National General Car Insurance — Montana

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7/15/2026 · 6 min read · Published by Montana Car Insurance Requirements

National General Writes Montana Multi-Car Policies

National General operates in Montana and writes policies covering two or more vehicles under one household policy. The carrier is licensed statewide through NAIC group 008 and maintains an AM Best A+ rating inherited from its Allstate parent group. National General writes standard-tier auto insurance and explicitly covers SR-22 filings, non-owner policies, and after-DUI placements, which signals capacity for households with mixed driving records across multiple drivers.

Montana households insuring multiple vehicles face a specific structural question: whether to place every car on one shared policy or maintain separate policies per vehicle. National General's multi-car product requires every vehicle to sit on the same policy and share a garaging address to qualify for the household discount. If one vehicle is titled to a household member at a different address or garaged separately, that vehicle typically requires its own policy, and the household loses the multi-car discount on the remaining vehicles.

National General requires proof that every vehicle on the policy is garaged at the same address before issuing the multi-car discount.

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Montana Multi-Car Roster

16 carriers

Sixteen carriers write multi-car policies in Montana, including National General, State Farm, Geico, Progressive, Farmers, USAA, Allstate, and Liberty Mutual. Households comparing carriers should request quotes from at least three to surface the best combination of base rate and household discount structure.

Montana carrier roster, 2025

How National General Structures the Multi-Car Discount

National General applies a multi-vehicle discount when two or more cars sit on the same policy. The discount reduces the total premium compared to insuring each vehicle separately, but the exact percentage varies by state, garaging location, and the number of vehicles. National General does not publish a fixed discount rate, and the actual savings depend on each vehicle's base premium before the discount applies.

The structural requirement: every vehicle must be titled to a member of the same household and garaged at the same address. If you own three cars but one is garaged at a vacation property or titled to an adult child living elsewhere, that vehicle does not qualify for the same-policy discount. National General treats it as a separate risk and typically requires a standalone policy.

When you add a vehicle mid-term, National General re-rates the entire policy rather than simply adding a flat amount. The new vehicle's characteristics affect the household discount calculation, and in some cases adding a high-value or high-risk vehicle can reduce the per-vehicle discount percentage even as the total premium rises. This re-rating happens immediately upon adding the vehicle, not at renewal.

National General requires proof that every vehicle on the policy is garaged at the same address. A vehicle titled to your household but garaged elsewhere typically disqualifies the multi-car discount.

Documentation National General Requires for Multi-Car Policies

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National General verifies household structure and garaging location before issuing a multi-car policy. Missing or inconsistent documentation delays binding and can disqualify the household discount.

National General requires the vehicle identification number, title or registration showing the registered owner's name and address, and proof that the garaging address matches the policy address for every vehicle. If you recently moved or transferred a title, bring the updated registration showing the current address. A vehicle titled to one household member but registered at a different address raises a verification flag and may require a separate policy.

For households with multiple drivers, National General requires each driver's license number, date of birth, and driving history. If a household member drives one vehicle exclusively, National General may assign that driver to that vehicle for rating purposes, which can lower the total premium if the assigned driver has a clean record. If drivers share vehicles interchangeably, National General rates each vehicle assuming the highest-risk driver in the household has access to it, which raises the premium.

How National General Compares to Other Montana Multi-Car Carriers

National General competes in Montana's standard-tier market alongside State Farm, Geico, Progressive, Farmers, and Allstate. State Farm and USAA typically offer the largest multi-car discounts for households with clean driving records, but both carriers restrict eligibility: State Farm through agent discretion, USAA through military-affiliation requirements. National General accepts a broader range of driving histories, including households with one or more drivers carrying recent violations.

Geico and Progressive write Montana multi-car policies with online quoting and binding, which speeds the process when you need coverage immediately. National General also offers online quoting, but binding a multi-car policy with more than two vehicles or with drivers carrying violations often requires a phone call to verify documentation. If you're adding a third or fourth vehicle, expect National General to request proof of garaging and title for every car before finalizing the policy.

Carriers structure the multi-car discount differently. A smaller discount on a lower base rate can produce a lower total premium than a larger discount on a higher base rate. National General's base rates vary by ZIP code within Montana, and households in Billings, Missoula, and Great Falls often see different premiums for identical coverage. Request quotes from National General, State Farm, Geico, and Progressive to compare the actual dollar premium after the multi-car discount applies, not the advertised discount percentage.

Montana Minimum Liability Limits

$25,000 / $50,000 / $20,000

Montana requires minimum liability coverage of $25,000 per person for bodily injury, $50,000 per accident, and $20,000 for property damage. Every vehicle on a multi-car policy must carry at least these minimums, but households insuring multiple vehicles often choose higher limits to protect household assets in the event of an at-fault accident.

Montana state minimum liability requirements

When National General Requires Separate Policies

National General requires a separate policy when a vehicle is titled to someone outside the household, garaged at a different address, or used for commercial purposes. If you own a personal vehicle and a work truck, the work truck typically requires a commercial auto policy, not a personal multi-car policy. If an adult child living at a different address owns a car, that car cannot sit on your household policy even if you pay the premium.

Montana households combining policies after marriage or a move face a specific timing window. National General allows you to combine two existing policies into one multi-car policy at any time, but the effective date of the combined policy determines when the household discount applies. If you combine mid-term, National General re-rates both vehicles immediately and issues a new policy number. If you wait until renewal, you avoid mid-term re-rating but delay the discount by several months.

Compare National General Against Montana's Multi-Car Roster

National General is one of sixteen carriers writing multi-car policies in Montana. The carrier's strength is breadth of acceptance: National General writes households with mixed driving records, recent violations, and vehicles that other standard-tier carriers decline. If one driver in your household has a DUI or suspended-license history, National General often quotes when State Farm or USAA will not.

Request quotes from at least three carriers. National General's online quoting tool generates a preliminary premium estimate, but binding a multi-car policy with more than two vehicles or with drivers carrying violations requires documentation verification by phone. State Farm, Geico, and Progressive also write Montana multi-car policies and offer online quoting. Montana's liability minimums and carrier roster provide the baseline for comparing coverage across carriers. The carrier with the lowest total premium after the multi-car discount applies wins, not the carrier advertising the largest discount percentage.