Comparison Dashboard
New Zealand vs Australia: Landlord Tax Comparison
Residential landlords face different rules in New Zealand and Australia. This page compares the two systems row by row — interest deductibility, sale taxation, depreciation, loss offset, and GST treatment — with a direct link to the Inland Revenue or Australian Taxation Office source on every cell.
Last reviewed 15 April 2026. Tax rules move, so verify the primary source before relying on the detail. See our editorial standards for how we source and fact-check this content. This page is for information only, not tax or legal advice.
Biggest divergence
Loss rules
Ring-fencing in New Zealand versus negative gearing in Australia.
Exit difference
Sale gains
Bright-line treatment versus capital gains tax and discounts.
Modelling risk
Assumption drift
The same deal looks different once tax structure is attached correctly.
New Zealand and Australia treat residential landlords very differently. Australia allows negative gearing, taxes most investment-property sale gains under capital gains tax, and lets owners claim capital works deductions on eligible buildings. New Zealand ring-fences residential rental losses, applies the bright-line test instead of a general capital gains tax, and does not allow depreciation on residential buildings.
At A Glance
Where the systems diverge fastest
These are the points that most often distort an investor model when the wrong country's assumptions get imported into it.
Loss treatment
New Zealand
New Zealand ring-fences residential rental losses, so they stay inside the property bucket.
Australia
Australia allows negative gearing, so a rental loss can reduce other assessable income.
Exit tax treatment
New Zealand
No general capital gains tax, but the bright-line test can still tax gains on shorter holds.
Australia
Most investment property gains fall into capital gains tax, usually with a discount for eligible long holds.
Depreciation treatment
New Zealand
Residential buildings are not depreciable, though separate plant and equipment can still be.
Australia
Capital works and eligible plant can both affect annual deductions and later capital gains tax.
Holding-period deductions
New Zealand
Mortgage interest is back to full deductibility from 1 April 2025 where the general rules are met.
Australia
Interest is generally deductible when the property is genuinely producing or available to produce rental income.
Source Table
Side-by-side landlord tax reference
Every row below links directly to the primary authority that governs the point in question.
| Topic | New Zealand (IRD) | Australia (ATO) |
|---|---|---|
| Interest deductibility | Phased back in after the 2021–2024 restriction. 80% of interest on residential rental loans is deductible in the 2024–25 income year, rising to 100% from 1 April 2025. | Interest on a loan used to acquire or maintain a property that produces assessable rental income is deductible in the year incurred, provided the property is available for rent. |
| Taxation of sale gains | No general capital gains tax. The bright-line test taxes profit on a residential sale within the applicable holding period as income — 2 years for properties acquired on or after 1 July 2024 — with the main home generally excluded. | Capital gains tax applies to most investment property sales. Australian resident individuals and trusts that hold a CGT asset for at least 12 months receive a 50% discount on the assessable gain; companies do not, and complying super funds receive a one-third discount. |
| Depreciation of the building | Depreciation on residential rental buildings is not deductible. The structural cost is not recovered until the property is sold, and only through the bright-line test if the sale falls within the applicable period. | Capital works deductions under Division 43 are generally claimable at 2.5% per year over 40 years on the original construction cost of residential buildings built after 17 July 1985. Any capital works claimed reduce the cost base for CGT purposes. |
| Depreciation of plant and equipment | Plant and equipment in a residential rental (for example, a heat pump or oven) can still be depreciated using rates set by Inland Revenue, separately from the building itself. | Plant and equipment is depreciated under Division 40 over its effective life. Since 9 May 2017, residential rental owners can generally only claim Division 40 on items they purchased new, not on second-hand assets that came with the property. |
| Loss offset against other income | Residential rental losses are ring-fenced. They cannot be offset against salary, wages, or other income, and are carried forward to offset future rental profits or taxable land sale income in later years. | A negatively-geared property — where deductible expenses exceed rental income — produces a net loss that can be applied against the investor's other assessable income in the same year, reducing their overall tax liability. |
| GST / indirect tax on residential rent | Residential rent is an exempt supply for GST. Landlords do not charge GST on rent and cannot claim input tax credits on expenses relating to the residential rental. | Supplies of residential premises by way of rent are input-taxed. Landlords do not charge GST on rent and cannot claim GST credits on expenses relating to the residential rental. |
How To Use This
Apply the comparison before you trust the calculator output
When modelling New Zealand
Do not import Australian negative gearing or building depreciation into the assumptions. Cash flow can still improve over time, but the tax path is structurally different.
When modelling Australia
If you want an after-tax answer, add negative gearing, capital works, depreciation, and the capital gains tax discount on top of the base cash flow model.
When comparing both markets
A pre-tax yield or ROI percentage is not enough on its own. Use this page first so the assumptions feeding the calculator belong to the right tax system.
FAQ
Frequently asked questions
Can New Zealand landlords deduct mortgage interest against rental income in 2026?
Yes — the 2021–2024 phase-out has been reversed. 80% of interest on residential rental loans is deductible in the 2024–25 income year and 100% from 1 April 2025, per Inland Revenue guidance on interest deductions for residential property.
Do Australian landlords pay capital gains tax on investment property sales?
Yes. Australia has a general capital gains tax that applies to most investment property sales. Australian resident individuals and trusts that hold a CGT asset for at least 12 months receive a 50% discount on the assessable gain. Companies do not get the 50% discount, and complying super funds receive a one-third discount.
Does New Zealand have a capital gains tax on property?
No general capital gains tax. New Zealand applies the bright-line test instead, which taxes profit on the sale of residential property within the applicable holding period as income — currently 2 years for properties acquired on or after 1 July 2024. The main home is generally excluded.
Can New Zealand landlords claim building depreciation on a residential rental?
No. Depreciation on residential rental buildings is not deductible in New Zealand. Plant and equipment such as heat pumps and ovens can still be depreciated separately using Inland Revenue rates, but the building structure itself cannot.
What is the difference between New Zealand ring-fencing and Australian negative gearing?
Ring-fencing quarantines New Zealand residential rental losses — they cannot offset salary, wages, or other income, only future rental profits. Negative gearing in Australia works the opposite way: a net rental loss can be applied against the investor's other assessable income in the same year, reducing their overall tax liability.
Is residential rent subject to GST in New Zealand or Australia?
Residential rent is exempt from GST in New Zealand and input-taxed in Australia. Landlords in neither country charge GST on rent, and neither can claim GST input tax credits on expenses relating to the residential rental.
Related Reading
Keep the terminology aligned with the market
Next Step
Move from rules to numbers
Once the tax structure is clear, use the ROI or rental yield tools to model the cash flow with the right country-specific assumptions.