GST Calculator
Work out the GST (or VAT / sales tax) on a price. You can add tax to a price, or find the original price when the tax is already included in the total.
Please note: Tax rules differ by country and by product. Check the rate that applies to you.
How to use this tool
- Enter the amount.
- Enter the GST rate, for example 18.
- Choose whether to add GST, or whether GST is already included in your amount.
- Click Calculate to see the price before tax, the tax amount and the total.
Your privacy
This tool works inside your browser. What you type is not uploaded, saved or shared.