What IRS errors delay refunds?

Asked by: Mr. Jovany Lueilwitz  |  Last update: July 18, 2026
Score: 4.1/5 (60 votes)

IRS refund delays are commonly caused by mathematical errors, incorrect Social Security numbers, misspelled names, and mismatched bank routing information. Filing paper returns, claiming specific tax credits (EITC/ACTC), and neglecting to sign the return also trigger significant processing delays.

What causes IRS refund delays?

Unallowable Deductions: Refunds may be delayed or reduced if the taxpayer claims deductions that are clearly unallowable. First-Time Filers: A taxpayer who has not filed a tax return as either a primary or secondary filer in the previous ten years is considered a first-time filer, and this can lead to delays.

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. 

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.

Why are income tax refunds delayed?

Income tax refund delays often stem from errors or incomplete information (like incorrect SSNs or bank details), identity theft/fraud checks, claims for certain credits (EITC, ACTC), or needing to verify income matching IRS records, with paper returns and past-due filings also slowing things down. The IRS needs extra time to resolve discrepancies, conduct reviews, or process complex forms like Form 8379, extending the usual 21-day electronic refund period. 

These tax errors could delay your refund

42 related questions found

Why has my refund not been approved yet?

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.

What's the longest the IRS can take to refund after?

The IRS doesn't have a strict maximum time limit for issuing refunds, but generally processes e-filed returns with direct deposit within 21 days, while paper returns take 6 weeks or more, with longer waits for those claiming certain credits (EITC/ACTC) or if errors occur. If the IRS holds your refund for more than 45 days past the tax deadline (or filing date if late), they owe you interest, but significant delays (months) can happen for complex issues or extra reviews, sometimes requiring a mailed notice. 

What are the most common errors on tax returns?

More In News

  • 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.

How often does IRS.gov update refund status?

The IRS only updates your refund status information once per week on Wednesdays.

Does the IRS always catch mistakes on tax returns?

The IRS does not check every tax return. It does not check the majority of them, but the IRS implements methods that track certain factors that would result in a further examination or audit by them.

Why is my tax refund taking so long to be approved in 2025?

The main 2025 tax refund delay reasons include errors or incomplete information on returns, claims for the Earned Income Tax Credit or Additional Child Tax Credit, identity verification processes, amended returns, and offsets for outstanding debts. Paper returns and bank processing times can also contribute to delays.

How do I know if my tax return has been flagged?

If the IRS decides that your return merits a second glance, you'll be issued a CP05 Notice 1 . This notice lets you know that your return is being reviewed to verify any or all of the following: Your income. Your tax withholding.

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 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 if it's been longer than 21 days and no refund?

Contact the IRS if: It's been 21 days or more since you e-filed.

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.

What day of the week does the IRS usually issue refunds?

The IRS issues refunds only on business days. However, some banks may post deposits on Saturdays if funds are received late on a Friday.

How long does it take the IRS to approve your refund after it's been accepted?

The IRS states that 9 out of 10 refunds are processed within 21 days from the date the return is accepted.

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

Different amount: If the refund isn't the amount you expected, you should receive a notice explaining why. If you don't receive a notice or you believe the IRS changed your refund incorrectly, contact the IRS or order a transcript to find out about any IRS changes.

What are the most common errors?

The most common misspellings today are those that spell checkers cannot identify. Spell checkers are most likely to miss homonyms, compound words incorrectly spelled as separate words, and proper nouns, particularly names. After you run the spell checker, proofread carefully for errors such as these.

Why is the IRS taking so long to process my refund in 2025?

Income tax refund delays in 2025 (for the 2024 tax year) happen due to errors, fraud protection, claiming specific credits like EITC/ACTC (held until mid-Feb by law), missing info, or general IRS review, with increased scrutiny on identity theft and income mismatches leading to longer processing times. Common culprits include wrong SSNs, math errors, incomplete forms, and discrepancies with income reported by employers.

How long is it acceptable to wait for a refund?

You must offer a refund to customers if they've told you within 14 days of receiving their item that they want to cancel. They have another 14 days to return the item once they've told you. You must refund the customer within 14 days of receiving the item back.

How long can IRS freeze your refund?

Yes, the IRS can freeze your refund and ask you to file if you have an unfiled return from a past year, especially if the IRS projects that you will owe taxes on that past return. The IRS will hold your refund for six months while it requests a filed return from you.