Minimum Coverage Requirements in Montana
Montana requires liability coverage with minimum limits of $25,000 bodily injury per person, $50,000 per accident, and $20,000 property damage (25/50/20). The Montana Motor Vehicle Division mandates SR-22 filing for DUI convictions, license suspensions for accumulating too many points, at-fault accidents while uninsured, and reinstatement after certain violations. SR-22 is a certificate your insurer files directly with the state proving you carry at least minimum coverage—it's not a separate insurance policy, but it marks you as high-risk and typically raises premiums significantly.
How Much Does Car Insurance Cost in Montana?
High-risk insurance in Montana costs $200–$400/mo for drivers with DUI, SR-22 requirements, or recent suspensions—roughly double to triple the $100–$150/mo standard rate for clean-record drivers. Violation type is the largest factor: DUI adds 80–150% to premiums, while a single at-fault accident adds 30–60%, and lapses in coverage add 25–50%. Montana's rural geography and long commute distances also raise rates because increased mileage correlates with higher accident risk in underwriting models.
What Affects Your Rate
- Violation type and severity—DUI increases premiums 80–150%, while at-fault accidents add 30–60% and suspended license adds 40–70%
- Time since violation—rates drop 10–20% after the first year clean, 20–40% after two years, and approach standard rates 3–5 years post-violation if no new incidents occur
- SR-22 filing duration remaining—some carriers offer slight discounts in the final year of the 3-year period if no claims or violations have occurred
- Annual mileage and commute distance—Montana's rural geography means longer average commutes, and drivers exceeding 15,000 miles/year pay 15–25% more in high-risk markets
- Credit-based insurance score—Montana allows credit as a rating factor, and high-risk drivers with poor credit pay 30–60% more than those with good credit for identical coverage
- Carrier specialization—non-standard specialists often quote 20–40% lower than standard carriers attempting to write high-risk business outside their core market
See how much your violation actually affects your rates
Not every carrier surcharges the same way. Compare quotes from carriers that rate violations differently.
Get Your Free QuoteCoverage Types
SR-22 Insurance
Proof-of-insurance filing required by Montana for DUI, suspensions, and uninsured incidents. Your insurer submits the SR-22 electronically to the Motor Vehicle Division and monitors compliance—any lapse triggers automatic suspension within 10 days.
Non-Standard Auto Insurance
Coverage from carriers specializing in high-risk drivers who cannot access standard market policies after violations. Non-standard insurers evaluate applications individually and accept SR-22 filings standard carriers reject.
Liability Insurance
Covers injuries and property damage you cause to others in an at-fault accident. Montana's 25/50/20 minimums are the legal floor but leave you personally liable for any damages exceeding those limits.
Full Coverage
Liability plus comprehensive and collision to protect your vehicle from damage, theft, weather, and accidents regardless of fault. Required by lenders for financed vehicles and recommended for newer cars with high replacement cost.
Uninsured Motorist Coverage
Pays for your injuries and vehicle damage when hit by a driver with no insurance or insufficient coverage. Not required in Montana but recommended given the state's above-average uninsured driver rate.
DUI Insurance
Auto insurance for drivers convicted of DUI or DWI in Montana, almost always requiring SR-22 filing and acceptance by a non-standard or high-risk carrier. Premiums remain elevated for 3–5 years after conviction even with clean driving post-DUI.
