There is disclosed a sales management system in which customers can intuitively instantly recognize next exchangeable premium from existing accumulated points, and shops can save troubles and expenses for preparing signboards or fliers every time the premiums are changed. The sales management system includes a POS apparatus and a server. The server manageably has customer data which stores accumulated points for each customer ID, and premium data in which premium information and image are associated and stored for each present point range. The POS apparatus 1 has: a barcode scanner; a card reader for reading the customer ID; a control unit which adds up accumulated points of the customer data specified by the customer ID, and points imparted in accordance with a total amount of commodities and which extracts the premium information and image from the premium data based on the point range of the premium data specified by the addition; and a printer which prints the premium information and image on a receipt.