Abstract: Systems and methods for near real time payment processing on a vehicle are disclosed. In one embodiment, the method includes logging in at least one operator to conduct one or more transactions on a payment transaction system, and then automatically propagating at least one piece of itinerary information into each transaction. The method continues when an operator selects at least one commodity for purchase from a software database of commodities for each transaction. When at least one commodity is selected for each transaction, the operator then requests a card payment online authorization from a ground transaction processor. Once one of a payment approval or payment card denial is received in near real time, the method respectively completes the purchase on the payment transaction system or terminates the purchase. In an additional embodiment, a transaction summary is sent to at least one of an interested third party and a carrier owner.