Identity Verification

Why this is necessary

We want to prevent someone else from stealing your identity and tax refund by filing a false tax return in your name. This is one more measure we use to keep your information safe.

Why you were chosen

Our system flags returns with factors indicating the possibility of identity fraud. When this happens, we require the taxpayer to prove their identity before processing the refund. 

How the process works

If your return is flagged, you will get an Identity Protection letter asking you to complete the online verification process. You must correctly answer five multiple choice questions with answers that help us verify your identity.

You will know immediately if the process was successful. If successful, we will process your refund. If not, you must mail us documents proving your identity. Refunds will not be issued until the process is successfully completed.

Who can complete this process

  • Only those taxpayers who receive a letter can complete the process.
  • The taxpayer who received the letter must complete the process themselves or have a legal guardian or Power of Attorney assist. If the taxpayer is unable to complete the process online, she or he must mail the necessary documents.

What to do if you have a physical or language barrier

Call the Taxpayer Services Division at 801-297-2200 or toll free at 1-800-662-4335 Monday through Friday from 8:00 a.m. to 5:00 p.m.

Information you will need

You will need:

  • Identity Protection letter
  • Social Security Number (SSN) or Individual Tax Identification Number (ITIN)
  • Driver’s license number
  • Current and last year’s filed tax return

Your letter will give you the process instructions.

What to do if you can’t successfully complete the process

You must mail us documents to prove your identity if the verification process is unsuccessful. We will process your return after we receive your documentation.

What documentation you need to provide

You must mail the Identity Protection letter and two documents, one from each category. Please mail copies; not original documents.

Category 1: A document that has your photograph and full name, such as:

  • Utah driver’s license (current or expired less than one year)
  • Driver’s license from any other state (current)
  • State identification card
  • Passport
  • Military identification
  • Government issued photo identification


Category 2: A document copy less than 3 months old with your full name and complete address matching those on your currently filed return, such as:

  • Utility bill (gas, electric, cable, cell phone, etc.)
  • Bank statement
  • Payroll stub
  • Tax bill
  • Rental agreement (signed by landlord and renter)
  • College or university transcript
  • Insurance policy (vehicle, homeowners, renters, health, life)
  • Credit card statement

How to submit documentation


Go to Taxpayer Access Point (TAP). In the “Individual” section, choose “Attach & Submit ID Verification Documents.”


Mail or fax your identity verification letter and copies of the required documents to:

Utah State Tax Commission – SFG
PO Box 31400
Salt Lake City, UT 84131-0400
Fax: 801-297-3709 or 801-297-3802

Note: We will not accept documents sent via email.

Please do not send original documents since they will not be returned.