The IRS opens filing for 2026 returns on January 24, 2027

The Internal Revenue Service will begin accepting 2026 tax returns on Saturday, January 24, 2027. This date applies whether you file electronically or by mail. The important date to file or request an extension is Tuesday, April 20, 2027.

The January 24 start date gives the IRS time to update its systems after the previous tax year closes. During the weeks before that date, tax software companies and tax professionals prepare their tools and forms. If you try to file before January 24, the IRS will reject your return, even if it is complete and correct.

The April 20 important date is a Tuesday rather than the usual April 15 because April 15, 2027 falls on a Wednesday, and the IRS observes Emancipation Day (June 19) as a federal holiday. When April 15 would fall on a weekend or when a federal holiday falls on or near that date, the important date shifts. You can request a six-month extension to October 20, 2027, but that extension only delays filing — it does not delay payment of taxes owed.

Key Takeaways

  • The IRS will accept 2026 returns starting January 24, 2027, whether you file electronically or by mail.
  • The filing important date is April 20, 2027, which is later than the usual April 15 because of how the calendar falls that year.
  • You can request a six-month extension to October 20, 2027, but you still owe any taxes due by April 20 to avoid penalties and interest.
  • Tax software and tax professionals will have their 2026 tools ready by mid-January 2027, before the IRS filing window opens.

Why the IRS does not open filing when ready after the year ends

The IRS needs time between the end of one tax year and the opening of the filing window to process final documents and update its systems. Employers, banks, and other institutions send W-2s, 1099s, and other income documents to the IRS throughout January. The IRS uses the first three weeks of January to receive and organize these documents so it can match them against the returns you file.

If the IRS opened filing on January 1, returns would arrive before the agency had received all the supporting documents from employers and financial institutions. This mismatch would create delays in processing and increase the chance of errors. The January 24 start date gives the IRS a buffer to have most documents in hand before processing returns.

What you need to have ready before January 24

Gather your income documents as they arrive in January 2027. You will need your W-2 from your employer (or multiple W-2s if you worked for more than one employer), any 1099 forms for freelance income or interest, and records of deductions if you plan to itemize. If you received unemployment benefits, student loan interest statements, or education credits, collect those documents too.

If you own a business or rental property, organize your income and expense records before the filing window opens. Self-employed filers often take longer to prepare because they need to calculate their own tax liability. Having these documents sorted by mid-January means you can file as soon as January 24 without rushing.

You will also need your Social Security number, your spouse's Social Security number if filing jointly, and your bank account information if you want a refund deposited directly. If you are claiming dependents, have their Social Security numbers and birth dates ready.

Filing electronically versus filing by mail

Electronic filing is faster and more accurate. The IRS accepts e-filed returns starting January 24, 2027, and processes them within 21 days if you choose direct deposit. You can e-file through tax software, a tax professional, or the IRS Free File program if your income is below a certain threshold. The IRS Free File program is available through participating tax software companies at no cost.

If you file by mail, your return must be postmarked by April 20, 2027. Mail filing takes longer to process — typically four to six weeks — and the IRS cannot process it until after January 24. Mailed returns are also more prone to errors because the IRS must manually enter the information. If you file by mail and owe taxes, you still owe them by April 20 even if your return has not been processed yet.

What happens if you miss the April 20 important date

If you do not file by April 20, 2027, and you do not have an extension, the IRS charges a failure-to-file penalty. The penalty is usually 5 percent of the unpaid tax for each month or part of a month that the return is late, up to 25 percent. If you owe taxes and do not pay by April 20, you also owe interest on the unpaid amount, calculated daily from April 20 until you pay.

If you are due a refund, there is no penalty for filing late, but you will not receive your refund until you file. The IRS can hold refunds for up to three years if you do not claim them, so filing eventually is still important even if you are not in a hurry.

Requesting an extension before April 20 removes the failure-to-file penalty but does not remove the failure-to-pay penalty if you owe taxes. You must pay any taxes you expect to owe by April 20 to avoid the failure-to-pay penalty, even if you file the return itself later.

How to request a filing extension

You request an extension by filing Form 4868 with the IRS. You can file this form electronically through tax software, through a tax professional, or by mailing a paper copy. The form is straightforward — it asks for your name, address, Social Security number, and an estimate of your total tax liability and payments to date.

You do not need a reason to request an extension. The IRS grants all extension requests filed by April 20, 2027. If you file Form 4868 electronically, you receive confirmation when ready. If you mail it, send it early enough that it arrives by April 20.

Filing an extension gives you until October 20, 2027 to file your return, but you still owe any taxes due by April 20. If you cannot pay the full amount by April 20, pay what you can. The IRS charges interest on the unpaid balance, but paying something by the important date reduces the total interest you owe.

Frequently Asked Questions

Can I file my 2026 return before January 24, 2027?

No. The IRS will reject any 2026 return filed before January 24, 2027, even if it is complete and correct. You must wait until January 24 to file. If you use tax software, it will not let you submit a 2026 return before that date.

What if I do not receive my W-2 or 1099 by January 24?

You can file without it if you have the information from your employer or financial institution. Employers must send W-2s by January 31, 2027. If you do not have a document by then, contact the issuer. If you still cannot get it, you can file an amended return later once you receive it.

Do I have to file by April 20 if I am getting a refund?

You are not required to file by April 20 if you are due a refund, but you should file as soon as possible to receive your money. The IRS will not process your return until after January 24, and refunds typically arrive within 21 days of processing if you choose direct deposit.

What if April 20 falls on a weekend or holiday?

April 20, 2027 is a Tuesday, so it is a regular business day. If the important date fell on a weekend or federal holiday, the IRS would move it to the next business day. You can check the IRS website each year to confirm the exact important date.

Can I file my 2025 return after January 24, 2027?

Yes. You can file prior-year returns at any time, but the sooner you file, the sooner you receive any refund due. If you owe taxes on a prior year, filing late triggers penalties and interest. The IRS does not stop accepting prior-year returns, but processing them takes longer.