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: Photo identification, if you don't have an existing ID.me account or IRS username, and The Form 1040-series tax return for the year shown on the letter Note: A Form W-2 or 1099 is not a tax return Verify Your Identity Now 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. 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 Form 1040-series tax return for the year shown on the letter Note: A Form W-2 or 1099 is not tax return Any other prior year tax return, if you filed one Any supporting W-2s, 1099s, 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.