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Letter 4310C: what it means and what to do
Got an IRS Letter 4310C? Here is what it means, your deadline, what to check before you answer, and how to reply. Check your own letter free: it stays on your phone.
Check my Letter 4310C freeWhat the IRS says this notice is about
Letter 4310C is telling you someone may have attempted to impersonate you by using your name and Social Security number (SSN).
Why we're contacting you
Through processing safeguards, we resolved the issue.
- We adjusted your tax account to show the correct return information.
- We also placed an indicator on your tax account to flag all tax returns submitted with your SSN as a possible identity theft case. We'll review those returns to ensure someone else isn't using your SSN to file a tax return.
What you need to do
- If you have already filed your tax return for the tax year indicated on your letter, you don't need to submit anything to us at this time. If you have not filed your tax return for the tax year indicated on your letter, you must file a paper return by mail to the Internal Revenue Service Submission Processing Campus that services your state.
- Please follow the instructions in the letter.
- Please continue to file your subsequent federal tax returns as you normally would. If we have any issues with processing your returns, we'll contact you. However, we won't use.
- e-mail to initiate contact with you or request personal information.
- If you notice any suspicious or unusual activity on any of your financial accounts, follow the steps as provided in Publication 5027, Identity Theft Information for Taxpayers PDF .
Your deadline
Answer by the date printed on your notice. If there is no date, answer as soon as you can, and call the number on the notice if you need more time.
What to check before you answer
File the missing return, or explain why you did not have to
If you already filed, send a copy and the date you filed. If you were not required to file, say why. Otherwise file now: the IRS may prepare a return for you without your deductions.
Is this letter really from the IRS?
The IRS writes first by mail. A real letter shows a notice or letter number, your name and part of your tax ID number. The IRS does not ask for payment by gift card, crypto or wire transfer. If in doubt, sign in to your IRS online account, where many notices are listed.
You may want to
Register for an Identity protection personal identification number (IP PIN) for future filings. An IP PIN is a unique 6-digit number that helps us verify your identity and accept your electronic or paper tax return. You will receive your IP PIN in a notice from us in December.
If you want to receive the additional security of an IP PIN immediately, visit Get an IP PIN ; verify your identity, and we’ll assign an IP PIN to file your returns.
How you can learn more about the IRS's identity protection efforts
The IRS is continually looking at ways to increase data security and protect taxpayers' identities. To learn more, view Identity Theft Central .
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