The question sounds like a matter of personal preference, but it’s actually a math problem. Three models, three completely different effects on your margin. Cashback is charged immediately, points only when redeemed, and the stamp card falls somewhere in between. And for your customers, the perceived value in all three models lies somewhere other than your actual costs.
This article breaks it down. You'll find the calculation method for the value of a point, a model calculation covering all three options, and a decision matrix based on margin, frequency, and voucher value. Plus, the psychological aspect: Why a five percent point reward has a stronger impact than a five percent discount.
The three models side by side
| Point System | Stamp Book | Cashback | |
|---|---|---|---|
| Mechanics | Sales become points; points become rewards | A certain number of purchases earns you a free item | A percentage of sales is converted into credit |
| Clarity | "mittel" needs an explanation | very high | very high |
| When Costs Are Incurred | upon redemption | when the card is full | immediately upon purchase |
| Controllability | high; points can be weighted | low; a purchase is a stamp | average, based on the percentage |
| Effect on Perception of Price | neutral, no reference to price | neutral | increased price sensitivity |
| Handles fluctuating voucher values | yes | no | yes |
| Data Quality | high, revenue per person | average, purchases per person | high, revenue per person |
| Effort at the point of sale | low to moderate | low | low |
What a Point Is Really Worth
This is where many programs make a crucial mistake in their thinking: there isn't just one point value—there are two. One is what your customers see, and the other is what you pay. Keeping the two separate is half the battle in creating a program that pays off.
Here’s an example based on arbitrary assumptions: Your premium is a product with a retail price of 20 euros and a cost price of 9 euros. By that point, someone has generated 400 euros in sales. In practice, customers receive five percent back. It costs you 2.25 percent. With a five percent discount, it would actually be five percent, and your price would be permanently lowered.
Redemption Rate and Maturity: The Hidden Cost
Now we come to the second level. Not every claim is processed. The portion that is never claimed is called “breakage” in technical jargon. In mathematical terms, this lowers your costs, because you only pay for what is actually claimed.
At the same time, breakage isn’t a profit you should plan on. Companies with many unresolved claims usually have a problem: the reward threshold is too high, the rewards are unattractive, or communication is lacking. And a sudden expiration is perceived as a breach of trust. That’s exactly why expectations for immediately redeemable rewards are so high: The DACH Loyalty Report 2026 shows figures of 80 percent in Germany and 87 percent in Austria.
| Effective Costs | Here's how to calculate it | Example |
|---|---|---|
| Nominal Costs | Cost of the premium divided by the required revenue | 9 € / 400 € = 2.25 percent |
| Effective Costs | Nominal cost multiplied by the redemption rate | 2.25 percent × 0.70 = 1.58 percent |
| Cashback Comparison | Percentage multiplied by the redemption rate | 2.00 percent × 0.90 = 1.80 percent |
Why Points Have a Different Effect Than Discounts
The economic benefit is only half the story. The other half is perception. Four mechanisms explain why a collectible model fosters greater loyalty than a direct discount.
- Anticipation. A discount is available at checkout. A loyalty program keeps customers coming back for weeks. That time works in your favor.
- Visible progress. Seeing seven out of ten fields filled in creates a sense of momentum that a percentage figure simply doesn't convey.
- Proximity to the goal. The closer the reward gets, the more people are willing to bring forward their next purchase. This effect is called the goal gradient.
- Head Start. Players who don’t start the game at zero but with two free spaces are more likely to stick with it. This effect is called “Endowed Progress,” or gifted progress. In practice, this means that twelve spaces with two starting stamps are more motivating than ten empty spaces, even though the effort required is the same.
Cashback doesn't have these mechanisms. It's honest, clear, and takes effect immediately. But it doesn't create any progress that could be lost, nor does it give customers a reason to come back today. Anyone who chooses cashback should do so deliberately: as a pricing strategy, not as a customer retention tool.
Model Calculation: Same Customer Base, Three Models
To make the numbers comparable, here's a calculation based on the same initial conditions. All values are example assumptions, not benchmarks. Plug in your own numbers, and then it will be reliable.
Assumptions: 1,000 active members, average receipt amount of 40 euros, twelve purchases per year. This results in program revenue of 480,000 euros.
| Point System | Stamp Book | Cashback | |
|---|---|---|---|
| Design | 1 point per euro, bonus starting at 400 points | Every 10th purchase gets you a free item | 2 percent credit on every purchase |
| Premium, Selling Price | 20,00 € | 6,00 € | N/A |
| Premium Cost Price | 9,00 € | 2,20 € | N/A |
| Required Sales per Bonus | 400,00 € | 400,00 € | N/A |
| Perceived value | 5.00 percent | 1.50 percent | 2.00 percent |
| Nominal Costs | 2.25 percent | 0.55 percent | 2.00 percent |
| Assumed redemption rate | 70 percent | 85 percent | 90 percent |
| Effective Costs | 1.58 percent | 0.47 percent | 1.80 percent |
| Annual cost of €480,000 | about 7,560 € | about 2,240 € | about 8,640 € |
| Costs in the worst-case scenario | about 10,800 € | about €2,640 | about 9,600 € |
The comparison reveals two things. First, when voucher values are stable, the stamp card is the most cost-effective model in terms of perceived value. Second: A 2 percent cashback rate seems modest, but it costs more than the points program, which feels like 5 percent. This is exactly where many programs fail—they were calculated based on the competition rather than on their own margin.
Taxes and Accounting: What You Should Clarify First
The three models are not treated the same way in accounting. From an economic perspective, cashback and discounts are expenses or a reduction in revenue. Outstanding items and unredeemed coupons, on the other hand, represent a liability to customers that still exists as of the balance sheet date. In Germany, a provision may need to be set aside for this.
