kmc41
Returning Member

State Taxes - Residency

I live in CA. My 21 year old son goes to school in Idaho. He lived most of 2020 in Idaho. In September he obtained an Idaho drivers license. All is wage earnings for 2020 we from Idaho. I am not going to claim him as a dependent. Does he have to file state taxes in both CA and ID this year or is he no longer considered a resident of CA and only has to file in ID?