2025 Filing Deadline 2025 Filing Deadline. This is the deadline for most taxpayers to pay their third quarterly estimated tax payment for the 2025 tax. The last day to file your taxes for 2025 is april 15, 2025, unless you file for an extension, which will give you until october 15, 2025.

Key dates for the 2025 tax season in 2025, you can start submitting your returns to the irs in january. If you are out of country, you typically have an additional two months.