GST/HST Calculator for Canada by Province | HelloBooks Free GST/HST calculator for every Canadian province and territory. Add sales tax to a price or extract it from a tax-inclusive amount, with each tax line shown. No signup.
Pick a province or territory, enter an amount, and see the GST, HST or PST lines and the total. Everything is calculated in your browser, with no signup.
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| Amount before tax | C$100.00 |
| HST (federal + Ontario provincial portion, combined) at 13% | C$13.00 |
| Total tax | C$13.00 |
| Total including tax | C$113.00 |
More on Ontario: Ontario sales tax guide. Rates as verified in May 2026; re-verify before filing.
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HelloBooks prepares your GST/HST figures for you to file. See free accounting software Canada.
In add mode, each tax is calculated on the amount before tax and added on top. In extract mode, the amount before tax is the tax-inclusive amount divided by one plus the combined rate, and each tax line is worked out from that.
In provinces that charge GST plus a provincial sales tax, each tax is calculated on the amount before tax. Quebec QST is not calculated here; only the 5% GST line is shown for Quebec.
Rates as verified in May 2026; re-verify before filing.
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