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GST amount (10%)
GST is calculated at Australia's flat 10% rate. This is an estimate for straightforward amounts, it doesn't account for mixed supplies, GST-free items, or exemptions that may apply to your business. It is not tax advice.
Talk to an SBX Business AdvisorA GST calculation tells you the amount, but your actual GST position depends on how your business operates, what you sell, and what you purchase.
Make sure you factor GST into your pricing correctly, so you know what you're actually earning from each sale.
Understanding the GST included in eligible business purchases can help you keep your records accurate and claim the right GST credits.
Your GST obligations don't stop at adding 10% to your invoices. Understanding what you need to collect, claim and report can help you avoid surprises at BAS time.
GST registration requirements depend on your business circumstances and turnover. If you're approaching the threshold or unsure what applies, it's worth getting advice before deciding.
The calculator gives you the number. SBX helps you understand what it means for your business.
This GST calculator applies Australia's standard 10% rate correctly and stays aligned with current ATO guidelines, so your figures hold up.
Add GST to a GST-exclusive amount, or pull the GST out of a GST-inclusive total, this calculator handles both directions, so you're not doing the maths in reverse yourself.
GST is a federal tax, so whether you're pricing a sale in NSW, WA, or anywhere else in Australia, the calculation works the same way, one calculator, no state-by-state guesswork.
Use it to price a product, check a supplier invoice, or sense-check a total before it goes through your books, it's built for the moments GST actually comes up in a business.
GST in Australia is a flat 10% tax added to most goods and services. The calculation depends on which direction you're working in:
Multiply the GST-exclusive amount by 1.1 to get the total price including GST.
Divide the total by 11 to find the GST component.
Divide the GST-inclusive total by 1.1.
That's exactly what our GST calculator does in the background, enter the amount and the direction, and it works out the rest.