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IRS identity verification

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I received a letter from the IRS on Sat. Hands shaking I opened it: letter type 5447C, you need to verify your identity, call this number.

I just did and was on the phone with a woman who asked questions like, what's the dollar amount on line X of your 2025 return, what's such-and-such entry on your 2024 return, where were you born, mother's maiden name (how the fork does IRS even know this to verify), ... And weirdly she would ask a couple of questions then put me on hold for a few minutes, then come on again with more.

The ordeal lasted about 20mins. after which I asked her, Ma'am I owed money for 2025, which I paid, so why the identity verification? The worry for fraud would be if someone's asking a refund to be sent maybe somewhere it shouldn't, right? I got a rote answer about IRS wanting to protect taxpayers.

The letter and phone number were both clearly legit so no worries there. In any case, this is the first time I've got a letter like this in decades of filing, so a heads-up if this is a new protocol.

Why Did I Receive IRS Letter 5447C?

Receiving an IRS Letter 5447C generally means the IRS needs additional information to complete your tax return processing. Here are some common reasons you might receive this letter:

  • Missing Forms or Documents: If you failed to submit required tax forms or documents along with your return, the IRS might issue this letter to request them.

  • Income Discrepancies: The IRS may have received different income information from third parties (like your employer or bank) that doesn’t match what you reported.

  • Unreported Deductions or Credits: If you’ve claimed deductions or credits without supporting documentation, or if the IRS suspects errors in your calculations, the letter will request verification.

While these reasons can be a little nerve-wracking, the letter itself is usually just a request for clarification, not an indication that you’ve done something wrong.

  • 1 month later...

I just received one (in Bangkok). Have filed from here for many years, using H&R Block international for at least a decade. I overpaid estimates last year, so not expecting any problem. I'll post again after talking with them.

Following up here ... the international number opened at 7AM Eastern, not 6AM.

On hold for 30 minutes (as estimated), then took another 30 to go through it. Mainly reading details and numbers of my 2024 and 2025 tax returns, and waiting while she checked things elsewhere.

No explanation on tap, but she was very pleasant, so pretty painless overall. Maybe somebody else used my SS# by accident on their filing? Maybe my HR Block guy broke something (he was a last-minute sub for them)? Maybe some tiny difference in my mailing address (the long-line clipping was a little different)? Maybe Elon flagged everybody over 70? It does seem strange that they'd want me to confirm having paid my own taxes.

Edited by retiree

On 6/18/2026 at 3:50 AM, Migz said:

Income Discrepancies: The IRS may have received different income information from third parties (like your employer or bank) that doesn’t match what you reported.

This is one of the reasons I set up my online IRS access before moving to CM. It's easy to check what info the IRS received regarding your income by downloading 1 or more of the official transcripts made available for each tax year.

It is possible to setup up an ID.me account from Thailand... just a little cumbersome. Once you have that, you will get access to the online IRS website.

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