Australia’s property market may be on the verge of one of its biggest structural shifts in decades.
The federal government’s proposed changes to negative gearing — restricting tax benefits to newly built homes from July 2027 — are designed to encourage housing construction and improve affordability. On paper, it sounds logical: incentivise investors to fund new housing supply instead of competing with owner-occupiers for established homes.
But property markets rarely behave in simple ways.
In Sydney particularly, these reforms could trigger a chain reaction with consequences far beyond what policymakers intend. Established properties may become significantly less attractive to investors, reducing demand in a buyer segment that traditionally makes up roughly one-third of the market. At the same time, the shift toward new builds could inflate prices in those developments, potentially neutralising the tax advantages that negative gearing is supposed to provide.
Meanwhile, renters may end up carrying the heaviest burden.
As established homes are sold and removed from the rental pool, inner-city rental shortages could intensify, pushing rents even higher in already unaffordable suburbs. Investors chasing tax incentives are likely to concentrate in outer suburban new developments, increasing rental supply there while worsening scarcity closer to Sydney’s employment hubs.
The result? A market distortion that could push both buyers and renters further away from where they actually want — and need — to live.
Negative Gearing Changes Could Remove a Third of Buyers from the Market
For decades, investors have formed a major pillar of Australia’s housing market. In many cycles, they account for around 30–35% of all purchasers.
That’s a huge source of demand.
The issue with the proposed reforms is that they fundamentally alter the economics of buying established investment properties. According to the latest analysis, a Sydney investor purchasing an established unit could face approximately $20,000 per year in out-of-pocket costs even after receiving rental income. For freestanding houses, that figure jumps to around $65,000 annually.
Without the ability to offset those losses through negative gearing, many investors simply won’t participate.
And that’s where the first major market shift begins.
If a third of potential buyers disappear from the established property market almost overnight, demand weakens significantly. Less competition generally means softer prices — particularly in investor-heavy areas. Suburbs with traditionally strong investor participation could experience:
Reduced buyer competition
Longer selling periods
Greater vendor discounting
Downward pressure on prices
Lower auction clearance rates
Ironically, the policy designed to improve affordability could indeed reduce prices for established homes — but not necessarily in a healthy or sustainable way.
Established Homes Leaving the Rental Market Creates a Dangerous Supply Problem
Here’s the part many people are overlooking. When investors stop buying established homes, those properties don’t magically remain rentals forever: in many cases, they’ll be purchased by owner-occupiers instead. That sounds positive initially — until you consider what happens to rental supply. Every time an established rental property is bought by an owner-occupier, one rental disappears from the market.
Over time, this creates a slow but powerful reduction in established rental stock, especially in desirable inner-city locations where apartments and terraces have traditionally housed large rental populations. This matters enormously because Sydney already has one of the tightest rental markets in the country.
Vacancy rates remain critically low in many suburbs, and rental competition is fierce. If fewer investors buy established properties, the pipeline of rental accommodation shrinks further — precisely at a time when migration levels continue expanding tenant demand.
That imbalance between supply and demand is where rents begin escalating rapidly.
And unlike home prices, rents directly impact people’s weekly cash flow and cost of living.
Why Investors Will Likely Flood the New-Build Market
The government’s strategy relies heavily on one assumption: investors will redirect their money toward new housing construction. Initially, that’s probably true: if negative gearing benefits only apply to new builds, investors seeking tax advantages will naturally focus their attention there. But there’s another economic force at play: competition.
If large numbers of investors suddenly target the same segment of the market — new apartments, house-and-land packages, and off-the-plan developments — prices in that segment are likely to rise sharply - and this is where the policy may begin undermining itself. The attractiveness of negative gearing depends partly on acquisition costs. Investors are often willing to tolerate short-term losses because they anticipate long-term capital growth and tax benefits.
However, if competition pushes new-build prices substantially higher, the economics begin deteriorating quickly. In simple terms:
Higher purchase prices mean larger mortgages
Larger mortgages mean bigger repayments
Bigger repayments increase annual losses
Tax benefits may no longer sufficiently offset those losses
Eventually, the “sweetener” of negative gearing becomes less compelling because the underlying investment is simply too expensive. In other words, the policy could unintentionally inflate new-build prices to the point where the tax incentive loses much of its practical value.
The Outer-Suburb Concentration Problem
Another likely consequence is geographical distortion. Most large-scale new housing developments are located in outer suburban growth corridors rather than established inner-city areas. That means investors chasing negative gearing incentives are unlikely to buy in suburbs like:
Newtown / Camperdown / Enmore
Bondi / Bronte
Balmain
Randwick / Coogee
Surry Hills / Redfern
Instead, they’ll be pushed toward areas with substantial new housing supply on Sydney’s fringe. This creates a two-speed rental market: outer suburban areas may eventually experience increased rental supply as investor activity concentrates there. But inner-city and middle-ring suburbs — where many renters actually want or need to live — could face worsening shortages.
