Montana Title 15. Taxation § 15-30-2104. Tax on nonresident

(2) Pursuant to the provisions of Article III, section 2, of the Multistate Tax Compact, each nonresident taxpayer required to file a return and whose only activity in Montana consists of making sales and who does not own or rent real estate or tangible personal property within Montana and whose annual gross volume of sales made in Montana during the taxable year does not exceed $100,000 may elect to pay an income tax of 1/2 of 1% of the dollar volume of gross sales made in Montana during the taxable year. The tax is in lieu of the tax imposed under 15-30-2103 and subsection (1)(a) of this section. The gross volume of sales made in Montana during the tax year must be determined according to the provisions of Article IV, sections 16 and 17, of the Multistate Tax Compact.