Average Car Insurance Premium — Maine

Car salesman handing keys to happy young couple at dealership showroom
7/15/2026 · 7 min read · Published by Maine Car Insurance Requirements

What Maine Households Pay for Multiple Vehicles

You own two cars, maybe three, and you need to know whether putting them all on one policy costs less than keeping separate policies. The answer depends on how Maine carriers structure the multi-car discount and whether your household qualifies for it. Most carriers require every vehicle to sit on the same policy and share a garaging address before the discount applies.

Maine law requires minimum liability coverage of $50,000 per person, $100,000 per accident for bodily injury, and $25,000 for property damage. The state also mandates personal injury protection and uninsured motorist coverage. When you insure multiple vehicles, each one must meet these minimums, but the total cost depends on whether the carrier applies the multi-car discount to the combined policy or rates each vehicle separately.

A smaller discount on a lower base rate can beat a larger discount on a higher one.

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Maine Annual Auto Insurance Expenditure per Vehicle

$1,749.22

This figure represents the average annual expenditure per insured vehicle in Maine as of 2023. Your household's total cost for multiple vehicles depends on how many cars you insure, the coverage levels you select, and whether the multi-car discount applies.

NAIC Auto Insurance Database Report 2023

How the Multi-Car Discount Changes Total Cost

The multi-car discount reduces the combined premium when you insure two or more vehicles on the same policy. Most Maine carriers require every vehicle to be titled to the same household, garaged at the same address, and listed on one policy before the discount applies. If you own three cars but one is titled to a household member on a different policy, that vehicle does not count toward the multi-car discount on your policy.

Combining policies after marriage or when a household member moves in usually lowers the total premium, but not always. A carrier may re-rate the entire policy when you add a vehicle, and if the newly-added car or driver carries higher risk, the combined premium can exceed the sum of the two separate policies. The multi-car discount offsets part of that increase, but it does not guarantee savings in every scenario.

The discount applies to the policy, not to each vehicle individually. Some carriers reduce the premium on the second and third vehicles; others reduce the base rate for the entire policy. Either way, the discount only appears when every vehicle sits on the same policy. Splitting vehicles across two policies forfeits the discount entirely, even if both policies are with the same carrier.

The multi-car discount requires every vehicle on one policy. A car titled to someone outside the household or on a separate policy does not qualify.

What Drives Cost Differences Across Carriers

Car salesperson handing keys to happy senior couple in dealership showroom
Maine carriers price multi-vehicle policies differently based on how they weight risk factors and structure the multi-car discount. Understanding these differences helps you compare carriers accurately.

Carriers weigh driving history, vehicle type, garaging location, and coverage selections differently. One carrier may offer a larger multi-car discount but charge a higher base rate; another may offer a smaller discount on a lower base rate. A smaller discount on a lower base rate can beat a larger discount on a higher one, so comparing the final combined premium matters more than comparing discount percentages.

Maine allows carriers to use credit-based insurance scores, which means your credit history affects your premium. Carriers also consider the number of licensed drivers in the household, the age and value of each vehicle, and whether you bundle auto with home or renters insurance. Adding a teenage driver or a high-performance vehicle re-rates the entire policy, not just the newly-added car.

When Separate Policies Cost Less Than One Combined Policy

Separate policies sometimes cost less than one combined policy when the household includes a high-risk driver or a vehicle that triggers a surcharge. If one driver has a DUI conviction or multiple at-fault accidents, isolating that driver on a separate policy prevents their risk profile from re-rating the entire household's vehicles. The household loses the multi-car discount, but the total cost across both policies can still be lower.

Roommates who share a residence but are not related face the same decision. Most carriers require all household members with access to the vehicles to be listed on the policy, which means a roommate's driving record affects your premium even if they never drive your car. Some carriers allow roommates to maintain separate policies at the same address; others require everyone to be on one policy or formally excluded. Formal exclusion removes the roommate from coverage entirely, which means they cannot drive any vehicle on the policy.

Classic cars, rarely-driven vehicles, and seasonal vehicles sometimes cost less to insure on a separate specialty policy than on the household's primary policy. Specialty policies offer lower premiums for vehicles driven fewer than a certain number of miles per year, but they do not count toward the multi-car discount on the primary policy.

Carriers Writing Auto Insurance in Maine

16

Maine drivers can compare quotes from 16 carriers that write standard, preferred, and non-standard auto insurance in the state. Carriers price multi-vehicle policies differently, so comparing at least three quotes helps you find the lowest combined premium for your household's vehicles.

Maine Bureau of Insurance carrier roster

How Adding or Removing a Vehicle Re-Rates the Policy

Adding a vehicle mid-term re-rates the entire policy rather than simply adding a flat amount. The carrier recalculates the premium for every vehicle on the policy based on the new total number of vehicles, the newly-added vehicle's characteristics, and whether the multi-car discount tier changes. If you add a third vehicle and the carrier offers a larger discount at three vehicles than at two, the premium for all three vehicles may be lower than the premium for the original two vehicles plus the cost of the third.

Removing a vehicle from the policy also re-rates the remaining vehicles. If you drop from three vehicles to two, you lose the three-vehicle discount tier and the premium for the remaining two vehicles increases. The increase is usually smaller than the cost of the removed vehicle, but it is not zero. Notify the carrier immediately when you sell or stop driving a vehicle to avoid paying for coverage you do not need.

Compare Carriers That Write Multi-Vehicle Policies in Maine

Fifteen carriers write auto insurance for Maine households insuring multiple vehicles, including Allstate, Geico, Progressive, State Farm, Farmers, Liberty Mutual, Nationwide, Travelers, USAA, The Hartford, National General, Dairyland, Bristol West, The General, and Amica. Each carrier prices the multi-car discount differently and weighs risk factors differently, so the lowest combined premium varies by household.

Request quotes from at least three carriers and compare the final combined premium for all your vehicles, not just the discount percentage. Provide the same coverage selections, deductibles, and driver information to each carrier so the quotes are comparable. Some carriers offer online quotes; others require a phone call or an agent. USAA restricts eligibility to military members, veterans, and their families. Compare the total annual or monthly premium, not the per-vehicle cost, because the multi-car discount applies to the policy as a whole.