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.

Please note:

  • Authorized third parties may assist taxpayers, but the taxpayer must be present in-person.
  • Although the letters request a response within 30 days, the IRS will continue to work with you regardless of the amount of days that have passed.

Bring the following to your appointment:

  • The 5747C letter;
  • The income tax return referenced in the letter (the Form 1040 series return).
  • A previous year’s income tax return, other than the year in the letter, if you filed one.
    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); or
  • 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 at the IRS Identity Verification telephone number provided on your letter.

Frequently asked questions

What if I am incarcerated?

You must coordinate with your Prison Official.

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.

Where can I find more information?

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

The IRS Identity Protection PIN can help prevent misuse of your taxpayer identification number on fraudulent federal income tax returns. Learn more at IRS.gov/ippin.

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.