

COS Promo Code
This page lists the currently available COS promo codes.
Verified COS Promo Code
15% OFFCODEVerified todaySelected items onlyLimited-time offerLast used: Today215 people usedDid this code work?85% success rate
10% OFFCODEVerified todayValid sitewideFor new customers onlyLast used: 2 days ago121 people usedDid this code work?85% success rate
15% OFFCODEVerified recentlyValid sitewideLimited-time offerLast used: Today101 people usedDid this code work?85% success rate🔔 Get notified when COS has a sale
20% OFFCODEVerified recentlyValid sitewideLimited-time offerLast used: 2 days ago83 people usedDid this code work?
10% OFFCODEVerified recentlyFor new customers onlyLast used: 3 days ago32 people usedDid this code work?
25% OFFCODEVerified recentlySelected items onlyLast used: 4 days ago5 people usedDid this code work?
25% OFFCODEVerified recentlySelected items onlyLast used: 5 days ago4 people usedDid this code work?
15% OFFCODEVerified recentlyLimited-time offerLast used: 6 days ago5 people usedDid this code work?
10% OFFCODEVerified recentlyValid sitewideFor new customers onlyLast used: 6 days ago26 people usedDid this code work?
15% OFFCODEVerified recentlyFor new customers onlyValid sitewideLast used: 6 days ago23 people usedDid this code work?
10% OFFVerified todayCode issued upon sign-upLimited-time offerLast used: 6 days ago52 people used
10% OFFVerified todayLimited-time offerStudent-exclusive discountLast used: 6 days ago16 people used
60% OFFVerified recentlySelected items onlyLimited-time offerLast used: 1 week ago12 people used
New promo codes are added as soon as they become available!
🔎 Explore available COS promo codes
Are these promo codes valid? Verified and updated regularly
All promo codes on this page are manually verified, and expired codes are clearly marked.
Invalid codes are removed promptly to keep this page accurate. Final availability and discount details are confirmed at checkout.
COS Promo Code
A COS promo code may be available through first-order, email, account, student or other limited-time campaigns. Availability, discount value and eligibility can change, so check the current verified COS offers before ordering rather than assuming a fixed welcome code.
A COS discount code may include customer, product, collection, sale-status, minimum-spend or usage restrictions. Review the terms attached to the specific offer and confirm the discount in your bag before checkout.
COS also runs seasonal sales and other direct markdowns. Compare any eligible voucher code with the current sale price and use the final order total as the main comparison point.
Why Your COS Promo Code Isn't Working
There are a few reasons a COS discount code might not go through at checkout.
- The COS promo code has expired or the promotion period has already ended.
- Certain products or collections may be excluded under the specific offer terms.
- The promo code doesn't apply to the items currently in your bag.
- The selected offer may have combination restrictions under its specific terms.
COS Student Discount
COS may offer a student discount through an approved verification partner in eligible markets. The discount percentage, eligibility rules, verification method, usage limits and product exclusions can change.
Before relying on a student offer, open the current COS student page or verification flow, confirm that Canada is eligible, complete the required verification and review the terms shown for the generated offer.
How to Redeem a COS Promo Code
To redeem a COS promo code, just follow the steps below.
â‘ On the product page, tap "Add to Bag" to add the item to your shopping bag.
â‘¡ When the confirmation pop-up appears, select "View Bag" to continue to your cart.
â‘¢ In your shopping bag, tap "Got a promotion code?" to expand the promo code field.
â‘£ Enter your promo code and tap "Add" to apply the discount to your order.

After entering the code, confirm that the discount appears in the order summary and compare the updated total with the price without the code.
COS Promo Code FAQ
Does COS offer promo codes?
COS can offer promo codes through selected campaigns, email or member offers, student discounts, and other limited-time promotions. Check the current eligible offers before ordering.
What is the best COS promo code available right now?
The best COS saving depends on the current promo code, student or member offer, and seasonal sale price. Compare the eligible options before purchasing.
Why is my COS promo code not working?
Your COS promo code may not be working because it's expired, the items in your bag are excluded from the promotion, or the offer was only available for a limited time.
Does COS exclude products from promo codes?
Product and collection exclusions depend on the individual COS promotion. Check the terms attached to the specific code before ordering.
Can I use multiple COS promo codes at once?
Combination rules depend on the specific COS promotion. Check the current terms and compare the final basket total before ordering.
COS Canada: Compare Seasonal Markdowns With Any Eligible Promo Code
COS savings are often driven by seasonal markdowns rather than a permanent public code. Compare the current price of the exact item, colour and size with any eligible email, account, student or campaign offer, and check whether sale items are excluded. For limited sizes, stock availability can matter more than waiting for a later promotion.







