The IRS began accepting 2024 tax returns on January 29, 2024

The IRS opened its systems to receive 2024 tax year returns on January 29, 2024. This is the official start date each year — before this date, tax software will not let you file, and the IRS will not accept returns, even if you file by mail. The IRS processes returns in the order they arrive after this date, not in the order they were prepared.

Processing speed depends on how you file. Returns filed electronically (through tax software or a tax professional) typically process within 21 days if there are no errors or missing information. Paper returns take much longer — the IRS estimates 4 to 6 weeks for initial processing, though some paper returns take several months because they must be manually entered into the system.

If you file early in the filing season, you will likely receive your refund sooner than if you file in March or April, when the IRS is processing millions of returns simultaneously. However, the IRS does not process returns faster for early filers — it simply has fewer returns in the queue.

Key Takeaways

  • The IRS began accepting 2024 returns on January 29, 2024, and this is the earliest date you can file for that tax year.
  • Electronic returns typically process within 21 days if complete and accurate, while paper returns take 4 to 6 weeks or longer.
  • The IRS processes returns in the order received, so filing earlier in the season usually means a faster refund, not because of priority but because fewer returns are ahead of yours.
  • Refunds are delayed if your return contains errors, missing information, or if the IRS needs to verify your identity or income.

How the IRS processes returns after the filing season opens

Once the IRS begins accepting returns, it processes them continuously throughout the filing season, which runs through April 15. The IRS does not batch returns or process them on a weekly schedule — they enter the system as they arrive and move through verification checks in real time.

When you file electronically, your return goes through automated checks first. The IRS verifies that your Social Security number matches IRS records, that your income matches W-2s and 1099s already filed by employers, and that your refund amount is reasonable given your income. If all checks pass, your return moves to the approval stage. If something does not match, your return is flagged for manual review, which adds weeks to processing.

Paper returns skip the automated checks because they must be manually entered into the IRS system first. A clerk types your return data into the computer, which then runs the same verification checks as electronic returns. This manual entry step is why paper returns take so much longer.

Why some returns take longer than 21 days

The IRS publishes a 21-day estimate for electronic returns, but this assumes your return is complete and passes all automated checks on the first try. Several situations cause delays beyond this window.

If your return claims a refund larger than expected based on your income, the IRS may hold it for additional review. If you claim the Earned Income Tax Credit (EITC) or the Additional Child Tax Credit (ACTC), the IRS is required by law to hold your entire refund until at least February 15, even if your return is otherwise complete and accurate. This is called the EITC holding period, and it applies every year.

If your Social Security number does not match IRS records, if you claim dependents the IRS cannot verify, or if your return shows income that conflicts with documents the IRS has already received from your employer, your return goes to a manual examiner. These reviews typically take 4 to 8 weeks. If the IRS suspects identity theft or fraud, the review can take several months.

When to expect your refund after processing

Once the IRS approves your return, it sends your refund to your bank or the address you provided on your return. If you chose direct deposit, the refund typically arrives within 1 to 2 business days after the IRS approves your return. If you requested a paper check, it takes 7 to 10 business days after approval.

The IRS does not mail refund checks on weekends or federal holidays, so timing depends partly on the calendar. A refund approved on a Friday will not be mailed until Monday. A refund approved the day before a holiday will not be mailed until after the holiday.

You can track your refund status using the IRS "Where's My Refund?" tool on the IRS website. This tool updates once per day, usually overnight. It will show you the status of your return (received, approved, or sent) and an estimated arrival date if your refund has been approved.

What happens if you file before January 29

If you file your 2024 return before January 29, 2024, the IRS will reject it. Tax software will prevent you from submitting it electronically, and if you mail a paper return, the IRS will hold it until January 29 and then process it with all the other returns received that day.

Some people file early by accident — they prepare their return in tax software and submit it without checking the date. If this happens to you, you do not need to do anything. The IRS will simply hold your return and process it starting January 29. You will not be penalized or charged a fee.

If you need to file before the official opening date because you expect a large refund or have other time-sensitive reasons, you can prepare your return and have it ready to submit the moment the IRS opens. Some tax software lets you schedule a return to submit automatically at a specific time on January 29.

Paper returns versus electronic returns: processing timelines

The difference in processing time between electronic and paper returns is substantial. An electronic return that passes all automated checks can be approved and refunded within 21 days. A paper return for the same person, with the same information, will take at least 4 to 6 weeks because of the manual data entry step.

Paper returns also have a higher error rate during manual entry, which can trigger additional review. If a clerk misreads a number or transposes digits, your return may be flagged for verification, adding another 2 to 4 weeks. Electronic returns do not have this risk because you enter your own data.

If you have the option to file electronically, doing so will result in a faster refund. Even if you use a tax professional to prepare your return, ask them to file it electronically rather than on paper.

How identity verification delays affect processing

If the IRS cannot verify your identity, it will hold your return and send you a letter asking for additional documentation. This typically happens if you have not filed in several years, if your address has changed, or if the IRS suspects identity theft.

When you receive an identity verification letter, you must respond within 30 days. You will be asked to provide a copy of your driver's license, passport, or other government-issued ID, and sometimes proof of your current address. Once the IRS receives and verifies these documents, it will process your return, but this adds 4 to 8 weeks to the overall timeline.

If you receive an identity verification letter, do not ignore it. The IRS will not process your return or issue your refund until you respond. If you do not respond within 30 days, the IRS may deny your return and you will have to file an amended return later.

Frequently Asked Questions

Can I file my 2024 return before January 29, 2024?

No. The IRS does not accept 2024 returns before January 29, 2024. Tax software will block you from submitting electronically, and paper returns mailed before that date will be held by the IRS until January 29. You can prepare your return in advance, but you cannot submit it until the filing season officially opens.

Why does the IRS hold refunds for EITC claims?

Federal law requires the IRS to hold refunds for returns claiming the Earned Income Tax Credit or Additional Child Tax Credit until at least February 15. This holding period applies even if your return is complete and accurate. The IRS uses this time to verify that you meet the income and dependent requirements for these credits.

How do I check the status of my refund?

Use the IRS "Where's My Refund?" tool on the IRS website. Enter your Social Security number, filing status, and refund amount. The tool updates once per day and shows whether your return has been received, approved, or sent. If your refund has been approved, it will show an estimated arrival date.

What should I do if my refund does not arrive within 21 days?

First, check the "Where's My Refund?" tool to see if your return is still being processed. If the tool shows your refund was approved and sent more than 7 days ago (for direct deposit) or 10 days ago (for a check), contact the IRS at 1-800-829-1040. Have your Social Security number, filing status, and expected refund amount ready.

Do I need to do anything if the IRS rejects my return?

If your return is rejected before processing, the IRS will send you a notice explaining why. Common reasons include a missing signature, an incorrect Social Security number, or a math error. Follow the instructions in the notice to correct the error and resubmit your return. You will not be penalized for a rejected return.