Rates last updated: Quidco 23 October 2026 · TopCashback 25 October 2026
| Cashback site | Headline rate | Type |
|---|---|---|
| Quidco | up to 4% | click-through |
| TopCashback | up to 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 | 0.8% |
| purchases where a Quidco voucher code is used | 0.8% |
| Category | Rate |
|---|---|
| Grenade — New Customer | 5% |
| Grenade — Existing Customer | 1% |
| Grenade — Online Purchase using Approved Voucher Code | 1% |
As of October 2026, the best cashback rate for Grenade is up to 5% via TopCashback. Grenade cashback is currently offered by TopCashback, Quidco.
For Grenade, Quidco currently offers up to 4% while TopCashback offers up to 5%, so TopCashback has the higher headline rate right now. Rates change frequently — check the live comparison before buying.
Yes — new customers currently earn 5% at Grenade, while existing customers earn 1%.
Sign up free to the cashback site with the best Grenade rate, search for Grenade there, click through to the retailer, and shop as normal. Cashback tracks automatically and is paid out once the retailer confirms the purchase.
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