How we check our figures

The tax rates, thresholds, interest rates and prices in Velofy's calculators all come from the organisations that publish them. This page lists those sources, shows when each figure was last checked, and explains what happens when we get something wrong.

Where the figures come from

How we keep them current

• We take each figure from the official source wherever we can, not from a news story. Some government sites block automated tools; when that happens we confirm the figure in two independent sources and record that we did.
• Every figure that changes on a schedule has a recorded "last checked" date and a date for its next check. The table below comes straight from that record.
• We re-check on the day a number changes: Reserve Bank decision days, ABS inflation and wage releases, 1 July each year when tax and super thresholds roll over, and Federal Budget night.
• A Budget announcement is described as proposed until it becomes law, and we say when it does.

Figures we track

Last checked and next scheduled check for the figures behind each calculator.

How the calculators are tested

Every change to the site runs more than 170 automated checks before it goes live. The tax calculators share one set of rates, and the tests confirm the tax worked out at every bracket matches the published rates. Our payslip checker's tax-withheld figures match the ATO's own withholding calculator in every test case we compared, and its schedules are checked against the worked examples in the ATO's tax tables.

When we get something wrong

Email us the page and the figure (details on the contact page). We check it against the official source. If it is wrong, we fix it and update the date on the page, and where a correction changes an answer someone may have relied on, we add a note saying what changed.

What we don't do

• No one can pay to change a calculator's result.
• We don't give personal advice. Our calculators and articles are general information; see About Velofy and our terms of use.

Last updated 19 October 2026