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Commercial Stamp Duty Calculator

Select your state to jump straight to the current official stamp duty calculator, so you always get an up-to-date figure.

Stamp duty thresholds are reviewed and indexed regularly in most states, so rather than risk showing you an outdated number, we’ll take you straight to the source.

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Commercial property stamp duty is calculated on a sliding scale that’s set individually by each state and territory, and thresholds are reviewed and adjusted over time, in several states every financial year. Rather than show you a number that could already be out of date, this tool takes you straight to the official government calculator for your state, so the figure you get is always current.

Want help understanding what the number means for your deal? Call us on 1300 562 696 or get in touch and we’ll be back to you shortly.

Find Your State’s Official Calculator

Select your state or territory below to go straight to its current stamp duty calculator.


Opens the current official government calculator for your state in a new tab.

What Affects Your Result

When you’re using the official calculator, a few things will change the figure it gives you.

01

Purchase price vs market value

Duty is calculated on the higher of the two, so use an independent valuation if the purchase price is below market value.

02

GST treatment

If GST applies to the sale, most states calculate duty on the GST-inclusive price, so check which figure the calculator is asking for.

03

Foreign purchaser status

Most mainland states add a surcharge for foreign purchasers on top of the standard rate, which the official calculator should prompt you for separately.

Talk Through What the Number Means

A stamp duty figure is only one part of your settlement costs. Talk through your full purchase with a specialist commercial broker, with no cost and no obligation. Call us on 1300 562 696 or get in touch and we’ll be back to you shortly.

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Disclaimer: This tool links to official third-party government calculators and does not itself calculate stamp duty. We are not responsible for the content or availability of external government websites. The information provided here is general in nature and should not be considered financial, tax or legal advice. Always confirm the duty payable on your specific purchase with the relevant state or territory revenue office or your solicitor.