Two shopping days, one underlying question
Black Friday and the Cyber Monday that follows it have grown from a single US retail date into a period stretched across several days, sometimes weeks, in many countries. The dates move each year, since Black Friday sits the day after the US Thanksgiving holiday and Cyber Monday the following Monday, but the underlying question for a shopper stays the same every year: is the advertised reduction measured against a price that was ever really charged.
The EU rule that answers this directly
Since the EU's Modernisation Directive took effect, any trader in the EU announcing a price reduction has to show the lowest price it charged for that product in the 30 days before the reduction, not an inflated price set shortly beforehand just to make the cut look bigger. The UK follows a closely related principle under its own consumer protection and pricing rules. This does not mean every "was" price is automatically genuine, since enforcement varies, but it does mean shoppers in the EU and the UK have a specific reference point to check a claimed discount against, rather than only the trader's word for it.
The US has a different, looser standard
In the US there is no single federal law requiring a specific reference period like the EU's 30 days. The Federal Trade Commission's guidance discourages deceptive former-price claims in general terms, but enforcement is less uniform and there is no fixed lookback window written into a nationwide rule. This is one of the clearer regional differences around sales periods, and it means a "50% off" claim carries a somewhat different legal weight depending on which country the shop is trading in.
Practical ways to check a price without relying on the label
Tracking a product's price over the weeks before a sale, where that is possible, is the most direct way to judge a discount. A price history tool or extension, where available, shows this at a glance. Where no history is available, comparing the same product across two or three retailers on the day of the sale gives a rough but useful check, since a genuinely competitive price tends to be similar across sellers, while an inflated "was" price used to dress up a discount tends to stand out as unusually high compared with the rest of the market.
Watching the total, not just the percentage off
A large percentage figure is the most visible number on a Black Friday or Cyber Monday listing, but it says nothing about shipping costs, bundle conditions, or whether the discounted item is genuinely the model wanted rather than a similar but cheaper variant. Reading the full listing, including any conditions attached to the discount, avoids the most common disappointment from this period, which is a total at checkout that turns out higher than the headline percentage suggested.
Where a code fits into the picture
A voucher code or coupon code can stack with an existing sale price on some sites, and not on others, so it is worth checking whether the code actually reduces the sale price further or simply duplicates a discount already applied automatically. We check codes across 527 shops in 22 countries several times a day on daily-coupons.info, including during Black Friday and Cyber Monday, and listings can be browsed by category or by store without needing an account.
A short checklist for the day
- Check whether the "was" price reflects a price genuinely charged in the weeks before the sale.
- Compare the same product across two or three retailers rather than trusting one listing alone.
- Read the full checkout total, including shipping, before comparing it with the advertised percentage.
- Check whether a current voucher code or coupon code stacks with the sale price or duplicates it.
Frequently asked questions
Does EU law guarantee every Black Friday discount is genuine?
Not automatically, but it does require the reference price shown to be the lowest price charged in the previous 30 days, which gives shoppers a specific, checkable standard rather than an unregulated claim.
Why do some Black Friday deals look identical to a normal week's price?
Some retailers keep prices relatively stable and rely on the shopping period's attention rather than a deep cut, or the item was already discounted before the event. Comparing the price against its recent history is the most reliable way to tell.
Can a coupon code still help during Black Friday if the price is already reduced?
Sometimes. Whether it applies depends on the individual shop's terms, since some allow a code to stack on top of a sale price and others do not. It is worth checking at checkout rather than assuming either way.
