Land Value vs Property Value for Land Tax: What to Enter in a Calculator

Short answer

For land tax, do not enter the full market value of the property unless the calculator specifically asks for it.

Most Australian land tax calculations start with a land-only valuation. NSW uses unimproved land value. Victoria commonly refers to site value or taxable value. Queensland uses the taxable value of freehold land. Those numbers are different from the price a buyer might pay for the house, apartment or townhouse.

Use the Land Tax Calculator with the relevant land value, not the agent's price guide. If you only know the purchase price, treat any estimate as a rough placeholder until you check the valuation figure on an assessment notice, council rates notice, land valuation notice or state valuation portal.

Why the distinction matters

Land tax is meant to tax landholdings, not the building sitting on the land.

That sounds simple, but it creates a common calculator mistake. A $1.4 million house might include a large building component. A $900,000 apartment might include only a small share of a valuable site. A townhouse can sit somewhere in the middle.

If you enter the full property market value where the calculator expects land value, the estimate can be too high. If you ignore other taxable land held in the same state, the estimate can be too low.

The main valuation terms

The exact label differs by state, so check the wording on the notice rather than guessing from the sale price.

NSW example: market price is not the land tax input

Assume an investor owns a Sydney townhouse with a market value of $1,300,000.

The relevant NSW land tax question is not "what could the townhouse sell for?" It is the combined unimproved land value of the investor's taxable NSW holdings, averaged under Revenue NSW's rules.

Revenue NSW says unimproved value means the land itself, excluding buildings or other improvements. It also says the threshold applies to the combined land value of all taxable NSW property owned, not each property separately.

If the townhouse has a 3-year average land value of $720,000 and the owner has no other taxable NSW land, the ordinary NSW individual threshold may mean no ordinary land tax. If the same owner also holds another taxable NSW property with $500,000 of land value, the combined figure becomes $1,220,000 and the calculator result changes.

Use the NSW Land Tax Calculator with the combined taxable land value, then check the assessment against Revenue NSW if trusts, joint ownership, foreign owner surcharge or exemptions are involved.

Victoria example: site value drives the estimate

Victoria uses site value for land tax. SRO Victoria explains site value as the value of the land only, while capital improved value includes the land plus buildings, fences or other capital improvements.

Assume a Melbourne investor owns a detached rental property worth $1,250,000 in the market. The taxable site value might be $820,000. For the Victoria Land Tax Calculator, the useful input is the taxable site value, plus any other taxable Victorian site values held by the same owner.

That difference can be material. Entering $1,250,000 instead of $820,000 could overstate the annual estimate. Ignoring a second property could understate it.

Queensland example: freehold land value at 30 June

Queensland land tax is calculated on freehold land held at midnight on 30 June. QRO says the rate depends on owner type, total taxable value and exemptions.

For an individual, QRO lists a $600,000 threshold based on the total taxable value of freehold land. Companies, trustees and absentees can have different thresholds and rates.

That means a Queensland investor should enter the total taxable freehold land value, not the full market value of the properties. If the property is held in a company or trust, select the owner type carefully and confirm the outcome with QRO or an adviser.

Apartments and units need extra care

Apartments often confuse land tax estimates because the owner does not usually own the entire site.

The relevant figure is usually the lot's attributed share of land value, not the apartment's sale price. A $780,000 apartment might have a much lower land value share, but it can still count toward the owner's aggregated taxable land if it is an investment property.

For the apartment-specific version of this issue, read Do Apartments Pay Land Tax in Australia?.

How to find the right number

Start with documents that use government valuation data:

• land tax assessment notice,
• council rates notice,
• state land valuation notice,
• state valuation search or property enquiry portal,
• settlement or conveyancing documents that disclose land value,
• strata records where the issue is a unit or apartment.

Do not rely only on a real estate listing, automated property estimate or lender valuation. Those may be useful for a different purpose, but they are not automatically the land tax valuation.

Calculator checklist

Before using a land tax calculator:

1. Choose the state or territory where the land is located.
2. Use land value, site value or taxable value, not full market value.
3. Add other taxable land held by the same owner in that state.
4. Exclude land that is genuinely exempt, such as a principal place of residence, only if the exemption applies.
5. Select the right owner type: individual, company, trustee, absentee or foreign owner where relevant.
6. Treat surcharge land tax, trusts and joint ownership as separate checks if the calculator does not model them fully.
7. Compare the estimate with the official assessment or revenue-office calculator before relying on it.

Common mistakes

• Using the purchase price as the land value.
• Entering capital improved value where site value is needed.
• Looking at one property instead of aggregated landholdings.
• Assuming apartments never create land tax exposure.
• Assuming a principal residence exemption applies after the property becomes a rental.
• Treating a calculator result as a revenue-office assessment.
• Forgetting that trusts, companies, absentees and foreign owners may be assessed differently.

Sources

• Revenue NSW: Land tax thresholds and rates, checked 4 July 2026.
• Revenue NSW: How land tax is calculated, checked 4 July 2026.
• SRO Victoria: Site values and land tax, checked 4 July 2026.
• Queensland Revenue Office: What is land tax?, checked 4 July 2026.
• Queensland Revenue Office: Land tax rates for individuals, checked 4 July 2026.

General information disclaimer

This guide is general information only. It is not tax advice, legal advice, financial advice, a valuation or a revenue-office assessment. Land tax depends on state rules, owner type, exemptions, surcharges, valuation data, aggregation and documents lodged with the relevant authority. Check the relevant revenue office and speak with a licensed professional where appropriate.