D.C. Code § 29A-101.125
Preparation and payment of appropriate taxes: Section 2(i) of D.C. Law 11-185 provides that nothing in the act shall be construed or interpreted as repealing or affecting any requirement of a domestic or foreign corporation to prepare and submit annual tax forms, or to pay any appropriate District or federal taxes, as provided in accordance with the laws of the District of Columbia or the United States.