This preliminary prospectus supplement relates to an effective registration statement under the Securities Act of 1933, as amended, but the information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell and are not soliciting an offer to buy these securities in any jurisdiction where the offer and sale is not permitted.

Filed pursuant to Rule 424(b)(2)
Securities Act File No. 333-265533

Subject to Completion, dated July 31, 2025

PRELIMINARY PROSPECTUS SUPPLEMENT
(to Prospectus dated September 26, 2022)

$            

Oxford Square Capital Corp.

% Notes due 2030

_______________________________________

We are offering $            million in aggregate principal amount of            % notes due 2030, which we refer to as the “Notes.” The Notes will mature on            , 2030. We will pay interest on the Notes on            ,            ,            and            of each year, beginning on            , 2025. We may redeem the Notes in whole or in part at any time, or from time to time, on or after            , 2027, at the redemption price of par, plus accrued interest, as discussed under the caption “Description of the Notes — Optional Redemption” in this prospectus supplement. The Notes will be issued in minimum denominations of $25 and integral multiples of $25 in excess thereof.

The Notes will be our direct unsecured obligations and rank pari passu, which means equal to, all outstanding and future unsecured unsubordinated indebtedness issued by us, including our 6.25% Unsecured Notes due 2026, or the “6.25% Unsecured Notes,” and our 5.50% Unsecured Notes due 2028, the “5.50% Unsecured Notes,” of which we had $24.8 million and $80.5 million outstanding, respectively, as of July 24, 2025, as well as our general liabilities, which were approximately $16.1 million as of July 24, 2025 and which consist of trade and other payables, including temporary indebtedness of approximately $10.0 million resulting from securities purchases that have not yet settled, any outstanding dividend payable, base advisory fees payable, interest and debt fees payable, vendor payables and accrued expenses such as auditor fees, legal fees, director fees, etc. The Notes will be senior to any of our future indebtedness that expressly provides it is subordinated to the Notes. Because the Notes will not be secured by any of our assets, they will be effectively subordinated to all of our future secured indebtedness (including indebtedness that is initially unsecured to which we subsequently grant security), to the extent of the value of the assets securing such indebtedness. The Notes will be structurally subordinated to all future indebtedness and other obligations of any of our future subsidiaries, financing vehicles, or similar facilities, if any, since the Notes are obligations exclusively of Oxford Square Capital Corp. and will not be obligations of any of our subsidiaries. We currently do not have outstanding debt that is subordinated to the Notes, and we do not currently intend to issue indebtedness that expressly provides that it is subordinated to the Notes. The Notes will not be required to be guaranteed by any subsidiary we may acquire or create in the future. We do not currently anticipate issuing any subordinated indebtedness, but if we did issue such indebtedness, and it was expressly stated to be subordinated to the Notes, then the Notes will be senior to such indebtedness. In any liquidation, dissolution, bankruptcy or other similar proceeding, the holders of any of our future secured indebtedness may assert rights against the assets pledged to secure that indebtedness in order to receive full payment of their indebtedness before the assets may be used to pay other creditors, including the holders of the Notes, and any assets of our subsidiaries will not be directly available to satisfy the claims of our creditors, including holders of the Notes.

We intend to list the Notes on the NASDAQ Global Select Market and we expect trading to commence thereon within 30 days of the original issue date under the trading symbol “            .” The Notes are expected to trade “flat.” This means that purchasers will not pay, and sellers will not receive, any accrued and unpaid interest on the Notes that is not included in the trading price. Currently, there is no public market for the Notes and there can be no assurance that one will develop.

Please read this prospectus supplement, the accompanying prospectus, and the documents incorporated by reference into this prospectus supplement and the accompanying prospectus before investing in the Notes, and keep each for future reference. This prospectus supplement, the accompanying prospectus, and the documents incorporated by reference into this prospectus supplement and the accompanying prospectus contain important information about us that a prospective investor should know before investing in the Notes. We are required to file annual, quarterly and current reports, proxy statements, and other information about us with the Securities and Exchange Commission, or “SEC”. This information is available free of charge by contacting us by mail at 8 Sound Shore Drive, Suite 255, Greenwich, CT 06830, by telephone at (203) 983-5275 or on our website at http://www.oxfordsquarecapital.com. The SEC also maintains a website at http://www.sec.gov that contains such information. Information contained on our website is not incorporated by reference into this prospectus supplement or the accompanying prospectus, and you should not consider that information to be part of this prospectus supplement or the accompanying prospectus, except documents incorporated by reference into this prospectus supplement or the accompanying prospectus.

Investing in the Notes involves a high degree of risk and should be considered speculative. For more information regarding the risks you should consider, including the risk of leverage, please see “Supplementary Risk Factors” beginning on page S-14 of this prospectus supplement and “Risk Factors” on page 7 of the accompanying prospectus and under similar headings in the documents that are incorporated by reference into this prospectus supplement and the accompanying prospectus.

Neither the Securities and Exchange Commission nor any other regulatory body has approved or disapproved of these securities or determined if either this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

The underwriters have agreed to purchase the Notes from us at            % of the aggregate principal amount of the Notes (resulting in $            in aggregate proceeds to us, before deducting expenses payable by us). The underwriters propose to offer the Notes for sale, from time to time, in one or more negotiated transactions, at prices that may be different than par. These sales may occur at market prices prevailing at the time of sale, at prices related to such prevailing market prices or at prices negotiated by the joint book-running managers or with approval from the joint book-running managers.

____________

(1)          Lucid Capital Markets, LLC, or “Lucid,” as representative of the underwriters, may exercise an option to purchase up to an additional $            million total aggregate principal amount of Notes offered hereby, within 30 days of the date of this prospectus supplement. If this option is exercised in full, the total public offering price will be $ , the total underwriting discount (sales load) paid by us will be $ , and total proceeds to us, before expenses, will be $            .

(2)          Total expenses of the offering payable by us, excluding underwriting discounts and commissions, are estimated to be $ . See “Underwriting” in this prospectus supplement for complete details of underwriters’ compensation.

THE NOTES ARE NOT DEPOSITS OR OTHER OBLIGATIONS OF A BANK AND ARE NOT INSURED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION OR ANY OTHER GOVERNMENT AGENCY.

Delivery of the Notes in book-entry form only through The Depository Trust Company will be made on or about            , 2025.

_______________________________________

The date of this prospectus supplement is            , 2025

TABLE OF CONTENTS

PROSPECTUS SUPPLEMENT

PROSPECTUS

ABOUT THIS PROSPECTUS SUPPLEMENT

We have filed with the SEC a registration statement on Form N-2 (File No. 333-265533) utilizing a shelf registration process relating to the securities described in this prospectus supplement, which registration statement was declared effective on September 26, 2022.

This document is in two parts. The first part is the prospectus supplement, which describes the terms of this offering of the Notes and also adds to and updates information contained in the accompanying prospectus. The second part is the accompanying prospectus, which gives more general information and disclosure. To the extent the information contained in this prospectus supplement differs from or is additional to the information contained in the accompanying prospectus, you should rely only on the information contained in this prospectus supplement and the documents incorporated by reference herein. Please carefully read and consider all of the information contained in this prospectus supplement and the accompanying prospectus, including the information described under the headings “Incorporation of Certain Information by Reference,” “Available Information,” and “Supplementary Risk Factors” in this prospectus supplement and under the headings “Incorporation of Certain Information by Reference,” “Available Information,” and “Risk Factors” included in the accompanying prospectus, respectively, before investing in the Notes.

You should rely only on the information contained in this prospectus supplement and the accompanying prospectus. Neither we nor the underwriters have authorized any dealer, salesman or other person to give any information or to make any representation other than those contained in or incorporated by reference into this prospectus supplement and the accompanying prospectus. If anyone provides you with different or inconsistent information, you should not rely on it. This prospectus supplement and the accompanying prospectus do not constitute an offer to sell or a solicitation of an offer to buy any security other than the Notes, nor do they constitute an offer to sell or a solicitation of an offer to buy any securities in any jurisdiction or to any person to whom it is unlawful to make such an offer or solicitation in such jurisdiction. The information contained in or incorporated by reference into this prospectus supplement and the accompanying prospectus is accurate as of their respective dates or such earlier date as indicated therein, regardless of the time of delivery of this prospectus supplement and the accompanying prospectus or any sales of the Notes. Our financial condition, results of operations and prospects may have changed since those dates. To the extent required by law, we will amend or supplement the information contained in or incorporated by reference into this prospectus supplement and the accompanying prospectus to reflect any material changes subsequent to the date of this prospectus supplement and the accompanying prospectus and prior to the completion of any offering pursuant to this prospectus supplement and the accompanying prospectus.

The Notes do not represent a deposit or obligation of, and are not guaranteed or endorsed by, any bank or other insured depository institution, and are not federally insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

This prospectus supplement and the accompanying prospectus, including the documents incorporated by reference herein and therein, contain forward-looking statements that involve substantial risks and uncertainties. These forward-looking statements are not historical facts, but rather are based on current expectations, estimates and projections about our business, our current and prospective portfolio investments, our industry, our beliefs, and our assumptions. Words such as “anticipates,” “expects,” “intends,” “plans,” “will,” “may,” “continue,” “believes,” “seeks,” “estimates,” “would,” “could,” “should,” “targets,” “projects,” and variations of these words and similar expressions are intended to identify forward-looking statements.

The forward-looking statements contained in this prospectus supplement and the accompanying prospectus, including the documents incorporated by reference herein and therein, involve risks and uncertainties, including statements as to:

•        our future operating results, including our ability to achieve objectives;

•        our business prospects and the prospects of our portfolio companies;

•        the impact of investments that we expect to make;

•        our contractual arrangements and relationships with third parties;

•        the dependence of our future success on the general economy and its impact on the industries in which we invest;

•        the ability of our portfolio companies to achieve their objectives;

•        the valuation of our investments in portfolio companies and CLOs, particularly those having no liquid trading market;

•        market conditions and our ability to access alternative debt markets and additional debt and equity capital;

•        our expected financings and investments;

•        the adequacy of our cash resources and working capital;

•        the timing of cash flows, if any, from the operations of our portfolio companies and CLO investments; and

•        the ability of our investment adviser to locate suitable investments for us and monitor and administer our investments.

These statements are not guarantees of future performance and are subject to risks, uncertainties, and other factors, some of which are beyond our control and difficult to predict and could cause actual results to differ materially from those expressed or forecasted in the forward-looking statements, including without limitation:

•        an economic downturn, could impair our portfolio companies’ and CLO investments’ ability to continue to operate, which could lead to the loss of some or all of our investments in such portfolio companies and CLO investments;

•        a contraction of available credit and/or an inability to access the equity markets, could impair our lending and investment activities;

•        interest rate volatility could adversely affect our results, particularly because we use leverage as part of our investment strategy;

•        inflation and its impact on our investment activities and the industries in which we invest;

•        currency fluctuations could adversely affect the results of our investments in foreign companies, particularly to the extent that we receive payments denominated in foreign currency rather than U.S. dollars;

•        information technology system failures, data security breaches, data privacy compliance, network disruptions and cybersecurity attacks;

•        the risks, uncertainties and other factors we identify in “Part I, Item 1A. Risk Factors” and elsewhere in our Annual Report on Form 10-K and in our filings with the SEC.

