The rules around residential property investment in New Zealand have shifted a lot in recent years — and several recent changes have been favourable for investors. Here's a plain-English summary of where things stand in 2026.
Deposit and LVR requirements
Investors generally need a larger deposit than owner-occupiers — commonly around 30%–35% of the purchase price. Under the Reserve Bank's loan-to-value (LVR) rules, only a small share of bank lending can go to investors with less than a 30% deposit. From 1 December 2025 the Reserve Bank eased this slightly, allowing banks to write up to 10% of investor lending above 70% LVR (up from 5%). New-build properties are often treated more flexibly.
Debt-to-income (DTI) limits
DTI restrictions apply to investors too, with a higher threshold than owner-occupiers. Lending above seven times gross income is generally treated as high-DTI for investors (compared with six times for owner-occupiers), and banks can only do a limited share of lending above that level. Existing rental income is usually counted towards servicing, which helps — though banks often shade rent (count only a portion) to allow for costs and vacancies.
Interest deductibility is back to 100%
This is one of the most significant recent changes for investors. After being phased down in previous years, full interest deductibility on residential investment property was restored from 1 April 2025. That means investors can again deduct 100% of the interest on their rental loans against rental income, materially reducing holding costs compared with the previous rules.
The bright-line test is now two years
The bright-line test — which can tax the gain when you sell a residential property within a set period — was shortened to two years for properties sold on or after 1 July 2024 (down from five and ten years previously). In short, if you sell within two years of your bright-line start date, the gain may be taxable; sell after two years and the bright-line test generally won't apply. Some exclusions and specific rules apply, so always check your position with a tax professional.
Structuring your lending
How you structure investment lending — interest-only versus principal-and-interest, how you split fixed terms, and how you use equity in existing properties — can have a big impact on cash flow and flexibility. Many investors release equity from one property to fund the deposit on the next, within the LVR and DTI limits above.
Do your numbers carefully
Even with interest deductibility restored, investment returns depend on rent, interest rates, maintenance, rates, insurance and vacancy. With the OCR at 2.25% and fixed rates in the high-4% range as at mid-2026, it's worth stress-testing your cash flow against higher rates before you commit.
How Borro Finance can help
We help investors structure their lending across multiple lenders and properties, and work alongside your accountant and solicitor to keep everything aligned. If you're planning your next purchase, get in touch for a conversation about your options.
This article is general information only and is current as at June 2026. It is not personalised financial or tax advice and does not take your individual circumstances into account. Tax rules (including the bright-line test and interest deductibility), lending criteria and interest rates can change at any time. Please seek advice from a licensed financial adviser and a tax professional before making any decisions.