Updated April 2026
Minimum Coverage Requirements in Montana
Montana requires minimum liability coverage of 25/50/25: $25,000 bodily injury per person, $50,000 bodily injury per accident, and $25,000 property damage. Drivers convicted of DUI, driving without insurance, causing an uninsured accident, or accumulating multiple serious violations typically must file SR-22 proof of financial responsibility with the Montana Motor Vehicle Division. The SR-22 filing requirement usually lasts 3 years from the date of reinstatement, and any lapse in coverage during that period resets the clock.
How Much Does Car Insurance Cost in Montana?
High-risk insurance premiums in Montana reflect both the underlying violation and the SR-22 filing requirement. DUI convictions typically increase premiums by 80–150%, while multiple at-fault accidents or uninsured driving violations add 50–100% to standard rates. Montana's rural geography and harsh winter conditions further elevate claim costs, which non-standard carriers price into high-risk policies.
What Affects Your Rate
- Violation type: DUI convictions typically add $1,200–$2,400/year; multiple at-fault accidents add $800–$1,800/year; uninsured driving violations add $600–$1,500/year
- Time since violation: Rates drop 10–20% at the 3-year mark when SR-22 requirement ends, then gradually decline toward standard rates over 5–7 years with clean driving
- Location: Billings and Missoula urban drivers pay 10–20% more than rural Montana counties due to higher claim frequency and repair costs
- Credit score: Montana allows credit-based insurance scoring; poor credit can add 20–50% to high-risk premiums on top of violation surcharges
- Vehicle type: Comprehensive and collision premiums increase with vehicle value; insuring a $40,000 truck with SR-22 can cost $400–$600/mo versus $250–$350/mo for a $15,000 sedan
- Payment method: Monthly installment plans often include 5–10% financing fees; paying in full at policy inception can save $150–$400 annually
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Sources
- Montana Motor Vehicle Division – SR-22 Requirements and Reinstatement Procedures
- Montana Department of Insurance – Minimum Liability Coverage Standards
- Montana Code Annotated § 61-6-301 – Proof of Financial Responsibility