Loyalty Card Pricing Creates Dramatic Gaps in Supermarket Costs
Recent analysis from consumer watchdog Which? has uncovered a startling trend in UK grocery shopping. Shoppers who do not use loyalty cards at major supermarkets like Tesco and Sainsbury's could be paying significantly more for everyday branded items than those who shop at Waitrose, traditionally viewed as a premium retailer.
The study, conducted in February 2026, compared prices on 245 branded products, including popular names such as Heinz, Nescafé, Mr Kipling, and Kellogg's Crunchy Nut. It found that non-cardholders face the highest prices, with a basket of groceries costing £942.66 for non-Nectar members at Sainsbury's. This is 14% higher than the cheapest retailer in the analysis, Asda, where the same basket totaled £823.58.
Price Comparisons Highlight Loyalty Scheme Impact
Tesco followed closely, with non-Clubcard holders paying £916.56 for the basket, an 11% premium over Asda. Which? noted that while most households participate in loyalty schemes, some avoid them due to privacy concerns or ineligibility. For instance, Tesco currently restricts Clubcard sign-ups to customers aged 18 and over, though the supermarket plans to review this policy by year-end.
Interestingly, Waitrose emerged as a more affordable option than many shoppers might assume. The same basket cost £899.05 at Waitrose, just 9% more than Asda and actually less than the non-loyalty prices at Tesco and Sainsbury's. This challenges the common belief that discount or mainstream supermarkets always offer the best value.
Individual Item Price Disparities Are Stark
The research highlighted specific examples where price differences were particularly dramatic. For non-cardholders, Amoy Straight To Wok Noodles cost £1.25 at Waitrose and Morrisons but soared to £2.15 at Tesco and Sainsbury's, a 72% increase. Similarly, Ryvita Thins, Sea Salt and Vinegar were priced at £1.25 at Waitrose compared to £2.30 at Tesco, Sainsbury's, and Morrisons without loyalty cards, marking an 84% rise.
Higher-value items also showed significant gaps. A 200ml bottle of L'Oreal Paris Elvive Bond Repair Shampoo costs £13 at Tesco for non-Clubcard shoppers, double the £6.50 Clubcard price. Kenco Smooth coffee (200g jar) was £8.35 at Tesco and Sainsbury's without loyalty cards, versus £7 at Waitrose and £6.32 at Asda. Even Nescafé Gold Blend was £6.25 at Waitrose, compared to £8.35 at Sainsbury's for non-Nectar cardholders.
Savings for Loyalty Card Users Are Substantial
For those who do use loyalty schemes, the savings are considerable. Tesco Clubcard holders paid an average of £837.43 for the basket, just 2% more than Asda. Sainsbury's Nectar members paid £848.56, 3% more than Asda, and Morrisons' More card offered a 4% premium over Asda, which increased to 5% without the card.
Which? provided eye-catching examples to illustrate these disparities. Carex Hand Wash costs just 95p with a Clubcard at Tesco but £1.70 at Waitrose, where it was the most expensive. Kellogg's Crunchy Nut cornflakes averaged £1.55 at Tesco in February but cost £2.50 at Waitrose, showcasing the 'dramatic price gulf' created by loyalty pricing.
Expert Advice and Retailer Responses
Reena Sewraz, Which? retail editor, commented: "Our analysis reveals a shocking truth and shows the impact loyalty schemes have had on grocery pricing. Branded favourites can actually be cheaper at Waitrose than at the UK's biggest supermarkets for shoppers who don't use a loyalty card - something that would have seemed unthinkable until a few years ago."
She added: "If you've got your heart set on specific brands, your best bet is to shop around, keep a close eye on the unit price and stock up whenever you see a good deal - otherwise, you're likely to end up paying way over the odds. While loyalty cards definitely offer some savings, if you don't use one, you're better off heading to Asda, where the pricing is usually cheaper on a range of branded goods."
In response, the retailers defended their pricing strategies. A Sainsbury's spokesperson stated that the supermarket has invested over £1bn in recent years to keep prices low, offering value through initiatives like Aldi price matching, Nectar prices, and own-brand lines. A Tesco spokesman said: "It's no secret that Tesco Clubcard unlocks exceptional savings for the 24 million UK households who have one. More than 80% of our sales are made with a Clubcard - but it's just one of the ways our customers get great value. Through everyday low prices, we keep prices consistently low on thousands of branded products and our Aldi price match ensures shoppers can be confident they're getting competitive prices."
