OFS Capital Corp

for the 2025 Annual Meeting of Stockholders

to be held on Wednesday, June 11, 2025

This Proxy Statement is furnished in connection with the solicitation of proxies by the board of directors of OFS Capital Corporation, also referred to in this proxy statement as the “Company,” “OFS Capital,” “we” or “us,”for use at our 2025 Annual Meeting of Stockholders, or the Annual Meeting, to be held on Wednesday, June 11, 2025 at 10:00 a.m., local time, at 222 West Adams Street, Suite 1850, Chicago, Illinois 60606, and at any adjournment or postponement thereof. You may obtain directions to the location of the Annual Meeting by contacting Tod K. Reichert, Corporate Secretary, OFS Capital Corporation,222 West Adams Street, Suite 1850, Chicago, Illinois 60606; telephone: (847) 734-2000.

All proxies will be voted in accordance with the instructions contained in those proxies. If no choice is specified, the proxies will be voted FOR the election of the director nominee of our board of directors and FOR the ratification of our independent public accounting firm. Any proxy may be revoked by a stockholder at any time before it is exercised by delivery of written revocation to our corporate secretary, by submission of a new, later-dated proxy or by appearing at the Annual Meeting and voting in person, See “ — Changing Your Vote; Revocation of Proxy” below.

It is anticipated that the Notice of Internet Availability of Proxy Materials will first be sent to stockholders on or about April 30, 2025. This proxy statement, including the accompanying form of proxy, collectively referred to as the Proxy Statement, and the Company’s Annual Report for the fiscal year ended December 31, 2024, or the Annual Report, will first be made available to stockholders on or about April 30, 2025. The Annual Report and Proxy Statement can both be accessed online atwww.proxyvote.com.

A copy of our Annual Report on Form 10-K for the fiscal year ended December 31, 2024, as filed with the U.S. Securities and Exchange Commission, except for exhibits, will be furnished without charge to any stockholder upon written request to OFS Capital Corporation, 222 West Adams Street, Suite 1850, Chicago, Illinois 60606, Attention: Tod K. Reichert, Corporate Secretary, telephone: (847) 734-2000.