Smart shoppingMay 12, 2026 5 min read

How to Spot a Fake Discount (The Price History Trick)

That '$399 → $299' banner is often a fake discount. Here's how to use price history to tell a real deal from an inflated 'sale' — and never overpay again.

You've seen it a thousand times: a product listed at $399, slashed to $299, with a countdown timer and a 'lowest price ever!' badge. It feels urgent. It feels like a win. And very often, it's neither — the $399 'original' price is one the retailer almost never actually charged.

This is the single most common manipulation in online retail, and it works because shoppers anchor to the higher number. Once you've seen $399, paying $299 feels like saving $100 — even if the product has sold for $299 (or less) for the last three months.

The one check that exposes a fake discount

The fix is simple: ignore the strike-through price entirely and look at the price history. A genuine discount is a price that's actually below the recent average. A fake one is a 'sale' price that matches what the item normally costs anyway.

About three months of history is the sweet spot. It's long enough to capture the item's true baseline and any recent promotions, but short enough that the data reflects current pricing rather than a launch price from a year ago.

What to look for in the history

  • Is today's price below the recent average? That's a real discount.
  • Does the 'sale' price match the most common recent price? That's a fake discount — it's just the everyday price with a banner.
  • Has the listed 'original' price ever actually been charged recently? If not, it's an inflated reference price.
  • Is the price near its recent low, or near its high? Near the low is a genuine buying opportunity.
A discount is only real if the price is actually lower than usual. The percentage off means nothing without the baseline.

Why retailers do this

Inflated reference pricing is effective and, in many places, only loosely regulated. A high 'was' price increases perceived savings, urgency timers manufacture pressure, and 'lowest price' badges borrow credibility. None of it has to reflect what you'd otherwise pay.

The same product also swings in price across retailers at the same moment — so the 'deal' at one store can be beaten by the everyday price at another. Checking one listing's discount in isolation misses this entirely.

How Cartlyt does this for you automatically

Manually pulling up price history for every product is tedious. Cartlyt makes it easier: search in plain English, compare results with a TrustScore that grades price authenticity, review trustworthiness, and seller reputation, and add the item to your watchlist so Cartlyt tracks its price for you. When a 'sale' is above the typical range, you'll see it flagged before you click — and you can set an alert to buy only when the price hits a genuine low.

Best of all, Cartlyt takes zero affiliate kickbacks, so nothing is nudged up the rankings because a retailer paid for it. The price you see is the honest one.

Stop overpaying — let Cartlyt compare every retailer for you

One AI search compares current prices across multiple retailers, with TrustScores and price history on items you watch. Free to start.

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