Although we believe that the assumptions on which these forward-looking statements are based are reasonable, any of those assumptions could prove to be inaccurate, and as a result, the forward-looking statements based on those assumptions also could be inaccurate. Important assumptions include our ability to originate new loans and investments, certain margins and levels of profitability and the availability of additional capital. In light of these and other uncertainties, the inclusion of a projection or forward-looking statement in this prospectus supplement or the accompanying prospectus should not be regarded as a representation by us that our plans and objectives will be achieved. These risks and uncertainties include those described or identified in “Supplementary Risk Factors” in this prospectus supplement and “Risk Factors” in the accompanying prospectus, our most recent Annual Report on Form 10-K, and our most recent Quarterly Report on Form 10-Q. You should not place undue reliance on these forward-looking statements, which are based on information available to us as of the applicable dates of this prospectus supplement and the accompanying prospectus, including any documents incorporated by reference to this prospectus supplement or the accompanying prospectus, and while we believe such information forms, or will form, a reasonable basis for such statements, such information may be limited or incomplete, and our statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of, all potentially available relevant information. These statements are inherently uncertain and investors are cautioned not to unduly rely on these statements.

However, we undertake no obligation to update this prospectus supplement and the documents incorporated by reference herein to reflect any material changes to the information contained herein. The forward-looking statements contained in this prospectus, including the documents that we incorporate by reference herein, are excluded from the safe harbor protection provided by Section 27A of the Securities Act of 1933, as amended (the “Securities Act”).

USE OF PROCEEDS

We estimate that the net proceeds we will receive from the sale of the $            million aggregate principal amount of Notes in this offering will be approximately $            million (or approximately $            million if the underwriters fully exercise their overallotment option), in each case based on the underwriters purchasing the Notes from us at            % of the aggregate principal amount, after deducting the underwriting discounts and commissions of $            million (or approximately $            million if the underwriters fully exercise their overallotment option) payable by us and estimated offering expenses of approximately $            payable by us.

We intend to use the net proceeds from this offering to repay indebtedness, acquire investments in accordance with our investment objective and strategies described in this prospectus supplement and for general corporate purposes.

We anticipate that substantially all of the net proceeds of this offering will be used for the above purposes within approximately three to six months from the consummation of such offering, depending on the availability of appropriate investment opportunities consistent with our investment objective and market conditions. We cannot assure you we will achieve our targeted investment pace.

Pending such investments, we will invest the net proceeds primarily in cash, cash equivalents, U.S. government securities and other high-quality investments that mature in one year or less from the date of investment, which are consistent with maintaining our election as a RIC. These temporary investments are expected to provide a lower net return than we hope to achieve from our target investments. The management fee payable by us to our investment adviser will not be reduced while our assets are invested in such temporary investments.

CAPITALIZATION

The following table sets forth our capitalization:

•        on an actual basis as of March 31, 2025; and

•        on an as adjusted basis to reflect the sale of $            million aggregate principal amount of the Notes offered hereby (assuming no exercise of the underwriters’ overallotment option) based on the underwriters purchasing the Notes from us at            % of the aggregate principal amount, but without giving effect to the use of the cash proceeds from such sale as described in “Use of Proceeds.”

This table should be read in conjunction with “Use of Proceeds” in this prospectus supplement. The adjusted information is illustrative only.

____________

(1)      Excludes any exercise of the underwriters’ option to purchase additional Notes.

____________

DESCRIPTION OF THE NOTES

The Notes will be issued under a base indenture, dated as of April 12, 2017, and the fourth supplemental indenture thereto, to be entered into between us and U.S. Bank Trust Company, National Association, as trustee. We refer to the indenture, as well as the fourth supplemental indenture thereto, as the indenture and to U.S. Bank Trust Company, National Association as the trustee. The Notes are governed by the indenture, as required by federal law for all bonds and notes of companies that are publicly offered. An indenture is a contract between us and the financial institution acting as trustee on your behalf, and is subject to and governed by the Trust Indenture Act of 1939, as amended. The trustee has two main roles. First, the trustee can enforce your rights against us if we default. There are some limitations on the extent to which the trustee acts on your behalf, described in the second paragraph under “— Events of Default — Remedies if an Event of Default Occurs.” Second, the trustee performs certain administrative duties for us with respect to our Notes.

This section includes a description of the material terms of the Notes and the indenture. Because this section is a summary, however, it does not describe every aspect of the Notes and the indenture. We urge you to read the indenture because it, and not this description, defines your rights as a holder of the Notes. The indenture and the fourth supplemental indenture will be attached as exhibits to a filing that we make with the SEC in connection with this offering. See “Available Information” for information on how to obtain a copy of the indenture.

General

The Notes will mature on            , 2030. The principal payable at maturity will be 100% of the aggregate principal amount. The interest rate of the Notes is            % per year and will be paid every            ,            ,            and            , beginning            , 2025, and the regular record dates for interest payments will be every            ,            ,            , and            , beginning            , 2025. If an interest payment date falls on a non-business day, the applicable interest payment will be made on the next business day and no additional interest will accrue as a result of such delayed payment. The initial interest period will be the period from and including            , 2025, to, but excluding, the initial interest payment date, and the subsequent interest periods will be the periods from and including an interest payment date to, but excluding, the next interest payment date or the stated maturity date, as the case may be.

We will issue the Notes in denominations of $25 and integral multiples of $25 in excess thereof. The Notes will not be subject to any sinking fund and holders of the Notes will not have the option to have the Notes repaid prior to the stated maturity date.

Except as described under the captions “— Events of Default,” “— Other Covenants,” and “— Merger or Consolidation” in this prospectus, the indenture does not contain any provisions that give you protection in the event we issue a large amount of debt or we are acquired by another entity.

We have the ability to issue indenture securities with terms different from the Notes and, without the consent of the holders thereof, to reopen the Notes and issue additional Notes.

Optional Redemption

The Notes may be redeemed in whole or in part at any time or from time to time at our option on or after            , 2027 upon not less than 30 days nor more than 60 days written notice by mail prior to the date fixed for redemption thereof, at a redemption price of 100% of the outstanding principal amount of the Notes to be redeemed plus accrued and unpaid interest payments otherwise payable thereon for the then-current quarterly interest period accrued to, but excluding, the date fixed for redemption.

If we redeem only some of the Notes, the trustee or, with respect to global securities, The Depository Trust Company, New York, New York, known as DTC, will determine the method for selection of the particular Notes to be redeemed, in accordance with the indenture and the 1940 Act and in accordance with the rules of any national securities exchange or quotation system on which the Notes are listed. Unless we default in payment of the redemption price, on and after the date of redemption, interest will cease to accrue on the Notes called for redemption.

You may be prevented from exchanging or transferring the Notes when they are subject to redemption. In case any Notes are to be redeemed in part only, the redemption notice will provide that, upon surrender of such Note, you will receive, without a charge, a new Note or Notes of authorized denominations representing the principal amount of your remaining unredeemed Notes. Any exercise of our option to redeem the Notes will be done in compliance with the 1940 Act.

Global Securities

Each Note will be issued in book-entry form and represented by a global security that we deposit with and register in the name of DTC, or its nominee. A global security may not be transferred to or registered in the name of anyone other than the depositary or its nominee, unless special termination situations arise. As a result of these arrangements, the depositary, or its nominee, will be the sole registered owner and holder of all the Notes represented by a global security, and investors will be permitted to own only beneficial interests in a global security. For more information about these arrangements, see “— Book-Entry Procedures” below.

Termination of a Global Security

If a global security is terminated for any reason, interests in it will be exchanged for certificates in non-book-entry form (certificated securities). After that exchange, the choice of whether to hold the certificated Notes directly or in street name will be up to the investor. Investors must consult their own banks or brokers to find out how to have their interests in a global security transferred on termination to their own names, so that they will be holders.

Payment and Paying Agents

We will pay interest to the person listed in the trustee’s records as the owner of the Notes at the close of business on a particular day in advance of each due date for interest, even if that person no longer owns the Note on the interest due date. That day, usually about two weeks in advance of the interest due date, is called the “record date.” Because we will pay all the interest for an interest period to the holders on the record date, holders buying and selling the Notes must work out between themselves the appropriate purchase price. The most common manner is to adjust the sales price of the Notes to prorate interest fairly between buyer and seller based on their respective ownership periods within the particular interest period. This prorated interest amount is called “accrued interest.”

Payments on Global Securities

We will make payments on the Notes so long as they are represented by a global security in accordance with the applicable policies of the depositary as in effect from time to time. Under those policies, we will make payments directly to the depositary, or its nominee, and not to any indirect holders who own beneficial interests in the global security. An indirect holder’s right to those payments will be governed by the rules and practices of the depositary and its participants, as described under “— Book-Entry Procedures.”

Payments on Certificated Securities

In the event the Notes become represented by certificated securities, we will make payments on the Notes as follows. We will pay interest that is due on an interest payment date to the holder of the Notes as shown on the trustee’s records as of the close of business on the regular record date at our office in New York, New York. We will make all payments of principal and premium, if any, by check at the office of the applicable trustee in New York, New York and/or at other offices that may be specified in the indenture or a notice to holders against surrender of the Note.

Alternatively, at our option, we may pay any cash interest that becomes due on the Notes by mailing a check to the holder at his, her or its address shown on the trustee’s records as of the close of business on the regular record date or by transfer to an account at a bank in the United States, in either case, on the due date.

Payment When Offices Are Closed

If any payment is due on the Notes on a day that is not a business day, we will make the payment on the next day that is a business day. Payments made on the next business day in this situation will be treated under the indenture as if they were made on the original due date. Such payment will not result in a default under the Notes or the indenture, and no interest will accrue on the payment amount from the original due date to the next day that is a business day.

Book-entry and other indirect holders should consult their banks or brokers for information on how they will receive payments on the Notes.

Events of Default

You will have rights if an Event of Default occurs in respect of the Notes, as described later in this subsection.

The term “Event of Default” in respect of the Notes means any of the following:

•        we do not pay the principal of (or premium, if any, on) any Note when due;

•        we do not pay interest on any Note when due, and such default is not cured within 30 days;

•        we remain in breach of a covenant in respect of the Notes for 60 days after we receive a written notice of default stating we are in breach (the notice must be sent by either the trustee or holders of at least 25% of the principal amount of the Notes);

•        we file for bankruptcy or certain other events of bankruptcy, insolvency or reorganization occur and in the case of certain orders or decrees entered against us under bankruptcy law, such order or decree remains undischarged or unstayed for a period of 60 days; or

•        on the last business day of each of twenty-four consecutive calendar months, the Notes have the asset coverage, as defined in the 1940 Act, of less than 100% after giving effect to any exemptive relief granted to us by the SEC.

An Event of Default for the Notes does not necessarily constitute an Event of Default for any other series of debt securities issued under the same or any other indenture. The trustee may withhold notice to the holders of the Notes of any default, except in the payment of principal or interest, if it in good faith considers the withholding of notice to be in the best interests of the holders.

Remedies if an Event of Default Occurs

If an Event of Default has occurred and is continuing, the trustee or the holders of not less than 25% in principal amount of the Notes may declare the entire principal amount of all the Notes to be due and immediately payable. This is called a declaration of acceleration of maturity. In certain circumstances, a declaration of acceleration of maturity may be canceled by the holders of a majority in principal amount of the Notes if (1) we have deposited with the trustee all amounts due and owing with respect to the Notes (other than principal that has become due solely by reason of such acceleration) and certain other amounts, and (2) any other Events of Default have been cured or waived.

