When is my IRS deadline and how many days are left in 2025?

Track IRS filing, extension, and notice response deadlines for 2025 or 2026 by entering your situation and notice date. The countdown shows days remaining and key milestones so you can plan mailing or e‑filing time and avoid late penalties.

No login required.

How this calculation works

  • Calculates days remaining based on the selected deadline.
  • Highlights common filing and response milestones.
  • Prompts for notice dates to estimate response windows.

Common mistakes and caveats

  • Deadlines can shift for weekends or disaster relief.
  • Notices may specify different response dates than standard rules.
  • This is a planning tool, not an official IRS notice.

FAQ

Does an extension give more time to pay?

No. An extension gives more time to file, but payments are still due by the original deadline.

Last updated & sources

Last updated January 27, 2026.

TaxGuide Pro provides free state and federal tax calculators for individuals, freelancers, and small businesses.