How do I calculate GST or HST in Canada?
Multiply the price by the rate for your province: 5% GST in provinces without HST, 13% HST in Ontario, 14% in Nova Scotia and 15% in New Brunswick, Newfoundland and Labrador and Prince Edward Island. To remove tax from a total, divide by (1 + rate ÷ 100). Some provinces also charge a separate provincial sales tax on top of GST.
Canada GST/HST Calculator at a glance
| Inputs | Amount, province rate, add or remove |
|---|---|
| Output | Price before tax, GST/HST, total |
| Processing | In your browser; your files are not uploaded |
| Price | Free |
| Works on | Chrome, Edge, Safari and Firefox on Windows, Mac, Android and iPhone |
How to use Canada GST/HST Calculator
- Choose Add GST/HST or Remove GST/HST.
- Enter the amount in Canadian dollars.
- Tap the rate for your province.
- Read the tax and the total.
GST and HST rates
These rates were checked on the Government of Canada's GST/HST page in September 2026:
- 5% GST: Alberta, British Columbia, Manitoba, Quebec, Saskatchewan and the territories. Some of these provinces also charge their own provincial sales tax (PST or QST) separately.
- 13% HST: Ontario.
- 14% HST: Nova Scotia, down from 15% on 1 April 2025.
- 15% HST: New Brunswick, Newfoundland and Labrador, and Prince Edward Island.
Adding and removing tax
To add HST: 100 in Ontario becomes 100 × 1.13 = 113. To remove it from a total: 113 ÷ 1.13 = 100, so the HST was 13. Taking 13% off the total would be wrong.
Provincial sales tax
In provinces that charge a separate PST or QST, add that rate to the 5% GST to see the total tax, or calculate each tax on its own, depending on how your receipt shows it. Rules on which items are taxable differ by province.