This guide is for anyone who has seen a "was £199, now £129" banner and wondered if it is really a bargain. It gives you a quick routine to test any online deal before you buy.
It covers price history, total cost, comparing retailers, working out the real saving and spotting pressure tactics. Each step takes a minute or two.
Is the "was" price genuine?
A discount is only as real as the price it is measured against. The key question is what the item actually sold for over the past few months, not what the label says. UK pricing rules say a "was" price should be genuine. In practice, it may reflect a short spell at a higher price or a recommended retail price that few people paid.
A price-history tool answers this quickly. Free trackers chart Amazon prices over time, and price comparison sites keep histories on popular products. Search the exact model name with the word "price" to find one. If an item sat at £54.99 most of the year and rose to £89.99 in October, a "£40 saving" is really £5.
Worked example: wireless headphones
A pair of headphones is £129 in a November sale, "was £199". The price history shows they launched at £199 eighteen months ago and fell to £149 within six months. Since then they have sat between £139 and £159. The honest saving is £10 to £20, not £70. That is still a fair price, but it is not the rare chance the banner suggests.
Total cost: delivery, returns and fees
The real price is what leaves your account, not the figure on the product page. Add delivery, any returns charge and any membership fee before you compare deals.
Delivery charges
A £22 jumper with free delivery beats a £19.50 jumper with £3.99 postage. For bulky items the gap can be much bigger. A £180 wardrobe with a £39 two-person delivery costs £219, which is more than the same wardrobe at £209 delivered free. Our guide to free delivery versus percentage discounts works through more of these sums.
Returns costs
Returns matter if you might send something back. Ordering shoes in two sizes from a shop that charges £2.99 for returns adds that £2.99 to your cost. Check the returns policy before you order, especially for clothes and footwear.
Is it cheaper somewhere else?
It often is, so search before you buy. Copy the exact product name or model number into a search engine or comparison site and look at the top five or six prices. Retailers such as Currys and Argos sell many of the same electricals, and prices on identical items can differ by £20 or more.
Check the model number matches
TVs and appliances are often sold in retailer-only versions with a slightly different model number. That makes direct comparison harder. If the numbers do not match exactly, the products may differ in small but real ways.
Use price-match policies
Some large retailers match prices from named competitors. That can get you the lower price while you buy from the shop you prefer. Read the policy first, as many exclude marketplace sellers and flash sales.
Working out the real saving
To find the real discount, divide the saving by the usual price. "Up to 50% off" only tells you about the cheapest item in the sale, not the one you want. A £35 saving on £140 is 25%, which is good. A £5 saving on £140 is under 4%, which hardly counts.
Would a discount code beat it?
A quick test is to compare the sale with a typical code. If the sale price is only 8% below the usual price, and the shop often gives new customers 10% off, the code is the better route. Welcome codes like this are common, though the terms vary by retailer.
Worked example: running trainers
Running trainers are 20% off at one shop, down from £100 to £80. With £4.50 delivery, you pay £84.50. A second shop sells them at £95 with free delivery and accepts a 15% welcome code. That brings the total to £80.75. The smaller code and free delivery beat the bigger headline discount. These figures are illustrative.
Countdown timers and fake urgency
Countdown timers, "selling fast" labels and "12 people are viewing this" messages are there to rush you. Some are accurate. Many reset each time you reload the page.
The simplest test is to close the tab and come back tomorrow. If the deal has gone, you have lost little, because offers on everyday items come round again. If it is still there with a fresh countdown, you have learned something about that retailer.
Are multi-buys and bundles good value?
They are good value on things you use steadily, such as toiletries, pet food or printer ink. They are poor value when they make you buy items you did not want. Work out the cost per item, then compare it with buying just what you need.
Take a three-for-two on £8 shampoo. You save £8, but if you only needed one bottle, you have spent £16 instead of £8. The deal only works if you would have used all three.
Who are you actually buying from?
On marketplaces, a very low price often comes from a third-party seller rather than the retailer itself. That can be fine, but check the seller's ratings, delivery times and returns policy. Grey-market electronics may arrive with a foreign plug or no UK warranty.
For anything over £100, consider paying by credit card. Section 75 of the Consumer Credit Act can then make the card provider jointly liable if something goes wrong.
A five-minute checklist
Run through these steps on any deal before you pay.
- Check the price history for the last few months.
- Add delivery and likely returns costs.
- Search for the exact model at other retailers.
- Work out the real percentage saving.
- Ask yourself if you would buy it at its usual price.
That last step matters most. A 40% saving on something you did not need still costs you 60% of the price. If you are planning a bigger purchase, our UK sales calendar helps you time it, and the current sales page shows what is on now.