A Canadian GST/HST calculator helps you quickly determine the sales tax on any purchase or sale in Canada. Each province and territory has different tax rules -- some charge a combined HST, others layer PST or QST on top of the federal 5% GST. This tool calculates the exact tax breakdown by province, showing GST and provincial tax components separately so you can see exactly what you owe or are charging.
Tax Calculation
Calculation Breakdown
How the tax was calculated
Canadian Sales Tax Rates by Province
Click any row to calculate with that province.
| Province / Territory | GST | PST/HST/QST | Combined |
|---|
How to Use This Canadian GST/HST Calculator
Canada has one of the more complex sales tax systems in the world, with different provinces using different combinations of federal and provincial taxes. Some provinces charge a single Harmonized Sales Tax (HST), others layer a Provincial Sales Tax (PST) on top of the federal GST, and Quebec has its own Quebec Sales Tax (QST). This Canadian GST/HST calculator handles all 13 provinces and territories so you can get accurate tax breakdowns instantly.
Step 1: Enter Your Amount
Type the dollar amount you want to calculate tax for. This can be a pre-tax price, a tax-inclusive total, or any amount you want to apply Canadian sales tax to. The calculator works with any value from small retail purchases to large business transactions. Use decimals for precise amounts (e.g., 49.99).
Step 2: Select a Province or Territory
Choose from all 13 Canadian provinces and territories in the dropdown. Each jurisdiction has its current tax rates pre-loaded. The calculator automatically applies the correct GST, HST, PST, or QST rate when you select a province. Ontario defaults on first load since it is the most populous province.
Step 3: Choose Your Calculation Mode
Select one of three modes depending on what you need. Add Tax calculates the total price from a pre-tax amount -- use this when pricing products or services. Remove Tax extracts the pre-tax price from a tax-inclusive total -- use this when you have a receipt total and need the original price. Find Tax Amount shows exactly how much tax is included in a total -- useful for expense reporting and bookkeeping.
Step 4: Review Your Results
After clicking Calculate, you see four key figures: the subtotal (pre-tax amount), the GST amount, the provincial tax amount (PST, HST, or QST), and the total including all taxes. The effective combined rate is shown as a badge, and the calculation breakdown section shows the exact formulas used. For HST provinces, the GST component is shown embedded within the HST for clarity.
Understanding Canadian Sales Tax Types
The federal GST of 5% applies in every province and territory. Five provinces (Ontario, New Brunswick, Newfoundland and Labrador, Nova Scotia, and Prince Edward Island) combine federal and provincial tax into a single HST rate ranging from 13% to 15%. British Columbia, Saskatchewan, and Manitoba charge a separate PST on top of the 5% GST. Quebec charges its own QST of 9.975% alongside the GST. Alberta and the three territories (Northwest Territories, Nunavut, and Yukon) charge only the 5% GST with no provincial tax, making them the lowest-tax jurisdictions in Canada.
FAQ
Is this Canadian GST/HST calculator free?
Yes, this calculator is completely free with no signup, no account, and no limits. All calculations run locally in your browser. You can calculate sales tax for any province, any amount, and switch between add, remove, and find modes as many times as you need at no cost.
Is my financial data private and secure?
Absolutely. All tax calculations happen entirely in your web browser using client-side JavaScript. No amounts or financial data are ever sent to any server or stored anywhere. You can verify this by disconnecting from the internet -- the calculator continues to work perfectly offline.
What is the difference between GST, HST, PST, and QST?
GST (Goods and Services Tax) is the 5% federal tax applied across all of Canada. HST (Harmonized Sales Tax) combines GST and provincial tax into a single rate in some provinces (Ontario 13%, Atlantic provinces 15%). PST (Provincial Sales Tax) is a separate provincial tax in BC, SK, and MB. QST (Quebec Sales Tax) is Quebec's 9.975% provincial tax, applied on top of the 5% GST.
Which provinces only charge 5% GST?
Alberta, the three territories (Northwest Territories, Nunavut, and Yukon) charge only the 5% federal GST with no additional provincial sales tax. This makes them the lowest sales tax jurisdictions in Canada.
How does the reverse tax calculation work?
The reverse (remove tax) calculation extracts the pre-tax price from a tax-inclusive amount. For example, if you paid $113 in Ontario (13% HST), the calculator divides by 1.13 to find the original price of $100 and the $13 HST amount. This is useful for expense reporting and accounting.
Why does Quebec show GST and QST separately?
Quebec applies its 9.975% QST on top of the price before GST, making the combined effective rate 14.975%. Unlike HST provinces where there is a single combined rate, Quebec administers its QST separately through Revenu Quebec. Both the 5% GST and 9.975% QST are shown as separate line items for accurate accounting.
Are these Canadian tax rates accurate for 2026?
The rates in this calculator reflect current Canadian federal and provincial sales tax rates. However, governments can change rates at any time. For official filings, always verify rates with the Canada Revenue Agency (CRA) or your provincial tax authority. This tool is designed for quick estimates, not as a substitute for professional tax advice.