Abstract: A method for enabling two businesses to complete a transaction that includes payment from one business (the buyer) to another business (the seller). A payment enabler operates the money transfer service over a computer network of nodes, such as the Internet. Typically, the buyer and the seller use the money transfer service of the payment enabler to consummate a transaction that they have arranged over the computer network through a business-to-business transaction facilitator that enables businesses to arrange deals over the computer network. During registration with the payment enabler, a buyer typically provides information about a bank account from which the seller will be paid, and the seller typically provides information about a bank account for receiving the funds from the buyer.