I lived in idaho for 6 months before moving to washington state do i still file a return for idaho

[TomD8 · Accepted solution]

Yes.  You must file a part-year resident Idaho return.  Idaho can tax you on the income you had during your time as an Idaho resident.  They can also tax you on any Idaho-source income you might have had after your move to Washington.  For example, income from working inside Idaho, or rental income from a property located in Idaho.