Timeline for an amended return refund
An amended return refund typically takes 8 to 12 weeks from the date the IRS receives your Form 1040-X, though it can stretch to 16 weeks or longer depending on the complexity of your changes and current IRS processing volume. The IRS does not process amended returns faster than original returns, and they cannot expedite the timeline even if you need the money urgently.
The clock starts when your amended return arrives at the IRS service center, not when you mail or e-file it. If you mail a paper Form 1040-X, add 1 to 2 weeks for postal delivery before processing begins. If you e-file through tax software or a tax professional, processing typically begins within 24 hours of transmission.
The IRS will not issue your refund until they have reviewed your entire amended return, verified the changes against your original return and supporting documents, and confirmed that the math is correct. If anything on your amended return does not match IRS records or raises a question, they will hold the refund and send you a letter asking for more information — which adds another 4 to 8 weeks to the timeline.
Key Takeaways
- Most amended return refunds arrive between 8 and 12 weeks after the IRS receives your Form 1040-X, though some take up to 16 weeks.
- E-filing your amended return starts the clock faster than mailing a paper form, which can add 1 to 2 weeks for postal delivery.
- The IRS will hold your refund if anything on your amended return does not match their records or if they need clarification, which typically adds 4 to 8 weeks.
- You can check the status of your amended return using the IRS Where's My Amended Return tool on IRS.gov, which updates every 24 hours.
- If your amended return is delayed beyond 16 weeks, you can contact the IRS Taxpayer Advocate Service for help, though they cannot speed up processing.
Why amended returns take longer than original returns
The IRS processes amended returns in a separate queue from original returns, and that queue moves more slowly. An original return filed on time takes 21 days to process if you e-file and choose direct deposit. An amended return, even if e-filed, goes through a manual review process because a human reviewer must compare your original return to your amended return, verify that your changes are correct, and confirm that you are not claiming something twice.
Amended returns also require the IRS to cross-check your changes against third-party documents they have on file — W-2s from your employer, 1099s from banks or investment firms, mortgage interest statements, and so on. If any of those documents do not match what you reported on your amended return, the IRS will flag it and ask you to explain the discrepancy before they release your refund.
The volume of amended returns the IRS is processing also affects your timeline. During tax season (January through April), amended returns can take longer because the IRS is simultaneously processing millions of original returns. If you file an amended return in May or later, processing may be faster because the original return rush has passed.
How to track your amended return status
The IRS offers a tool called Where's My Amended Return on IRS.gov. You can access it by logging into your IRS account or by entering your Social Security number, filing status, and the exact refund amount from your amended return. The tool updates every 24 hours and will show you whether your return has been received, is under review, or has been processed.
The tool will display one of four statuses: "Return Received" (the IRS has your amended return but has not started reviewing it), "Under Review" (the IRS is checking your changes), "Approved" (the IRS has approved your amended return and your refund is being prepared), or "Refund Issued" (your refund has been sent). Once your refund is issued, the tool will tell you the date it was sent and the method of delivery — direct deposit or check.
If the tool shows "Under Review" for longer than 12 weeks, or if it stops updating, contact the IRS at 800-829-1040 to ask whether your return is held up waiting for additional information. Have your Social Security number, filing status, and the date you filed your amended return ready when you call.
What causes delays in amended return processing
The most common reason for a delay is a mismatch between what you reported on your amended return and what the IRS has on file from third-party sources. For example, if you amended your return to claim a deduction your employer did not report on your W-2, or if you reported investment income that does not match a 1099-B from your brokerage, the IRS will hold your refund and send you a letter asking you to explain or provide documentation.
Another frequent cause of delay is an error in the math on your amended return. If your Form 1040-X does not add up correctly, or if the refund amount you calculated does not match the IRS's calculation, they will correct it and send you a letter explaining the change. This process typically takes 4 to 8 weeks.
If you amended your return because you claimed a tax credit you had not claimed before — the Earned Income Tax Credit, the Child Tax Credit, or the American Opportunity Credit — the IRS may hold your refund for additional review. These credits are subject to heightened verification, and the IRS may ask you to provide documentation proving you meet the requirements for the credit.