That mismatch matters because housing demand isn’t evenly distributed. People often choose inner-city areas because of:
Proximity to employment
Reduced commuting times
Access to universities
Public transport connectivity
Lifestyle amenities
Family and social networks
If rental supply dries up in those locations, tenants may be forced further and further from employment centres simply because affordable rentals no longer exist nearby.
Sydney’s Inner-City Rental Crisis Could Intensify
The most severe impacts may ultimately be felt in Sydney’s premium and middle-ring suburbs because the numbers simply won’t stack up without negative gearing support. That could severely impact suburbs across:
The Eastern Suburbs
The Inner West
The Lower North Shore
These areas already experience intense rental demand due to their proximity to jobs, schools, beaches, hospitals, and transport infrastructure. If rental stock declines while demand remains strong, rents may rise far beyond wage growth. And unlike homebuyers, renters have fewer options to absorb those costs.
The result could be:
Increased rental stress
Longer commuting distances
Higher household overcrowding
Reduced lifestyle quality
Greater inequality between suburbs
Sydney risks becoming increasingly divided between those who can afford proximity and those who cannot.
The “Mum and Dad Investor” Problem
One of the more controversial aspects of the reforms is who they actually impact most. Wealthy investors may be less affected because they often structure property ownership through trusts and companies. Middle-income Australians, however, frequently buy investment properties in their personal names and rely heavily on negative gearing benefits to make the numbers work. That means the reforms may disproportionately impact:
Teachers
Nurses
Tradespeople
Small business owners
Dual-income families
First-time investors
These are the very people often described as “mum and dad investors.” Without tax offsets, many simply won’t have the financial capacity to sustain large annual losses on investment properties. Asking investors to fund $20,000-plus annual losses from after-tax income is unrealistic for most households - particularly when capital growth isn’t assured - and mortgages are costly to service.
Could This Actually Improve Housing Affordability?
Supporters of the policy argue that reducing investor demand will help first-home buyers compete for established homes. That may happen to some extent. If investor activity weakens significantly, some established property prices could soften, creating opportunities for owner-occupiers. But affordability is more complicated than purchase prices alone: if rents simultaneously surge because rental supply contracts, many aspiring buyers may struggle even more to save deposits while paying escalating rent.
This creates a paradox:
Home prices may become marginally more affordable
But renting becomes dramatically more expensive
For many Australians, that’s hardly a meaningful improvement - unless one if already positioned to purchase. Housing affordability isn’t just about buying homes — it’s also about being able to live reasonably close to work, services, and community without financial distress.
The Risk of Policy Over-correction
One phrase repeatedly raised by property analysts is that the reforms may work “too well.” That’s the central concern: the government’s goal is to redirect investment toward new housing supply. But if the policy discourages investors too aggressively from established housing, the unintended consequences could ripple across the entire rental market. Markets depend on balance. Too much investor activity can push prices excessively high. But too little investor participation can reduce rental supply and intensify housing shortages. Finding that balance is extraordinarily difficult, and in Sydney — where supply constraints, migration growth, infrastructure pressures, and affordability issues already collide — even small policy changes can produce major downstream effects.
Final Thoughts
The proposed negative gearing reforms may reshape Sydney’s property market in ways few people fully appreciate yet.
Established homes could experience weaker investor demand and softer prices. But at the same time, fewer established properties may remain available as rentals, shrinking supply in the areas where renters most want to live.
Meanwhile, investors are likely to pile into new-build developments, potentially driving those prices higher and reducing the effectiveness of the very tax incentives designed to encourage construction.
The broader risk is that Sydney develops an increasingly divided housing landscape:
Outer suburban areas absorb growing rental supply
Inner-city areas become increasingly unaffordable for renters
Long commuting distances become normalised
Rental competition intensifies in employment hubs
Housing policy always involves trade-offs. But if these reforms proceed without broader investment in housing supply, infrastructure, and public housing, the pressure may ultimately fall hardest on renters.
And in a city already grappling with affordability challenges, that could become the biggest issue of all.
FAQs
What are the proposed negative gearing changes?
The proposed reforms would restrict negative gearing benefits to newly built properties from July 2027. Investors purchasing established homes after that date would no longer receive the same tax deductions.
Why could established property prices fall?
Investors make up a significant portion of buyers in the property market. If many investors stop purchasing established homes due to reduced tax benefits, buyer demand may weaken, placing downward pressure on prices. This will have a serious impact on property purchasers who purchased at the recent peak in 2022, who may now need to sell at a significant loss.
Why could rents increase in Sydney?
As established rental properties are sold to owner-occupiers, the number of available rentals may decline. Combined with strong population growth and migration, reduced rental supply could push rents significantly higher.
Why might new-build prices increase?
If investors shift heavily toward new builds to retain negative gearing benefits, competition for those properties could intensify, driving up prices.
Which areas could be most affected?
Inner-city and middle-ring Sydney suburbs may experience the greatest rental pressure because investors may redirect purchases toward outer suburban developments where new housing supply is concentrated.



















