For the 2025 tax year (the return you file in 2026), the IRS begins accepting and processing federal individual income tax returns on January 26, 2026.

Key 2026 IRS dates

  • IRS opens for e‑filed returns: January 26, 2026.
  • General filing deadline for 2025 returns: April 15, 2026, for most taxpayers.
  • Early access for some Free File users: Certain “qualified taxpayers” using IRS Free File can have returns accepted as early as January 9, 2026 , though full processing may still line up with the official opening date.

Why the acceptance date matters

  • Filing as soon as returns are accepted can help you get your refund sooner, especially if you e‑file and choose direct deposit.
  • Filing early may reduce the window for tax‑related identity theft and helps resolve any issues (like missing forms or dependent disputes) before the April deadline crunch.

Quick note for non‑US readers

  • In the UK, for example, online Self Assessment tax returns are generally due by 31 January following the tax year , and you can usually submit them anytime after the tax year ends, once HMRC’s online system for that year is open.

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