Every week, millions of coupons circulate online, in stores and on mobile apps. Finding these deals is easy. The real challenge is knowing whether they actually save you money or encourage you to spend more than you planned.
How to calculate the real savings from a coupon
Have you ever used a three-euro coupon on a product you never normally buy? That’s a classic trap. The discount shown doesn’t always translate into net savings.
To work out how much you’re really saving, subtract several costs from the amount stated on the coupon.
- The extra cost compared with your usual choice: a two-euro coupon for a premium brand that costs three euros more than your regular brand leaves you one euro worse off, not two euros better off.
- The trip to a specific store: if the coupon is only valid at a distant retailer, fuel or travel time eats into your savings.
- An unplanned purchase: using a coupon on a product that isn’t on your shopping list is spending, not saving. A three-euro discount on an eight-euro item you wouldn’t have bought still means spending five euros.
A simple method is to note how much you would have paid without the coupon (for your usual product at your usual store). The difference between that amount and what you actually paid is your net saving. If the result is negative, the coupon cost you money.
Online coupons: where to look without getting overwhelmed
Specialist platforms group coupons by retailer or product category. Some sites rely on community sharing, with users flagging deals they find. Others compile promotions directly from partner brands. Troc Radin and coupons is a good example of how this works, bringing together deals verified by active users.
Limiting yourself to two or three reliable sites helps you stay focused. Keeping tabs open across ten different platforms takes time, and time has value. Choose one general-interest site and one focused on the things you buy regularly (groceries, personal care, baby products).
Cashback apps are another option. They work differently from traditional coupons: you pay the regular price, then receive a partial refund a few days later. The advantage is that you choose the product first and then check whether there’s an offer. This reduces the risk of impulse buying.
Digital coupons on electronic receipts
Since stores stopped routinely printing receipts, some shopping vouchers now appear only on receipts sent digitally. Check your electronic receipts after every shopping trip. They sometimes include discounts for your next purchase, and these can expire quickly.
Food promotions: what the regulations mean for consumers
Discounts on food products don’t work the same way as those on electronics or clothing. Food promotions are regulated by law, which limits dramatic price cuts. In practice, this means that combined offers on food rarely exceed a certain regulatory threshold.
This restriction explains why combining a coupon with an in-store promotion doesn’t always deliver the savings you expect. The retailer may refuse to let you combine offers or cap the total discount.
The 30-day rule for reference prices
Since May 2022, the reference price shown during a promotion must be the lowest price charged by the retailer in the previous 30 days. This rule protects consumers against fake discounts (raising a price before marking it down).
In practice, compare the discounted price with what you were actually paying in the previous weeks. If the crossed-out price seems unusually high, check the product’s price history on a comparison site.
Anti-waste sections and short-dated products: an alternative to traditional coupons
Supermarket sections for products nearing their use-by date offer immediate discounts, with no code or conditions. The discount is applied directly to the label, often cutting the original price by between a quarter and a third.
These anti-waste deals are for products you would have bought anyway (yogurt, meat, fresh meals). That makes the savings genuine, as long as you use the product before its expiry date.
The downside: these sections are snapped up early in the morning. Adjusting your shopping time can help you take advantage, but only if it doesn’t disrupt your routine. A 20-minute detour to pick up a pack of yogurt for one euro less doesn’t make much sense.
Build a money-saving routine without spending hours on it
Looking for coupons can quickly become time-consuming. The goal is to cut expenses, not turn grocery shopping into a part-time job.
- Make your shopping list before looking for coupons. Never the other way around. Your list sets out what you actually need; coupons should only be an added bonus.
- Check your two or three usual sources once a week, on the day you plan your shopping. Not every day.
- Check your electronic receipts within 48 hours of shopping to spot coupons with short validity periods.
- Set a realistic monthly savings goal and track it. Comparing your total savings with the effort involved will show you whether it’s worth it.
Coupons can be a useful way to save, as long as you stay in control of your purchasing decisions. A discount only counts as a saving if it applies to a product you would have bought anyway, at the same time and under the same conditions. Keep this in mind, and coupon hunting can become a genuine budgeting tool.
