Tex. Tax Code § 171.0004
(b) An entity conducts an active trade or business if:
(e) For purposes of this section:
(3) holding a seat on the board of directors of an entity does not by itself constitute conduct of an active trade or business.
Acts 2006, 79th Leg., 3rd C.S., Ch. 1 (H.B. 3), Sec. 2, eff. January 1, 2008.
Acts 2007, 80th Leg., R.S., Ch. 1282 (H.B. 3928), Sec. 4, eff. January 1, 2008.