A method and system support payments between two entities using a mobile device and a token identifier device. A payment or gratuity action is initiated by a payer using their mobile device, such as mobile communication handset, to scan a token identifier stored in the payee's token identifier device. In one example, the token identifier device is an RFID or NFC type device. After the token identifier is obtained, the mobile device communicates the TokenID, gratuity amount, and payer authentication information to a transaction management system that validates and attempts to transfer funds between the two entities. In one example, the transaction management system is a server system that communicates over a TCP/IP network. The transaction management system sends a communication to the mobile device indicating whether or not the transfer was successful.