Tax season 2026 in the U.S. will center on filing 2025 tax returns, with the main deadline expected to remain April 15, 2026, while the exact IRS opening date is still not officially set but is expected to be in late January or possibly mid‑February.

Quick Scoop

  • Core dates
    • Expected start of tax season 2026: late January 2026, but some reports note possible delay until around Presidents Day (February 16, 2026) depending on IRS decisions.
* Federal Tax Day for 2026 (for 2025 returns): Monday, April 15, 2026, for most taxpayers.

* Typical extension deadline: October 15, 2026, if you file a valid extension.

What “tax season 2026” means

  • Tax season 2026 is when you file your 2025 federal income tax return, usually in the roughly three‑month window from the IRS opening date through April 15.
  • The season “starts” when the IRS begins accepting e‑filed returns and “ends” on Tax Day, even though you can still interact with the IRS afterward for payments, plans, or amended returns.

Expected timeline details

  • Several tax firms and financial sites say the IRS generally starts accepting returns in late January, and current 2026 calendars still label the start date as “TBD, 2026,” confirming it is not yet fixed.
  • A prominent news report notes the IRS commissioner has indicated that the 2026 filing season may begin around Presidents Day (February 16), which would be about a three‑week delay compared with recent years; however, this is still speculative and not a formal announcement.

Key 2026 tax deadlines at a glance

[5][9][3][7] [7] [9][1][3][7] [1][7]
Event Likely Date (2026) Notes
Season opens (IRS starts accepting returns) Late January 2026, possibly mid‑February Exact date not yet announced; some reports suggest around Presidents Day (Feb 16).
W‑2s & many 1099s due to you Early February 2026 (e.g., Feb 2 on some calendars) Employers and payers typically must send these by end of January or early February.
Main Tax Day (individual 1040) April 15, 2026 Standard federal filing & payment deadline for 2025 returns for most taxpayers.
Extension deadline October 15, 2026 Last day to file if you obtained a timely extension; tax still generally due by April 15.

Practical tips for 2026

  • Plan as if:
    • Your forms (W‑2, 1099, etc.) arrive by early February, so you can file any time after that.
* The final deadline remains April 15, 2026, unless the IRS announces a change or a holiday/disaster extension applies.
  • To stay fully current, check the IRS’s official announcements in early January 2026, since that is when the agency usually publishes the exact opening date.

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