What Should Your Punch Card Reward Be? The Simple Math
Every loyalty card asks two questions: how many stamps, and what is the prize? Get them wrong and the card either gives away margin to people who were coming anyway, or dangles a reward so distant nobody changes their behavior for it. The right answers come from two numbers you already know: how often a good customer visits, and what your product costs you versus what it sells for.
Rule one: a regular should finish a card in about a month or two
The card motivates only while it feels finishable. Work backwards from your rhythm:
- Coffee, lunch spots (several visits a week): 9 or 10 stamps. A regular finishes in two to three weeks.
- Car washes, farmers markets, dog grooming (roughly weekly to biweekly): 5 to 8 stamps.
- Salons, barbers, massage (every three to five weeks): 5 or 6 stamps.
- Dentists and the truly infrequent (a few visits a year): 4 to 6 stamps, and accept the card is a multi-year relationship, which is fine when it cannot be lost.
Rule two: reward in product, price it in wholesale
A free item beats a discount of the same value, every time. "The 10th is on us" is a gift; "10 percent off" is math homework. And the free item costs you its ingredient cost, not its menu price: a free latte on a card that required nine paid ones costs you cents on each of those nine purchases.
For high-ticket services, do not give away the whole service. A salon giving a free full set after five visits is refunding a fifth of revenue; a free add-on (nail art, a treatment, an upgrade) rewards just as strongly at a fraction of the cost, and samples a service the client may start paying for. The same logic covers car wash upgrades.
Rule three: make it legible in one sentence
"Buy 9 coffees, the 10th is on us." "Five visits, free loaf." If the reward needs an asterisk, it leaks trust at the exact moment you are trying to build it. No blackout days, no minimum spend, no "up to."
Worked examples
- Café: 10 stamps, any free drink. Cost to you per completed card: one drink's ingredients against nine full-price sales.
- Nail salon: 5 visits, free nail art add-on. Full salon playbook here.
- Car wash: 5 washes, free wax upgrade; or 8 washes, free basic wash.
- Market stand: 5 market days, free loaf or bunch. Vendor guide here.
- Smoothie bar: 8 stamps, free regular smoothie. Frequency sits between coffee and lunch.
One more rule: honor the reward like you mean it. The redemption moment is the whole point, the story your customer tells. A grudging free coffee undoes a year of stamps.
Whatever you pick, you can change it later without reprinting anything: on a digital card the reward text updates on every card in every Wallet with one push. That flexibility alone is a reason to run the card digitally.
Quick answers
How many stamps should a loyalty card require?
Match the count to visit frequency so a regular finishes a card in one to two months. Daily-habit businesses like coffee: 9 or 10. Weekly ones like markets or car washes: 5 to 8. Monthly ones like salons: 5 or 6.
Should the reward be a free product or a discount?
A free item almost always beats an equivalent discount. 'The 10th coffee is on us' feels like a gift; '10 percent off' feels like arithmetic. Free items also cost you their wholesale price, not their retail price.
What if customers only visit for the reward?
That customer barely exists. A stamp card pays out a small reward after many full-price purchases; someone gaming it is still your best customer by definition. Set a reward you can honor with a smile every time.