Local Government Code of 1991
Section 255. Interests on Unpaid Real Property Tax. - In case of failure to pay the basic real property tax or any other tax levied under this Title upon the expiration of the periods as provided in Section 250, or when due, as the case may be, shall subject the taxpayer to the payment of interest at the rate of two percent (2%) per month on the unpaid amount or a fraction thereof, until the delinquent tax shall have been fully paid: Provided, however, That in no case shall the total interest on the unpaid tax or portion thereof exceed thirty-six (36) months.