In some instances, you will need to verify your identity with the IRS. This helps prevent an identity thief from getting your refund. Who Must Use the Identity Verification Service Use this service only if you have a: You received a 5071C letter, 5747C letter, 6331C letter, or 5447C letter and your financial and phone information is U.S. based, or; An IRS representative directed you to use it If you received a 4883C letter or a 6330C letter, follow the instructions on the letter. You can't use this online service. What You Need to Verify Your Identity To register and verify your identity, you need: Your personal account number from a: Credit card Mortgage Student loan Home equity loan or home equity line of credit Car loan A mobile phone associated with your name Your 5071C letter, 5747C letter, 5447C letter, or 6331C letter The income tax return (form 1040,1040-PR, 1040-NR, 1040-SR, etc.) for the year shown on the letter Note: A Form W-2 or 1099 is not an income tax return You must also have your mailing address from your previous year's tax return Special Instructions for Filing Status and Mailing Address If you just filed a tax return with a new address: Enter the old address from the previous year, even if it's not your current address. We use this information for identity verification If you just filed your first tax return: Select the option labeled "I have not filed a tax return in the past seven years" as your filing status Accessibility Notes for Identity Verification Online There are compatibility issues with some assistive technologies. Refer to the Identity Verification Service Accessibility Guide for help if you use a screen reader, screen magnifier or voice command software. iOS 13, iPadOS 13.5, and macOS 10.13 and later VoiceOver users may experience difficulties when accessing this application. If this impacts you, see Other Ways to Verify Your Identity. Verify Your Identity Now Other Ways to Verify Your Identity If you can't verify your identity online or don't have the required documentation, please contact us using the toll-free number listed on your letter. To expedite the process when calling, you must have: Your 5071C letter, 5747C letter, 5447C letter, or 6331C letter The income tax return (form 1040,1040-PR, 1040-NR, 1040-SR, etc.) for the year shown on the letter Note: A Form W-2 or 1099 is not an income tax return Any other prior year income tax return Any supporting W-2's, 1099's, Schedule C, Schedule F, etc. If we can't verify your identity over the phone, we may ask you to schedule an appointment at your local IRS office to verify your identity in person.