Last Day To File Taxes 2024 Extension Due. Washington — the internal revenue service today reminded taxpayers about the upcoming tax filing extension deadline. For most taxpayers, the deadline to file their personal federal tax return, pay any tax owed or request an extension to file is monday, april 15, 2024.

For tax year 2023 (filed in 2024), you needed to submit your tax extension request by monday, april 15—the regular tax filing deadline—or face a penalty. Individual income tax return by the original due date of your return.