Abstract: A system and method for wireless validation of gaming vouchers output from electronic gaming machines includes a number of electronic gaming machines physically connected to a centralized computer which receives and stores game transaction information, including records of printed vouchers and pay-out amounts relating thereto. Voucher records are stored by the centralized computer in a voucher database. When a player desires to cash-out a voucher, the voucher information is entered by an attendant in a wireless, portable computer device, and the information is relayed to a remote wireless interface connected to the centralized computer, which invokes a verification application program. The verification application program verifies that the voucher is valid and not paid out by checking the voucher database.