Montana Car Accident Laws: Fault, Insurance, and Your Claim

Montana is an at-fault (tort) state that follows modified comparative negligence with a 51% bar, so the at-fault driver's liability insurer pays your damages and you can recover as long as you are 50% or less at fault, with your award reduced by your share of fault.

Is Montana a no-fault or at-fault state?

Montana is a traditional at-fault (tort) state. When you are injured in a car accident, you pursue compensation through the at-fault driver's liability insurance, not through your own personal injury protection policy. Montana has never adopted a no-fault regime, and there is no statutory PIP requirement forcing injured drivers to look to their own insurer first.

Because Montana imposes no no-fault threshold, there is no verbal or monetary bar you must clear before suing for non-economic damages like pain and suffering. Any injured party may bring a third-party liability claim against the at-fault driver for all damages from the moment of the crash. PIP coverage is not required in Montana. You may optionally purchase Medical Payments (Med-Pay) coverage through your own insurer to cover immediate medical costs regardless of fault, but no PIP or Med-Pay is mandated by state law. Recovery for injuries runs through the at-fault driver's bodily-injury liability coverage, plus your own optional UM/UIM or MedPay if you carry it.

How fault is shared: Montana's negligence rule

Montana follows modified comparative negligence with a 51% bar, codified at MCA 27-1-702. Under this rule, a court assigns each party a percentage of fault for the accident. If your share of fault is 50% or less, you can recover damages, but your award is reduced by your own percentage of fault. If you are found 51% or more at fault, you are completely barred from any recovery.

This rule has significant consequences in multi-car crashes and cases where both drivers share some blame. For example, if a jury awards $80,000 but finds you 25% at fault, you receive $60,000. If the jury finds you 51% at fault, you recover nothing. Insurance adjusters routinely use comparative-fault arguments to reduce offers, so understanding your actual share of responsibility matters before you accept any settlement. The 51% bar (as opposed to the 50% bar used in some states) means you can still recover even if you are equally at fault with the other driver, which is a marginally more plaintiff-friendly threshold.

Minimum car insurance in Montana

Montana law requires all drivers to carry minimum liability coverage of 25/50/20 under MCA 61-6-103(1)(b). That means at least $25,000 for bodily injury or death to any one person, $50,000 for bodily injury or death to all persons in any one accident, and $20,000 for property damage in any one accident. Note that Montana's property-damage minimum is $20,000, which is slightly lower than many states' $25,000 baseline, but higher than some others.

Uninsured motorist (UM) coverage is mandatory in Montana: under MCA 33-23-201, every motor-vehicle liability policy issued in the state must include UM coverage at limits no less than the MCA 61-6-103 liability minimums unless the named insured rejects the coverage. The statute gives the named insured a plain right to reject UM coverage and does not itself impose a written-rejection formality. The only writing it mentions runs the other way: once you have rejected UM coverage, the insurer need not provide it on a renewal policy unless you request the coverage in writing. Underinsured motorist (UIM) protection is not required by this statute; where UIM coverage exists, it is typically an optional, contract-based add-on rather than a state-mandated minimum. Given that uninsured and underinsured drivers remain a real risk on Montana roads, keeping UM coverage in place, and adding UIM coverage where it is offered, is a practical safeguard. Med-Pay coverage is also available as an optional first-party protection for medical expenses regardless of fault, but it is not required.

How long you have to file: the statute of limitations

Montana gives car-accident victims three years to file a bodily-injury lawsuit arising from a motor-vehicle collision, under MCA 27-2-204 (tort actions, general and personal injury). Damage to your vehicle runs on a shorter clock. MCA 27-2-207, titled Injuries involving property, prescribes two years for an action for injury to real or personal property and for taking, detaining, or injuring any goods or chattels, and that specific provision controls the vehicle-damage claim.

Because the two deadlines differ, one filing date does not cover both claims. A property-damage suit filed in year three is time-barred even though the injury suit filed the same day is timely.

The clock generally starts running on the date of the crash. Waiting too long is fatal to your case: even one day past the deadline gives the defendant grounds to have your lawsuit dismissed entirely. If your accident involved a government vehicle or a government employee driving on duty, shorter notice-of-claim deadlines under Montana's governmental immunity statutes may apply, so consult an attorney promptly if a government entity was involved. For a broader look at Montana's civil filing deadlines, see the Montana statute of limitations page.

