The verdict in three sentences
In Kenya in 2026, M-Pesa's advertised rate hides withdrawal and settlement costs that eat the real margin. On paper it looks like ~1%, but adding transaction charges by tier and B2C withdrawal fees, the total cost on KES 500,000 of revenue climbs toward KES 17,500, an effective rate near 3.5%. In Nairobi as in Mombasa, you must model the full cost, not the shop-window rate.
Breaking down the real M-Pesa cost
M-Pesa remains unavoidable, but its cost reads in three layers: collection (Till or Paybill), withdrawal, and account fees. Here are 2026 orders of magnitude.
| Item | Rate / amount | On KES 500,000 |
|---|---|---|
| Till collection (Buy Goods) | ~0.55% | KES 2,750 |
| Paybill collection | tiered | KES 3,000 – 5,000 |
| B2C withdrawal to bank | tiered | KES 5,000 – 10,000 |
| Account / integration fee | monthly flat | ~KES 2,000 |
| Estimated total cost | ~3.5% effective | ~KES 17,500 |
The classic trap: a merchant compares "0.55% Till" to a card rate and picks Till, without seeing that B2C withdrawal doubles the real bill.
Till vs Paybill: the real match
On the Kenyan market, the Till vs Paybill choice matters. Compare full cost on the same volume.
| Criterion | M-Pesa Till | M-Pesa Paybill |
|---|---|---|
| Collection fee | ~0.55% | tiered, higher |
| Withdrawal fee | tiered | tiered |
| Daily merchant cap | high (verified) | high (verified) |
| Settlement | T+1 | T+1 |
| Effective estimated cost | ~3% | ~3.5% |
Paradoxically, Till often works out cheaper for simple retail, while Paybill suits reference-based billing despite higher tiers. The lesson: always compare the all-in effective cost.
Mini case study
Paul runs a deli in Nairobi, Kilimani. He collects KES 750,000/month via M-Pesa Paybill only, thinking he pays ~1%.
Real cost: collection ~KES 5,000; B2C withdrawal ~2% = KES 15,000; account fee KES 2,000. Total: KES 22,000/month, an effective rate of ~2.9%.
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
By switching simple sales to Till (cheaper Buy Goods) and optimizing withdrawals (fewer B2C, more scheduled bank settlement), he brings cost to about KES 16,000/month, saving KES 6,000 monthly, or KES 72,000 a year. Over 3 years that is over KES 216,000 — the price of a full e-commerce site.
FAQ
Is M-Pesa's headline rate the real cost?
No: Till Buy Goods at ~0.55% is only collection. Adding B2C withdrawal (tiered) and account fees, the effective cost often reaches 3.5% on real volume.
How much do withdrawals really cost?
B2C withdrawal to bank is charged by tiers, often 1 to 2%+ of the amount. It is the most underestimated line and sometimes doubles the collection cost.
What is the merchant cap in Kenya?
A verified merchant account supports high daily volume, well above starter tiers. To scale you need enhanced KYC (business registration, director ID).
Is Till cheaper than Paybill?
Often yes for simple retail: Till Buy Goods is cheaper, while Paybill suits reference billing despite higher tiers, landing around 3% vs 3.5% effective. Always compare all-in.
How do I cut these fees?
Favor scheduled bank settlement over cash withdrawal, split volume between Till and Airtel Money where relevant, and negotiate a merchant contract once you pass KES 1,500,000/month in revenue.
Let's talk about your project. We integrate M-Pesa Till, Paybill and Airtel Money in Kenya with the config that minimizes your effective cost. 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.