Abstract: A wireless payment system allows high speed operation without user intervention with the convenience that cellular phones provide. The system being described uses a wireless stored value module attached to an ordinary cellular phone or embedded in the cellphone's Subscriber Identity Module (SIM) card. A Reader is installed in points of transaction that communicates with the module and deducts the balance stored in the module for effecting the payment. The transaction is sent by the Reader to a central database to update a copy of the module's balance and perform settlement functions at the end of the day. After every transaction, a SMS or text confirmation is received by the cellphone user which indicates the amount paid and remaining balance in the module. Re-loading of values in the module can be accomplished solely by sending text messages using a cellular phone from anywhere, any time.