Business · Taxes and points
GST and QST calculator for businesses
Add or remove GST and QST from an amount, then see what remitting that tax by card through Chexy would earn in points.
Rates checked October 1, 2026
Your amount
Enter the amount of a taxable sale in Canadian dollars.
Quebec · CAD · GST 5% · QST 9.975%
Your result
Total including tax
$114.98
Calculation breakdown
- Before tax
- $100.00
- GST (5%)
- $5.00
- QST (9.975%)
- $9.98
- Total taxes
- $14.98
- Total including tax
- $114.98
How the taxes are calculated
GST (5%) and QST (9.975%) are calculated separately on the same pre-tax price. QST does not apply to GST. Each tax is rounded to the nearest cent; half a cent rounds up.
To remove taxes, the total is divided by 1.14975. We check nearby cent values for a price that matches the total after tax rounding. If none matches, a one-cent difference is shown in the breakdown.
For fully taxable sales in Quebec. Zero-rated or exempt sales and input tax credits are not calculated here.
Source: Revenu Québec| Before tax | GST | QST | Total including tax |
|---|---|---|---|
| $25.00 | $1.25 | $2.49 | $28.74 |
| $100.00 | $5.00 | $9.98 | $114.98 |
| $500.00 | $25.00 | $49.88 | $574.88 |
| $1,000.00 | $50.00 | $99.75 | $1,149.75 |