Negative Gearing Caps in the May 2026 Budget: What a Two-Property Limit Would Mean for Australian Investors

The May 2026 Federal Budget is shaping up to be one of the most consequential for Australian property investors in over a decade. Treasurer Jim Chalmers has confirmed that Treasury is actively modelling changes to both negative gearing rules and the capital gains tax (CGT) discount — two pillars of Australian property investment strategy since the 1990s.

If you own investment property, or you're planning to buy in 2026, understanding what's being proposed and how it could reshape your financial position is essential. Here's what we know so far, what the data tells us, and how to think through your options before Budget night on 13 May.

Key Takeaways

• Treasury is modelling a two-property cap on negative gearing and a reduction of the CGT discount from 50% to 33%
• Approximately 214,700 investors (9.5% of all property investors) own three or more properties and would be directly affected by the negative gearing cap
• Existing investment properties are highly likely to be grandfathered under any new rules
• The CGT discount reduction would affect every investor who sells, regardless of portfolio size
• New Zealand's 2021 removal of interest deductibility led to 7–12% rent increases within two years
• According to Picki data, investors who model after-tax cashflow across different tax scenarios can better stress-test their portfolio's resilience to policy changes

What's Actually Being Proposed

Two significant reforms are under active consideration ahead of the May 2026 budget. Neither has been legislated yet, but the Treasury modelling has been confirmed publicly by the Treasurer.

A Two-Property Cap on Negative Gearing

Under the proposed model, negative gearing deductions would be limited to a maximum of two investment properties per individual. If you own three or more investment properties, the rental losses on your additional properties would be "quarantined" — meaning they could only be offset against future rental income from those specific properties, not against your salary, wages, or other income.

This is a more targeted approach than the broad negative gearing reforms Labor took to the 2019 election, which proposed limiting negative gearing to new-build properties only. The two-property cap focuses specifically on portfolio investors rather than mum-and-dad investors with one or two rentals.

ATO data from the 2022–23 financial year shows there are 2.26 million individual property investors in Australia. Of those, approximately 214,700 own three or more properties — roughly 9.5% of all investors. Around 452,700 individual investment properties would be exposed under this model, representing the third, fourth, and subsequent holdings of multi-property investors.

A Reduced CGT Discount

The government is also modelling a cut to the capital gains tax discount from 50% to 33% (some reports suggest as low as 25%) for assets held longer than 12 months. Under current rules, if you sell an investment property after holding it for more than 12 months, you pay tax on only 50% of the capital gain. Under the proposed change, you'd pay tax on 67% of the gain.

To put this in real dollar terms: if you sell a property with a $200,000 capital gain and your marginal tax rate is 37%, the current system means you'd pay $37,000 in CGT. Under the proposed 33% discount, you'd pay $49,580 — an increase of $12,580. For investors banking on capital growth as their primary wealth-building strategy, this changes the after-tax mathematics significantly.

Who Would Be Affected — and Who Wouldn't

The negative gearing cap is more targeted than the headlines suggest. The vast majority of Australia's 2.26 million property investors own just one or two investment properties — they would see zero change to their tax position under the proposed cap.

The CGT discount change, however, would affect every investor who sells an asset, regardless of how many properties they own. This makes it the broader and arguably more impactful reform for the property market as a whole.

For investors who are modelling their after-tax cashflow, the distinction matters. A negatively geared property that currently costs you $8,000 per year after tax benefits might cost you $12,000 or more if the gearing deductions are quarantined. That's a holding cost increase of 50% — significant enough to force some investors to reconsider whether a third or fourth property makes financial sense.

The Grandfathering Question

Perhaps the most important detail for existing investors: it's highly likely that any changes would be grandfathered. This means the new rules would apply to future purchases only, not to properties you already own.

Treasurer Chalmers has dropped strong hints that existing landlords would be protected, likely through a phased introduction of new rules. This was the same approach Labor took to its 2019 election policies, and the current Treasury modelling operates on the same basis.

