For the 2025 tax year (the return you file in 2026 in the U.S.), Tax Day is April 15, 2026. If you file an extension, you generally have until October 15, 2026 to actually file the return, but any tax you owe is still due by April 15.

Quick Scoop

  • Last day to file 2025 taxes without an extension: April 15, 2026.
  • Last day to file if you request an extension (Form 4868): October 15, 2026.
  • Last day to pay 2025 taxes without late-payment penalties: Still April 15, 2026, even if you extend.

Think of it like this:

April 15 is your “pay and (usually) file” day; October 15 is only a “finish the paperwork” backup date if you got an approved extension.

Little Timeline Story

Picture your 2025 money year running quietly in the background. It ends on December 31, 2025. You spend early 2026 gathering W‑2s, 1099s, and receipts. As the calendar creeps toward April 15, 2026 , that’s your main finish line: the government expects your return filed and any balance due paid by that date.

If life is chaotic—moving, new job, missing forms—you can hit pause with Form 4868 by April 15, which pushes your filing deadline to October 15, 2026 , but the clock on interest and possible penalties for unpaid tax still starts after April 15.

Fast Facts (U.S. federal)

  • Applies to most individual taxpayers filing Form 1040 on a calendar year.
  • If April 15 ever lands on a weekend or holiday, the due date can shift to the next business day (not the case for 2026).
  • Some disaster‑area taxpayers can get special later deadlines if the IRS announces relief for their region.

One More Thing

This is for U.S. federal income taxes; state tax deadlines can be different, so you may want to check your state’s revenue or tax department site for their exact dates.

TL;DR:
The last regular day to do your 2025 U.S. federal taxes is April 15, 2026 ; with an extension, you can file by October 15, 2026 , but you still have to pay by April 15.📄

Information gathered from public forums or data available on the internet and portrayed here.