The verdict in three sentences
B2B installment payment (30/60/90 days or 3-4 splits) raises average order value by 20-35% and turns hesitation into orders. Integration in Berlin costs between 10,000 and 30,000 EUR, with 1.5-3.5% fees per transaction taken by the financier, who often carries the default risk. Budget 4 to 8 weeks of delivery and 300-800 EUR/month maintenance for scoring, reminders and reconciliation.
Deferred payment models and their fees
Two logics coexist: B2B BNPL (a financier advances funds and takes the risk) and internal deferral (you carry the risk, cheaper but cash tied up).
| Model | 2026 fee (ballpark) | Who carries risk | Supplier payout |
|---|---|---|---|
| B2B BNPL with guarantee | 2.5-3.5% of amount | The financier | D+1 to D+3 |
| B2B BNPL no guarantee | 1.5-2.5% | You | At maturity |
| Internal deferral 30/60 d | Cash cost ~0.5-1% | You | At maturity |
| Card in 3-4 splits | 1.5-2.9% + fixed | Mixed | Spread |
| Classic factoring | 1-3% + commission | The factor | D+1 (85-90%) |
2026 estimate; rates vary with client-portfolio scoring and volumes.
Integration cost by scope
The budget depends on real-time scoring, number of schedules and billing wiring.
| Scope | 2026 cost (EUR) | Delay | Included |
|---|---|---|---|
| Simple 30/60 d deferral | 10,000-14,000 | 4 weeks | Schedule, reminders, tracking |
| Connected B2B BNPL | 15,000-22,000 | 5-6 weeks | Scoring, guarantee, webhook |
| + ERP reconciliation | 22,000-30,000 | 7-8 weeks | Matching, accounting, exports |
| Multi-currency / multi-country | 30,000-40,000 | 9-10 weeks | Local rules, EUR/USD |
Scoring and default-risk management
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Scoring blends legal data (trade registers, central-bank records), payment history and behavioural signals to accept or decline a deferral in seconds. A sound rule: cap outstanding exposure per client, require a guarantee above a threshold (e.g. 5,000 EUR) and automate D+3 / D+8 / D+15 reminders. A controlled default rate (<2%) keeps the model profitable even at 3% fees, because the basket uplift far exceeds the cost.
Mini case study
Thomas, head of an HVAC equipment wholesaler in Berlin, posts 4.8 M EUR revenue, average basket 1,900 EUR. He integrates B2B BNPL for 19,000 EUR, fees 3%, maintenance 550 EUR/month. Deferred payment lifts the basket to 2,470 EUR (+30%) and converts 12% more quotes. Over the year, additional revenue reaches ~640,000 EUR; matching BNPL fees cost ~19,200 EUR, defaults stay under 1.5%. Additional net margin after fees: around 90,000 EUR. The setup pays back by month 2.
FAQ
Does installment payment really lift the basket? Yes: in B2B, deferral removes the buyer's cash constraint and raises average order value by 20-35% by sector.
Who bears defaults? With a guaranteed B2B BNPL offer, the financier carries the risk for 2.5-3.5%. Without a guarantee or via internal deferral, you do, at lower cost.
What does integration cost? Between 10,000 and 30,000 EUR: simple deferral 10-14k, connected BNPL with ERP reconciliation up to 30k.
What is the rollout delay? From 4 to 8 weeks depending on scoring and ERP/accounting connections.
How to limit risk? Cap exposure per client, require a guarantee above a threshold and automate reminders: a default rate under 2% keeps the model profitable at 3% fees.
Let's scope your project. Share your average basket, volume and risk appetite: we'll price the BNPL integration, fees and maintenance. Detailed quote within 48 h. 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.
