Cashback is a financial incentive offered by retailers or credit card companies that allows customers to receive a percentage of their purchase amount back after making a transaction. This can be in the form of cash, credit, or points that can be redeemed later. Cashback programs encourage spending by rewarding customers for their purchases. Many credit cards feature cashback rewards, where users earn a certain percentage back on every purchase or specific categories like groceries or gas. Some retailers also offer cashback directly through their websites or apps, allowing shoppers to earn money back on their online purchases.