GST Calculator
Calculate GST inclusive and exclusive amounts with different tax rates
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Result
Price excluding GST:
$0.00
GST amount:
$0.00
Price including GST:
$0.00
GST rate used:
10%
Settings
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About GST Calculator
The GST (Goods and Services Tax) Calculator is a free online tool that helps you calculate GST-inclusive and GST-exclusive prices. Whether you need to add GST to a price, remove GST from a price, or just calculate the GST amount, this calculator makes it easy.
How to Use the GST Calculator
- Select the calculation type (add GST, remove GST, or calculate GST amount only)
- Choose the GST rate from the dropdown or select "Custom Rate" to enter your own
- Enter the price value
- Click "Calculate" to see the results
GST Calculation Formulas
- Add GST to price: Price including GST = Price excluding GST × (1 + GST rate)
- Remove GST from price: Price excluding GST = Price including GST ÷ (1 + GST rate)
- GST amount: GST amount = Price excluding GST × GST rate
Common GST Rates Around the World
- Australia: 10%
- New Zealand: 15%
- Singapore: 7% (increasing to 8% in 2023)
- Canada: 5% (Federal GST)
- India: 5%, 12%, 18%, or 28% depending on the goods or services
This calculator is designed for general guidance only. For specific tax advice, please consult with a qualified tax professional.
Frequently Asked Questions
What is GST?
GST (Goods and Services Tax) is a value-added tax levied on most goods and services sold for domestic consumption. It is charged at each stage of the supply chain where value is added and is ultimately paid by the end consumer.
How is GST calculated?
GST is calculated as a percentage of the price of goods or services. For example, if the GST rate is 10% and the price excluding GST is $100, the GST amount would be $10, making the total price including GST $110.
What's the difference between GST-inclusive and GST-exclusive prices?
A GST-exclusive price is the price before GST is added. A GST-inclusive price is the total price including GST. For businesses, it's important to clearly indicate whether quoted prices include or exclude GST.
Why do different countries have different GST rates?
GST rates vary by country based on government policy, economic conditions, and public service funding needs. Some countries also have different rates for different categories of goods and services.
Can I use this calculator for business purposes?
This calculator is designed for general guidance. While it can be helpful for quick calculations, businesses should use accounting software or consult with tax professionals for official financial records and tax reporting.
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