My son is considering moving to Washington temporarily for the balance of the 2024 calendar year. He will be working in Washington, and may or may not return to CA at a later date. If he does return, it will most likely be in CY 2025. He will likely have worked approximately 7 months in CA and 5 in Washington by filing time. Will he be responsible for any CA state income tax for his income earned in Washington for those last 5 months?
