What Property Investors Need to Know
New Zealand’s residential property tax landscape continues to evolve, and has involved significant recent change for landlords. Interest deductibility on residential investment properties is now fully restored to 100%, reversing the phased‑out restrictions introduced under previous government.
This change sits alongside two other important rules that will remain in force:
- the two‑year bright‑line test, and
- the ring‑fencing of residential rental losses.
Together, these rules will shape the tax position of property investors over the coming years.
Interest Deductibility
80% of interest on loans used to acquire residential investment property from 1 April 2024 to 31 March 2025, was deductible.
From 1 April 2025 to 31 March 2026 (and onwards), 100% of interest will now be deductible.
Interest is often the largest expense for landlords. Under the previous rules, deductions were reduced to 0% for many properties, significantly increasing taxable income. Restoring deductibility reduces the effective tax cost of holding a rental property and improves cash flow for leveraged investors.
Brightline Period
As of 1 July 2024, the bright‑line period has been reduced to two years.
If a residential property is sold within two years of acquisition, any gain may be taxable unless an exemption applies (e.g., the main home exclusion). This shorter period is a return to the original bright‑line settings introduced in 2015.
Rental Loss Ring‑Fencing Still Applies
Despite the return of interest deductibility, residential rental losses remain ring‑fenced. This means:
- Losses from residential rentals cannot be offset against other income such as salary, business income, or investment income.
- Instead, losses are carried forward and can only be used to offset future residential rental income or taxable gains on residential property.
This rule continues to limit the ability of highly leveraged investors to use property losses to reduce their overall tax bill.
Practical Considerations Moving Forward
Property owners should consider:
- Loan structuring: Ensuring borrowings are correctly traced to deductible rental activity.
- Forecasting cash flow: Interest deductibility may improve net rental positions from 2026.
- Record‑keeping: Maintaining clear documentation for bright‑line dates and loan purposes.
- Tax planning: Understanding how ring‑fenced losses will accumulate and be used in future years.
Conclusion
The return to 100% interest deductibility is a good win for residential property investors, but it does not operate in isolation. The two‑year bright‑line test and loss ring‑fencing rules continue to shape the tax outcomes for landlords. Understanding how these rules interact will be essential for effective planning in the years ahead.
Professional advice is recommended, especially for investors with multiple properties, mixed‑use loans, or planned disposals. Feel free touch base with the team at MCI for advice and support if you already own, or are considering purchasing, a rental property.