The verdict in three sentences
An aggregator's headline rate (often "from 2.5%") hides three cost layers: collection, a sometimes-invisible conversion spread, and bank payout fees per batch. In Ghana (MTN MoMo, AirtelTigo, cards), the all-in effective rate climbs to 2.9–3.4% versus 1.7–2.0% for direct integration. The hidden margin is that half-to-full point you only see when you reconcile your statement against your sales.
Anatomy of the 2026 effective rate
Let's break down what separates the headline rate from the real cost the merchant bears.
| Component | Headline | Actual 2026 |
|---|---|---|
| Collection fee | 2.5% | 2.5% |
| Conversion spread | 0% | 0.3–0.6% |
| Payout fee / batch | "free" | GHS 2 × batches |
| Bank withdrawal fee | 0% | 0.2–0.4% |
| All-in effective rate | 2.5% | 2.9–3.4% |
The conversion spread and withdrawal fees are the most discreet lines. They never appear on the pricing page, only on the monthly statement.
Worked example on GHS 80,000/month
With GHS 80,000 volume and 4 weekly payout batches, here is the gap between headline and real.
| Line | Aggregator | Direct integration |
|---|---|---|
| Collection | GHS 2,000 (2.5%) | GHS 1,440 (1.8%) |
| Conversion spread (0.4%) | GHS 320 | GHS 0 |
| Payout (GHS 2 × 4) | GHS 8 | GHS 0 |
| Withdrawal (0.3%) | GHS 240 | GHS 80 |
| Monthly total | GHS 2,568 | GHS 1,520 |
| Settlement delay | T+2 to T+3 | T+1 |
Gap: GHS 1,048/month, about GHS 12,576/year. But the aggregator saves 15 to 25 dev-days — the trade-off depends on volume.
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Mini case study
Sandra, founder of an online store in Accra, runs GHS 80,000/month. Her aggregator quoted "2.5%". Reconciling statement against sales, she finds GHS 2,568 deducted, a real rate of 3.2%. By renegotiating the conversion spread (down to 0.2%) and batching payouts into 2 runs, she recovers ≈ GHS 400/month, about GHS 4,800/year, without changing provider.
FAQ
How do I compute my real effective rate? Divide total statement fees by your collected volume. If you show 2.5% but pay GHS 2,568 on GHS 80,000, your real rate is 3.2%.
Is the conversion spread legal? Yes, but it must be transparent. Demand the "FX fee" line on your statement; in 2026 it ranges 0.3 to 0.6% at cedi aggregators.
When does direct integration pay off? Usually above GHS 130,000/month, where the annual saving exceeds the cost of 15 to 25 dev-days.
Are per-batch payout fees negotiable? Often yes. Batching payouts (2 runs instead of 4) mechanically cuts those GHS 2 fees and the number of withdrawal charges.
What does a referral partner earn for recommending you? The Kolonell referral program pays 12% on an e-commerce project and 8% on an institutional one — enough to reward a simple introduction.
Let's talk about your project. We audit your real effective rate and integrate MTN and AirtelTigo directly to remove the hidden settlement margin. 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.