A checkout coupon is a promotional offer or discount that is applied to a purchase at the time of checkout. These coupons are typically provided by retailers or online stores as a way to entice customers to make a purchase or to reward them for their loyalty. They can come in the form of a code that is entered at checkout, a physical coupon that is scanned or presented at the register, or a digital coupon that is automatically applied to the purchase. Checkout coupons can provide savings on specific items, a percentage off the total purchase, or free shipping. They are a popular marketing tool used by businesses to attract and retain customers, and can be a great way for shoppers to save money on their purchases.