Your refund is delayed because the IRS is reviewing your return for accuracy, or because you made an error on your filing
The IRS does not approve refunds on a first-come, first-served basis. After you file, the agency runs your return through automated checks that look for math errors, mismatched income reports, and claims that don't align with what employers and banks reported to them. If something flags, your return moves into a queue for manual review instead of processing on the standard timeline. This review can take weeks or months depending on the complexity of the issue and the current volume of returns the IRS is working through.
The most common reasons for delay are: you claimed a credit you don't meet the income threshold for, you reported income that doesn't match what your employer or bank reported to the IRS, you have an outstanding tax debt from a prior year, or you filed a paper return instead of electronically. Some delays are also straightforward timing—the IRS processes returns in waves, and yours may not have reached the review stage yet even if no error exists.
You can check the status of your specific return using the IRS "Where's My Refund?" tool on IRS.gov, which updates once per day. The tool will tell you whether your return is still being processed, whether it's been approved and is in the payment stage, or whether there's a problem that requires action from you.
Key Takeaways
- The IRS automatically flags returns for review if income doesn't match employer or bank records, if you claimed credits you may not may have access to for, or if you owe back taxes from prior years.
- Paper returns take longer to process than electronic returns because they must be manually entered into the IRS system before review can begin.
- You can check your return status daily using the IRS "Where's My Refund?" tool, which tells you whether your return is still processing, approved, or flagged for action.
- If the IRS needs information from you, they will mail a letter to the address on your return; you do not need to contact them first.
- Standard processing takes 21 days from the date you filed, but returns flagged for review can take several weeks or months longer.
What happens during the automated review stage
When you file your return, the IRS first runs it through a series of automated checks. These checks compare the income you reported against what your employer reported on your W-2, what your bank reported on interest and dividend statements, what your mortgage lender reported on your 1098, and what you reported in prior years. The system also verifies that any credits you claimed—like the Earned Income Tax Credit or the Child Tax Credit—match your income, filing status, and dependent information.
If everything matches and no red flags appear, your return moves into the payment queue and you receive your refund within the standard 21-day window. If something doesn't match or a claim looks unusual, the return is pulled out of the automated queue and sent to a human reviewer at an IRS processing center. This is where the delay happens.
You will not receive a notice during this stage unless the IRS needs you to provide additional information. The "Where's My Refund?" tool will show your return as "still processing" or "being reviewed" during this time.
Common issues that trigger manual review
Income mismatches are the most frequent cause of delay. If you reported $50,000 in income but your W-2 shows $52,000, or if you reported self-employment income that doesn't match what a 1099 form shows, the IRS will flag this for review. The reviewer will determine whether the discrepancy is a filing error on your part, an error on the employer's part, or unreported income you forgot to include.
Claimed credits that don't align with your income or filing status also trigger review. If you claimed the Earned Income Tax Credit but your income is above the threshold for your filing status, or if you claimed the Child Tax Credit but didn't provide a valid Social Security number for the dependent, the return goes to manual review. The same applies if you claimed the American Opportunity Credit or Lifetime Learning Credit but don't meet the income limits.
Prior-year tax debt is another common flag. If you owe taxes from 2021 or earlier, the IRS will hold your current refund to offset that debt. This is called "offset" and is automatic—you will receive a notice in the mail explaining the offset, but your refund will not be released until the prior debt is resolved.
Paper returns also cause delays, though not because of an error on your part. When you mail in a paper return, an IRS employee must manually enter your information into the system before any processing can begin. This data entry step alone can add two to four weeks to your timeline.
How long manual review actually takes
There is no fixed timeline for manual review. The IRS publishes a standard 21-day processing window, but that applies only to returns that pass automated checks without flags. Returns sent to manual review can take anywhere from two weeks to several months, depending on the complexity of the issue and the current workload at the IRS processing center handling your return.
straightforward issues—like a math error or a mismatched income figure that the reviewer can verify against existing documents—may be resolved in two to three weeks. More complex issues, like a dispute over whether you meet the income threshold for a credit or whether a dependent claim is valid, can take six to eight weeks or longer. During peak tax season (March through May), backlogs can extend timelines further.
