How Transaction Fees Affect Your Margin
A transaction fee is deducted from what you actually receive, which reduces your effective margin on that sale — the same effect as a cost, just easy to overlook because it happens after the sale.
Direct answer
A transaction fee is deducted from what you actually receive, which means it reduces your effective margin on that sale — the same mechanical effect as a cost you paid for the item itself, just easy to overlook because it happens after the sale rather than before it.
The padlock again: cost ₵80, sold for ₵100, normally a 20% gross margin and ₵20 profit. This time it's paid for using a method with a hypothetical 2% transaction fee.
| Sale Price | ₵100 |
| Transaction Fee (2%, illustrative) | ₵2 |
| Amount Actually Received | ₵98 |
| Cost | ₵80 |
| Effective Profit | ₵18 |
| Effective Margin | 18% |
The recorded sale still shows ₵100 and a 20% margin. What actually lands in the business is ₵18 of profit, not ₵20 — a 2-point margin difference that a fee-blind view of the sale won't show.
Why this is easy to miss
A cost of goods sold is subtracted before you ever see the sale total. A transaction fee is subtracted after — it happens on the payment provider's side, not in the sale record itself, so it's genuinely easy for the recorded margin and the actual, cash-in-hand margin to quietly diverge without anyone noticing.
What this means in practice
On a high-margin item, a small transaction fee barely moves the needle. On a low-margin item, the same fee percentage can meaningfully change whether a sale was worth making at that price at all — worth factoring in specifically for your lower-margin products, not just your business overall.
Where this connects to a real decision
This is one half of deciding which payment methods to accept — a method with a higher fee isn't automatically wrong to offer, but its actual cost is worth knowing in real cedis, not just as an abstract percentage.