For most U.S. taxpayers, taxes you file in 2026 will be for the 2025 tax year, and the standard federal deadline to file and pay is April 15, 2026.

Key 2026 federal deadlines

  • Regular filing deadline (most people in the U.S.) :
    • File your 2025 federal income tax return and pay any tax due by April 15, 2026.
* This is also the last day to request an automatic extension.
  • If you request an extension :
    • An extension to file (Form 4868) typically moves your filing deadline to October 15, 2026 , but you still must pay any tax owed by April 15, 2026 to avoid interest.
  • If you’re a U.S. citizen/resident living abroad on April 15 :
    • You usually get an automatic 2‑month extension to file, to about June 16, 2026 , but the payment deadline is still April 15, 2026.

Other notes to keep in mind

  • State tax deadlines can differ from federal rules, so check your state’s revenue or tax department site for 2026 dates. Some states follow the April 15 federal date, while others set their own deadlines.
  • If you expect a refund and you miss April 15, you generally will not get a penalty for late filing, but it is still better to file on time to avoid any issues and to get your refund sooner.

If you share your country or state, filing status (single, married, etc.), and whether you live abroad, more tailored deadline details can be clarified.