COS promo codes - 15% OFF for October 2025
Save up to 15% OFF with our 12 COS promo codes and coupons, all verified by our deals experts.

Our page is dedicated to COS promo codes for US shoppers. For UK shoppers, go to our sister-site for COS discount codes on Marie Claire UK.
FAQs
Is there free shipping at COS?
Yes. You can get free shipping when you spend more than $150 at COS. As soon as you add the correct total, you'll immediately get free shipping at the checkout. Economy shipping for orders less than £150 usually costs $5, or standard shipping is $10.
Can I get a new customer discount at COS?
Absolutely. COS offers a 15% off discount code on your first order when you sign up to the brand's newsletter. Once you have, your code will instantly be sent to you, which you can use straight away.
What sales does COS have?
COS sales have incredible discounts although these only run on selected dates. As COS values its high craftmanship, these drops in prices don't usually happen. Earlier this year, we saw up to 25% off 'almost everything' in the Labour Day sales. You can usually also expect strong discounts on Black Friday, on Friday 28th November.
Does COS do a student discount?
Yes, students can get a 10% off discount code on COS purchases. You'll need to sign up to Student Beans for free to verify you're a student. Then, you'll immediately be able to see your unique COS student discount code.
Hints and Tips
Newsletter promotions: Sign up for the COS email newsletter to be sent exclusive promotions and know about sales first. As we've mentioned already, you'll also get a 15% off discount code on your first purchase. It's completely free to sign up, you'll only need to give your email address.
Earn with preloved: You'll earn COS credit when you return any 'gently used' preloved COS pieces. COS has partnered with ThredUp to help keep clothing out of landfills, and reach their sustainability goals. Whilst each piece is designed to last, if you're tired of it, you can pass it on to be resold.
Win a competition: Follow COS on social media for the occasional competition. Last year, COS even had a 'win a wardrobe' competition with no purchase required. All you needed to do was complete an online form. Whilst there can only be one winner, it's worth a follow.
Black Friday sale: Shop the COS Black Friday sales to purchase high-value pieces at some of the best prices. Previously, we've seen up to 30% off during Black Friday and the weekend itself. Sometimes, this has increased to up to 60% off selected items. We're expecting similar savings on Friday 28th November. Once the sale is over, you'll need to wait till next year for similar discounts again.
How to use your COS coupon code
- Choose one of our COS coupons from our site.
- Click 'get discount' or 'get code' then continue to the COS website.
- Start shopping and add your favorite pieces to the cart.
- Click 'go to shopping bag' when you're done shopping.
- You should see a 'got a promotion code?' text, click on this.
- Copy and paste your COS promo code into the box.
- Click 'add' and enjoy your new pieces for less.
How we source our codes
At Marie Claire, we have a dedicated team of deal experts, commercial colleagues, and editors who find and negotiate the best promo codes and coupons, as well as produce content aiming to help you shop affordably.
We have a dedicated team of 3 deal experts that are constantly sourcing and testing coupons and promo codes for some of the biggest retailers in fashion, beauty, and beyond to list on our website. They also work with affiliate networks to get a heads-up on future deals and discounts. This means we can update our pages
Meanwhile, our commercial colleagues are key to keeping good relationships with retailers. Their experience with lifestyle vouchers helps them to negotiate the best promo codes and exclusives for you.
On the pages themselves, you’ll find carefully researched saving information for all your beauty, lifestyle, and fashion purchases. Our contributing editors have years of experience in the industry and consistently update the page to reflect new ways to save. You’ll find helpful discount FAQs and saving tips which are checked and verified regularly.
What if my promo code doesn’t work?
- Trying the code and checking if they are valid ourselves.
- Check we don’t have any unique, one-use codes.
- Looking at the offer conditions to make sure you’ve got all the information.
However, there are occasions when details change or the codes may expire without us knowing. If this happens, be sure to contact us by emailing coupons.marieclaire@futurenet.com so we know.
How do we make money?
It’s completely free for customers to use the coupon codes we have above. We’ll get a small percentage of the money spent as a commission from the retailer you shop at. As with most businesses, we do need to make money however this will never impact the price you pay. The brand will give us a small share of the profit for connecting you to them. This helps us keep going whilst saving you more money.
Simply put, the retailer makes a sale, we get a commission, and you get a discount.

Becky Spicer is now a Senior SEO Copywriter at Future Publishing, for lifestyle vouchers. She has created content designed to save you dollars on luxury brands, writing for the likes of Marie Claire and WhoWhatWear. Writing with three years of experience in lifestyle savings, her content has everything from saving at awesome brands to answering your Black Friday questions. Becky can also be found typing her new novel, shopping beauty, or reading one of the latest trending books.
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About COS
COS creates beautiful quality ready-to-wear fashion and accessories to outlast fashion trends. Starting in 2007, COS started from the success of its sister-company H&M. COS is home to excellent quality clothing, inspired by modern times and cities. Each seasonal clothing collection is thoughtfully considered. You'll see high-quality materials - think cashmere and responsible merino wool. You can shop for on-trend womenswear or menswear, ideal for elevating your wardrobe. Or check the accessories section, which also has shoes, jewellery, and perfume. Start shopping COS with our COS promo codes today, and save on your purchase. This page has verified and working COS coupons for our US shoppers. Our sister-site is perfect for UK shoppers with its COS discount codes on Marie Claire UK.
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Becky Spicer is now a Senior SEO Copywriter at Future Publishing, for lifestyle vouchers. She has created content designed to save you dollars on luxury brands, writing for the likes of Marie Claire and WhoWhatWear. Writing with three years of experience in lifestyle savings, her content has everything from saving at awesome brands to answering your Black Friday questions. Becky can also be found typing her new novel, shopping beauty, or reading one of the latest trending books.