New Build vs Established: Why One Word in Your Contract Now Decides Your Tax Position

There has always been a difference between buying a new build and buying an established property. It used to be a lifestyle preference or a strategy choice. It is now a tax outcome, and the distinction is worth understanding properly rather than assuming you already know it.

Why the New Build Exemption Exists

Under the negative gearing reforms taking effect from 1 July 2027, established residential properties purchased after 7:30pm on 12 May 2026 lose the ability to have their rental losses offset against non-rental income. New residential properties are exempt from that change entirely — they retain full negative gearing, and they retain the current capital gains tax treatment as well.

So the obvious question is: what actually counts as "new"?

How the ATO Actually Defines "New Residential Premises"

This isn't a matter of opinion, and it isn't simply "a property nobody has lived in." The ATO has a specific, tested definition of new residential premises, and it turns on things like whether the property has previously been sold as residential premises, and whether it has been substantially renovated. A property can be brand new in the sense that it's just been built and never occupied. A property can also lose its "new" status the moment it settles and is sold on, even if the buyer is only the second owner. Off-the-plan purchases, house and land packages, and substantially renovated properties can all sit in genuinely different positions depending on the specific facts — not the marketing material.

Why This Distinction Is Now Worth Real Money

This matters because the financial gap between the two categories has widened considerably. A property that qualifies as new keeps a tax position that an established property purchased after Budget night simply does not have access to. That's not a small difference over a ten or twenty year hold. It's the kind of difference that should be checked and confirmed in writing before a contract is signed, not assumed from how an agent has described the property.

Verify the Category, Don't Infer It

I'd treat this the same way I'd treat any contractual term with real financial consequences attached to it: verify it, don't infer it. If a property is being marketed as new or near-new, that's a claim, not a legal conclusion. The distinction between a defect being present and a defect being disclosed has tripped up plenty of buyers in Victorian courts over the years — different issue, same lesson. In property, the word used to describe something and the legal category it actually falls into are not always the same thing. Increasingly, which one applies to your purchase is the difference between keeping your tax position and losing it.