If the IRS mailed you Form 13818, Limited Payability Claim Against the United States for the Proceeds of an Internal Revenue Refund Check, the agency is investigating a refund check that was cashed more than a year after it was issued and needs you to confirm whether you were the person who cashed it. Complete the form, sign it, and mail it back to the address printed on page one within the response window. You cannot download IRS Form 13818 on your own — the IRS prepares it, pre-fills the check details, and sends it to you as part of an open refund trace.
Why You Received It
Treasury refund checks are only good for 12 months from the issue date. After that, banks won’t accept them, and by the 15th day of the 14th month after issuance, Treasury cancels the check and returns the funds to your IRS tax account. The money is still yours, but getting it back requires the IRS to verify what happened to the original check.1Office of the Law Revision Counsel. 31 USC 3328 – Paying Checks and Drafts
Form 13818 shows up in one particular version of that investigation. When the IRS looks up your check in the Treasury Check Information System, it finds that the check was cashed — but the endorsement on the back doesn’t clearly resolve whether you cashed it or someone else did. The IRS sends you the form along with a photocopy of the front and back of the negotiated check so you can look at the endorsement yourself.2Internal Revenue Service. Refund Trace and Limited Payability
If the check had never been cashed at all, you wouldn’t be holding this form. In that scenario the IRS simply cancels the old check and issues a replacement. Form 13818 is reserved for the harder case: the check was endorsed and deposited, and the IRS needs your statement to decide whether that endorsement was authorized or forged.
What’s Already Filled In and What You Need to Do
Most of the form arrives already completed. The IRS pre-fills:
- The payee name and address the original check was sent to
- The dollar amount of the refund
- The four-digit symbol number and eight-digit check number
- The date the check was issued
- The tax year and the tax form that generated the refund
Your task is to check those details against what you know, answer the questions on the form about the check and its endorsement, and sign it. The questions are meant to help the IRS decide whether you received and cashed the check, whether you recognize the signature on the back, and whether you are claiming someone else endorsed it without your permission.2Internal Revenue Service. Refund Trace and Limited Payability
If the refund was from a joint return, both spouses listed on that return must sign Form 13818. An unsigned or incomplete form gets sent back to you for correction, which restarts the clock on the response.
Before you drop it in the mail, photocopy everything — the signed form, the check image the IRS enclosed, and any letter that came with the packet. If there’s ever a dispute over what you sent or when, that copy is your evidence.
Where and When to Send It Back
The return address is printed on page one of the form itself. It belongs to the specific IRS Refund Inquiry unit handling your case, and it depends on your state of residence, so there is no single national mailing address for Form 13818. Send it to the address on the form you were given.3Internal Revenue Service. Updates to Refund Trace and Limited Payability
Deadlines matter. Domestic taxpayers have 45 days to respond. Overseas taxpayers have 70 days. If the IRS doesn’t hear from you inside that window, the case is closed and no replacement refund is issued. You would then have to start the refund trace over from scratch to reopen the claim.2Internal Revenue Service. Refund Trace and Limited Payability
What Happens After You Return It
A tax examiner in the Refund Inquiry unit picks up your file. The examiner confirms the form is complete and properly signed, reads your answers, checks whether the IRS originally sent the check to the wrong address, and compares the endorsement on the cashed check against signature samples the agency has on file — including endorsements on other Treasury checks and signatures on your prior tax returns.2Internal Revenue Service. Refund Trace and Limited Payability
If the examiner still can’t tell whether the endorsement is yours, the case may be forwarded to the Center for Science and Design for a professional signature comparison, with copies of the check, your completed form, and any additional signature samples attached.
Two outcomes are possible. If the IRS concludes the check was forged, it issues a replacement refund. If it concludes you cashed the check, the claim is denied. Either determination generally takes 45 to 60 days from the date you returned the form. Once a replacement is approved, expect roughly four to six weeks for the new check to arrive at a domestic address, and nine to eleven weeks at a foreign address. From returning the form to holding the money, plan on three to four months.2Internal Revenue Service. Refund Trace and Limited Payability
How Form 13818 Differs From Form 3911
The two forms often get confused because both involve missing refunds. Form 3911, Taxpayer Statement Regarding Refund, is the general-purpose form you or an IRS representative use to open a refund trace when a check was lost, stolen, destroyed, or never arrived, or when a direct deposit went astray. You can download it from irs.gov and submit it yourself.4Internal Revenue Service. Refund Inquiries
Form 13818 is not something you can download or file on your own initiative. It only exists inside an already-open investigation, and only when that investigation has entered the limited payability track because the check was cashed after the 12-month window. If you’re trying to start the process yourself, you need Form 3911. If a form arrived in the mail with the check details already filled in and a photocopy of a cashed check attached, that’s Form 13818.
A Note on Direct Deposit Refunds
Limited payability rules — and Form 13818 with them — only apply to paper Treasury checks. If your refund was sent by direct deposit and went to the wrong account or never showed up, the standard Form 3911 refund trace handles it regardless of how much time has passed, and Form 13818 never enters the picture.2Internal Revenue Service. Refund Trace and Limited Payability