Check the envelope and the check itself for official markings

A genuine US Treasury tax refund check arrives in a white envelope with "OFFICIAL BUSINESS" printed in the upper left corner, along with the Treasury Department's address in Kansas City, Missouri. The envelope itself should have no handwriting on it—it comes directly from the IRS mail facility, not from a local post office or third party.

The check itself will have "United States of America" and "Department of the Treasury" printed at the top. Below that, you'll see "Internal Revenue Service" and the check number in the upper right corner. The amount, your name, and the date should all match what you expected based on your tax return. The check is printed on security paper with a subtle background pattern that makes it difficult to photocopy or alter.

Look for a watermark visible when you hold the check up to light—it should show "USA" repeated across the paper. The routing and account numbers at the bottom should be printed in magnetic ink (MICR), not ballpoint pen or regular printer ink. If any of these elements are missing, hand-drawn, or look faded, do not cash the check.

Verify the check amount against your IRS records

Log into your IRS account at IRS.gov using your username and password, or create one if you don't have an account yet. Once logged in, select "View your tax account" and then "Tax returns." Find the year that matches the refund check you received.

The refund amount shown in your IRS account should match the amount printed on the check exactly. If the check is for more or less than what the IRS shows you're owed, do not cash it. Contact the IRS at 1-800-829-1040 before depositing or cashing the check to confirm whether the amount is correct.

If you don't have online access or prefer not to use it, you can call the IRS directly at the same number and provide your Social Security number, filing status, and the tax year in question. They will tell you the refund amount the IRS issued and the date it was mailed.

Check the routing and account numbers for signs of tampering

The nine-digit routing number and the account number printed in magnetic ink at the bottom of the check should be clean, clear, and uniform in appearance. Run your finger lightly across them—they should feel slightly raised, not flat or printed on top of the paper surface.

If the numbers appear to have been scratched out, written over, or altered in any way, the check is counterfeit or has been tampered with. Do not attempt to cash it. Instead, contact the IRS at 1-800-829-1040 and report the check number and the condition you observed.

The routing number for US Treasury checks is always 021000021, which routes to the Federal Reserve Bank of New York. If the routing number on your check is different, it is not a genuine Treasury check.

Key Takeaways

  • Genuine Treasury refund checks arrive in white envelopes marked "OFFICIAL BUSINESS" with no handwriting, and the check itself displays "United States of America" and "Department of the Treasury" at the top.
  • The refund amount on the check must match exactly what your IRS account shows you are owed for that tax year.
  • The routing number on a real Treasury check is always 021000021, and the account and routing numbers should be printed in raised magnetic ink, not written or altered.
  • If you see any signs of tampering, mismatched amounts, or missing security features, contact the IRS at 1-800-829-1040 before cashing the check.
  • You can verify your refund amount online at IRS.gov by logging into your account, or by calling the IRS with your Social Security number and tax year.

What to do if the check looks suspicious

If anything about the check does not match the description above—the envelope looks wrong, the check is missing security features, the amount doesn't match your IRS records, or the paper feels thin or flimsy—do not cash it. Set it aside and contact the IRS before taking any further action.

Call 1-800-829-1040 and have the check in front of you. Provide the check number (printed in the upper right corner), the amount, and a description of what looks wrong. The IRS can tell you whether the check is legitimate and what to do next. If the check is counterfeit, they will issue a replacement and may ask you to return or destroy the suspicious check.

If you've already cashed a check you now believe was counterfeit or altered, contact your bank when ready and report it. Your bank can reverse the deposit and investigate whether the check cleared. The IRS can also issue a replacement check once the fraudulent one is identified.

Understand the difference between a real delay and a missing refund

If you were expecting a refund check but haven't received it yet, that's different from receiving a check that looks wrong. The IRS typically mails refund checks within 21 days of processing your return, but mail delivery can add another week or two depending on where you live.

You can track the status of your refund using the IRS "Where's My Refund?" tool at IRS.gov. Enter your Social Security number, filing status, and the refund amount. The tool will tell you whether the check has been mailed, when it was mailed, and the expected delivery date. If the tool shows your refund was mailed more than two weeks ago and you still haven't received it, contact the IRS to report the missing check.

Do not assume a check is counterfeit straightforward because it arrived later than you expected. Use the tracking tool first, then contact the IRS if the timeline doesn't match what the tool shows.

Protect yourself from refund check scams

Scammers sometimes send fake Treasury checks to people who have not filed a tax return, or who are not owed a refund. These checks look real enough to pass a quick inspection, but they're designed to trick you into depositing them and then sending the money elsewhere.

If you receive a check you did not expect, verify it through your IRS account before cashing it. If your account shows no refund is owed, the check is almost certainly fraudulent. Do not cash it, and do not contact the number printed on the check—that number belongs to the scammer.

The IRS will never contact you by phone, email, or text to tell you about a refund. If someone claiming to be from the IRS calls you about a check, hang up and call the IRS directly at 1-800-829-1040 to report the call. Real IRS communication comes by mail only.

Frequently Asked Questions

What should I do if my refund check is damaged or torn?

If the check is still readable and all the security features are intact, you can usually cash it at your bank. If the damage is severe—if the amount is illegible, the routing number is torn off, or the check is wet or stained—contact the IRS at 1-800-829-1040 and request a replacement check. Bring the damaged check with you when you go to cash the replacement.

Can I deposit a Treasury refund check using mobile banking or an ATM?

Yes, most banks allow you to deposit checks through their mobile app or ATM. Take a clear photo of both the front and back of the check, or insert it into the ATM slot if your bank's ATM accepts checks. The verification steps remain the same—confirm the amount matches your IRS account and check for security features before you deposit it.

What if someone else's name is on the refund check I received?

Do not cash a check with someone else's name on it. Contact the IRS at 1-800-829-1040 with the check number and explain that you received a check in the wrong name. The IRS will investigate and issue a corrected check to the correct person. If you cash a check in someone else's name, you may face fraud charges.

How long does it take for a deposited Treasury check to clear?

Most banks clear Treasury checks within one to two business days because they are backed by the federal government. Some banks may hold the funds for up to five business days depending on your account history and the amount. Contact your bank if you need to know the specific timeline for your deposit.

Is there a phone number printed on the check I can call to verify it?

No. Genuine Treasury checks do not have a customer service number printed on them. If a check has a phone number on it, that is a sign it may be counterfeit. Always verify through IRS.gov or by calling 1-800-829-1040 directly, not through any number on the check itself.