A system an method for providing banks with access to a previously inaccessible exiting international infrastructure. A provider bank first establishes on its system, a set of accounts for each of the customers of a client bank (the client bank environment). The client bank environment has its own Demand Deposit Account (DDA) module to process account entries and calculate interest and its own funds transfer module to initiate and to receive funds transfers. The primary interface into the funds transfer section in the client bank environment is to the funds transfer section of the provider bank environment. The funds transfer section of the provider bank is coupled to the systems which constitute the international banking infrastructure that is able to process banking transactions on a global basis for the customers of the client bank.