GST/HST calculator
Work out GST, HST, PST or QST for every province and territory, added on or taken out, with each tax shown separately. Rates from 1 April 2025, per the CRA.
Calculated on your device, rounded to the nearest cent, half up.
Rates by province and territory
From the CRA's GST/HST calculator page (rates on or after 1 April 2025, when Nova Scotia's HST fell to 14%):
| Province or territory | Taxes | Total | $100 plus tax |
|---|---|---|---|
| Ontario | HST 13% | 13% | $113.00 |
| Alberta | GST 5% | 5% | $105.00 |
| British Columbia | GST 5% + PST 7% | 12% | $112.00 |
| Quebec | GST 5% + QST 9.975% | 14.975% | $114.98 |
| Manitoba | GST 5% + RST 7% | 12% | $112.00 |
| Saskatchewan | GST 5% + PST 6% | 11% | $111.00 |
| Nova Scotia | HST 14% | 14% | $114.00 |
| New Brunswick | HST 15% | 15% | $115.00 |
| Newfoundland and Labrador | HST 15% | 15% | $115.00 |
| Prince Edward Island | HST 15% | 15% | $115.00 |
| Northwest Territories | GST 5% | 5% | $105.00 |
| Nunavut | GST 5% | 5% | $105.00 |
| Yukon | GST 5% | 5% | $105.00 |
Which province's rate applies
The rate depends on the place of supply. For goods, that's usually where they're delivered; for services, generally where they're used. The CRA's examples: a Winnipeg store delivering a laptop to Nova Scotia charges 14% HST, but if the customer collects it in Winnipeg, the store charges 5% GST plus Manitoba's 7% PST.
How to add the tax
Multiply the price before tax by each rate and add them on. Example (Quebec): $100 before tax: GST $100 × 5% = $5.00, QST $100 × 9.975% = $9.975, rounded to $9.98. Total $114.98.
How to take the tax out of a tax-included price
Divide by 1 plus the total rate. Example (Ontario): $565 including 13% HST is $565 ÷ 1.13 = $500 before tax, so the HST is $65.
Common mistake: taking 13% of the tax-included price. 13% of $565 is $73.45, which overstates the HST by $8.45.
Zero-rated and exempt supplies
Zero-rated supplies, such as basic groceries, are taxed at 0% across Canada. Exempt supplies have no GST/HST at all. Show each supply's status on an invoice that mixes them.
Questions
Which rate do I charge?
The rate depends on the place of supply, usually where the goods are delivered or the service is used, not where your business is. The CRA's example: a Vancouver store delivering to Toronto charges Ontario's 13% HST.
How is PST or QST worked out with GST?
In British Columbia, Manitoba, Saskatchewan and Quebec, a provincial tax is charged alongside the 5% GST. The CRA says to work out the GST on the price excluding PST. This calculator charges each tax on the same price before tax; check your province's rules for anything it treats differently.
How do I take GST/HST off a price that includes it?
Divide by 1 plus the total rate. In Ontario, $113 including 13% HST is $113 ÷ 1.13 = $100 before tax, so the HST is $13.
Do I register for PST or QST separately?
Yes. GST/HST registration is with the CRA; provincial sales taxes are registered with the province (Revenu Québec for QST). This calculator works out the amounts; whether you must charge each tax depends on your registrations and what you sell.
What must a GST/HST invoice show?
The CRA's requirements grow with the sale: from $100, your GST/HST registration number, the GST/HST charged (or that it's included) and each supply's status; from $500, also the buyer's name, a description and the terms of payment.
More free tax calculators
UK VAT calculator
Add or remove VAT at 20%, 5% or 0%.
OpenNew Zealand GST calculator
Add or remove 15% GST.
OpenAustralian GST calculator
Add or remove 10% GST.
OpenSources
- Canada Revenue Agency: GST/HST calculator (and rates)
- Canada Revenue Agency: Charge and collect the tax, which rate to charge
- Canada Revenue Agency: General information for GST/HST registrants (RC4022)
Last reviewed 28 October 2026. General information, not tax or legal advice. If you're unsure how a rule applies to your business, ask the CRA, your province's tax office or a qualified adviser.
Faster invoices. Easier payments.
For businesses and freelancers who would rather be working than chasing invoices.
14 days of Pro included. Then $19 AUD/month or stay free forever. No card required.