You can usually file your federal taxes as soon as the IRS opens tax season, which is typically in late January , and you have until April 15 to file on time for most years.

Key dates in plain English

  • For the 2025 tax year (the return you file in 2026), the regular filing deadline is April 15, 2026.
  • The IRS generally starts accepting electronically filed returns in late January each year; for the 2025 tax year this will again be in that late‑January window.
  • If you need more time, you can request an extension by April 15, which typically gives you until October 15 to file, though any tax you owe is still due by April 15.

So, how soon can you file?

  • You can prepare your return as soon as you have all your forms (W‑2s, 1099s, etc.), which most employers must send by the end of January.
  • You can actually submit (e‑file) once the IRS opens tax season in late January; filing earlier in that window can help you get your refund faster and can reduce the risk of identity theft.

Think of it like a window: it usually opens in late January (earliest you can file), and it closes on April 15 for on‑time filing, with an optional extension to mid‑October if you ask.

Quick tips before you file

  • Wait until you have all your income forms so you do not have to amend your return later.
  • Filing electronically and choosing direct deposit is usually the fastest way to get a refund, often within about 21 days if there are no issues.
  • If your situation is more complex (self‑employment, investments, rentals), start organizing documents early even before the IRS opens filing, so you can submit soon after late January.

Bottom line: You can typically file as soon as the IRS opens tax season in late January , and you should aim to file by April 15 unless you request an extension.