When are taxes due in 2026

Modified on Mon, 29 Sep at 1:09 PM

For the 2025 tax year (filed in 2026), individual and business taxpayers should be aware of the federal filing deadlines. Below you’ll find the exact due dates for 2026, how extensions work, quarterly estimated payments, and answers to common questions.

Quick Answer

Most individuals must file by April 15, 2026.
With a valid extension, the final deadline moves to October 15, 2026.
Partnership and S corporation returns are due earlier: March 16, 2026.

2026 Federal Deadlines at a Glance

Filer / Form	Original Due Date	Extended Due Date
Individuals (Form 1040)	April 15, 2026	October 15, 2026
Partnerships (Form 1065)	March 16, 2026	September 15, 2026
S Corporations (Form 1120-S)	March 16, 2026	September 15, 2026
C Corporations (Form 1120)	April 15, 2026	October 15, 2026
Trusts & Estates (Form 1041)	April 15, 2026	September 30, 2026

See full IRS details at IRS Filing Deadlines.

Quarterly Estimated Tax Payments

Taxpayers who expect to owe $1,000 or more generally must make quarterly estimated tax payments. For the 2025 tax year, the deadlines are:

April 15, 2025
June 16, 2025
September 15, 2025
January 15, 2026

More details: IRS Estimated Payments.

Extensions

If you cannot file by the regular due date, you can apply for an extension. Individuals file Form 4868 (Personal Tax Extension), while businesses typically file Form 7004 (Business Extension).

Remember: an extension to file is not an extension to pay. You should pay any taxes owed by April 15, 2026, to avoid penalties and interest.

Bottom Line

The tax filing deadline in 2026 is April 15, 2026 for most individuals and businesses. With an approved extension, the final date is October 15, 2026. Partnerships and S corporations face earlier March deadlines. Staying on top of these dates helps you avoid penalties and interest.

More resources: TaxExtension Resources | Support Center