Tax deductions for NZ rental property owners: the complete guide

Getting your rental tax right

Rental income is taxable in New Zealand. But so are many of the expenses you incur in earning that income — and claiming them correctly can make a significant difference to your after-tax return.

The rules aren't always straightforward, especially with the interest deductibility changes that have been phased in since 2021. This guide covers what you can claim, what you can't, and where landlords commonly get it wrong.

Disclaimer: This article is general information only. Tax situations vary, and you should consult a qualified tax professional for advice specific to your circumstances.

The basics: how rental income is taxed

Rental income is added to your other income and taxed at your marginal tax rate. If you earn $80,000 from your job and $20,000 in net rental income, the rental income is taxed at the rate applicable to the $80,000–$100,000 income bracket.

You report rental income and expenses in your individual tax return (IR3) or, if you own properties through a company or trust, in the relevant entity's return.

Net rental income = gross rental income minus allowable deductions.

If your allowable deductions exceed your rental income, you have a rental loss. Whether you can offset that loss against your other income depends on the type of expense and the interest limitation rules.

Deductible expenses: what you can claim

Rates and levies

Local council rates — including general rates, targeted rates, and water rates — are fully deductible in the year they're charged. Regional council rates and any body corporate levies are also deductible.

Insurance premiums

The cost of insuring your rental property is deductible. This includes:

• Building insurance
• Landlord contents insurance
• Landlord protection insurance (covering loss of rent, tenant damage, etc.)
• Any excess paid on an insurance claim relating to the rental

Property management fees

If you use a property manager, their ongoing management fee (typically 7%–10% of gross rent plus GST) is fully deductible, as are letting fees for finding new tenants.

Repairs and maintenance

This is one of the most important — and most commonly misunderstood — areas of rental tax.

Repairs are deductible in full in the year the expense is incurred. A repair restores something to its previous condition without making it better than it was.

Examples of repairs:

• Replacing broken window glass with equivalent glass
• Fixing a leaking tap
• Patching and repainting a damaged wall
• Replacing a section of damaged carpet with equivalent carpet
• Repairing a fence blown down in a storm

Improvements (or capital expenditure) are not immediately deductible. Instead, they must be depreciated over their useful life. An improvement makes something better, bigger, or of a higher quality than it was before.

Examples of improvements:

• Replacing a single-glazed window with double glazing
• Adding a new deck
• Converting a garage into a bedroom
• Replacing a basic kitchen with a high-end one
• Installing a new heat pump where there wasn't one before

The grey area: What if you replace an entire roof that was failing? If the new roof is like-for-like (same materials, same standard), it's generally a repair. If you upgrade from a basic iron roof to a high-spec longrun with upgraded insulation, the upgrade portion is an improvement.

IRD's approach is to look at the nature and extent of the work. If in doubt, get professional advice — getting this wrong can trigger reassessments and penalties.

Accounting and legal fees

Fees paid to your accountant for preparing your rental tax return are deductible. Legal fees related to the rental activity — such as costs of a Tenancy Tribunal application, preparing tenancy agreements, or resolving disputes — are also generally deductible.

Legal fees for purchasing or selling the property are not deductible — they're capital costs.

Travel expenses

You can claim travel costs for trips to your rental property for legitimate property management purposes — inspections, maintenance oversight, tenant meetings, and picking up supplies.

Rules:

• If the trip is solely for property management purposes, the full cost is deductible
• If the trip has mixed purposes (e.g., you combine a property inspection with a holiday), you can only claim the portion directly attributable to the property
• You must keep a logbook or records of the travel

The IRD scrutinises travel claims carefully, particularly for properties in holiday destinations. Be meticulous with your records.

Advertising

The cost of advertising for tenants — Trade Me listings, signage, Facebook Marketplace promoted posts — is deductible.

Stationery, phone, and internet

If you use your personal phone or internet for managing the property, you can claim a reasonable proportion. You need to be able to justify the percentage you claim.

Body corporate fees

If the property is a unit title with a body corporate, the regular body corporate levies are deductible. However, special levies for capital improvements (e.g., a building remediation or new roof) are capital expenditure and must be depreciated.

Interest deductibility: the big change

The most significant tax change for landlords in recent years has been the phased restriction on interest deductibility, introduced in 2021.

The current rules (2025/26 tax year)

The rules depend on when you acquired the property:

• Properties acquired before 27 March 2021: Interest deductibility has been progressively reduced. For the 2025/26 income year, only 50% of interest is deductible against rental income (reduced from 75% in 2024/25). From 2027/28 onwards, no interest will be deductible for these properties.
• Properties acquired on or after 27 March 2021: Interest is generally not deductible unless the property is a new build (defined as receiving its Code Compliance Certificate within the 12 months preceding the acquisition, or the owner applied for the CCC).
• New builds: Full interest deductibility is available for 20 years from the date the CCC is issued.

Impact on rental losses

The interest limitation rules have a major impact on landlords who relied on negative gearing — claiming rental losses (driven by interest costs) against their other income. For most properties purchased before March 2021, this strategy is becoming increasingly unviable.

Important: The denied interest is not lost forever in all cases. Under the rules, denied interest can be carried forward and offset against future residential rental income — but not against other types of income. The rules here are detailed, and professional advice is strongly recommended.

Depreciation on chattels

While depreciation on residential buildings was removed in 2011, you can still depreciate chattels — the items inside and around the property.

Depreciable chattels include:

| Item | Estimated useful life | Depreciation rate (DV) | |------|----------------------|----------------------| | Carpet | 8 years | 24% | | Curtains and blinds | 8 years | 24% | | Stove/oven | 10 years | 18% | | Dishwasher | 8 years | 24% | | Heat pump | 10 years | 18% | | Fridge/freezer | 10 years | 18% | | Washing machine | 8 years | 24% |

These rates are approximations — check the IRD's depreciation rate finder for the current applicable rates.

Tip: Many landlords miss chattel depreciation entirely, especially those who self-manage their tax returns. If you haven't been claiming it, your accountant may be able to file an adjustment.

Commonly missed deductions

1. Pest control — the cost of professional pest treatment is deductible
2. Cleaning between tenancies — professional cleaning costs are deductible
3. Smoke alarm and security costs — replacing batteries, installing compliant alarms
4. Mileage to the property — IRD's kilometre rate can be used for vehicle expenses
5. Tenancy Tribunal filing fees — the $20.44 application fee (and any associated costs)
6. Subscriptions — Trade Me landlord subscriptions, tenancy management software
7. Healthy Homes compliance costs — assessments and reports

Records you need to keep

The IRD requires you to keep records for seven years. For rental properties, this includes:

• Rental income received (bank statements, receipts)
• All expense invoices and receipts
• Tenancy agreements
• Loan statements showing interest paid
• Depreciation schedules
• Travel logbooks
• Records of any capital expenditure

Good record-keeping isn't just about compliance — it's about making sure you claim everything you're entitled to. Tools like keel can help you organise income and expense records throughout the year, so tax time is less of an ordeal.

Key takeaways

• Claim every legitimate deduction — but make sure you can substantiate it
• Understand the difference between repairs (deductible) and improvements (depreciated)
• Stay across the interest deductibility rules as they continue to phase in
• Don't forget chattel depreciation
• Keep records for seven years
• Get professional tax advice — the fees are deductible, and the savings almost always outweigh the cost