Except in cases of default, where the trustee has some special duties, the trustee is not required to take any action under the indenture at the request of any holders unless the holders offer the trustee protection from expenses and liability reasonably satisfactory to it (called an “indemnity”). If indemnity reasonably satisfactory to the trustee is provided, the holders of a majority in principal amount of the Notes may direct the time, method and place of conducting any lawsuit or other formal legal action seeking any remedy available to the trustee. The trustee may refuse to follow those directions in certain circumstances. No delay or omission in exercising any right or remedy will be treated as a waiver of that right, remedy or Event of Default.

Before you are allowed to bypass the trustee and bring your own lawsuit or other formal legal action or take other steps to enforce your rights or protect your interests relating to the Notes, the following must occur:

•        you must give the trustee written notice that an Event of Default has occurred and remains uncured;

•        the holders of at least 25% in principal amount of all the Notes must make a written request that the trustee take action because of the default and must offer indemnity, security, or both reasonably satisfactory to the trustee against the cost, expenses, and other liabilities of taking that action;

•        the trustee must not have taken action for 60 days after receipt of the above notice and offer of such indemnity and/or security; and

•        the holders of a majority in principal amount of the Notes must not have given the trustee a direction inconsistent with the above notice during that 60-day period.

However, you are entitled at any time to bring a lawsuit for the payment of money due on your Notes on or after the due date.

Book-entry and other indirect holders should consult their banks or brokers for information on how to give notice or direction to or make a request of the trustee and how to declare or cancel an acceleration of maturity.

Each year, we will furnish to the trustee a written statement of certain of our officers certifying that to their knowledge we are in compliance with the indenture and the Notes, or else specifying any default.

Waiver of Default

The holders of a majority in principal amount of the Notes may waive any past defaults other than a default in:

•        in the payment of principal or interest; or

•        in respect of a covenant that cannot be modified or amended without the consent of each holder of the Notes.

Merger or Consolidation

Under the terms of the indenture, we are generally permitted to consolidate or merge with another entity. We are also permitted to sell all or substantially all of our assets to another entity. However, we may not take any of these actions unless all the following conditions are met:

•        where we merge out of existence or convey or transfer our assets substantially as an entirety, the resulting entity must agree to be legally responsible for our obligations under the Notes;

•        the merger or sale of assets must not cause a default on the Notes and we must not already be in default (unless the merger or sale would cure the default). For purposes of this no-default test, a default would include an Event of Default that has occurred and has not been cured, as described under “Events of Default” above. A default for this purpose would also include any event that would be an Event of Default if the requirements for giving us a notice of default or our default having to exist for a specific period of time were disregarded; and

•        we must deliver certain certificates and documents to the trustee.

Modification or Waiver

There are three types of changes we can make to the indenture and the Notes issued thereunder.

Changes Requiring Your Approval

First, there are changes that we cannot make to your Notes without your specific approval. The following is a list of those types of changes:

•        change the stated maturity of the principal of or interest on the Notes;

•        reduce any amounts due on the Notes or reduce the rate of interest on the Notes;

•        reduce the amount of principal payable upon acceleration of the maturity of a Note following a default;

•        change the place or currency of payment on a Note;

•        impair your right to sue for payment;

•        reduce the percentage of holders of Notes whose consent is needed to modify or amend the indenture; and

•        reduce the percentage of holders of Notes whose consent is needed to waive compliance with certain provisions of the indenture or to waive certain defaults or reduce the percentage of holders of Notes required to satisfy quorum or voting requirements at a meeting of holders of the Notes.

Changes Not Requiring Approval

The second type of change does not require any vote by the holders of the Notes. This type is limited to clarifications and certain other changes that would not adversely affect holders of the Notes in any material respect.

Changes Requiring Majority Approval

Any other change to the indenture and the Notes would require the following approval:

•        if the change affects only the Notes, it must be approved by the holders of a majority in principal amount of the Notes; and

•        if the change affects more than one series of debt securities issued under the same indenture, it must be approved by the holders of a majority in principal amount of all of the series affected by the change, with all affected series voting together as one class for this purpose.

In each case, the required approval must be given by written consent.

The holders of a majority in principal amount of all of the series of debt securities issued under an indenture, voting together as one class for this purpose, may waive our compliance with some of our covenants in that indenture. However, we cannot obtain a waiver of a payment default or of any of the matters covered by the bullet points included above under “— Changes Requiring Your Approval.”

Further Details Concerning Voting

When taking a vote, we will use the following rules to decide how much principal to attribute to the Notes:

The Notes will not be considered outstanding, and therefore not eligible to vote, if we have deposited or set aside in trust money for their payment or redemption. The Notes will also not be eligible to vote if they have been fully defeased as described later under “— Defeasance — Full Defeasance.”

We will generally be entitled to set any day as a record date for the purpose of determining the holders of the Notes that are entitled to vote or take other action under the indenture. However, the record date may not be earlier than 30 days before the date of the first solicitation of holders to vote on or take such action and not later than the date such solicitation is completed. If we set a record date for a vote or other action to be taken by holders of the Notes, that vote or action may be taken only by persons who are holders of the Notes on the record date and must be taken within eleven months following the record date.

Book-entry and other indirect holders should consult their banks or brokers for information on how approval may be granted or denied if we seek to change the indenture or the Notes or request a waiver.

Satisfaction and Discharge

The indenture will be discharged and will cease to be of further effect with respect to the Notes when:

•        Either

•        all the Notes that have been authenticated have been delivered to the trustee for cancellation; or

•        all the Notes that have not been delivered to the trustee for cancellation:

•        have become due and payable, or

•        will become due and payable at their stated maturity within one year, or

•        are to be called for redemption within one year under arrangements satisfactory to the Trustee for the giving of notice of redemption by the Trustee in the name, and at the expense, of the Company,

and we, in the case of the first, second and third sub-bullets above, have irrevocably deposited or caused to be deposited with the trustee as trust funds in trust solely for the benefit of the holders of the Notes, in amounts in the currency payable for the Notes as will be sufficient, to pay and discharge the entire indebtedness (including all principal, premium, if any, and interest) on such Notes delivered to the trustee for cancellation (in the case of Notes that have become due and payable on or prior to the date of such deposit) or to the stated maturity or redemption date, as the case may be;

•        we have paid or caused to be paid all other sums payable by us under the indenture with respect to the Notes; and

•        we have delivered to the trustee an officers’ certificate and legal opinion, each stating that all conditions precedent provided for in the indenture relating to the satisfaction and discharge of the indenture and the Notes have been complied with.

Defeasance

The following defeasance provisions will be applicable to the Notes. “Defeasance” means that, by depositing with a trustee an amount of cash and/or government securities sufficient to pay all principal and interest, if any, on the Notes when due and satisfying any additional conditions noted below, we will be deemed to have been discharged from our obligations under the Notes. In the event of a “covenant defeasance,” upon depositing such funds and satisfying similar conditions discussed below we would be released from the restrictive covenants under the indenture relating to the Notes.

Covenant Defeasance

Under current U.S. federal tax law and the indenture, we can make the deposit described below and be released from some of the restrictive covenants in the indenture under which the Notes were issued. This is called “covenant defeasance.” In that event, you would lose the protection of those restrictive covenants but would gain the protection of having money and government securities set aside in trust to repay your Notes. The consequences to the holders of the Notes would be that, while they would no longer benefit from certain covenants under the indenture, and while the Notes could not be accelerated for any reason, the holders of the Notes nonetheless could look to the Company for repayment of the Notes if there were a shortfall in the funds deposited with the trustee or the trustee is prevented from making a payment.

In order to achieve covenant defeasance, the following must occur:

•        since the Notes are denominated in U.S. dollars, we must deposit in trust for the benefit of all holders of the Notes a combination of cash and U.S. government or U.S. government agency notes or bonds that will generate enough cash to make interest, principal and any other payments on the Notes on their various due dates;

•        we must deliver to the trustee a legal opinion of our counsel confirming that, under current U.S. federal income tax law, we may make the above deposit without causing you to be taxed on the Notes any differently than if we did not make the deposit;

•        we must deliver to the trustee a legal opinion of our counsel stating that the above deposit does not require registration by us under the 1940 Act, and a legal opinion and officers’ certificate stating that all conditions precedent to covenant defeasance have been complied with;

•        defeasance must not result in a breach or violation of, or result in a default under, the indenture or any of our other material agreements or instruments; and

•        no default or event of default with respect to the Notes shall have occurred and be continuing and no defaults or events of default related to bankruptcy, insolvency or reorganization shall occur during the next 90 days.

If we accomplish covenant defeasance, you can still look to us for repayment of the Notes if there were a shortfall in the trust deposit or the trustee is prevented from making payment. In fact, if one of the remaining Events of Default occurred (such as our bankruptcy) and the Notes became immediately due and payable, there might be a shortfall. Depending on the event causing the default, you may not be able to obtain payment of the shortfall.

Full Defeasance

If there is a change in U.S. federal tax law, as described below, we can legally release ourselves from all payment and other obligations on the Notes (called “full defeasance”) if we put in place the following other arrangements for you to be repaid:

•        since the Notes are denominated in U.S. dollars, we must deposit in trust for the benefit of all holders of the Notes a combination of money and U.S. government or U.S. government agency notes or bonds that will generate enough cash to make interest, principal and any other payments on the Notes on their various due dates;

•        we must deliver to the trustee a legal opinion confirming that there has been a change in current U.S. federal tax law or a U.S. Internal Revenue Service (“IRS”) ruling that allows us to make the above deposit without causing you to be taxed on the Notes any differently than if we did not make the deposit. Under current U.S. federal tax law the deposit and our legal release from the Notes would be treated as though we paid you your share of the cash and notes or bonds at the time the cash and notes or bonds were deposited in trust in exchange for your Notes and you would recognize gain or loss on the Notes at the time of the deposit;

•        we must deliver to the trustee a legal opinion of our counsel stating that the above deposit does not require registration by us under the 1940 Act, and a legal opinion and officers’ certificate stating that all conditions precedent to defeasance have been complied with;

•        defeasance must not result in a breach or violation of, or constitute a default under, of the indenture or any of our other material agreements or instruments; and

•        no default or event of default with respect to the Notes shall have occurred and be continuing and no defaults or events of default related to bankruptcy, insolvency or reorganization shall occur during the next 90 days.

If we ever did accomplish full defeasance, as described above, you would have to rely solely on the trust deposit for repayment of the Notes. You could not look to us for repayment in the unlikely event of any shortfall. Conversely, the trust deposit would most likely be protected from claims of our lenders and other creditors if we ever became bankrupt or insolvent.

Other Covenants

In addition to any other covenants described elsewhere in this prospectus supplement or the accompanying prospectus, the following covenants will apply to the Notes:

•        We agree that for the period of time during which the Notes are outstanding, we will not violate (whether or not we are subject thereto) Section 18(a)(1)(A) as modified by such provisions of Section 61(a) of the 1940 Act as may be applicable to us from time to time or any successor provisions, but giving effect, in either case, to any exemptive relief granted to us by the SEC. Currently, these provisions generally prohibit us from making additional borrowings, including through the issuance of additional debt securities, unless our asset coverage, as defined in the 1940 Act with respect to such borrowings, equals at least 150% after such borrowings. See “Risk Factors — Regulations governing our operation as a BDC affect our ability to, and the way in which we raise additional capital, which may expose us to risks, including the typical risks associated with leverage” in the accompanying prospectus.

