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?
Yes i think in future there will be a complete regulations about profit that you gain from cryptocurrency, i believe there were several country that already have a tax for cryptocurrency for example japan. This news might give a picture about taxation of crypto gain in japan.
https://cointelegraph.com/news/japanese-taxation-committee-seeks-to-simplify-cryptocurrency-tax-reporting