Yes. Any income and any real or personal property acquired by either spouse during a marriage are considered community property and thus belong to both partners of the marriage.
Certain states have laws about community property defining how they expect MFS couples to share, or allocate, income. TurboTax has allocation screens and a worksheet to assist you in entering any adjustments your community property state may require when filing separately.
For more information, refer to Filing Separately in Community Property States.