Aldi has regained its position as the most affordable supermarket in the UK after being outranked by Lidl last month, according to the latest supermarket price analysis by Which?. The study revealed that a basket of 75 items at Aldi cost an average of £127.92 in August 2025, making it 38p cheaper than the same basket at Lidl with their loyalty scheme, Lidl Plus, which averaged £128.30.
In July, Lidl held the title of the cheapest supermarket but has now slipped to second place. The comparison included a mix of branded and own-brand products like Birds Eye Peas, Hovis bread, milk, and butter.
Clubcard members at Tesco spent an average of £142.36, while non-members paid £145.01 for the same basket. Sainsbury’s Nectar cardholders paid an average of £144.75, compared to £149.02 for non-cardholders.
For a larger list of 190 items, Asda maintained its position as the most budget-friendly supermarket this month. As Aldi and Lidl offer a smaller range of products, they were not included in this comparison. The larger Asda basket cost an average of £474.86, which was £11.03 cheaper than Tesco with a Clubcard.
Waitrose emerged as the most expensive option for both smaller and larger shopping lists, with the smaller basket costing £172.61 and the larger one totaling £548.14.
Reena Sewraz, Which? Retail Editor, commented, “Aldi has reclaimed its title as the UK’s cheapest supermarket in August, demonstrating continued affordability without membership fees. Asda remains the most economical non-discounter for larger grocery purchases, outperforming membership-based prices at Tesco, Sainsbury’s, and Morrisons. As we approach colder weather and increasing expenses, prudent shopping choices could lead to savings of up to 35%.”
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