Does anyone have an opinion on tax filing requirements in California an other States. Now that you have to have a license in California and get paid commission isn't that in fact working in that State. My accountant has been digging trying to figure it out. What is clear is that for years major league Sports players have been required to pay taxes in the States for the money earned in that State when they played games in that State. And what is a lenders liability for writing loans in a State and earning income in the State are they required to file State Income Taxes in every State they write loans?