Sec. 206.07.  PAYMENT OF TAX BY MAIL.  (a)  The payment of any tax imposed by this code is timely made if not later than the date on which payment is due the tax is mailed to the commission in an envelope with the proper address and postage and is received by the commission not later than the 10th day after the date on which it was due.
(b)  A legible postmark made by the United States Postal Service is prima facie evidence of the date of mailing.
Added by Acts 1979, 66th Leg., p. 1965, ch. 777, Sec. 1, eff. Aug. 27, 1979.