Tax Deadline 2024. For most of us, the last day to file a 2023 federal income tax return was monday, april 15, 2024. The last tax year started on 6 april 2023 and ended on 5 april 2024.

The deadline this tax season for filing form 1040, u.s. You can extend the due date for filing your personal income tax return by six months (e.g., to october 15, 2024, for 2023 tax year returns) by filing form 4868 or.