrument, Yield-To-Maturity At Issuance</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DebtInstrumentYieldToMaturityAtIssuance" xlink:href="cswc-20260930.xsd#cswc_DebtInstrumentYieldToMaturityAtIssuance"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DebtInstrumentYieldToMaturityAtIssuance" xlink:to="lab_cswc_DebtInstrumentYieldToMaturityAtIssuance" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_MidwestRegionMember_019ff179-4f9d-7a6a-b69e-f5a4789d09af_terseLabel_en-US" xlink:label="lab_us-gaap_MidwestRegionMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Midwest</link:label>
    <link:label id="lab_us-gaap_MidwestRegionMember_label_en-US" xlink:label="lab_us-gaap_MidwestRegionMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">US Midwest Region [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MidwestRegionMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MidwestRegionMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MidwestRegionMember" xlink:to="lab_us-gaap_MidwestRegionMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DRIVELINESERVICEOFPORTLANDLLCMember_019ff179-4f9d-7a8a-b77a-85c4db805962_terseLabel_en-US" xlink:label="lab_cswc_DRIVELINESERVICEOFPORTLANDLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">DRIVE LINE SERVICE OF PORTLAND, LLC</link:label>
    <link:label id="lab_cswc_DRIVELINESERVICEOFPORTLANDLLCMember_label_en-US" xlink:label="lab_cswc_DRIVELINESERVICEOFPORTLANDLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">DRIVE LINE SERVICE OF PORTLAND, LLC [Member]</link:label>
    <link:label id="lab_cswc_DRIVELINESERVICEOFPORTLANDLLCMember_documentation_en-US" xlink:label="lab_cswc_DRIVELINESERVICEOFPORTLANDLLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">DRIVE LINE SERVICE OF PORTLAND, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DRIVELINESERVICEOFPORTLANDLLCMember" xlink:href="cswc-20260930.xsd#cswc_DRIVELINESERVICEOFPORTLANDLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DRIVELINESERVICEOFPORTLANDLLCMember" xlink:to="lab_cswc_DRIVELINESERVICEOFPORTLANDLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_TrdArrSecuritiesAggAvailAmt_terseLabel_en-US" xlink:label="lab_ecd_TrdArrSecuritiesAggAvailAmt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Aggregate Available</link:label>
    <link:label id="lab_ecd_TrdArrSecuritiesAggAvailAmt_label_en-US" xlink:label="lab_ecd_TrdArrSecuritiesAggAvailAmt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading Arrangement, Securities Aggregate Available Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrSecuritiesAggAvailAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TrdArrSecuritiesAggAvailAmt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_TrdArrSecuritiesAggAvailAmt" xlink:to="lab_ecd_TrdArrSecuritiesAggAvailAmt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentPolicyTextBlock_019ff179-4f9d-7038-86dd-0480c30f4748_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investments and Net Realized Gains or Losses and Net Unrealized Appreciation or Depreciation and Investment Valuation Process</link:label>
    <link:label id="lab_us-gaap_InvestmentPolicyTextBlock_label_en-US" xlink:label="lab_us-gaap_InvestmentPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Policy [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentPolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentPolicyTextBlock" xlink:to="lab_us-gaap_InvestmentPolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeTaxDisclosureTextBlock_019ff179-4f1a-7e07-821f-f47666cf3acf_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">INCOME TAXES</link:label>
    <link:label id="lab_us-gaap_IncomeTaxDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_IncomeTaxDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Disclosure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxDisclosureTextBlock" xlink:to="lab_us-gaap_IncomeTaxDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_DebtInstrumentBasisSpreadOnVariableRateAdjustment_019ff179-4f1a-7d92-9799-07bbeb2aa653_terseLabel_en-US" xlink:label="lab_cswc_DebtInstrumentBasisSpreadOnVariableRateAdjustment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Variable rate adjustment</link:label>
    <link:label id="lab_cswc_DebtInstrumentBasisSpreadOnVariableRateAdjustment_label_en-US" xlink:label="lab_cswc_DebtInstrumentBasisSpreadOnVariableRateAdjustment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Basis Spread on Variable Rate, Adjustment</link:label>
