The Bright-Line Test Explained: What NZ Property Owners Need to Know in 2024

New Zealand does not have a general capital gains tax — but the bright-line test comes close for residential property. If you sell a property within a set period after buying it, any profit is taxable as income. And the rules changed significantly in 2024.

Here is a plain-English guide to where things stand now.

The bright-line test is a rule that taxes gains on residential property sales if the property is sold within a certain number of years of purchase. It was introduced in 2015 to target property speculation, and the time period has changed several times since.

The key point: it does not matter whether you intended to make a profit. If you sell within the bright-line period, the gain is taxable — full stop.

The National-led government reduced the bright-line period as part of its property policy changes. From 1 July 2024, the bright-line test applies to properties sold within 2 years of purchase.

This is a significant reduction from the previous rules:

Important: The period that applies is determined by when you purchased the property, not when you sell it. If you bought in 2022, the 10-year rule still applies to that property even though the law has since changed.

The clock starts on the date the property title is transferred to you (settlement date) and ends on the date you sign the sale and purchase agreement to sell.

So if you settled on a purchase on 15 August 2024 and signed an agreement to sell on 10 August 2026 — that is just under 2 years, and the bright-line test would not apply under the current rules.

The bright-line test applies to residential land in New Zealand. This includes:

• Houses and apartments
• Bare land that could be used for residential purposes
• Holiday homes
• Rental properties

It does not apply to:

• Commercial or industrial property
• Farmland (in most cases)
• Property used mainly for business purposes

Your main home — the property where you live most of the time — is generally exempt from the bright-line test. But the rules are specific:

• You must have used the property as your main home for most of the time you owned it
• If you rented it out for part of the period, only the portion of the gain relating to the time it was your main home is exempt
• You can only use the main home exemption twice in any two-year period — if you buy and sell frequently, IRD will scrutinise this

Property you inherit is generally exempt from the bright-line test.

Transfers of property under a relationship property agreement (e.g. as part of a separation) are generally exempt.

Under the previous rules, new builds had a shorter bright-line period (5 years vs 10 years). Under the current 2-year rule, there is no distinction — all residential property has the same 2-year period.

If the bright-line test applies, the profit (sale price minus cost base) is added to your income for that tax year and taxed at your marginal income tax rate — which could be up to 39%.

Your cost base includes:

• The purchase price
• Legal and conveyancing costs
• Real estate agent fees on purchase
• Capital improvements (not repairs or maintenance)

It does not include mortgage interest or rates — those are not deductible against bright-line income.

If you sell at a loss, that loss can only be offset against other bright-line income — not against your general income. So a bright-line loss does not reduce your tax bill unless you have other bright-line gains in the same year.

Yes. If the bright-line test applies to a sale, you must include the gain in your income tax return. Your lawyer or conveyancer is also required to collect information about the sale and report it to IRD — so IRD will know about the transaction.

If you are unsure whether the bright-line test applies to a sale you are planning, talk to an accountant before you sign the sale and purchase agreement. Once you have signed, your options are limited.

Example 1 — Exempt

Sarah buys a house in Christchurch in September 2024 and lives in it as her main home. She sells in March 2026 — 18 months later. The bright-line test applies (within 2 years), but the main home exemption covers the full gain because she lived there the entire time. No tax.

Example 2 — Taxable

James buys a rental property in October 2024 for $650,000. He sells it in July 2026 for $720,000 — a $70,000 gain. The sale is within 2 years of purchase. The $70,000 is added to James's income and taxed at his marginal rate. If he earns $100,000 from his job, the $70,000 is taxed at 33% — a tax bill of around $23,100.

Example 3 — Old rules still apply

Michelle bought an investment property in June 2022. Even though the bright-line period is now 2 years, she bought under the 10-year rules. She needs to hold the property until June 2032 to be outside the bright-line period.

If you are thinking about selling a property, the first question to ask is: when did I buy it, and what rules apply to that purchase?

For properties bought from 1 July 2024 onwards, the 2-year rule makes planning straightforward. For older properties, the rules are more complex and the stakes are higher — a 10-year bright-line period means many investment properties bought between 2021 and 2024 will remain taxable until the early 2030s.

If you are unsure where you stand, we can help you work through the numbers before you make any decisions.

The bright-line test catches people by surprise — especially those who did not think of themselves as property investors. If you are planning to sell a residential property, get advice first.

Contact Eastmure & Associates to talk through your situation. We work with property owners across Canterbury and can help you understand your tax position before you commit to a sale.