Corrections Policy

Corrections & updates log

A public record of substantive changes to this site's calculators and content. Corrections fix something we got wrong; updates track routine maintenance such as annual rate changes. Minor copy edits are not logged.

This public log was established on 4 Aug 2026. Earlier entries were reconstructed from our dated version history.

1. update5 Aug 2026

   Clarified that transfer duty is one type of stamp duty, not the whole of it

   Our Stamp Duty Explained guide described stamp duty and transfer duty as simply two names for the same tax on property. That framing is common (state revenue offices use it too) but oversimplified: state duties legislation imposes several heads of duty, and transfer duty on real estate is only one of them — others include landholder duty on indirect acquisitions of land-owning companies and trusts, duty on business asset transfers (including goodwill in QLD and WA), vehicle registration duty, and insurance duty. The guide now makes clear that this site covers transfer duty on property purchases, and that stamp duty arises in many more situations than home buying. Raised by the same practising stamp duty lawyer who prompted our 4 August correction.

   Affected: Stamp Duty Explained

2. correction4 Aug 2026

   Stamp duty payment deadlines corrected across the site

   We previously said stamp duty is paid at settlement, with 3 months from contract exchange to pay in most states. That was wrong: in most states liability arises when you sign the contract, not at settlement. NSW allows 3 months from the contract date (or until settlement, if earlier); QLD requires lodgement within 30 days of signing and WA within 2 months, with duty paid once assessed; VIC and TAS measure from settlement; and in the ACT duty is paid within 14 days after title registration — after settlement. The settlement timeline planner's date calculations were corrected to match, including calendar-month arithmetic and the NSW off-the-plan deferral. Raised by a practising stamp duty lawyer via our corrections process.

   Affected: Home, Settlement Timeline Planner, Stamp Duty Explained

3. update2 Aug 2026

   2026–27 first home buyer policy settings updated

   Updated first home buyer concession settings in the calculation engine for the 2026–27 financial year.

4. update17 July 2026

   2026–27 rates and thresholds rollover

   Rolled over all state and territory duty rates, thresholds, and concessions for the 2026–27 financial year, including the expiry of Tasmania's temporary first-home and off-the-plan duty schemes on 30 June 2026.

Report a possible error

Email contact@stampdutycalcs.com.au with the page URL and a short description of what appears incorrect. For calculator issues, include the inputs needed to reproduce the result, but do not send contracts, identity documents, property addresses, foreign-residency records, finance details, or complete transaction files.

A link to an official source, legislation, regulator guidance, or other supporting evidence helps us investigate more quickly.

What happens next

1. 1

   Reproduce and verify

   We check the page, calculation path, cited source, and relevant assumptions.

2. 2

   Assess materiality

   We distinguish a factual or calculation error from a reasonable difference in assumptions or circumstances.

3. 3

   Correct the source and explanation

   If a material error is confirmed, we update the calculation or text and review related pages that may rely on the same information.

4. 4

   Record meaningful changes

   We update the page review date when the correction materially changes a result, threshold, benchmark, or conclusion.

Privacy when reporting

Send only the minimum information needed to reproduce the issue. We do not need identity documents, account numbers, tax file numbers, addresses, or complete financial records. See the privacy policy for more information.