Such report and payment are due as follows:
For the period January 1 through March 31, the report and payment are due April 20;
For the period April 1 through June 30, the report and payment are due July 20;
For the period July 1 through September 30, the report and payment are due October 20;
For the period October 1 through December 31, the report and payment are due January 20.
Miss. Code § 27-21-7