QuickCalcs exists because of a simple, expensive problem: most Australian calculator pages run on last year's numbers. Tax brackets change, HECS gets restructured, states rewrite stamp duty concessions in every budget — and the top search results often don't notice for months. A calculator with stale rates isn't a convenience, it's a source of wrong decisions.
So this site makes one promise and organises everything around it: every calculator states which rate schedule it uses, what it does not model, and the date we verified it against the primary source — the ATO, or the relevant state revenue office. When a budget or indexation changes the rules, we update the calculator and re-date the badge. If a page's verification date looks old, you're entitled to be suspicious — that's the whole point of showing it.
The site is independently run, free to use, and requires no sign-up. Nothing you type into a calculator is transmitted or stored — all calculations run in your browser.
One important boundary: these are estimation tools, not advice. They exist to help you understand how the rules work and roughly where you stand, so that conversations with your accountant, broker or adviser start from an informed place. For decisions that matter, confirm with the official source linked on each calculator, or with a licensed professional.
Spotted an error, or a rate that's changed before we caught it? Tell us — corrections are the fastest way to keep the promise above.