Free GST and HST Calculator for Canada
Pick a province and enter an amount. The tool shows GST, HST, PST, RST, or QST as it applies, plus the total. Made for Canadian contractors and small businesses.
This calculator is for general information only. It isn't tax, legal, or accounting advice. Rates and rules change. Confirm current figures with the source below or your accountant before using these numbers for filing, billing, or contracts.
Rates current as of May 3, 2026.
Authoritative sources
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