Tex. Fin. Code § 305.004
(a) In addition to the amount determined under Section 305.003, a creditor who charges and receives legal interest that is greater than twice the amount authorized by this subtitle is liable to the obligor for:
Amended by Acts 1999, 76th Leg., ch. 62, Sec. 7.18(a), eff. Sept. 1, 1999.