How will I know if there is something wrong with my tax return?

Asked by: Yesenia Mosciski  |  Last update: August 5, 2026
Score: 4.6/5 (7 votes)

You will know if there is a problem with your tax return primarily through official correspondence from the IRS (https://www.irs.gov/) or state tax agency, usually by mail. A delayed refund, unexpected changes to your refund amount, or status updates on the "Where's My Refund?" tool (https://www.irs.gov/refunds) often indicate errors like math mistakes, missing information, or identity verification requirements.

How will I know if there is an issue with my tax return?

Some tax returns need extra review for accuracy, completeness, and to protect taxpayers from fraud and identity theft. Extra processing time may be necessary. If you received a refund amount different than the amount on your tax return, we'll mail you a letter. Wait for that letter before you contact us.

How do I know if there is an error on my tax return?

If it is a math mistake, a wrong number is pulled from a chart, or a supporting form is missing, the IRS will send you a notice.

When to worry about tax refunds?

Your refund may also be delayed if numbers on your return don't match documents the IRS received about your income. Common mistakes can also cause delays, such as math errors or typos on your Social Security number, or if the direct deposit account doesn't match the filing status on your return.

Will I be notified if something is wrong with my tax return?

The IRS is considering changing an amount on your tax return, due to an examination after it processed your tax return. This is called an audit. If it audits your return, the IRS will notify you by mail, and the notice will tell you if the audit will be handled by mail or in person.

IRS WMR Status - We have received your tax return and it is Being Processed

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Should I be worried if my refund is still being processed?

You generally shouldn't worry if your refund is "still being processed," as it means the IRS is working on it, but it might take longer than the typical 21 days due to common issues like errors, incomplete information, or claiming credits like the EITC/ACTC. Worry only becomes necessary if you receive an IRS letter requesting more information or if the "Where's My Refund?" tool shows a specific problem like fraud, but typically, it just means a longer wait, not no refund at all. 

What are common reasons for refund delays?

What causes an IRS refund delay?

  • 6 Reasons for an IRS refund delay. ...
  • You took certain tax credits this tax year: ...
  • You have IRS debts: ...
  • The IRS flags an error: ...
  • The IRS suspects identity theft: ...
  • You need to file an old return: ...
  • You're under audit from a previous year:

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.

Will the IRS let you know if there is a problem?

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 will I know if my tax refund was not approved?

Use the IRS Where's My Refund tool or the IRS2Go mobile app to check your refund online. This is the fastest and easiest way to track your refund. The systems are updated once every 24 hours. You can contact the IRS to check on the status of your refund.

What are the most common errors on tax returns?

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  • Filing too early. While taxpayers should not file late, they also should not file prematurely. ...
  • Missing or inaccurate Social Security numbers (SSN). ...
  • Misspelled names. ...
  • Entering information inaccurately. ...
  • Incorrect filing status. ...
  • Math mistakes. ...
  • Figuring credits or deductions. ...
  • Incorrect bank account numbers.

Why is it taking so long to approve my refund?

A tax refund could be delayed weeks or even months in some cases. The length of the delay may depend on how backed up the IRS is on processing tax returns, whether you turn around requested documentation quickly, and whether you need to file an amended return.

What happens if there is an issue with my tax return?

If you realize there was a mistake on your return, you can amend it using Form 1040-X, Amended U.S. Individual Income Tax Return. For example, a change to your filing status, income, deductions, credits, or tax liability means you need to amend your return.

Where's my refund keeps saying wrong information?

IRS mismatches often occur due to discrepancies between your tax return and IRS records, potentially caused by outdated personal information, transcription errors, or third-party mistakes. Resolving a mismatch requires reviewing your information, correcting any mistakes, and possibly filing an amended return.

What is the IRS $10,000 rule?

The IRS "10k rule" primarily refers to the requirement for businesses and financial institutions to report cash transactions over $10,000 by filing Form 8300 (for businesses) or a Currency Transaction Report (CTR) (for banks), under the Bank Secrecy Act. This rule helps combat money laundering, tax evasion, and terrorist financing, requiring reporting for single transactions or related transactions totaling over $10,000 in cash within a year, with penalties for non-compliance.

How do you avoid the 22% tax bracket?

To avoid the 22% tax bracket (or any higher bracket), focus on reducing your taxable income through strategies like maxing out 401(k)s and HSAs, deferring bonuses, tax-loss harvesting, smart charitable giving, and strategic asset location, understanding that higher rates only apply to income within that bracket, not your entire income.

How will I know if my refund is flagged?

Taxpayers whose tax returns have been flagged for possible identity theft should receive one of the following letters: Letter 5071C, Potential Identity Theft during Original Processing with Online Option – Provides online and phone options and is issued most widely.

What is the longest a tax refund can take?

There's no strict maximum limit for how long the IRS can hold a refund, but they must pay interest after 45 days; while most e-filed returns take 21 days, returns needing extra review for errors, fraud, or certain credits (like EITC/ACTC) can take months (45-180+ days), and amended returns can take 8-16 weeks, with unfiled returns having an indefinite delay until filed. 

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.

What is the IRS one time forgiveness?

One-time forgiveness, officially known as First-Time Penalty Abatement (FTA), is an IRS program that allows qualified taxpayers to have certain penalties removed from their tax accounts.

How do you know if you're in trouble with the IRS?

Should your account be selected for audit, we will notify you by mail. We won't initiate an audit by telephone. Assistance is available to help you understand the letter/notice received: Understanding your IRS notice or letter.