Electronic receipt issuing system

To enable issuance of an electronic receipt without previously registering personal information and carrying out a special operation in execution of a payment by a customer. There are provided a receipt data transmitting unit 12 for transmitting receipt data, a payment terminal ID and payment date and time information to a server 300 when a payment for a sales transaction is performed in a payment terminal 100, a payment terminal ID acquiring unit 21 of a customer terminal 200 for acquiring a payment terminal ID after completing the payment, a receipt issuance requesting unit 22 for transmitting, to the server 300, a receipt issuing request including a payment terminal ID and ID acquisition date and time information, and a receipt data extracting units 33 for extracting, from among the receipt data storing unit 35, receipt data whose payment terminal ID is coincident with the payment terminal ID in the receipt issuing request and whose payment terminal ID is acquired within a predetermined time from the completion of the payment, making possible to specify receipt data for a customer without using personal information.