A website is not an expense, it is an investment with a measurable payback period. The question is not how much it costs, but in how many months it pays for itself. Here are the calculations by scenario in 2026, with the formula to build your own.
The payback formula
Payback period (months) = Site cost / Net monthly gain generated by the site.
Net gain = (orders/month) x (average basket) x (margin %) minus recurring costs (hosting, maintenance, payment). As long as payback is under 12 months, the investment is healthy.
| Metric | Definition |
|---|---|
| Site cost | Design + development + launch |
| Net monthly gain | Margin generated minus recurring costs |
| Payback | Cost / net monthly gain |
| Healthy threshold | Payback < 12 months |
Payback scenarios
Three SME profiles, from a simple showcase site to scaling e-commerce. The dominant lever is always the average basket times volume.
| Scenario | Site cost | Orders/month | Basket | Margin | Net gain/month | Payback |
|---|---|---|---|---|---|---|
| Showcase + WhatsApp | 450,000 FCFA | 40 | 15,000 | 40% | 240,000 FCFA | ~2 months |
| Starter e-commerce | 1,200,000 FCFA | 120 | 18,000 | 38% | 820,000 FCFA | ~1.5 months |
| Established e-commerce | 2,500,000 FCFA | 400 | 22,000 | 35% | 3,080,000 FCFA | < 1 month |
| B2B catalog | 1,800,000 FCFA | 25 | 180,000 | 25% | 1,125,000 FCFA | ~1.6 months |
Reading the scenarios
Even a modest showcase site pays back fast once it captures WhatsApp orders that did not exist before. Payback shrinks most when the basket is high (B2B) or volume is large.
The recurring costs not to forget
Payback is computed on net gain, so after the costs that recur every month.
| Recurring item | Typical monthly cost |
|---|---|
| Hosting + domain name | 5,000 - 15,000 FCFA |
| Maintenance / updates | 25,000 - 75,000 FCFA |
| Payment fees (mobile money / card) | 1.5 to 3% of revenue |
| Content / catalog updates | 20,000 - 60,000 FCFA |
Full worked example
Decor shop, site at 1,500,000 FCFA.
- Traffic: 5,000 visitors/month, conversion 1.8% = 90 orders.
- Average basket: 35,000 FCFA, margin 35% = 12,250 FCFA/order.
- Gross monthly margin: 90 x 12,250 = 1,102,500 FCFA.
- Recurring costs: hosting 12,000 + maintenance 50,000 + payment 2% of 3,150,000 = 63,000, total 125,000 FCFA.
- Net monthly gain: 1,102,500 - 125,000 = 977,500 FCFA.
- Payback: 1,500,000 / 977,500 = 1.5 months.
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Over 12 months, the site generates 977,500 x 12 = 11,730,000 FCFA of net margin for 1,500,000 FCFA invested. Annual ROI ~682%.
Why an expensive site can be more profitable
| Approach | Cost | Conversion | Net gain/month | Payback |
|---|---|---|---|---|
| Bargain site | 400,000 FCFA | 0.8% | 196,000 FCFA | ~2 months |
| Optimized site | 1,500,000 FCFA | 1.8% | 977,500 FCFA | ~1.5 months |
The optimized site costs almost 4x more but pays back just as fast and then generates 5x more margin. Cheapest is not most profitable.
FAQ
How long does a website take to pay for itself?
For an active Senegalese SME, expect 1.5 to 8 months depending on traffic and basket. Below 12 months of payback, the investment is healthy.
How do I calculate my site's profitability?
Divide the site cost by the net monthly gain (orders x basket x margin minus recurring costs). The result is your payback period in months.
Is a cheaper site more profitable?
Not necessarily. An optimized site converting at 1.8% instead of 0.8% generates several times more margin, which more than offsets its higher cost.
What recurring costs should I budget?
Hosting and domain (5,000-15,000 FCFA), maintenance (25,000-75,000 FCFA), payment fees (1.5 to 3% of revenue) and catalog updates. Count them in the net gain.
Is a showcase site without online payment profitable?
Yes, if it turns visits into WhatsApp orders. A 450,000 FCFA showcase bringing 40 orders/month pays back in about two months.
Let's talk about your project. Give us your estimated traffic and basket, and we calculate your payback before writing a single line of code. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
