The IRS filing season typically opens in late January and closes on April 15

The IRS does not accept tax returns year-round. Filing season opens in late January most years — usually around January 23 to January 29 — and the important date to file is April 15 of that year. This means you have roughly 2.5 to 3 months to submit your return.

The exact opening date shifts slightly each year because the IRS needs time to update its systems after the previous tax year closes. The IRS announces the opening date in November or December of the prior year, so you can plan ahead. If April 15 falls on a weekend or federal holiday, the important date moves to the next business day.

Filing before the season opens does not work. If you submit a return in December or January before the IRS is ready, it will be rejected and you will have to resubmit once the season begins.

Key Takeaways

  • The IRS filing season opens in late January each year and closes on April 15, giving you roughly 2.5 to 3 months to file.
  • The exact opening date varies by a week or two and is announced by the IRS in late fall of the prior year.
  • Filing before the season opens will result in rejection; you must wait for the official start date.
  • If you cannot file by April 15, you can request an extension that moves your important date to October 15 of the same year.
  • The IRS processes returns faster when you file early in the season, typically within 21 days for e-filed returns.

Why the IRS does not open earlier

The IRS needs time after December 31 to receive final documents from employers, financial institutions, and other sources. W-2 forms from your employer, 1099 forms for freelance income or investment earnings, and mortgage interest statements all have to reach the IRS before the agency can safely process returns that claim those amounts.

Employers must send W-2 forms to the IRS by January 31. The IRS waits until late January to may support most of these documents have arrived and been logged into their system. If you filed in early January before W-2s were submitted, the IRS would have no way to verify your income, and returns would be flagged or rejected.

This delay also gives the IRS time to update its software and security systems after the previous year's filing season ends. The agency processes millions of returns and must test its systems thoroughly before opening to the public.

How to find the exact opening date for this year

The IRS publishes the filing season opening date on its official website, irs.gov, in November or December of the prior year. You can search "IRS filing season opens" on that site to find the announcement. The date is also listed on the IRS's homepage during tax season.

Tax software companies like TurboTax, H&R Block, and TaxAct also display the opening date prominently when you log in during late fall. If you work with a tax professional or accountant, they will have the date and can tell you when to bring your documents in.

Do not rely on news articles or social media for the exact date — the IRS sometimes adjusts the opening by a day or two due to system issues. Always check irs.gov directly or contact a tax professional to confirm.

Filing early versus filing close to the important date

Filing early in the season — January or February — has real advantages. The IRS processes e-filed returns within 21 days on average when filed early. If you are owed a refund, you will receive it faster. Early filing also gives you time to fix any errors the IRS finds before the April 15 important date.

Filing in March or early April means longer wait times. The IRS is processing millions of returns simultaneously, and refunds can take 4 to 6 weeks or longer. If there is a problem with your return, you may not have time to correct it before the important date passes.

Filing on or after April 1 is risky. If you owe taxes and miss the important date, you will owe penalties and interest on top of what you already owe. If you are owed a refund, there is no penalty for filing late, but you will wait much longer to receive it.

What to do if you cannot file by April 15

You can request an extension that moves your filing important date to October 15 of the same year. An extension gives you six additional months, but it does not extend the important date for paying taxes you owe. If you think you will owe money, you should pay as much as you can by April 15 to avoid penalties and interest on the unpaid balance.

To request an extension, file Form 4868 with the IRS. You can file this form electronically through tax software, by mail, or through a tax professional. The form must reach the IRS by April 15 — filing the extension after the important date does not count.

An extension is useful if you are waiting for documents like K-1 forms from partnerships or S-corporations, or if you need more time to gather records. It is not useful if you are trying to delay paying taxes you owe, because interest and penalties continue to accrue.

How the filing season schedule affects refunds

The IRS typically issues refunds within 21 days of receiving an e-filed return, but only during the filing season. Once the season ends on April 15, processing slows down significantly. Returns filed in May or June may take 8 to 12 weeks to process.

If you file by mail instead of electronically, add 2 to 4 weeks to the processing time. Paper returns are slower because they have to be scanned and entered into the IRS system by hand.

The IRS also holds some returns for additional review. If your return contains certain credits, deductions, or income types, or if there are inconsistencies in your documents, the IRS may flag it for manual review. These returns take longer — sometimes 2 to 3 months — regardless of when you file.

State tax filing important date

Most states follow the federal April 15 important date, but a few have different dates. You should check your state's tax agency website to confirm the important date in your state. Some states do not have an income tax at all, so you would only file with the IRS.

If you request a federal extension to October 15, most states will grant you an extension as well. However, a few states have their own extension important date that differ from the federal date. Check with your state tax agency to be certain.

Frequently Asked Questions

Can I file my taxes before the IRS filing season opens?

No. If you submit a return before the IRS filing season opens in late January, it will be rejected. You must wait for the official opening date. Tax software will not allow you to e-file before the season begins, and the IRS will not accept paper returns either.

What happens if I file after April 15?

If you owe taxes and file late, you will owe penalties and interest on the unpaid amount. If you are owed a refund, there is no penalty, but you will wait longer to receive it. You can request an extension by April 15 to move your important date to October 15.

How long does it take to get a refund if I file early?

The IRS typically issues refunds within 21 days of receiving an e-filed return during the filing season. Paper returns take longer — usually 4 to 6 weeks. Some returns are held for additional review and may take 2 to 3 months.

Do I have to file on the opening day of tax season?

No. You can file anytime between the opening date in late January and April 15. Filing early gives you faster refunds and more time to fix errors, but there is no requirement to file on the first day.

What if my state has a different tax important date than April 15?

Most states follow the federal April 15 important date. Check your state's tax agency website to confirm the important date in your state. If your state has a later important date, you should still file by April 15 to avoid federal penalties.