COS

COS Coupon

This page lists the currently available COS coupons.

10 Coupons5 Sales & OffersUp to 60% OFFLast checked: Nov 14, 2026
COS Black Friday 2026: see sale dates and codes →

Verified COS Coupon

  1. COS logo
    15% OFFCODE
    Verified today
    Selected items onlyLimited-time offer
    Last used: Today240 people used
    Did this code work?
    85% success rate
  2. COS logo
    10% OFFCODE
    Verified recently
    Valid sitewideFor new customers only
    Last used: Today133 people used
    Did this code work?
    85% success rate
  3. COS logo
    15% OFFCODE
    Verified today
    Valid sitewideLimited-time offer
    Last used: Today114 people used
    Did this code work?
    85% success rate
  4. 🔔 Get notified when COS has a sale

  5. COS logo
    20% OFFCODE
    Verified today
    Valid sitewideLimited-time offer
    Last used: Today92 people used
    Did this code work?
  6. COS logo
    10% OFFCODE
    Verified recently
    For new customers only
    Last used: Today35 people used
    Did this code work?
  7. COS logo
    25% OFFCODE
    Verified today
    Selected items only
    Last used: Today8 people used
    Did this code work?
  8. COS logo
    25% OFFCODE
    Verified today
    Selected items only
    Last used: 5 days ago5 people used
    Did this code work?
  9. COS logo
    15% OFFCODE
    Verified today
    Limited-time offer
    Last used: Today9 people used
    Did this code work?
  10. COS logo
    10% OFFCODE
    Verified recently
    Valid sitewideFor new customers only
    Last used: 4 days ago28 people used
    Did this code work?
  11. COS logo
    15% OFFCODE
    Verified today
    For new customers onlyValid sitewide
    Last used: Today25 people used
    Did this code work?
  12. COS logo
    10% OFF
    Verified recently
    Code issued upon sign-upLimited-time offer
    Last used: 4 days ago54 people used
  13. COS logo
    10% OFF
    Verified recently
    Limited-time offerStudent-exclusive discount
    Last used: Today19 people used
  14. COS logo
    60% OFF
    Verified recently
    Selected items onlyLimited-time offer
    Last used: 5 days ago14 people used
  15. COS logo
    10% OFF
    Verified recently
    Selected items only
  16. COS logo
    Free Shipping
    Verified recently
    Selected items only
    Last used: 5 days ago1 person used

New coupons are added as soon as they become available!

🔎 Explore available COS coupons

Expired Promotions

These coupons have expired, but some may still work.

  1. COS logo
    20% OFF (Expired)
    Full-price items onlyLimited-time offer

    This promo code has expired

  2. COS logo
    50% OFF (Expired)
    Sale items onlyLimited-time offer

    This promo code has expired

  3. COS logo
    25% OFF (Expired)
    Sale items onlyLimited-time offer

    This promo code has expired

New coupons are added as soon as they become available!

🔎 Explore available COS coupons

Are these coupons valid? Verified and updated regularly

All coupons 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.

How we find and check offers

COS Coupon

A COS coupon may be available through first-order, newsletter or other selected campaigns in the US. The discount amount, eligibility, exclusions and delivery method can change, so check the current verified COS offer and terms before ordering.

A COS promo code may be delivered by email or through another eligible campaign. Product, customer and sale-item eligibility can vary, so review the current terms before using the code.

In addition to COS promo codes, COS may run seasonal sales, mid-season promotions, and other limited-time offers. Eligibility for sale items and combinations with other promotions depends on the terms of the specific COS offer, so compare the current options and final checkout total before ordering.

Why a COS Coupon Doesn’t Work

COS coupon codes may not work due to specific restrictions or conditions.

  • COS coupon expired or promotion ended
  • Selected products or collections are excluded under the current offer terms
  • The code was emailed to you but you are not signed in to your COS account
  • The offer cannot be combined with another active promotion

How to Compare COS Coupons and Sale Prices

COS savings can come from coupons, direct markdowns and customer-specific offers with different conditions.

  • Compare the current item price with any eligible coupon.
  • Check product, customer and minimum-spend requirements for the specific offer.
  • Confirm whether a code can be used with an existing sale price under the current terms.
  • Use the final checkout total as the comparison point before paying.

Steps to Get a COS Student Discount

COS Student Discount Summary

Students with a valid Student Beans card get 10% off online only at cos.com. The discount applies to full-price and sale items but cannot be combined with other offers.

