Best Supermarket & Grocery Deals in the UK

Saving on Groceries and Food Shopping

The cost of a weekly food shop has been a persistent pressure point for UK households over the past couple of years. While prices have stabilised somewhat, most people are still paying noticeably more than they were before 2023 — and the instinct to find better deals on food and household essentials has not gone away.

This guide covers the most effective ways to save across the supermarket and grocery category, from premium food retailers like M&S to specialist outlets and discount stores. If you also order groceries online, our cheapest grocery delivery comparison covers delivery passes, minimum orders, and which supermarket's online service is best value. For all currently verified codes, visit our supermarket deals page.

M&S — Premium Food Without the Premium Price Tag

Sparks Loyalty Card

The M&S Sparks card is genuinely one of the better supermarket loyalty schemes in the UK. Unlike points-based systems where you accumulate tiny fractions of a penny per pound spent, Sparks delivers tangible rewards — personalised offers, member-only pricing on selected lines, and occasional surprise rewards at the till.

Signing up is free and takes a couple of minutes through the M&S app. If you shop at M&S with any regularity, there is very little reason not to have it. The personalised offers adapt to your shopping habits over time, so the longer you use it, the more relevant the discounts become.

Dine In Deals

The M&S Dine In meal deal is a long-running promotion that offers a main, side, dessert, and drink for a set price — typically well below what you would pay buying the components individually. It rotates regularly and occasionally expands to include premium options. For a Friday night in, it remains one of the best value propositions in UK food retail.

Making the Most of M&S Codes

M&S discount codes tend to apply to clothing and homeware rather than food, but there are exceptions — particularly around seasonal events like Easter, Christmas, and Valentine's Day when hampers and gift food are promoted. Check our M&S store page before placing any online order to see whether a code is currently active.

M&S food also benefits from their well-known end-of-day reduction strategy. Shopping in store during the last hour before closing gives you access to yellow-sticker reductions on fresh and chilled products, often at 30-50% off.

Discount and Clearance Retailers

How Clearance Retailers Work

UK discount and clearance retailers sell household essentials, food, pet supplies, and home products at consistently low prices. Their model is built around bundle deals and clearance pricing, which means the product range shifts regularly — what is available this week may not be there next week.

This makes them particularly good for stocking up on non-perishable essentials when prices are right, rather than relying on them as a weekly shop replacement. Think cleaning products, tinned goods, snacks, and pet food at prices that undercut the major supermarkets.

Getting the Best Value

The key to saving at clearance retailers is watching for their bundle promotions and clearance events. Signing up for mailing lists gives you early notice of new stock drops and promotional periods. Percentage-off codes that apply across the site are worth checking before any order.

Delivery costs can eat into savings on lower-value orders, so it is worth building a basket that meets the free delivery threshold where possible. Grouping household essentials into a single monthly order rather than multiple smaller ones keeps delivery costs proportionate.

General Tips for Cutting Your Grocery Bill

Loyalty Schemes Are Worth the Effort

Beyond M&S Sparks, every major UK supermarket has a loyalty programme. Tesco Clubcard, Sainsbury's Nectar, and the Lidl Plus app all offer genuine savings — Clubcard prices alone can reduce a weekly shop by 10-15% on selected items. If you are not using a loyalty card at your main supermarket, you are almost certainly overpaying.

Timing Your Shopping

End-of-day reductions are available at almost every UK supermarket, not just M&S. Shopping in the last hour or two before closing gives access to yellow-sticker reductions on fresh products. Some stores also reduce items first thing in the morning after a weekend — particularly bakery products and fresh produce.

Meal Planning Reduces Waste

The most effective way to reduce food spending is not finding a better deal — it is buying less food that you end up throwing away. A rough meal plan for the week, even if you do not stick to it rigidly, prevents the impulse purchases that accumulate in a trolley and often end up in the bin. When you do order a takeaway instead of cooking, our best food delivery deals guide covers how to cut delivery costs across Deliveroo, Just Eat, and Domino's.

Comparing Online Prices

For online grocery orders, tools like trolley.co.uk allow you to compare prices across multiple supermarkets for the same products. If you are flexible about where you shop, running a quick comparison before committing to a weekly order can reveal surprising differences on staple items.

Buying Own-Brand

Supermarket own-brand products have improved significantly in recent years. In blind taste tests, many own-brand items are indistinguishable from — or preferred to — the branded equivalent. Switching even half of your branded purchases to own-brand equivalents can reduce a typical weekly shop by 20-30% without a noticeable difference in quality.

Frequently Asked Questions

Which UK supermarket is cheapest overall?

Aldi and Lidl consistently rank as the cheapest for a typical weekly shop in independent price comparisons. Among the larger supermarkets, Asda and Tesco (with Clubcard prices) tend to be the most competitive. However, the cheapest option depends on your specific shopping list — loyalty card pricing at Tesco and Sainsbury's can undercut discounters on individual items.

Are supermarket loyalty cards worth using?

Yes, without exception. Tesco Clubcard prices alone can reduce a weekly shop by 10-15% on selected items. Sainsbury's Nectar, M&S Sparks, and the Lidl Plus app all offer genuine savings. The cards are free and take minutes to set up — there is no financial reason not to use one at your main supermarket.

When do supermarkets reduce items for quick sale?

Most supermarkets apply yellow-sticker reductions in the last 1-2 hours before closing. Some stores also reduce bakery and fresh items first thing in the morning after a weekend. M&S and Waitrose are known for generous end-of-day reductions on premium fresh products. The exact timing varies by store — observe your local branch's pattern.

Can I use discount codes for online grocery shopping?

Some supermarkets and specialist food retailers accept promotional codes at online checkout. M&S and some specialist food retailers offer codes that apply to online orders. Major supermarkets like Tesco and Sainsbury's less frequently issue general discount codes, but do offer delivery saver passes and new customer delivery offers.

Is meal planning really worth the effort?

Research consistently shows that households that meal plan waste 30-40% less food and spend 15-25% less on groceries. Even a rough plan — deciding on 4-5 dinners for the week before shopping — prevents the daily "what shall we eat?" impulse purchases that inflate a food bill over time.

For all currently verified supermarket and grocery codes, visit our supermarket deals hub.

Sources & References

• Which? — Independent Product Reviews
• Food Standards Agency (FSA)
• Citizens Advice — Consumer Rights