Tax on Rental Income

🧾 Expenses You Can Deduct

Common Allowable Expenses

You can generally deduct the costs of earning the rental income. The expense must relate to the rental, not to your private use.

Repairs vs Improvements

This trips many people up. Repairs that return something to its original condition are usually deductible now. Improvements that make the property better than before are capital and are not an immediate deduction; they may be depreciated where allowed.

Apportioning Mixed Costs

If a property is part private and part rental, such as a room rented out or a holiday home used personally, expenses must be apportioned so you only claim the rental share. There are specific rules for mixed-use holiday homes.

⚖️ Interest Rules and Ring-Fencing

Interest Deductibility Has Changed

Whether and how much interest on a loan for a residential rental can be deducted has shifted with policy changes in recent years. Because this is an area that has moved, do not rely on old advice. Check the current rules with Inland Revenue or your accountant before claiming interest.

Ring-Fencing of Rental Losses

If your rental makes a loss, that loss is generally ring-fenced. It cannot be used to reduce the tax on your salary or other income. Instead, it is carried forward and offset against future rental profits.

The Bright-Line Test on Sale

Tax on rental income is separate from tax on selling the property. The bright-line test can make a gain on sale taxable if you sell within a set period. See our Bright-Line Test guide and the NZ Property Tax Rules reference for current details.

💡 Records, Returns and Mistakes

Keep Good Records

Keep every invoice, the rent received, bank statements, and a clear split between repairs and improvements. Good records make your return accurate and protect you if Inland Revenue asks questions.

Filing and Provisional Tax

Rental profit goes in your income tax return. If the tax on your rental and other income is large enough, you may move into provisional tax, paying in instalments through the year. See our provisional tax material for how that works.

Common Mistakes

Mistake 1: Not Declaring the Rent

Rental income is taxable. Failing to declare it risks penalties and interest if found.

Mistake 2: Claiming Improvements as Repairs

Treating a capital improvement as an immediate repair deduction is a common error that can be reversed on review.

Mistake 3: Assuming Old Interest Rules Still Apply

The interest rules have changed; using last year's understanding can lead to an incorrect return.

Mistake 4: Expecting a Loss to Cut Your Salary Tax

Ring-fencing means a rental loss does not reduce tax on your wages; it carries forward instead.

A Simple Landlord Checklist

Our Rental Yield and Investment Calculator helps with the wider numbers on a rental. Final word: rental income is taxed on the profit after genuine expenses, with two NZ rules to watch, the changing interest rules and the ring-fencing of losses. Keep clean records, separate repairs from improvements, and confirm the current rules each year. This is general information, not tax advice; rental tax is detailed and many landlords use an accountant.