I live and work on a visa in Tokyo. I have yet to start trading real money, but want to set it up right the first time when I do. It would be hugely beneficial for me to file taxes in Japan rather than the US for 2 main reasons 1) I could pay much less in taxes 2) Statement of income could be used to extend visa The easiest way would be to open a trading account in Japan, funded by a Japanese bank. The downside would be doing it all in kanji (the written language). I imagine I am not the only one in this situation. Has anyone figured anything out? I would very much appreciate your experience and response.