European laws are much more rough. In my place, if you fight as a foreign citizen, you can't be paid on another territory without appropriate declaration of the sums, and if the country has a tax agreement with Romania, then you will be exempted at home to avoid double taxing. Makes a rough time to the promoters. On the other hand it is intelligible that, if the fight which is the source of the income happens in a country, the promoter and organizers cannot pay the fighter in another place and thus shortcut from the taxes the very place where the income was created. Miserable thing is that for pro fighters the cash is assymilated with a salary and taxed as high as 40 to 50% for sums with 3 zeros - that is, you might pay 4 to 5 thousand out of 10. Very unfair, taking into account how short a career is in this job.