Why Did the IRS Send Me a Letter Asking Me to Verify My Identity?

By The Penny Plan Editorial Team Published July 13, 2026 6 min read

An envelope from the tax agency shows up, and before it’s even opened there’s a jolt of worry that something has gone badly wrong with a return that seemed routine.

The short answer

An identity verification letter is generally a routine security measure meant to confirm that a tax return was actually filed by the person whose name and Social Security number are on it, rather than by someone attempting fraud. It doesn’t necessarily mean an error was made or that a refund is being denied, only that processing has paused until identity is confirmed. Following the instructions on the specific letter received is the most reliable way to move the return forward, since verification methods and requirements can vary by situation.

Why these letters get sent

Tax agencies use automated filters to flag returns that show patterns associated with identity theft, such as a return filed from an unusual location, a mismatch with prior filing history, or other anomalies the system is designed to catch. Getting flagged doesn’t mean fraud occurred. It often just means the return tripped a general filter that catches both fraudulent attempts and legitimate returns that happen to share similar characteristics. The letter exists specifically to sort out which situation applies before a refund is released.

What the letter usually asks for

Telling a real letter from a scam attempt

Because tax season is a common target for scams, it’s worth being cautious about unsolicited calls, texts, or emails claiming to be from a tax agency and demanding immediate action or payment. A genuine identity verification notice arrives by mail and directs the recipient to an official channel to respond, rather than asking for sensitive information over the phone or by clicking a link in a text message. When in doubt, using contact information found independently, rather than anything printed in a suspicious message, is a safer way to confirm a letter is legitimate before responding.

What happens after verification

Once identity is confirmed through the requested method, the return typically resumes normal processing, though timelines vary and this added step can extend the overall wait for a refund beyond what’s typical. This is one of several common reasons a refund can end up delayed beyond the usual processing window. Keeping a copy of the letter and any confirmation of the response is a reasonable practice in case follow-up is needed, similar to how keeping tax records for a reasonable period generally serves as a safety net.

The bottom line

An identity verification letter is a routine part of how tax agencies protect against fraudulent filings, and responding promptly through the official process described in the letter is generally the fastest way to get a return back on track. Because scams often mimic official communication, confirming legitimacy through independent means before sharing any information is a reasonable precaution, and setting aside a modest emergency fund can also take some of the sting out of a refund that takes longer than expected to arrive.