•        We agree that for the period of time during which the Notes are outstanding, we will not declare any dividend (except a dividend payable in our stock), or declare any other distribution, upon a class of our capital stock, or purchase any such capital stock, unless, in every such case, at the time of the declaration of any such dividend or distribution, or at the time of any such purchase, we have an asset coverage

(as defined in the 1940 Act) of at least the threshold specified in Section 18(a)(1)(B) as modified by such provisions of Section 61(a) of the 1940 Act as may be applicable to us from time to time or any successor provisions thereto, as such obligation may be amended or superseded, after deducting the amount of such dividend, distribution or purchase price, as the case may be, and in each case giving effect to (i) any exemptive relief granted to us by the SEC, and (ii) any SEC no-action relief granted by the SEC to another BDC (or to us if we determine to seek such similar no-action or other relief) permitting the BDC to declare any cash dividend or distribution notwithstanding the prohibition contained in Section 18(a)(1)(B) as modified by such provisions of Section 61(a) of the 1940 Act as may be applicable to us from time to time or any successor provisions thereto, as such obligation may be amended or superseded, in order to maintain such BDC’s status as a RIC under Subchapter M of the Code.

•        If, at any time, we are not subject to the reporting requirements of Sections 13 or 15(d) of the Exchange Act to file any periodic reports with the SEC, we agree to furnish to holders of the Notes and the Trustee, for the period of time during which the Notes are outstanding, our audited annual consolidated financial statements, within 90 days of our fiscal year end, and unaudited interim consolidated financial statements, within 45 days of our fiscal quarter end (other than our fourth fiscal quarter). All such financial statements will be prepared, in all material respects, in accordance with applicable United States generally accepted accounting principles.

Form, Exchange and Transfer of Certificated Registered Securities

If registered Notes cease to be issued in book-entry form, they will be issued:

•        only in fully registered certificated form;

•        without interest coupons; and

•        unless we indicate otherwise, in denominations of $25 and amounts that are multiples of $25.

Holders may exchange their certificated securities for Notes of smaller denominations or combined into fewer Notes of larger denominations, as long as the total principal amount is not changed and as long as the denomination is equal to or greater than $25.

Holders may exchange or transfer their certificated securities at the office of the trustee. We have appointed the trustee to act as our agent for registering Notes in the names of holders transferring Notes. We may appoint another entity to perform these functions or perform them ourselves.

Holders will not be required to pay a service charge to transfer or exchange their certificated securities, but they may be required to pay any tax or other governmental charge associated with the transfer or exchange. The transfer or exchange will be made only if our transfer agent is satisfied with the holder’s proof of legal ownership.

We may appoint additional transfer agents or cancel the appointment of any particular transfer agent. We may also approve a change in the office through which any transfer agent acts.

If we redeem less than all the Notes, we may block the transfer or exchange of those Notes selected for redemption during the period beginning 15 days before the day we mail the notice of redemption and ending on the day of that mailing, in order to freeze the list of holders to prepare the mailing. We may also refuse to register transfers or exchanges of any certificated Notes selected for redemption, except that we will continue to permit transfers and exchanges of the unredeemed portion of any Notes that will be partially redeemed.

If a registered debt security is issued in book-entry form, only the depositary will be entitled to transfer and exchange the debt security as described in this subsection, since it will be the sole holder of the debt security.

Resignation of Trustee

The trustee may resign or be removed with respect to the Notes provided that a successor trustee is appointed to act with respect to the Notes. In the event that two or more persons are acting as trustee with respect to different series of indenture securities under the indenture, each of the trustees will be a trustee of a trust separate and apart from the trust administered by any other trustee.

Indenture Provisions — Ranking

The Notes will be our direct unsecured obligations and will rank as follows:

•        pari passu with, which means equal to, all outstanding and future unsecured unsubordinated indebtedness issued by us, including our 6.25% Unsecured Notes and our 5.50% Unsecured Notes, of which we had $24.8 million and $80.5 million outstanding, respectively, as of July 24, 2025. The Notes will also rank pari passu with, which means equal to, our general liabilities, which were approximately $16.1 million as of July 24, 2025 and which consist of trade and other payables, including temporary indebtedness of approximately $10.0 million resulting from securities purchases that have not yet settled, any outstanding dividend payable, base advisory fees payable, interest and debt fees payable, vendor payables and accrued expenses such as auditor fees, legal fees, director fees, etc.

•        senior to any of our future indebtedness that expressly provides it is subordinated to the Notes. We currently do not have outstanding debt that is subordinated to the Notes and do not currently intend to issue indebtedness that expressly provides that it is subordinated to the Notes. We do not currently anticipate issuing any subordinated indebtedness, but if we did issue such indebtedness, and it was expressly stated to be subordinated to the Notes, then the Notes will be senior to such indebtedness.

•        effectively subordinated to all of our future secured indebtedness (including indebtedness that is initially unsecured to which we subsequently grant security), to the extent of the value of the assets securing such indebtedness. In any liquidation, dissolution, bankruptcy or other similar proceeding, the holders of any of our future secured indebtedness may assert rights against the assets pledged to secure that indebtedness in order to receive full payment of their indebtedness before the assets may be used to pay other creditors, including the holders of the Notes, and any assets of our subsidiaries will not be directly available to satisfy the claims of our creditors, including holders of the Notes. Currently, we do not have any secured indebtedness at the Oxford Square Capital Corp. level.

•        structurally subordinated to all future indebtedness and other obligations of any of the Company’s future subsidiaries and financing vehicles, since the Notes are obligations exclusively of Oxford Square Capital Corp. and not of any of our future subsidiaries. Structural subordination means that creditors of a parent entity are subordinate to creditors of a subsidiary entity with respect to the subsidiary’s assets.

Book-Entry Procedures

The Notes will be represented by global securities that will be deposited and registered in the name of DTC or its nominee. This means that, except in limited circumstances, you will not receive certificates for the Notes.

Beneficial interests in the Notes will be represented through book-entry accounts of financial institutions acting on behalf of beneficial owners as direct and indirect participants in DTC. Investors may elect to hold interests in the Notes through either DTC, if they are a participant, or indirectly through organizations that are participants in DTC.

The Notes will be issued as fully registered securities registered in the name of Cede & Co. (DTC’s partnership nominee) or such other name as may be requested by an authorized representative of DTC. One fully-registered certificate will be issued for each issuance of the Notes, in the aggregate principal amount of such issue, and will be deposited with DTC. Interests in the Notes will trade in DTC’s Same Day Funds Settlement System, and any permitted secondary market trading activity in such Notes will, therefore, be required by DTC to be settled in immediately available funds. None of the Company, the Trustee or the Paying Agent will have any responsibility for the performance by DTC or its participants or indirect participants of their respective obligations under the rules and procedures governing their operations.

DTC is a limited-purpose trust company organized under the New York Banking Law, a “banking organization” within the meaning of the New York Banking Law, a member of the Federal Reserve System, a “clearing corporation” within the meaning of the New York Uniform Commercial Code, and a “clearing agency” registered pursuant to the provisions of Section 17A of the Exchange Act. DTC holds and provides asset servicing for over 3.5 million issues of U.S. and non-U.S. equity, corporate and municipal debt issues, and money market instruments from over 100 countries that DTC’s participants (“Direct Participants”) deposit with DTC. DTC also facilitates the post-trade settlement among Direct Participants of sales and other securities transactions in deposited securities through electronic computerized book-entry transfers and pledges between Direct Participants’ accounts. This eliminates the need for physical movement of securities certificates. Direct Participants include both U.S. and non-U.S. securities brokers and dealers, banks, trust companies, clearing corporations, and certain other organizations. DTC is a wholly owned subsidiary of The Depository Trust & Clearing Corporation (“DTCC”).

DTCC is the holding company for DTC, National Securities Clearing Corporation and Fixed Income Clearing Corporation, all of which are registered clearing agencies. DTCC is owned by the users of its regulated subsidiaries. Access to the DTC system is also available to others such as both U.S. and non-U.S. securities brokers and dealers, banks, trust companies and clearing corporations that clear through or maintain a custodial relationship with a Direct Participant, either directly or indirectly (“Indirect Participants”). DTC has Standard & Poor’s Ratings Services’ highest rating: AAA. The DTC Rules applicable to its participants are on file with the SEC. More information about DTC can be found at www.dtcc.com and www.dtc.org.

Purchases of the Notes under the DTC system must be made by or through Direct Participants, which will receive a credit for the Notes on DTC’s records. The ownership interest of each actual purchaser of each security, or the “Beneficial Owner,” is in turn to be recorded on the Direct and Indirect Participants’ records. Beneficial Owners will not receive written confirmation from DTC of their purchase. Beneficial Owners are, however, expected to receive written confirmations providing details of the transaction, as well as periodic statements of their holdings, from the Direct or Indirect Participant through which the Beneficial Owner entered into the transaction. Transfers of ownership interests in the Notes are to be accomplished by entries made on the books of Direct and Indirect Participants acting on behalf of Beneficial Owners. Beneficial Owners will not receive certificates representing their ownership interests in the Notes, except in the event that use of the book-entry system for the Notes is discontinued.

To facilitate subsequent transfers, all Notes deposited by Direct Participants with DTC are registered in the name of DTC’s partnership nominee, Cede & Co. or such other name as may be requested by an authorized representative of DTC. The deposit of the Notes with DTC and their registration in the name of Cede & Co. or such other DTC nominee do not effect any change in beneficial ownership. DTC has no knowledge of the actual Beneficial Owners of the Notes; DTC’s records reflect only the identity of the Direct Participants to whose accounts the Notes are credited, which may or may not be the Beneficial Owners. The Direct and Indirect Participants will remain responsible for keeping account of their holdings on behalf of their customers.

Conveyance of notices and other communications by DTC to Direct Participants, by Direct Participants to Indirect Participants, and by Direct Participants and Indirect Participants to Beneficial Owners will be governed by arrangements among them, subject to any statutory or regulatory requirements as may be in effect from time to time.

Redemption notices shall be sent to DTC. If less than all of the Notes within an issue are being redeemed, DTC’s practice is to determine by lot the amount of the interest of each Direct Participant in such issue to be redeemed.

Redemption proceeds, distributions, and interest payments on the Notes will be made to Cede & Co., or such other nominee as may be requested by an authorized representative of DTC. DTC’s practice is to credit Direct Participants’ accounts upon DTC’s receipt of funds and corresponding detail information from us or the Trustee on the payment date in accordance with their respective holdings shown on DTC’s records. Payments by Participants to Beneficial Owners will be governed by standing instructions and customary practices, as is the case with securities held for the accounts of customers in bearer form or registered in “street name,” and will be the responsibility of such Participant and not of DTC nor its nominee, the Trustee, or us, subject to any statutory or regulatory requirements as may be in effect from time to time. Payment of redemption proceeds, distributions, and interest payments to Cede & Co. (or such other nominee as may be requested by an authorized representative of DTC) is the responsibility of us or the Trustee, but disbursement of such payments to Direct Participants will be the responsibility of DTC, and disbursement of such payments to the Beneficial Owners will be the responsibility of Direct and Indirect Participants.

DTC may discontinue providing its services as securities depository with respect to the Notes at any time by giving reasonable notice to us or to the Trustee. Under such circumstances, in the event that a successor securities depository is not obtained, certificates are required to be printed and delivered. We may decide to discontinue use of the system of book-entry-only transfers through DTC (or a successor securities depository). In that event, certificates will be printed and delivered to DTC.

The information in this section concerning DTC and DTC’s book-entry system has been obtained from sources that we believe to be reliable, but we take no responsibility for the accuracy thereof.

