How Do I Know If a Letter Claiming to Be From the IRS Is Real?

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

An envelope shows up with an official-looking seal, or a text message claims a refund is being held, and the panic that follows is exactly what a scammer is counting on. Slowing down for a few minutes to check a handful of details is usually enough to tell the difference.

The short answer

Genuine notices are almost always sent by physical mail, not by text, email, or social media message, and they include a notice or letter number that can be looked up independently. Scam attempts tend to demand immediate payment through unusual methods and create artificial urgency. Because the details of any individual notice can vary, verifying through official channels rather than the letter itself is the safest approach.

What genuine notices typically look like

Real correspondence usually arrives as a paper letter through the mail, referencing a specific notice or letter number, often printed in a corner of the page, along with a tax year and a description of the issue. It generally gives a reasonable window of time to respond and outlines appeal or dispute rights if the recipient disagrees. It does not typically demand payment on the spot, and it does not ask for payment through gift cards, wire transfers, or payment apps — methods commonly used in scams precisely because they’re difficult to trace or reverse.

Warning signs of a scam attempt

How to verify independently

The safest way to confirm a letter’s legitimacy is to avoid using any phone number or link printed on the letter itself and instead look up official contact information independently, then call using that verified number. Any notice number on a genuine letter can typically be cross-referenced through official government resources describing what that specific notice type means. It’s also reasonable to check whether any recent notice matches something already expected, such as a known balance or a filing discrepancy, since scam letters often reference vague or nonexistent issues designed to sound plausible without matching anything real.

What to do if something feels off

Because individual situations differ — someone who recently moved, changed their filing status, or has an outstanding balance may receive notices that look unusual but are legitimate — it’s worth resisting the urge to assume the worst or best case from the letter alone. Reaching out through officially published contact channels, rather than responding directly to the letter or an included link, is the most reliable path. If a message turns out to be fraudulent, it can generally be reported to consumer protection or tax authority fraud reporting resources, which helps track scam patterns even if no money changed hands.

Where this leaves you

A few consistent traits separate real notices from fraudulent ones: mail rather than text or email, a checkable notice number, a reasonable response window, and no demand for unusual payment methods. Because rules and formats can shift and every recipient’s situation is different, treating any high-pressure or unfamiliar contact with skepticism, and verifying independently before responding, is the most dependable habit regardless of how convincing the message looks.