f you filed for an extension with the IRS back in April, your deadline to file your 2025 federal tax return is Thursday, Oct. 15. Tax Day 2026 — the deadline for filing your 2025 taxes — was April 15. If you needed more time to complete your tax return, you would have had to file a request to the IRS for an automatic six-month extension.
Remember: Any federal taxes you owed were still due April 15. An extension only gives you more time to file your return, not pay your taxes, meaning you could face penalties and interest if you didn’t pay enough on time.
