(a) Interest. — When the taxpayer does not pay the tax levied by this chapter, on or before the due date for payment, the Company as part of the tax, shall collect an interest on the unpaid amount, at a ten percent (10%) annual rate, from the due date of the payment until the date of the final payment.(b) Charges. — In every case where the imposition of interest applies pursuant to the preceding subsection (a), the Company may additionally collect the following charges:(1) For a payment delay of thirty (30) days or less, the taxpayer may be imposed a charge equivalent to five percent (5%) of the principal.(2) For a payment delay in excess of thirty (30) days, the taxpayer may be lev[ied] a charge equivalent to ten percent (10%) of the principal in addition to the allowed five percent (5%) of clause (1) of this subsection. History —Sept. 9, 2003, No. 272, § 46, eff. 180 days after Sept. 9, 2003.