Tex. Civ. Prac. & Rem. Code § 38.001
(b) A person may recover reasonable attorney's fees from an individual or organization other than a quasi-governmental entity authorized to perform a function by state law, a religious organization, a charitable organization, or a charitable trust, in addition to the amount of a valid claim and costs, if the claim is for:
Acts 1985, 69th Leg., ch. 959, Sec. 1, eff. Sept. 1, 1985.
Acts 2021, 87th Leg., R.S., Ch. 665 (H.B. 1578), Sec. 1, eff. September 1, 2021.