Montana Minimum Car Insurance Requirements (2026)
Montana requires every registered vehicle to carry at least 25/50/20 liability car insurance: $25,000 for bodily injury per person, $50,000 for bodily injury per accident, and $20,000 for property damage, as set by Montana Code Annotated 61-6-103. Montana is an at-fault (tort) state and does not mandate no-fault PIP coverage.
Montana's minimum liability limits explained
Under Montana Code Annotated 61-6-103, every motor vehicle registered and operated in the state must be covered by a liability policy that meets three separate minimum limits, commonly written as 25/50/20:
- $25,000 bodily injury per person — the most your insurer will pay for injuries to any one person you hurt in an at-fault crash.
- $50,000 bodily injury per accident — the total your insurer will pay for all injuries in a single accident when two or more people are hurt.
- $20,000 property damage per accident — the most your insurer will pay for damage you cause to another person's vehicle or property.
These figures are the floor, not a recommendation. They only pay for the other party's injuries and property. They do nothing to repair your own car, cover your own medical bills, or protect you if the at-fault driver has no insurance. Montana has held these baseline limits for many years, and they remain in effect for 2026.
Montana is an at-fault (tort) state
Montana follows a traditional at-fault, or tort, liability system. That means the driver who causes a crash is financially responsible for the resulting injuries and property damage, and their liability insurance pays the other parties. Montana is not a no-fault state, so it does not require Personal Injury Protection (PIP) the way Minnesota, North Dakota, or Hawaii do.
After a collision, an injured person can seek payment directly from the at-fault driver's insurer, file a claim through their own coverage, or pursue a civil lawsuit. Because fault drives who pays, documentation such as a police report, photos, and witness statements matters. Montana also uses modified comparative negligence: if you are found partly at fault, your recovery is reduced by your share of fault, and you generally cannot recover if you are more than 50 percent responsible.
Key data
| Factor | Filed value | Source |
|---|---|---|
| Minimum bodily injury liability per person | $25,000 | Insurance Information Institute (III) — Financial Responsibility Laws · Jul 2026 |
| Minimum property damage liability per accident | $20,000 | Insurance Information Institute (III) — Financial Responsibility Laws · Jul 2026 |
| Montana average auto insurance expenditure as a percent of median household income (2021) | 1.30% | Insurance Information Institute (III) — Facts + Statistics: Auto Insurance · Jul 2026 |
| Maximum fine for driving without insurance (first offense) | $500 | Montana Legislature (Montana Code Annotated 61-6-304) · Jul 2026 |
Required and optional coverages in Montana
The only coverage the state requires is 25/50/20 bodily injury and property damage liability. Montana does not mandate PIP, medical payments, collision, or comprehensive coverage.
Montana law does require insurers to offer uninsured motorist (UM) and underinsured motorist (UIM) coverage when you buy a liability policy, but you may reject it in writing. Given how many drivers on rural highways carry no insurance, keeping UM/UIM is one of the smartest optional add-ons you can buy. Other coverages worth considering:
- Collision — repairs your own vehicle after a crash regardless of fault.
- Comprehensive — covers theft, hail, fire, and animal strikes, which are common in Montana.
- Medical payments (MedPay) — helps with your own and passengers' medical bills.
If you finance or lease your vehicle, your lender will almost always require collision and comprehensive on top of the state minimum.
Penalties for driving without insurance
Driving an uninsured vehicle in Montana is a misdemeanor, and the state actively verifies coverage through its electronic insurance verification system tied to vehicle registration. Penalties escalate with each offense:
- First offense — a fine and potential citation; you must show proof of insurance to resolve the charge.
- Second and subsequent offenses — higher fines, possible jail time, and suspension of your driver license and vehicle registration until you provide proof of coverage.
Beyond fines, an uninsured driver who causes a crash is personally liable for every dollar of the other party's injuries and property damage — an exposure that can reach tens or hundreds of thousands of dollars. A lapse also makes it harder and more expensive to buy a new policy, because insurers treat a coverage gap as a risk signal. Always keep continuous coverage and carry proof of insurance in the vehicle.
SR-22 in Montana: when it is required and for how long
An SR-22 is not insurance — it is a certificate your insurer files with the Montana Department of Justice, Motor Vehicle Division (MVD) to certify that you carry at least the 25/50/20 minimum. Montana requires an SR-22 after serious violations such as a DUI conviction, driving without insurance, causing an at-fault crash while uninsured, or a related license or registration suspension or revocation.
