KiwiSaver policies and the Green Party's tax announcements w/ tax policy expert Dr. Lisa Mariott: 29th June, 2026

New Zealand’s tax system is unique among developed countries; while we have comprehensive taxes on income and the consumption of goods and services, yet we lack a comprehensive capital gains tax, net wealth tax, or inheritance tax.

Ahead of the upcoming election, various parties are campaigning on making changes to the country’s tax system. Labour has proposed a relatively narrow capital gains tax, while the Greens have proposed a wealth tax of 2.5% per annum on the value of assets above 10 million dollars, among other new taxes.

To help make sense of these proposals, News Director Castor spoke to Dr. Lisa Marriott, an expert in taxation who teaches at Victoria University of Wellington.