Abstract: Methods and systems for redeeming digital coupons within a network-based system are disclosed. For example, a method can include receiving a payment request, accessing a digital coupon, validating the digital coupon, applying the validated digital coupon, and processing payment of a revised payment request. The payment request includes sufficient information for a payment processor to transfer funds between a user and a merchant. Receiving the payment request also includes a reference to a digital coupon associated with an item included in the payment request. The digital coupon is accessed using the reference received from the user within the payment request. Validating the digital coupon creates a validated digital coupon that is applied against the payment request to create a revised payment request.