Why a stamp card beats a standing discount
Both cost you margin, so the question is who you are paying it to. A discount is paid to every customer at the moment of purchase, regardless of whether it changed anything. A loyalty scheme is paid only after the behaviour you wanted has already happened.
Start your free trial →A discount pays for decisions already made
Most people buying at a discount would have bought anyway, so the majority of the money goes to changing nothing. It is the cleanest example of paying for an outcome you had already won, and it is invisible because the customers who would have paid full price do not announce themselves.
A stamp card pays after the fact
The reward only lands once someone has come back nine times, which is behaviour you can be reasonably confident you influenced. Everyone who visits once and never returns costs you nothing at all, so the spend concentrates entirely on the customers who are worth keeping.
Discounts reset your price, stamps do not
A standing discount teaches customers what your real price is, and going back up reads as an increase. A stamp card leaves the list price untouched — the tenth is free, the other nine are full price, and there is no expectation to unwind later.
The incidence question
In economics, incidence is the question of who actually bears a cost. It is the most useful lens for this decision and almost nobody applies it.
Take a café with a hundred customers a day and a €3 coffee.
A 10% standing discount costs €0.30 on every cup — €30 a day — and is paid to everyone: the regular who comes daily, the tourist who will never return, and the person who was already walking in when they saw the sign.
A ten-stamp card costs one free coffee for every ten bought, but only for customers who reach ten. The tourist costs nothing. The person passing through costs nothing. The daily regular costs €3 every two weeks, and they are precisely the customer you would pay to keep.
Same order of magnitude in spend. Completely different targeting.
What discounts are genuinely good at
Discounting is not a mistake — it is a tool for a different job:
- Acquisition. Getting someone through the door for the first time.
- Clearing stock. Anything time-limited or perishable.
- Filling dead capacity. A quiet Tuesday afternoon that would otherwise be empty.
Notice that all three are about people or slots you currently do not have. Loyalty is about people you already have and might lose.
The price-anchoring problem
There is a second cost to standing discounts that shows up much later. Run 10% off for a year and that is simply your price. Removing it is experienced as a price rise, with all the complaint that implies, and you have permanently reset what customers think the thing is worth.
A stamp card never touches the list price. Nine coffees at full price and a tenth free leaves your pricing intact and nothing to walk back.
A sensible split
- Discount for the first visit. A neighbour offer, a launch, a partnership.
- Stamp card for every visit after. Full price, with the tenth free.
- Never both on one transaction. A discounted cover does not earn a stamp; otherwise you have paid twice to sell one coffee.
The questions everyone asks
Is a stamp card just a 10% discount with extra steps?
Arithmetically it looks similar, but the incidence is completely different. A 10% discount pays every customer including one-offs; a ten-stamp card pays only those who returned nine times. The same margin buys you loyalty from regulars rather than a rebate for strangers.
What about a launch discount for a new shop?
That is a genuinely different job and discounting does it well. A launch offer buys trial from people who have never walked in, which is exactly what a loyalty scheme cannot do. Use a discount to get the first visit, and a stamp card to get the second through tenth.
Do stamp cards work on price-sensitive customers?
Less well, and it is worth being honest about it. Someone choosing purely on price will go wherever is cheapest that day regardless of stamps. Loyalty schemes work on customers who are close to indifferent between two options — which is most people, most of the time.
Can I do both at once?
You can, but not on the same transaction, or you are paying twice for one visit. Most shops keep the discount for acquisition — a first-visit offer, a local partnership — and the stamp card for retention, with discounted covers simply not earning a stamp.
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