u/BlockMaster42

Hello. I am a normal office worker in Japan and on a 5-year 国人技 visa, my work allows me to do side work as long as it doesn't interfere with my 9-5. My question is that I will be mainly selling packaged food and beverages (mainly dry goods) to people in my home country so I am asking for advise here to people who may have some experience doing side work. At first, I heard I need to register as a sole proprietor for tax purposes but others said that I can just file for taxes at the end of the year. I think the former is the most logical but I am just wondering what am I missing.

Thank you in advance.