The tax commissioner, after the provisions of chapter 57-06 have been complied with and final assessment has been made by the state board of equalization, shall compute a tax upon the valuation fixed as is provided by law for the assessment of other utilities. Such a tax must be computed by applying to that portion of the valuation which by law is subject to tax the average millage rate, which is obtained by dividing the total taxable valuation of all property within this state for the current year, into the total of all state and local taxes assessed within the state on a millage basis for the current year. The tax for air transportation companies must be computed by applying, to that portion of the valuation which by law is subject to the tax, the average millage rate which is obtained by dividing the total taxable valuation of all property for the current year, within all cities operating an airport served by scheduled airlines in North Dakota, into the total of all state and local taxes assessed within all such cities on a millage basis for the current year.
57-32-03. Tax statements prepared by state tax commissioner - When due and delinquent. On or before the thirty-first day of March in each year, the tax commissioner shall provide each company assessed under the provisions of this chapter a statement of its taxes due for the preceding year, with the valuations and taxes assessed in each case. Such taxes are due upon the fifteenth day of April next following the date of the statement of taxes due. The taxes become delinquent on the first day of May next following the due date and, if not paid on or before said date, are subject to a penalty of two percent and, on June first following delinquency, an additional penalty of two percent and, on July first following delinquency, an additional penalty of two percent and, an additional penalty of two percent on October fifteenth
following delinquency. From and after January first of the year following the year in which the taxes became due and payable, simple interest at the rate of twelve percent per annum upon the principal of the unpaid taxes must be charged until such taxes and penalties are paid, with such interest charges to be prorated to the nearest full month for a fractional year of delinquency. All the provisions of the law respecting delinquency of personal property assessments generally so far as may be consistent with the provisions of this chapter are applicable equally to the assessments and taxes provided for in this chapter.