Free Tool
GST/HST Calculator (Canada)
Add or reverse GST, HST, PST and QST for any province or territory. Free, instant, and always up to date — built for Canadian small businesses.
Calculation
Amount is before tax — add tax on top.
$
Total (with tax)
$113.00
- Amount before tax
- $100.00
- HST (13%)
- $13.00
Rates are provided for general guidance and reviewed regularly, but can change — always confirm current rates with the CRA before filing. Not tax advice.
GST/HST rates by province (2026)
| Province / Territory | Type | Total rate |
|---|---|---|
| Ontario | HST | 13% |
| British Columbia | GST + PST | 12% |
| Alberta | GST | 5% |
| Quebec | GST + QST | 14.975% |
| Manitoba | GST + PST | 12% |
| Saskatchewan | GST + PST | 11% |
| Nova Scotia | HST | 14% |
| New Brunswick | HST | 15% |
| Newfoundland and Labrador | HST | 15% |
| Prince Edward Island | HST | 15% |
| Northwest Territories | GST | 5% |
| Yukon | GST | 5% |
| Nunavut | GST | 5% |
Do you need to charge GST/HST?
Made more than $30,000? You likely need to register.
Once your business earns more than $30,000 in gross revenue over four consecutive calendar quarters, you’re no longer a “small supplier” and must register for a GST/HST number and start collecting tax. We handle business registration and your CRA GST/HST account setup for Ontario businesses — so you get it right the first time.
Register your business →GST/HST — common questions
- How much is HST in Ontario?
- HST in Ontario is 13% — a 5% federal (GST) portion plus an 8% provincial portion, combined into a single Harmonized Sales Tax.
- How do I calculate reverse HST from a total?
- To back HST out of a tax-inclusive total, divide the total by 1 plus the rate. In Ontario, base = total ÷ 1.13, and the HST is the difference. Switch this tool to “Remove tax” and it does it for you.
- What’s the difference between GST, HST and PST?
- GST is the 5% federal tax that applies across Canada. HST provinces (like Ontario) combine the federal and provincial portions into one rate. Other provinces charge GST plus a separate provincial sales tax (PST), or QST in Quebec.
- Do I have to charge GST/HST on my sales?
- Once your business makes more than $30,000 in gross revenue over four consecutive calendar quarters, you must register for a GST/HST number and charge tax. Below that threshold you’re a “small supplier” and registration is optional.
Ready to launch your business?
Talk to our team and take the first step today — no obligation.