Finance calculator
Canada - 2026Canada GST/HST Calculator
Estimate Canadian GST/HST and provincial tax by province or territory, with inclusive and exclusive price modes.
Formula
Canada GST/HST add/remove formulas
This calculator applies broad CRA province and territory rates. It excludes place-of-supply rules, exemptions, rebates, input tax credits, and detailed provincial filing rules.
Total tax = net price x combined rate; gross price = net price + total tax; net price = gross price / (1 + combined rate)
In Ontario, 1,000 before 13% HST has 130 tax and a gross price of 1,130.
Sources and assumptions
Canada GST/HST source notes
This profile covers a simplified Canada GST/HST and provincial tax add/remove calculation using province and territory rates published by the Canada Revenue Agency, including Nova Scotia's 14% HST from April 1, 2025.
- Effective year
- 2026
- Last verified
- 2026-05-29
This calculator applies broad CRA province and territory rates. It excludes place-of-supply rules, exemptions, rebates, input tax credits, and detailed provincial filing rules.
Official and reference sources
Assumptions
- The province or territory selected by the user determines the rate used in the calculation.
- Exclusive mode treats the entered amount as before GST, HST, PST, RST, or QST.
- Inclusive mode backs tax out from the entered total using the combined displayed rate.
- The whole amount is treated as taxable at one combined rate.
Not included
- Place-of-supply rules, zero-rated or exempt supplies, point-of-sale rebates, First Nations relief, and imported taxable supplies.
- Input tax credits, registration, returns, invoicing, penalties, and province-specific filing obligations.
- Local fees, environmental levies, excise taxes, and product-specific exceptions.
FAQs
Does this support all provinces and territories?+
Yes. Select the province or territory to use the displayed GST, HST, PST, RST, or QST combination.
Can it remove GST/HST from an inclusive price?+
Yes. Inclusive mode backs out the combined tax rate and shows the tax split where applicable.
How does the Canada GST/HST Calculator calculate the result?+
It uses the Canada GST/HST add/remove formulas: Total tax = net price x combined rate; gross price = net price + total tax; net price = gross price / (1 + combined rate). In Ontario, 1,000 before 13% HST has 130 tax and a gross price of 1,130.
What information do I need to use the Canada GST/HST Calculator?+
Estimate Canadian GST/HST and provincial tax by province or territory, with inclusive and exclusive price modes.
How accurate is the Canada GST/HST Calculator?+
Canada GST/HST Calculator applies the formula and assumptions shown on this page. Results may be rounded for readability, so verify changing rates, thresholds, medical guidance, or legal rules with the cited source or a qualified professional.
What should I check before using the Canada GST/HST Calculator result?+
Check that the units, dates, rates, and assumptions match your situation. Change one input at a time to understand which values have the largest effect on the result.
Finance guide
How to use the Canada GST/HST Calculator
Estimate Canadian GST/HST and provincial tax by province or territory, with inclusive and exclusive price modes. The page also explains the canada GST/HST add/remove formulas and shows a practical example: In Ontario, 1,000 before 13% HST has 130 tax and a gross price of 1,130.
- 1
Enter your details
Enter inclusive and exclusive price modes, then complete any other fields shown in the calculator.
- 2
Check the calculation
Review the result alongside the canada GST/HST add/remove formulas: Total tax = net price x combined rate; gross price = net price + total tax; net price = gross price / (1 + combined rate).
- 3
Compare scenarios
Change one or more inputs to see how they affect the canada GST/HST Calculator result before you use the estimate.
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