How to tell if a sale price is actually a discount

The crossed-out number is doing more work than the one you pay. Here is what it actually means.

Updated 2 September 2026 · 3 min read

Almost every discount you see is presented the same way: a higher number, struck through, sitting next to a lower one. That layout is not decoration. It is there because of how people judge value — we are poor at knowing what a thing should cost in absolute terms, and very good at comparing two numbers placed side by side. Give someone a reference point and they will judge the price against it rather than against the market.

Which means the crossed-out number is the most important part of the offer, and the part least often checked.

What a "was" price is supposed to mean

In the UK, a reference price is not meant to be a decorative higher number. The principle behind the rules is that a "was" price should reflect a genuine previous selling price — a price the retailer actually sold that product at, for a meaningful period, reasonably recently. A price that was live for a weekend in a single shop, or that nobody ever paid, is not a fair comparison, and presenting it as one can be a misleading practice.

The same logic applies to the other reference prices you see: "RRP", "list price", "elsewhere". Each is a claim about a comparison, and each is only useful if the comparison is real.

The four checks

1. Ask when the "was" price was last the actual price

This is the single most useful question, and price history tools exist precisely because retailers do not answer it on the page. A product that has sat at the "sale" price for most of the year is not on sale. It has a price, and a decorative higher number above it.

2. Check the price at a different retailer, not a different page of the same one

A discount is a comparison against the market, not against the shop's own previous number. A retailer can only tell you about its own pricing. If three other shops sell it lower without calling it a sale, the sale is not a saving.

3. Add the costs that come after the price

Delivery, returns postage, minimum spend to unlock free shipping, an installation fee, a required accessory sold separately. The cheaper headline price frequently loses once these land. Compare what leaves your account, not what appears in the largest font.

4. Notice whether the discount arrived with a deadline

A genuine price cut does not usually need a countdown timer attached. Urgency is added when the seller wants the decision made before you compare — which tells you something about how the price would fare if you did.

The sales that are usually real

Not every discount is theatre. Reductions tend to be genuine when the retailer has a reason to want the stock gone rather than a reason to want you to hurry:

  • End-of-line and discontinued stock — the model is being replaced and the shelf space is needed.
  • Seasonal clearance — garden furniture in autumn, coats in spring. The retailer is paying to store something nobody is buying.
  • Ex-display and open-box — a real reduction for a real, disclosed flaw.
  • Superseded technology — last year's model when this year's lands. Often the best value in the shop, because the change between generations is usually smaller than the price gap.

What these have in common is that the discount exists to solve the seller's problem. That is the kind of discount that tends to be worth taking.

The one habit that replaces all four checks

Checking properly takes a few minutes per purchase, which is exactly why almost nobody does it and exactly why the tactics keep working. The practical fix is not more discipline. It is doing the comparison at the moment you are already on the page, before the decision has been made rather than after.

Common questions

Is it illegal to show a fake "was" price in the UK?

Misleading pricing is covered by UK consumer protection rules, and a reference price that was never a genuine selling price can fall foul of them. Enforcement sits with Trading Standards, and reports are usually made through Citizens Advice.

Does RRP mean anything?

Recommended retail price is a manufacturer suggestion, not a price anyone is obliged to charge. For many product categories almost nobody sells at RRP, which makes it a weak comparison point — a discount against RRP can be no discount at all against the market.

Are Black Friday discounts real?

Some are and some are not, and it varies by product rather than by retailer. The reliable signal is the same as any other day: what the item has actually cost over recent months, and what other shops charge for it right now.

Check before you buy, not after

Paste the link to anything you are about to buy. Bargn checks whether it is sold cheaper somewhere else, and whether something just as good costs less.

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