(1) Interest charged on delinquent gasoline, special fuel, compressed natural gas and liquefied petroleum gases taxes is 12% a year or 1% a month.

(2) Interest will be calculated daily using the rate arrived at by dividing 12% interest per year by 365 days.

(3) All payments for delinquent accounts, including credits, are first credited to tax, then any remaining excess credited to interest and then to penalty.