The California State return should be form 540, the federal return is form 1040. The federal return (1040) you will send to the Internal Revenue Service" in San Francisco with the payment as instructed. The CA State return you will send to the FRANCHISE TAX BOARD, PO BOX 942840, SACRAMENTO CA 94240-0001 and you will include a copy of the federal return (1040) with the State return.
