Both taxes (GST & QST) are included in the final amount on the taximeter. The tip percentage is applied to the final amount displayed on the taximeter:
Subtotal = $24.05
GST = $1.20
QST = $2.40
Total displayed on taximeter = $27.65
Tip on taximeter amount (15%) =$ 4.15
Grand total = $31.80
Please note that 100% of the tip goes to your driver.
You can adjust the tip percentage at any point before the end of your ride.