Fashion

COS Cashback

1 sites compared Highest seen 12% Checked daily
Best rate
12%
via Avios
Get 12% at Avios →
Favourite it or get emailed when the rate rises.

Links here are refer-a-friend links — Scrimpr may earn a small bonus, the same as if a friend referred you. It never changes your rate, and the ranking is purely by what each site pays you.

COS cashback — ranked

1
Avios Best today
12%
Visit

Cashback isn't guaranteed on everything — gift cards, marketplace or third-party sellers, and orders using an outside voucher code are commonly excluded. Check the site's COS terms before you buy.

Rates checked daily · tracking COS since 22 Jun 2026.

Rate history

COS cashback has risen — changed 1 time since 21 Jun, between 10% and 12%.

Pick a site to see its rate over time:

How COS cashback works

  1. Pick the top-paying site

    Click through to COS via its link in the table above.

  2. Shop as normal

    Finish checkout in the same browser session — don't switch device or reopen later.

  3. Wait for it to track

    Tracking shows in days; payable cashback often takes weeks once COS confirms the order.

Make sure your COS cashback tracks

Most "missing cashback" comes down to a handful of avoidable mistakes. Do these and your COS purchase should track cleanly:

  • Accept all cookies at COS. Cashback is tracked with cookies — reject them and there's literally nothing for the site to record.
  • Turn off ad-blockers and privacy tools. uBlock, Ghostery, Privacy Badger and Brave Shields all block the tracking pixel. Disable them for the purchase (or use a clean browser).
  • Disable other shopping extensions. Honey, Pouch and rival cashback add-ons grab the "last click", so they quietly steal the referral. Turn them off before you click through.
  • Click through fresh, then buy straight away. Start at the cashback site, go to COS, and finish checkout in that same session and tab — no wandering off, no reopening hours later, no switching device.
  • Only use voucher codes the cashback site lists. A code from anywhere else overrides the tracking link and voids your cashback.
  • Give it time, then claim. Tracking can take a few days and payable cashback often weeks. If it never shows, raise a "missing cashback" claim with the site — keep your order confirmation.

Stuck? See our complete cashback guide.

Earn even more at COS

Buy when the rate's high

We track COS's rate every day. Rates move around — sometimes higher near big sales — so check the history above and buy when it's up.

Always take the top payer

The same purchase can pay double on one site vs another. The ranked table is live, so click the site at the top.

Check for a new-member bonus

Some sites add a sign-up bonus on your first COS order — worth more than a slightly higher rate elsewhere.

About COS

A few percent cashback might not sound like much, but it adds up across regular COS orders — and it costs nothing extra to claim.

Scrimpr checks 1 cashback sites for COS every day and ranks them by what they pay you, so this page always shows the current best rate.

COS cashback FAQs

How do I get cashback at COS?
Click through to COS from a cashback site like Avios, then shop as normal. The site tracks your order and pays you a percentage back once COS confirms the sale.
Which cashback site pays the most for COS?
Right now Avios is highest at 12%. We check every site daily and rank them by what they actually pay you — the table above is always up to date.
How long does COS cashback take to pay out?
Tracking usually appears within a few days. Becoming payable takes longer — often weeks, sometimes months — because the site waits until COS confirms the order and the returns window has closed.
Can I use a voucher code and still get cashback at COS?
Only use codes listed on the cashback site itself. A code from anywhere else can override the tracking and void your cashback, so skip the random voucher sites.
Why didn't my COS cashback track?
Almost always an ad-blocker, a coupon browser extension, or not finishing checkout in the same session. Start from the cashback link, turn off blockers, and complete the order in one go.