Mont. Code Ann. § 15-32-402
(1) An individual, corporation, partnership, or small business corporation as defined in 15-30-3301 that makes an investment of $5,000 or more in property that is depreciable under the Internal Revenue Code for a commercial system or a net metering system, as defined in 69-8-103, that is located in Montana and that generates energy by means of an alternative renewable energy source, as defined in 15-6-225, is entitled to a tax credit against taxes imposed by 15-30-2103 or 15-31-121 in an amount equal to 35% of the eligible costs, to be taken as a credit only against taxes due as a consequence of taxable or net income produced by one of the following:
(2) For purposes of determining the amount of the tax credit that may be claimed under subsection (1), eligible costs include only those expenditures that are associated with the purchase, installation, or upgrading of:
History: En. Sec. 2, Ch. 648, L. 1983; amd. Sec. 14, Ch. 591, L. 2001; amd. Secs. 4, 5(2)(b), Ch. 524, L. 2003.