The verdict in three sentences
The merchant rate of Wave or Orange Money (about 1 %) is only a fraction of the true collection cost. Add bank withdrawal (0.5 to 1 %), the PSP subscription and integration development, and total cost of ownership often climbs to 2 to 2.5 % of volume. The break-even point for a dedicated PSP sits around 500,000 FCFA of monthly volume; below that, a simple payment link is enough.
Breaking down total cost of ownership
Mobile money collection stacks several fee layers that are forgotten at the moment of choice.
| Cost item | 2026 order of magnitude | Frequency |
|---|---|---|
| Merchant fee per transaction | 1.0-1.5 % | per sale |
| Mobile money withdrawal to bank | 0.5-1.0 % | per withdrawal |
| PSP / aggregator subscription | 0-25,000 FCFA/mo | monthly |
| Technical integration | 150,000-400,000 FCFA | one-time |
| Maintenance / webhooks | 25,000-50,000 FCFA/mo | monthly |
The classic trap: stacking merchant fee AND bank withdrawal fee, which nearly doubles your effective rate if you repatriate everything weekly.
Senegal vs Kenya: two models
Kenya with M-Pesa works in tiers (Till and Paybill), whereas Senegal stays on a more linear rate.
| Element | Senegal (Wave/OM) | Kenya (M-Pesa) |
|---|---|---|
| Merchant rate | ~1.0-1.5 % | 0-1.5 % by tier |
| Model | linear rate | Till/Paybill tiers |
| Withdrawal to bank | 0.5-1 % | fixed B2B fees |
| Settlement | T+1 | near real time |
| PSP break-even | ~500,000 FCFA/mo | equivalent volume |
The Kenyan Paybill model can be free on certain small tiers, which explains strong micro-merchant adoption; in Senegal, the near-constant rate simplifies forecasting.
Mini case study
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Ibrahim, a restaurant owner in Dakar, collects 900,000 FCFA a month via mobile money. Merchant fee at 1.2 %: 10,800 FCFA. He repatriates everything to his bank weekly, withdrawal at 0.7 %: 6,300 FCFA. Monthly total: 17,100 FCFA, an effective rate of 1.9 % rather than 1.2 %. By repatriating only 60 % and keeping the rest to pay suppliers in mobile money, he saves about 2,500 FCFA per month.
FAQ
At what volume does a PSP become worthwhile?
Around 500,000 FCFA of monthly volume, PSP features (reconciliation, webhooks, multi-operator) start to justify their cost. Below that, a simple Wave payment link is enough.
Can bank withdrawal be avoided?
Partly: pay your suppliers and salaries directly in mobile money to reduce repatriation. Each avoided withdrawal saves 0.5 to 1 % of the amount.
Is M-Pesa cheaper than Wave?
On small Paybill tiers, M-Pesa can be free for the merchant, but B2B and withdrawal fees add up. The effective rate often ends up close to Senegal's.
Is the integration cost one-time?
Technical integration is a one-off cost of 150,000 to 400,000 FCFA, but budget 25,000 to 50,000 FCFA per month for webhook maintenance and API updates.
Let's talk about your project. We quantify your total collection cost and integrate the right Wave/OM mix to reduce it. 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.
