Useful before precise
Our tools help Australian property buyers estimate transfer duty, concessions, surcharges, and other upfront purchase costs across every state and territory.
About
Who publishes Stamp Duty Calculator, what it provides, and how its work is maintained.
Last updated: 28 July 2026
Who publishes this website
Stamp Duty Calculator is published and maintained by MoneyToolkit, an independent Australian publisher of practical financial calculators and plain-English guides.
MoneyToolkit is responsible for the calculators, editorial content, updates, and corrections on this site. We use a publisher identity so the work is accountable without requiring an individual contributor to make their personal identity public.
We are not affiliated with a revenue office, conveyancing practice, property agency, lender, or government body. Advertising does not influence results or editorial conclusions.
What we build
The site includes national and state calculators plus tools for first-home buyers, foreign buyers, investors, vacant land, commercial property, transfers, and state comparisons.
They are designed for buyers and investors doing early budgeting or checking questions to raise with a conveyancer, solicitor, or revenue office.
Sources you can inspect
We prioritise state and territory revenue-office calculators and guidance, legislation, regulations, published thresholds, and official concession information.
Reviewed when inputs change
We prioritise review when a jurisdiction changes duty rates, thresholds, concessions, surcharges, official guidance, or calculator logic.
Private by design
Calculator inputs are processed in your browser. You can use the tools without creating an account or sending the values you enter to us.
How to assess our work
Read the calculator methodology for the model, assumptions, and sources, and the editorial policy for our sourcing, review, and independence standards. If something appears wrong or out of date, the corrections policy explains how to report it.
Important limitation
Duty can depend on contract date, dutiable value, property use, residency, ownership history, eligibility evidence, linked transactions, and transitional rules. Obtain a formal assessment or professional conveyancing advice before settlement.