Rates last updated: Quidco 23 October 2026 · TopCashback 25 October 2026
| Cashback site | Headline rate | Type |
|---|---|---|
| Quidco | up to 4% | click-through |
| TopCashback | 5% | click-through |
Headline rates are often "up to" figures that apply to specific categories. The full tier breakdown below shows exactly what each purchase type pays — something most comparison sites don't publish.
| Category | Rate |
|---|---|
| new customer purchases | 4% |
| existing customer purchases | 1.6% |
| Category | Rate |
|---|---|
| Karen Millen — Online Purchase | 5% |
As of October 2026, the best cashback rate for Karen Millen is 5% via TopCashback. Karen Millen cashback is currently offered by Quidco, TopCashback.
For Karen Millen, Quidco currently offers up to 4% while TopCashback offers 5%, so TopCashback has the higher headline rate right now. Rates change frequently — check the live comparison before buying.
Yes — new customers currently earn 4% at Karen Millen, while existing customers earn 1.6%.
Sign up free to the cashback site with the best Karen Millen rate, search for Karen Millen there, click through to the retailer, and shop as normal. Cashback tracks automatically and is paid out once the retailer confirms the purchase.