@rhodion , based on your reply and while acknowledging the other valid points raised by @TomD8 , @NCperson :
(a) assuming that the sale of the WA income property was completed/ closed after 06/05/2021 ( your date of move out of CA with intent to be a resident of WA forthwith), the income associated with the sale of this property is not taxable to CA because you became a Non-Resident of CA on 06/05/2021.
(b) the fact that you sold your CA main residence/main-home after abandoning CA residency is not material in defining residency ---- the main home was in CA and as such any gains from this would be taxable to CA without regard to residency.
(c) since your WA property was a rental property , you probably have been recognizing the rental income as out of state income for CA tax purposes. Thus any rental income for the period Jan 1st through date of abandonment of CA residency is taxable in CA ( since you were a resident till that date ).
Does this make sense ?
pk
