Does New Zealand have a capital gains tax?

No, New Zealand has no broad or general capital gains tax. Most long-term investment gains, including on listed shares, are not taxed. Specific rules like the bright-line test can still tax some property and trading gains.

What is the bright-line test?

The bright-line test taxes the gain on residential property sold within a set period of buying it. For property bought on or after 1 July 2024 the period is two years; earlier purchases used a 10-year period (five years for new builds).

How is a bright-line gain taxed?

There is no special CGT rate. A taxable bright-line gain is added to your income and taxed at your marginal rate, which ranges from 10.5% to 39% depending on your total income.

Is my family home taxed?

Generally no. The main-home exemption usually removes the gain on your primary residence from the bright-line test, though there are limits if part of the home was rented or used mainly for business.

Does this tool save my numbers?

No. The calculation runs entirely in your browser. None of the prices or income figures you enter are uploaded or stored anywhere.

New Zealand Capital Gains Tax Calculator

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This New Zealand capital gains calculator answers the question most Kiwi investors ask: is my gain actually taxed? New Zealand has no general capital gains tax, so the tool focuses on the situations that are taxed — most importantly residential property caught by the bright-line test. Everything runs in your browser.

How it works

The logic follows New Zealand’s actual rules:

Listed shares. Gains for a normal long-term investor are not taxed. The tool reports the full gain as untaxed.
Residential property — main home. The main-home exemption usually removes the gain, so no tax applies.
Residential property — within the bright-line period. The gain is treated as ordinary income, not a separate capital gain. It is added on top of your other income and taxed across the marginal brackets 10.5%, 17.5%, 30%, 33%, and 39%.
Residential property — outside the bright-line period. Not taxed under the bright-line rule.

When property is caught, the tool stacks the gain on top of your existing income and applies each marginal band to the slice that falls inside it, giving an accurate marginal-rate result rather than a flat-rate estimate.

Example

Someone earning NZ$90,000 sells a rental within the bright-line period for a NZ$120,000 gain. That gain stacks above their salary, so most of it is taxed at 33% and the top slice at 39%, producing a far higher bill than a flat estimate would suggest.

Notes

This is an estimate. New Zealand’s land-sale rules are detailed — the new-build exemption, rollover relief, deductible holding costs, and the intention-to-resell rules can all change the answer. Always confirm with Inland Revenue (IRD) or a tax adviser before filing.