For investors who already hold three or more properties, grandfathering would mean your current deductions stay intact. The cap would only affect new acquisitions going forward. For investors planning to scale from two to three properties, the timing of your next purchase relative to any budget announcement becomes strategically significant.

What New Zealand's Experience Tells Us

New Zealand provides the closest real-world comparison. In March 2021, the New Zealand Labour government removed interest deductibility for residential property investors entirely, phased in over several years. The results offer instructive — if sobering — lessons for Australian policymakers.

Investor demand dropped significantly. Housing market activity slowed, and the proportion of buyers who were investors fell notably. However, rents increased by an estimated 7–12% over the following two years, as landlords passed on higher holding costs to tenants. The policy did little to improve housing affordability for first-home buyers, which was its stated objective.

Australia's proposed changes are substantially more modest than New Zealand's outright removal. A two-property cap preserves negative gearing for the vast majority of investors, and a CGT discount reduction from 50% to 33% still provides meaningful tax incentives for long-term holdings. But the New Zealand experience demonstrates that even well-intentioned reforms can produce unintended consequences in rental markets.

How This Affects Different Investment Strategies

Negative Gearing Strategies

Investors who rely heavily on negative gearing as a tax minimisation strategy — particularly those with multiple properties running at significant losses — face the most direct impact. If you're holding three or more negatively geared properties specifically for the tax offsets against your employment income, the quarantining of losses on your third-plus properties would reduce that benefit considerably.

However, it's worth noting that yield-focused investors who target positively geared properties would be largely unaffected by negative gearing caps, since they're not claiming losses in the first place. This could accelerate a trend Picki data already shows: growing investor interest in suburbs with strong rental yields and positive cashflow potential, particularly in regional centres like Mandurah and outer-metro growth corridors.

Capital Growth Strategies

The CGT discount reduction affects growth-focused investors more directly. If your strategy relies on buying in high-growth markets, holding for 10–15 years, and selling for a significant capital gain, the after-tax return on that gain drops meaningfully under a 33% discount compared to the current 50%.

For a property purchased at $600,000 that grows to $1,000,000 over 15 years, the CGT on a $400,000 gain at the 37% marginal rate would increase from $74,000 (current 50% discount) to $99,160 (proposed 33% discount) — an extra $25,160 in tax. That's still a strong return, but investors need to factor this into their forward projections.

Cashflow-Positive Strategies

Arguably, the proposed changes further strengthen the case for cashflow-focused investment strategies. If negative gearing benefits are reduced and capital gains are taxed more heavily, properties that generate positive cashflow from day one become relatively more attractive. The tax tail wags the dog less when the property pays for itself through rental income.

What the Data Suggests About Market Impact

Historical data from previous policy debates suggests that property markets tend to respond to negative gearing reform proposals in predictable ways:

Pre-announcement surge: In the lead-up to the 2019 election, investor lending increased as buyers tried to get in before potential changes. A similar dynamic may play out ahead of Budget night on 13 May 2026.

Post-announcement adjustment: If changes are announced with grandfathering, markets typically experience a brief pause as investors digest the new rules, followed by a return to fundamentals-driven activity.

Rental market tightening: Any policy that reduces investor activity tends to tighten rental supply. With vacancy rates already at historic lows across most Australian capitals, reduced investor participation could push rents higher — the opposite of what the government intends.

According to Picki's analysis, suburbs with strong fundamentals — low vacancy rates, population growth above the national average, and diversified employment bases — tend to be resilient to policy shifts because their underlying demand drivers remain intact regardless of tax settings. Investors who select suburbs based on data rather than tax incentives are typically better positioned to weather regulatory changes.