The filing generally must be maintained for three years of continuous coverage. If your policy cancels or lapses during that period, the insurer files an SR-26 cancellation notice, which alerts the MVD, can trigger another suspension, and may restart the three-year clock. Because not every carrier offers SR-22 filings, compare insurers that specialize in high-risk drivers. Montana does not use any special variant such as an "SR-22A"; there is one standard SR-22 form.
Why the state minimum is rarely enough
The 25/50/20 minimum is a legal floor, and modern accident costs routinely blow past it. A single hospital stay, surgery, or a totaled late-model truck can exceed $25,000 or $20,000 on its own. If the damages you cause are higher than your limits, you pay the difference out of pocket, and the injured party can sue you for the shortfall, potentially reaching your wages and assets.
Many Montana drivers step up to 100/300/100 limits, which cost far less than most people expect because liability coverage is relatively inexpensive per dollar of protection. Pairing higher liability with uninsured/underinsured motorist coverage protects you against the large share of drivers on Montana roads who carry no coverage at all. If you own a home or have savings, an umbrella policy adds another layer above your auto limits.
How to compare Montana car insurance the right way
Rates for the exact same driver can vary by hundreds of dollars between carriers, so comparison shopping is the single best way to cut your premium. To compare accurately:
- Quote identical coverage — use the same liability limits, deductibles, and add-ons across every carrier so you are comparing apples to apples.
- Ask about discounts — bundling home and auto, safe-driver, good-student, multi-vehicle, and paid-in-full discounts stack quickly.
- Check financial strength and complaints — a cheap policy is worthless if the insurer is slow to pay claims; review complaint data before you buy.
- Re-shop after life changes — a move, a new vehicle, an added driver, or an aging violation can all change your best option.
Confirm any policy actually meets or exceeds Montana's 25/50/20 requirement before you sign, and keep your proof of insurance current in the vehicle and in the state verification system.
Reinstating a suspended license or registration
If your Montana license or registration is suspended for a coverage lapse or a serious violation, reinstatement usually requires proof of valid insurance, payment of any reinstatement fees, and, when ordered, an SR-22 filing submitted by your insurer to the MVD. The exact steps depend on the underlying offense — an uninsured-driving suspension is resolved differently than a DUI-related revocation.
The general rule is simple: you must demonstrate to the Motor Vehicle Division that you now carry at least the state minimum liability coverage and will maintain it. Because a second SR-26 lapse can reset the clock and re-suspend your privileges, set up automatic payments and avoid any gap once you are reinstated. When in doubt about your specific case, contact the Montana MVD or the Commissioner of Securities and Insurance directly rather than relying on secondhand summaries.
Frequently asked questions
What is the minimum car insurance required in Montana?
Montana requires liability limits of at least 25/50/20: $25,000 for bodily injury per person, $50,000 for bodily injury per accident, and $20,000 for property damage per accident, as set by Montana Code Annotated 61-6-103. This liability coverage is the only insurance the state mandates.
Is Montana a no-fault state?
No. Montana is an at-fault (tort) state, so the driver who causes a crash is responsible for the other party's injuries and property damage through their liability coverage. Montana does not require no-fault Personal Injury Protection (PIP) coverage.
Does Montana require uninsured motorist coverage?
Insurers must offer uninsured motorist (UM) and underinsured motorist (UIM) coverage when you buy a liability policy, but you can reject it in writing. It is not mandatory, though it is strongly recommended given the number of uninsured drivers on Montana roads.
Does Montana use SR-22 filings, and for how long?
Yes. After offenses such as a DUI, driving without insurance, or a license or registration suspension, your insurer files an SR-22 certificate with the Montana Department of Justice, Motor Vehicle Division. It generally must be maintained for three years of continuous coverage; a lapse triggers an SR-26 notice that can restart the period.
What happens if I drive without insurance in Montana?
Driving uninsured is a misdemeanor. A first offense brings a fine, and repeat offenses can add higher fines, possible jail time, and suspension of your license and registration until you show proof of coverage. You also remain personally liable for any damages you cause while uninsured.
Is the Montana minimum coverage enough?
For most drivers, no. The 25/50/20 minimum only pays for the other party's losses and can be exhausted by a single serious injury or a totaled vehicle. Higher limits such as 100/300/100 plus uninsured/underinsured motorist coverage offer far better protection for a modest increase in premium.
Sources cited
- Insurance Information Institute (III) — Financial Responsibility Laws — captured Jul 2026
- Montana Legislature (Montana Code Annotated 61-6-304) — captured Jul 2026
- Montana Commissioner of Securities and Insurance (State DOI) — captured Jul 2026
- Montana Motor Vehicle Division — Vehicle Insurance and Verification — captured Jul 2026
- National Association of Insurance Commissioners (NAIC) — Auto Insurance — captured Jul 2026
