GST/HST Calculator
Gross Price: $113.00
- Province
- ON
- GST/HST rate
- 13%
- Amount before tax
- $100.00
- GST/HST amount
- $13.00
- Amount including tax
- $113.00
This calculator includes the federal GST and the HST component for participating provinces. It does not add separate provincial taxes such as BC PST, Manitoba RST, Saskatchewan PST, or Quebec QST.
What this calculator does
The GST/HST Calculator adds or removes the federal Goods and Services Tax (GST) and the Harmonized Sales Tax (HST) used in participating provinces. It uses the combined GST/HST rate for the province you select.
GST is a 5% federal tax. HST replaces GST and the provincial sales tax in Ontario, New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland and Labrador. The combined HST rate is 13% in Ontario and 15% in the other participating provinces.
How to use this calculator
- Choose whether you are adding tax to a pre-tax amount or removing tax from a tax-included amount.
- Select the province.
- Enter the amount.
- Click Calculate.
Formula
Tax amount = amount × combined rate ÷ 100
Amount including tax = amount + tax amount
Amount before tax = amount including tax ÷ (1 + combined rate ÷ 100)
The calculator uses the combined GST/HST rate. It does not add separate provincial taxes such as British Columbia PST, Manitoba RST, Saskatchewan PST, or Quebec QST.
What the results mean
The result card shows the selected province, the combined GST/HST rate, the pre-tax amount, the tax amount, and the tax-included amount.
Assumptions and limitations
- Rates are the standard combined GST/HST rates for the selected province.
- Zero-rated and exempt supplies, rebates, input tax credits, and point-of-sale rules are not modeled.
- Separate provincial taxes are not included.
- Rates can change. Confirm the current rate with the Canada Revenue Agency or the province before invoicing.
Frequently asked questions
Which provinces use HST?
Ontario, New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland and Labrador use HST. Alberta, British Columbia, Manitoba, Saskatchewan, Quebec, Yukon, the Northwest Territories, and Nunavut use GST, with separate provincial taxes in some provinces.
Does this calculator include PST or QST?
No. It calculates GST/HST only. Add the separate provincial tax yourself when the province charges one.
How do I remove GST/HST from a total?
Divide the tax-included amount by one plus the combined rate as a decimal. For example, at 13% HST, divide by 1.13.
Source
Reference: Canada Revenue Agency — GST/HST.
Disclaimer
This calculator is for planning and education. It is not tax advice. Confirm registration, rates, and filing obligations with the Canada Revenue Agency or a qualified tax professional.