SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	6 Months Ended
Jun. 30, 2025
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Selected Terms Used in Notes to the Condensed Consolidated Financial Statements ASA – Administrative Service Agreement ASC – Accounting Standards Codification ASU – Accounting Standards Update CPA firm – Certified Public Accounting firm FASB – The Financial Accounting Standards Board GAAP – United States Generally Accepted Accounting Principles SOFR – Secured Overnight Financing Rate SEC – United States Securities and Exchange Commission Marcum Acquisition - the Transaction Description of Business: CBIZ, Inc., together with all of its wholly-owned subsidiaries ("CBIZ", the "Company", "we", "us", or "our"), is a diversified services company which, acting through its subsidiaries, has been providing professional business services since 1996, primarily to small and medium-sized businesses, as well as individuals, governmental entities, and not-for-profit enterprises throughout the United States and parts of Canada. CBIZ manages and reports its operations along three practice groups: Financial Services, Benefits and Insurance Services and National Practices. A further description of products and services offered by each of the practice groups is provided in Note 13, Segment Disclosures. In December of 2024, the Company formed CBIZ CC, LLC and CBIZ Campus One Cell, LLC (collectively “Captive Insurance Company”). CBIZ CC, LLC, a sponsored captive core, is not expected to have any underwriting activities. CBIZ Campus One Cell, LLC, a sponsored captive cell, provides stop-loss coverages to a group of higher education institutions who self-insure their medical and prescription drug benefits. The term of the insurance policy is one year, and the insured is billed at the beginning of each month for that month’s coverage. Registered in the State of Vermont, the Captive Insurance Company commenced operation on January 1, 2025. The Captive Insurance Company recognizes premium as revenue monthly as monthly coverage expires. For the three and six months ended June 30, 2025, revenue from the Captive Insurance Company was not material. Basis of Consolidation: The accompanying unaudited condensed consolidated financial statements include the operations of CBIZ, Inc. and all of its wholly-owned subsidiaries after elimination of all intercompany balances and transactions. We have determined that our relationship with certain CPA firms with which we maintain ASAs qualify as variable interest entities ("VIEs"), and we are the primary beneficiary of such VIEs. The accompanying unaudited condensed consolidated financial statements do not reflect the operations or accounts of the VIEs as the impact is not material to the financial condition, results of operations, or cash flows of CBIZ. Unaudited Interim Financial Statements: The unaudited condensed consolidated financial statements have been prepared in accordance with GAAP and applicable rules and regulations of the SEC regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. As such, the information included in this Quarterly Report on Form 10-Q should be read in conjunction with the consolidated financial statements and accompanying notes included in our Annual Report on Form 10-K for the year ended December 31, 2024. In the opinion of CBIZ management, the accompanying unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial condition, results of operations, and cash flows for the interim periods presented, but are not necessarily indicative of the results of operations to be anticipated for the full year ending December 31, 2025. Use of Estimates: The preparation of unaudited condensed consolidated financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the amounts reported and disclosed in the financial statements and the accompanying notes. Changes in circumstances could cause actual results to differ materially from these estimates. Changes in Accounting Policies: We have consistently applied the accounting policies for the periods presented as described in Note 1, Basis of Presentation and Significant Accounting Policies, to the consolidated financial statements contained in our Annual Report on Form 10-K for the year ended December 31, 2024. Certain prior period amounts have been reclassified to conform to current year presentation.

Description of Business: CBIZ, Inc., together with all of its wholly-owned subsidiaries ("CBIZ", the "Company", "we", "us", or "our"), is a diversified services company which, acting through its subsidiaries, has been providing professional business services since 1996, primarily to small and medium-sized businesses, as well as individuals, governmental entities, and not-for-profit enterprises throughout the United States and parts of Canada. CBIZ manages and reports its operations along three practice groups: Financial Services, Benefits and Insurance Services and National Practices. A further description of products and services offered by each of the practice groups is provided in Note 13, Segment Disclosures.

In December of 2024, the Company formed CBIZ CC, LLC and CBIZ Campus One Cell, LLC (collectively “Captive Insurance Company”). CBIZ CC, LLC, a sponsored captive core, is not expected to have any underwriting activities. CBIZ Campus One Cell, LLC, a sponsored captive cell, provides stop-loss coverages to a group of higher education institutions who self-insure their medical and prescription drug benefits. The term of the insurance policy is one year, and the insured is billed at the beginning of each month for that month’s coverage. Registered in the State of Vermont, the Captive Insurance Company commenced operation on January 1, 2025.

The Captive Insurance Company recognizes premium as revenue monthly as monthly coverage expires. For the three and six months ended June 30, 2025, revenue from the Captive Insurance Company was not material.

Basis of Consolidation: The accompanying unaudited condensed consolidated financial statements include the operations of CBIZ, Inc. and all of its wholly-owned subsidiaries after elimination of all intercompany balances and transactions. We have determined that our relationship with certain CPA firms with which we maintain ASAs qualify as variable interest entities ("VIEs"), and we are the primary beneficiary of such VIEs. The accompanying unaudited condensed consolidated financial statements do not reflect the operations or accounts of the VIEs as the impact is not material to the financial condition, results of operations, or cash flows of CBIZ.

Unaudited Interim Financial Statements: The unaudited condensed consolidated financial statements have been prepared in accordance with GAAP and applicable rules and regulations of the SEC regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. As such, the information included in this Quarterly Report on Form 10-Q should be read in conjunction with the consolidated financial statements and accompanying notes included in our Annual Report on Form 10-K for the year ended December 31, 2024.

In the opinion of CBIZ management, the accompanying unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial condition, results of operations, and cash flows for the interim periods presented, but are not necessarily indicative of the results of operations to be anticipated for the full year ending December 31, 2025.

Use of Estimates: The preparation of unaudited condensed consolidated financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the amounts reported and disclosed in the financial statements and the accompanying notes. Changes in circumstances could cause actual results to differ materially from these estimates.

Changes in Accounting Policies: We have consistently applied the accounting policies for the periods presented as described in Note 1, Basis of Presentation and Significant Accounting Policies, to the consolidated financial statements contained in our Annual Report on Form 10-K for the year ended December 31, 2024.