The official currency in New Zealand is the New Zealand dollar (NZD).
Euro, British Pounds, US Dollars and other major currencies can be exchanged locally or in advance of departure. While exchange facilities will be available at most airports they can incur substantial fees, therefore it is recommended to change money at a bureau de change or bank. Cash can also be withdrawn from ATMs and debit/credit cards are accepted at most establishments. It’s advisable to request bank notes in a mix of denominations, as it can sometimes be hard to get change from large notes and smaller notes are handy for smaller purchases and gratuities.