Practical Steps for Investors Before Budget Night

Whether changes are announced on 13 May or not, the uncertainty itself is a prompt for good financial hygiene. Here are practical steps to consider:

1. Stress-test your portfolio. Model your cashflow under different tax scenarios. What does your position look like if negative gearing deductions on your third property are quarantined? What if the CGT discount drops to 33%? Understanding your exposure before any announcement is far better than scrambling after.

2. Review your hold vs. sell decisions. If you've been considering selling a property, the current 50% CGT discount is guaranteed. A reduced discount post-budget would increase your tax on any future sale. This doesn't mean rushing to sell, but it does mean the timing calculation has changed.

3. Consider your next acquisition carefully. If you currently own two investment properties and are considering a third, the timing of that purchase relative to any budget announcement matters. If grandfathering applies, buying before the legislation takes effect could lock in current tax treatment.

4. Focus on fundamentals over tax benefits. The best defence against policy risk is owning properties in suburbs with strong underlying demand. Use data-driven tools to compare suburbs based on rental demand, population growth, and infrastructure investment rather than optimising purely for tax deductions.

5. Talk to your accountant. Individual circumstances vary enormously. A property investor on a $90,000 salary with one rental experiences these changes very differently from someone on $250,000 with four properties. Professional advice tailored to your specific situation is essential.

The Bigger Picture: Why Tax Settings Shouldn't Drive Strategy

Regardless of what happens on Budget night, the broader lesson is that building an investment strategy around tax incentives is inherently fragile. Tax rules change — sometimes slowly, sometimes overnight. What doesn't change is the fundamental economics of property: supply and demand, population growth, employment, infrastructure, and rental yields.

Investors who select properties based on depreciation benefits or negative gearing offsets alone are exposed to exactly this kind of policy risk. Those who select based on strong market fundamentals — and treat tax benefits as a bonus rather than the core thesis — tend to build more resilient portfolios.

Picki's suburb-level data helps investors assess these fundamentals independently of tax settings. Whether you're analysing high-demand metro suburbs like Blacktown or growth corridors like Point Cook, the data on vacancy rates, population trends, and yield dynamics tells a story that persists regardless of who's in government.

Explore Picki's suburb profiles to stress-test your next investment decision against fundamentals, not just tax benefits.

Frequently Asked Questions

When will the negative gearing changes take effect?

No changes have been legislated yet. The May 2026 Federal Budget (expected 13 May) is when the government is expected to announce its position. If changes are announced, they would still need to pass both houses of Parliament. Most analysts expect any changes would take effect from 1 July 2027 at the earliest, with existing investments grandfathered.

Will my existing investment properties be affected by the negative gearing cap?

Based on strong signals from Treasurer Chalmers and the precedent of Labor's 2019 policy platform, existing investments are highly likely to be grandfathered. This means if you already own three or more properties, your current negative gearing deductions would continue unchanged. The cap would apply only to future acquisitions.

How much more CGT would I pay under a 33% discount compared to the current 50%?

On a $300,000 capital gain at the 37% marginal tax rate, the current 50% discount means you'd pay $55,500 in CGT. Under a 33% discount, you'd pay $74,370 — an increase of $18,870. The exact impact depends on your marginal tax rate and the size of your capital gain.

Should I buy a third investment property before the budget?

This depends entirely on your financial situation, borrowing capacity, and the quality of the property. Rushing to buy purely to beat a potential policy change is risky. If the property makes sense on its fundamentals — strong rental demand, solid growth prospects, positive or neutral cashflow — then the timing of the budget may be a secondary consideration. If the property only works because of negative gearing tax benefits, that's a signal to reconsider regardless of what happens on Budget night.

Could these changes actually improve housing affordability?

The evidence is mixed. New Zealand's 2021 removal of interest deductibility reduced investor activity but increased rents by 7–12% and did not materially improve affordability for first-home buyers. Australia's proposed changes are less aggressive, so the market impact would likely be more muted. However, reducing investor participation without addressing housing supply constraints may simply shift costs from investors to renters.