Help & Support


Merchant service fees

All credit card transactions, (including contactless and card not present e.g. online), pre-paid and international debit card transactions, incur a merchant service fee.

The merchant service fee is made up by the interchange fee set by the card schemes, and costs incurred by us to process the transactions. The rate we charge depends on several factors such as the type of business you have, your transaction volumes, and the mix of domestic and international card types you accept. Interchange rates vary based on the type of card your customer is using and the transaction method, e.g. card present or card not present.

BNZ merchant service fees are calculated monthly at the end of each calendar month, and are debited from your nominated account on the 15th of the subsequent calendar month. Should the 15th of the month fall on a day which is not a banking day, the fees will be payable on the next banking day.

Pricing options

We offer several pricing options depending on your requirements and preferences:

  • Blended (Fixed) - We charge you the same fixed rate for all Visa, Mastercard, and UnionPay international card transactions.
  • Unblended (Fixed) - We charge you separate fixed rates for Visa, Mastercard, and UnionPay international card transactions.
  • Interchange Plus - You’ll be charged the actual interchange costs applicable for each type of Visa and Mastercard transaction, plus a margin applied by us to process the transaction. With this option, you can see exactly what rates you are paying for each type of card accepted.

Note: Interchange Plus is not available for UnionPay International or American Express transactions.

Business banking rates and fees

Information on interest rates, fees, overdrafts, rewards and rebates on your business accounts and services.

See rates and fees

Contact us if you need help

Our Merchant help desk is open Monday - Friday, 8am - 5pm (closed on national public holidays).

Call us on 0800 737 774