COLONY BANKCORP INC

proxy statement of TC Bancshares and the Company and a prospectus of the Company, as well as other relevant documents concerning the proposed transaction. WE URGE INVESTORS AND SECURITY HOLDERS TO READ THE REGISTRATION STATEMENT ON FORM S-4, THE JOINT PROXY STATEMENT/PROSPECTUS INCLUDED WITHIN THE REGISTRATION STATEMENT ON FORM S-4 AND ANY OTHER RELEVANT DOCUMENTS FILED WITH THE SEC IN CONNECTION WITH THE

4 CAUTIONARY STATEMENTS PROPOSED MERGER BECAUSE THEY CONTAIN IMPORTANT INFORMATION ABOUT THE COMPANY, TC BANCSHARES AND THE PROPOSED MERGER. The joint proxy statement/prospectus was sent to the shareholders of TC Bancshares seeking the required shareholder approval. Investors and security holders may obtain free copies of the registration statement on Form S-4 and the related joint proxy statement/prospectus, as well as other documents filed with the SEC by the Company through the web site maintained by the SEC at www.sec.gov. Documents filed with the SEC by the Company are also available free of charge by directing a written request to Colony Bankcorp, Inc., 115 South Grant Street, Fitzgerald, Georgia 31750, Attn: Derek Shelnutt and on the Company’s website, colony.bank, under Investor Relations. The Company’s telephone number is (229) 426-6000. Participants in the Transaction Colony, TC Bancshares and certain of their respective directors and executive officers may be deemed to be participants in the solicitation of proxies from the shareholders of TC Bancshares and Colony in connection with the Proposed Merger. Certain information regarding the interests of these participants and a description of their direct and indirect interests, by security holdings or otherwise, is included in the joint proxy statement/prospectus regarding the proposed transaction. Additional information about Colony and its directors and officers may be found in the definitive proxy statement of Colony relating to its 2025