Cashback site referral codes September 2026

A cashback site pays you a share of the commission a retailer gives it for sending you as a customer. You click through, buy at the retailer's normal price, and the money comes back afterwards, which makes it the one deals mechanism that works on purchases you were making regardless. TopCashback and Quidco are the established UK sites, I hold accounts with both, and each pays a new member £10 for joining through a referral link. The thresholds are what separate them. Quidco releases yours at £5 of confirmed cashback with no deadline attached. TopCashback wants £10, on the same confirmed basis, within a window it resets every campaign: 180 days under the terms that ran to 14 August 2026, three years under the ones running to 1 September. So Quidco is the easier bonus to clear, and TopCashback is the broader site at over 5,500 retailers against Quidco's 5,000. Rakuten is the newest and pays the largest bonus, £25 for £50 of spending within 90 days, on a site listing 400 to 500 stores that moved its UK platform in April 2024 and has never paid us anything. Per-retailer rates differ across all three and none of them wins outright, so hold more than one and check the retailer rather than picking a side once. One warning that applies to every page quoting these figures, this one included: none of the three treats its referral terms as fixed. TopCashback rewrites its every fortnight at a new dated URL, Quidco reserves the right to move its amount at any time, and Rakuten pays a referred member whatever was advertised on the day they signed up.