GST & QST calculator
Type a price. Get the GST, the QST and the total, or start from a total and find the price before taxes.
- To the cent
- Taxes included
- Invoice rounding
GST 5% + QST 9.975% · 14.975% in all
Total
$114.98
- Before taxes
- $100.00
- GST5%
- $5.00
- QST9.975%
- $9.98
- Total
- $114.98
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How Québec sales tax is calculated
Two taxes apply to most goods and services sold in Québec: the federal goods and services tax (GST), at 5%, and the Québec sales tax (QST), at 9.975%. Since 2013 both are calculated on the same amount, the price before taxes. The QST is no longer charged on top of the GST, and the combined rate is 14.975%.
Each tax is rounded to the cent on its own, as it appears on an invoice. On $100.00 the GST is $5.00 and the QST is $9.98 (9.975 rounded up), for a total of $114.98.
Starting from a price with taxes in
When a price already includes the taxes, each tax is its share of that total.
The calculator rounds each tax to the cent and leaves the rest to the price, so the three amounts always add back up to the total you entered.
What these rates do not cover
Not everything is taxed at these rates. Basic groceries and prescription drugs are zero-rated, residential rent is exempt, and printed books carry the GST but not the QST. When in doubt, Revenu Québec is the reference.
Selling or buying in another province? The Canadian sales tax calculator covers all thirteen provinces and territories.
Made by Mystya.
We are a web studio in Québec. These tools are free and will stay free: they are how we show what we care about, in something you can use. If you want a site built with the same attention, we would like to hear about it.