Montana Auto Insurance Rates & Requirements 2025

Montana requires 25/50/20 minimum liability coverage — $25,000 per person for bodily injury, $50,000 per accident, and $20,000 for property damage. Average full coverage costs $140–$180/month statewide, while minimum coverage runs $50–$75/month based on available industry data.

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Non-Standard Auto · SR-22 · Senior · Teen Drivers

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Updated May 2026

State Requirements

Montana operates under a traditional at-fault tort system, meaning the driver responsible for an accident is liable for damages. The state requires all drivers to carry proof of financial responsibility, typically satisfied through liability insurance meeting minimum limits. Montana law mandates electronic verification of insurance through the Montana Department of Justice Motor Vehicle Division, and driving uninsured can result in license suspension and reinstatement fees up to $250.

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25/50 ($25,000 per person, $50,000 per accident)
Bodily Injury Liability
Covers medical expenses, lost wages, and legal costs when you injure someone in an at-fault accident. Montana's minimum of $25,000 per person can be exhausted quickly in serious crashes—average emergency room visits for moderate injuries can exceed $15,000 before hospitalization. Given Montana's high rate of fatal and serious-injury crashes on rural highways, many drivers carry $100,000 per person or higher to protect personal assets.
$20,000 per accident
Property Damage Liability
Pays for vehicle repairs and property you damage in an at-fault crash. The $20,000 minimum barely covers the cost of totaling one new midsize vehicle, which averaged over $30,000 in 2024. Montana's abundance of wildlife collisions and winter weather multi-car pileups makes higher limits prudent for drivers who regularly travel I-90 or I-15 corridors.
Must be offered; can be rejected in writing
Uninsured/Underinsured Motorist Coverage
Protects you when hit by a driver with no insurance or insufficient coverage to pay your claim. Montana requires insurers to offer UM/UIM at the same limits as your liability coverage, but you can decline it in writing. With approximately 7% of Montana drivers uninsured and many carrying only state minimums, rejecting this coverage leaves you vulnerable to paying your own medical bills and lost income after a crash caused by someone else.
Not required
Personal Injury Protection (PIP)
Montana does not mandate PIP or medical payments coverage, unlike no-fault states. However, given the state's vast rural areas where emergency medical transport can exceed $10,000 for helicopter airlift to a Level I trauma center, optional medical payments coverage can bridge gaps in health insurance deductibles after serious collisions on remote highways.
State-Mandated Minimum Coverage · Montana

Montana Minimum Coverage

CoverageMinimum
Bodily Injury (per person)$25,000
Bodily Injury (per accident)$50,000
Property Damage$20,000

License Reinstatement Fee$100

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Cost Overview

Montana auto insurance rates reflect the state's low population density, high wildlife collision frequency, and severe winter driving conditions. Average premiums remain below the national median, but costs vary significantly between urban centers like Billings and rural counties where collision repair facilities are 50+ miles away. Distance-based rating and comprehensive claims from deer strikes impact rural drivers more than city residents.

What Affects Your Rate

  • Wildlife collision frequency adds $120–$180 annually to comprehensive premiums statewide, with deer strikes peaking September through November and causing an average of $4,000 damage per claim.
  • Billings drivers pay 15–22% less than rural county residents due to proximity to repair facilities and shorter emergency response times, despite higher theft rates in urban areas.
  • Winter driving conditions increase collision claim frequency 35–40% December through February statewide, particularly along mountain passes on US-93 and I-90 where black ice and whiteout conditions close roads multiple times per season.
  • Credit-based insurance scores impact Montana rates by 30–50% between excellent and poor tiers, as the state allows credit as a rating factor unless prohibited by future legislation.
  • Annual mileage over 15,000 miles increases premiums 12–18%, reflecting Montana's status as the fourth-largest state by area where commutes routinely exceed 50 miles one-way in eastern counties.
  • Teen drivers in Montana face premiums 180–220% higher than adult rates, with young male drivers under 21 paying $300–$450/month for full coverage due to the state's elevated fatal crash rate among 16–20 year-olds on rural highways.
Minimum Coverage
$50–$75/mo
Covers only the 25/50/20 state-required liability limits with no protection for your own vehicle. Suitable only for drivers with older vehicles worth under $3,000 who can afford to replace their car out-of-pocket.
Standard Coverage
$95–$135/mo
Includes 100/300/100 liability limits plus collision and comprehensive with a $500–$1,000 deductible. Represents the most common package purchased by Montana drivers financing vehicles or seeking asset protection beyond minimums.
Full Coverage
$140–$180/mo
Features 250/500/100 liability, $250–$500 collision and comprehensive deductibles, uninsured motorist coverage, and optional roadside assistance. Recommended for drivers with significant assets to protect or those regularly traveling Montana's I-15 and I-90 corridors where multi-vehicle crashes are common.

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