Tax Return Extension Deadline 2024 Extension. The new deadline is december 31, 2024, applicable to short tax periods ending on or before february 29, 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.

The income tax return filing deadline of july 31 is fast approaching. The deadline for filing income tax returns (itr) for those who require an audit remains 31 october 2024 as on date.