The threshold is $75,000 in gross turnover over any 12-month period — not profit, and not the financial year specifically. Enter your numbers below to see where you stand and whether the 21-day registration clock has started.
Your last 12 months
Total gross business income, before GST, over the past 12 months — not your financial year, any rolling 12-month window.
These are input-taxed and don't count toward GST turnover.
This month, annualised
If business has picked up recently, the ATO also wants you to register if your projected turnover will hit the threshold — even if your trailing 12 months hasn't yet.
We'll multiply this by 12 as a projection — a rough guide, not the only test.
A couple of exceptions
We'll tell you exactly where you stand once you do.
Tools like QuickBooks Self-Employed or Hnry handle GST-inclusive invoicing and BAS lodgement automatically, so you're not reconstructing quarterly figures from scratch.
See a tool that automates this →