I have searched everywhere and can't find a clear cut answer. I'm doing my sister's taxes for her. She's a full-time graduate student in California but her permanent residence is in Kentucky. She worked for the school and made under $1300. They actually gave her two W-2's. One for KY and one for CA. They withheld around $4 from KY and nothing in CA. Does she need to file a return for CA? What is her status?
Reply : infotaxsquare.com
Income Tax Return
file based on residency. For instance; you live in the state of KY but
worked in the state of CA. You will file federal, state of CA and KY returns.
Resident return for KY and Non-Resident return for CA. If you physically lived
in CA during the year then you have to pro-rate period of residency as a
part year residents in the state of CA and KY.