For thirty years, two tax rules quietly shaped how Australians build wealth through property: negative gearing and the capital gains tax discount. In the May 2026 Budget, the government rewrote both, and those changes are now law. It’s the most significant overhaul of property taxation in a generation, and it has investors, would-be investors and ordinary homeowners trying to work out one thing: does this affect me? This is the plain-language guide to what changed, who’s caught, who’s protected, and how to think about it.
First, What These Two Things Actually Are
Before the changes make sense, the basics. Negative gearing is what happens when an investment property costs more to own, through mortgage interest and expenses, than it earns in rent. Under the old rules, you could deduct that loss against your entire income, including your salary, reducing your overall tax bill. It’s why so many Australians bought loss-making rentals: the taxman helped carry the cost.
The capital gains tax discount is the other half. When you sold an investment property held longer than a year, you were taxed on only half the profit, the 50 per cent discount. Together, these two rules made established residential property an unusually tax-effective investment, and shaped the market for decades.
What Changed
Two reforms, both starting 1 July 2027.
First, negative gearing on established residential property is being abolished for new investors. From that date, losses on established rentals bought after budget night can no longer be offset against your salary, only against other residential rental income or future capital gains from property.
“Rental losses on existing residential investment properties will be ‘quarantined,'” as one tax analysis put it.
Second, the 50 per cent CGT discount is being replaced. In its place: cost base indexation (which adjusts your purchase price for inflation) plus a 30 per cent minimum tax rate on capital gains for assets held more than a year. This applies broadly across CGT assets held by individuals, trusts and partnerships, not just property.
The Dates That Decide Everything
Here’s the part that determines whether you’re affected, and it hinges on two specific moments.
The first is 7:30pm AEST on 12 May 2026, budget night. If you owned an established investment property at that moment, including one under contract awaiting settlement, you’re grandfathered: the old negative gearing rules continue for you until you sell. The change targets properties bought after that time.
The second is 1 July 2027. The CGT changes only apply to gains that accrue after this date, so gains you’ve already built up remain under the current discount. Nothing takes effect before then, there’s a runway.
Who’s Protected
The exemptions matter as much as the changes, and there are several.
Existing investors are grandfathered, as above. New builds are exempt entirely, negative gearing and the full 50 per cent CGT discount both remain available for eligible newly built dwellings, a deliberate carve-out to channel investment toward new housing supply rather than bidding up existing stock. Your family home is untouched: the main residence exemption is unchanged, so most homeowners are entirely unaffected. Superannuation funds keep their existing CGT treatment, and build-to-rent and government housing-program investments have targeted exemptions too.
How to Navigate This
For different people, the practical response differs. Here’s how to think about your situation.
If you own an established investment property now, your position is largely protected, you’re grandfathered on negative gearing until you sell. The main thing to understand is the new “lock-in” incentive: because selling means stepping out of grandfathered treatment, there’s a stronger reason to hold. Whether that suits you depends on your goals, and it’s worth modelling with an adviser rather than assuming.
If you’re thinking about buying an investment property, the calculation has genuinely changed, and the new-build exemption is now central. An established rental bought today loses negative gearing against your salary from mid-2027; an eligible new build keeps both tax benefits. That doesn’t automatically make new builds the better buy, they carry their own risks and price premiums, but it does mean the tax treatment now points in a clear direction the market will respond to.
If you’re an ordinary homeowner, breathe out, your home is not affected. The noise around this reform can make it feel like all property is being taxed differently; it isn’t. This is about investment property, and your main residence exemption stands.
Whoever you are, the one universal step is timing your decisions with the 1 July 2027 date in view and getting advice specific to your circumstances. Tax depreciation schedules and accurate CGT valuations actually become more important under the new system, not less. The authoritative detail is on the ATO’s tax reform page.
What It Means for the Market
Zoom out, and the intent is clear: dampen investor demand for existing homes, redirect it toward new supply, and raise revenue from an area that cost the budget more than $10 billion a year in forgone tax. The grandfathering reduces the risk of a wave of forced sales, but analysts note it also creates that lock-in effect, existing investors now have a reason to hold rather than sell, which could keep established stock off the market.
For a market already softening under high rates, it’s another variable in an uncertain time. It won’t be the dominant force on prices over the next year, rates and sentiment still lead, but over the longer term, steering investment toward new construction is exactly the structural nudge a supply-starved market has lacked.
The Bottom Line
This is a genuinely big change, but it’s not the emergency some headlines suggested. Existing investors are protected, homeowners are untouched, new builds are favoured, and nothing takes effect until mid-2027. The investors who navigate it best will be the ones who understand which side of those two dates they sit on, and who get advice matched to their actual position rather than reacting to the word “abolished.” This article is general information, not tax or financial advice, your circumstances are specific, and this is a change worth professional guidance.
Epik Wire covers property and housing in plain language for investors, buyers and owners. Subscribe to our newsletter to stay informed.
