The recording device 12 of a transaction processing system 1 sends main print data instructing printing a main receipt, which is a receipt for a single transaction, or partial receipt print data instructing printing partial receipts, which are receipts produced when payment for a single transaction is split between multiple parties, to a control server 15. The control server 15 receives the main print data and the partial receipt print data, and stores information based on the main print data or information based on the partial receipt print data in a transaction information manager database 421.