Card Payments

Debit, Credit and Prepaid Cards: What Is the Difference?

Compare debit, credit and prepaid cards, how each is funded and authorised, and what the differences mean for merchants accepting card payments.

Debit, credit and prepaid cards all look similar, carry a Visa or Mastercard logo and work at the same terminals and online checkouts. The difference lies in where the money comes from: a debit card draws directly from a bank account, a credit card draws from a credit facility, and a prepaid card draws from a balance loaded onto the card in advance.

For a merchant the acceptance experience is largely the same, but the card type can affect authorisation behaviour, decline rates, recurring billing reliability and refunds. South African banks such as Absa, FNB, Nedbank, Standard Bank, Capitec, TymeBank and Discovery Bank issue all three types, with debit cards being by far the most widely held.

How Do the Three Card Types Compare?

Feature	Debit card	Credit card	Prepaid card
Source of funds	Cardholder's bank account	Credit facility from the issuer	Balance loaded onto the card
Approval check	Available account balance	Available credit limit	Available loaded balance
Linked to a bank account	Yes	Not directly	Usually not
Typical holder	Most banked South Africans	Customers who pass a credit assessment	Gift cards, youth cards, unbanked or budget users
Recurring payments	Supported, but fails if the account is empty	Generally most reliable	Often unreliable or blocked
Overspending possible	No, limited to balance	Yes, up to the credit limit	No, limited to loaded value

What Is a Debit Card?

A debit card is linked directly to a transactional bank account. When the cardholder pays, the issuer checks the available balance and reserves the amount immediately. If the balance is too low, the payment is declined with an insufficient funds response.

Modern South African debit cards are full scheme cards (Visa or Mastercard) with EMV chips and contactless capability, and most can be used online with 3D Secure. Older "electron" style cards that only worked at physical terminals have largely been phased out.

What Is a Credit Card?

A credit card draws on a revolving credit facility rather than a bank balance. The issuer checks the available credit limit at authorisation and the cardholder repays the issuer later.

For merchants, credit cards tend to be the most dependable option for recurring and card-on-file billing, because a temporary lack of cash in a bank account does not cause the payment to fail in the way it does with a debit card. Credit cards are also commonly used for pre-authorisation holds by hotels and car rental companies.

What Is a Prepaid Card?

A prepaid card carries a stored balance that is loaded before it can be spent. It is not linked to a bank account or credit facility, so spending is limited to the loaded value. Prepaid cards include gift cards, travel cards and budgeting cards, and they are often used by customers without a full bank account.

Points for merchants to note:

Prepaid cards frequently fail on recurring payments because the balance may be empty when the charge is attempted.
Some prepaid products are blocked for online, international or merchant-initiated transactions.
Refunds to a prepaid card go back onto the card balance, which can be a problem if the card has expired or been discarded.

Does the Card Type Matter for Merchants?

In most cases you accept all three types through the same terminal or checkout without doing anything different. The card type matters most when you:

Bill on a schedule – expect more retries and failures on debit and prepaid cards. See Recurring Card Payments: CIT and MIT and Dunning and Payment Recovery.
Place holds – pre-authorisations on debit cards lock up the customer's real cash, which can cause complaints. See Authorisation, Capture and Pre-Authorisation.
Process refunds – a refund always goes back to the original card, whatever the type. See Card Refunds, Reversals and Voids.

Refunds, Reversals and Voids

The difference between a refund, a reversal and a void on card payments, how long each takes to reflect, and what they cost the merchant.

Card-Present vs CNP