ADDITIONAL U.S. FEDERAL INCOME TAX CONSIDERATIONS

The following discussion is a general summary of certain U.S. federal income tax considerations (and, in the case of a non-U.S. holder (as defined below), certain U.S. federal estate tax consequences) applicable to an investment in the Notes. This summary does not purport to be a complete description of the income and estate tax considerations applicable to such an investment. The discussion is based upon the Internal Revenue Code of 1986, as amended (the “Code”), Treasury Regulations, and administrative and judicial interpretations, each as of the date of this prospectus and all of which are subject to change, potentially with retroactive effect. You should consult your own tax advisor with respect to tax considerations that pertain to your purchase, ownership and disposition of our Notes.

This discussion deals only with Notes held as capital assets within the meaning of Section 1221 of the Code (generally, property held for investment) and does not purport to deal with persons in special tax situations, such as financial institutions, insurance companies, controlled foreign corporations, passive foreign investment companies and regulated investment companies (and shareholders of such corporations), dealers in securities or currencies, traders in securities, former citizens of the United States, persons holding the Notes as a hedge against currency risks or as a position in a “straddle,” “hedge,” “constructive sale transaction” or “conversion transaction” for tax purposes, entities that are tax-exempt for U.S. federal income tax purposes, retirement plans, individual retirement accounts, tax-deferred accounts, persons subject to the alternative minimum tax, pass-through entities (including partnerships and entities and arrangements classified as partnerships for U.S. federal income tax purposes) and beneficial owners of pass-through entities, or persons whose functional currency is not the U.S. dollar. It does not deal with beneficial owners of the Notes other than original purchasers of the Notes who acquire the Notes in this offering for a price equal to their original issue price (i.e., the first price at which a substantial amount of the Notes is sold other than to bond houses, brokers, or similar persons or organizations acting in the capacity of underwriters, placement agents or wholesalers). It also does not address the U.S. federal income tax consequences to beneficial owners of the Notes subject to the special tax accounting rules under Section 451(b) of the Code. In addition, this summary only addresses U.S. federal income tax consequences, and, except as otherwise noted below, does not address any U.S. state or local or non-U.S. tax consequences. If you are considering purchasing the Notes, you should consult your own tax advisor concerning the application of the U.S. federal tax laws to you in light of your particular situation, as well as any consequences to you of purchasing, owning and disposing of the Notes under the laws of any other taxing jurisdiction.

For purposes of this discussion, the term “U.S. holder” means a beneficial owner of a Note that is, for U.S. federal income tax purposes, (i) an individual citizen or resident of the United States, (ii) a corporation or other entity treated as a corporation for U.S. federal income tax purposes, created or organized in or under the laws of the United States or any State thereof or the District of Columbia, (iii) a trust (a) subject to the control of one or more U.S. persons and the primary supervision of a court in the United States, or (b) that existed on August 20, 1996 and has made a valid election (under applicable Treasury Regulations) to be treated as a domestic trust, or (iv) an estate the income of which is subject to U.S. federal income taxation regardless of its source. The term “non-U.S. holder” means a beneficial owner of a Note that is neither a U.S. holder nor a partnership (including an entity or arrangement treated as a partnership for U.S. federal income tax purposes). An individual may, subject to exceptions, be deemed to be a resident alien, as opposed to a non-resident alien, by, among other ways, being present in the United States (i) on at least 31 days in the calendar year, and (ii) for an aggregate of at least 183 days during a three-year period ending in the current calendar year, counting for such purposes all of the days present in the current year, one-third of the days present in the immediately preceding year, and one-sixth of the days present in the second preceding year. Resident aliens are subject to U.S. federal income tax as if they were U.S. citizens.

If a partnership (including an entity or arrangement treated as a partnership for U.S. federal income tax purposes) holds any Notes, the U.S. federal income tax treatment of a partner of the partnership generally will depend upon the status of the partner, the activities of the partnership and certain determinations made at the partner level. Partners of partnerships holding Notes should consult their own tax advisors.

Taxation of Note Holders

Under present law, we expect that the Notes will constitute indebtedness of us for U.S. federal income tax purposes, which the below discussion assumes. We intend to treat all payments made with respect to the Notes consistent with this characterization.

Taxation of U.S. Holders.    Payments or accruals of interest on a Note generally will be taxable to a U.S. holder as ordinary interest income at the time they are received (actually or constructively) or accrued, in accordance with the U.S. holder’s regular method of tax accounting. In general, if the terms of a debt instrument entitle a holder to receive payments (other than fixed periodic interest) that exceed the issue price of the instrument by more than a statutory de minimis amount, the holder will be required to recognize additional interest as “original issue discount” over the term of the instrument, irrespective of the holder’s regular method of tax accounting. We expect that the Notes will not be issued with original issue discount for U.S. federal income tax purposes.

Upon the sale, exchange, redemption, retirement or other taxable disposition of a Note, a U.S. holder generally will recognize capital gain or loss equal to the difference between the amount realized on the sale, exchange, redemption, retirement or other taxable disposition (excluding amounts representing accrued and unpaid interest, which are treated as ordinary income to the extent not previously included in income) and the U.S. holder’s adjusted tax basis in the Note. A U.S. holder’s adjusted tax basis in a Note generally will equal the U.S. holder’s initial investment in the Note. Capital gain or loss generally will be long-term capital gain or loss if the Note was held for more than one year. Long-term capital gains recognized by certain non-corporate U.S. holders (including individuals) generally are eligible for reduced rates of taxation. The distinction between capital gain or loss and ordinary income or loss is also important in other contexts; for example, for purposes of the limitations on a U.S. holder’s ability to offset capital losses against ordinary income.

Unearned Income Medicare Contribution.    A tax of 3.8% will be imposed on certain “net investment income” (or “undistributed net investment income”, in the case of estates and trusts) received by taxpayers other than corporations with adjusted gross income above certain threshold amounts. “Net investment income” as defined for U.S. federal Medicare contribution purposes generally includes interest payments and gain recognized from the sale, exchange, redemption, retirement or other taxable disposition of the Notes. Tax-exempt trusts, which are not subject to income taxes generally, and foreign individuals will not be subject to this tax. U.S. holders should consult their own tax advisors regarding the effect, if any, of this tax on their ownership and disposition of the Notes.

Taxation of Non-U.S. Holders.    A non-U.S. holder generally will not be subject to 30% U.S. withholding tax on payments of interest on a Note provided that (i) the non-U.S. holder is not a controlled foreign corporation related to the Company through stock ownership, (ii) the non-U.S. holder is not a bank receiving interest described in Section 881(c)(3)(A) of the Code, (iii) the non-U.S. holder does not own (directly or indirectly, actually or constructively) 10% or more of the total combined voting power of all classes of voting stock of the Company, and (iv) the non-U.S. holder has provided a statement, prior to payment, in the year in which a payment occurs or in the preceding 3 years, on an IRS Form W-8BEN, Form W-8BEN-E, or other applicable form signed under penalties of perjury that includes its name and address and certifies that the non-U.S. holder is the beneficial owner and is not a U.S. person in compliance with applicable requirements, or satisfies documentary evidence requirements for establishing that it is not a U.S. person. These forms may be required to be periodically updated.

A non-U.S. holder that is not exempt from tax under these rules generally will be subject to 30% U.S. withholding tax on payments of interest unless (i) the income is effectively connected with the conduct of a U.S. trade or business (and, under certain income tax treaties, is attributable to a permanent establishment maintained in the United States by the non-U.S. holder), so long as the non-U.S. holder has provided, prior to payment of such interest, an IRS Form W-8ECI or substantially similar substitute form stating that the interest on the Notes is effectively connected with the non-U.S. holder’s conduct of a trade or business in the United States in which case the interest will be subject to U.S. federal income tax on a net income basis as applicable to U.S. holders generally (unless an applicable income tax treaty provides otherwise), or (ii) an applicable income tax treaty provides for a lower rate of, or exemption from, withholding tax, so long as the non-U.S. holder has provided, prior to payment of such interest, an IRS Form W-8BEN, IRS Form W-BEN-E, or other applicable form establishing such reduction, or exemption from, withholding tax pursuant to such income tax treaty.

In the case of a non-U.S. holder that is a corporation and that receives income that is effectively connected with the conduct of a U.S. trade or business, such income may also be subject to a branch profits tax (which is generally imposed on a non-U.S. corporation on the actual or deemed repatriation from the United States of earnings and profits attributable to a U.S. trade or business) at a 30% rate. The branch profits tax may not apply (or may apply at a reduced rate) if the non-U.S. holder is a qualified resident of a country with which the United States has an income tax treaty.

To claim the benefit of an income tax treaty or to claim exemption from withholding because income is effectively connected with a U.S. trade or business, the non-U.S. holder must timely provide the appropriate, properly executed IRS forms. The non-U.S. holder must inform the recipient of any changes on these forms within 30 days of such change. These forms may be required to be periodically updated. Also, a non-U.S. holder who is claiming the benefits of a treaty may be required to obtain a United States taxpayer identification number and to provide certain documentary evidence issued by foreign governmental authorities to prove residence in the foreign country.

Generally, a non-U.S. holder will not be subject to U.S. federal income or withholding taxes on any amount that constitutes capital gain upon the sale, exchange, redemption, retirement or other taxable disposition of a Note, provided that (i) the gain is not effectively connected with the conduct of a trade or business in the United States by the non-U.S. holder (or, if required by an applicable income tax treaty, is not attributable to a permanent establishment maintained in the United States by the non-U.S. holder) and (ii) the non-U.S. holder is not an individual who is present in the United States for 183 days or more in the taxable year of the sale, exchange, redemption, retirement or other taxable disposition and meets certain other conditions (unless such holder is eligible for relief under an applicable income tax treaty). Certain other exceptions may be applicable, and a non-U.S. holder should consult its tax advisor in this regard.

A Note that is held by an individual who, at the time of death, is not a citizen or resident of the United States (as specially defined for U.S. federal estate tax purposes) generally will not be subject to the U.S. federal estate tax, unless, at the time of death, (i) such individual directly or indirectly, actually or constructively, owns 10% or more of the total combined voting power of all classes of our stock entitled to vote within the meaning of Section 871(h)(3) of the Code or (ii) such individual’s interest in the Notes is effectively connected with the individual’s conduct of a U.S. trade or business.

Information Reporting and Backup Withholding.    A U.S. holder (other than an “exempt recipient,” including a corporation and certain other persons who, when required, demonstrate their exempt status) may be subject to backup withholding on, and to information reporting requirements with respect to, payments of principal and interest on, and proceeds from the sale, exchange, redemption, retirement or other taxable disposition of the Notes. In general, if a non-corporate U.S. holder subject to information reporting fails to furnish a correct taxpayer identification number or otherwise fails to comply with applicable backup withholding requirements, backup withholding at the applicable rate (currently 24%) may apply.

The amount of interest we pay to a non-U.S. holder on the Notes will be reported to such non-U.S. Holder and to the IRS annually on an IRS Form 1042-S even if the non-U.S. holder is exempt from the 30% withholding tax described above. Copies of the information returns reporting those payments and the amounts withheld, if any, may also be made available to the tax authorities in the country where the non-U.S. holder is resident under provisions of an applicable income tax treaty or agreement.

In addition, backup withholding tax and certain other information reporting requirements apply to payments of principal and interest on, and proceeds from the sale, exchange, redemption, retirement or other taxable disposition of the Notes, unless an exemption applies. Backup withholding and information reporting will not apply to payments we make to a non-U.S. holder if such non-U.S. holder has provided to the applicable withholding agent under penalties of perjury the required certification of their non-U.S. person status as discussed above (and the applicable withholding agent does not have actual knowledge or reason to know that they are a U.S. person) or if the non-U.S. holder is an exempt recipient.

