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NZ property sale tax calculator (bright-line)
New Zealand has no general capital gains tax. For residential property sold on or after 1 July 2024, the IRD bright-line test can still tax the profit if the binding sale agreement is within 2 years of the title registration date — unless an exclusion or rollover relief applies. This tool estimates whether bright-line applies and, if so, an indicative NZ income-tax amount on the gain. Rules checked against ird.govt.nz on 6 November 2026.
The short version
- Start date: usually when title is registered to you (settlement). For land outside NZ, when transfer is registered under foreign laws.
- End date: when you enter a binding sale and purchase agreement (even if still conditional, for example on finance).
- 2-year window: for sales from 1 July 2024, bright-line looks at whether the end date is within 2 years of the start date.
- Main home, business premises, farmland, inherited property / executors are generally excluded; other land rules can still tax a sale outside bright-line.
Who owns the property?
Standard purchase: date title is registered with LINZ (usually settlement). Off-the-plan and other acquisitions use different start dates — see IRD.
Buying costs can include legal fees, LIM, valuation and similar. Capital improvements are lasting improvements to the property (not ordinary repairs).
Standard sale: date of the binding agreement, even if still conditional. This is the bright-line end date.
For individuals, a taxable bright-line gain is added to other taxable income so extra tax uses the correct marginal brackets. Leave at 0 if you only want tax on the gain alone. Ordinary salary is not reduced by a bright-line loss.
If this sale is a loss, IR1229 lets you apply it against other taxable bright-line or land-sale profits in the same year; unused amounts carry forward. If this sale is a gain, brought-forward ring-fenced losses can reduce it. Neither offsets ordinary salary or wages.
No live FX feed (site security). Type a rate if you want an approximate Australian-dollar figure beside the NZ tax.
Both need to be true for the main-home exclusion. Business premises and farmland are also generally excluded; inherited property and executors are generally outside bright-line.
Result
Working
How the bright-line test works
- No broad CGT. NZ does not tax all capital gains. Bright-line is a specific income-tax rule for residential land sold inside a set period.
- Sales from 1 July 2024: compare the bright-line end date with the start date. If the end is within 2 years of the start, bright-line can apply.
- Taxable amount (indicative): sale price − selling costs − (purchase price + buying costs + capital improvements).
- Losses are ring-fenced (IR1229): a bright-line loss cannot offset salary, wages, rental or ordinary business income. It can offset other taxable bright-line or land-sale profits in the same year; unused loss is carried forward against future taxable land sales.
- Outside bright-line does not mean “never taxed”: intention to sell, a pattern of buying and selling, or an associated person in dealing / developing / building can still bring a sale into tax.
Tax rates used
| Taxpayer | Rate |
|---|---|
| Individual (from 1 April 2025) | $0–15,600 at 10.5%; $15,601–53,500 at 17.5%; $53,501–78,100 at 30%; $78,101–180,000 at 33%; $180,001+ at 39% |
| Company | 28% flat |
| Trust (default trustee rate) | 39% (some trusts pay 33% — not modelled) |
| ACC earner levy | Not included (income tax only) |
- IRD: The bright-line test
- IRD: Bright-line start and end dates
- IRD: Bright-line property tax – IR1229 (March 2026)
- IRD: Tax rates for individuals
- IRD: Tax rates for businesses
- IRD: Trustee income tax rates
Also applies to NZ tax residents selling overseas residential property. Residential land withholding tax (RLWT) for offshore persons is not modelled here.
Australian tax picture (repatriation / dual residents)
Many FinForce clients hold NZ property while living in Australia. A bright-line gain or loss is a New Zealand income-tax concept first. How it shows up in Australia depends on who owns the property (you personally, a company, or a trust), your residency, and whether Australia taxes the same amount with a foreign income-tax offset.
- A NZ property loss may have Australian implications (for example foreign-loss or trust-loss treatment). Ownership structure matters.
- This calculator does not invent an Australian-dollar tax offset from the NZ loss. The optional AUD figure is only a currency conversion of the NZ estimate at the rate you type.
- Ask your Australian adviser whether any AU loss can be used, and your NZ adviser to confirm the bright-line / ring-fence treatment before you lodge.
Estimates only — not NZ or AU tax advice.