The "Where's My Refund?" tool will not give you a specific date, but it will tell you whether your return is still in review or has moved to the approval stage. Once approved, the tool will show an expected payment date, which is typically within five to seven business days of approval.
What to do if your return has been in review for more than 60 days
If your return shows as "still processing" or "being reviewed" after 60 days from the date you filed, you can contact the IRS to ask for a status update. Call the IRS at 1-800-829-1040 (the main customer service line) and have your Social Security number, filing status, and the exact refund amount ready. The representative can tell you whether your return is still in the queue or whether the IRS has sent you a notice requesting additional information.
Check your mail carefully during this period. If the IRS needs information from you—such as proof of a dependent's Social Security number, documentation of business expenses, or clarification on income—they will send a letter called a "Notice of Proposed Adjustment" or similar. This letter will explain what information they need and give you a important date to respond, usually 30 days. If you miss the important date, the IRS will make a information without your input, which may result in a smaller refund or no refund at all.
If you have not received a notice and the tool shows no update after 60 days, the IRS may have lost your return or encountered a processing error. In this case, you can file a complaint with the Taxpayer Advocate Service, which is an independent office within the IRS that helps resolve disputes and processing problems. You can reach them at 1-877-777-4778 or through their website at taxpayeradvocate.irs.gov.
How to avoid delays on future returns
File electronically instead of by mail. Electronic returns are processed faster and have fewer errors because the IRS system catches math mistakes and missing information before the return is submitted. If you file by mail, your return will not even enter the system for two to four weeks.
Double-check that all income figures on your return match the W-2s, 1099s, and other documents you received from employers, banks, and other payers. If you see a discrepancy before you file, contact the payer and ask them to issue a corrected form. If you discover a mismatch after filing, you can file an amended return (Form 1040-X) to correct it, though this will also trigger manual review.
Verify that you meet the income and filing-status requirements for any credits you claim. The IRS website has income-limit charts for each major credit. If you are close to the limit, it is safer to not claim the credit than to claim it and have your return flagged for review.
Provide valid Social Security numbers for all dependents you claim. The IRS cross-checks these numbers against Social Security Administration records, and mismatches or invalid numbers will trigger a review.
Frequently Asked Questions
Can I get my refund faster if I call the IRS?
No. Calling the IRS will not speed up processing. The representative can tell you the current status of your return and whether the IRS has sent you a notice, but they cannot move your return ahead in the queue or approve it early. The only way to speed up processing is to respond quickly if the IRS sends you a notice requesting additional information.
What if the IRS says I owe money instead of getting a refund?
This can happen if the IRS discovers unreported income or disallows a credit you claimed. If this occurs, the IRS will send you a notice explaining the reason and the amount you owe. You have the right to dispute the information by responding to the notice within 30 days. If you disagree, you can request an appeals conference or file a claim in Tax Court.
Does filing an amended return make the delay worse?
Yes. An amended return (Form 1040-X) goes through the same manual review process as a flagged original return, and it adds time because the IRS must compare your amended version against your original filing. Only file an amended return if you made a significant error that affects your refund amount or tax liability.
Why does the IRS hold refunds for prior-year debt?
The IRS is legally required to offset current refunds against prior-year tax debt. This is called "tax offset" and is automatic. If you owe taxes from a prior year, the IRS will explore your current refund to that debt first. You will receive a notice in the mail explaining the offset and the remaining balance, if any, that you still owe.
Can I get my refund as a direct deposit instead of a check?
Yes, if you filed electronically and provided your bank account information on your return. Direct deposit is faster than a mailed check—typically five to seven business days after approval instead of two to three weeks. If you filed by mail and did not provide banking information, you will receive a check by mail.