GST Calculator
Australian Goods & Services Tax — 10%
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Price excluding GST—
GST (10%)—
Price including GST—
How GST Works in Australia
Goods and Services Tax (GST) is a flat 10% tax on most goods, services and other items sold or consumed in Australia. To add GST, multiply the price by 1.1. To find the GST inside a total, divide the total by 11. The GST-exclusive price is the total minus that amount.
- Add GST: $100 + 10% = $110 ($10 GST)
- Remove GST: $110 ÷ 11 = $10 GST, leaving $100 ex-GST
Businesses registered for GST charge it on sales and claim back the GST they pay on purchases (input tax credits).
Frequently Asked Questions
How do I calculate GST in Australia?
Add GST by multiplying the price by 1.1. To find GST already included in a total, divide the total by 11. GST in Australia is 10%.
How do I remove GST from a total?
Divide the GST-inclusive total by 11 to get the GST amount, then subtract it. For example $110 ÷ 11 = $10 GST, leaving $100.
What is the GST rate in Australia?
The GST rate is a flat 10% on most goods and services.