The Four People Taking a Cut of Your Card Payment And How QR Cuts That Chain
Most merchants think of card fees as a single cost when in fact they're not. A card transaction passes through four separate parties before the funds reach your account. Each one takes a cut. And the combined total is what you actually pay, a number most merchants have never calculated as an annual figure.
The Four-Party Chain
When a customer taps a card at your terminal, here's who gets paid:
The card network (Visa, Mastercard) charges an interchange fee for access to their rails.
The issuing bank (the customer's bank) takes a portion to cover the cost of issuing the card and providing the customer's credit or debit facility.
The acquiring bank (your bank) takes a fee for connecting your business to the payment system.
The payment processor charges for managing the technical transaction flow, terminal rental (often R300–R400/month), and system access.
By the time the funds reach you, somewhere between 1.5% and 3% of the original transaction has been distributed across this chain. None of it was negotiated with you. You accepted it when you signed the terminal contract.
The Annual Number Most Merchants Haven't Seen
This is a useful calculation: take your monthly card turnover and multiply it by 0.025. That's your approximate monthly processing cost.
At R100,000/month in card revenue, that's R2,500 a month in fees. Across a year, R30,000. Not to your suppliers. Not to your team. To a four-party processing chain for the privilege of accepting money.
For a large retail business, this is a known variable, managed by a finance function. For a small business owner running on tight margins, it comes out of what's left after everything else.
The trick of the fee structure is that it never arrives as one large number. It disappears transaction by transaction, month by month, small enough each time to not trigger an objection, large enough across a year to constitute a significant cost centre.
What QR Changes About the Chain
QR payments work differently at the infrastructure level.
When a customer pays through TappiPay, their funds are pushed directly to the merchant through PayShap, South Africa's real-time payment rail. The transaction doesn't route through card networks because there's no issuing bank interchange so the four-party chain doesn't apply.
TappiPay's total transaction fee is significantly lower than the standard card rate. It's not just slightly lower, but structurally lower because less of the payment chain needs feeding.
There's no POS terminal to rent, a minimum monthly swipe fee, nor a hardware cost. A merchant can be accepting QR payments within minutes of signing up without a delivery wait, an installation, or a contract that locks them into monthly equipment fees.
The Infrastructure Argument
The traditional defence for card fees is the cost of building and maintaining secure, reliable payment infrastructure. That argument made more sense when the infrastructure was genuinely expensive to run.
PayShap has processed over R403 billion in transactions across 461 million payments since launch. South Africa now has real-time payment rails that run at materially lower cost than legacy card infrastructure. The technology to move money more cheaply already exists and it's running here.
The question isn't whether the fee can come down. It's whether you're using payment infrastructure designed around that reality.
