4.Gain or loss on sale of partnership interest. Notwithstanding subsection 3, the gain or loss on the sale of a partnership interest is sourced to tribal land in an amount equal to the gain or loss multiplied by the ratio obtained by dividing the original cost of partnership tangible property located on tribal land by the original cost of partnership tangible property everywhere, determined at the time of the sale. Tangible property includes property owned or rented and is valued in accordance with section 5211, subsection 10. If more than 50% of the value of the partnership's assets consists of intangible property, gain or loss from the sale of the partnership interest is sourced to tribal land in accordance with the property and payroll factors of the partnership for its first full tax period immediately preceding the tax period of the partnership during which the partnership interest was sold. For purposes of this subsection, the property and payroll factors of a partnership are determined in accordance with chapter 821. This subsection does not apply to the sale of a limited partner's interest in an investment partnership where more than 80% of the value of the partnership's total assets consists of intangible personal property held for investment, except that such property cannot include an interest in a partnership unless that partnership is itself an investment partnership. If the apportionment provisions of this subsection do not fairly represent the extent of the partnership's business activity on tribal land, the taxpayer may petition for, or the State Tax Assessor may require, in respect to all or any part of the partnership's business activity the employment of any other method to effectuate an equitable apportionment to tribal land of the partner's income from the sale of the partnership interest.
[2021, c. 681, Pt. G, §5(NEW).]