Mont. Code Ann. § 72-2-221
(1) The surviving spouse of a decedent who dies domiciled in this state has a right of election, under the limitations and conditions stated in this part, to take an elective-share amount equal to the value of the elective-share percentage of the augmented estate, determined by the length of time the spouse and the decedent were married to each other, in accordance with the following schedule:
If the decedent and the The elective-share spouse were married to percentage is: each other: Less than 1 year supplemental amount only 1 year but less than 2 years 3% of the augmented estate 2 years but less than 3 years 6% of the augmented estate 3 years but less than 4 years 9% of the augmented estate 4 years but less than 5 years 12% of the augmented estate 5 years but less than 6 years 15% of the augmented estate 6 years but less than 7 years 18% of the augmented estate 7 years but less than 8 years 21% of the augmented estate 8 years but less than 9 years 24% of the augmented estate 9 years but less than 10 years 27% of the augmented estate 10 years but less than 11 years 30% of the augmented estate 11 years but less than 12 years 34% of the augmented estate 12 years but less than 13 years 38% of the augmented estate 13 years but less than 14 years 42% of the augmented estate 14 years but less than 15 years 46% of the augmented estate 15 years or more 50% of the augmented estate
History: En. 91A-2-201 by Sec. 1, Ch. 365, L. 1974; R.C.M. 1947, 91A-2-201; amd. Sec. 50, Ch. 494, L. 1993; Sec. 72-2-702, MCA 1991; redes. 72-2-221 by Code Commissioner, 1993; amd. Sec. 4, Ch. 592, L. 1995; amd. Sec. 2, Ch. 290, L. 1999.