Abstract: An integrated credit card data processing method that allows transactions to be processed either as a payment or as a receipt of payment. The new process is a combination of the regular data processing method for consumer purchases of goods and services similar to those used by credit/charge cards, debit cards, and smart cards and a merchant processing method that allows acceptance of such payments. The second part of the invention is a method to execute an order on the manner of disposition of the proceeds of sale, such as payment by check, application of the excess cash to outstanding debts, investment into a plurality of investment accounts, or retention of the proceeds as a credit to the account. The third part of the invention is a method to provide a report of both purchases and sales itemized together for an account holder.