15-30-3404. Election -- partnership pays -- rulemaking. (1) Subject to the limitations in subsection (2), an audited partnership making an election under this section shall:

(a) no later than 90 days after the final determination date, file a completed federal adjustments report, including information required by the department, and notify the department that it is making the election under this section. A partnership that fails to file a timely completed federal adjustments report must be assessed a late file penalty as provided for in 15-30-3302(5)(d).

(b) no later than 180 days after the final determination date, pay an amount, determined as follows, in lieu of taxes owed by its direct and indirect partners:

(i) exclude from final federal adjustments the distributive share of these adjustments reported to a direct exempt partner not subject to tax under 15-31-102(3);

(ii) for the total distributive shares of the remaining final federal adjustments reported to direct corporate partners subject to tax under 15-31-101 and to direct exempt partners subject to tax under 15-31-102(3), apportion and allocate the adjustments as provided in 15-31-301 and multiply the resulting amount by the appropriate tax rate under 15-31-121;

(iii) for the total distributive shares of the remaining final federal adjustments reported to nonresident direct partners subject to tax under 15-30-3311 or 15-30-2151, determine the amount of the adjustments that are Montana source income under 15-30-3311 and multiply the resulting amount by the highest tax rate under 15-30-2103; and

(iv) for the total distributive shares of the remaining final federal adjustments reported to tiered partners:

(A) determine the amount of the adjustments that would be subject to sourcing to Montana under 15-30-3302(6) and attributable to nonresident partners;

(B) determine the amount of the adjustments not attributable to nonresident partners; and

(C) determine the portion of the amount determined in subsection (1)(b)(iv)(B) that can be established, under regulations issued by the department, to be properly allocable to direct or indirect partners not subject to tax on the adjustments or that can be excluded under procedures for modified reporting and payment methods allowed under 15-30-3405;

(v) multiply the total of the amounts determined in subsections (1)(b)(iv)(A) and (1)(b)(iv)(B) and reduce by the amount determined in subsection (1)(b)(iv)(C) by the highest tax rate under 15-30-2103 or the appropriate tax rate in 15-31-121;

(vi) for the total distributive shares of the remaining final federal adjustments reported to resident direct partners subject to tax under 15-30-3311, multiply that amount by the highest tax rate under 15-30-2103; and

(vii) add the amounts determined in subsections (1)(b)(ii) through (1)(b)(vi), including penalty and interest as provided in 15-1-216.

(2) Final federal adjustments subject to the election under this section exclude:

(a) the distributive share of final audit adjustments that under 15-31-301 must be included in the unitary business income of any direct or indirect corporate partner, provided that the audited partnership can reasonably determine this; and

(b) any final federal adjustments resulting from an administrative adjustment request.

(3) The direct and indirect partners of an audited partnership that are tiered partners, and all of the partners of those tiered partners that are subject to tax under chapter 30 or 31, are subject to the reporting and payment requirements of 15-30-3403 and the tiered partners are entitled to make the election provided for in this section. The tiered partners or their partners shall make required reports and payments no later than 90 days after the time for filing and furnishing statements to tiered partners and their partners as established under 26 U.S.C. 6226 and the regulations thereunder. The department may promulgate regulations to establish procedures and interim time periods for the reports and payments required by tiered partners and their partners and for making the election under this section.