This is great information. I have a related scenario. I am a self-employed athlete and also live in Ohio. I received a 592-B from California from a week spent in the state competing. I also have a 1099 from California for work that was paid to me as an endorsement deal which is part of my general income for the entire year and does not relate specifically to California, but everywhere that I competed (3 countries outside the US, and 12 states). What income do I include on the state return? On another note...I have a huge loss in this state because California is so expensive: travel expenses, food, equipment maintenance, coaching, etc all totaled a ridiculous amount. It is my biggest loss of the year, but if I use a basic income allocation method (money received from CA over my net income), California would be entitled to 1% of my net income from business. Thanks! This is very complicated. I am using the basic income allocation method described in all other states.