If a non-U.S. holder sells or redeems a Note through a U.S. broker or the U.S. office of a foreign broker, the proceeds from such sale or redemption will be subject to information reporting and backup withholding unless such non-U.S. holder provides a withholding certificate or other appropriate documentary evidence establishing that such non-U.S. holder is not a U.S. person to the broker and such broker does not have actual knowledge or reason to know that such non-U.S. holder is a U.S. person, or the non-U.S. holder is an exempt recipient eligible for an exemption from information reporting and backup withholding. If a non-U.S. holder sells or redeems a note through the foreign office of a broker who is a U.S. person or has certain enumerated connections with the United States, the proceeds from such sale or redemption will be subject to information reporting unless the non-U.S. holder provides to such broker a withholding certificate or other appropriate documentary evidence establishing that the non-U.S. holder is not a U.S. person and such broker does not have actual knowledge or reason to know that such evidence is false, or the

non-U.S. holder is an exempt recipient eligible for an exemption from information reporting. In circumstances where information reporting by the foreign office of such a broker is required, backup withholding will be required only if the broker has actual knowledge that the non-U.S. holder is a U.S. person.

You should consult your tax advisor regarding the qualification for an exemption from backup withholding and information reporting and the procedures for obtaining such an exemption, if applicable. Any amounts withheld under the backup withholding rules from a payment to a beneficial owner generally would be allowed as a refund or a credit against such beneficial owner’s U.S. federal income tax provided the required information is timely furnished to the IRS.

Tax Shelter Reporting Regulations.    Under applicable U.S. Treasury Regulations, if a U.S. holder recognizes a loss with respect to the Notes of $2 million or more for a non-corporate U.S. holder or $10 million or more for a corporate U.S. holder in any single taxable year (or a greater loss over a combination of taxable years), the U.S. holder may be required to file with the IRS a disclosure statement on IRS Form 8886. Direct U.S. owners of portfolio securities are in many cases excepted from this reporting requirement, but, under current guidance, U.S. holders of securities issued by a RIC are not exempt from such reporting. Future guidance may extend the current exception from this reporting requirement to U.S. holders of securities issued by most or all RICs. The fact that a loss is reportable under these U.S. Treasury Regulations does not affect the legal determination of whether a taxpayer’s treatment of the loss is proper. Significant monetary penalties apply to a failure to comply with this reporting requirement. States may also have a similar reporting requirement. U.S. holders of the Notes should consult their own tax advisors to determine the applicability of these U.S. Treasury Regulations in light of their individual circumstances.

Foreign Account Tax Compliance Act

Legislation commonly referred to as the “Foreign Account Tax Compliance Act,” or “FATCA,” generally imposes a 30% withholding tax on payments of certain types of income to foreign financial institutions (“FFIs”) unless such FFIs either (i) enter into an agreement with the U.S. Treasury to report certain required information with respect to accounts held by U.S. persons (or held by foreign entities that have U.S. persons as substantial owners) or (ii) reside in a jurisdiction that has entered into an intergovernmental agreement (“IGA”) with the United States to collect and share such information and are in compliance with the terms of such IGA and any enabling legislation or regulations. The types of income subject to the tax include U.S. source interest and dividends. While withholding under FATCA would have also been required on payments of the gross proceeds from the sale of any property, that could produce U.S.-source interest or dividends, such as the Notes, the U.S. Treasury department has indicated its intent to eliminate this requirement in proposed regulations, which state that taxpayers may rely on the proposed regulations until final regulations are issued. The information required to be reported includes the identity and taxpayer identification number of each account holder that is a U.S. person and transaction activity within the holder’s account. In addition, subject to certain exceptions, this legislation also imposes a 30% withholding on payments to foreign entities that are not FFIs unless the foreign entity certifies that it does not have a greater than 10% U.S. owner or provides the withholding agent with identifying information on each greater than 10% U.S. owner. Depending on the status of a non-U.S. holder and the status of the intermediaries through which they hold the Notes, non-U.S. holders could be subject to this 30% withholding tax with respect to interest paid on the Notes. Under certain circumstances, a non-U.S. holder might be eligible for refunds or credits of such taxes.

You should consult your own tax advisor with respect to the particular tax consequences to you of an investment in the Notes, including the possible effect of any pending legislation or proposed regulations.

UNDERWRITING

Lucid is acting as representative of the underwriters named below. Subject to the terms and conditions stated in the underwriting agreement dated            , 2025, each underwriter named below has agreed to purchase, and we have agreed to sell to that underwriter, the aggregate principal amount of Notes set forth opposite the underwriter’s name.

The underwriting agreement provides that the obligations of the underwriters to purchase the Notes included in this offering are subject to approval of legal matters by counsel and to other conditions. The underwriters are obligated to purchase all the Notes (other than those covered by the overallotment option described below) if they purchase any of the Notes.

The underwriters have agreed to purchase the Notes from us at            % of the aggregate principal amount of the Notes, which will result in aggregate proceeds to us of $            , assuming no exercise of the underwriters’ overallotment option, and $            , assuming full exercise of the underwriters’ overallotment option, in each case, before deducting expenses payable to us.

The underwriters propose to offer the Notes for sale, from time to time, in one or more negotiated transactions, at prices that may be different than par. These sales may occur at market prices prevailing at the time of sale, at prices related to such prevailing market prices or at prices negotiated by the joint book-running managers or with approval from the joint book-running managers.

The underwriters hold an option, exercisable for 30 days from the date of this prospectus, to purchase up to an additional $            million aggregate principal amount of the Notes at the public offering price less the underwriting discount. The underwriters may exercise the option solely for the purpose of covering overallotments, if any, in connection with this offering. To the extent such option is exercised, each underwriter must purchase a number of additional Notes approximately proportionate to that underwriter’s initial purchase commitment.

We have agreed that, for a period of 90 days from the date of this prospectus supplement, we will not, without the prior written consent of Lucid, on behalf of the underwriters, offer, pledge, sell, contract to sell or otherwise dispose of or agree to sell or otherwise dispose of, directly or indirectly or hedge any debt securities issued or guaranteed by us or any securities convertible into or exercisable or exchangeable for debt securities issued or guaranteed by us or file any registration statement under the Securities Act with respect to any of the foregoing. Lucid in its sole discretion may release any of the securities subject to these lock-up agreements at any time without notice.

The 90-day period in the preceding paragraph will be extended if (i) during the last 17 days of the 90-day period we issue an earnings release or material news or a material event relating to us occurs or (ii) prior to the expiration of the 90-day period, we announce that we will release earnings results during the 16-day period beginning on the last day of the 90-day period, in which case the restrictions described in the preceding sentence will continue to apply until the expiration of the 18-day period beginning on the issuance of the earnings release or the announcement of the material news or the occurrence of the material event.

Per the underwriting agreement, we have agreed to use commercially reasonable efforts to maintain a credit rating on the Notes by an NRSRO whose status has been confirmed by the Securities Valuation Office of the National Association of Insurance Commissioners, provided that no minimum rating will be required. Lucid, as representative, at its sole discretion, may waive the requirement to maintain a rating at any time.

We intend to list the Notes on the NASDAQ Global Select Market. We expect trading in the Notes on the NASDAQ Global Select Market to begin within 30 days after the original issue date under the trading symbol “            .” We offer no assurances that an active trading market for the Notes will develop and continue after the offering.

The following table shows the public offering price, the underwriting discounts and commissions to be paid to the underwriters and the proceeds, before expenses, to us in connection with this offering. These amounts are shown assuming both no exercise and full exercise of the underwriters’ option to purchase additional Notes.

____________

(1)      The expenses associated with the offering, including the underwriting discount, are paid by us and are ultimately borne by our shareholders.

We estimate expenses payable by us in connection with this offering, other than the underwriting discounts and commissions referred to above, will be approximately $            .

We and our investment adviser have each agreed to indemnify the underwriters against certain liabilities, including liabilities under the Securities Act, or to contribute to payments the underwriters may be required to make because of any of those liabilities.

Certain underwriters may make a market in the Notes. No underwriter is, however, obligated to conduct market-making activities and any such activities may be discontinued at any time without notice, at the sole discretion of the underwriter. No assurance can be given as to the liquidity of, or the trading market for, the Notes as a result of any market-making activities undertaken by any underwriter. This prospectus supplement and the accompanying prospectus is to be used by any underwriter in connection with the offering and, during the period in which a prospectus must be delivered, with offers and sales of the Notes in market-making transactions in the over-the-counter market at negotiated prices related to prevailing market prices at the time of the sale.

In connection with the offering, Lucid, on behalf of the underwriters, may purchase and sell Notes in the open market. These transactions may include short sales, syndicate covering transactions and stabilizing transactions. Short sales involve syndicate sales of Notes in excess of the number of Notes to be purchased by the underwriters in the offering, which creates a syndicate short position. “Covered” short sales are sales of Notes made in an amount up to the number of Notes represented by the underwriters’ overallotment option. In determining the source of Notes to close out the covered syndicate short position, the underwriters will consider, among other things, the price of Notes available for purchase in the open market as compared to the price at which they may purchase Notes through the overallotment option. Transactions to close out the covered syndicate short position involve either purchases of Notes in the open market after the distribution has been completed or the exercise of the overallotment option. The underwriters may also make “naked” short sales of Notes in excess of the overallotment option. The underwriters must close out any naked short position by purchasing Notes in the open market. A naked short position is more likely to be created if the underwriters are concerned that there may be downward pressure on the price of Notes in the open market after pricing that could adversely affect investors who purchase in the offering. Stabilizing transactions consist of bids for or purchases of Notes in the open market while the offering is in progress.

The underwriters also may impose a penalty bid. Penalty bids permit the underwriters to reclaim a selling concession from a syndicate member when Lucid repurchases Notes originally sold by that syndicate member in order to cover syndicate short positions or make stabilizing purchases.

Any of these activities may have the effect of preventing or retarding a decline in the market price of Notes. They may also cause the price of Notes to be higher than the price that would otherwise exist in the open market in the absence of these transactions. The underwriters may conduct these transactions on the NASDAQ Global Select Market, or in the over-the-counter market, or otherwise. Trading is expected to commence on the NASDAQ Global Select Market within 30 days after the date of initial delivery of the Notes. If the underwriters commence any of these transactions, they may discontinue them at any time.

A prospectus in electronic format may be made available on the websites maintained by one or more of the underwriters. The representative may agree to allocate a number of Notes to underwriters for sale to their online brokerage account holders. The representative will allocate Notes to underwriters that may make Internet distributions on the same basis as other allocations. In addition, Notes may be sold by the underwriters to securities dealers who resell Notes to online brokerage account holders.

We anticipate that, from time to time, certain underwriters may act as brokers or dealers in connection with the execution of our portfolio transactions after they have ceased to be underwriters and, subject to certain restrictions, may act as brokers while they are underwriters.

Certain underwriters may have performed investment banking and advisory services for us, our investment adviser and our affiliates from time to time, for which they have received customary fees and expenses. Certain underwriters may, from time to time, engage in transactions with or perform services for us, our investment adviser and our affiliates in the ordinary course of business.

