Irs File Extension 2024 Form. If you’re not ready, an extension might be the answer. You can file an extension for your taxes this tax year by submitting irs form 4868 with the internal revenue service (irs) online or by mail.

Mail your letter to the address found on form 4868 under the heading “ where to file”. For the 2023 tax year, most taxpayers must pay by the original filing deadline of april 15, 2024—even if they file for an extension.