If you own rental property in New Zealand, you’ve probably heard about ring fencing legislation NZ — and if you haven’t, now’s the time to get familiar. Since 2019, these rules have changed how residential property investors can claim tax losses, and the impact on your cash flow could be bigger than you think.
In short, rental loss ring-fencing in NZ means you can no longer offset rental losses against your salary or other income. Instead, those losses are “ring-fenced” — locked to your property income and carried forward to future years. This has made a big difference for negative gearing strategies and has caught out investors who weren’t prepared.
In this article, we’ll walk you through how ring fencing rules work, who’s affected, what you can still claim, and what strategies still make sense. Whether you’re already investing or just getting started, understanding the ring fencing legislation NZ could save you from making costly tax mistakes.
What is ring fencing legislation in NZ?
Ring fencing legislation in NZ refers to rules that prevent residential property investors from offsetting rental losses against their other income (like salary or business profits). The law came into effect from the 2019–2020 tax year, and it significantly limits how rental property losses can be used to reduce overall tax.
Here’s what it was designed to do:
- Prevent investors from reducing taxable income using property losses.
- Make the tax system more neutral between homeowners and landlords.
- Discourage speculative property investment strategies like negative gearing.
Before this law, many investors used property losses to lower their overall income tax bill. That’s no longer allowed.
Who is affected by rental loss ring-fencing?
Not all taxpayers are impacted — this rule mainly targets residential property investors, not commercial landlords or developers.
Types of properties affected
The ring-fencing rules apply to:
- Residential rental properties (houses, apartments, Airbnb)
- Holiday homes rented out short-term
- Bare land bought for residential development
But the law does not apply to:
- Your main home
- Commercial properties
- New builds held by developers for resale
For context, check our guide on commercial rent and GST — commercial leases are not affected by this legislation.
Individuals vs companies and trusts
If you hold rental property in your personal name, the rules apply directly to your income tax return. For companies and trusts, the same rules apply unless you’re considered a property dealer or developer.
Important to know:
- Losses must be tracked separately for each entity.
- They can only be used to offset future rental income, not other forms of income.
- You must file detailed disclosure on your IR3 or IR4.
Related: See how this impacts your tax obligations when selling a rental property.
How ring fencing impacts your tax return
Now let’s look at how this rule plays out in practice. You buy a rental property. Rent doesn’t cover the mortgage, insurance, and rates. You make a loss — but you can’t deduct that loss against your salary anymore.
Can you still claim rental losses?
Yes — but they’re now ring-fenced. That means:
- You can’t reduce your tax bill for other income.
- You can carry forward the loss and use it against future rental profits.
So if you earn $50,000 salary and have a $10,000 rental loss, you still pay tax on $50,000 — not $40,000.
Want to see what you can still deduct? Check this: What can you claim on a rental property
How to carry losses forward
Losses must be carried forward within the same portfolio. You’ll need to:
- Record losses by property or property group
- Ensure your IRD filings match
- Reuse those losses only when the portfolio earns net income
Recent changes (since 2019):
- Ring-fencing applies on a portfolio basis, not property-by-property
- Applies to individuals, trusts, LTCs (unless excluded)
- You must disclose ring-fenced amounts in your return
Common mistakes and how to avoid them
Many investors still operate under the assumption they can use property losses like they used to. Here are the most frequent errors:
Frequent errors with ring-fencing:
- Deducting rental losses from salary or unrelated business income
- Forgetting to carry forward losses properly
- Not recording loss amounts separately in accounting software
- Not updating lease agreements and property structures post-2019
Avoid these, and you’ll stay off IRD’s radar.
Need help? Meet the team behind this article: About us
Strategies to manage ring-fenced losses
Even if you can’t offset losses now, you can plan for later — and some structures still offer flexibility.
Restructuring your ownership
Holding property in an LTC or trust might provide more control over how and when income and losses are applied.
- LTCs pass profits/losses to shareholders
- Trusts can offer flexibility with income distribution
- Companies keep losses locked inside the entity
Related: Learn how structure matters in selling a rental property
Planning for long-term deductibility
While you may not get immediate relief, long-term investors often use these strategies:
- Renovate to increase rental income
- Combine property cash flow to absorb old losses
- Time expenses (e.g., maintenance or interest) around income growth
Still unsure? Talk to our team for tailored advice.
Bonus for understanding ring fencing legislation NZ
Want a simple summary of what you can and can’t do? Download our free one-page checklist — or better yet, book a quick session with our team.
At BH Accounting, we help property investors:
- Navigate tax law changes
- Track and carry forward losses
- Restructure their investment portfolio
- Stay compliant while maximising returns
👉 Contact us — the first chat is free.
Conclusion
The introduction of ring fencing legislation in NZ has significantly reshaped how property investors manage their tax obligations. No longer can you use rental losses to reduce tax on your salary or other business income. Instead, those losses are locked within your property portfolio — and only usable when that portfolio turns a profit.
This doesn’t mean rental property is no longer a smart investment — it just means the tax strategy needs to change. The key is understanding how the rules apply to you, keeping accurate records, and planning for the long term.
If you’re not sure whether you’re applying the rules correctly — or you just want to make the most of your current portfolio — BH Accounting is here to help. We work with Kiwi investors every day to navigate tax law, restructure assets, and stay compliant.
FAQ about ring fencing legislation NZ
What is ring fencing in NZ property investment?
It’s a rule that prevents you from offsetting rental losses against other income like salary. Losses must be carried forward and used only against future property income.
Can I claim rental losses against my salary?
No. Since the 2019–2020 tax year, rental losses can only reduce income from the same residential property portfolio, not personal or unrelated income.
Does ring fencing apply to commercial property?
No. Commercial property is excluded from the ring-fencing legislation. Learn more in our guide on commercial rent and GST.
What happens to unused rental losses?
They are carried forward to future years and can only be applied to offset rental income from the same portfolio. They cannot be transferred or claimed outside the portfolio.
Are there exemptions from ring fencing rules?
Yes — some exclusions apply, such as land held for development, main homes, or commercial property investments. The rules don’t apply to income from renting out business premises.
Disclaimer
This article is for information only—not legal, financial, or tax advice. Every business is different, and rules change, so don’t make major decisions based on what you read here. If you’re unsure, talk to a professional—it’s cheaper than fixing a costly mistake later.