Canadian · Sales Tax
GST/HST calculator.
Calculate Canadian sales tax for every province and territory. Add tax to a pre-tax amount or back it out of a total, with a full GST/HST/PST/QST breakdown.
A Canadian GST, HST, PST and QST calculator. Choose a province and enter an amount, and it returns the tax and the total: in either direction. It can add tax to a pre-tax price, or reverse it out of a total that already includes tax.
Rates differ by province because some provinces harmonised their sales tax with the federal GST and some did not. The calculator applies the correct combined rate for the province you select.
Inputs
Result
Pick a province and enter an amount.
Provincial sales tax (2024/2025)
- HST provinces: ON 13% · NB, NL, NS, PE 15%
- GST + PST/QST provinces: BC 5+7% · MB 5+7% · QC 5+9.975% (QST) · SK 5+6%
- GST only: AB, NT, NU, YT: 5%
QST in Quebec is calculated on the pre-GST amount, matching the current Revenu Québec rule. Rates are as published by the CRA and Revenu Québec.
This page does the arithmetic once you know which province’s rate applies. If you are invoicing a customer in a different province and are not sure whose tax belongs on the invoice, that is a separate question with its own rules: see which sales tax to charge for the CRA place-of-supply tests for goods, services, real property and intangibles.
TNAADO Inc. · Toronto
The customer’s province decides which rate applies
Five provinces have harmonised their sales tax with the federal GST into a single HST. The rest charge 5% GST, with British Columbia, Saskatchewan, Manitoba and Quebec adding their own provincial tax separately. Which of those applies to a given sale is settled by the place-of-supply rules, which look at where the customer receives the supply, so the rate follows the customer rather than the seller.
The mistake people make. Backing tax out of a total by multiplying by the rate. Removing 13% from a $113 total is not $113 x 13%; it is $113 divided by 1.13, and the difference compounds across a year of bookkeeping. The other frequent error is charging tax before registering: until you cross the small supplier threshold you generally must not charge GST/HST at all, and once you cross it you must.
Frequently asked questions
How do I calculate HST from a total that already includes tax?
Divide the total by one plus the tax rate. In Ontario at 13%, divide the total by 1.13 to get the pre-tax amount, then subtract that from the total to get the HST.
A $113.00 Ontario total is $100.00 plus $13.00 HST. The common mistake is taking 13% of the total, which gives $14.69 and overstates the tax: the percentage applies to the pre-tax amount, not the tax-included one.
Which provinces have HST and which have GST plus PST?
HST provinces charge one combined tax: Ontario at 13%, and New Brunswick, Newfoundland and Labrador, Nova Scotia and Prince Edward Island at 15%.
GST plus a provincial tax: British Columbia (5% + 7% PST), Manitoba (5% + 7% PST), Saskatchewan (5% + 6% PST) and Quebec (5% + 9.975% QST). GST only, at 5%: Alberta, the Northwest Territories, Nunavut and Yukon.
Is there sales tax in Alberta?
Only the federal GST at 5%. Alberta has no provincial sales tax, which also applies to the three territories. It is the lowest combined sales tax rate in the country.
Do I charge GST or HST based on where my customer is?
You charge based on the place of supply, which for most goods and services is where the customer receives them: not where your business is located. An Alberta business selling to an Ontario customer generally charges 13% HST, not 5% GST.
The place-of-supply rules vary by what is being sold, and are more involved for digital services and for goods shipped across provincial lines. Confirm the treatment for your specific supply with the Canada Revenue Agency before setting your invoicing.
Disclaimer
Estimates only: verify current rates with the CRA, Revenu Québec, or your provincial tax authority before invoicing.