Capital gains tax, commonly called CGT, is a tax charged on the profit someone makes when they sell an asset for more than they paid for it.
For example, if you bought an investment property for $700,000 and later sold it for $850,000, the capital gain would generally be $150,000 before costs. In a country with a capital gains tax, some or all of that gain may be taxable.
New Zealand does not currently have a broad or comprehensive capital gains tax covering every increase in the value of property, shares and other assets.
However, that does not mean every capital gain is tax-free.
Under New Zealand’s existing income tax rules, profits from selling property may be taxable in certain situations. This can include when:
The bright-line test is a New Zealand property tax rule that may require you to pay income tax on the profit from selling a residential property within a set period after buying it.
The current bright-line period is generally two years.
Some exclusions and rollover relief provisions may apply, including in certain situations involving a main home, inherited property, relationship property or changes in ownership.
Importantly, owning a property for longer than the bright-line period does not automatically make the profit tax-free. The intention rule and other land-sale rules may still apply.
The exact rules depend on how a government designs the tax, but a capital gains tax would usually be calculated using a formula such as:
Sale price minus purchase price and eligible costs equals the taxable capital gain.
Eligible costs could potentially include legal fees, real estate fees and certain capital improvements, depending on the rules.
Most capital gains tax systems apply when the gain is realised, meaning when the asset is sold, rather than taxing an increase in value while the owner still holds it.
This would depend entirely on the legislation.
Capital gains tax proposals often exclude a person’s primary home, but there is no universal rule. Any exemptions, tax rates and start dates would need to be confirmed if a new tax were introduced.
Depending on its design, a capital gains tax could apply to assets such as:
A capital gains tax could also include exemptions or different rules for certain types of assets.
A capital gains tax is generally a broad tax on profits made from selling assets.
The bright-line test is narrower. It applies specifically to certain residential property sales made within the relevant bright-line period.
While they are sometimes discussed as though they are the same thing, they are different tax concepts.
New Zealand does not currently have a comprehensive capital gains tax, but some profits from selling property are already taxable.
Whether you need to pay tax can depend on why you bought the property, how it was used, when it was sold and whether any exclusions apply.
Before buying or selling property, it is worth getting advice from a qualified accountant or tax adviser. Tax rules can be complex, and getting it wrong could leave you with an unexpected bill.
This article provides general information only and is not tax, financial or legal advice.
Capital gains tax is a tax on the profit made when an asset is sold for more than its original cost.
New Zealand does not have a broad capital gains tax, but profits from some property sales can be taxed under the bright-line test, intention rule and other land-sale rules.
As of June 2026, The bright-line period is generally two years for residential property sales.
A main-home exclusion may apply, but specific conditions must be met.
Possibly. Even when the bright-line test does not apply, other tax rules may still make the profit taxable.