when is tax extension deadline 2025

The tax extension deadline for filing a tax return in 2025 is October 15, 2025. The regular tax filing deadline is April 15, 2025, and taxpayers can request an extension by this date (usually by filing Form 4868), which gives them until October 15, 2025, to file their tax return without penalties. It is important to note that the extension applies only to filing the return, not to paying any taxes owed, which must still be paid by April 15, 2025, to avoid interest and penalties.