Tax Extension Deadline 2024 Form. For the 2023 tax year, you can file 2023, 2022, and 2021 tax year returns. April 11, 2023 — if you can’t file your federal tax return by the april 18, 2023, deadline, request an extension.

Filing this form gives you until october 15 to file a return. If this date falls on a weekend or holiday, it will be moved to the next business day.