What is the difference between GST, HST and PST?

GST is the 5% federal Goods and Services Tax. HST is a single Harmonized Sales Tax that combines GST with a provincial portion (for example 13% in Ontario). PST is a separate Provincial Sales Tax charged on top of GST in provinces like British Columbia and Saskatchewan; Quebec's equivalent is QST.

Which sales tax rate applies in my province?

Ontario is 13% HST; New Brunswick, Newfoundland, Nova Scotia and PEI are 15% HST; BC and Manitoba are 12% (5% GST + 7% PST); Saskatchewan is 11% (5% + 6%); Quebec is 14.975% (5% GST + 9.975% QST); Alberta and the territories are 5% GST only.

How do I reverse-calculate the pre-tax amount from a total?

Divide the tax-included total by one plus the combined rate. For example, with Ontario's 13% HST, divide the total by 1.13 to get the pre-tax amount, then subtract it from the total to find the tax.

Canada Sales Tax Calculator (GST/HST/PST) 2026

This tool adds or removes Canadian sales tax (GST, PST or HST) for any province, showing the tax amount and the total or pre-tax price. Updated June 2026.

GST / HST / PST Sales Tax (2026)

How It Works

Enter a pre-tax amount and pick your province. The calculator applies the 2026 combined sales tax rate for that province (HST, GST + PST, or GST + QST) and shows the tax amount, the total including tax, and the rate used — including the GST/PST split where applicable.

Reverse calculation: to work backwards from a tax-included total, divide the total by (1 + the combined rate). For Ontario's 13% HST, divide by 1.13 to find the pre-tax amount, then subtract it from the total to get the tax.

FAQ

What is the difference between GST, HST and PST? GST is the 5% federal tax. HST combines GST with a provincial portion into one rate. PST is a separate provincial tax on top of GST (QST in Quebec).
Which rate applies in my province? ON 13% HST; NB/NL/NS/PEI 15% HST; BC/MB 12% (5%+7%); SK 11% (5%+6%); QC 14.975% (5%+9.975%); AB & territories 5% GST only.
How do I reverse-calculate the pre-tax amount? Divide the tax-included total by one plus the combined rate (e.g. ÷1.13 in Ontario), then subtract to find the tax.

More Canada Tools

Visit the Canada calculators hub or try the Canada Income Tax Calculator 2026.