Quebec GST and QST calculator
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- GST 5 %
- $3.00
- QST 9.975 %
- $5.98
- Total
- $68.97
The calculator opens on Quebec. Enter the price before tax to add GST and QST, or switch to Remove tax to find the price before tax from a total.
How GST and QST work in Quebec
- GST = price before tax × 5%
- QST = price before tax × 9.975%
- Total = price before tax × 1.14975
Example: on 100.00, GST is 5.00, QST is 9.98 (9.975 rounded to the cent) and the total is 114.98.
Taking GST and QST off a total
- Price before tax = total ÷ 1.14975
Because each tax is rounded on its own, a plain division can be a cent off. The calculator corrects for that, so a total of 114.98 comes back to exactly 100.00.
For other provinces, use the GST calculator.
Questions
What is the sales tax in Quebec?
5% GST plus 9.975% QST, 14.975% in total, each calculated on the price before tax.
Is QST calculated on GST?
No. Since 2013 both taxes are calculated on the price before tax, not QST on top of GST.
How do I take GST and QST off a total?
Divide the total by 1.14975. A total of 114.98 is 100.00 before tax. The calculator's Remove tax mode does it and corrects the one-cent rounding difference.
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