Discount codes and the big sales are the first things most people think of when they want to spend less online. They help, but they're only part of the picture. This guide is for UK shoppers who want to cut what they spend over a whole year, not just on one order.
The sections below cover timing, comparing real prices, codes, cashback, loyalty schemes, refurbished stock and group discounts. It also explains how paying and returning the right way protects your money, with a worked example near the end.
Should you buy it now or wait?
For anything that isn't urgent, waiting usually saves money. A short pause stops impulse buys, and a longer one can line you up with a sale.
Give it 24 hours
The cheapest purchase is the one you don't make. Leave anything over £30 for a day before you buy it. Many must-haves lose their appeal overnight, and if you still want the item, you'll shop with a clearer head.
Time bigger buys around the sales
Some items follow a regular pattern. Bedding, furniture and homeware are typically cheapest in the January and summer sales. Televisions and laptops often drop around Black Friday and when new models arrive. Garden furniture is cleared at the end of summer, and winter coats tend to be cheapest in late winter. Our guide to the biggest UK retail sales sets out the year.
Compare the full price, not the headline
You pay the figure at the bottom of the checkout, not the one on the product page. Comparing delivered prices and checking price history stops you overpaying for a "deal".
Delivery charges and thresholds
A £45 item with £4.99 delivery costs more than a £48 item with free delivery. Many shops waive delivery above a set spend. Buying two things you need together to reach it is a real saving, but adding something you don't want just to qualify isn't. Our comparison of free delivery and percentage discounts shows how to work out which is worth more.
Price history and alerts
Prices on large marketplaces and electrical sites move all the time. Free price trackers show a product's history, so you can see whether "was £199, now £149" is a real drop. On bigger purchases, set an alert at the price you're happy to pay. Our guide on checking whether an online deal is worth it explains how to read that history.
Codes, cashback and loyalty schemes
These three savings can usually be used together on the same order. Each one is small on its own, but they add up.
Use one discount code every time
Checking for a code should be a habit. A 10% code on a £70 order saves £7, and £5 off a £25 first order works out as 20%. Look in your inbox and on the retailer's offers page, then apply the best single code. Almost every UK shop allows only one per order.
Add cashback on top
Cashback sites and bank reward schemes pay back part of your spend after the order is confirmed. Rates vary by retailer and change often. On a £300 appliance, 3% cashback would be worth £9. It can take weeks to arrive, isn't guaranteed and is usually cancelled if you return the item.
Join loyalty schemes where you already shop
Supermarket loyalty cards now unlock member prices on everyday items, which can save several pounds on a weekly shop. Pharmacy points and fashion reward tiers work in a similar way. Join schemes for shops you already use, and ignore any that would pull you somewhere more expensive.
Are refurbished and outlet items worth it?
Often they are, as long as you buy from a source with a clear warranty and returns policy. Manufacturer-refurbished electronics and open-box returns are commonly 20% to 40% cheaper than new. Many come with the same or a similar warranty.
Buy from the manufacturer, the retailer itself or a marketplace seller with good reviews and clear terms. Check what "refurbished" means in each case, because grading varies. Fashion outlets and "last chance" sections work in a similar way, with end-of-line stock at lower prices.
Do you qualify for a group discount?
If you're a student, NHS worker, teacher, carer or member of the armed forces, you probably qualify for ongoing discounts. Verification services confirm your status once and then give you access to offers across many retailers.
These discounts last as long as you're eligible, so they're worth setting up once and using all year. Our student discounts page is a good place to start.
Paying and returning without losing money
How you pay and how quickly you return things both affect what a purchase really costs. Neither is a discount, but both stop a bad buy becoming a loss.
Pay in a way that protects you
Paying by credit card for a single item over £100, up to £30,000, brings Section 75 protection. The card provider becomes jointly responsible if goods are faulty or never arrive. Pay the balance off in full so interest doesn't eat the saving. Debit card payments aren't covered by Section 75, though your bank may help through a chargeback.
Buy now, pay later can be interest-free, but missed payments bring fees and can affect your credit file. Treat it as a way to pay, not a discount.
Return what doesn't work, quickly
For most online orders, the Consumer Contracts Regulations give you 14 days from delivery to cancel for any reason. You then have 14 more days to send the goods back. The Consumer Rights Act 2015 also entitles you to a repair, replacement or refund if something is faulty. Check return costs before you buy, because some shops charge for return postage.
A worked example of the savings adding up
Here is an illustrative example of a £180 coffee machine bought from a large retailer such as Argos.
- The price history shows it was cheaper six weeks ago, so you set an alert. It drops to £155.
- A 5% newsletter code takes £7.75 off, bringing it to £147.25.
- Cashback at 2% later returns about £2.95.
- The order already clears the free delivery threshold, so there's nothing extra to pay.
Your net cost is about £144.30 against the £180 you nearly paid. That's a saving of roughly £35, or about 20%, on exactly the same machine. None of the steps took more than a couple of minutes.
A routine for every order
The savings that last come from habits rather than one big win. Keep a short list of what you actually need and shop from it. Check the delivered price, apply a code and then click through cashback, in that order.
For anything over £100, think about timing, refurbished options and paying by credit card. Run that routine on every order until it's automatic. Over a year, the difference adds up to real money.