Bulgaria 10% no matter what you trade. Check also obligatory social security and health insurance contributions which may apply in some countries. In Bulgaria 12,90% on max 1329,36 euro/month income. So max is 171,49 euro/month social security. Maybe we can start a village in Bulgaria, only for traders. http://www.kik-bg.com/en/payroll-calculators/payroll-calculator-gross-to-net.php
FWIW, the revision of capital gains tax in the Netherlands is off the political agenda for now. http://www.nu.nl/politiek/4078241/onderhandelingen-belastingherziening-geklapt.html
@Peternam Just remember: Utilising taxation ineffiencies is a remarkable way of asking for trouble in some countries.
Is there anyone who could confirm that the lump-sum taxation is available for traders since we manage only our own personal assets? Someone told me this here, on this forum but I'm not sure. I've sent an email to the Swiss authorities right now about this but is there anyone who has knowledge about this matter?