The verdict in three sentences
The advertised rate is the tip of the iceberg: the real cost of taking payments online in Johannesburg adds the per-transaction fee (PayFast 2.9 % + R2, Yoco 2.6-2.95 %, Ozow EFT 1.5 %, Peach ~2.75 %), the chargeback fee (R150-R250) and FX/refund costs. At low volume the fixed per-transaction rand dominates; at high volume it is the percentage. The right call minimises total cost of ownership at your exact volume, not the lowest headline rate.
The full cost, item by item
A processor that is "free" to set up can cost more than a paid one if its per-transaction rate is higher. You must add everything. 2026 order of magnitude in South Africa.
| Item | 2026 range | Impact |
|---|---|---|
| Card rate (PayFast/Yoco/Peach) | 2.6 % – 2.95 % + R2 | Dominates at high volume |
| EFT rate (Ozow) | ~1.5 % | Cheapest rail domestically |
| Chargeback fee | R150 – R250 per case | Hurts high-dispute stores |
| Monthly fee | R0 – R199 | Dominates at low volume |
| Payout cycle | T+1 to T+2 | Cash-flow cost |
| Refund fee | R0 – R5 per refund | Provider-dependent |
| FX (international cards) | 1 % – 3 % | On cross-border sales |
Chargebacks and FX are the hidden costs: a store with a high dispute rate can lose far more to R200 chargeback fees than to its headline percentage.
Total monthly cost by volume
The ranking of providers changes with turnover. Here is the estimated total cost (per-transaction rate + fixed R2 + monthly fee) at three volumes, assuming 400 transactions, 2026 order of magnitude.
| Monthly volume | Card rate cost | Fixed (400 × R2) | Monthly fee | Total | Effective rate |
|---|---|---|---|---|---|
| R20,000 | R580 (2.9 %) | R800 | R99 | R1,479 | 7.4 % |
| R80,000 | R2,320 | R800 | R99 | R3,219 | 4.0 % |
| R200,000 | R5,800 | R800 | R99 | R6,699 | 3.3 % |
| R500,000 | R14,500 | R800 | R99 | R15,399 | 3.1 % |
At R20,000/month the effective rate jumps to 7.4 % because of the fixed R2 and monthly fee: below that, favour a no-monthly-fee provider. Routing eligible sales through Ozow EFT at 1.5 % instead of cards is the single biggest lever for domestic buyers.
Mini case study
Thabo launches an online accessories store in Johannesburg, expecting R80,000/month. PayFast at 2.9 % + R2 on ~200 transactions costs R2,320 + R400 = R2,720/month. Routing 40 % of that volume through Ozow EFT at 1.5 % saves on that share: R32,000 at 1.5 % = R480 versus R928 on cards, a R448/month cut, plus fewer chargebacks since EFT rarely disputes. Over a year that is roughly R5,376 saved before counting avoided R200 chargeback fees. The right mix depends on how many buyers accept EFT.
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FAQ
Why is my effective rate higher than the advertised percentage?
Because the rate only counts the commission. Add the fixed R2, monthly fee, chargebacks and FX and a 2.9 % processor can cost 7 %+ effectively at low volume. The effective rate falls as volume rises.
Is a no-monthly-fee processor always better?
Only at low volume. From about R80,000/month a processor with a monthly fee but lower rate can win. Calculate total cost rather than comparing headline percentages.
How much do chargebacks cost?
Typically R150-R250 per case, regardless of the disputed amount. A store with frequent disputes should prioritise EFT (Ozow), which rarely charges back, and tighten its fraud rules.
Does the payout cycle have a cost?
Yes, indirectly: a T+2 payout locks your cash for two days. For a store that restocks fast, a T+1 payout can justify a slightly higher rate.
How do I cut refund and FX costs?
Limit refunds with a clear returns policy and batch operations. For FX, always ask the applied exchange rate on international-card sales, not just the commission, since 1-3 % can hide there.
Let's talk about your project. We'll compute the total cost of your online acceptance and pick the cheapest processor at your volume. 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.
