Montana

Alimony & Spousal Support in Montana

Types of alimony, duration, modification, tax implications, and how courts determine amounts.

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How Long Does Alimony Last in Montana? 2026 Duration Guide

Montana alimony duration ranges from 3-5 years for short marriages to permanent support for 20+ year unions. No statutory formula exists under MCA § 40-4-203.

Antonio G. Jimenez, Esq.·15 min read

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Alimony Calculator: Estimating Spousal Support in Montana (2026 Guide)

Use our Montana alimony calculator to estimate spousal support. Montana courts consider 6 factors under MCA § 40-4-203. Filing fee: $250. No fixed formula.

Antonio G. Jimenez, Esq.·16 min read

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