NZ Bright-line Test Calculator
Check if your New Zealand property sale is caught by the bright-line test, estimate the tax in NZD at different marginal rates, and see how the 2-year rule for sales from 1 July 2024 replaced the older 5- and 10-year rules. Rules checked September 2026.
Bright-line Test Calculator
Check if your property sale is subject to New Zealand's bright-line test and estimate your tax liability. Sales on or after 1 July 2024 use the 2-year rule; earlier sales use the 5- or 10-year rules.
Date the title was transferred to you (generally settlement)
Date you enter a binding sale and purchase agreement
Price you paid for the property
Selling price or estimated market value
Sales from 1 July 2024: you must have lived there as your main home for more than 50% of the bright-line period, using more than 50% of the land
Only matters for sales before 1 July 2024 of property acquired from 27 March 2021 (5 vs 10 years)
Bright-line Period
Timeline
Subject to Bright-line Tax
This sale is within the 2-year bright-line period. Any gain will be taxed at your marginal income tax rate.
Estimated Tax on Gain
Gain: $100,000 ($850,000 - $750,000)
The net bright-line profit is added to your taxable income, so the tax depends on your total income for the year. This estimate uses sale price minus purchase price only; work out the actual net profit on IRD's IR833 form and check with IRD or a tax adviser which costs you can include.
History of Bright-line Changes
2-Year Rule Introduced
1 October 2015
The bright-line test was introduced for residential land acquired on or after this date. A sale within 2 years was taxed on the gain unless an exclusion applied.
Extended to 5 Years
29 March 2018
The bright-line period was extended from 2 to 5 years for properties acquired on or after this date.
Extended to 10 Years
27 March 2021
The bright-line period was extended to 10 years for existing properties. New builds retained a 5-year period to encourage new housing supply.
Restored to 2 Years
1 July 2024
For sales on or after this date, the bright-line period is 2 years for all residential property, whenever it was acquired, and the separate new-build rule no longer applies.
NZ Income Tax Brackets
Bright-line profit is taxed as income. Here are the NZ individual tax rates from 1 April 2025:
Bright-line profit is added to your other income for the year, so it may push you into a higher tax bracket. You report the net profit using IRD's IR833 form.
Frequently Asked Questions
Understanding the Bright-line Test in New Zealand
The bright-line test is the closest thing New Zealand has to a capital gains tax on property. Introduced for land acquired from 1 October 2015, it taxes the profit on residential property sold within a set period. The period has ranged from 2 to 10 years; for sales on or after 1 July 2024 it is 2 years.
How the Bright-line Test Works
When you sell a residential property within the bright-line period, the net profit (worked out on IRD's IR833 form) is added to your taxable income for the year. You pay tax at your marginal income tax rate, which in New Zealand ranges from 10.5% to 39%. This can result in a significant tax bill on large gains. For example, a $100,000 gain taxed at the 33% rate would result in $33,000 of tax.
The Main Home Exemption
The most important exclusion is for your main home. For sales on or after 1 July 2024, it applies if you lived in the property as your main home for more than 50% of the bright-line period and used more than 50% of its area as your main home. It is all or nothing: if either figure is 50% or less, the profit is taxable. Trusts can use it only in limited cases, and it is lost if you regularly buy and sell your main home.
Impact on Property Investment
The bright-line test has a significant impact on property investment strategy in New Zealand. Between March 2021 and June 2024 investors faced a 10-year bright-line period. For sales on or after 1 July 2024, the period is 2 years for all residential property, including property bought during the 10-year era, so holding for more than 2 years now takes a sale outside the test (other land-sale rules can still apply).
Working Out the Profit
If a sale is caught by the bright-line test, you complete an IR833 form and show the net profit in your income tax return. A bright-line loss is not included in the return; IRD asks you to keep your own record of it. Keep good records of your purchase, improvement and sale costs, and check with IRD or a tax adviser which costs you can include.
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Practice QuestionsUnderstanding the Bright-line Test in New Zealand
The bright-line test is New Zealand's main rule for taxing gains on residential property sales. Unlike a traditional capital gains tax, it only applies when a property is sold within a specific period after acquisition. If you sell after the bright-line period, the gain is not taxable under this rule (other land-sale rules can still apply).
The Changing Bright-line Periods
The bright-line period has changed several times since its introduction. Initially set at 2 years in 2015, it was extended to 5 years in 2018, then to 10 years in March 2021. For sales on or after 1 July 2024, it is 2 years for all residential property. What matters now is when you sell: a property bought during the 10-year era and sold after 1 July 2024 uses the 2-year period.
How Tax Is Calculated
If your property sale falls within the bright-line period, the net profit (worked out on IRD's IR833 form) is added to your taxable income for that year. It is taxed at your marginal income tax rate in NZD. New Zealand's rates range from 10.5% to 39% depending on your total income. This means higher earners pay significantly more tax on bright-line gains.
Main Home Exemption
The main home exclusion is the most commonly used exclusion from the bright-line test. For sales on or after 1 July 2024, you must have lived in the property as your main home for more than 50% of the bright-line period and used more than 50% of its area as your main home. There is no apportionment: if either test is failed, any profit on sale is taxable.
Frequently Asked Questions
What is the bright-line test?
What is the current bright-line period?
Does the main home exemption apply?
What are the tax rates?
Does the 10-year rule still apply?
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