I am from Brazil and I am currently studying in Germany. I would like to know how would the situation be, if I would work for a UK based company as a contractor. My current german visa is a study visa, but I know it allows you to work 120 days (full work day), or 240 "half" days.
What should I do about the visa? Do I need to request a visa change? I'm not going to work more days than that, because I won't be staying here for too long.
How should I declare taxes?
... and, does the Brexit change anything?