Lucid and its affiliates are full service financial institutions engaged in various activities, which may include securities trading, commercial and investment banking, financial advisory, investment management, investment research, principal investment, hedging, financing and brokerage activities. Lucid and its affiliates may in the future perform, various financial advisory and investment banking services for us, for which they will receive customary fees and reimbursement of expenses, including acting as underwriters for our securities offerings. In the ordinary course of its various business activities, Lucid and its affiliates may make or hold a broad array of investments and actively trade debt and equity securities (or related derivative securities) and financial instruments (including bank loans) for its own account and for the accounts of its customers and such investment and securities activities may involve securities and/or instruments of our company. Lucid and its affiliates may also make investment recommendations and/or publish or express independent research views in respect of such securities or instruments and may at any time hold, or recommend to clients that they acquire, long and/or short positions in such securities and instruments.

The principal business address of Lucid Capital Markets, LLC is 570 Lexington Avenue, 40th Floor, New York, New York 10022.

Settlement

We expect that delivery of the Notes will be made against payment therefor on or about            , 2025, which will be the fourth business day following the date of the pricing of the Notes. Under Rule 15c6-1 under the Exchange Act, trades in the secondary market generally are required to settle in one business day, unless the parties to any such trade expressly agree otherwise. Accordingly, purchasers who wish to trade the Notes prior to the business day before the delivery of the Notes will be required, by virtue of the fact that the Notes initially settle in T+ 4 business days, to specify an alternate settlement arrangement at the time of any such trade to prevent a failed settlement and should consult their own advisors.

Potential Conflicts of Interest

On August 1, 2019, we entered into an equity distribution agreement through which we may offer for sale, from time to time, up to $150.0 million of our common stock through an at-the-market offering. On August 16, 2024, the equity distribution agreement was amended and restated and Lucid was appointed as an agent under the agreement. From August 16, 2024 to July 24, 2025, we sold a total of 12,139,212 shares of common stock pursuant to the at-the-market offering. The total amount of capital raised as a result of these sales of common stock was approximately $32.2 million and net proceeds were approximately $31.8 million, after deducting the sales agents’ commissions and offering expenses.

Other Jurisdictions

The Notes offered by this prospectus may not be offered or sold, directly or indirectly, nor may this prospectus or any other offering material or advertisements in connection with the offer and sale of any such Notes be distributed or published in any jurisdiction, except under circumstances that will result in compliance with the applicable rules and regulations of that jurisdiction. Persons into whose possession this prospectus comes are advised to inform themselves about and to observe any restriction relating to the offering and the distribution of this prospectus. This prospectus does not constitute an offer to sell or a solicitation of an offer to buy the Notes offered by this prospectus supplement in any jurisdiction in which such an offer or a solicitation is unlawful.

LEGAL MATTERS

Certain legal matters regarding the Notes offered by this prospectus supplement will be passed upon for us by Dechert LLP, Washington, D.C. Certain legal matters in connection with this offering will be passed upon for the underwriters by Blank Rome LLP, New York, New York.

EXPERTS

The financial statements incorporated in this prospectus, by reference to the Annual Report on Form 10-K for the year ended December 31, 2024 have been so incorporated in reliance on the report of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.

AVAILABLE INFORMATION

We have filed with the SEC a registration statement on Form N-2 together with all amendments and related exhibits under the Securities Act. The registration statement contains additional information about us and the securities being offered by this prospectus supplement and the accompanying prospectus.

We file annual, quarterly and current reports, proxy statements and other information with the SEC under the Exchange Act. The information we file with the SEC is available free of charge by contacting us at 8 Sound Shore Drive, Suite 255, Greenwich, CT 06830 or by telephone at (203) 983-5275 or on our website at www.oxfordsquarecapital.com. The SEC also maintains a website that contains reports, proxy statements and other information regarding registrants, including us, that file such information electronically with the SEC. The address of the SEC’s website is http://www.sec.gov. Information contained on our website or on the SEC’s website about us is not incorporated into this prospectus supplement and the accompanying prospectus and you should not consider information contained on our website or on the SEC’s website to be part of this prospectus supplement and the accompanying prospectus.

PROSPECTUS

$464,406,568

Oxford Square Capital Corp.

Common Stock

_______________________________________

We operate as a closed-end management investment company and have elected to be regulated as a business development company, or “BDC,” under the Investment Company Act of 1940, as amended, or the “1940 Act.” Our investment objective is to maximize our portfolio’s total return. Our primary current focus is to seek an attractive risk-adjusted total return by investing primarily in corporate debt securities and collateralized loan obligation (“CLO”) structured finance investments that own corporate debt securities. CLO investments may also include warehouse facilities, which are financing structures intended to aggregate loans that may be used to form the basis of a traditional CLO vehicle. We may also invest in publicly traded debt and/or equity securities. The portfolio companies in which we invest, however, will generally be considered below investment grade, and their debt securities may in turn be referred to as “junk.” A portion of our investment portfolio may consist of debt investments for which issuers are not required to make significant principal payments until the maturity of the senior loans, which could result in a substantial loss to us if such issuers are unable to refinance or repay their debt at maturity. In addition, many of the debt securities we hold typically contain interest reset provisions that may make it more difficult for a borrower to repay the loan, heightening the risk that we may lose all or part of our investment. The CLO vehicles in which we invest are formed by raising various classes or “tranches” of debt (with the most senior tranches being rated “AAA” to the most junior tranches typically being rated “BB” or “B”) and equity. The tranches of CLO vehicles rated “BB” or “B” may be referred to as “junk.” The equity of a CLO vehicle, which is the most common tranche of a CLO vehicle in which we invest, is generally required to absorb the CLO’s losses before any of the CLO’s other tranches, yet it also has the lowest level of payment priority among the CLO’s tranches; therefore, the equity is typically the riskiest of CLO investments which, if it were rated, may also be referred to as “junk.”

We may offer, from time to time, in one or more offerings or series, up to $464,406,568 of our common stock, preferred stock, debt securities, subscription rights to purchase shares of our common stock, or warrants representing rights to purchase shares of our common stock, preferred stock or debt securities, which we refer to, collectively, as our “securities.” The preferred stock, subscription rights, warrants and debt securities offered hereby may be convertible or exchangeable into shares of our common stock. The securities may be offered at prices and on terms to be described in one or more supplements to this prospectus.

In the event we offer common stock, the offering price per share of our common stock less any underwriting discounts or commissions will generally not be less than the net asset value per share of our common stock at the time we make the offering. However, we may issue shares of our common stock pursuant to this prospectus at a price per share that is less than our net asset value per share (i) in connection with a rights offering to our existing stockholders, (ii) with the prior approval of the majority of our common stockholders or (iii) under such other circumstances as the Securities and Exchange Commission, or the “SEC,” may permit.

Our securities may be offered directly to one or more purchasers, or through agents designated from time to time by us, or to or through underwriters or dealers. Each prospectus supplement relating to an offering will identify any agents or underwriters involved in the sale of our securities, and will disclose any applicable purchase price, fee, discount or commissions arrangement between us and our agents or underwriters or among our underwriters or the basis upon which such amount may be calculated. See “Plan of Distribution.” We may not sell any of our securities through agents, underwriters or dealers without delivery of this prospectus and a prospectus supplement describing the method and terms of the offering of such securities.

Our common stock is traded on the Nasdaq Global Select Market under the symbol “OXSQ.” On September 14, 2022, the last reported sales price on the Nasdaq Global Select Market for our common stock was $3.73 per share. On June 30, 2022, our net asset value was $3.67 per share.

Our 6.50% Unsecured Notes due 2024 (the “6.50% Unsecured Notes”) are currently listed on the NASDAQ Global Select Market under the symbol “OXSQL”. The reported closing price for our 6.50% Unsecured Notes on September 14, 2022 was $24.99 per note.

Our 6.25% Unsecured Notes due 2026 (the “6.25% Unsecured Notes”) are currently listed on the NASDAQ Global Select Market under the symbol “OXSQZ”. The reported closing price for our 6.25% Unsecured Notes on September 14, 2022 was $24.55 per note.

Our 5.50% Unsecured Notes due 2028 (the “5.50% Unsecured Notes”) are currently listed on the NASDAQ Global Select Market under the symbol “OXSQG”. The reported closing price for our 5.50% Unsecured Notes on September 14, 2022 was $23.10 per note.

Investing in our securities involves a high degree of risk, including credit risk, the risk of the use of leverage and the risk of dilution, and is highly speculative. In addition, shares of closed-end investment companies, including BDCs, frequently trade at a discount to their net asset values. If our shares of our common stock trade at a discount to our net asset value, it will likely increase the risk of loss for purchasers in an offering made pursuant to this prospectus or any related prospectus supplement. Before investing in our securities, you should read the discussion of the material risks of investing in our securities, including the risk of leverage and dilution, in “Risk Factors” beginning on page 7 of this prospectus or otherwise incorporated by reference herein and included in, or incorporated by reference into, the applicable prospectus supplement and in any free writing prospectuses we have authorized for use in connection with a specific offering, and under similar headings in the other documents that are incorporated by reference into this prospectus.

This prospectus describes some of the general terms that may apply to an offering of our securities. We will provide the specific terms of these offerings and securities in one or more supplements to this prospectus. We may also authorize one or more free writing prospectuses to be provided to you in connection with these offerings. The accompanying prospectus supplement and any related free writing prospectus may also add, update, or change information contained in this prospectus. You should carefully read this prospectus, the accompanying prospectus supplement, any related free writing prospectus and the documents incorporated by reference herein, before investing in our securities and keep them for future reference. We also file periodic and current reports, proxy statements and other information about us with the SEC (http://www.sec.gov), which is available free of charge by contacting Oxford Square Capital Corp. at 8 Sound Shore Drive, Suite 255, Greenwich, CT 06830 or by telephone at (203) 983-5275, or by visiting our website (www.oxfordsquarecapital.com). The information found on, or otherwise accessible through, our website is not incorporated into, and does not form a part of this prospectus or any other report or document we file with or furnish to the SEC.

Neither the SEC nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

This prospectus may not be used to consummate sales of securities unless accompanied by a prospectus supplement.

September 26, 2022

TABLE OF CONTENTS

ABOUT THIS PROSPECTUS

This prospectus is part of a registration statement that we have filed with the SEC, using the “shelf” registration process. Under this shelf registration statement, we may offer, from time to time, in one or more offerings, up to $464,406,568 of our common stock, preferred stock, debt securities, subscription rights to purchase shares of our common stock, and/or warrants representing rights to purchase shares of our common stock, preferred stock or debt securities, on terms to be determined at the time of the offering. See “Plan of Distribution” for more information.

This prospectus provides you with a general description of the securities that we may offer. Each time we use this prospectus to offer securities, we will provide a prospectus supplement that will contain specific information about the terms of that offering. We may also authorize one or more free writing prospectuses to be provided to you that may contain material information relating to these offerings. In a prospectus supplement or free writing prospectus, we may also add, update, or change any of the information contained in this prospectus or in the documents we have incorporated by reference into this prospectus. This prospectus, together with the applicable prospectus supplement, any related free writing prospectus, and the documents incorporated by reference into this prospectus and the applicable prospectus supplement, will include all material information relating to the applicable offering. Before buying any of the securities being offered, please carefully read this prospectus, any accompanying prospectus supplement, any free writing prospectus and the documents incorporated by reference in this prospectus and any accompanying prospectus supplement.

This prospectus may contain estimates and information concerning our industry, including market size and growth rates of the markets in which we participate, that are based on industry publications and other third-party reports. This information involves many assumptions and limitations, and you are cautioned not to give undue weight to these estimates. We have not independently verified the accuracy or completeness of the data contained in these industry publications and reports. The industry in which we operate is subject to a high degree of uncertainty and risk due to a variety of factors, including those described or referenced in the section titled “Risk Factors,” that could cause results to differ materially from those expressed in these publications and reports.

