Judgment Interest Calculator Guide for Montana
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Published February 26, 2026 • Updated May 16, 2026 • By DocketMath Team
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US-MT interest rules
This source-backed guide covers US-MT interest authority (Mont. Code Ann. § 25-9-205, § 31-1-106). It certifies only the quoted source-backed rules below; related interest categories remain outside this page unless they are expressly listed in the receipt.
Mont. Code Ann. § 25-9-205, § 31-1-106
US-MT interest controlling authority under Mont. Code Ann. § 25-9-205, § 31-1-106.
25-9-205. obtain or enforce a judgment at a rate equal to the rate for bank prime loans published by the federal reserve system in its statistical release H.15 Selected Interest Rates or in any publication that may supersede it on the day judgment is entered, plus 3%. The interest may not be compounded. (b) The rate for bank prime loans established in subsection (1)(a) must be set as of January 1 of each year and remain in effect until December 31 of each year. (2) Interest on a judgment recovered in the courts of this stat
Use the calculator
DocketMath's interest calculator can model interest scenarios once you identify the controlling jurisdiction, amount, rate type, and accrual date. Use the source panel for the verified source-backed rule.
Sources
All sources are official primary law published by leg.mt.gov.
Corroboration method: government_primary_source_direct_fetch.