The m-payment (mobile payment) transaction model between consumer and merchant in m-commerce (mobile commerce) is easy for payment anywhere and anytime because it is SMS-based. Advanced mobile phones are not needed and no extra charges are imposed by third-party payment gateways. This model is very useful for small consumer and small merchant via bank transaction. Security can be increased by including biometrics. This is simply a model. Hardware-side security features are very powerful for making secure m-payment transactions.