Best Credit Cards in New Zealand: The Balance Split That Changes Everything

There are two types of credit card users in New Zealand. People who pay their balance in full every month. And people who do not. Every worthwhile credit card decision starts with knowing which category you are in.

If you carry a balance, the interest rate is the only number that matters. A rewards card at 22.95% on a NZ$3,000 balance costs about NZ$57 a month in interest. The NZ$3 in Airpoints you earned that month does not offset that. Find the lowest rate and focus on paying the balance down.

If you pay in full every month, the interest rate is irrelevant. Rewards, fees, and perks are the entire game.

For Balance Carriers: The Lowest Rates

If you regularly carry a balance from month to month, prioritise the lowest purchase rate and lowest annual fee. Balance transfer offers can help, but only if you can clear the debt within the promotional period.

CardInterest Rate (p.a.)Annual FeeForeign Transaction FeeKey Feature
TSB Low Rate Mastercard11.95%NZ$201.5%Lowest purchase rate in NZ
Kiwibank Zero Visa12.90%NZ$00%No fee, no FX fee
Westpac Fee Free Mastercard12.90%NZ$00%No fee, no FX fee
ASB Visa Light12.90%NZ$02.5%No fee, simple
BNZ Low Rate Mastercard12.90%NZ$0 (with selected BNZ account packs)1.5%Fee waived if you hold certain BNZ accounts
Heartland Choice Visa13.95%NZ$00%No fee, no FX fee, no rewards

Balance transfer tip: If you have high-interest debt on another card, consider ASB Visa Balance Transfer – 0% p.a. for six months on balance transfers (reverts to 12.90% after). No annual fee. This gives you six months to pay down the balance without interest accruing. Check current terms with ASB.

For Balance Payers: Rewards That Earn

If you always pay your statement in full by the due date, focus on rewards earn rates, annual fees, and perks. The interest rate is irrelevant because you never pay it.

Airpoints Cards

CardAnnual FeeEarn RateBonusKey Perks
American Express Airpoints CardNZ$01 Airpoint per NZ$100Occasional sign-up bonus (check with Amex)No fee, but not accepted everywhere
American Express Airpoints PlatinumNZ$1951 Airpoint per NZ$70400 Airpoints after spending NZ$1,500 in first 3 months (current offer)4 free lounge passes p.a., travel insurance, smartphone screen insurance up to NZ$500
ANZ Airpoints Visa PlatinumNZ$801 Airpoint per NZ$100 in NZ, 1 per NZ$150 overseasVariesWidely accepted, travel insurance included
Westpac Airpoints Mastercard (Platinum)NZ$801 Airpoint per NZ$100VariesTravel insurance, purchase protection

Important: American Express cards are not accepted at all New Zealand retailers. Most large chains (supermarkets, petrol stations, major retailers) accept Amex, but many smaller businesses, some restaurants, and some local shops do not. Have a backup Visa or Mastercard.

Cashback Cards

CardAnnual FeeCashback RateKey Feature
ANZ Cashback Visa PlatinumNZ$801% on eligible purchasesSimple, no points to manage. Spend NZ$10,000 → NZ$100 back
SBS Visa Credit CardNZ$0NZ$1 per NZ$150 spent (approx. 0.667%)No annual fee means every cent earned is net gain
BNZ Cashback VisaNZ$00.5% on eligible purchases (capped at NZ$500 per year)No fee, but lower rate

Points Cards

CardAnnual FeeEarn RateKey Feature
ANZ Rewards Visa PlatinumNZ$801 point per NZ$1 in NZ, 25% bonus points on utilitiesPoints can be redeemed for gift cards, merchandise, or travel
Westpac Hotpoints Mastercard (Platinum)NZ$801 Hotpoint per NZ$1, 1.5 pts on fuel/groceriesPoints redeemable at BP, The Warehouse, and other partners

For Overseas Travellers

Foreign transaction fees (FX fees) typically range from 1.5% to 2.5% on every overseas purchase. On a NZ$5,000 trip, that's NZ$75–$125 in unnecessary costs. The following cards charge 0% FX fees:

CardAnnual FeeInterest RateFX Fee
Kiwibank Zero VisaNZ$012.90%0%
Westpac Fee Free MastercardNZ$012.90%0%
ASB Visa FlexNZ$017.95%0%
Heartland Choice VisaNZ$013.95%0%

If you also want rewards while travelling, consider Amex Airpoints Platinum (1% FX fee, but lounge passes and insurance may offset the cost) – calculate whether the perks outweigh the FX fee.

The Rule That Overrides Everything

Miss a payment and penalty rates plus late fees wipe out months of rewards. Set up automatic full payment from your transaction account. The best credit card strategy is never paying interest. Every card above charges rates between 11.95% and 22.95%. None of the rewards matter if you carry a balance.

Frequently Asked Questions

What is the difference between a low-rate card and a balance transfer card?

A low-rate card (e.g., TSB Low Rate at 11.95%) charges that interest rate on all purchases and any carried balance. A balance transfer card (e.g., ASB Visa Balance Transfer) offers a promotional 0% interest on balances transferred from other cards, usually for 6–12 months, but then reverts to a standard rate. Use balance transfer cards to pay down debt faster – but make sure you clear the balance before the promo ends.

How can I avoid paying interest on a credit card?

Pay your statement balance in full by the due date every month. Most cards offer an interest-free period of up to 55 days on purchases if you pay the closing balance. Set up an automatic payment from your transaction account to ensure you never miss a payment. If you carry even a small balance, interest accrues on all purchases from the transaction date.

What are foreign transaction fees, and which cards avoid them?

Foreign transaction fees are a percentage charged on every purchase made in a foreign currency or with an overseas merchant. Most NZ cards charge 1.5% to 2.5%. Cards with 0% foreign transaction fees include Kiwibank Zero Visa, Westpac Fee Free Mastercard, ASB Visa Flex, and Heartland Choice Visa. These are ideal for overseas travel or regular online purchases from international retailers.