    <link:label id="lab_cswc_DebtInstrumentBasisSpreadOnVariableRateAdjustment_documentation_en-US" xlink:label="lab_cswc_DebtInstrumentBasisSpreadOnVariableRateAdjustment" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instrument, Basis Spread on Variable Rate, Adjustment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_DebtInstrumentBasisSpreadOnVariableRateAdjustment" xlink:href="cswc-20260930.xsd#cswc_DebtInstrumentBasisSpreadOnVariableRateAdjustment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_DebtInstrumentBasisSpreadOnVariableRateAdjustment" xlink:to="lab_cswc_DebtInstrumentBasisSpreadOnVariableRateAdjustment" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock_01a13515-c12a-7167-a134-b5528e049de5_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Balance Sheet Location of Derivative</link:label>
    <link:label id="lab_us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock" xlink:to="lab_us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ecd_PvpTable_terseLabel_en-US" xlink:label="lab_ecd_PvpTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pay vs Performance Disclosure</link:label>
    <link:label id="lab_ecd_PvpTable_label_en-US" xlink:label="lab_ecd_PvpTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pay vs Performance Disclosure [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PvpTable" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PvpTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ecd_PvpTable" xlink:to="lab_ecd_PvpTable" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_FinancialCommitmentYearOneMember_019ff179-4f9d-71bf-a347-688eb499fcdf_terseLabel_en-US" xlink:label="lab_cswc_FinancialCommitmentYearOneMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2028</link:label>
    <link:label id="lab_cswc_FinancialCommitmentYearOneMember_label_en-US" xlink:label="lab_cswc_FinancialCommitmentYearOneMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Commitment Year One [Member]</link:label>
    <link:label id="lab_cswc_FinancialCommitmentYearOneMember_documentation_en-US" xlink:label="lab_cswc_FinancialCommitmentYearOneMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial Commitment Year One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_FinancialCommitmentYearOneMember" xlink:href="cswc-20260930.xsd#cswc_FinancialCommitmentYearOneMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_FinancialCommitmentYearOneMember" xlink:to="lab_cswc_FinancialCommitmentYearOneMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityFilerCategory_019ff179-4f9d-77b9-b86a-7128c240fd61_terseLabel_en-US" xlink:label="lab_dei_EntityFilerCategory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Filer Category</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFilerCategory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFilerCategory" xlink:to="lab_dei_EntityFilerCategory" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SupplementalCashFlowElementsAbstract_019ff179-4e75-774e-8a5e-8af89c8e5ade_terseLabel_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowElementsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Supplemental cash flow disclosures:</link:label>
    <link:label id="lab_us-gaap_SupplementalCashFlowElementsAbstract_label_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowElementsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Supplemental Cash Flow Elements [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalCashFlowElementsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SupplementalCashFlowElementsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SupplementalCashFlowElementsAbstract" xlink:to="lab_us-gaap_SupplementalCashFlowElementsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_ExpirationTrancheOneMember_019ff179-4f1a-79f5-8057-1a5f99da8f99_terseLabel_en-US" xlink:label="lab_cswc_ExpirationTrancheOneMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">February 2027</link:label>
    <link:label id="lab_cswc_ExpirationTrancheOneMember_label_en-US" xlink:label="lab_cswc_ExpirationTrancheOneMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expiration Tranche One [Member]</link:label>
    <link:label id="lab_cswc_ExpirationTrancheOneMember_documentation_en-US" xlink:label="lab_cswc_ExpirationTrancheOneMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Expiration Tranche One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_ExpirationTrancheOneMember" xlink:href="cswc-20260930.xsd#cswc_ExpirationTrancheOneMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_ExpirationTrancheOneMember" xlink:to="lab_cswc_ExpirationTrancheOneMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SpecialtyRetailSectorMember_019ff179-4f9d-7c62-a056-8c84d8ce644a_terseLabel_en-US" xlink:label="lab_cswc_SpecialtyRetailSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Specialty Retail</link:label>
    <link:label id="lab_cswc_SpecialtyRetailSectorMember_label_en-US" xlink:label="lab_cswc_SpecialtyRetailSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Specialty Retail Sector [Member]</link:label>
