Tax Code §151.2021

(a) The comptroller may cancel a sales tax permit under this section if the permit holder has reported no business activity for 12 consecutive months. No business activity means zero total sales, zero taxable sales, and zero taxable purchases. (b) To cancel a permit, the comptroller shall send a notice of the comptroller's intention to cancel the permit to the permit holder at the address shown on the permit. The notice must specify the date on which the comptroller intends to cancel the permit. That date must be at least 30 days after the date the comptroller sends the notice to the permit holder. The comptroller may not cancel the permit before the date specified in the notice.