The prevailing narrative on property tax reform is a masterclass in economic illiteracy. Pundits look at Victoria’s recent tax hikes on secondary dwellings and claim—with a straight face—that squeezing investors won’t hurt supply or push up rents. They point to short-term data like a drunk leaning on a lamppost, using it for support rather than illumination.
The logic is seductive. Tax the "greedy" investors, they sell their homes, first-time buyers swoop in, and the housing crisis dissolves. It sounds like a fairy tale because it is one.
When you tax a specific asset class, you don’t magically redistribute wealth. You redistribute scarcity. Victoria isn't proving that tax rules don't affect supply; it’s proving that the lag between policy and pain is long enough for politicians to get re-elected before the roof falls in.
The Myth of the Neutral Tax
Economists who argue that land taxes or increased levies on investors are "neutral" are living in a textbook. In the real world, capital is fluid and cowards are everywhere. If you increase the cost of holding an investment property in Melbourne, that capital doesn't sit around and wait for more punishment. It moves to Queensland, to the ASX, or into offshore tech stocks.
The "Just look at Victoria" argument assumes the housing market is a closed loop. It isn’t. By making it more expensive to own a rental, you aren't just helping a renter become an owner; you are actively discouraging the construction of new rental stock.
Developers don't build apartment towers because they love the skyline. They build them because the math works. When you remove the investor exit strategy by nuking their yields with land tax surcharges, the math stops working. The project gets shelved. The "supply" that the critics claim won't shrink never gets born in the first place.
The Quality Death Spiral
Nobody talks about the maintenance gap. This is where the "pro-renter" tax policies become most cruel.
When a landlord’s margins are gutted by new state levies, they don't just absorb the cost out of the goodness of their hearts. They cut expenses. The first thing to go? The non-essential repair. The second thing? The cosmetic upgrade.
I’ve seen this play out in rent-controlled and high-tax jurisdictions globally. You end up with a "Slumlord Sovereignty." The property stays in the rental pool because the owner can't afford to sell at a loss, but they also can't afford to fix the leaking tap or the moldy ceiling.
By taxing the "passive income" of the investor, you are essentially taxing the maintenance fund of the tenant. The home becomes a depreciating shell.
Why the First-Home Buyer Argument Fails
The claim is that for every investor who sells, a first-home buyer gets a win. This is a zero-sum fallacy.
An investor-owned property often houses three or four unrelated adults in a share-house arrangement. When that house is sold to a professional couple as their first home, the occupancy drops. You have successfully moved two people into a home but displaced four. Congratulations, you just increased the net demand for housing while claiming to fix the market.
This is the nuance the "Victoria is fine" crowd ignores. They count titles, not bedrooms. They track ownership, not occupancy density.
The Invisible Floor Under Rents
Critics argue that rents are set by "what the market can bear," not by the landlord’s costs. This is partially true in a vacuum, but it ignores the floor.
If the cost of holding a property exceeds the rental income plus the expected capital gains, the investor exits. If enough investors exit, the supply of available rentals drops. When the vacancy rate hits 1%—as it has in major Australian hubs—the "market" can suddenly bear a lot more than it could twelve months ago.
Taxing investors is an indirect way of bidding up rents by proxy. You are tightening the noose on supply and then acting surprised when the price of the remaining stock skyrockets.
The Victoria Delusion
Victoria's recent "COVID debt" land tax changes are being heralded as a harmless revenue raiser. It’s a delusional take.
We are currently seeing a record number of Victorian listings hitting the market from investors. While this might provide a temporary cooling of price growth, it is a sugar hit. Once that stock is absorbed by owner-occupiers, the rental pool is permanently smaller.
What happens next year when 100,000 migrants arrive in Melbourne and find that the rental stock has been cannibalized by the tax office? Rents won't just rise; they will explode.
Stop Asking the Wrong Question
The question isn't "Do tax rules shrink supply?"
The question is "Why are we using tax policy to solve a zoning problem?"
We treat housing like a fixed pie that needs to be sliced differently. It’s not. We need a bigger pie. By focusing on punishing the people who provide 90% of the rental housing in this country, we are distracting ourselves from the real culprits:
- NIMBY-led local councils that block density.
- State governments that use property as a personal ATM through stamp duty and land tax.
- Federal policies that pump demand without lifting a finger on the supply side.
The Harsh Reality of the "New Normal"
If you want lower rents, you need more landlords. It’s an uncomfortable truth for the "tax the rich" brigade, but it’s the only one backed by the reality of the market.
You need competition among providers. When five landlords are fighting for one tenant, the tenant wins. When five hundred tenants are fighting for one landlord—which is exactly what happens when you tax investors out of the market—the tax office wins, and everyone else loses.
We are currently incentivizing the "accidental landlord" to leave and the "institutional predator" to stay. Individual investors, who are often more flexible and less clinical, are being replaced by nothing.
If you think the housing market is broken now, wait until you see it after another five years of "harmless" tax hikes. You can't tax your way to an affordable city. You can only tax your way to a stagnant one.
Stop celebrating the departure of capital. Start worrying about what happens when it doesn't come back.
Build more. Tax less. Get out of the way.
