Most loyalty programs are priced by copying someone else's numbers. A store picks "1 point per dollar, 100 points for $5 off" because a competitor does, never checks what that costs against its own margins, and then either quietly loses money on every redemption or offers a reward so thin nobody bothers. Both failures come from the same skipped step: doing the math first.
Here's how to price rewards so the program drives repeat purchases without eating the profit those purchases are supposed to protect.
Start From One Number: Reward Cost as a Percentage of Order Value
Every loyalty reward has an effective discount rate, and that's the only number that matters at the start.
If customers earn 1 point per dollar and redeem 100 points for $5 off, they get $5 back for every $100 spent. That's a 5% effective discount. Whether 5% is fine or fatal depends entirely on your margin - and that's the calculation most stores never run.
Work out your reward rate as a percentage, then hold it against your gross margin. If you run 60% margins, a 5% reward rate is comfortable. If you run 25% margins on heavily competitive products, 5% is a fifth of your profit, and you need to either lower the rate or make redemption harder to reach.
Set the Rate to Your Margin, Not the Competition
There's no universal correct reward rate. There's only the rate your margin can carry.
- High margin (beauty, supplements, digital) - you can afford a generous 4 to 6% effective rate, and generosity here drives the behavior you want.
- Mid margin (apparel, accessories) - 2 to 4% is the honest band; enough to feel real, not enough to hurt.
- Thin margin (electronics, commodities) - keep the effective rate at 1 to 2% and lean on non-discount rewards instead.
Copying a beauty brand's reward rate onto electronics margins is how programs quietly bleed. Set the number from your own P&L.
Use Rewards That Don't Touch Margin
The best loyalty rewards aren't discounts at all, and this is where thin-margin stores win.
Free shipping costs you your actual shipping cost, not a slice of product margin - and customers routinely value it above an equivalent dollar discount. Early access to a launch, a free gift with purchase (priced at your cost, not retail), or exclusive products cost far less than their perceived value. A reward that feels worth $20 to a customer but costs you $6 is a better deal for both sides than $10 straight off.
Build the program around these and reserve straight discounts for the rewards customers specifically want.
Make Points Fund the Next Purchase, Not the Current One
A reward that discounts the order the customer was already going to place is pure margin loss. A reward that only unlocks on the next order turns the cost into a retention investment.
This is why redemption thresholds matter. If a reward is reachable within a single average order, you're often just discounting a sale that would have happened anyway. Set the threshold so it takes two or more purchases to earn a meaningful reward, and the points become the reason for the second order rather than a rebate on the first.
Protect the Rate With Earn Caps and Tiers
Two levers keep a generous-feeling program from becoming a costly one.
Earn caps stop points inflation from promotions stacking - useful when you run double-points events on top of an already-competitive discount. VIP tiers let you concentrate generosity where it pays back: your top spenders get the richest rewards, which is exactly where a higher reward rate is justified by lifetime value, while casual buyers sit at a leaner baseline. On Keystone, VIP tiers are available from the Standard plan and custom earning rules from Starter, as of July 2026, so both levers are within reach without the top plan.
The Honest Checklist
Before you launch, answer four questions:
1. What's my effective reward rate as a percentage? 2. Can my gross margin carry that rate? 3. Which rewards can I offer that don't cost product margin? 4. Does my redemption threshold fund the next order or discount the current one?
Get those four right and the program pays for itself out of the repeat purchases it creates. Skip them, and you're running a discount you forgot to budget for.
Want to build a program that respects your margins?
Install Keystone Loyalty Rewards for free right now.
Related reading
- When Should Loyalty Points Expire?
- Which Keystone Loyalty Plan Do You Actually Need?
- Why Customer Tiers Need Names, Not Numbers
Ready to put this into practice? Keystone Loyalty & Rewards includes custom earning rules, VIP tiers and a free plan to start.