Impact in Montana
2 min read
Published July 14, 2026 • By DocketMath Team
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Quoted from the source law itself. Not legal advice; confirm how it applies to your matter.
Authority and key facts
- Interest Rate: 10
- Rate Type: fixed
- Interest: The charge for the privilege of borrowing money, typically expressed as an annual percentage rate.
- Max Contract Rate: 15
This page provides general legal information and calculation tools, not legal advice. DocketMath is not a law firm and does not provide legal representation, and using this site does not create an attorney-client relationship. Laws change and exceptions apply, so deadlines and amounts specific to your situation should be confirmed with a licensed attorney in your jurisdiction.
Impact in Montana
Montana sets a fixed prejudgment interest rate of 10% per year under Mont. Code Ann. § 31-1-106(1). This means that once a claim becomes certain and the amount is ascertainable, interest accrues at that annual rate until judgment is entered. The statute applies to contract and tort actions alike, though the point at which interest begins to run depends on when the damages become liquidated. The statute does not list a specific formula, but the interest is calculated by applying the 10% rate to the principal amount for the period from accrual to judgment. The worked example below illustrates the calculation. To estimate interest on a specific claim, use the DocketMath calculator with the verified 10% rate from the official source.
Governing authority
In Montana, the impact rule is set by Mont. Code Ann. § 31-1-106(1). The verified packet cites Mont. Code Ann. § 31-1-106(1) (https://leg.mt.gov/bills/mca/31/1/31-1-201.htm).
Montana impact: the verified value is 10% under Mont. Code Ann. § 31-1-106(1). The verified packet cites Mont. Code Ann. § 31-1-106(1) (https://leg.mt.gov/bills/mca/31/1/31-1-201.htm).
Estimate your own result: every situation has exceptions that can change the outcome. Use the impact calculator to estimate your specific figure.
This page provides general legal information and calculation tools, not legal advice. DocketMath is not a law firm and does not provide legal representation, and using this site does not create an attorney-client relationship. Laws change and exceptions apply, so deadlines and amounts specific to your situation should be confirmed with a licensed attorney in your jurisdiction.