Updated March 2026
State Requirements
Maine operates as an at-fault tort state, meaning the driver responsible for an accident is liable for damages. All drivers must carry proof of financial responsibility, typically satisfied through liability insurance meeting state minimums. The Maine Bureau of Insurance oversees enforcement, and registration requires proof of coverage through the state's electronic verification system.
Cost Overview
Maine's average insurance costs sit below the national median, influenced by low population density, a 4.9% uninsured motorist rate, and seasonal winter weather that increases claim frequency. Rates vary significantly between coastal cities and inland rural areas, with Portland averaging 25–35% higher premiums than Aroostook County due to theft rates and accident frequency.
What Affects Your Rate
- Winter weather drives rates up 8–12% statewide, with insurers pricing higher comprehensive premiums in counties reporting 60+ inches of annual snowfall including Aroostook, Piscataquis, and Somerset.
- Portland's theft rate of 147 motor vehicle thefts per 100,000 residents pushes comprehensive coverage 18–25% higher than state average, compared to just 42 thefts per 100,000 in Bangor.
- Rural drivers on Routes 201, 11, and 161 face moose collision risk, with Maine reporting 500–700 moose-vehicle crashes annually that average $5,000–$8,000 in vehicle damage per incident.
- Credit-based insurance scores affect rates by 30–50% in Maine, where state law permits their use — drivers with excellent credit pay approximately $600–$900 less annually than those with poor credit for identical coverage.
- Drivers under 25 pay 85–110% more than those aged 40–55, with young male drivers in Cumberland and York counties seeing the highest surcharges due to accident frequency on I-95 and coastal Route 1.
- Moving violations add 20–35% to premiums for three years, while at-fault accidents increase rates by 40–60% — a DUI conviction can raise annual costs by $1,200–$2,400 or result in policy non-renewal.
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Frequently Asked Questions
Sources
- Maine Bureau of Insurance (maine.gov/pfr/insurance) — minimum coverage requirements and SR-22 filing rules
- Insurance Research Council — uninsured motorist statistics by state
- Maine Department of Transportation — crash statistics and moose collision data