Embodiments are directed to systems, apparatus, and methods for account pool processing. In some embodiments, a server computer can store account information for a first pool of accounts and a second pool of accounts. The server computer can receive a payment request message from a buyer that identifies a payment amount and a supplier, and can determine that the payment amount corresponds to the first or second pool of accounts. If the payment amount corresponds to the first pool of accounts, the server computer can select an account from the first pool of accounts, and can transmit account information for the selected account to the supplier. If the payment amount corresponds to the second pool of accounts, the server computer can select an account from the second pool of accounts, and can transmit account information for the selected account to the supplier.