As I understand previous posts in this (and other) discussion boards, there is no capital gains tax for private investors in Switzerland. Also, capital gains are not considered ordinary income that would be subject to income tax. A paradise for speculators and (semi-)professional traders, even considering the high cost of living there? There might be one problem though. In many countries taxation is different for "private" and "professional" investors/traders. Capital gains from professionals that are obtained in the course of running a business are often treated as ordinary income. What are the criteria to be considered a "professional" by Swiss tax authorities? I assume that someone isn't running a brokerage business or managing other people's funds. If that person derives most of his income from capital gains, or if such persons trades very frequently, will he be considered a "professional" so that his capital gains are subject to ordinary income tax? What are the criteria used? I wonder whether someone could shed some light on the situation for traders there. Thanks.