If you're setting up a loyalty card for your café, barbershop or car wash, one question comes up before anything else: how many stamps should it take to earn a reward?
Get it wrong in one direction and customers give up halfway. Get it wrong in the other and you're handing out free products that eat your margin. This guide walks through a simple way to pick the right number and the right reward.
Why the stamp count matters so much
A loyalty card is a promise: come back a few more times and you'll get something. Customers quietly judge whether that promise is worth it the first time they see the card.
- Too many stamps (say, 20 for a free coffee) and the reward feels out of reach. The card gets ignored.
- Too few stamps (say, 3 for a free haircut) and you're giving away a big share of your revenue to people who would have come back anyway.
The goal is a reward that feels reachable within a few weeks and still costs you only a small slice of what the customer spends to earn it.
Start with how often customers visit
The best stamp count depends on how often a typical customer comes in. A good rule of thumb: most regulars should be able to earn a reward in about 4 to 8 weeks.
- Cafés and bakeries (several visits a week): 8 to 10 stamps
- Restaurants and takeaways (about once a week): 6 to 8 stamps
- Car washes (every 2 to 3 weeks): 5 to 8 washes
- Barbershops and salons (every 3 to 5 weeks): 5 to 6 visits
If the reward takes longer than a couple of months, many customers will forget about the card before they get there.
Check the math on your reward
Next, make sure the reward is affordable. Compare what the reward costs you with what the customer spends to earn it.
Take a café selling coffee at $4. With a "buy 9, get the 10th free" card, the customer spends $36 before claiming the reward. If the free coffee costs you about $1.20 in ingredients and cup, the reward costs you roughly 3% of what that customer spent, while it feels like a $4 gift to them.
A useful ceiling for most small businesses: keep the reward's cost under about 10% of the spend needed to earn it. The coffee example sits comfortably below that. Go much higher and you're discounting too heavily.
Pick a reward people actually want
The best rewards are:
- Your core product. A free coffee, a free wash, a free haircut. Customers already know its value.
- Easy to explain. "10th coffee free" beats "earn 250 points for a 15% voucher."
- Cheap for you, valuable to them. Upgrades, add-ons and premium versions (a large drink, a wax with the wash, a beard trim) often cost little but feel generous.
Give customers a head start
One of the most useful findings in loyalty research comes from a car wash study by Joseph Nunes and Xavier Drèze, published in the Journal of Consumer Research in 2006.
Customers received one of two cards. Both needed 8 more washes for a free one. But one card had 8 empty spaces, while the other had 10 spaces with 2 already stamped. Only 19% of customers finished the first card, while 34% finished the one with a head start.
The lesson: a card that starts with a stamp or two already filled feels like progress, and progress keeps people coming back. Consider giving a welcome stamp on the first visit.
Keep it simple at the counter
Whatever you choose, the card should be easy for your staff to stamp and easy for customers to follow. Clear rules ("1 stamp per visit", "reward on the 8th wash") avoid awkward conversations at the till.
A digital loyalty card helps here. Customers can see exactly how many stamps they have left every time they open their phone wallet, instead of guessing from a crumpled paper card they may have left at home.
A quick checklist
- Estimate how often your typical customer visits
- Set a stamp count they can reach in about 4 to 8 weeks
- Choose a reward based on your core product
- Check the reward costs you under about 10% of the spend needed to earn it
- Add a welcome stamp to give customers a head start
- Review after a month or two and adjust if few people are finishing the card
Try it with LoyVue
With LoyVue, you can set your own stamp count and reward, and your customers keep the card in Apple Wallet or Google Wallet, with no app to install and no hardware to buy. Plans start at $10 a month, so you can test your reward and adjust it as you learn what brings your regulars back.
