GST Calculator Australia
Add 10% GST to a price, or pull the GST back out of a total you have already been charged. Pop in an amount and we'll split it into net, GST and gross instantly.
- Net (excl. GST)$0
- GST (10%)$0
- Gross (incl. GST)$0
Enter an amount to see the breakdown.
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Sort my BAS & GST →General information only, current for the 2025-26 financial year. Australian GST is 10% on most goods and services, but some supplies are GST-free or input-taxed and special rules apply to property, imports and the margin scheme. This tool does not decide whether GST applies, and it is not personal tax advice. For your actual BAS position, talk to us.
A Few Things This Calculator Assumes
How do you remove GST from a total?
Because GST is 10%, a GST-inclusive total is 110% of the net price, so the GST component is the total divided by 11. For example, $110 includes $10 of GST and $100 net. We do exactly that here, then round to the nearest cent. Dividing by 11 (not taking 10% of the total) is the part people most often get wrong.
Do I have to register for GST?
Generally you must register once your business turnover hits $75,000 a year ($150,000 for non-profits), and from the first dollar if you drive ride-share or taxi. Once registered, you add GST to your sales and can claim GST credits on your purchases. We can check whether you have crossed the threshold and handle the registration.
Is everything subject to 10% GST?
No. Many basic foods, most health and medical services, and some education are GST-free, while things like residential rent and bank fees are input-taxed. This calculator assumes the standard 10% rate, so use it for ordinary taxable sales and ask us when a supply might be GST-free or input-taxed.
What is the difference between net, GST and gross?
Net is the price excluding GST (what you keep before tax). GST is the 10% on top that you collect for the ATO. Gross is the total your customer pays, net plus GST. On your BAS you report the GST you collected on sales, less the GST credits on your expenses, and pay the difference.
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