    <link:label id="lab_cswc_SpecialtyRetailSectorMember_documentation_en-US" xlink:label="lab_cswc_SpecialtyRetailSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Specialty Retail Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SpecialtyRetailSectorMember" xlink:href="cswc-20260930.xsd#cswc_SpecialtyRetailSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SpecialtyRetailSectorMember" xlink:to="lab_cswc_SpecialtyRetailSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfSubsidiaryOrEquityMethodInvesteeTable_019ff179-4f9d-7768-a243-341fa72a164b_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfSubsidiaryOrEquityMethodInvesteeTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Subsidiary or Equity Method Investee [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfSubsidiaryOrEquityMethodInvesteeTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfSubsidiaryOrEquityMethodInvesteeTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsidiary or Equity Method Investee, Sale of Stock [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSubsidiaryOrEquityMethodInvesteeTable" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfSubsidiaryOrEquityMethodInvesteeTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfSubsidiaryOrEquityMethodInvesteeTable" xlink:to="lab_us-gaap_ScheduleOfSubsidiaryOrEquityMethodInvesteeTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DividendsAxis_019ff179-4f9d-750b-986e-0e3a6e61b4ae_terseLabel_en-US" xlink:label="lab_us-gaap_DividendsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends [Axis]</link:label>
    <link:label id="lab_us-gaap_DividendsAxis_label_en-US" xlink:label="lab_us-gaap_DividendsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DividendsAxis" xlink:to="lab_us-gaap_DividendsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_RestaurantsSectorMember_019ff179-4f1a-7d02-9ea7-8b7a15d39b1d_terseLabel_en-US" xlink:label="lab_cswc_RestaurantsSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restaurants</link:label>
    <link:label id="lab_cswc_RestaurantsSectorMember_label_en-US" xlink:label="lab_cswc_RestaurantsSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restaurants Sector [Member]</link:label>
    <link:label id="lab_cswc_RestaurantsSectorMember_documentation_en-US" xlink:label="lab_cswc_RestaurantsSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Restaurants Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_RestaurantsSectorMember" xlink:href="cswc-20260930.xsd#cswc_RestaurantsSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_RestaurantsSectorMember" xlink:to="lab_cswc_RestaurantsSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_LesseeOperatingLeaseLiabilityUndiscountedExcessAmountNotDisclosed_019ff179-4e75-7a79-a351-8742c9282553_terseLabel_en-US" xlink:label="lab_cswc_LesseeOperatingLeaseLiabilityUndiscountedExcessAmountNotDisclosed" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Undiscounted excess amount not disclosed</link:label>
    <link:label id="lab_cswc_LesseeOperatingLeaseLiabilityUndiscountedExcessAmountNotDisclosed_label_en-US" xlink:label="lab_cswc_LesseeOperatingLeaseLiabilityUndiscountedExcessAmountNotDisclosed" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Operating Lease, Liability, Undiscounted Excess Amount Not Disclosed</link:label>
    <link:label id="lab_cswc_LesseeOperatingLeaseLiabilityUndiscountedExcessAmountNotDisclosed_documentation_en-US" xlink:label="lab_cswc_LesseeOperatingLeaseLiabilityUndiscountedExcessAmountNotDisclosed" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Lessee, Operating Lease, Liability, Undiscounted Excess Amount Not Disclosed</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_LesseeOperatingLeaseLiabilityUndiscountedExcessAmountNotDisclosed" xlink:href="cswc-20260930.xsd#cswc_LesseeOperatingLeaseLiabilityUndiscountedExcessAmountNotDisclosed"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_LesseeOperatingLeaseLiabilityUndiscountedExcessAmountNotDisclosed" xlink:to="lab_cswc_LesseeOperatingLeaseLiabilityUndiscountedExcessAmountNotDisclosed" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_TreasuryStockRetiredCostMethodAmount_019ff179-4f1a-73ff-8430-cad59af5acfd_verboseLabel_en-US" xlink:label="lab_us-gaap_TreasuryStockRetiredCostMethodAmount" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Aggregate cost of shares repurchased</link:label>