This prospectus includes summaries of certain provisions contained in some of the documents described in this prospectus, but reference is made to the actual documents for complete information. All of the summaries are qualified in their entirety by the actual documents. Copies of some of the documents referred to herein have been filed or incorporated by reference, or will be filed or incorporated by reference, as exhibits to the registration statement of which this prospectus is a part, and you may obtain copies of those documents as described in the section titled “Available Information.”

You should rely only on the information included or incorporated by reference in this prospectus, any prospectus supplement or in any free writing prospectus prepared by us or on our behalf or to which we have referred you. We have not authorized any dealer, salesperson or other person to provide you with different information or to make representations as to matters not stated in this prospectus, in any accompanying prospectus supplement or in any free writing prospectus prepared by us or on our behalf or to which we have referred you. We take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. If anyone provides you with different or inconsistent information, you should not rely on it. This prospectus, any accompanying prospectus supplement and any free writing prospectus prepared by us or on our behalf or to which we have referred you do not constitute an offer to sell, or a solicitation of an offer to buy, any securities by any person in any jurisdiction where it is unlawful for that person to make such an offer or solicitation or to any person in any jurisdiction to whom it is unlawful to make such an offer or solicitation. You should not assume that the information included or incorporated by reference in this prospectus, in any accompanying prospectus supplement or in any such free writing prospectus is accurate as of any date other than their respective dates. Our financial condition, results of operations and prospects may have changed since any such date. To the extent required by law, we will amend or supplement the information contained or incorporated by reference in this prospectus and any accompanying prospectus supplement to reflect any material changes to such information subsequent to the date of the prospectus and any accompanying prospectus supplement and prior to the completion of any offering pursuant to the prospectus and any accompanying prospectus supplement.

RISK FACTORS

Investing in our securities involves a number of significant risks. Before you invest in our securities, you should be aware of and carefully consider the various risks associated with the investment, including those described in this prospectus, any accompanying prospectus supplement, any related free writing prospectus we may authorize in connection with a specific offering, “Part I, Item IA. Risk Factors” in our most recent Annual Report on Form 10-K for the fiscal year ended December 31, 2021, filed with the SEC on March 7, 2022, which is incorporated by reference herein in their entirety, “Part II, Item 1A. Risk Factors” in our most recent Quarterly Report on Form 10-Q for the quarter ended June 30, 2022, filed with the SEC on July 28, 2022, which is incorporated by reference herein in their entirety, and any document incorporated by reference herein. You should carefully consider these risk factors, together with all of the other information included in this prospectus, any accompanying prospectus supplement and any related free writing prospectus we may authorize in connection with a specific offering, before you decide whether to make an investment in our securities. The risks set out and described in these documents are not the only risks we face. Additional risks and uncertainties not presently known to us or not presently deemed material by us may also impair our business, operations and performance. If any of the following events occur, our business, financial condition and results of operations could be materially and adversely affected. In such case, you may lose all or part of your investment. Please also read carefully the section titled “Cautionary Statement Regarding Forward-Looking Statements.”

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

This prospectus, including the documents that we incorporate by reference herein, contains forward-looking statements that involve substantial risks and uncertainties. These forward-looking statements are not historical facts, but rather are based on current expectations, estimates and projections about Oxford Square, our current and prospective portfolio investments, our industry, our beliefs, and our assumptions. Words such as “anticipates,” “expects,” “intends,” “plans,” “will,” “may,” “continue,” “believes,” “seeks,” “estimates,” “would,” “could,” “should,” “targets,” “projects,” and variations of these words and similar expressions are intended to identify forward-looking statements. The forward-looking statements contained in this prospectus involve risks and uncertainties, including statements as to:

•        our future operating results, including our ability to achieve objectives as a result of the current COVID-19 pandemic;

•        our business prospects and the prospects of our portfolio companies;

•        the impact of investments that we expect to make;

•        our contractual arrangements and relationships with third parties;

•        the dependence of our future success on the general economy and its impact on the industries in which we invest and the impact of the COVID-19 pandemic thereon;

•        the ability of our portfolio companies and CLO investments to achieve their objectives, including as a result of the COVID-19 pandemic;

•        the valuation of our investments in portfolio companies and CLOs, particularly those having no liquid trading market, and the impact of the COVID-19 pandemic thereon;

•        market conditions and our ability to access alternative debt markets and additional debt and equity capital, and the impact of the COVID-19 pandemic thereon;

•        our expected financings and investments;

•        the adequacy of our cash resources and working capital;

•        the timing of cash flows, if any, from the operations of our portfolio companies and CLO investments and the impact of the COVID-19 pandemic thereon; and

•        the ability of our investment adviser to locate suitable investments for us and monitor and administer our investments and the impact of the COVID-19 pandemic thereon.

These statements are not guarantees of future performance and are subject to risks, uncertainties, and other factors, some of which are beyond our control and difficult to predict and could cause actual results to differ materially from those expressed or forecasted in the forward-looking statements, including without limitation:

•        an economic downturn, including as a result of the current COVID-19 pandemic, could impair our portfolio companies’ and CLO investments’ ability to continue to operate, which could lead to the loss of some or all of our investments in such portfolio companies and CLO investments;

•        the impact of the elimination of the London Interbank Offered Rate (“LIBOR”) and implementation of alternatives to LIBOR on our operating results;

•        a contraction of available credit and/or an inability to access the equity markets, including as a result of the current COVID-19 pandemic, could impair our lending and investment activities;

•        interest rate volatility could adversely affect our results, particularly because we use leverage as part of our investment strategy;

•        the elevating levels of inflation and its impact on our investment activities and the industries in which we invest;

•        currency fluctuations could adversely affect the results of our investments in foreign companies, particularly to the extent that we receive payments denominated in foreign currency rather than U.S. dollars;

•        the impact of information technology system failures, data security breaches, data privacy compliance, network disruptions and cybersecurity attacks; and

•        the risks, uncertainties and other factors we identify in “Item 1A. Risk Factors” in our most recent Annual Report on Form 10-K, as well as in any of our subsequent SEC filings.

Although we believe that the assumptions on which these forward-looking statements are based are reasonable, any of those assumptions could prove to be inaccurate, and as a result, the forward-looking statements based on those assumptions also could be inaccurate. Important assumptions include our ability to originate new loans and investments, certain margins and levels of profitability and the availability of additional capital. In light of these and other uncertainties, the inclusion of a projection or forward-looking statement in this prospectus should not be regarded as a representation by us that our plans and objectives will be achieved. These risks and uncertainties include those described or identified in “Item 1A. Risk Factors” in our most recent Annual Report on Form 10-K, as well as in any of our subsequent SEC filings. You should not place undue reliance on these forward-looking statements, which apply only as of the date of this prospectus. However, we will update this prospectus, and the documents that we incorporate by reference herein, to reflect any material changes to the information contained herein. The forward-looking statements contained in this prospectus, including the documents that we incorporate by reference herein, are excluded from the safe harbor protection provided by Section 27A of the Securities Act.

USE OF PROCEEDS

We intend to use the net proceeds from the sale of our securities pursuant to this prospectus for general corporate purposes, which may include investments in corporate debt and equity securities and investments in collateralized loan obligations. The supplement to this prospectus relating to an offering will more fully identify the use of the proceeds from such offering.

We estimate that it will take up to six months for us to substantially invest the net proceeds of any offering made pursuant to this prospectus, depending on the availability of attractive opportunities and market conditions. However, we can offer no assurance that we will be able to achieve this goal.

Pending these uses, we will invest such net proceeds primarily in cash, cash equivalents, and U.S. government securities and other high-quality debt investments that mature in one year or less, which are consistent with maintaining our election as a RIC. These temporary investments are expected to provide a lower net return than we hope to achieve from our target investments. The management fee payable by us to our investment adviser will not be reduced while our assets are invested in such temporary investments.

PRICE RANGE OF COMMON STOCK AND DISTRIBUTIONS

The following information is qualified by reference to, and should be read in conjunction with, the information in our most recent Annual Report on Form 10-K for the fiscal year ended December 31, 2021, filed with the SEC on March 7, 2022, and in our most recent Quarterly Report on Form 10-Q for the quarter ended June 30, 2022, filed with the SEC on July 28, 2022, regarding the price range of our common stock, distributions and stockholders of record, which is incorporated by reference herein.

Our common stock is traded on the Nasdaq Global Select Market under the symbol “OXSQ.” The following table sets forth, for each fiscal quarter during the last two fiscal years and the current fiscal year to date, the net asset value, or “NAV,” per share of our common stock, the high and low intraday sales prices for our common stock, such sales prices as a percentage of NAV per share and quarterly distributions per share.

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(1)      Net asset value per share is determined as of the last day in the relevant quarter and therefore may not reflect the net asset value per share on the date of the high and low sales prices. The net asset values shown are based on outstanding shares at the end of each period.

(2)      Calculated as the respective high or low intraday sales price divided by NAV and subtracting 1.

(3)      Represents the cash distributions, including dividends, dividends reinvested and returns of capital, if any, per share that we have declared on our common stock in the specified quarter.

Shares of BDCs may trade at a market price that is less than the value of the net assets attributable to those shares. The possibility that our shares of common stock will trade at a discount from net asset value or at premiums that are unsustainable over the long term are separate and distinct from the risk that our net asset value will decrease. Since our initial public offering, shares of our common stock have traded at a discount and at a premium to the net assets attributable to those shares. It is not possible to predict whether the shares offered hereby will trade at, above, or below net asset value.

On September 14, 2022, the last reported sales price of our common stock was $3.73 per share. As of September 14, 2022, we had 129 stockholders of record.

MANAGEMENT’S DISCUSSION AND ANALYSIS OF
FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The information in “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our most recent Annual Report on Form 10-K for the fiscal year ended December 31, 2021, filed with the SEC on March 7, 2022, and in “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our most recent Quarterly Report on Form 10-Q for the quarter ended June 30, 2022, filed with the SEC on July 28, 2022, is incorporated by reference herein.

SENIOR SECURITIES

The information about our senior securities (including preferred stock, debt securities and other indebtedness) for each of the years ended December 31, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013 and 2012 may be found in “Part II, Item 8. Financial Statements and Supplementary Data” of our most recent Annual Report on Form 10-K for the fiscal year ended December 31, 2021, filed with the SEC on March 7, 2022, and information about our senior securities for our most recently completed fiscal quarter may be found in “Part I, Item 1. Financial Statements” of our most recent Quarterly Report on Form 10-Q for the quarter ended June 30, 2022, filed with the SEC on July 28, 2022, which are incorporated by reference herein. The report of PricewaterhouseCoopers LLP, an independent registered public accounting firm, on the Senior Securities table as of December 31, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013 and 2012, has been incorporated by reference as an exhibit to the registration statement of which this prospectus is a part.

PORTFOLIO COMPANIES

The following table sets forth certain information as of June 30, 2022 regarding each portfolio company in which we have a debt or equity investment. The general terms of our loans and other investments are described in “Item 1. Business — Investment Process” in our most recent Annual Report on Form 10-K. We offer to make available significant managerial assistance to our qualified portfolio companies. We may receive rights to observe the meetings of our portfolio companies’ board of directors. Other than these investments, our only relationships with our portfolio companies are the managerial assistance we may separately provide to our portfolio companies, which services would be ancillary to our investments.