A proxy card used at an ATM, or at any vendor store, that has a legacy point of sale unit or at a store with the smart point of sale. In general, it can be used with any vendor and otherwise as any credit or debit card might be used. The point-of sale unit interacts with a multi-source processing system (MSPS) that, instead of servicing a single money source, interacts with more than one of a plurality of monetary sources that may be associated with the proxy card. The money transferred from credit or debit accounts of the user may be either transferred directly or indirectly via a proxy central account associated with the MSPS that a user maintains.