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· Posted on
May 15, 2026

The Federal Budget just dropped... and property investors are wondering what they did to Jim Chalmers to deserve this pain

Australia’s Budget overhauls property tax rules, reshaping investor incentives and sparking debate on housing and rents.

What's the key learning?

  • Australia is shifting tax incentives away from existing investment properties and toward newly built housing.
  • Replacing the CGT discount with inflation indexation could reduce speculative property investing over time.
  • The reforms may improve housing affordability for buyers, but tighter rental supply could place upward pressure on rents.

Background: This was Jim Chalmers' fifth Federal Budget as Treasurer... and after weeks of speculation, the Labor government finally unveiled major changes to Australia's property tax system. The focus? Housing affordability, tax reform and trying to reshape incentives for property investors.  


What happened: There were a LOT of big changes in this Budget - in particular around property investing rules:

  • From 2027, the 50% capital gains tax discount on investment properties will be scrapped and replaced with inflation indexation.
  • At the same time, negative gearing rules are tightening too -investors will only be able to negatively gear new homes, not existing properties.

Together, they are the biggest shake-up to Australia's property tax system in 25 years.

What else: The budget also included:

  • $2 billion infrastructure investment aimed at unlocking 65,000 new homes
  • One-off tax offset of $250 for Australian workers
  • Small businesses also scored a win, with the $20,000 instant asset write-off being made permanent.

But despite the extra measures... it's the CGT and negative gearing reforms dominating the conversation.

What's the key learning?


💡 Negative gearing is when your investment property costs you more to run than it earns in rent. Expenses like mortgage interest, council rates, maintenance and management fees can currently be deducted against your taxable income... which is why around 1.3 million Australians negatively gear a property, according to the ATO.

💡 The new rules are designed to push investors toward building new homes instead of buying existing ones. From July 2027, investors will only be able to negatively gear newly built properties, removing the tax benefit for most existing investment homes.

💡 The housing impact could go both ways. Some economists think property prices could soften because investing becomes less attractive, but rents could rise at the same time if fewer investors buy rental properties. With Australia's vacancy rate already sitting at just 1.1%, even a small drop in rental supply could tighten the market further.

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