Mich. Comp. Laws § 211.1075

Sec. 5. (1) Beginning January 1, 2016, the alternative state essential services assessment is levied on all eligible personal property as provided in this section. (2) The assessment under this section is a state tax on the eligible personal property owned by, leased to, or in the possession of an eligible claimant on December 31 of the year immediately preceding the assessment year and shall be calculated as follows: (a) For eligible personal property acquired by the first owner in a year 1 to 5 years before the assessment year, multiply the acquisition cost of the eligible personal property by 50% of the mills levied under section 5(2)(a) of the state essential services assessment act, 2014 PA 92, MCL 211.1055. (b) For eligible personal property acquired by the first owner in a year 6 to 10 years before the assessment year, multiply the acquisition cost of the eligible personal property by 50% of the mills levied under section 5(2)(b) of the state essential services assessment act, 2014 PA 92, MCL 211.1055. (c) For eligible personal property acquired by the first owner in a year more than 10 years before the assessment year, multiply the acquisition cost of the eligible personal property by 50% of the mills levied under section 5(2)(c) of the state essential services assessment act, 2014 PA 92, MCL 211.1055.