I plan to form a Montana LLC with a Montana address as my LLC's business address. I hired a mail forwarding service in Montana so I can set my business address there. I will operate the business remotely in WA state. I am a full time employee in WA state.
I understand that LLC taxes are pass through to me, so after I file the federal tax that includes my salary income in WA and LLC income in Montana, how do I file the Montana state income tax? Can I file a nonresident return only for the LLC income and not for my salary earned in WA state?
