Supermarket billing system is a software developed to help supermarket retails in managing their business in an efficient way. This software makes the billing process faster and this helps the customers. Each and every product details like name, price, and description are stored in a database system. It is developed in asp.net and database used is SQL.Earlier there was a manual system which required a lot of time in billing also it required a lot of paperwork so there was the need to automate all this and develop a faster and efficient system that works in a reliable manner. This system also contains discounts on certain products and bill is generated according to the discount offered. It is a user-friendly system and offers an easy GUI interface. The bills calculated are accurate and reduces human efforts. It saves resources of an organization and reduces a lot of paperwork.