VKT Toolkit Β· September 25, 2026 Β· 9 min readIs That Sale Real? How to Spot Fake Discounts Before You Buy (2026)
A product page says $229 β $149, save 35%. The badge is bright, the countdown timer is ticking, and you have about forty seconds to decide before the "offer ends". That pressure is the point: a discount is most persuasive exactly when you have no way to check it.
You cannot verify a discount in forty seconds, but you can in two minutes β if you know which number to doubt and what evidence to bring. Here are six checks, ordered by how often they change the answer.
How a Fake Discount Is Built
Almost every misleading discount uses the same mechanism: the reference price β the number being crossed out β is set by the seller, not by the market. Nothing obliges it to be a price anyone ever paid.
Three labels get mixed together on purpose:
- MSRP / list price. A manufacturer's recommendation. Real as a number, often irrelevant, because the product may have never sold near it.
- "Was" / previous price. A claim about the seller's own history. This is the one worth checking, and in the EU a price-reduction announcement must show the lowest price the seller applied in the previous 30 days.
- Comparison price. "Elsewhere $199" β a claim about other shops, which may be a single obscure listing.
Percentage badges amplify whatever reference is chosen. "Up to 70% off" can be literally true while the item in front of you is 8% off.
Check 1 β Doubt the Struck-Through Price
Ask one question: was this actually sold at that price, recently? If the answer is unknowable, treat the percentage as decoration.
Quick ways to get closer to an answer:
- Check the same product on two other shops. If everyone's "normal" price is the sale price, there is no sale.
- Look for the unit's price history β your own record, or a cloud tracker if it is Amazon.
- Notice perpetual sales. A store that is "closing down" for eleven months is not closing down.
Check 2 β Match the Model, Not the Title
The most common non-fraudulent-but-misleading trick: the discount applies to a different variant than the one you are looking at. A 512 GB model on sale, a 1 TB model at full price, one page showing both.
Two habits fix this:
- Copy the model number, not the marketing name. "Pro Max 2026" is not an identifier; "SM-S938B/512" is.
- Record it with the price. A price without a model number is a rumour. This is the field people skip, and it is the one that makes every later comparison trustworthy or worthless.
Check 3 β Look at the Curve, Not the Badge
A badge is a claim about today. A price curve is evidence about weeks. If you captured the item before the sale, you already have the answer, and it usually looks like one of three shapes:
- Flat line. The "discount" did not move the price at all.
- Spike then drop. The price rose shortly before the sale and fell back to where it was. This is pre-sale inflation, and it is the most common real abuse.
- Genuine step down. The price is measurably below the recent range. That is an actual discount β buy it if you need it.
VKT Item Pin builds that curve locally: hover a product, pin it, and each later pin on the same product appends a price point to its history. Re-capturing tracked items never counts against the free 50-product limit, so a pre-sale baseline costs nothing to keep.
Check 4 β Cross-Store Reality Check
One store's "was" price is unverifiable from inside that store. The same model at two other shops is verifiable in about ninety seconds.
What you are looking for:
- The other shops' everyday price β if it matches this "sale" price, the sale is the market price.
- Whether the model exists elsewhere at all β some "exclusive" models exist to be incomparable.
- Delivered cost, not sticker price β a Β£12 shipping charge quietly cancels a Β£10 discount.
Check 5 β Watch the Calendar
Sales have seasons, and so does price inflation. Around Black Friday, Prime Day, Singles' Day and end-of-season clearances, some sellers raise the base price in the weeks before, then "cut" it back to the original level.
The defence is boring and effective: capture the item a few weeks before the sale window. Two or three weeks is usually enough; about 30 days is ideal, because that is also the reference window used in EU consumer rules. A single pre-sale pin turns every later claim into something you can check.
Check 6 β Read the Extras
Discounts are often recovered somewhere else on the page. Before checkout, look for:
- Shipping and handling that only appears in the last step.
- Coupon-dependent pricing β the headline price requires a code that expires with the countdown.
- Bundle padding β "with free accessory" where the accessory costs the seller little and the bundle price is unchanged.
- Wording β "from", "up to", "selected lines" and "members' price" all mean the badge does not apply to what you are looking at.
- Return conditions β a final-sale clearance is a different risk from a normal return.
None of these are fraud. All of them change what the discount is actually worth.
Build Your Own Reference Before the Sale
Every check above is easier if you already have data. The routine takes under a minute per item:
- Pin candidates two to four weeks early β on the listing grid if you are comparing several, no need to open each page.
- Pin again on the sale day β same product, new point on the same curve.
- Pin one competitor on the same day β the same model at another shop gives you the market price, not just one store's claim.
- Export a JSON backup occasionally β the data lives only in your browser, so the export is your only copy.
With three points you can see the shape of the "discount". With six you can see the seller's habit.
Red Flags and What to Do
| Red flag | What it usually means | What to do |
|---|---|---|
| Reference price far above every other shop | Inflated anchor | Compare the model at two other stores |
| Price rose shortly before the sale | Pre-sale inflation | Check your own earlier capture |
| Sale badge on a different variant | Variant switching | Match the model number, not the title |
| "Was" price with no date attached | Unverifiable claim | Treat the percentage as decoration |
| Discount appears only after entering a code | Real but conditional | Compare the final checkout total |
| Store has been "closing down" for months | Permanent sale | Ignore the countdown entirely |
| Delivered cost equals the pre-sale price | Discount absorbed by fees | Add shipping before comparing |
And the honest limits of doing this yourself: nothing watches the price while you are away, so you have to re-pin to refresh a number; your history starts when you start, not before; and clearing your browser data erases it unless you export. Those are the costs of keeping the evidence on your own machine instead of someone else's server.
Frequently Asked Questions
Is a high struck-through price illegal?
Not automatically. A manufacturer's recommended price can be a legitimate reference even if few people paid it. Rules tighten when a seller claims its own previous price: in the EU, a price-reduction announcement must show the lowest price applied in the previous 30 days. Enforcement and definitions vary by country, so treat the number as a claim to verify rather than a fact.
How far before a sale should I start recording prices?
Two to four weeks is usually enough, and about 30 days is ideal because it matches the reference-price window used in EU consumer rules. Capture the item once well before the sale, once during it, and once after β three points are enough to see whether the price actually moved.
Can an extension tell me whether a discount is fake?
It can show you your own recorded history, which is often decisive: if a product never sold at the claimed price during the weeks you watched it, the reference price is not credible. What it cannot do is verify what the seller charged before you started looking.
Do fake discounts happen on big marketplaces too?
Yes. Anywhere a seller sets its own reference price, the number can be inflated. Large marketplaces show list prices, "was" prices and percentage badges from many sellers, and the same model can carry different reference prices in different listings.
What is the single most reliable check?
Compare the same model number at more than one store on the same day, and check it against your own earlier capture. Price is only meaningful once the product is identical and the date is known β most fake discounts collapse on one of those two.
Bottom line: the crossed-out number is the seller's claim, not a fact. Verify it with a model number, a second store and one capture from before the sale β in that order. VKT Item Pin collects that evidence locally: hover, pin, re-pin to add price points, 50 products free with unlimited re-captures.
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