What the Budget’s property tax changes mean for passive house investors
The federal government’s 2026-27 budget made a significant change to how property investment is taxed in Australia. From 1 July 2027, negative gearing on residential properties will be limited to new builds only. From now on, investors who purchase existing properties will no longer be able to offset rental losses against their other income.
For anyone considering building a passive house as an investment, the timing could be useful.
What the changes actually mean
Under the new rules, investors who buy new residential properties – including those built on vacant land or through knock-down rebuilds that genuinely add to housing supply – will continue to have full access to negative gearing. They’ll also be able to choose between the existing 50% capital gains tax (CGT) discount or the new cost base indexation arrangement when they eventually sell.
Investors who buy existing properties after the announcement date of 12 May 2026 lose access to negative gearing against their other income from 1 July 2027. Instead, losses will be carried forward to offset future property income only.
The practical effect is straightforward: the tax advantages of property investment are now tilted firmly toward new construction.
Where passive house fits in
A newly built passive house design in Australia qualifies as a new build under the government’s definition, meaning it retains full negative gearing access and CGT flexibility for the investor.
But the financial advantages of a passive house investment go well beyond the tax treatment.
The operational cost profile of a passive house is fundamentally different from a conventional new build. Energy costs are dramatically lower, maintenance demands are more modest and the absence of gas appliances eliminates an entire category of ongoing expense.
For a rental property, these lower operating costs improve the net rental yield from the outset, which is even more important in an environment where negative gearing losses can no longer be offset against salary and wages for existing property investors.
The comfort and air quality that passive house designs deliver also translate directly into rental appeal. As the short-term rental market has already demonstrated – with properties like Pepper Tree Passive House ranking among Australia’s most wishlisted Airbnbs – tenants and guests are increasingly willing to pay a premium for homes that are comfortable, quiet and energy efficient.
The new build premium
The construction premium for a passive house over a conventional new build is something to bear in mind. It can be 5-15%, depending on the design, site and specification. But in an investment context, that premium now needs to be weighed against the full picture: retained negative gearing access, lower operational costs, stronger rental appeal and a certified performance credential that is increasingly valued by tenants and buyers.
For investors who were already considering a new build, the Budget changes make the case for building to passive house standard rather than conventional minimum code stronger than it has ever been. The tax framework now rewards new construction and passive house design is the most effective way to make that new construction perform.
