Land tax is one of the most commonly overlooked costs in property investment. As an agent, here’s how to help your client factor it into long-term planning alongside rental income and capital growth.
Land tax is a state-based tax calculated on the total taxable value of land owned within a given state.
It applies to investment properties, commercial properties and vacant land, but excludes the owner’s principal place of residence.
It is assessed annually, meaning it is not a one-off cost like stamp duty but an ongoing obligation that increases as land values rise and more properties are added to a portfolio.
Because it is levied at the state level rather than federally, land tax operates differently depending on where an investor holds property, and that variation is something many investors fail to account for when planning their portfolios.
How the thresholds work
Each state administers its own land tax scheme, with different thresholds, rates and rules.
The amount an investor owes depends entirely on where their properties are located and how much land they hold in each jurisdiction.
In New South Wales, the general threshold is $1.075 million.
Victoria applies land tax from as low as $50,000, one of the lowest entry points in the country.
Queensland’s threshold sits at $600,000, while South Australia’s is $732,000.
Western Australia, the ACT and Tasmania each have their own thresholds and rate structures as well.
| State / Territory | Tax-Free Threshold | Notes |
|---|---|---|
| New South Wales | $1,075,000 | General threshold; lower threshold of $275,000 for trusts |
| Victoria | $50,000 | One of the lowest thresholds in the country |
| Queensland | $600,000 | Trusts taxed from $350,000 |
| South Australia | $732,000 | Progressive rates apply above threshold |
| Western Australia | $300,000 | Concessional threshold; general rate applies above |
| Tasmania | $100,000 | Applies to land used for business or investment purposes |
| Australian Capital Territory | No threshold | Land tax applies to all rented residential properties regardless of value |
| Northern Territory | No land tax | NT does not impose land tax |
Tax is calculated on the unimproved value of land, the land itself, excluding any buildings or structures, across all holdings within a single state.
Once the combined value exceeds the relevant threshold, tax applies to the amount above it on a sliding scale that increases with total value held.
It is worth noting that land valuations are conducted by state revenue offices and may differ from market valuations or council rates notices.
Investors should check how their land is assessed in each state, as the taxable value may shift from year to year independent of what is happening in the broader property market.
How liability grows with a portfolio
The compounding nature of land tax is where many investors are caught out.
Each additional property purchased in the same state adds to the combined land value, pushing the total further above the threshold and increasing the annual bill, even if individual property values have not changed significantly.
For investors who have built their portfolios gradually over time, often within the same state for convenience or familiarity, the cumulative land tax liability can reach a scale that meaningfully affects cash flow.
Jack Carter, Director of Command Property, says it is one of the most commonly overlooked costs in property investment.
“Land tax is a hidden cost that can quickly eat into your profits if not managed correctly,” he says.
“If your entire portfolio is concentrated in one state, exceeding the land tax threshold becomes inevitable, holding properties in a single state could result in land tax bills of $50,000 to $60,000 annually.”
Diversification as a management tool
Because each state applies its threshold independently, spreading a portfolio across multiple states allows investors to access a fresh threshold in each jurisdiction, rather than compounding liability in one place.
An investor holding five properties spread across three states will generally carry a lower total land tax liability than an investor holding the same five properties in a single state, even if the underlying land values are identical.
The structural benefit of diversification here is straightforward: more thresholds mean more headroom before tax applies.
“Spreading your investments across different states allows you to benefit from each state’s unique tax-free thresholds and lower your overall tax exposure,” Mr Carter says.
Geographic diversification also provides some protection against policy risk.
Victoria’s land tax increases significantly raised costs for investors concentrated in that state, an outcome that a portfolio spread around the country, would have been better insulated against.
“If your portfolio is diversified, policy changes like this in one state won’t derail your entire investment strategy,” Mr Carter adds.
How to educate your clients
Land tax does not appear on a purchase contract or a standard lending assessment, which is part of why it catches investors unprepared.
It is not factored into the upfront calculations most buyers run when assessing affordability or yield, and by the time the liability becomes significant, a portfolio may already be heavily concentrated in one state.
Although the Federal Budget did not make major changes to land tax, investors should also be aware that land tax rules can change.
State governments have demonstrated a willingness to adjust thresholds, rates and exemptions, sometimes with limited notice, making it important to stay across the rules in each state where property is held.