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Free GST Calculator
Add or remove GST instantly with our easy-to-use calculator
Add GST
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GST Amount
$50.00
Total Amount
$1,050.00
GST Amount = 1000 × (5 ÷ 100) = $50.00
How GST Works
GST (Goods and Services Tax) is a consumption tax applied on the supply of goods and services.
Adding GST
To add GST to a net amount (price excluding GST):
- GST Amount = Net Amount × (GST Rate ÷ 100)
- Total Amount = Net Amount + GST Amount
Removing GST
To remove GST from a total amount (price including GST):
- Net Amount = Total Amount ÷ (1 + (GST Rate ÷ 100))
- GST Amount = Total Amount - Net Amount