Warrant Inquiry

The Warrant Inquiry Form allows a vendor to enter the warrant number and determine if the payment has been cashed.

Please be advised that as of July 1, 2026 the State of Illinois has a new Statewide Accounting Management System (SAMS). The new system issues payments with new warrant number prefixes. Refer to the table below for a comparison of old and new prefixes. Bring this notice with you when cashing your check in case your financial institution questions the check’s validity.

Questions? Call the Illinois Office of Comptroller at 800-877-8078 or 217-782-6000.