Tex. Util. Code § 122.205
Current with legislation from the 2023 Regular and Special Sessions signed by the Governor as of November 21, 2023.
A tax imposed by this chapter that becomes delinquent draws interest at the rate of 12 percent a year beginning on the 60th day after the date the tax becomes delinquent and continues to draw interest until the date the tax is paid.
Tex. Util. Code § 122.205