Business Tax Return Extension Deadline 2024. You can extend the due date for filing your personal income tax return by six months, to october 15, 2025, for 2024 tax year returns, by filing form 4868 or making an electronic tax payment before the april 15 deadline. If you filed an extension for your s corporation or partnership, your tax return must be filed by september 16, 2024.
However, you must file your 2023 taxes by april 15, 2026. If you need more time to file your taxes, request an extension by the april tax filing due date.