Tex. Labor Code § 61.018: DEDUCTION FROM WAGES.

An employer may not withhold or divert any part of an employee's wages unless the employer:

(1) is ordered to do so by a court of competent jurisdiction;

(2) is authorized to do so by state or federal law; or

(3) has written authorization from the employee to deduct part of the wages for a lawful purpose.

Acts 1993, 73rd Leg., ch. 269, Sec. 1, eff. Sept. 1, 1993.