How do I know if my taxes have been flagged?

Asked by: Chaim Corkery Sr.  |  Last update: May 17, 2026
Score: 4.7/5 (9 votes)

The IRS (.gov) will notify you by mail if your tax return is flagged for review or audit; they do not initiate audits by telephone. Common indicators include receiving specific letters (such as 5071C, 4883C, or CP05) regarding identity verification or income discrepancies, significant refund delays, and a "review" status on the IRS "[IRS (.gov) Where's My Refund]" tool.

How do I know if the IRS flagged my tax return?

Taxpayers whose tax returns have been flagged for possible IDT 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.

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.

What will flag your tax return?

Too many deductions taken are the most common self-employed audit red flags. The IRS will examine whether you are running a legitimate business and making a profit or just making a bit of money from your hobby. Be sure to keep receipts and document all expenses as it can make things a bit ore awkward if you don't.

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. 

Was Your Tax Return Flagged - 5 Reasons for an International Tax Audit

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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. 

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.

How do I know if I'm being audited?

The IRS performs audits by mail or in person. The notice you receive will have specific information about why your return is being examined, what documents if any they need from you, and how you should proceed. Once the IRS completes the examination, it may accept your return as filed or propose changes.

Are you notified before your taxes are garnished?

The IRS has more garnishment power than ordinary creditors. Before the IRS starts to garnish your wages, they must follow specific guidelines and send you two notices at least 30 days before the garnishment begins.

How do I know if my tax return was intercepted?

At the time of the tax refund offset, Treasury's Bureau of the Fiscal Service mails a Notice of Offset to the noncustodial parent stating that all or part of their federal tax refund has been intercepted. The Notice also provides direction on contacting the child support agency for further information.

When your check is garnished, is it before or after taxes?

Does garnishment come out before taxes? No, wage garnishments are withheld from disposable earnings, which means all requisite taxes – income tax, Social Security tax, Medicare tax, etc. – are deducted prior to calculating garnishments.

Can your refund be flagged after being accepted?

The IRS uses automated systems to screen all returns, and yours can be flagged for review long after you've received a refund. Common triggers include unreported income, unusually high deductions, or mismatched information from W-2s and 1099s.

How much money is flagged by the IRS?

Who must file. Generally, any person in a trade or business who receives more than $10,000 in cash in a single transaction or in related transactions must file a Form 8300.

What is the $600 rule in the IRS?

The IRS $600 rule refers to a change in reporting requirements for third-party payment apps (like Venmo, PayPal) for taxable income from goods and services, where platforms must send a Form 1099-K if you receive over $600 in a year, intended to capture gig economy/side hustle income, though delays and phased implementation have adjusted the timeline, with current rules for 2024 using a higher threshold ($5,000) before fully phasing to $600 for future years, but remember all taxable income, regardless of form, must always be reported.
 

What could be holding up my tax refund?

There are many reasons why the IRS may be holding your refund. You have unfiled or missing tax returns for prior tax years. The check was held or returned due to a problem with the name or address. You elected to apply the refund toward your estimated tax liability for next year.

What happens if a refund is more than $50,000?

Many are wondering if the Income Tax Department delays processing refunds if the refund amount is large, such as over Rs 50,000. According to income tax rules, there is no upper limit on refunds. Whether your refund is Rs 10,000 or Rs 1 lakh or even greater, it will be credited the same way.

How long can the IRS legally take to process 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.

What is the maximum time for refund processing?

Usually, it takes 4-5 weeks for the refund to be credited to the account of the taxpayer. However, if refund is not received during this duration, the taxpayer must check for intimation regarding discrepancies in ITR; check email for any notification from the IT department regarding the refund.

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:

What looks suspicious to the IRS?

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. The IRS mostly audits tax returns of those earning more than $200,000 and corporations with more than $10 million in assets.

Will you be notified if you are under investigation?

The government has no legal obligation to notify you that you're under investigation. There is no constitutional right to know that prosecutors are building a case against you.

How do you know if your tax refund is being audited?

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.