1) Tax laws are completely different for each European country. 2) At least for some of the countries (the once where I'm aware how taxes work) this is not the

1) Tax laws are completely different for each European country. 2) At least for some of the countries (the once where I'm aware how taxes work) this is not the case: Even if you exchange one cryptocurrency for another cryptocurrency it's taxable. However, long-term capital gains of cryptocurrencies aren't taxable in some European countries.