SPSole Proprietorship.ca

Free tool · Taxes

GST/HST Calculator (Canada)

Add or remove GST/HST from any amount using the current federal and provincial rates, and see the tax breakdown by province.

Add or remove GST/HST

How this is estimated: the combined rate for the selected province is applied to the amount before tax (Quebec's QST is calculated on the amount before tax, not on top of GST), and in reverse the tax is extracted by dividing the total by one plus the rate; rates are the published 2025/2026 figures — confirm current rates on canada.ca. Whether you must charge tax, and whether a supply is zero-rated or exempt, depends on your situation.

Source: Canada Revenue Agency — GST/HST rates

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