Most Big Discount Events of the year witnessed a vast number of coupons from KOS released. Especially, on federal holidays such as New Year’s Sale, Thanksgiving, Christmas... or on other important days such as Valentine’s Day, Easter, and Father’s Day..., customers also can buy at KOS with numerous coupons.

Once you find available coupon codes and are approved by the KOS official store, you can submit them to us at Coupon Submission. We are not responsible for the reliability of coupons provided by customers.

Yes. Coupons for each Discount Event of KOS will be collected here while being updated day by day. Sometimes, there will be deals not updated promptly but it's rare, we expect sympathy from you. 

There are now 17S offers on our site and KOS Coupon Codes usually end in 3-4 days. However, some KOS Deals don't have a definite end date, so it's possible that the code will be working until the store runs out of inventory for the promotional item.

It is hard to see a Sitewide Discount of 50% from KOS on normal days. It's easier for you to shop on federal holidays or important days of the year. New Year’s Day, Thanksgiving, Christmas, Military Day...are recommended.

At the time of updating, KOS has not applied Student Discount all year round yet. Check the official store and reach out to the customer support team to be clear.