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    Australia's Property Market Was Never About Wealth. It Was About Endurance.

    Mark Kilroy
    Chartered Quantity Surveyor (MRICS) · Registered Tax Agent · Founder, Koste
    Published
    A couple stands beside a 'For Lease — Leased' sign overlooking the Sydney skyline at sunset, illustrating the lived reality of Australia's residential property market.
    Sydney at dusk: a market built less on wealth creation than on the willingness to hold.

    Australia spent thirty years pretending property investment was about wealth creation. It wasn't. It was about survival.

    Beneath the affordability debate, beneath the politics, beneath the endless arguments about negative gearing, Australia built a housing market dependent on a single assumption.

    That investors could survive weak cash flow long enough to harvest long-term capital growth.

    That was the entire model.

    And the model is now breaking.

    The Fairness Debate Is Missing the Structural Shift

    The proposed reforms to negative gearing and capital gains tax are being framed as a fairness debate. Politicians argue they will improve affordability. Critics argue they will collapse rental supply. Economists argue about prices.

    Almost none of them are discussing the actual structural shift.

    Australia is changing the economics of holding property. And that matters far more than the political theatre suggests.

    Because Australian residential property was never a high-income investment. For decades, investors accepted low yields, weak cash flow, high leverage, rising holding costs and long periods of negative carry. They accepted all of it because the system compensated them elsewhere.

    If they could survive the hold, the system rewarded them. Inflation eroded their debt. Migration supported demand. Constrained supply protected prices. Monetary expansion inflated asset values. Tax settings softened the pressure. Concessional CGT treatment rewarded patience.

    Every component reinforced the next.

    The Bridge Being Dismantled From Both Ends

    Negative gearing was never simply a tax deduction. It was a holding stabiliser. It softened the financial pressure of carrying an asset that frequently could not support itself, particularly when interest rates rose.

    The capital gains tax discount then rewarded investors for accepting the duration risk of holding that asset for years, sometimes decades.

    Together, these two settings formed the bridge between weak rental income and long-term wealth accumulation.

    That bridge is now being dismantled from both ends.

    Most commentary stops at the headline. Existing investors will likely be grandfathered. Future investors buying established property will lose access to the concessions. CGT treatment becomes materially less attractive. End of analysis.

    But that misses the actual issue.

    Markets Are Set at the Margin

    Long-term investors who bought a decade or more ago purchased under a completely different economic regime. They have already benefited from substantial capital growth, debt erosion through inflation, lower leverage and stronger rental income. Many of them are now positively geared despite entering the market with weak cash flow. Whatever happens next, they will be fine.

    The real issue sits with the marginal future investor.

    The investor buying at today's valuations, with compressed yields, larger debt loads, elevated holding costs and weaker tax treatment, faces a fundamentally different equation to every previous generation of Australian property buyer.

    That distinction matters because markets are set at the margin.

    Future investor participation determines liquidity, pricing, project feasibility, housing supply and construction funding. Not investors who bought in 2012 under conditions that no longer exist.

    And markets price future incentives immediately.

    Capital Doesn't Move Where Governments Want It To

    The assumption in policy circles is straightforward. Reduce tax incentives for established property and investor capital will shift neatly into new construction.

    In theory, that sounds logical.

    In reality, capital rarely moves where governments want it to move.

    Capital moves where the risk-adjusted return justifies the hold.

    And Australia is attempting to redirect investment into new housing at the exact moment the construction sector is buckling. Costs remain elevated. Builder insolvencies remain historically high. Labour shortages persist across every key trade. Apartment feasibility is fragile. Financing conditions are tighter than previous cycles. Presale requirements are constraining development pipelines before they even start.

    This is the nuance missing from public debate.

    Investor Capital Underwrites Housing Supply

    Investor demand does not simply inflate prices. In many cases, investor capital underwrites housing supply itself. Apartment projects across the country rely on investor presales to secure construction finance and proceed to build. Without that capital, projects stall. Without projects, supply slows. Without supply, affordability deteriorates further.

    This is not a defence of the current system. The current system has plenty of problems. But housing markets operate as interconnected systems, not political slogans.

    Once the economics of holding property changes, investor behaviour changes with it. And once investor behaviour changes, the consequences move through lending markets, construction pipelines, rental supply, project feasibility, housing turnover, liquidity and valuation expectations all at once.

    That is the story unfolding beneath the political debate.

    Duration Is the Whole Game

    Australian housing has always been duration-dependent. Most metropolitan investment properties purchased in recent years do not generate enough income to justify their valuations on cash flow alone. The model relied on investors believing that surviving the hold would eventually compensate them.

    Once holding costs rise and exit rewards weaken, that belief collapses.

    This is why the negative gearing and CGT debate cannot be reduced to whether investors deserve a tax concession. That framing misses the structural question entirely.

    The real question is whether Australia can maintain stable long-term housing supply once the economics of holding residential property fundamentally change for the next generation of investors.

    The reforms do not simply alter taxation. They alter the willingness to hold. And a market built on long-duration confidence does not reprice that confidence quietly.

    That is the conversation Australia should be having.

    — Mark

    Sources

    Frequently Asked Questions

    Why is Australian residential property described as duration-dependent?

    Most metropolitan investment properties purchased in recent years do not generate enough rental income to justify their valuations on cash flow alone. The investment case relied on investors holding through years of negative carry while inflation eroded their debt, migration supported demand, and constrained supply protected prices. Returns were earned by surviving the hold long enough for the system to compensate them at the other end.

    What role did negative gearing and the CGT discount actually play?

    Negative gearing was never just a tax deduction — it was a holding stabiliser that softened the cash-flow pressure of carrying an asset that frequently could not support itself. The CGT discount rewarded investors for accepting the duration risk of holding that asset for years or decades. Together they were the bridge between weak rental income and long-term wealth accumulation. Removing either one alters the entire economics of holding residential property.

    Will the proposed reforms shift capital into new construction as policy intends?

    In theory, reducing tax incentives for established property should redirect investor capital into new builds. In practice, capital moves where the risk-adjusted return justifies the hold. The reforms arrive at the exact moment construction costs are elevated, builder insolvencies remain historically high, labour shortages persist across every trade and apartment feasibility is fragile. Redirecting capital into a sector that is itself buckling is not a smooth transition.

    Who is the 'marginal investor' and why does it matter so much?

    The marginal investor is the next person deciding whether to buy at today's valuations with compressed yields, larger debt loads, elevated holding costs and weaker tax treatment. They are not the long-term investor who bought in 2012 under conditions that no longer exist. Markets are priced at the margin, not at the average — future investor participation determines liquidity, pricing, project feasibility, housing supply and construction funding. If the marginal investor walks away, the whole system reprices.

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    Mark Kilroy is a Chartered Quantity Surveyor (MRICS) and Registered Tax Agent with more than 25 years of experience in construction cost analysis and tax depreciation across Australia, the UK and the US. He is the founder of Koste Chartered Quantity Surveyors and a Queensland Committee Member of the Australian Institute of Quantity Surveyors.

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