The UK’s cheapest supermarket revealed with £393 a year saving – not Lidl

Consumer group Which? spent the year comparing thousands of products from eight supermarkets and was able to reveal which was the country’s cheapest supermarket of the year.

While the likes of  and have been known for their bargains and cheaper prices, according to Which? it was Aldi that came out on top as the UK’s cheapest supermarket.

Aldi beat its rivals throughout every month of last year and research found that those shopping at the would have saved a major £393 a year, in comparison to the most expensive supermarket.

Which?’s information also revealed that in December a shopping list of 56 groceries at Aldi cost around £100.29. Lidl was closely behind  across all 12 months of the year.

An average shop at Lidl including its loyalty scheme, Lidl Plus would cost £101.48 – only £1.19 more expensive than it’s cheaper alternative.

However, without Lidl Plus, shoppers would spend £101.56, making it £1.27 more expensive than Aldi. While the research revealed the savings people made by opting to shop at Aldi, it also showed just where people are spending the most.

Referring to Aldi, Harry Rose, editor of Which? magazine, said: “A shopper would have saved £393 on average, over the course of a year by choosing to stop at the German discounter rather than the most expensive alternative.” – that being .

An average December shop of both branded and own branded items, in the country’s would have cost customers £129.83 – £29.54 more than Aldi.

The research did take in consideration special offers and loyalty prices but did not include multibuy. Which? explained that restrictions on who can access loyalty prices would only favour the supermarket with the lowest prices and available to all customers.

The prices of a larger shop was also compared. Which? analysised the prices of a trolley of over 150 items every month but it did not include Aldi and Lidl as the items included various branded items that budget supermarkets sometimes do not stock.

For nine months of the year, Asda came on top as the cheapest supermarket for a larger shop. However, in June 2024 when the research started taking into account loyalty prices, Tesco became the cheapest store for three out of the seven months.

It was also the cheapest on average in December for those using a clubcard where a trolley of 158 items cost £410.40 beating the likes of Sainsbury’s, Morrisns and Asda.

Mr Rose said: “Our analysis shows that by switching supermarkets, shoppers can make significant savings, highlighting the advantages of shopping around where possible.”