Yes. any income that you receive while you are a California resident is subject to California tax, no matter where the income is from.
@FocsSpeed wrote:
Most of the gain is from 2016-2021 when I am still living in WA.
If you sell the house in 2023, all of the capital gain is from 2023. It doesn't matter how much the value of the house increased each year. You don't have any capital gain until you sell it.
