Canadian sales tax is federal GST plus a provincial layer, and which combination applies depends entirely on the province.
Who this is for: Charging the right combination for the province you ship to.
The amount, and both rates that apply
The amount
Net amount (for Add) or tax-inclusive amount (for Remove), in your local currency.
Add treats the amount as net; Remove treats it as tax-inclusive and extracts the taxes.
Federal and provincial rates
%
Federal GST is 5%. In an HST province enter the whole HST here — 13% Ontario, 14% Nova Scotia (since 1 April 2025), 15% New Brunswick, Newfoundland and Labrador and PEI — and set the provincial rate to 0.
%
PST is 7% in British Columbia and Manitoba, 6% in Saskatchewan, and Quebec’s QST is 9.975%. Use 0 in Alberta, the territories and HST provinces.
Total Sales Tax
12.00
GST plus PST (or the HST), in your local currency.
Alberta and the territories charge federal GST only. British Columbia, Saskatchewan, Manitoba and Quebec charge GST plus a separate provincial tax. The Atlantic provinces and Ontario charge a single harmonised HST that combines both.
Canada: GST (federal) + PST (provincial), or a combined HST in HST provinces
This calculator takes both rates so it covers all three cases: enter a provincial rate of zero for a GST-only province, or the full harmonised rate as the federal figure for an HST province.
Most provinces apply both to the base, and Quebec once did not
In most PST provinces, both taxes apply to the pre-tax price rather than PST applying to a GST-inclusive amount. This calculator follows that convention, so the two rates are simply added to the base.
Quebec historically applied QST to the GST-inclusive amount, which produced a slightly higher effective rate. That practice ended, but it is the reason the question is worth asking rather than assuming.
Selling across provinces means charging the buyer’s rate
Place-of-supply rules generally mean the rate applied is that of the province where the goods or services are delivered or consumed, not where the business is located. A seller in Alberta shipping to Ontario charges Ontario HST.
For an online business selling nationally this means maintaining rates for every province rather than one rate. Getting it wrong understates or overstates tax on every affected order.
Input tax credits apply to GST and HST, but not always to PST
Registered businesses recover GST and HST paid on business inputs through input tax credits, so those taxes are not a cost in the middle of a supply chain. Provincial sales tax in the non-harmonised provinces is often not recoverable, which makes it a genuine cost of doing business there.
That asymmetry matters when comparing the cost of operating across provinces, and it is a reason the headline combined rate understates the real difference between an HST province and a PST one.
Frequently Asked Questions
How is sales tax calculated in Canada?
Apply the federal GST and any provincial PST to the net price, then add them to the price. In HST provinces a single combined rate replaces separate GST and PST. To remove tax from a total, divide by one plus the combined rate.
What is the difference between GST, PST and HST?
GST is the federal Goods and Services Tax, PST is a separate provincial sales tax, and HST is a harmonised tax that combines both into one rate. Provinces use different combinations, so the right setup depends on where the sale happens.
How do I use this for an HST province?
Enter the full HST rate in the GST field and set the PST field to 0. The total tax then equals the HST, and the GST portion output shows that combined amount. Confirm the current HST rate for your province.
How do I remove Canadian sales tax from a total?
Switch to Remove mode and the calculator divides the tax-inclusive total by one plus the combined rate to find the net, then splits the tax into GST and PST. This is more accurate than subtracting each rate from the gross.
Is the result in Canadian dollars?
No. The calculator is currency-neutral, so figures are in whatever local currency you enter. The arithmetic is identical regardless of currency.
Sources & References
Figures on this page are checked against primary, authoritative sources. Links open in a new tab.
The 5% GST is the federal rate and the 7% PST default is the rate in British Columbia and Manitoba (checked 2026-09-25); other provinces differ.
GST and PST are each applied to the net amount (not compounded), which matches most but not all provincial rules.
For HST provinces, the user is expected to enter the full HST in the GST field and leave PST at zero.
Verify the current GST, PST, and HST rates for your province with the CRA for your date.
Where it stops
Rates vary by province (GST-only, GST+PST, HST, or Quebec’s QST), and the tool does not auto-select them.
Quebec applies QST on the GST-exclusive amount under its own rules, which may differ from this simple model.
It does not handle input tax credits, point-of-sale rebates, or tax-exempt and zero-rated supplies.
This is not tax advice; sales tax rates and rules vary by province and date.
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Tax rules vary by country, state, tax year, filing status, income type, deductions, and exemptions. This calculator is educational and uses the values you enter. Always verify final tax treatment with official sources or a qualified tax professional.
Published the calculator with its formula, worked example, assumptions, limitations and a bespoke guide, and added an automated formula test suite covering it.
Tested federal GST with a provincial rate applied to the same pre-tax base, covering GST-only, GST plus PST and harmonised cases.
Tested that a zero provincial rate reduces the result to federal GST alone, and that both rates apply to the base rather than compounding.
Named every province's rate in the field help and answers, including Nova Scotia's HST at 14% since 1 April 2025, instead of calling the 5% GST and 7% PST placeholders.
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