Free GST/HST Calculator
Calculate GST (5%), HST (13–15%), and QST (9.975%) for any Canadian province or territory. Add tax to a pre-tax amount or extract tax from a tax-inclusive total.
How to use this calculator
Enter the amount in CAD, select your province or territory, and choose whether you want to add tax to a pre-tax amount or extract tax from a tax-inclusive total. The calculator shows the GST, HST, and QST components separately, so you can see exactly how much tax applies.
For Quebec, the calculator applies GST (5%) and QST (9.975%) separately, giving a combined rate of 14.975%. For HST provinces (Ontario, New Brunswick, Newfoundland and Labrador, Nova Scotia, PEI), the HST replaces the GST entirely.
GST/HST/QST rates by province (2026)
| Province | GST | HST | QST | Total |
|---|---|---|---|---|
| Alberta | 5% | — | — | 5.000% |
| British Columbia | 5% | — | — | 5.000% |
| Manitoba | 5% | — | — | 5.000% |
| New Brunswick | — | 15% | — | 15.000% |
| Newfoundland and Labrador | — | 15% | — | 15.000% |
| Nova Scotia | — | 15% | — | 15.000% |
| Northwest Territories | 5% | — | — | 5.000% |
| Nunavut | 5% | — | — | 5.000% |
| Ontario | — | 13% | — | 13.000% |
| Prince Edward Island | — | 14% | — | 14.000% |
| Quebec | 5% | — | 9.975% | 14.975% |
| Saskatchewan | 5% | — | — | 5.000% |
| Yukon | 5% | — | — | 5.000% |
Frequently asked questions
What is the GST rate in Canada?
The GST (Goods and Services Tax) is 5% across all provinces and territories in Canada.
What is the HST rate by province?
HST (Harmonized Sales Tax) rates: Ontario 13%, New Brunswick 15%, Newfoundland and Labrador 15%, Nova Scotia 15%, Prince Edward Island 14%. Alberta, BC, Manitoba, Quebec, Saskatchewan, and the territories use GST only (5%).
What is the QST rate in Quebec?
The QST (Quebec Sales Tax / TVQ) is 9.975%. Combined with the 5% GST, the total sales tax in Quebec is 14.975%.
How do I calculate GST/HST?
To calculate GST/HST, multiply the pre-tax amount by the applicable rate. For example, $100 × 5% GST = $5 tax, total $105. In Ontario, $100 × 13% HST = $13 tax, total $113. In Quebec, $100 × 5% GST = $5, plus $100 × 9.975% QST = $9.98, total $114.98.
Does Hengo automatically calculate GST/HST?
Yes. Hengo automatically calculates GST, HST, and QST based on the province of supply on every invoice and expense. You enter your registration number once, and Hengo tracks tax collected and paid for each filing period. Try it free for 14 days.
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