The verdict in three sentences
A QR code turns your counter into a payment terminal without renting a POS device or handling change. A static QR (posted once, the customer types the amount) costs roughly 0%, while a dynamic QR (generated per amount) runs around 0.5% but kills entry errors and smooths reconciliation. For Airtel Money and Orange Money in Gabon, and for Lipa Na M-Pesa in Tanzania, it is the fastest way to digitise an in-store sale.
Static QR, dynamic QR or cash: which to choose?
Cash is still king but it costs time, change errors and till risk. The QR changes the equation.
| Criterion | Cash | Static QR | Dynamic QR |
|---|---|---|---|
| Checkout time | ~45s | ~20s | ~12s |
| Fee | 0% (but till risk) | ~0% | ~0.5% |
| Amount error | frequent | possible (customer types) | none |
| Hardware cost | cash drawer | negligible print | cashier screen/app |
| Reconciliation | manual | by reference | automatic |
| Traceability | low | medium | high |
In urban areas like Dar es Salaam, the cashless share already exceeds 30% of proximity transactions: the QR is no longer a gadget, it is a customer expectation.
Till, paybill or link: how does it actually work?
On M-Pesa you distinguish the till number (merchant number, in-store buy goods) from the paybill (bills, services). The QR simply encapsulates that number and, when dynamic, the amount.
| Element | 2026 detail |
|---|---|
| Account type | Till (Lipa Na M-Pesa) for counter sales |
| Till settlement | T+0 to the merchant account |
| Static QR | 1 print, reusable, negligible cost |
| Dynamic QR | generated per amount, unique reference |
| Reconciliation | via transaction reference |
| Urban cashless share (Dar) | ~30% |
| Static / dynamic QR fee | ~0% / ~0.5% |
The dynamic QR with a unique reference per sale is what makes accounting possible: each collection ties to a specific receipt.
Mini case study
Fatou runs a bakery in Dar es Salaam with 120 sales a day at TZS 6,000 average basket. In cash each sale takes about 45s and produces 3-4 change errors a day. She installs a dynamic QR on a cashier tablet. Time drops to 12s — 66s saved per sale, about 2h12 a day across the counter. The 0.5% fee costs her roughly TZS 3,600 a day on TZS 720,000 of takings, easily offset by the end of change errors and a smoother peak-hour queue.
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FAQ
Static or dynamic QR for a small shop?
Static to start at no cost, dynamic as soon as volume rises. Dynamic removes entry errors and automates reconciliation, which quickly justifies the 0.5%.
Do I need special hardware for the QR?
No for static: one print is enough. For dynamic, a simple tablet or a cashier phone with the merchant app generates the code per amount.
How do I reconcile QR payments at day's end?
Each transaction carries a unique reference. In dynamic mode it ties automatically to the receipt; in static mode you match by amount and timestamp.
Can a customer without a smartphone still pay?
Yes, via USSD to your till number, without scanning. The QR is a shortcut, not a requirement; always keep a USSD and cash fallback.
Become a Kolonell referral partner. Know neighbourhood merchants ready to digitise their till? Refer them: the referral commission is 12% on e-commerce, 15% + 5% recurring on a showcase site, 10% on a marketplace and 8% on institutional work.
Let's talk about your project. We set you up with static and dynamic QR collection plus automatic reconciliation. 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.
