(3) The premium and other taxes imposed on insurers pursuant to Sections 38-7-20, 38-7-30, 38-7-40, 38-7-50, and 38-7-90 must be paid to the director or his designee in quarterly installments on or before March first, June first, September first, and December first of each calendar year. The quarterly payments must be calculated and paid as follows:
- (a) The quarterly installments paid on or before June first, September first, and December first must each be computed based upon one-fourth of the total premiums collected by the insurer during the immediately preceding calendar year ending on December thirty-first. The quarterly installments for June first, September first, and December first must be reported on forms prescribed by the director or his designee.
- (b) The quarterly installment paid on or before March first must equal the difference between the total tax liability of the insurer for the immediately preceding calendar year ending on December thirty-first and the sum of the quarterly installments paid by the insurer on June first, September first, and December first of that immediately preceding calendar year. The quarterly installment for March first must be reported on the returns filed in accordance with subsection (1) of this section. An insurer whose quarterly tax installments are less than one thousand dollars per payment may elect not to pay its tax liability on a quarterly basis and, instead, may elect to report and pay its entire tax liability on the return filed in accordance with subsection (1) of this section.