COS Discount Codes - November 2026

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Follow COS on social media to stay up to date on their new-in garments, sales and exciting competitions. Not only will you discover stylish and timeless outfit inspiration, but you'll stay up to date with the latest COS giveaways. You could win as much as £1000 to spend in a COS store near you!

Full refund within 14 days

Get a full refund within 14 days of purchase. COS understands you don’t always know if what you’re buying online works for your look until you see it, which is why they offer free returns and will refund your order completely. Just make sure your items are returned clean, unworn and have all their tags.

The Best Time to Buy from COS

Historical deal data collected by Savoo since 2021 shows that November has the most COS promotions live, making it the best month to save on fashion. That increase is largely due to Black Friday, an event that has appeared in all but one year since we started tracking deals for COS. We’ve noticed that Black Friday deals appear in the final week of November, rather than earlier in the month. They typically run through Cyber Monday into the first days of December.

Discounts of 20-25% have been live during previous Black Friday events, usually covering selected categories. COS doesn’t always promote a headline discount, but you will find many reductions during this period. All savings during this period are applied directly to prices on the COS site.

January is the next most active period for COS deals. We have tracked post-Christmas sale activity for the last four years, with the COS sale section carrying marked-down prices at that time of year. Outside of November and January, deal activity is low. In fact, outside of November and January, COS averages just over one new deal per month. The archive and end-of-season sales, which have appeared every year on record, are worth checking for the deepest non-event markdowns, with seasonal clearance discounts reaching up to 60% off in recent years.

What Saving at COS Actually Looks Like

• A student buying a full-price coat at £120 saves £18 with the 15% student discount, bringing the total to £102. The discount applies only to full-price items and can't be stacked with other offers.
• A first-time buyer who signs up to the COS newsletter and spends £80 saves £8 with the 10% first-order discount, applied automatically with no minimum spend. On an order of exactly £50, the saving would be £5. Both figures assume it's the buyer's first order; the newsletter discount doesn't carry over to repeat purchases.
• A shopper buying from the COS sale section during an end-of-season clearance could see items reduced by 40-60%, based on recent tracked data. A £95 jacket reduced by 40% would cost £57. Returns cost £3 in processing fees and must be made within 14 days of receipt.

How Discounts Work at COS

COS deals operate almost entirely without voucher codes. In tracked data going back to 2021, only two sitewide codes appear in Savoo's tracked data. Both appeared between 2021 and 2022 and haven't been reissued since. Every deal in Savoo's tracked data since then has been codeless. When COS runs a promotion, it applies price reductions directly to product pages or links shoppers through to a specific sale category.

The one exception is the student discount, which generates a COS discount code, but it's issued after verification through a third-party platform (Student Beans or UNiDAYS) and entered at the shopping bag stage rather than in a conventional checkout code field. It's single-use per customer and can't be combined with any other offer.

1. Choose a COS deal from Savoo
2. Click to reveal your discount code
3. Copy the code and continue to the COS website
4. Shop fashionable style and select what you want to buy
5. Go to your shopping bag
6. Click on ‘Got a promotion code?’ underneath your order summary
7. Copy your promo code and proceed to checkout
8. Complete your order