Brightline Test Calculator
Check if the brightline test applies to your NZ property sale. See the brightline period, exemptions, estimated tax, and a timeline of key dates.
New builds had a shorter 5-year brightline period (Mar 2021 - Jun 2024).
Main home exemption requires living there for more than 50% of ownership.
Brightline Periods by Purchase Date
| Purchase Date | Standard | New Build |
|---|---|---|
| Before 29 March 2018 | 2 years | 2 years |
| 29 Mar 2018 – 26 Mar 2021 | 5 years | 5 years |
| 27 Mar 2021 – 30 Jun 2024 | 10 years | 5 years |
| From 1 July 2024 | 2 years | 2 years |
Frequently asked questions
What is the brightline test in New Zealand?
The brightline test is an NZ tax rule that makes profit from selling residential property taxable if you sell within the brightline period. The period depends on when you purchased the property — currently 2 years for properties bought from 1 July 2024.
What is the current brightline period?
For properties purchased from 1 July 2024 onwards, the brightline period is 2 years. Properties bought between 27 March 2021 and 30 June 2024 have a 10-year period (5 years for new builds). Properties bought between 29 March 2018 and 26 March 2021 have a 5-year period.
What exemptions exist for the brightline test?
The main exemptions are: the main home exemption (you lived there for more than 50% of ownership), inherited property, relationship property settlements, and transfers to or from a trust where you are a beneficiary.
How is brightline tax calculated?
If the brightline test applies, your gain (sale price minus purchase price minus eligible costs) is added to your taxable income and taxed at your marginal income tax rate. NZ income tax rates range from 10.5% to 39%.
Do new builds have a different brightline period?
Yes, for properties purchased between 27 March 2021 and 30 June 2024, new builds had a reduced brightline period of 5 years compared to 10 years for standard residential property. From 1 July 2024, both new builds and standard properties have a 2-year period.
Sources
Brightline rules sourced from Inland Revenue (IRD) — The Brightline Test. Tax rates correct for 2025-26 tax year (1 April – 31 March).
Related NZ tax tools
Last updated April 2026. Brightline rules sourced from IRD.