Australia GST Calculator
Add or remove 10% GST at Australia's standard rate, with the net, GST and gross in AUD instantly.
This free Australia GST calculator adds or removes GST at Australia's standard rate of 10%. Enter an amount in AUD, choose Add or Remove, and it shows the net amount, the GST and the gross total instantly. No sign-up, and nothing leaves your browser.
Adding 10% GST (Australia) to your net amount.
How to add 10% GST
Multiply the net amount by 0.1 to get the GST, then add it on. For example, 1,000.00 AUD net + 100.00 AUD GST = 1,100.00 AUD gross.
How to remove GST from a price
Divide the GST-inclusive amount by 1.1. For example, 1,000.00 AUD including GST ÷ 1.1 = 909.09 AUD net, so the GST is 90.91 AUD. Subtracting 10% of the gross instead would give 900.00 AUD, which understates the net amount. It's the most common GST mistake.
10% GST on common amounts
| Net (AUD) | GST (10%) | Gross |
|---|---|---|
| 100.00 AUD | 10.00 AUD | 110.00 AUD |
| 500.00 AUD | 50.00 AUD | 550.00 AUD |
| 1,000.00 AUD | 100.00 AUD | 1,100.00 AUD |
| 5,000.00 AUD | 500.00 AUD | 5,500.00 AUD |
| 10,000.00 AUD | 1,000.00 AUD | 11,000.00 AUD |
About GST in Australia
GST (goods and services tax) is a consumption tax charged on most goods and services. It works the same way as VAT: businesses charge it on their sales and generally claim credits for the GST they pay on purchases.
The standard rate in Australia is 10%, charged in AUD. Reduced or zero rates may apply to some goods and services. Use the calculator's custom rate for those, and confirm current rates with the tax authority before you file.
Frequently asked questions
What is the GST rate in Australia?
The standard GST rate in Australia is 10%. Some goods and services may be taxed at a reduced or zero rate, so check the rate that applies to what you sell.
How do I add 10% GST to a price?
Multiply the net price by 0.1 to get the GST, then add it on. For example, 1,000.00 AUD net plus 100.00 AUD GST is 1,100.00 AUD gross.
How do I remove GST from a price in Australia?
Divide the GST-inclusive price by 1.1. For example, 1,000.00 AUD including GST is 909.09 AUD net and 90.91 AUD GST. Don't just subtract 10% of the gross; that gives 900.00 AUD, which is wrong.
Is this Australia GST calculator free?
Yes. It's completely free, needs no sign-up, and runs entirely in your browser.
Asia-Pacific: other VAT & GST calculators
- India GST 18%
- Pakistan Sales tax 18%
- New Zealand GST 15%
- Singapore GST 9%
- Japan Consumption tax 10%
- China VAT 13%
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