Method
For an exclusive amount, tax is added as a percentage. For an inclusive amount, the tax portion is extracted from the total.
Finance / browser tool
GST/VAT Calculator
Use any tax percentage without assuming a country-specific rate.
Your inputs stay on your device
Add or remove tax
live resultUSD
%
Original amount
Tax amount
Total amount
Use your own tax rate. This calculator is generic and does not provide country-specific tax guidance. Currency selection labels amounts only and does not use exchange rates.
Useful context
How it works
Use the calculator first, then scan the details below when you want more context about the inputs, result, or assumptions.
How to use it
Choose inclusive or exclusive mode, enter the amount and tax rate, then compare the net, tax, and gross values.
Understand the result
The net amount excludes GST/VAT, the tax amount is the calculated portion, and the gross amount includes it.
Example
At 10% GST, $100 exclusive becomes $110 inclusive; $110 inclusive contains $10 GST.
Notes
Use the rate that applies to your situation. This tool does not determine local tax rules or exemptions.
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