The verdict in three sentences
Cash on delivery (COD) is still the best first-order trigger in Johannesburg because it removes buyer distrust, but it erodes net margin by 6 points through door refusals and returns. Fully prepaid checkout via SnapScan, Ozow or card protects cash flow and eliminates returns, at the cost of much lower conversion from a buyer who does not know you yet. The 2026 winner is the partial 30 % deposit: it cuts the refusal rate by nearly three while keeping COD's reassuring effect.
The three models compared
Each model shifts risk between merchant and buyer. COD puts all the risk on the seller (logistics advanced, parcel prepared, possible return); prepaid puts the risk on the buyer (they pay before seeing); the deposit shares it. Here is the measured impact on an average basket of R500 in 2026 (order of magnitude).
| Criterion | Full COD | 30 % deposit | 100 % prepaid |
|---|---|---|---|
| Relative conversion rate | +40 % (top end) | +28 % | reference base |
| Parcel refusal rate | 22 % | 8 % | ~0 % |
| Time to collect cash | 5 to 9 days | 30 % instant, rest 5-9 d | Instant |
| Return cost per refused parcel | R50 | R50 | R0 |
| Cash-flow risk | High | Medium | Low |
| Net margin eroded | -6 points | -2 points | 0 points |
The hidden cash-flow effect
The COD trap is not only refusals: it is the collection lag. Between preparing the parcel, handing it to the courier and receiving the collected cash, 5 to 9 days pass during which you have already paid the supplier and the delivery. At steady volume this permanently ties up one to two weeks of revenue.
| Line item (100 orders/month, R500 basket) | Full COD | 30 % deposit |
|---|---|---|
| Gross revenue | R50 000 | R50 000 |
| Refused orders | 22 | 8 |
| Return cost | R1 100 | R400 |
| Revenue actually collected | R39 000 | R46 000 |
| Cash locked in transit (avg) | ~R10 000 | ~R4 000 |
| Mobile payment fees (1.5 %) | R0 (cash) | ~R225 on deposits |
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Mini case study
Nadia, who runs a cosmetics shop in Johannesburg, sells 100 orders a month at R500. On full COD she really collects R39 000 after R1 100 of returns (22 refused parcels x R50). Switching to a 30 % deposit drops her refusals to 8: she loses R400 in returns instead of R1 100, collects R46 000 and frees up R6 000 of cash. Even paying R225 in mobile payment fees on the deposits, she nets about R7 000 more per month and sleeps better.
FAQ
Does COD really scare away fewer customers? Yes, on a first order it converts around 40 % better than a prepaid checkout, because the buyer takes no financial risk until the product is in hand. The effect fades from the second order once trust is established.
How do you reduce the 22 % door refusals? A pre-delivery call the day before, a geolocated address and above all a 30 % deposit push refusals down to about 8 %. A customer who has already committed R150 on a R500 basket cancels far less often.
Is a partial deposit hard to collect? No: a SnapScan or Ozow payment link sent over WhatsApp collects the 30 % in under a minute, with the balance in cash on delivery. Mobile payment fees run around 1.5 %, a few rand on a R150 deposit.
When should you move to 100 % prepaid? As soon as a customer base returns regularly: for loyal buyers, prepaid fully removes returns and locked cash with no meaningful conversion loss. Keep COD or the deposit only for acquiring new customers.
Let's talk about your project. We will set up a hybrid COD + mobile-money deposit checkout that protects your margin from the very first sale. 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.
