GST/QST Calculator for Canada
Compute GST, QST, HST, or PST for any Canadian province in 2025. Add or remove tax in one click.
🍁 What is the GST/QST Calculator for Canada?
Canadian sales taxes are a multi-layer system that combines a federal Goods and Services Tax (GST) of 5% with provincial taxes that vary by jurisdiction. In Quebec, the provincial tax is called the taxe de vente du Quebec (QST) at 9.975%, giving a combined rate of 14.975%. In Ontario and the Atlantic provinces, the federal and provincial components are merged into a Harmonized Sales Tax (HST) at 13% or 15%. British Columbia, Manitoba, and Saskatchewan collect the GST separately alongside their own provincial sales tax (PST or RST). Alberta, Northwest Territories, Nunavut, and Yukon apply only the 5% federal GST.
This calculator handles every province and territory in Canada for 2025. A Quebec resident buying a $500 appliance wants to know the full cost including both GST and QST before making a purchase decision. A small business owner in Ontario needs to collect the correct 13% HST on invoices and remit it to the Canada Revenue Agency (CRA). An accountant in British Columbia reconciling supplier invoices needs to extract the GST amount separately from the PST for input tax credit (ITC) claims. A traveler comparing prices across provinces can see that buying in Alberta (5% only) saves significantly compared to Quebec (14.975%) on large purchases.
A common misconception is that all of Canada uses a single sales tax system. In practice, there are three systems operating simultaneously: HST provinces where the CRA collects everything, GST+QST in Quebec where the CRA collects GST and Revenu Quebec collects QST, and GST+PST provinces where the CRA collects GST and the province collects PST through its own department. This calculator automatically handles all three systems and shows the federal and provincial components separately so you can track each for remittance and claiming purposes.
The Remove Tax mode is particularly useful for bookkeeping. When a receipt shows only a tax-inclusive total, you need the pre-tax base to record the correct GST or QST for an ITC or input tax refund (ITR) claim. Dividing manually by 1.14975 (Quebec) or 1.13 (Ontario) is error-prone. This calculator does it instantly for any province.
📐 Formula
📖 How to Use This Calculator
Steps
💡 Example Calculations
Example 1: Electronics Purchase in Quebec
C$200 pre-tax purchase in Quebec (GST 5% + QST 9.975% = 14.975%)
Example 2: Service Invoice in Ontario
C$500 pre-tax service invoice in Ontario (HST 13%)
Example 3: Removing QST from a Quebec Receipt
C$229.95 tax-inclusive total in Quebec (GST+QST 14.975%)
❓ Frequently Asked Questions
🔗 Related Calculators
What is the GST rate in Canada in 2025?
Canada's federal Goods and Services Tax (GST) rate is 5% in 2025. This rate has been in place since January 1, 2008, when it was reduced from 6%. It applies to most taxable goods and services sold in Canada, with some categories exempt or zero-rated. All provinces collect GST either directly or as part of a Harmonized Sales Tax.
What is the QST rate in Quebec for 2025?
Quebec's taxe de vente du Quebec (QST) rate is 9.975% in 2025. Combined with the federal GST of 5%, the total tax on most purchases in Quebec is 14.975%. QST is administered by Revenu Quebec, while GST is remitted to the CRA. Both are calculated on the pre-tax price, not on each other.
Which Canadian provinces use HST and what are the rates in 2025?
Five provinces use the Harmonized Sales Tax in 2025: Ontario at 13%, New Brunswick at 15%, Newfoundland and Labrador at 15%, Nova Scotia at 15%, and Prince Edward Island at 15%. HST combines the 5% federal component and the provincial component into one tax collected by the CRA and administered under a single system.
How do I calculate GST and QST on a purchase in Quebec?
Multiply the pre-tax price by 5% for GST and by 9.975% for QST. Both are calculated on the pre-tax amount, not on each other. For a $200 item: GST = $200 x 0.05 = $10.00, QST = $200 x 0.09975 = $19.95, Total Tax = $29.95, Total = $229.95. The combined rate is 14.975%.
How do I remove GST and QST from a tax-inclusive total in Quebec?
Divide the tax-inclusive total by (1 + 0.14975) = 1.14975 to get the pre-tax price. For a $229.95 total: Pre-tax = $229.95 / 1.14975 = $200.00. Then: GST = $200 x 0.05 = $10.00, QST = $200 x 0.09975 = $19.95. Use the Remove Tax mode on this calculator to do this automatically.
What is the difference between GST and HST in Canada?
GST is the federal 5% tax collected in all provinces. HST is a harmonized version that merges the federal GST with a provincial sales tax into a single combined rate. HST provinces (Ontario at 13%, Atlantic provinces at 15%) collect both federal and provincial portions in a single transaction through the CRA. Non-HST provinces collect GST federally and their own provincial tax (PST or QST) separately.
Which Canadian provinces have no provincial sales tax?
Alberta, the Northwest Territories, Nunavut, and Yukon have no provincial or territorial sales tax. Residents and businesses in these jurisdictions pay only the federal 5% GST. Alberta is the largest economy with no PST, which makes it a popular location for large purchases such as vehicles and appliances.
Are groceries exempt from GST and QST in Canada?
Most basic groceries are zero-rated for GST/HST purposes, meaning they are taxable at 0% and no tax is collected. This includes most food for human consumption sold in unheated form such as produce, bread, meat, and dairy. However, carbonated beverages, candy, chips, and restaurant meals are fully taxable. Quebec applies similar exemptions for QST, with some differences for specific food categories.
How is QST different from PST in other provinces?
QST (Quebec Sales Tax) operates similarly to PST in other provinces but is administered by Revenu Quebec rather than the provincial finance department. QST is calculated on the same pre-tax base as GST. Unlike BC's PST, QST does not apply to some business-to-business purchases and has an input tax refund (ITR) system similar to the GST input tax credit system. Manitoba's RST and Saskatchewan's PST are administered provincially and have different exemption rules.
How do input tax credits work for GST and QST in Canada?
Registered businesses can claim input tax credits (ITCs) to recover GST and QST paid on business expenses. For GST, ITCs are claimed on the GST return filed with the CRA. For QST in Quebec, input tax refunds (ITRs) are claimed on the QST return filed with Revenu Quebec. The Remove Tax mode on this calculator helps businesses identify the exact GST and QST amounts on invoices for ITC/ITR claim purposes.
What is the combined tax rate in Ontario in 2025?
Ontario's combined tax rate is 13% HST in 2025, consisting of the 5% federal component and an 8% provincial component. The Ontario HST was introduced in July 2010 when the province merged its PST with the GST. It is collected by the CRA and partially remitted back to Ontario. The 13% rate applies to most goods and services, with exemptions for basic groceries, prescription drugs, and residential rent.
How often do Canadian provincial tax rates change?
Provincial tax rate changes are rare and require provincial legislation. The federal GST rate has not changed since 2008. QST was last adjusted in 2013. HST rates in Atlantic provinces and Ontario have been stable for many years. The rates in this calculator reflect the 2025 combined rates as published by the Canada Revenue Agency and Revenu Quebec.