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 per accident. The Montana Motor Vehicle Division mandates SR-22 filing for drivers convicted of DUI, driving without insurance, repeat violations, or license suspensions related to driving offenses. Most speeding tickets and minor violations do not trigger SR-22 requirements but do add points to your record and increase insurance rates.
How Much Does Car Insurance Cost in Montana?
High-risk auto insurance in Montana costs $180–$400/mo depending on violation type, driver age, location, and coverage level. DUI convictions and SR-22 requirements produce the highest rate increases, often 100–200% above standard rates. Rates typically decrease after 1–3 years of continuous coverage and clean driving, with the steepest drops occurring when violations age off your record or SR-22 filing ends.
What Affects Your Rate
- Violation type: DUI and uninsured driving violations produce the highest rate increases in Montana, often doubling premiums
- SR-22 filing requirement: Adds 80–150% to standard rates due to elevated risk classification
- Location: Urban areas like Billings and Missoula see higher high-risk rates than rural counties due to accident frequency
- Age and experience: Drivers under 25 with violations pay 30–50% more than older high-risk drivers
- Coverage level: Full coverage costs 60–100% more than liability-only for the same high-risk profile
- Time since violation: Rates drop 10–20% annually after the first year of clean driving and continuous coverage
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Sources
- Montana Motor Vehicle Division – SR-22 Requirements and Financial Responsibility
- Montana Code Annotated § 61-6-301 – Motor Vehicle Financial Responsibility Act
- Montana Department of Insurance – Consumer Insurance Guide