Amended returns filed during the peak tax season (January through March) also tend to take longer because the IRS is managing a backlog of original returns at the same time. Filing your amended return in April or later may result in faster processing, though the 8 to 12 week timeline still applies.
Direct deposit versus check delivery for your refund
If you chose direct deposit on your amended return, your refund will be deposited into the bank account you specified. Direct deposit typically takes 1 to 3 business days after the IRS issues your refund, so the total timeline is 8 to 12 weeks for IRS processing plus 1 to 3 days for your bank to receive and post the deposit.
If you did not provide banking information on your amended return, or if you requested a check, the IRS will mail a paper check to the address on file. A mailed check typically arrives 7 to 10 business days after the IRS issues it, so the total timeline is 8 to 12 weeks for IRS processing plus 7 to 10 days for postal delivery. If your check does not arrive within 10 business days of the issue date shown on the Where's My Amended Return tool, contact the IRS to report it as lost.
You can change your delivery method after you file your amended return only if the IRS has not yet issued your refund. If your amended return is still under review, you can call the IRS at 800-829-1040 and ask them to add or update your banking information so your refund will be direct deposited instead of mailed. Once your refund has been issued, you cannot change the delivery method.
What to do if your amended return is delayed beyond 16 weeks
If your amended return has been under review for more than 16 weeks, or if the Where's My Amended Return tool has not updated in more than 30 days, you can contact the IRS Taxpayer Advocate Service for help. The Taxpayer Advocate Service is an independent office within the IRS that can investigate delays and request that your case be prioritized, though they cannot force the IRS to process your return faster than the normal timeline.
To reach the Taxpayer Advocate Service, call 877-777-4778 or visit taxpayeradvocate.irs.gov. You will need your Social Security number, the date you filed your amended return, and documentation showing that you have already contacted the IRS about the delay. The Taxpayer Advocate Service can also help if the IRS sent you a letter asking for additional information and you are unsure how to respond.
If the IRS has held your refund because they believe you owe a debt to another federal agency — such as unpaid student loans or child support — your refund will be offset to pay that debt. This process can add several weeks to your timeline. You can check whether your refund has been offset by calling the IRS or by checking the status tool, which will indicate if your refund was reduced or redirected.
Frequently Asked Questions
Can I speed up my amended return by paying a tax professional to file it?
No. The IRS processes amended returns at the same pace regardless of who files them — a tax professional, tax software, or you filing on your own. The only advantage to using a professional is that they are less likely to make errors that would cause the IRS to hold your refund for review. An error-free amended return may process slightly faster because it requires less manual review.
What if I filed my amended return and then realized I made another mistake?
You can file a second amended return (Form 1040-X) to correct the new mistake, but you should wait until the IRS has processed your first amended return. Filing multiple amended returns for the same tax year can trigger additional IRS review and may delay your refund further. If you catch the mistake before the IRS processes your first amended return, contact the IRS to ask whether you can withdraw it and file a corrected version instead.
Will I get interest on my amended return refund if it takes longer than 45 days?
Yes. If the IRS takes longer than 45 days to issue your refund after you file your amended return, you are may have access to to interest on the refund amount. The interest rate is set by the IRS and changes quarterly. The IRS will automatically calculate and include the interest when they issue your refund — you do not need to request it.
Can I file an amended return if I have not yet received my original refund?
Yes, but it can complicate things. If you file an amended return before the IRS has processed your original return, the IRS may process both returns separately, which can delay your refund further. If possible, wait until your original refund has been issued before filing your amended return. You can check the status of your original return using the IRS Where's My Refund tool.
What happens if the IRS denies part of my amended return?
If the IRS disallows a deduction or credit you claimed on your amended return, they will send you a letter explaining the reason and showing the revised refund amount. You will have the right to dispute the decision by responding to the letter within the timeframe specified. If you disagree with the IRS's decision, you can file a formal appeal or take your case to Tax Court, though both processes take additional time and may require professional help.