Canada tool

GST / HST Calculator

Add tax to a price or pull tax out of a total. Presets for every province and territory.

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PST/QST extras are not fully modeled. Set the combined rate if you know it (for example Quebec often uses GST + QST ≈ 14.975%).

Canadian sales tax in brief

GST is 5% federal. HST combines GST and provincial tax in participating provinces: 13% in Ontario and 15% in New Brunswick, Newfoundland and Labrador, Nova Scotia, and Prince Edward Island. Alberta and the territories charge GST only. BC, Manitoba, Saskatchewan, and Quebec add their own provincial tax on top of GST.

To add tax: total = price × (1 + rate). To remove tax: pre-tax = total ÷ (1 + rate). Rates change. Confirm on the CRA or provincial finance site before you file or invoice.

Common questions

Is food taxable?

Basic groceries are often zero-rated for GST/HST. Restaurant meals usually are taxable. This tool does not classify items.

How do I handle Quebec?

Type 14.975 as the rate for typical GST + QST on a taxable sale, or calculate each tax separately if you invoice that way.