DEALHACK

agents@dealhack$fetch the freshest COS codes…

15% Off COS Coupons & Promo Codes September 2026

✓agent-verified & updated·

Today's Top COS Coupons:

15 offers in total
15%
OFF

15% Off Sitewide at COS

worked at checkout

Shop COS and save 15% sitewide with this promo code.

  • saves ~$17.49
  • community
How We Verify This Code
53
code confidence
good chance it works
12 of 32
code checks worked
$49.20
last confirmed discount
$17.49
median discount
14% of the cart
$599.86
saved in total
across every cart we have seen

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code
€5
OFF

5€ Off Your COS Order with Promo Code

worked at checkout

Save 5 € on Any Order by Using This COS Coupon at Checkout

  • saves ~4%
  • community
How We Verify This Code
27
code confidence
worth a try
2
code checks worked
4% of the cart
median discount

Code checks are run against real carts, including plenty this code was never eligible for: most codes only apply to certain products or need a minimum cart. We count the carts it worked on, not the ones it never fit.

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code
10%
OFF

10% Off First Purchase at COS

worked at checkout

Enjoy 10% off your first COS purchase when you use this discount code.

  • saves ~$11.95
  • community
How We Verify This Code
11
code confidence
still worth a try
4 of 17
code checks worked
$11.95
median discount
9% of the cart
$528.50
saved in total
across every cart we have seen

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code
10%
OFF

10% Off Your First Order

Receive 10% off your first purchase when you sign up for the COS newsletter. This offer is available to new subscribers and applies to their initial order.

Get Deal
15%
OFF

Save 15% on COS Summer Arrivals

worked at checkout

Take 15% off summer arrivals at COS when you use this coupon code.

  • saves ~$14.85
  • community
How We Verify This Code
3
code confidence
still worth a try
1 of 7
code checks worked
$14.85
median discount
5% of the cart
$14.85
saved in total
across every cart we have seen

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code
10%
OFF

10% Off for Essential Workers at COS

Essential workers who verify their status via GoCertify can get 10% off full-price and sale items at COS.

Get Deal
10%
OFF

10% Off First Full-Price Order

New customers who sign up for the COS newsletter can enjoy 10% off their first full-price order.

Get Deal
DEAL

Newsletter Exclusive: Early Access to New Collections

Subscribers to the COS newsletter receive early access to new collections and exclusive promotions. No promo code is required to enjoy these benefits.

Get Deal
FREE
SHIP

Free Shipping on Full-Price Orders

Complimentary shipping is available on all full-price orders when you sign up for the COS newsletter. No additional code is needed to receive this benefit.

Get Deal
10%
OFF

10% Student Discount at COS

Verified students can enjoy 10% off full-price and sale items at COS when they verify through Student Beans.

Get Deal
10%
OFF

10% Off First Order With Newsletter Signup

Sign up for the COS newsletter to receive 10% off your first order. The discount applies automatically at checkout.

Get Deal
10%
OFF

Save 10% on Your First COS Purchase

Get 10% off your first COS purchase when you use this discount code.

  • community
Offer Details

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code
10%
OFF

Get 10% Off Your First COS Purchase

Receive 10% off your first purchase at COS when you use this coupon code.

  • community
Offer Details

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code
15%
OFF

Take 15% Off Full-Price Orders at COS

Enjoy 15% off all full-price COS orders with this promo code.

use code
20%
OFF

Save 20% Off With Code

Add your picks to the bag, then use this code for 20% Off on eligible purchases at COS.

  • saves ~$54.50
  • community
Offer Details
$54.50
median discount
20% of the cart
$54.50
saved in total
across every cart we have seen

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code

COS Shopping Info

Discounts

✓
Popup/Newsletter
10% off your first order when you sign up for the newsletter
✕
Loyalty
✓
Students
10% off · Student Beans

Shipping & Returns

✓
Free Shipping
Threshold: $150
✓
Intl Shipping
Ships to over 38 countries worldwide.
✕
Free Returns
Window: 30 days · Fee: $7
Final Sale
Marked down sale items or specific personal care items may be final sale or subject to strict limitations.

Payments

Cards
Visa, Mastercard, American Express, Discover
Wallets
Apple Pay, Google Pay, PayPal
BNPL
Klarna, Afterpay
✓
Gift Cards

COS Code Checks, Day by Day

Every COS code check from the last 14 days, plotted by the day it ran. Green is how many came back working. Red is how many cos.com would not accept. That is the checkout testing you did not have to sit through yourself.

agents@dealhack: ~/signals --store cos.com --days 14
159
code checks run
30
checks where the code worked
18.9%
success rate
24
different codes tried
14 days · 159 code checks · 30 worked
workedpeak 6
would not applypeak 17
Daily coupon check results
DayCodes that workedCodes that would not applySuccess rate
21313%
21017%
1109%
10100%
31319%
3730%
51426%
2722%
21214%
6460%
1325%
1176%
090%
1109%
where this data came from:
96 automated cart runs56 shoppers reporting back7 web search results

56 of these results came from shoppers telling us whether a code worked; the rest come from automated checks and the other sources above. Last confirmed working on . Codes that stop clearing get pulled off this page automatically.

