Tax calculators

GST calculator Canada: calculate GST/HST, PST/QST, and total price

GST calculator Canada
Estimate GST/HST and PST/QST by province with tax-included reverse calculation.
Advanced options
Results
Pre-tax amount100,00 CAD
HST13,00 CAD
Total tax13,00 CAD
Total price113,00 CAD
Effective rate13%
Rounded to 2 decimals. Receipts may differ slightly due to line-by-line rounding.

Examples

Ontario (HST 13%)
Amount $100.00 → HST $13.00, total $113.00.
Quebec tax-included
Total $114.98 → base $100.00, GST $5.00, QST $9.98.
This calculator estimates sales tax in Canada for a purchase in any province/territory: GST (5%), HST (where applicable), and PST/QST (where applicable). You only need the province/territory, amount, and whether the price is before tax or tax-included. GST is 5% federally. HST applies in participating provinces (Ontario 13%, New Brunswick 15%, Newfoundland & Labrador 15%, Prince Edward Island 15%, Nova Scotia 14%). Some provinces use GST plus a separate PST/QST (e.g., BC 7% PST, Saskatchewan 6% PST, Manitoba 7% RST, Quebec 9.975% QST). Both GST and PST/QST are calculated on the same pre-tax base (and QST is calculated on the selling price excluding GST). Verified January 28, 2026. Informational estimate only; receipts can differ slightly due to rounding.

FAQs

Is GST always 5% in Canada?

Yes, GST is 5% federally. Total tax can be higher due to HST or provincial taxes.

What’s the difference between GST and HST?

HST combines GST with a provincial component in participating provinces (e.g., Ontario and Atlantic provinces).

Do I pay PST everywhere in Canada?

No. Some provinces use HST, some use separate PST/RST, and some have GST only.

In BC/Manitoba/Saskatchewan, is GST calculated on top of PST?

Generally, GST is calculated on the price without PST (both use the same pre-tax base).

In Quebec, is QST calculated on the price including GST?

QST is calculated on the selling price excluding GST.

My total is tax-included—how do you reverse the tax?

Divide the total by (1 + total tax rate) to get the base, then compute GST/HST and PST/QST from that base.

What does zero-rated mean?

Zero-rated supplies are taxable at 0%—no GST/HST is charged but they remain taxable supplies.

What does exempt mean?

Exempt supplies are not subject to GST/HST, and businesses generally can’t claim ITCs on related purchases.

Why might my result differ from a receipt by $0.01?

Receipts often round tax per line item; calculators may round after totals.

Which province’s rate should I use for online orders?

Use place-of-supply rules, typically based on the delivery destination.

Note: This calculator provides an estimate. Rates can vary by region and change over time. It is not tax advice.

See more in calculators for Canada.

Sources

More calculators in Canada

Canada income tax calculator
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