Any liquid petroleum vendor who properly remits tax under this chapter may retain an amount equal to the percentage of tax remitted as follows: (1) Two percent of the first twenty - five thousand gallons taxed each month; (2) One percent on the gallons taxed in excess of twenty - five thousand each month; (3) The maximum amount retained each month shall be five hundred dollars. Source: SL 1995, ch 71 , § 40.