The IRS opens its filing season in late January most years

The Internal Revenue Service typically begins accepting tax returns in late January or early February. The exact date shifts slightly each year because the IRS needs time to update its systems after the previous tax year closes. For the 2024 tax year, the IRS started accepting returns on January 29, 2024. For 2025 returns, filing opened on January 27, 2025. The agency announces the opening date in the fall of the previous year, so you can plan ahead.

The filing season does not open all at once for everyone. The IRS staggers when different types of returns are accepted — returns with certain credits or complex situations may not be accepted until a few weeks after the official opening date. This staggered approach helps the IRS process returns more evenly throughout the season rather than being overwhelmed on day one.

You can file your return as soon as you have all the documents you need, even if the season has just opened. You do not have to wait. Many people file in February or March because that is when they receive their W-2 forms from employers or 1099 forms from banks and investment accounts. The important date to file is typically April 15, though the IRS may extend it if that date falls on a weekend or holiday.

Key Takeaways

  • The IRS opens its filing season in late January or early February each year, with the exact date announced in the fall beforehand.
  • You can file your return as soon as you have your W-2s, 1099s, and other income documents, even on the first day the season opens.
  • The IRS staggers acceptance of certain return types, so some returns with credits or complex situations may not be accepted until a few weeks after the opening date.
  • The filing important date is usually April 15, giving you roughly 2.5 to 3 months from the opening of the season to submit your return.

Why the IRS does not open filing season on January 1

The IRS needs time after December 31 to update its computer systems and prepare for the incoming volume of returns. Tax law changes, new forms, and updated software all have to be tested and deployed before the agency can safely accept millions of returns. This preparation typically takes three to four weeks into the new year.

The agency also waits for employers and financial institutions to send in their own data. Employers must file W-2 forms with the IRS by January 31, and the IRS cross-checks those against the returns you file. If the IRS opened filing on January 1, returns filed before the W-2 data arrived could create mismatches that slow processing. By waiting until late January, the IRS has most of that employer data in hand.

When you can file before the official opening date

You cannot file a federal tax return with the IRS before the filing season opens, even if you have all your documents ready. The IRS systems straightforward will not accept the return. However, many tax software companies and tax preparers allow you to prepare your return and save it before the season opens — you just cannot transmit it to the IRS until the official date.

Some states open their filing seasons on different dates than the federal IRS. If you owe state taxes, check your state's tax agency website for its opening date. A few states open in early January, while others wait until the federal season opens. You will need to file both federal and state returns separately, and each has its own important date.

How to know the exact opening date for your return type

The IRS publishes the filing season opening date on its official website (irs.gov) in October or November of the previous year. You can search "IRS filing season opening date" and find the announcement. The IRS also lists whether certain return types — such as those claiming the Earned Income Tax Credit or the Additional Child Tax Credit — will be accepted on a later date than the general opening.

Tax software companies and tax preparation services also display the opening date prominently when you log in during the off-season. If you use a tax preparer or accountant, they will know the opening date and can tell you when they can file your return. Many preparers begin accepting client documents in December so they can file returns the moment the season opens.

What happens if you file after April 15

If you do not file by April 15, you may owe a failure-to-file penalty in addition to any taxes owed. The penalty is usually 5 percent of the unpaid tax for each month the return is late, up to 25 percent total. If you owe taxes and file late, interest also accrues on the unpaid amount from the original April 15 important date.

If you are owed a refund, there is no penalty for filing late — you straightforward receive your refund whenever you file. However, the IRS can hold refunds for returns filed very late in the year while it verifies the information. Filing earlier in the season generally means you receive any refund faster.

Filing early versus waiting until later in the season

Filing early in the season — February or March — has several advantages. The IRS processes returns in the order they are received, so early filers typically receive refunds within three weeks. Early filing also gives you time to address any problems the IRS finds before the April 15 important date. If the IRS needs more information from you, you have weeks to respond rather than days.

Some people wait to file until closer to April 15 because they are still gathering documents or waiting for a tax preparer to have an opening. This is a valid choice if you owe taxes rather than expecting a refund — you do not have to file until April 15. However, if you are owed a refund, filing earlier means you receive your money sooner. If you wait until early April, the IRS may still be processing your return after the important date has passed, which can delay your refund.

Frequently Asked Questions

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

No. The IRS will not accept your return before the official opening date, even if you have all your documents. You can prepare your return using tax software before the season opens, but you cannot submit it to the IRS until the filing season begins.

What is the difference between the filing season opening date and the tax important date?

The filing season opening date is when the IRS begins accepting returns — typically late January or early February. The tax important date is when you must file — usually April 15. You have roughly 2.5 to 3 months between these two dates to submit your return.

Do all states open their filing season on the same date as the IRS?

No. Some states open earlier than the federal IRS, and others wait until the federal season opens. Check your state's tax agency website for its specific opening date if you owe state taxes.

What happens if I file my return late?

If you owe taxes and file after April 15, you will owe a failure-to-file penalty and interest on the unpaid amount. If you are owed a refund, there is no penalty for filing late, but your refund may be delayed while the IRS verifies your information.

Why does the IRS not accept returns on January 1?

The IRS needs time to update its systems, test new forms and software, and receive employer W-2 data. This preparation typically takes three to four weeks into the new year, so the filing season opens in late January instead.