The verdict in three sentences
BNPL (pay-in-3 / pay-later) lifts average order value by 20 to 35% and boosts conversion, but the merchant discount of 5 to 8% can wipe out a thin margin. The sweet spot sits on tickets of 50,000 to 500,000 FCFA (~75-750 EUR): below that, instalments add little; above it, default risk climbs. The real decision is a turnkey BNPL provider (Credlock/Carbon/Easybuy-style, which carries the risk and pays you upfront) versus in-house instalments on MoMo (you keep the margin but own the risk).
Merchant discount vs uplift: the margin math
BNPL only pays off when the basket and conversion lift exceed the merchant discount cost.
| Scenario (2026 order of magnitude) | Without BNPL | With BNPL |
|---|---|---|
| Average order value | 80,000 FCFA | 104,000 FCFA (+30%) |
| Conversion rate | 2.0% | 2.5% (+25%) |
| Merchant discount | 0% | 6% |
| Discount cost per sale | 0 FCFA | 6,240 FCFA |
| Gross margin (40%) | 32,000 FCFA | 41,600 FCFA |
| Net margin after BNPL | 32,000 FCFA | 35,360 FCFA |
Lesson: at 40% margin, a 30% basket uplift comfortably absorbs a 6% merchant discount. Beyond 30% uplift, BNPL becomes clearly profitable.
Eligibility, default and risk model
| Criterion (2026 estimate) | BNPL provider | In-house MoMo instalments |
|---|---|---|
| Approval rate | 40 - 60% | You decide |
| Who carries default risk | The provider | The merchant |
| Settlement to merchant | Upfront, immediate | Spread over instalments |
| Discount/cost | 5 - 8% | MoMo fees 1.5 - 3% |
| Typical default rate | Absorbed by provider | 5 - 12% on you |
| Ideal ticket | 50,000 - 500,000 FCFA | 30,000 - 200,000 FCFA |
The provider's strength: it pays you upfront and absorbs default. The in-house strength: you avoid the discount, but must manage arrears.
Net margin scenarios on 100 sales
| Model (100 sales at 104,000 FCFA) | Gross revenue | Cost/losses | Estimated net margin |
|---|---|---|---|
| BNPL provider 6% | 10,400,000 FCFA | 624,000 FCFA | Margin preserved, 0 arrears |
| In-house MoMo, 8% default | 10,400,000 FCFA | 832,000 FCFA (arrears) | Higher risk |
| In-house MoMo, 3% default | 10,400,000 FCFA | 312,000 FCFA (arrears) | Best if strong scoring |
Rule of thumb: if your in-house default exceeds 5%, a 6% BNPL provider becomes more attractive, because it turns a variable risk into a fixed cost.
Mini case study
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Chidi sells furniture online in Lagos, average ticket 120,000 FCFA (~180 EUR), 150 sales/month. By adding pay-in-3 via a BNPL provider at 6%, his average order value rises to 156,000 FCFA and conversion gains 25%, lifting sales to 188/month. Revenue: from 18,000,000 to 29,328,000 FCFA/month. The BNPL discount costs 1,759,680 FCFA, but settlement is immediate with zero arrears. At 40% margin, his net monthly gain lands near +2,600,000 FCFA despite the discount. BNPL more than paid for itself.
FAQ
At what basket size does BNPL make sense in Lagos?
The sweet spot is 50,000 to 500,000 FCFA. Below 50,000 FCFA instalments add too little value and the discount eats too much margin; above 500,000 FCFA default risk climbs sharply.
BNPL provider or in-house MoMo instalments: which to choose?
For zero risk and immediate settlement, a provider (5-8% discount) is ideal. If you know your customers and can score them, in-house on MoMo avoids the discount but exposes you to 5-12% default.
How much does BNPL really lift average order value?
2026 estimates put the uplift at 20 to 35% on AOV, plus 20 to 30% additional conversion. The effect is stronger on durables (furniture, electronics) than on consumables.
What default rate should you expect on in-house instalments?
Without scoring, expect 8 to 12% default; with verification (customer history, upfront deposit, cap), you can reach 3 to 5%. A 30% deposit at order sharply reduces risk.
Does BNPL hurt my margin?
A 6% discount is offset as soon as basket uplift exceeds 30% at a 40% margin. Below that, watch closely: BNPL can turn neutral or slightly negative on net margin.
Let's talk about your project. We integrate pay-later tuned to your margin and risk. 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.
