Mo. Rev. Stat. § 238.040: Tax status of property and securities of authority.

All property, real and personal, owned or held by the Kansas City area transportation authority, and all interest income derived from any notes, bonds or other instruments in writing issued by said authority, shall possess the same status, with respect to taxation in the state of Missouri, as is now or may hereafter be possessed by property, real and personal, owned or held by cities, with said state of Missouri, and by the interest income derived from notes, bonds or other instruments in writing issued by such cities.