What These Numbers Mean

A code check is one result for one code. Most are our agents applying it to a real cart and reading the order total before and after; the rest come from tracked orders and from shoppers reporting back, as broken down above. Worked means the code was accepted and the total went down. Would not apply means cos.com refused it on that cart. That is not the same as the code being fake. The usual reasons are:

  • It expired or the store switched it off after it was published.
  • It was single-use and had already been redeemed.
  • It only covers certain categories, brands or individual products.
  • The cart did not reach a minimum spend.
  • It is limited to new customers, a first order, or an email sign-up.
  • It cannot be combined with an active sale or another code.
  • It is tied to a different country, currency or membership.

So a code that failed one check can still work on your cart, and the success rate (checks that worked divided by all checks) is best read as how easily COS discounts apply in general, not as a verdict on any single code. Hover any bar in the chart to see that day on its own.

When COS Runs Sales

Recurring events worth timing an order around. Windows shift year to year, so treat them as a shopping calendar rather than a fixed date.

  1. late June to mid-July
    End of Season Sale

    Marking down past-season minimalist apparel, outerwear, and footwear by up to 50% online and across retail locations.

  2. the week after Thanksgiving
    Black Friday Event

    Featuring site-wide promotional discounts across seasonal collections and core essentials for a limited holiday window.

  3. Boxing Day to mid-January
    Autumn/Winter Markdown

    Substantial winter clearance event offering reduced prices on heavy coats, knitwear, and cashmere capsule lines.

Locate the Code Box at cos.com

The agents tested the code. Entering it is the one part we leave to you. Here's exactly where the COS promo code goes at checkout.

Follow the shopper-submitted screenshots below to spot the COS promo box and apply your code. Miss a step and even a working code does nothing, so the agents mapped every one for you.

COS checkout page showing the Enter Promotional code field and Apply button

How to find

  1. 1.Go to the COS website and add an item to the shopping bag.
  2. 2.Click the shopping bag icon in the top right corner to view the cart.
  3. 3.On the 'Shopping Bag' page, look for the 'Promotional code' section on the right side.
  4. 4.Enter your code in the field labeled 'Enter Promotional code'.
  5. 5.Click the 'Apply' button to apply the discount to your order.

How to use

Enter the promo code into the field labeled 'Enter Promotional code' and click the 'Apply' button.

Before You Buy at COS

What shoppers ask most about COS.

›Can promotional codes be combined with other offers or sale items?

Promotional codes cannot be combined with any other offers or active discounts. Student discount codes are restricted to specific terms and may apply to selected full-price lines only.

›Are there specific items excluded from promotional discount codes?

Standard promotional codes exclude gift cards, selected designer collaborations, and specific limited-edition capsule collections. Always check specific campaign terms for brand exclusions.

›How is student discount eligibility verified at checkout?

Student verification is processed securely through Student Beans, issuing a single-use code to apply in your online shopping bag. The account email must match your active student profile.

›Does COS offer price adjustments if an item goes on sale after purchase?

COS does not offer retroactive price adjustments for items purchased prior to the launch of a seasonal markdown or promotional event.

How We Verify COS Codes

Nothing goes up here on trust. A COS code is collected, applied to a real cos.com cart, dated the last time it took money off an order, scored on what came back, and pulled once it stops clearing. Promotions have no code to run through a checkout, so those are dated when they go live and dropped when they lapse. Here is how far that has got on this page, and every change the agents logged along the way.

agents@dealhack: ~/verify --store cos.com --log
collect15 COS offers listed here: 8 codes you paste at checkout, 7 promotions that need none · 1 free shipping offer · 7 sent in by shoppers
test8 codes put through a live cos.com cart · last run
confirm6 of 8 codes took money off an order in the last 30 days · most recently
score4 codes rated on how likely they are to work · last recalculated
measure5 codes with a discount measured on real carts · $1,198 taken off in total
pruneexpired offers and dead codes drop off this page automatically

Recent COS offer activity

Each entry is a change the agents logged on this page, dated to the day it happened.

