I paid a law firm to evaluate whether trading US equities using a UK broker was considered foreign income. As usual they did not give a firm answer, but they leaned primarily towards: No.
Ie. much like the US under this libtard Biden and his leftist-marxist "govt" gang...And this country is ruled by socialist party and marxists, so beautiful place to visit but for doing business - run away.

What about scandinavia region. They're doing it right. Well, mostly right.. Socialism always ends the same way.