Miss. Code § 77-3-87
All reasonable and necessary expenses of the administration of the duties imposed on the public utilities staff and on the commission by Title 77, Mississippi Code of 1972, excluding the reasonable and necessary expenses of the administration and enforcement by the commission of the laws of this state pursuant to Chapters 7 and 9, Title 77, Mississippi Code of 1972, shall be provided as follows: There is hereby levied a tax upon (a) all utilities, the rates of which are subject to regulation by the provisions of this chapter and upon (b) all utilities not subject to such rate regulation which furnish to the ultimate consumer utility services of the type described by subparagraph (i) of paragraph (d) of Section 77-3-3 and otherwise subject to regulation by the provisions of this chapter, such levy to be effective on the first day of each year and to be calculated as follows: The rate of the tax shall be one hundred sixty-four thousandths of one percent (164/1000 of 1%) per year, of the gross revenues from the intrastate operations of the utilities taxed under this section. The rate of the tax for electric power associations and rural electrification authorities shall be ninety thousandths of one percent (90/1000 of 1%) per year of the gross revenues from the intrastate operations of electric power associations and rural electrification authorities taxed under this section. Effective July 1, 2017, the sum of all taxes levied by this section shall not exceed the total legislative appropriation of monies for the Public Utilities staff and the Public Service Commission for the ensuing fiscal year. The commission and the executive director of the public utilities staff shall certify to the Department of Revenue the amount of legislative appropriations of monies for the regulation of utilities. The Department of Revenue shall adjust the tax rates on a pro rata basis to generate the necessary revenues established by such legislative appropriations. Each utility which is subject to the tax levied by this section shall file a statement of its gross revenue by April 1 of each year showing the gross revenue for the preceding year's operation. These statements of gross revenue shall be filed with the Department of Revenue on forms prescribed and furnished by the Department of Revenue. The Department of Revenue shall file a copy of these statements of gross revenue with the public utilities staff and the commission. The Department of Revenue shall calculate the amount of tax to be paid by each of the utilities and shall submit a statement thereof to the respective utilities, and the amount shown due in the statements to the utilities shall be paid by them within thirty (30) days thereafter to the Department of Revenue. The Department of Revenue shall furnish the public utilities staff and the commission with an itemized list showing gross and net revenues, assessments, tax collections and other related information for the respective utilities. The Department of Revenue shall deposit these funds into the General Fund if the State Treasury on the same day collected.
All administrative provisions of the Mississippi Sales Tax Law, including those which fix damages, penalties and interest for nonpayment of taxes and for noncompliance with the provisions of such chapter, and all other duties and requirements imposed upon taxpayers, shall apply to all persons liable for taxes under the provisions of this chapter, and the Commissioner of Revenue shall exercise all the power and authority and perform all the duties with respect to taxpayers under this chapter as are provided in the Mississippi Sales Tax Law except where there is a conflict, then the provisions of this chapter shall control. The term "gross revenue " as used in this section is the total amount of all revenue derived by each of the utilities from its intrastate operations, which are subject to rate regulation under the provisions of this chapter or which constitute utility services of the type described by subparagraph (i) of paragraph (d) of Section 77-3-3 and which are regulated by this chapter and furnished to ultimate consumers. The Department of Revenue is hereby authorized to use all tax returns of any utilities available to it and to make audits as may be deemed necessary of all records of utilities in order to correctly determine the amount of such gross revenue.
All proceeds of the above-mentioned tax are hereby allocated to the public utilities staff and to the commission in the manner provided in this section for the purpose of this chapter.
Each utility subject to the provisions of this section shall be allowed to recover, through the use of a rate adjustment clause or rider, the total amount of taxes paid by the utility pursuant to this section for the reasonable and necessary expenses of the commission and the public utilities staff.
From and after July 1, 2016, the expenses of this agency shall be defrayed by appropriation from the State General Fund and all user charges and fees authorized under this section shall be deposited into the State General Fund as authorized by law.
From and after July 1, 2016, no state agency shall charge another state agency a fee, assessment, rent or other charge for services or resources received by authority of this section.
Miss. Code § 77-3-87