GST/HST Calculator: Navigating Canadian Sales Tax

Canadian sales tax is complicated. We have GST (federal), PST (some provinces), HST (harmonized in others), and Quebec's QST. Rates range from 5% to 15% depending on where you are. Our calculator helps make sense of it all.
The Canadian Sales Tax Patchwork
- Alberta — 5% GST only (lowest in Canada)
- British Columbia — 5% GST + 7% PST = 12%
- Saskatchewan — 5% GST + 6% PST = 11%
- Manitoba — 5% GST + 7% RST = 12%
- Ontario — 13% HST
- Quebec — 5% GST + 9.975% QST = 14.975%
- Atlantic Provinces — 15% HST (highest in Canada)
GST/HST Calculator for any amount.
GST vs HST vs PST
GST (Goods and Services Tax)
The federal 5% tax that applies everywhere in Canada. Businesses collect it and remit to CRA.
HST (Harmonized Sales Tax)
In Ontario, Atlantic provinces, and PEI, GST and provincial tax are combined into one HST rate. Simpler to administer but means higher total rate.
PST/RST/QST (Provincial Sales Tax)
BC, Saskatchewan, Manitoba, and Quebec have separate provincial taxes. Businesses must register and remit separately from GST.
The Calculator Modes
- Add tax to price — Start with pre-tax price, add appropriate tax
- Extract tax from total — You have final price, figure out the tax portion
- Province-specific rates — Choose your province for accurate calculation
For Small Business Owners
If your revenue exceeds $30,000 in a year, you must register for GST/HST. Below that threshold, registration is optional but often worthwhile — you can claim input tax credits on business purchases.
GST/HST Calculator - calculate Canadian sales tax.
Related Tools
The Profit Margin Calculator helps with pricing strategy. The Salary Calculator shows your take-home after income tax.
Frequently Asked Questions
What is the GST/HST rate in each Canadian province?
The GST/HST Calculator handles all rates: 5% GST (Alberta, BC, etc.), 13% HST (Ontario), 15% HST (Atlantic), plus QST in Quebec.
How do I calculate GST/HST for business invoices in Canada?
Enter the pre-tax amount and select your province. The calculator shows GST/HST separately and the total amount for invoicing.
Which items are exempt from GST/HST in Canada?
Basic groceries, prescription drugs, medical devices, most child care, and residential rent are GST/HST exempt or zero-rated.
What other business calculators are available for Canadians?
The Profit Margin Calculator for pricing and Salary Calculator for payroll.


