The software we currently use discounts sale items at checkout. When you click on an item that is on sale, you will be taken to the product page. Once on the product page, a drop down message will appear at the top of your screen containing details of the sale. At the end of the message, it should read "DISCOUNTS WILL BE APPLIED WHEN YOU REACH CHECKOUT". We apologize for the confusion, and are working on a long term solution. If you have any questions or concerns, please don't hesitate to reach out to us. Support@hwestationery.com