Understanding Your Letter 5447C
We received your federal income tax return, but we need more information to verify your identity in order to process your tax return accurately. The contact information below is only for taxpayers who received Letter 5447C.
What you must do
- Call the non-toll-free IRS Identity Verification telephone number shown in the letter. When you call, you’ll need to have a copy of the 5447C letter, your prior year tax return (if you filed one), and your most recently filed tax return (if you filed one) including supporting documents for each years return (such as W-2’s, 1099’s, Schedule C, Schedule F, etc.). The non-toll-free IRS Identity Verification telephone number is available for you to call even if you haven't filed a tax return for this year.
- If you prefer, you can write to us within 15 days of receiving the letter and include a copies of the requested information. Mail your information to the address on your letter
This contact information is only for taxpayers who received Letter 5447C. The non-toll-free number is for identity verification only. No other tax-related information, including refund status, is available.
Answers to common questions
What happens after I call the IRS?
We’ll continue processing your tax return once we verify your identity and confirm that you submitted the return. If you did file the return, please know it will take approximately 9 weeks to process it once you verify your identity.