Understanding Your Letter 5747C

What this letter is about

You may need to visit a Taxpayer Assistance Center, so we can verify your identity and process your tax return accurately. 

What you need to do


  • If you received the option to verify your identity online, use our secure Identity Verification Service, it’s quick, secure, and available 24 hours a day.
  • Have a copy of the 5747C letter you received and a copy of the tax return for the tax year shown in the letter.
  • You can use this option if you did or didn’t file a tax return.

If you didn't file:

Call the IRS Identity Verification number on your letter to tell us you did not file a tax return.

If you did file, schedule an in-person appointment.

Call our Taxpayer Assistance Center toll-free at the number on your letter. 

Note: Authorized third parties may assist taxpayers, but the taxpayer must be present in-person.

Bring the following to your appointment:

  • The 5747C letter
  • The income tax return referenced in the letter (Form 1040, 1040A, 1040-EZ,1040-PR, 1040-NR, 1040-SR, etc.). Note: A Form W-2 or Form 1099 is not a tax return.
  • A previous year’s income tax return, other than the year in the letter (Form 1040, 1040A, 1040-EZ,1040-PR, 1040-NR, 1040-SR, etc.). Note: A Form W-2 or Form 1099 is not a tax return.
  • Supporting documents that you filed for each year’s income tax return (Form W-2, Form 1099, Schedule C or F, etc.).

Bring the following Identity Verification Documents to your appointment:

  • A valid U.S. federal or state government-issued picture identification, such as a driver’s license, state ID, or passport.

At least ONE of the following forms of identification:

  • Current U.S. federal or state government-issued identification that is different from the first document provided; 
  • U.S. Social Security card; mortgage statement with current address;
  • Lease agreement for a house or apartment with current address; 
  • Car title; 
  • Voter registration card (not the voter registration application)
  • Utility bill with current address, 
  • Birth certificate (the IRS no longer accepts Puerto Rican birth certificates issued before July 1, 2010)
  • Current school records.

If we don't hear from you:

  • We may not be able to process your return, issue refunds, or apply overpayments to next year’s estimated tax.

The letter applies to identity verification only. No other tax-related information, including refund status, is available.

You can find more information in Publication 5027, Identity Theft Information for Taxpayers PDF.

Frequently asked questions

What happens after my appointment?

Once we verify your identity and confirm you submitted the tax return, we’ll continue processing your return. It will take approximately nine weeks to process.

Need Help?

  • See if you qualify for help from a Low Income Taxpayer Clinic.
  • If you can’t find what you need online, call the IRS number at the top of your notice or letter.