It’s also worth taking a closer look from a sales tax perspective. With gift certificates, a distinction is made between whether the specific service to be purchased is determined at the time of issuance or only upon redemption. This determines when the tax becomes due. Pure discount coupons follow a different set of rules.
Decision Matrix: Your Model in Four Questions
| Criterion | Point System | Stamp Book | Cashback |
|---|---|---|---|
| Gross margin below 15 percent | suitable | highly suitable | risky |
| Gross margin over 40 percent | highly suitable | suitable | suitable |
| Purchasing frequency: daily to weekly | suitable | highly suitable | less suitable |
| Purchasing frequency: monthly or less frequently | highly suitable | less suitable | suitable |
| The value of the voucher fluctuates significantly | highly suitable | not suitable | highly suitable |
| No connection to a cash register | limited | highly suitable | limited |
| Goal: Build rapport | highly suitable | highly suitable | less suitable |
| Goal: Attract new customers | suitable | suitable | highly suitable |
| Little time for care | suitable | highly suitable | suitable |
Industry Classification at a Glance
| Industry | Recommendation | Justification |
|---|---|---|
| Bakery, Coffee Shop, Snack Bar | Stamp Book | Daily purchases, very similar receipt totals, slim margin |
| Gastronomy | Stamps Plus Points | Stamps for drinks or lunch purchases; points for everything else |
| Fashion Retail | Points, later levels | Highly variable shopping baskets, infrequent purchases |
| Beauty and Hair Salon | Stamp Book | Consistent rhythm, clearly defined performance |
| Pharmacy | Points | Mixed Shopping Carts: Service Benefits Instead of Discounts |
| Beverage and Specialty Retailers | Points or Rewards | Wide range of voucher values |
| Online Retail | Cashback or Points | Comparing prices is part of the purchasing decision anyway |
Those who want to delve deeper will find industry-specific analyses for the restaurant industry, bakeries, the fashion retail sector, pharmacies, and the beauty and wellness industry in the hello again Industry Reports 2026.
Six Mistakes That Can Ruin Any Model
| Error | Episode | Better |
|---|---|---|
| Select a Percentage by Competition | The program isn't profitable | Calculate based on your own cost price |
| Setting the bonus threshold too high | Many collect them, but hardly anyone redeems them | Make the first bonus achievable in just a few weeks |
| Offer Points and a Discount at the Same Time | Double the cost, half the effect | Choose a method and stick with it |
| Decay Without Memory | Loss of trust, negative reviews | Provide advance notice multiple times; specify the residual value |
| Stamp on a receipt with a large fluctuation in the amount | Small purchases are rewarded just as much as large ones | Switch to a points system or set a minimum receipt amount |
| No focus on the redemption rate | Costs and impact remain unclear | Track the monthly redemption rate |
FAQ: Frequently Asked Questions About Points, Stamps, and Cashback
What percentage of revenue can a loyalty program cost?
There’s no one-size-fits-all figure because it all depends on your gross margin. The most reliable approach is to work backward: Determine the cost of your bonus and divide it by the revenue you’ll need to generate to reach that amount. Then check whether this percentage fits within your margin—even in the worst-case scenario, where all claims are paid out. A program that works only because customers forget about their premiums isn’t based on sound calculations—it’s based on hope.
Isn't cashback just a discount?
From a business perspective, it’s very similar. The difference lies in the timing and the link to the account: The credit is added today and used on the next visit, which creates a small incentive to return. Nevertheless, cashback remains a pricing strategy. It doesn’t build up any visible progress that could be lost, and it draws attention to the price. If your goal is customer loyalty, points or stamps are more effective tools. If your goal is to attract new customers in a price-driven market, cashback may be the right choice.
How do I calculate how much a point should be worth?
Consider two factors. First, the perceived value: the retail price of the reward divided by the sales volume required to earn it. This value should be noticeable; in practice, it often ranges between three and five percent. Second, your costs: the cost of the promotional item divided by the same sales volume. This figure must fit within your margin. Based on the required sales volume and your average receipt amount, you can then determine how many purchases it will take to earn the promotional item. If this figure exceeds two months, lower the threshold.
How many stamps does it take to earn a reward?
As a general guideline, the first reward should be achievable within four to six weeks. If you participate daily, that’s about ten squares; if weekly, more like five to six. The starting point is key: Two free stamps on a 12-stamp card are more motivating than ten empty spaces, even though the actual effort required is the same. If you notice that many cards are left halfway through, the threshold is too high or the reward isn’t appealing enough.
Can I combine points and cashback?
This is only feasible if roles are clearly defined. A viable model: Points as the primary currency for everyone, with cashback as a benefit at a higher status level. What you should avoid is awarding both benefits simultaneously for the same purchase. Otherwise, you’ll be paying twice for the same purchase decision, and your customers won’t understand the program anymore. As a rule of thumb: the mechanism should be something that anyone on the team can explain in a single sentence.
How do I switch from a paper punch card to a digital version?
Implement the change gradually while still accepting the old cards. Set a conversion rate and calculate it in the customers’ favor. Announce the change at least four weeks in advance, specifying a clear date. Let both systems run in parallel for a transition period so that no one is left with a half-full card. Train your team, because questions will come at the counter, not via email. And use this as an opportunity to sign up customers: Anyone who has their old card transferred digitally is immediately registered in the program.
How can I tell if my model is actually generating additional revenue?
Don’t compare members with non-members, because members are the more loyal shoppers anyway. Two comparisons are meaningful: first, the same person before and after joining the program; second, a control group that is deliberately not offered any promotions. Pay attention to visit frequency, average receipt value, and repurchase rate. And be sure to factor in the program costs; otherwise, you’ll confuse the discounts you’ve given out with the revenue you’ve generated.
