All rental income in New Zealand is taxable. But a well-structured rental property can generate significant deductible expenses that reduce your taxable income. Understanding exactly what you can and cannot claim — and the ring-fencing rules that limit those deductions — is essential for every NZ landlord.
All NZ rental income must be declared in your IR3 return. Deductible expenses include mortgage interest (fully deductible from 1 April 2025), rates, insurance, repairs, property management fees, and accountant fees. Rental losses are ring-fenced — they can only offset other rental income, not your wage or salary income. Keep receipts for 7 years.
All Rental Income Is Taxable
Whether you rent out a whole investment property, a room in your home, or a holiday rental — the income is taxable and must be declared in your IR3 individual income tax return.
Exceptions and thresholds:
- Boarder income: If you have a resident boarder in your home, IRD’s standard cost method allows you to receive approximately $230/week (threshold updated annually) per boarder without tax liability. Income above this threshold is taxable.
- Airbnb and short-term rental: Fully taxable. If the property is rented short-term for less than the full year, expenses are apportioned between rental and personal use.
If you have a rental property in a family trust or company structure, the income and expenses are declared in that entity’s tax return rather than your personal IR3.
Deductible Expenses: What You Can Claim
Mortgage interest From 1 April 2025, mortgage interest on residential rental properties is fully deductible — regardless of when the property was acquired. This restores the position that existed before the 2021–2025 phase-out period.
The interest must relate to funds used for the rental property. If you top up a mortgage secured against a rental property for personal purposes, only the portion used for the rental is deductible.
Council rates Fully deductible in the year paid.
Building insurance and landlord insurance Fully deductible. Contents insurance for the tenant’s belongings is not deductible — that’s the tenant’s responsibility.
Repairs and maintenance Deductible in the year incurred, provided the work is a repair (restoring to original condition) rather than an improvement (adding new value or capability).
| Deductible repair | Not deductible (capital improvement) |
|---|---|
| Repainting after weathering | Adding a new room |
| Replacing a broken hot water cylinder | Installing a heat pump where none existed |
| Fixing leaking pipes | Replacing weatherboard with brick veneer |
| Replacing like-for-like carpet | Installing hardwood floors to replace carpet |
If a repair has a capital component (e.g., replacing a 15-year-old roof with a new one that exceeds the original specification), IRD may require part to be capitalised. Get your accountant’s view on major works.
Property management fees Fully deductible — including letting fees, management fees (typically 8%–10% of rent), and any other fees charged by a property manager.
Accounting and tax fees The cost of preparing rental schedules and advice from your accountant is deductible.
Legal fees Legal fees for setting up a tenancy agreement or dealing with tenancy disputes are generally deductible. Legal fees relating to purchasing or selling the property (capital transactions) are not.
Depreciation on chattels Chattels (items not fixed to the building) can be depreciated. Examples include:
- Carpet and floor coverings
- Curtains and blinds
- Whiteware (fridge, dishwasher, washing machine)
- Heat pumps (the unit, not the installation of ducting in walls)
The building structure itself has been non-depreciable since the 2010–11 income year.
Travel costs Travel to inspect, manage, or maintain a rental property is deductible. If the property is in another city and you fly there for inspection, the return flight is deductible. Personal and rental travel combined on one trip must be apportioned.
Ring-Fencing of Residential Rental Losses
Since the 2019–20 income year, residential rental losses have been ring-fenced — meaning they can only offset other residential rental income, not general income like wages or business profits.
What this means in practice: If your rental property generates a $15,000 tax loss (expenses exceed income), that $15,000 loss:
- Can offset income from another residential rental property you own
- Cannot reduce your PAYE wage income for tax purposes
The ring-fenced loss is carried forward to future income years and can be offset against future rental income from that or other rental properties.
Properties exempt from ring-fencing:
- Mixed-use holiday homes (subject to different apportionment rules)
- Overseas rental properties (their own rules apply)
- Commercial properties
Provisional Tax for Rental Income
If your residual income tax (total tax minus PAYE and withholding taxes) exceeds $5,000 in a tax year, you become a provisional taxpayer. This means you pay tax on rental income in instalments during the year rather than in a lump sum after year-end.
Most landlords with one or two properties eventually become provisional taxpayers. Your accountant manages this — it’s not complex, just requires planning so you have funds available at provisional tax payment dates.
Brightline Tax and Rental Properties
If you sell a rental property within 2 years of purchase (from 1 July 2024 rules), the brightline tax may apply. See the brightline test guide for full details.
Record Keeping Requirements
IRD requires you to keep records supporting your income and deductions for 7 years. For a rental property, this means:
- All rent receipts or bank statements showing rental income
- All expense invoices and receipts (rates, insurance, repairs, management fees)
- Property management statements (annual summary)
- Mortgage statements showing interest charged
- Purchase and sale records, LIM reports, settlement statements
- Capital improvement records (relevant for depreciation and future deductions)
Digital records are acceptable — keep copies of all PDFs, scan paper receipts, and store them in a clearly organised folder for each property.
Frequently Asked Questions
Is rental income taxable in NZ?
Yes — all rental income must be declared and is taxed at your marginal income tax rate (up to 39% for income above $180,000). Deductible expenses reduce your net rental income and the tax you owe.
Is mortgage interest deductible on a NZ rental property in 2026?
Yes — from 1 April 2025, mortgage interest on residential rental properties is fully deductible for all properties, regardless of when they were acquired. This restored the pre-2021 position after the phase-out period ended.
What are the ring-fencing rules for rental losses in NZ?
Residential rental losses cannot offset wage income or other non-rental income. They can only offset other residential rental income. Excess losses are carried forward to future income years. Ring-fencing has applied since the 2019–20 tax year.
Can I claim depreciation on my NZ rental property?
You can depreciate chattels (carpet, curtains, whiteware, heat pump units) at IRD-set rates. The building structure itself is not depreciable. Your accountant prepares a depreciation schedule as part of the annual rental accounts.
How long do I need to keep rental property records in NZ?
Seven years from the end of the income year to which they relate. IRD can audit any income year within this window, so all rental income receipts, expense invoices, property management statements, and mortgage records should be retained.