Probably not a popular subject, but something that should be discussed since we don't live in a free market.
Just opening up a general discussion on it.
As far as I know, all you need is report it as capital gains, and depending on how much time you hold it, you will pay more or less.
If it's hold for less than 1 year, 45% is what you will lose.
If you hold for more than a year ,it's much lower, 20%? I think. It's a bit of a mess since BTC is so new, every country has different laws about it.