Land Tax Calculator

Land value, not property value, and why your home being exempt matters

Land tax is charged on the unimproved value of the land, meaning what the bare block would be worth with nothing on it. Strip away the house, the landscaping and the driveway and what is left is the figure that counts.

That distinction does real work. In a suburb where houses sell for $1.4 million, the unimproved land value might be assessed at $750,000. In New South Wales that sits comfortably under the threshold and you owe nothing. In Victoria you would have been paying since the land was worth $50,000.

The other thing keeping most Australians out of this entirely is the principal place of residence exemption. In every jurisdiction that levies land tax, the home you actually live in is exempt. That single rule means the tax lands almost entirely on people who own land beyond their own home: a rental, a holiday house, a commercial site, a vacant block. If you own only the place you live in, land tax is not your problem. If you own your home and an investment property, only the investment property counts.

The thresholds are nowhere near each other

The point at which land tax starts varies so wildly that it can change the economics of an investment decision on its own.

New South Wales is the generous end at $1,075,000, then $100 plus 1.6% on the excess, with a premium rate of 2% above $6,571,000. Both thresholds have been frozen since 2024. Victoria is the opposite at $50,000, the lowest in the country, which catches almost any investment property in metropolitan Melbourne. Queensland sits in the middle at $600,000, with the oddity that its rate actually falls from 1.65% to 1.25% between $3 million and $5 million before climbing again.

South Australia is at $936,000 and, unlike NSW, indexes annually, lifting thresholds 12.44% for 2026-27. It also issues no assessment at all if the tax works out under $20. Western Australia starts at $300,000, and Perth metropolitan land pays the metropolitan region improvement tax on top at 0.14% of every dollar above that, which most calculators quietly omit. Tasmania starts at $125,000 and reaches 1.5% at just $500,000 of land value.

The ACT figure is the one that stops people. The same $900,000 of land costs more than three times as much in Canberra as in Brisbane, and it is not a rounding error. It is a structurally different design with no threshold and a compulsory fixed charge.

Aggregation, trusts, and thresholds that quietly raise themselves

Every state aggregates. All your taxable land in that state is combined before the threshold applies, so you do not get a fresh threshold per property. Three Victorian blocks at $200,000 each are assessed as $600,000, not as three separate amounts that each duck under. People check one property against the threshold, conclude they are fine, and are wrong.

Trusts are where it gets genuinely complicated. Victoria assesses trust land separately and applies a surcharge scale rather than the ordinary threshold. In New South Wales a discretionary trust generally cannot access the general threshold at all. In Queensland, trusts sharing the same beneficiaries can be aggregated across structures. The rules are state-specific and the cost of getting them wrong is real, so the calculator above assumes land held by an individual.

Joint ownership has its own wrinkle. Your proportionate interest in jointly owned land is aggregated with your other holdings for your individual assessment, so half of a jointly owned block plus a property in your own name are counted together.

Frozen thresholds are the subtlest trap of all. New South Wales has not moved its general threshold since 2024 while land values have kept rising. Every year more investors cross into the taxable zone, or move up a bracket, with no change in the law and no vote in parliament. It is a rate rise that requires no legislation. South Australia avoids it by indexing annually. New South Wales does not.

The two that break the pattern

Most jurisdictions follow the same shape: a threshold, then progressive rates above it. Two do not.

The Northern Territory is the one everyone forgets. There is no land tax at all. No threshold, no rate, no assessment notice. Own an investment property in Darwin and this particular bill never arrives, which is one reason the holding costs there look different from the southern capitals. Whether that offsets a smaller tenant pool is a separate question, but the tax position is unambiguous.

The ACT goes the other way. It charges from the first dollar of land value on residential property that is not your home, with no free zone at all. The structure is a fixed charge of $1,778 from 1 July 2026, plus a marginal valuation charge on the average unimproved value, which is averaged over up to five years to smooth out volatility. The bands run from 0.54% on the first $150,000 up to 1.26% above $2 million.

Two consequences worth planning for. The averaging means a sudden jump in land values does not hit your bill immediately, and a fall takes just as long to help. And the ACT bills quarterly rather than annually, so a Canberra rental generates four land tax bills a year, which matters for cash flow in a way an annual assessment does not.