No we don't pay tax on actual transaction but I've heard they have that in mind maybe in the future but so far we only pay that small amount also when you sell them.
Depending how big the amount and the state you buy or sell including cost ,tax etc. on a gain of 10 % we have almost 6 netto.Therefore in the States and probably as well in Canada the cost are much lower so easier to take profit but then you have the tax issue on the profits.So for us even we have a double or a triple in profits no extra tax to pay.
I see we have green candle today .Hopefully we can finally start an uptrend till end this year.