How EFTPOS, Debit and Credit Cards Differ

🎮 How Each Card Moves Your Money

EFTPOS

An EFTPOS card is linked directly to your everyday account. When you pay, the money leaves your account almost straight away. Because it only spends what you have, you cannot go into debt with it, though some accounts allow an overdraft. Traditional EFTPOS works at New Zealand terminals but generally not online or overseas.

Debit Cards

A debit card is also tied to your own account, so you are still spending your own money. The difference is that it runs on an international card network, which means it works for online shopping, overseas purchases, and contactless payments. It looks and behaves like a credit card at the checkout, but there is no borrowing involved.

Credit Cards

A credit card is a short-term loan from the bank. You spend up to a set credit limit, and the bank bills you each month. If you pay the full balance by the due date, you usually pay no interest. If you only pay part of it, interest is charged on the rest, often at a high rate.

🔒 Fees, Contactless and Risk

Contactless Payments

Contactless, often called payWave or tap and go, lets you pay by holding the card near the terminal. It is fast and convenient, but research suggests tapping makes spending feel less real, so it can lead to spending more without noticing. Some merchants also add a surcharge for contactless or credit transactions to cover their costs.

Common Fees

Fraud and Protection

Cards on a network like Visa or Mastercard, both debit and credit, can often dispute a wrong or fraudulent charge through a chargeback. Credit cards in particular offer strong protection because the disputed money is the bank money, not yours, while it is sorted out. With a debit card the money has already left your account, so a dispute can take longer to refund.

💡 When to Use Which

For Everyday Spending

An EFTPOS or debit card is ideal for day-to-day spending because you can only spend what you have, which protects you from debt. If you want online and overseas use and contactless, a debit card gives you that without the borrowing risk of a credit card.

When a Credit Card Helps

A credit card can be useful for online purchases, travel, and the extra protection it offers, and some come with rewards. The catch is that it only stays cheap if you pay the full balance every month. Used that way, it is a convenient tool. Used as a way to spend money you do not have, it becomes expensive fast.

The Honest Test

If a credit card balance is creeping up and not being cleared each month, the rewards and convenience are almost never worth the interest. See our Credit Card Interest Calculator to see what carrying a balance really costs.

Final word: the card itself is just a tool. What matters is whether you are spending your own money or the bank money, and whether you can pay it back. This is general information, not personalised financial advice.