Disclosed herein are various embodiments for systems and methods for self-payment and verification of the purchase of retail goods and services. According to an embodiment of the invention, a method for verifying the purchase using a mobile electronic device in wireless communication with a payment verification system and a code generating system is provided, the method comprising the steps of: receiving from a consumer information identifying an item for purchase; receiving from a consumer information identifying payment means for purchasing the item for purchase; processing the information identifying the item for purchase and information identifying payment means and generating a unique QR code indicating a purchase of the item; sending the unique QR code to a mobile device for display by a consumer to the vendor of the item for purchase.