Md. Code Ann., Tax-Gen. § 10-810
(b) Notwithstanding the provisions of subsection (a) of this section, a corporation which is not otherwise required to file a return shall file a return if the corporation:
Added by Acts 1988, c. 2, § 1, eff. Jan. 1, 1989. Amended by Acts 1989, c. 173.
Formerly Art. 81, § 295.