Personal Tax Extension Deadline 2024 Extension Deadline. Most taxpayers who requested an extension of time to file their 2023 tax return must file by tuesday, oct. April 11, 2023 — if you can’t file your federal tax return by the april 18, 2023, deadline, request an extension.
The deadline for requesting an extension for 2024 was april 15. This gives you until october 15 to file without penalties.