Editorial policy

DutyMate exists to give buyers numbers they can trust about a purchase. This policy sets out how we keep them accurate.

Sourcing

Every duty figure comes from the official state revenue-office schedule, transcribed into a dated, version-stamped dataset that records its source and the date it was verified. No number is estimated or written from memory. Because the calculator and every page share one engine, a page can never quote a different figure from the tool. Figures that cannot be sourced to an official schedule — lenders mortgage insurance, the default interest rate, borrowing power — are labelled as estimates everywhere they appear.

Keeping it current

We re-verify the datasets against the offices at least every 1 July and whenever a concession or threshold changes. Each page carries the date its data was last verified, and an automated check blocks a build that would ship a stale schedule.

Corrections

We invite corrections. Email support@inventum.com.au with the page and what you expected. We check the figure against the office source, fix it if it is wrong, update the dataset's verified date, and the page's stamp reflects the change.

No invented authors

Content is published under DutyMate Editorial and the publisher Inventum. We do not create fictional authors, photos, or credentials. Advertising on the site never influences a rate, a calculation, or what we publish.