I've searched a few queries, but didn't find many people in a situation quite matching mine.
Starting in October, I will work full-time for a company in Japan, and I will also put in some part-time remote work for a small company in the US (my current full-time employer). I have some general understanding that I can apply foreign earned income exclusion and foreign tax credit to the amount I earn from the Japanese company, but I'm not sure how things will work out for the US company. Neither is my boss (again, small company; his wife manages payroll).
I'm sure there are a lot of people here who have done something similar. Even if you can just post a link with a good starting point, I would appreciate any advice for how my employer and I should prepare for this and handle taxes and payroll.
Thanks in advance!