GST/HST Calculator
- Net (before tax)
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- Tax
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- Gross (with tax)
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Quebec adds 9.975% QST on the GST-exclusive base (use the QST tool).
How to use GST/HST Calculator
- Enter an amount and select your province (GST/HST rates vary by Canadian province).
- Choose whether the amount is tax-inclusive or tax-exclusive.
- Get the tax amount and total instantly.
About this tool
GST/HST Calculator is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
Category: Tax & Government — Canada. Browse more Tax & Government — Canada tools.