I'd like to start trading, but what happens when you get profit from a new coin? you pay taxes as individual (like capital gain) or you must open a registered company?
Each person is individual, but much depends on the laws of a particular country. I believe that the right decision in this situation is to consult with an experienced lawyer in your city. He will be able to tell in detail how you can arrange the most correctly and legally activities for the payment of taxes.