    <link:label id="lab_us-gaap_TreasuryStockRetiredCostMethodAmount_label_en-US" xlink:label="lab_us-gaap_TreasuryStockRetiredCostMethodAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Treasury Stock, Retired, Cost Method, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockRetiredCostMethodAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockRetiredCostMethodAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TreasuryStockRetiredCostMethodAmount" xlink:to="lab_us-gaap_TreasuryStockRetiredCostMethodAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ConcentrationRiskBenchmarkDomain_019ff179-4f9d-71b7-9af7-4c2435d7536d_terseLabel_en-US" xlink:label="lab_us-gaap_ConcentrationRiskBenchmarkDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Concentration Risk Benchmark [Domain]</link:label>
    <link:label id="lab_us-gaap_ConcentrationRiskBenchmarkDomain_label_en-US" xlink:label="lab_us-gaap_ConcentrationRiskBenchmarkDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Concentration Risk Benchmark [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain" xlink:to="lab_us-gaap_ConcentrationRiskBenchmarkDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetInvestmentIncomeAbstract_019ff179-4f9d-73e6-871e-08fe8902cfe1_terseLabel_en-US" xlink:label="lab_us-gaap_NetInvestmentIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment income:</link:label>
    <link:label id="lab_us-gaap_NetInvestmentIncomeAbstract_label_en-US" xlink:label="lab_us-gaap_NetInvestmentIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Investment Income [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentIncomeAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetInvestmentIncomeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetInvestmentIncomeAbstract" xlink:to="lab_us-gaap_NetInvestmentIncomeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss_019ff179-4f1a-7550-9f26-1ec7c6854c0c_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">YTD Unrealized Appreciation (Depreciation) on Investments held at period end</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss" xlink:to="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_MERCURYACQUISITION2021LLCMember_019ff179-4e74-7820-81ff-7a3f89ffe44c_terseLabel_en-US" xlink:label="lab_cswc_MERCURYACQUISITION2021LLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">MERCURY ACQUISITION 2021, LLC</link:label>
    <link:label id="lab_cswc_MERCURYACQUISITION2021LLCMember_label_en-US" xlink:label="lab_cswc_MERCURYACQUISITION2021LLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">MERCURY ACQUISITION 2021, LLC [Member]</link:label>
    <link:label id="lab_cswc_MERCURYACQUISITION2021LLCMember_documentation_en-US" xlink:label="lab_cswc_MERCURYACQUISITION2021LLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">MERCURY ACQUISITION 2021, LLC</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_MERCURYACQUISITION2021LLCMember" xlink:href="cswc-20260930.xsd#cswc_MERCURYACQUISITION2021LLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_MERCURYACQUISITION2021LLCMember" xlink:to="lab_cswc_MERCURYACQUISITION2021LLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressAddressLine2_019ff179-4e75-73a7-92a8-3b60489844b2_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, Address Line Two</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine2"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine2" xlink:to="lab_dei_EntityAddressAddressLine2" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GrossInvestmentIncomeOperating_019ff179-4f1a-7580-8ad1-405d82415f31_totalLabel_en-US" xlink:label="lab_us-gaap_GrossInvestmentIncomeOperating" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total investment income</link:label>
    <link:label id="lab_us-gaap_GrossInvestmentIncomeOperating_label_en-US" xlink:label="lab_us-gaap_GrossInvestmentIncomeOperating" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross Investment Income, Operating</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossInvestmentIncomeOperating" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GrossInvestmentIncomeOperating"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GrossInvestmentIncomeOperating" xlink:to="lab_us-gaap_GrossInvestmentIncomeOperating" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2036PoolMember_01a11d0a-d077-771e-b01f-c83d9f09a923_terseLabel_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2036PoolMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debentures due September 2036</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2036PoolMember_label_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2036PoolMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures Due, September 2036 Pool [Member]</link:label>
