Online Credit Inquiry System

Business owners, you can now access the Online Credit Inquiry System to determine if an overpayment exists on your Missouri sales and/or withholding tax account.

Here's how it works:

The online system provides information that reflects the Department’s prior day processing.

For sales/use tax overpayment assistance, contact

Missouri Department of Revenue
P.O. Box 3350
Jefferson City, MO 65105-3350
Telephone: (573) 526-9938
Fax: (573) 751-9409
E-mail: [email protected]

For withholding tax overpayment assistance, contact

Missouri Department of Revenue
P.O. Box 3375
Jefferson City, MO 65105-3375
Telephone: (573) 751-3505
Fax: (573) 522-6816
E-mail: [email protected]