What a Montana car accident claim is worth

The value of a Montana car accident claim depends on your actual economic losses plus non-economic damages, offset by your share of comparative fault under MCA 27-1-702. Economic damages include medical bills (past and future), lost wages, loss of future earning capacity, and property damage. Non-economic damages cover pain and suffering, emotional distress, loss of enjoyment of life, and inconvenience.

Montana does not impose a statutory cap on non-economic (pain and suffering) damages in ordinary car accident cases, which is favorable for seriously injured plaintiffs. In practice, the at-fault driver's minimum 25/50/20 policy often determines how much money is actually available after a serious crash. If the at-fault driver is uninsured or underinsured, your own UM/UIM coverage fills the gap up to your own policy limits. Montana's 51% comparative-fault bar means any contributory negligence on your part directly reduces your net recovery, but you are not barred unless you are more than half responsible. Use the Montana car accident settlement calculator to estimate a range based on your specific facts.

What to do after a car accident in Montana

The steps you take immediately after a collision can protect both your health and your legal rights. First, move to safety if possible and call 911. Montana law requires you to report accidents resulting in injury, death, or significant property damage to law enforcement. While waiting for police, check on all parties and do not admit fault or apologize, since any statements can be used against you later.

Document the scene thoroughly. Take photos of vehicle positions, damage, skid marks, traffic controls, and any visible injuries. Collect names, contact information, insurance details, and driver's license numbers from all drivers involved, plus contact information from witnesses. If officers respond, get the report number. Seek medical attention as soon as possible, even if you feel fine initially, because symptoms of whiplash, concussion, or soft-tissue injuries often appear hours or days later. Gaps in medical care give insurers grounds to argue your injuries were not serious or were caused by something else. Before you give a recorded statement or accept an offer, let a Montana car accident lawyer deal with the at-fault driver's insurer after a free claim review (attorney advertising). Many attorneys offer a free initial consultation, and accepting an early offer may permanently release all future claims.

This article is general legal information, not legal advice. Car accident law varies by state and changes, and settlement values depend on the specific facts. For advice about a specific crash, consult a licensed attorney in Montana.

Related pages: Montana Car Accident Settlement Calculator | Montana Hit-and-Run Laws | Car Accident Laws by State | Montana Statute of Limitations

More Montana Laws

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• Montana Hit and Run Laws
• Montana Slip and Fall Laws
• Montana Statute of Limitations
• Montana Workers Compensation Laws

Frequently Asked Questions

Is Montana a no-fault state?

No. Montana is a traditional at-fault (tort) state. There is no no-fault statute and no mandatory PIP coverage. When you are injured in a crash, you recover from the at-fault driver's liability insurer. There is no injury threshold to cross before suing for pain and suffering.

Is Montana an at-fault state for car accidents?

Yes. Montana is an at-fault (tort) state. The injured driver pursues a third-party liability claim against the driver who caused the accident. The at-fault driver's insurer is responsible for paying bodily-injury and property-damage claims up to policy limits.

What is the statute of limitations for a car accident in Montana?

Three years from the date of the accident for a bodily-injury claim, under MCA 27-2-204. A claim for damage to your vehicle or other property is shorter: MCA 27-2-207 allows two years. Missing either deadline will almost certainly bar that part of your lawsuit entirely.

Can I still recover if I was partly at fault in Montana?

Yes, as long as you are 50% or less at fault. Montana follows modified comparative negligence with a 51% bar under MCA 27-1-702. Your damages are reduced proportionally by your percentage of fault. If you are found 51% or more at fault, you recover nothing.

What are the minimum insurance requirements in Montana?

Montana requires minimum liability coverage of 25/50/20: $25,000 per person for bodily injury, $50,000 per accident for bodily injury, and $20,000 for property damage (MCA 61-6-103). UM coverage at matching limits must be included unless the named insured rejects it, which MCA 33-23-201 expressly permits; UIM coverage is not mandated by this statute and is typically an optional add-on.

How much is my Montana car accident claim worth?

It depends on your economic losses (medical bills, lost wages, property damage) and non-economic losses (pain and suffering, emotional distress), reduced by your share of comparative fault. Montana does not cap non-economic damages in ordinary car accident cases. Use the Montana car accident settlement calculator for an estimate based on your specific facts.

Is PIP required in Montana?

No. Montana does not require personal injury protection (PIP). There is no no-fault statute requiring PIP. Drivers may optionally purchase Medical Payments (Med-Pay) coverage to cover immediate medical expenses regardless of fault, but no PIP or Med-Pay is mandated by Montana law.