Recently the local brokerage which I used has just increased its commission rate so I am looking for another brokerage firm now. A lot of you guys use IB, so how good or bad is the normal exchange rate in IB when you need to exchange money like European dollars to US dollars? I know there is monthly fee to get live data or something like that, what is that cost for you per month? Any other cost in your IB statement other than trading commission and tax?
One more, do we need to pay profit tax if we trade and win money in US market even I am not a US citizen?
One more, do we need to pay profit tax if we trade and win money in US market even I am not a US citizen?