IRS notice decoder · Identity and return verification
4883C: the IRS wants you to verify your identity by phone
A 4883C means the IRS is holding a return filed under your SSN or ITIN until you verify your identity by calling the number on the letter.
By the Carry Forward Learning team Reviewed by Hunter Nottingham, JD, CPA
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CheckedOct 19, 2026What a 4883C means
A 4883C is an identity check. The IRS says it received a Form 1040-series return under your Social Security number or ITIN and has to verify your identity and that return before it processes it. source 1
This one asks you to verify by phone, through the Taxpayer Protection Program hotline printed on the letter. source 1
If you filed, verifying gets the return moving. If you didn't, the IRS wants to hear that right away. source 1
Our one rule here: start verification only by typing irs.gov yourself or by using the number printed on the letter you hold. Never start it from a link in a message.
The date that counts
The IRS page gives no fixed window but says to verify immediately. Until you do, it says it won't process the return, issue a refund or credit an overpayment. source 1
Why people get one
- You filed, and the IRS wants to confirm the return really came from you.
- Someone else filed a return using your Social Security number or ITIN.
First steps
- Start verification only by typing irs.gov into your browser yourself. Never start it from a link in an email, text or social media message, even one that looks like it came from the IRS.
- Call the Taxpayer Protection Program hotline printed on your 4883C, not a number from an email, text or search result. source 1
- Have ready the letter, the return it refers to, a prior-year return if you filed one, and supporting documents for each year. Forms W-2 and 1099 are not returns. source 1
- If you didn't file a return for the year shown, say so on the call right away. source 1
- If you can't verify by phone, the IRS says you can schedule an appointment at a local IRS office and bring the documents. source 1
- If someone acts for you, the IRS needs a Form 2848 on file, or Form 56 for a fiduciary. source 1
What not to do
- Don't start verification from a link in an email, text or social media message. Type irs.gov yourself.
- Don't file Form 14039 after getting this letter; the IRS says to follow the letter's instructions instead. source 1
- Don't expect refund status from the hotline; the IRS says it handles identity and return verification only. source 1
- Don't click a link or call a number from an unexpected email, text or call that mentions this letter. Type irs.gov in yourself, and use the number printed on the letter you hold.
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Questions
Is a 4883C letter real?
Real ones are sent. Check without trusting the message: type irs.gov in yourself and call only the hotline printed on the letter. The IRS says the letter asks you to call the Taxpayer Protection Program hotline. source 1
When will I get my refund after verifying a 4883C?
The IRS page gives a set number of weeks after verification for a refund or credit, and says other problems found later could delay it. source 1
What if I can't verify my identity by phone?
The IRS says to schedule an appointment and bring your documents to your local IRS office. source 1
Should I file Form 14039 if I got a 4883C?
No. The IRS says to follow the letter's instructions instead. source 1
Sources
- IRS, Understanding your letter 4883C (updated July 20, 2026) (external site) checked Oct 19, 2026
Every rule on this page comes from the IRS page in the list, read on the date shown. Your notice itself is the final word on its own dates and amounts.