VALID › Notice Library › Letter 6255C

In the IRS’s own words · not reviewed by VALID

6255C letter explained, in the IRS’s own words

Advising that we'll be contacting a third-party to verify your income and the federal withholding you claimed. An example of a third-party is an employer you received income from.

Read the full 6255C page on irs.gov ↗

Quoted from www.irs.gov/individuals/understanding-your-letter-6255c, read October 15, 2026 · fingerprint 7caba5ba3818 · 1 line left out here (see irs.gov)

What this letter is about

Advising that we'll be contacting a third-party to verify your income and the federal withholding you claimed. An example of a third-party is an employer you received income from.

What you need to know

  • If you filed the tax return, you don't need to take any action.
  • You can call us if you haven't received your refund or heard from us within 60 days from the date of this letter. Please don't call us until 60 days after the letter date.
  • We recommend you review your return for any errors and file a corrected or amended return to correct the information if needed.

You may want to

  • Review this letter with your tax preparer.
  • Consider an IRS Identity Protection PIN to help prevent misuse of your taxpayer identification number on fraudulent federal income tax returns. Learn more at IRS.gov/ippin.
  • Contact Taxpayer Advocate Service (TAS) if you're experiencing an economic hardship or need help in resolving problems. You can reach TAS at 877-777-4778 or TTY/TTD 800-829-4059.

Why are you reviewing my return?

We select some returns to determine if income, expenses, and credits are being reported accurately. This doesn't mean you made an error or were dishonest.

What if I didn't file the tax return?

Someone else may have filed it for you without your consent. Send us a completed and signed Form 14039, Identity Theft Affidavit PDF. You may want to read our Identity Theft Central page while we review your Form 14039.

Reference tools

  • Publication 1, Your Rights as a Taxpayer
  • Publication 17, Your Federal Income Tax
  • Full list of tax forms and instructions

Need help?

  • You can authorize someone to contact the IRS on your behalf.
  • If you can’t find what you need online, call the IRS number on your notice or letter. If you didn’t receive a letter or notice, use telephone assistance.
  • If you can't resolve the penalty on your own, contact Taxpayer Advocate Service, an independent organization within IRS.

What to do next

  • Write down the date on the letter today.
  • Look the number up on irs.gov yourself. Don’t trust a link or phone number from anyone else.
  • If it says you owe money or proposes changes to your return, take it to a licensed CPA, EA or tax attorney before that date.

Not advice. Not a filing. Verify with a licensed professional. Rules change by year and facts.

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