Interest rates are the main driver, not our tax changes
In the ongoing tension between housing affordability and market stability, Australian Housing Minister Clare O'Neil has stepped forward to reframe a gathering anxiety: that federal budget reforms to negative gearing and capital gains tax will send house prices into freefall. She does not deny that prices may fall, nor that investors are already hesitating — but she insists the government is not the architect of any coming disruption. Interest rates, she argues, remain the deeper force shaping the market, and the budget's true ambition is not to crash the system but to quietly redirect it toward those who wish to live in homes rather than profit from them.
- Major banks Morgan Stanley and Westpac are sounding alarms, with forecasts of investor activity dropping by a third and warnings of a sharp 'air pocket' price collapse driven by policy uncertainty layered on top of high interest rates.
- Auctions have already slowed as buyers and investors freeze in place, waiting to understand what the new tax landscape will mean for their returns and borrowing power.
- The government is holding its ground, pointing to Treasury and Grattan Institute modeling that suggests only a modest 2 percent slowdown in price growth — a far more measured outcome than the 10 percent drop circulating in market commentary.
- Behind the scenes, the policy is still being shaped: business groups are pressing for expanded capital gains tax exemptions, and the government has acknowledged technical flaws in how the new rules apply to startups and zero-cost-base assets.
- The broader bet is that redirecting 75,000 homes from investors to owner-occupiers, combined with a decade-long commitment to build 420,000 new homes, will rebalance a market long tilted away from ordinary Australians.
Housing Minister Clare O'Neil pushed back this week against fears that the federal budget will trigger a housing market collapse. Prices may fall, she conceded, and major banks are indeed warning of serious disruption — but she was firm that the government's tax reforms are not the primary cause.
The budget proposes ending negative gearing for newly purchased homes and replacing the 50 percent capital gains tax discount with a smaller, inflation-adjusted version. These changes have unsettled the market. Morgan Stanley believes they will constrain investor borrowing and lower expected returns, while Westpac forecasts a third drop in investor activity and a fifth drop in overall housing turnover — with the risk of a sudden price fall if uncertainty compounds with high interest rates.
O'Neil's counter-argument rests on Treasury modeling, backed by the Grattan Institute and Commonwealth Bank, which points to only a mild 2 percent slowdown in price growth. "The biggest driver of house prices in our country is what goes on with interest rates," she said — meaning the Reserve Bank, not Canberra, holds the decisive lever.
The minister framed the reforms as a deliberate rebalancing. The government expects 75,000 homes to move from investor to owner-occupier hands, alongside a $2 billion infrastructure injection projected to generate 30,000 new homes and a decade-long target of 420,000 homes in total. More supply, the logic runs, should eventually ease rents even if prices dip in the short term.
The policy is still being refined. Business groups have pushed for capital gains tax exemptions to be extended to firms with turnover up to $10 million, and O'Neil acknowledged a technical flaw affecting startups with a zero cost base. "We'll work through this and we will get to the right landing point," she said.
The government's wager is that it can cool investor demand and redirect capital toward construction and owner-occupancy without setting off a crash — and that when the final verdict arrives, it will be the Reserve Bank's interest rate decisions, not the budget, that history holds responsible.
Housing Minister Clare O'Neil pushed back hard this week against the idea that her government's budget is about to crater the housing market. Yes, house prices might fall by 10 percent. Yes, major banks are warning of significant disruption. But no, she insisted, the government's tax changes won't be the culprit.
The budget proposes two big shifts: ending negative gearing for homes purchased after budget night, and replacing the 50 percent capital gains tax discount with a smaller one that only accounts for inflation. These changes have spooked the market. Auctions have slowed as buyers and investors wait to see what happens. Morgan Stanley analysts believe the reforms could reverse home prices by constraining borrowing capacity for investors and lowering expected returns. Westpac's forecasts are even more dire—the bank expects investor activity to drop by a third and overall housing turnover to fall by a fifth. The bank's research team flagged the risk of an "air pocket," a sharp price drop driven by uncertainty over the tax changes combined with higher interest rates.
But O'Neil was adamant that these are not the main story. "The biggest driver of house prices in our country is what goes on with interest rates," she said. Treasury has modeled the tax changes and found only a "mild" affordability impact, she noted. The Grattan Institute and Commonwealth Bank have backed Treasury's forecast that house price growth will slow by about 2 percent in the short term—a far cry from the 10 percent drop some analysts are predicting.
The minister framed the budget as a trade-off worth making. Yes, there will be some downward pressure on prices. But the government expects 75,000 homes to shift from investor ownership to owner-occupiers as a result of the tax changes. That's a deliberate redistribution of housing stock toward people who actually want to live in their homes rather than treat them as investment vehicles. O'Neil also emphasized the government's broader housing push: a $2 billion injection into housing infrastructure expected to generate about 30,000 new homes, and a decade-long commitment to build 420,000 new homes total. More supply, the logic goes, should eventually push rents down, even if prices wobble in the near term.
The government is not done tinkering with the policy, though. Business groups have warned that the capital gains tax reforms will damage investment and productivity. They've asked for the small business exemptions to be expanded—specifically, for the turnover threshold to rise from $2 million to $10 million. O'Neil acknowledged the government is considering amendments. She also flagged a technical problem: the new capital gains tax calculation doesn't work perfectly for businesses that start with a cost base of zero, like many startups. "We'll work through this and we will get to the right landing point," she said.
What's clear is that O'Neil is betting the government can reshape the housing market without triggering a full-blown crash. The tax changes are meant to cool investor demand and redirect capital toward new construction and owner-occupancy. Interest rates, not policy, will be the real test. If the Reserve Bank keeps rates high, prices will fall regardless of what Canberra does. If rates come down, the tax changes might barely register. Either way, O'Neil is insisting the government is not the villain in this story—just a player trying to rebalance a market that has favored investors over ordinary Australians for too long.
Notable Quotes
The biggest driver of house prices in our country is what goes on with interest rates. The tax changes we are making in the budget are not the main driver.— Housing Minister Clare O'Neil
We are building more homes through our policies. Treasury has looked at the entire $47 billion package, and said the home building aspect will build about 420,000 new homes over the decade.— Housing Minister Clare O'Neil
The Hearth Conversation Another angle on the story
When the minister says interest rates are the main driver, is she essentially telling investors not to blame the government if prices fall?
Partly, yes. But she's also making a technical point—Treasury's own modeling shows the tax changes alone would only slow growth by about 2 percent. The bigger forces are monetary policy and broader economic conditions. She's trying to separate what the government controls from what it doesn't.
But Westpac is forecasting a fifth of housing turnover will disappear. That's not a small number.
It's not. And that's where the tension lives. The government wants to reduce investor activity—that's the whole point of ending negative gearing. But they're hoping the pain is temporary and that new construction fills the gap. Whether that actually happens is the real question.
What about those 75,000 homes shifting to owner-occupiers? Is that a win or just a reshuffling?
It's both. Fewer investors means fewer bidders at auctions, which could help first-time buyers. But it also means less rental supply, which could push rents up. The government is betting that new construction will offset that. It's a gamble.
The minister mentioned amendments being considered. What's really at stake there?
The small business exemptions. If you lift the turnover threshold from $2 million to $10 million, you're letting a lot more businesses avoid the new capital gains tax. That costs the government revenue and potentially undermines the whole point of the reform. It's a political negotiation playing out in real time.
So the government is trying to have it both ways—reshape the market and keep business happy?
Exactly. They want to cool investor demand without killing investment entirely. It's a narrow path, and the amendments suggest they know they haven't quite found the right balance yet.