Redeem a coupon on the Amazon payment screen by inputting the coupon code in the appropriate text box. This can be done at the end of the purchasing process.
- Select an item
Choose the item you want to purchase from Amazon.com. Add it to your shopping cart.
- Go to Amazon Checkout
Click Proceed to Checkout to finish shopping. Log in to your Amazon account, advance through the checkout screens and choose a shipping method and shipping address.
- Enter the coupon code
On the payment page, locate the box labeled Gift Cards & Promotional Codes. Type the coupon code into this box and click Continue to submit your order.