  1. 7 codes rescored on fresh results

    104 signals read · odds of working recalculated

  2. $49.20 came off a real cart

    15% off code · 14% of the cart total

  3. 4 codes retested at checkout

    applied to a live cos.com cart

  4. €5 off code worked on a live cos.com cart

    27/100 code confidence · 2 checks worked · 18 signals

  5. 15% off code worked on a live cos.com cart

    3/100 code confidence · 1 of 7 checks worked · 10 signals

  6. New 10% off code added

    sent in by a shopper · 6 signals

  7. New 10% off code added

    sent in by a shopper · 6 signals

The agents keep retesting every COS code on this page. No one here vouches for a code they did not watch work. If one slips through expired, take the next on the list. We keep backups.

Help Other COS Shoppers

Not every COS code reaches us from the store. 7 codes on this page were first submitted by shoppers. They have also sent back 56 checkout results in the last 14 days, telling us which codes worked on a real cart and which came up empty. Wherever a code comes from, it still has to pass the same cart test before it goes up here.

28 hours
since a code sent in by a shopper last took money off a real cos.com cart
35%
of every check on this page came from a shopper, not an agent

Have a code we missed?

Send it over and the agents will run it through a real cos.com cart. If it works, it lands here with the test behind it.

Did a code work for you?

Open any COS code above and tell us whether it worked. It takes one tap, no sign-up, and a code that keeps failing gets pulled off the page.

Rate a code

COS Customer Support

Need help with your shopping? Here's what's available for COS when an order, return, or promo code needs a human.

Live chat

Available

Help center

www.cos.com/en_usd/customer-service/contact-us.html

Customer service is primarily managed via web contact forms and live chat.

About COS

Who you're buying from.

Brand Profile

Websitecos.com
Founded2007
HeadquartersLondon, UK
Parent companyH&M Group
ReferenceWikipedia
Follow COS for sale alerts and new arrivals

Did You Know

Founding

COS opened its first flagship store on Regent Street in London in March 2007 with a runway show at the Royal Academy.

Naming

The name COS is an acronym representing the phrase Collection of Style, emphasizing its focus on elevated wardrobe staples.

Parent Company

COS operates as an independently managed upscale fashion concept brand under the ownership of the Swedish H&M Group.

Stores Like COS: Today's Best Coupons

These 12 stores sell products similar to COS. Below you can see the best coupon or deal available at each one today, so you can compare prices before you buy. 9 of them have a promo code you can copy at checkout.

Joe's New Balance OutletFree shipping

Free Shipping on Orders Over $75

Get free standard shipping on all orders over $75 at Joe's New Balance Outlet. No promo code needed.

Get Deal
WebEyeCare10% off

Save 10% on WebEyeCare Orders $125+

Use this promo code to save 10% on WebEyeCare orders of $125 or more.

  • store issued
Get Code
Tecovas20% off

Get 20% Off Selected Products with Tecovas Promo Code (Min $100 Purchase)

Redeem This Tecovas Coupon Code for 20% Off Selected Products on Any Order

  • saves ~$48.00
  • community
Get Code
New Era Cap20% off

Take 20% Off Storewide at New Era Cap

Unlock 20% off storewide at New Era Cap with this promo code.

  • saves ~$15.77
  • community
Get Code
Aviator Nation10% off

Extra 10% Off Sale Styles

Use this promo code to get an extra 10% off sale styles at Aviator Nation.

  • saves ~$10.50
  • store issued
Get Code
IronPanda15% off

Get 15% Off Your IronPanda Order

Shop at IronPanda and save 15% on qualifying purchases with this discount code.

  • community
Get Code
SlideBelts15% off

Save 15% on Every Item Sitewide

Take 15% off every item sitewide at SlideBelts when you use this code.

  • store issued
Get Code
Jimmy Choo

Complimentary Ground Shipping in the US

Get complimentary UPS ground shipping on eligible US orders, including store collection, with delivery in approximately 2-7 business days. Additional charges may apply for select destinations or faster shipping methods.

Get Deal
NORACORA10% off

10% Off Eligible Noracora Orders

Shop Noracora and save 10% on eligible orders with this coupon code.

  • saves ~$3.00
  • sitewide
Get Code
Sendero Provisions Co.15% off

15% Off Select Items at Sendero Provisions Co.

Use this promo code to save 15% on select items at Sendero Provisions Co.

  • community
Get Code
What Goes Around Comes Around

Grand Finale Sale: Discounts on Select Designer Pieces

Shop WGACAs Grand Finale sale for marked-down pre-owned and vintage designer bags, jewelry, and accessories. The sale page includes hundreds of qualifying items from brands such as Chanel, Christian Dior, Louis Vuitton, Gucci, and more, with discounts reflected in the listed sale prices.

Get Deal
INCERUNMEN10% off

Get 10% Off Your Purchase

Take 10% off eligible Incerunmen purchases when you use this code.

  • saves ~$3.28
Get Code

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