GST/HST Calculator CA
Add or remove consumption tax and see the net and gross amounts.
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How it works
Adding tax multiplies the net price by the rate and adds it on. Removing tax works backwards from a tax-inclusive price to find the original net amount.
Gross = Net × (1 + rate); Net = Gross ÷ (1 + rate)Frequently asked questions
What is the GST rate in Canada?
The federal GST is 5% everywhere. Provinces add their own portion via HST, PST, RST or QST, so the total varies by province.
Which provinces use HST and what are the rates?
Ontario 13%, Nova Scotia 14% (since April 2025), and New Brunswick, Newfoundland and Labrador and PEI at 15%.
How do I remove HST from a total?
Divide the tax-inclusive total by 1 plus the rate. In Ontario that is ÷ 1.13; in Nova Scotia ÷ 1.14.
Which provinces have no provincial sales tax?
Alberta, Yukon, the Northwest Territories and Nunavut charge only the 5% federal GST.
What changed in Nova Scotia?
Its HST dropped from 15% to 14% on 1 April 2025, as the provincial portion fell from 10% to 9%.
When must a business register for GST/HST?
Once worldwide taxable revenue exceeds $30,000 over four consecutive calendar quarters; voluntary registration is allowed below that.
How GST and HST work in Canada
Canada has a 5% federal GST that applies nationwide. On top of it, provinces handle their share in different ways, so the total sales tax you pay depends on the province where the sale takes place.
HST provinces
Five provinces combine the federal and provincial portions into a single Harmonized Sales Tax: Ontario 13%, Nova Scotia 14% (reduced from 15% on 1 April 2025), and New Brunswick, Newfoundland and Labrador, and Prince Edward Island at 15%. To add HST, multiply by 1 plus the rate; to remove it, divide — a $113 Ontario total ÷ 1.13 = $100 before tax.
GST-plus-provincial and GST-only
British Columbia (5% GST + 7% PST), Saskatchewan (5% + 6% PST) and Manitoba (5% + 7% RST) charge a separate provincial tax on the pre-tax price, while Quebec adds 9.975% QST (about 14.975% combined). Alberta and the three territories charge only the 5% GST.
You must register for a GST/HST account once worldwide taxable revenue exceeds $30,000 over four consecutive quarters. Registered businesses claim input tax credits to recover the GST/HST on their own purchases; PST and QST follow separate provincial rules.
Results are estimates for general guidance in Canada and may not reflect the latest local rates, fees or rules. Check official sources before making decisions.