A payment gateway, the system that lets an online store securely accept payments, is one of the most consequential technical choices an e-commerce business makes, since it directly affects the moment a customer decides whether to complete a purchase or abandon it.
These are the factors that genuinely matter when choosing a payment gateway.
Genuine security and customer trust
A payment gateway needs to be genuinely secure and recognisable enough that customers trust entering their card details, since a checkout that feels untrustworthy directly costs sales regardless of how good the rest of the store is.
Displaying recognised security certifications and payment method logos at checkout is a small but genuinely effective way to build this trust.
Understand the genuine full cost
Transaction fees, monthly costs and any setup fees all contribute to the genuine cost of a payment gateway, and comparing this full picture matters more than comparing a single advertised rate in isolation.
A gateway that looks cheaper on transaction fees alone can cost more overall once monthly and setup fees are included.
Check genuine payment method coverage
Supporting the payment methods South African customers actually use, cards, and increasingly instant EFT and mobile payment options, reduces checkout friction and genuinely improves conversion.
A gateway supporting only card payments may lose customers who prefer other, increasingly common payment methods.
Consider genuine integration and support quality
A payment gateway that integrates smoothly with the specific e-commerce platform being used, and offers responsive support when a payment issue arises, matters considerably more in practice than it does when comparing options on paper.
Confirming a payment gateway operates within the South African Reserve Bank‘s regulatory framework is a genuine, basic check worth doing before committing.
Frequently asked questions
Why does a payment gateway’s security matter so much?
A checkout that feels untrustworthy directly costs sales, regardless of how good the rest of the store is.
What should be compared beyond a single advertised transaction rate?
The genuine full cost including monthly and setup fees, since a cheaper rate alone can still cost more overall.
Why does payment method coverage matter?
Supporting the payment methods South African customers actually use reduces checkout friction and improves conversion.
Does integration quality matter when choosing a gateway?
Yes, smooth integration with the specific e-commerce platform and responsive support matter more in practice than on paper.
What is a payment gateway’s genuine role?
Letting an online store securely accept payments at the exact moment a customer decides whether to complete a purchase.
Further reading
Originally published in 2024. Updated September 2026 into a clearer, principle-based guide to choosing a payment gateway, without endorsing specific unverified providers.