Missouri Form 472S, the Seller’s Claim for Sales or Use Tax Refund or Credit, is how a business registered to collect Missouri sales or use tax recovers money it overpaid or collected in error. You file it with the Department of Revenue’s Taxation Division, together with amended returns and supporting records for every period covered by the claim. The blank form is posted at dor.mo.gov/forms.
When You Can File a Claim
Missouri allows a refund or credit whenever tax “has been paid more than once, or has been erroneously or illegally collected, or has been erroneously or illegally computed.”1Missouri Revisor of Statutes. Missouri Revised Statutes 144.190 – Refund of Overpayments In practice that covers a handful of recurring situations: you remitted tax on a sale and later learned the customer was exempt, you used the wrong local rate, the same tax was paid twice, or a sale was voided or returned after you had already reported it.
The Department applies any approved overpayment first against sales or use tax you currently owe. Whatever is left over is refunded to you.
How Long You Have to File
You have ten years from the date of the overpayment to submit Form 472S. The overpayment date is the due date of the original return or the date you actually paid the tax, whichever is later.1Missouri Revisor of Statutes. Missouri Revised Statutes 144.190 – Refund of Overpayments You and the Department can agree in writing to extend that period, but only before the original deadline runs out.
What to Gather Before You File
The form on its own is not enough. The Department expects a packet, and a missing piece will slow processing or get the claim returned.2Missouri Department of Revenue. Form 472S – Seller’s Claim for Sales or Use Tax Refund or Credit
- A copy of an amended return for every tax period that includes the sales in question. If you have three or more registered business locations, those amended returns must be filed electronically.
- Copies of exemption certificates or exemption letters for any exempt sales in the claim.
- A worksheet, in any format, showing how you arrived at the refund or credit amount.
- All invoices that support the claim.
- Form 2827 (Power of Attorney) if the contact person for the claim is not an owner, partner, or officer of the business.3Missouri Department of Revenue. Form 2827 – Power of Attorney
- Form 5378 (Agreement to Receive Refund by ACH Transfer) when the refund will be $100,000 or more.4Missouri Department of Revenue. Form 5378 – Agreement to Receive Refund by ACH Transfer
After reviewing the claim, the Department may ask for more, such as records of electronically filed returns or an item-by-item list of everything you accrued and paid tax on during the periods at issue. You get a reasonable time to respond.
Filling Out the Form
Enter your Missouri Tax I.D. Number and Federal Employer I.D. Number at the top. The Taxation Division uses both to match the claim to your filing history, so check them carefully.
In the “Reason for Refund Request” section, be specific. Identify the type of error, the periods affected, and the nature of the overpayment: exempt sales, duplicate payment, wrong rate, voided transaction. The statute requires every claim to “state the specific grounds upon which the claim is founded,”1Missouri Revisor of Statutes. Missouri Revised Statutes 144.190 – Refund of Overpayments and a vague description invites follow-up questions that delay the refund.
File a single Form 472S for the whole claim even if it covers multiple periods. If more than 12 periods are involved, attach a separate schedule breaking down the amounts and put only the grand total on Line 13. One point that trips sellers up: Missouri does not recognize negative taxable sales. To reverse a transaction, amend the return for the period the sale was originally reported rather than netting it against a later period.2Missouri Department of Revenue. Form 472S – Seller’s Claim for Sales or Use Tax Refund or Credit
Signatures and Duplicate Copies
The taxpayer must sign, or someone holding a valid power of attorney must sign on the taxpayer’s behalf. The signature is made under penalties of perjury. If a representative signs, include Form 2827 with the submission.
Section 144.190 requires “duplicate copies” of a refund claim, so submit two signed copies of Form 472S with the supporting documents.1Missouri Revisor of Statutes. Missouri Revised Statutes 144.190 – Refund of Overpayments
Where to Send It
The Taxation Division accepts the packet by fax or mail.
- Fax: (573) 751-9409
- Mail: Taxation Division, P.O. Box 3350, Jefferson City, MO 65105-3350
Faxing is quicker, but a thick submission with dozens of invoices and amended returns is often more practical to mail. Keep the fax confirmation or use certified mail so you can document the filing date.
Refunds of $100,000 or More
Large refunds are not paid by check. If your claim totals $100,000 or more, submit Form 5378 so the money can be deposited electronically. The Department will reject Form 5378 if it is missing required signatures, has scratch-outs or correction fluid, contains invalid bank information, or is submitted without a voided check attached.4Missouri Department of Revenue. Form 5378 – Agreement to Receive Refund by ACH Transfer
When Interest Starts Running
Missouri pays interest on an approved refund only if the Department fails to issue it within 120 days of the latest of three dates: the last day the return or claim was due, the date you actually filed the claim, or the date you provided complete documentation to support it.5Missouri Revisor of Statutes. Missouri Revised Statutes 32.069 – Interest Allowed and Paid on Refund or Overpayment For the first two quarters of 2026, the statutory rate for sales and use tax refunds is 3.2 percent.6Missouri Department of Revenue. Statutory Interest Rates
The clock does not start until the Department has everything it needs. An incomplete submission effectively resets it, and you can wait months without earning any interest. Build the full packet before you file.
If the Department Denies the Claim
A denial is the final decision of the Director of Revenue. You can appeal to the Missouri Administrative Hearing Commission within 60 days after the denial is mailed or delivered, whichever happens first. If you send the appeal by certified or registered mail, the postmark is the filing date; any other method is filed when the Commission receives it.7Missouri Department of Revenue. Business Tax Refund FAQs
Send the written appeal to:
Administrative Hearing Commission
Harry S Truman State Office Building
P.O. Box 1557
Jefferson City, MO 65102-1557
When a Purchaser Can File Instead of the Seller
Form 472S is for sellers, and ordinarily only the seller who remitted the tax may claim the refund. Missouri law does let a purchaser file directly with the Director of Revenue when the seller will not cooperate. The purchaser’s claim must include one of the following:1Missouri Revisor of Statutes. Missouri Revised Statutes 144.190 – Refund of Overpayments
- A notarized assignment of rights signed by the seller. It must identify the seller’s Missouri sales or use tax registration number, the transactions covered, the tax periods and location where the sale was originally reported, and a confirmation that the seller has not already received or applied for a refund on those transactions.
- A notarized statement explaining why the assignment could not be obtained, if the seller refused within 60 days of a written request, cannot be located, or is no longer in business. Describe the efforts you made.
Either way, the Director can apply the same offsets or defenses that would have applied against the seller, and the same tax will not be refunded twice.