Loyalty cards, and whether yours is worth printing
A stamp card is cheap, low-tech and works well for some businesses and not at all for others. The difference is how often people come back.
The short version
A stamp card is worth printing if customers could plausibly come back every week. Ask for six to eight stamps, stamp the first box the day you hand it over, and make the reward the thing they already buy. For salons and clinics, the same card works better carrying the date of the next appointment.
The stamp card is one of the oldest ideas in retail. It survives because it’s cheap, needs no app, and does one specific thing: it makes the next visit feel like progress rather than another purchase.
It only works under one condition, though. Businesses that ignore it print a box of cards that live in a drawer.
Whether a loyalty card works for your business
A loyalty card works when customers buy from you often - weekly, or close to it. It also needs a real choice: the place forty metres away is just as easy, and nothing much separates you on a given morning.
Café, sandwich shop, barber
Plumber, electrician, roofer
Nail bar, car wash, dog groomer
Estate agent, dentist
Something bought weekly
Something bought every few years
A competitor on the same street
The only one in the area
If you’re on the right-hand side of that table, you don’t need a loyalty card. You need to be remembered in two years. That’s what a business card with your details on it does, and what reviews do for people who never met you.
How many stamps a loyalty card should have
Six to eight stamps suits something bought weekly. Ten starts to feel like a long way for a free coffee, and cards that feel like a long way get lost.
One trick genuinely changes behaviour: give the first stamp free when you hand the card over. Two well-known studies back this up.
- A head start gets cards finished. Researchers turned “a task requiring eight steps into a task requiring 10 steps but with two steps already complete”. That head start “increases the likelihood of task completion and decreases completion time” (Nunes and Drèze, Journal of Consumer Research, 2006).
- People speed up near the reward. In a real café reward programme, customers bought coffee “more frequently the closer they are to earning a free coffee”. Those given a 12-stamp card with two bonus stamps finished the ten purchases faster than those given a plain 10-stamp card (Kivetz, Urminsky and Zheng, Journal of Marketing Research, 2006).
In practice: a card with eight boxes and one already stamped is a better card than one with seven empty boxes, even though both ask for seven purchases. Starting something is harder than continuing it.
What the reward should be
The best loyalty reward is the thing customers already buy from you. A free coffee on a coffee card. A free wash on a car wash card.
Not a branded mug, not ten per cent off, and not entry into a draw. Those all read as the business avoiding the cost of the thing you came for, and the obvious reward is what makes the card worth carrying.
Keep reviews out of it. Don’t offer a stamp, a discount or a free item for a Google review. Google calls incentives for reviews “fake engagement” and says they are “strictly prohibited” (Google Business Profile Help, 2026). Ask for reviews separately, and ask everyone.
Designing the stamp card itself
A good stamp card is small, easy to mark and explains itself. What that means in practice:
- Wallet sized, so it’s with them rather than at home.
- Uncoated stock, because a stamp or a pen has to mark it. This is the one item where a gloss finish actively breaks the product.
- Your name and the reward on the front, so a card found in a coat pocket in March explains itself.
- No expiry date, unless you genuinely need one. An expired card is a small insult for a very small saving.
- A stamp, not a pen. A rubber stamp costs very little, is much harder to copy, and makes the whole thing feel less like homework.
Make the card match the rest of your printed work. The same logo, colours and fonts as your menu and your sign make a small card look like it belongs to a real business.
Try this now
Before printing a thousand, print fifty and run them for a month. You’ll find out whether the number of stamps is right while it’s still cheap to change.
The appointment card version
For a salon, a clinic, a dentist or a garage, an appointment card does a different and more valuable job than a stamp card: it carries the date of the next visit.
Book the next appointment while the customer is standing at the desk, and hand them a card with the date written on it. For many appointment businesses, that’s the simplest thing they can do about gaps in the diary. It costs one sentence and a card.
Put your name, your number and a space for the date on the front. Use the back for a QR code to your reviews. The card is then doing two jobs on one piece of print.
A few common questions.
How many stamps should a loyalty card have?
Six to eight for something bought weekly, and consider stamping the first box free when you hand the card over. Research on reward cards found that people given a head start were more likely to finish and finished faster than people asked for the same number of purchases on an empty card.
Are paper loyalty cards better than an app?
For most single-site local businesses, yes. An app costs money every month, needs the customer to download something, and gives you a reason to collect personal data you then have to look after. A card costs very little and works for everyone, including people who do not want another app.
What should the reward be?
The thing they came for. A free coffee on a coffee card. Discounts and branded merchandise both read as the business avoiding the obvious reward, and the obvious reward is what makes the card worth carrying.
Can I give a stamp for a Google review?
No. Google prohibits offering incentives, such as free or discounted goods or services, in exchange for reviews, and treats it as fake engagement. Keep the loyalty card for purchases and ask for reviews separately.
Do I need to worry about people forging stamps?
Barely, at this scale, and a rubber stamp with your own mark on it makes it impractical anyway. The cost of a handful of extra free coffees is far less than the cost of a system that treats your regulars as suspects.
