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Aldi is no longer the cheapest place to buy your supermarket essentials, according to the latest shopping analysis by Which? Each month, the consumer analysis platform reveals its findings on the UK’s most affordable supermarkets based on a purchase list of 70 products. In the last two years, Aldi has topped this list nearly 92% of the time, thanks to its budget brands and purse-friendly products. However, things appear to be changing based on the latest list unveiled in October 2025. According to Which? analysis, Aldi was dethroned this month from the top spot by one of its biggest rivals. You’ve guessed it: Lidl. The findings show that based on a shopping list of 70 items, the total spent by standard Lidl shoppers was £120, while Aldi would set you back £121. It’s the second time in 22 months that Lidl has taken the top spot after also being branded the cheapest supermarket in July 2025 as well. And, while Aldi was the most affordable supermarket for the entire year of 2024, it appears that Lidl is giving the business a run for its money. Between Lidl and Aldi, the budget supermarkets consistently top the cheapest lists, allowing shoppers to save more than a tenner compared to standard supermarket chains. Although the price margin is minuscule, every penny counts as Brits start saving up for the Christmas period. As for standard supermarkets, the next cheapest are Asda, Tesco and Morrisons according to the October rankings. Whereas the same shop would cost £43 more than Lidl if you decided to get your groceries at Waitrose. As well as its standard shop, Which? It also produces a more comprehensive analysis based on the purchase of a broader range of products and branded goods that you typically won’t find in Lidl and Aldi. This second list again ranked Asda as the cheapest place to buy 187 products, with Tesco and Morrisons coming second and third when shopping is purchased with their loyalty card programmes. The latest supermarket price rankings come weeks after retail bosses wrote to the UK Chancellor, raising concerns about higher costs related to business taxes. In late October, Aldi’s executives were among the signatories of a letter addressed to Rachel Reeves that laid out concerns about a prospective surtax for properties with a rateable value over £500,000. In the letter, supermarket representatives said: “If the industry faces higher taxes in the coming Budget – such as being included in the new surtax on business rates – our ability to deliver value for our customers will become even more challenging and it will be households who inevitably feel the impact. “Given the costs currently falling on the industry, including from the last budget, high food inflation is likely to persist into 2026. “This is not something that we would want to see prolonged by any measure in the Budget.”
