Tex. Agric. Code § 55.010
An association formed under this chapter is exempt from all franchise or other license taxes, except that:
Acts 1981, 67th Leg., p. 1123, ch. 388, Sec. 1, eff. Sept. 1, 1981.
Amended by Acts 1981, 67th Leg., p. 2786, ch. 752, Sec. 15(c), eff. Jan. 1, 1982.