Mont. Code Ann. § 15-16-103 — Special Improvement Districts With Annual Interest Payments -- Collection Of Special Assessments For All Special Improvements

15-16-103 . Special improvement districts with annual interest payments -- collection of special assessments for all special improvements. (1) Special assessments or installments of special assessments made for special improvements in towns and cities, the bonds for which annual interest payments have been specified, and that have been duly and regularly made and levied by resolution according to law, are payable as provided in this section.
(2) (a) Except as provided in subsection (2)(b), one-half of the taxes are payable on or before 5 p.m. on November 30 of each year and one-half of the taxes are payable on or before 5 p.m. on May 31 of each year.
(b) For a taxpayer enrolled in the alternative payment schedule for primary residences provided for in 15-16-122 , one-seventh of the taxes must be paid on or before 5 p.m. on the last day of each month beginning on November 30 and ending on May 31 provided that the full amount of the taxes payable is made by 5 p.m. on May 31 of each year. The seven monthly payments must be as nearly equal as possible and are due on November 30, December 31, January 31, February 28, March 31, April 30, and May 31.
(3) (a) (i) Except as provided in subsection (3)(a)(ii),if the taxes are not paid on or before 5 p.m. on November 30, they are subject to the same interest and penalty for nonpayment as delinquent property taxes under 15-16-102 . The penalty and interest may be waived by resolution of the city council, as provided in 15-16-102 (6).
(ii) For a taxpayer enrolled in the alternative payment schedule for primary residences provided for in 15-16-122 , unless one-seventh of the taxes are paid on or before 5 p.m. on November 30 of each year, and the remaining tax payments are paid on or before the alternative payment schedule due dates provided for in subsection (2)(b), the amount payable is delinquent and draws interest and penalty as provided in subsection (3)(a)(i).
(b) If the taxes are not paid on or before 5 p.m. on May 31, they are subject to the same interest and penalty for nonpayment as delinquent property taxes under 15-16-102 . The penalty and interest may be waived by resolution of the city council, as provided in 15-16-102 (6).
(4) The collection of special assessments or installments of special assessments made for special improvements in towns and cities are as provided by 7-12-4181 .