    <link:label id="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2036PoolMember_documentation_en-US" xlink:label="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2036PoolMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Small Business Administration Debentures Due, September 2036 Pool</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_SmallBusinessAdministrationDebenturesDueSeptember2036PoolMember" xlink:href="cswc-20260930.xsd#cswc_SmallBusinessAdministrationDebenturesDueSeptember2036PoolMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_SmallBusinessAdministrationDebenturesDueSeptember2036PoolMember" xlink:to="lab_cswc_SmallBusinessAdministrationDebenturesDueSeptember2036PoolMember" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_BusinessServicesSectorMember_019ff179-4f1a-7929-b2ad-23e75b063d92_terseLabel_en-US" xlink:label="lab_cswc_BusinessServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business Services</link:label>
    <link:label id="lab_cswc_BusinessServicesSectorMember_label_en-US" xlink:label="lab_cswc_BusinessServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Services Sector [Member]</link:label>
    <link:label id="lab_cswc_BusinessServicesSectorMember_documentation_en-US" xlink:label="lab_cswc_BusinessServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Business Services Sector</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_BusinessServicesSectorMember" xlink:href="cswc-20260930.xsd#cswc_BusinessServicesSectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_BusinessServicesSectorMember" xlink:to="lab_cswc_BusinessServicesSectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeLiabilities_01a10bf5-81da-7e56-b819-f1bf5e8506c8_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative liabilities</link:label>
    <link:label id="lab_us-gaap_DerivativeLiabilities_01a10bfd-90be-7505-a8fb-0c39b3950b52_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DerivativeLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Gross Amount of Recognized Liabilities</link:label>
    <link:label id="lab_us-gaap_DerivativeLiabilities_label_en-US" xlink:label="lab_us-gaap_DerivativeLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Liability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeLiabilities" xlink:to="lab_us-gaap_DerivativeLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressAddressLine1_019ff179-4e75-7b64-8d2a-e1b05461b807_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine1" xlink:to="lab_dei_EntityAddressAddressLine1" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_019ff179-4f1a-7a1f-bbf1-b1215c1b045b_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Vested (in usd per share)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_019ff179-4e75-724c-b867-e5767cd8d3df_totalLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total income tax (benefit) provision</link:label>
    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_label_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Expense (Benefit)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit" xlink:to="lab_us-gaap_IncomeTaxExpenseBenefit" xlink:type="arc" order="1"/>
    <link:label id="lab_cswc_InvestmentCompanyTargetInvestmentAnnualEarningsBeforeInterestTaxesDepreciationAndAmortization_019ff179-4f1a-78e5-89ed-2a984056c588_terseLabel_en-US" xlink:label="lab_cswc_InvestmentCompanyTargetInvestmentAnnualEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Target company, annual EBITDA</link:label>
    <link:label id="lab_cswc_InvestmentCompanyTargetInvestmentAnnualEarningsBeforeInterestTaxesDepreciationAndAmortization_label_en-US" xlink:label="lab_cswc_InvestmentCompanyTargetInvestmentAnnualEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company, Target Investment, Annual Earnings Before Interest, Taxes, Depreciation And Amortization</link:label>
    <link:label id="lab_cswc_InvestmentCompanyTargetInvestmentAnnualEarningsBeforeInterestTaxesDepreciationAndAmortization_documentation_en-US" xlink:label="lab_cswc_InvestmentCompanyTargetInvestmentAnnualEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company, Target Investment, Annual Earnings Before Interest, Taxes, Depreciation And Amortization</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cswc_InvestmentCompanyTargetInvestmentAnnualEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:href="cswc-20260930.xsd#cswc_InvestmentCompanyTargetInvestmentAnnualEarningsBeforeInterestTaxesDepreciationAndAmortization"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cswc_InvestmentCompanyTargetInvestmentAnnualEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:to="lab_cswc_InvestmentCompanyTargetInvestmentAnnualEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:type="arc" order="1"/>
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    <link:label id="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueRollForward_label_en-US" xlink:label="lab_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments in and Advances to Affiliates, at Fair Value [Roll Forward]</link:label>
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