Enhanced systems and methods for processing invoices, checks, and money transfers are described. Various aspects include the following: Invoices are compared to distinguishing features of known templates. Templates of matching features are used to extract data in the invoices. Enhanced payment documents are generated to include images of related invoices to ensure proper deposit. Payee information solicited from a payee is printed on an endorsement section of a check payable to the payee to ensure proper deposit. The payee information can be verified through a mock transaction. Unique invoice numbers and payor numbers are included in invoices to ensure proper accreditation of payments of the invoices. Money transfers among accounts of different banks are effected through master accounts in the different banks.