Steps to Get a COS Student Discount

  1. Click COS Student Discount Link
    Steps to Get a COS Student Discount

    If a COS student offer is currently available, follow the student-discount link shown on the official site and complete the verification process required for that campaign.

  2. Open the COS page on Student Beans
    Steps to Get a COS Student Discount

    From the COS student discount page, go to the COS page on Student Beans and log in to verify your student card.

  3. COS Student Verification
    Steps to Get a COS Student Discount

    Sign in to Student Beans or create an account, then complete the student-status verification requested. Verification can use your institution portal, an accepted academic email, or supporting documents; having an email address alone does not establish eligibility. See Student Beans verification help.

  4. Generate and apply Student Discounts
    Steps to Get a COS Student Discount

    After verification, use the current student offer provided by the verification partner. The discount amount and code availability can change, so review the live terms before applying it at COS checkout.

How to Redeem a COS Coupon

To redeem a COS coupon, follow the steps below.

How to Redeem a COS Coupon

① On the product page, choose an available size if required, then tap “Add to bag”.

② When the confirmation screen appears, select “Go to Shopping Bag” to proceed.

How to Redeem a COS Coupon

③ In the shopping bag, tap “Got a promotion code?” to expand the coupon section.

④ Enter your coupon and tap “Add” to apply the discount.

How to Redeem a COS Coupon

Before applying a coupon, review the current order total with no code-based discount applied.

After the coupon is applied, the eligible discount is reflected in the updated final total.

COS Coupon Guide to US Shipping and Returns

Economy shipping costs $5 (4-7 business days) and becomes free on orders over $150 when you sign in or become a member. Standard shipping is $10 (3-5 business days) and Express is $25 (1-2 business days, not offered to Alaska or Hawaii). Collect in Store is free at selected stores.

Your return window depends on the price you paid. Full-price items can be returned within 30 days of the purchase date, while reduced-price items have 14 days from the delivery date. Pieces marked Final Sale cannot be returned, exchanged or credited.

Returning by mail costs $8, deducted from your refund and charged per order. Returning to a COS store in the US is free. There are no online exchanges: send the item back and place a new order, or swap it in store.

COS Coupon for Essential Workers

Essential workers who can verify their employment through Gocertify get 10% off online at cos.com. Once verified, you receive a discount code to enter at checkout.

Like the student offer, this discount works on both full-price and sale items but cannot be combined with other offers, so compare it against any other code before you pay.

COS Coupon FAQ

Does COS offer coupons?

Yes. COS offers 10% off your first order for newsletter sign-ups, a 10% student discount through Student Beans, a 10% essential workers discount, and coupons during selected campaigns. Seasonal sales can also provide additional savings, so compare the current eligible offers before ordering.

What is the best COS coupon available right now?

COS may offer coupons during selected campaigns, alongside seasonal sales and other limited-time promotions. Check the current verified offers and compare the eligible options before ordering.

Why is my COS coupon not working?

A COS coupon may not work due to expiration, product exclusions, or limited-time availability.

Does COS exclude products from coupons?

COS does not publish a general exclusion list. Exclusions depend on each offer: some codes leave out sale items, while the student and essential worker discounts apply to full-price and sale items.

Can I use multiple COS coupons at once?

Combination rules depend on the specific COS promotion. Check the current offer terms and confirm the applied discount in your bag before paying.

Does COS give a discount for signing up for the newsletter?

Yes. Signing up for the COS newsletter gives you 10% off your first order. If the code reaches you by email, sign in to your COS account before entering it, otherwise it will not apply.

Will COS refund the difference if an item goes on sale after I order?

No. COS does not accept price adjustments, online or in store. If you expect a markdown, keep in mind that reduced-price items only have a 14-day return window from delivery.

COS Member, Sale & Product Eligibility Check

COS promotions are often tied to selected campaigns, account or email eligibility and direct seasonal markdowns rather than a permanent public code. Check whether the exact product and sale status qualify, then compare the current item price with any eligible account offer and confirm the final cart total.

COS: compare full-price offers with seasonal markdowns

  • New arrivals, selected categories, and sale items can have different promo eligibility.
  • Compare newsletter or campaign codes with the current markdown and verify whether discounts can be combined.
  • For COS, compare the exact item during seasonal and mid-season sales, because direct markdowns, size availability and coupon eligibility can differ by product.

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