Why is my IRS letter saying they are reviewing my return?

Asked by: Kayleigh Strosin  |  Last update: July 24, 2026
Score: 4.6/5 (72 votes)

An IRS letter stating your return is under review means they are verifying information for accuracy, such as income, tax credits, or deductions (e.g., Earned Income Tax Credit), often because it didn't match W-2s or 1099s. It does not necessarily mean you made an error or are being audited.

Why did I get a letter from the IRS saying they are reviewing my taxes?

If the IRS is reviewing your return, it may have questions about your wages and withholding, or credits or expenses shown on your tax return. The review process could take anywhere from 45 to 180 days, depending on the number and types of issues the IRS is reviewing.

Why would the IRS review my tax return?

The IRS occasionally reviews past tax forms to see if there are any substantial errors. If they find you have a gross error that contributed to a refund, they will audit you and come after the money you now owe.

What does it mean when your tax refund is being reviewed?

The IRS reviews some federal tax returns to determine if income, expenses, and credits are reported accurately. The IRS selects returns for review using various methods; including random sampling, computerized screening, and comparison of information received by the IRS such as Forms W-2 and 1099.

How long does it take the IRS to review your refund?

Processing your refund usually takes: Up to 21 days for an e-filed return. 6 weeks or more for returns sent by mail. Longer if your return needs corrections or extra review.

Received an IRS Letter in the Mail? Here's What To Do

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Why is it taking so long for the IRS to review my taxes?

Errors in your tax return calculations can cause delays as the IRS may need to correct them. A mismatch between your Social Security Number and the records can significantly delay your refund. Filing your tax return too early or too late can lead to delays due to IRS system updates or high processing volumes.

How long does a refund review take?

– Receiving a paper refund check in the mail may take longer than choosing direct deposit. Most e-filed returns are processed within 21 days. – Paper-filed returns generally take 6 to 8 weeks for the IRS to process and send your refund.

Is an IRS review the same as an audit?

You may face an IRS audit after an IRS review. If the IRS reviews your information and detects inaccuracies in your tax returns, it may conduct a comprehensive audit to look into the matter further.

Can I speed up my IRS refund review?

What should I do? Request an expedited refund by calling the IRS at 800-829-1040 (TTY/TDD 800-829-4059). Request a manual refund expedited to you.

Why is IRS randomly selected for review?

District offices select returns randomly sometimes for special research programs, but generally the returns are selected because they have good audit potential. The potential is discovered by a computerized system called the Discriminant Function System (DIF). In most cases, the decisionmaker is not the auditor.

What does refund reviewed mean?

The stages of an IRS refund are: (1) Return Received, where the IRS acknowledges receipt of your return; (2) Return Reviewed, where the return is checked for accuracy; and (3) Refund Approved/Sent, where the refund amount is finalized and issued.

What are common red flags for the IRS?

IRS Audit Red Flags 2023: 25 Tax Return Audit Risk Factors

  • Wrong Name or Social Security Number.
  • Incomplete or Missing Information.
  • Math Errors.
  • Amended Returns.
  • Too Many Zeros.
  • Repeated End Numbers.
  • You Have Been Audited Before.
  • You Use An Unscrupulous Tax Preparer.

What is the difference between an audit and review?

The report after a review is not considered to provide a professional opinion about the nonprofit's financial statements as a whole. The key difference between an audit and a review is that conducting an audit requires the auditor to obtain independent confirmation or verification of the financial information examined.

What are common reasons for IRS reviews?

Common IRS audit triggers

  • Making math errors.
  • Failing to report income.
  • Claiming too many charitable donations.
  • Reporting too many losses on a Schedule C.
  • Deducting too many business expenses.
  • Claiming a home office deduction.
  • Using nice, neat, round numbers.

Is it always bad news when you get a letter from the IRS?

Getting a letter from the IRS can make some taxpayers nervous – but there's no need to panic. The IRS sends notices and letters when it needs to ask a question about a taxpayer's tax return, let them know about a change to their account or request a payment.

How do you know if the IRS is investigating you?

You know the IRS might be investigating you through official mail (first contact), phone calls (often with automated messages to IRS.gov), or in-person visits, but signs of a criminal probe include contact with IRS Criminal Investigation (CI) agents, subpoenas to you or your bank, questions to your accountant/bank, unusual account activity (freezing/refusing transactions), or agents suddenly going silent after an audit. Key indicators are official IRS letters, contact from CI special agents, third-party inquiries, and formal summonses for records, signaling serious scrutiny beyond a simple audit. 

What triggers an IRS refund review?

The IRS uses a combination of automated and human processes to select which tax returns to audit. Not reporting all of your income is an easy-to-avoid red flag that can lead to an audit. Taking excessive business tax deductions and mixing business and personal expenses can lead to an audit.

How long can a tax refund be under review?

The IRS has no maximum time limit when it comes to processing tax refunds, but after 45 days, it is required to pay interest on your refund. In most cases, you can expect the IRS to issue your tax refund within 21 days of filing your tax return.

Why is it taking so long for the IRS to review my tax return?

Errors on or Incomplete Tax Returns: Your refund may be delayed for something as simple as a forgotten signature, mathematical errors or if the income reported by you doesn't match what your employer or other third-party payers have reported.

Why is IRS still reviewing my refund?

You took certain tax credits this tax year:

The IRS may need additional documentation to verify eligibility for these credits. If the IRS doesn't think you're eligible to claim the credits based on its return screening filters, it can delay your refund and ask for more information.

Why does my tax return say under review?

This notice lets you know that your return is being reviewed to verify any or all of the following: Your income. Your tax withholding. Tax credits you claimed on your return.

How long does it take to get a tax refund after review?

According to the IRS, most refunds are funded within 21 days of filing. However, you may receive your refund at a different time depending on how you choose to receive it or if IRS finds issues with accuracy, such as reconciling the amount of stimulus payment or advanced child tax credit received in 2021.

Does the IRS make mistakes on refunds?

Refunds lower because of mathematical errors

Your tax refund may be lower because of a mistake on your tax return. If that happens, the IRS will correct the return. The agency should send you a letter explaining why the amount is different from what you expected.