How the numbers on this site are made
Every figure is footnoted to the page it came from, with the date it was last checked. Where no source publishes a number, the page says so.
In short. This site holds 58 sourced figures and rules, 54 of them from government pages or legislation. Rates, thresholds and deadlines come from revenue offices and consumer regulators, and the calculator is tested against the worked examples they publish.
Where the figures come from
- Duty rates and thresholds: the revenue office for that state, from its own rates or concession page, or the Act where the office publishes a formula there.
- First home buyer relief: the scheme's official page, including its residence conditions and dates.
- Cooling-off: the state government or consumer regulator, such as the NSW Government or Consumer Affairs Victoria.
- Process descriptions: government buying guides, reworded carefully where the exact wording matters.
How the calculator is checked
The brackets in the calculator are the same records that feed the tables and the source notes, so a rate change is edited in one place. Before each update, a test runs the calculator against the worked examples published by Revenue NSW, SRO Victoria and the Queensland Revenue Office, and against figures worked by hand from each state's rate table. Where an office publishes a concession without its formula, the calculator shows the most you could pay and links to the official calculator instead of guessing.
What we have not been able to confirm
- A range for conveyancing fees and disbursements. No government body publishes one.
- The current duty rates for South Australia and the ACT, because their revenue office pages refused our automated checks. The calculator links to their own tools.
- Whether only solicitors may do conveyancing in Queensland and the ACT, which no official page we found states plainly.
- Cooling-off rules in South Australia, Western Australia, Tasmania, the ACT and the Northern Territory.
How current it stays
Every figure carries an expiry date. Duty rates expire at the end of the financial year, because that is when most of them change, and scheme figures can expire sooner. A check before each update lists anything past its date, and another fetches every source link to catch pages that have moved. Figures on this site were last checked on 16 September 2026.
What this site is not
It is not a government website, a law practice or a licensed conveyancer, and it is not affiliated with any revenue office. Nothing here is legal, tax or financial advice. Whether a concession applies to you is decided by the revenue office on your contract, not by a calculator.
How it is paid for
This site may show advertising. Ads never change our figures. It may also, once quote requests open, pass a request to conveyancers or solicitors with the person's consent, and those firms may pay a fee for the introduction. Quote requests are not open yet, so no request has been passed on and no fee has been paid. Neither source of money has any say over a rate, a threshold or a deadline published here.
Who is behind it
The business details of whoever runs this site will be published on this page before it launches.
You can also reach us through the contact page.