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Total loss by formula

Car insurance claim rules in Montana

The 30-day payment rule a Montana insurer works under, how a car is judged a total loss, when to call the police, and how long you have to sue.

By Valoroath Editorial Team Updated 6 min read

In plain terms

Montana puts a firm number in statute: an insurer must pay or deny a claim within 30 days after it receives proof of loss, or within 60 days if it reasonably asks for more information or tells you why it isn't paying in full. A claim paid late carries 10% annual interest. Montana has no percentage that makes a car a total loss; a car is salvage when repairing it is uneconomical. You must notify police at once after a crash with an injury or damage that looks like $1,000 or more. Montana is an at-fault state, and you generally have 3 years to sue for injury and 2 years for property damage.

Total loss rule
Insurer's formula; no %
Insurer must decide
30 days after proof
Deadline to sue
3 yrs injury, 2 property
Fault system
At-fault
Map of the United States with Montana highlighted

Montana claim rules on one sheet

  1. Total loss rule No percentage in law; insurer's formula Salvage when the owner or insurer finds repair uneconomical (MCA 61-3-210, title law).
  2. Insurer must acknowledge No fixed number; 'reasonably promptly' (MCA 33-18-201)
  3. Insurer must decide Pay or deny 30 days after proof of loss; 60 if it asks for more or explains Late payment owes 10% annual interest. MCA 33-18-232.
  4. Deadline to sue 3 years for injury; 2 years for property damage
  5. Fault system At-fault; barred if more at fault than those you sue (51%)
  6. Police report needed At once if anyone is hurt or killed, or damage looks like $1,000 or more
  7. State crash report Written report in 10 days for injury or damage over $1,000, unless police reported it

A summary by Valoroath of the state's statutes and regulations, not an official document. The sources are listed at the end of this page.

The clock on a Montana claim

Montana's Unfair Trade Practices Act, section 33-18-201 of the Montana Code Annotated, forbids failing to acknowledge and act reasonably promptly on claim communications and failing to affirm or deny coverage within a reasonable time after proof of loss is complete. It sets no number of days for those steps. Section 33-18-232 does set one for the decision itself.

Montana claim payment rules in MCA 33-18-232
SituationPay or deny within
Proof of loss received, nothing more needed30 days
Insurer reasonably asks for more information60 days after proof of loss
Insurer tells you why it isn't paying in full60 days after proof of loss
Insurer reasonably suspects fraud and reports it to the commissioner60 days after proof of loss

If the insurer misses the deadline and owes the claim, it must pay the amount due plus 10% annual interest from the date the payment was due. Send your proof of loss in a way you can date, such as email or certified mail. Our page on claims that drag on covers what to do when the days run out.

When a Montana car is a total loss

Montana's title law uses no percentage. Section 61-3-210 defines a salvage vehicle as one damaged by collision, fire, flood or another event to the point that the owner, the insurer or someone acting for the owner decides the cost of parts and labor makes repair uneconomical. The decision rests on the insurer's own formula under your policy, usually repair cost plus the wreck's salvage value compared with the car's actual cash value.

  • Ask for the numbers. Request the repair estimate, the salvage value and the valuation report the insurer used.
  • Keeping the car usually means the settlement is reduced by its salvage value; the law calls this settling at a total loss less salvage.
  • Test the offer. What actual cash value should include is in total loss claims, and the total loss check runs the formula.

Reporting a Montana crash

Section 61-7-108 requires a driver who knows, or should know, of a crash that injures or kills someone or causes property damage that looks like $1,000 or more to notify police at once by the quickest means: the local police department in a city or town, or otherwise the county sheriff or the nearest Highway Patrol office.

Section 61-7-109 adds a written report from the driver within 10 days of a crash with an injury, a death or property damage over $1,000. You don't have to file it if a law enforcement officer investigated and reported the crash. If an officer came, ask for the report number; your insurer will want it.

Fault and who pays

Montana is an at-fault state: the driver who caused the crash, through their liability insurance, pays for the injuries and damage they caused. Under section 27-1-702, your own negligence doesn't bar recovery if it was not greater than the combined negligence of those you seek to recover from, and your damages drop by your percentage. At 51% fault you recover nothing from them.

A claim against the other driver's insurer is covered in liability claims against the other driver. While fault is argued, your own collision coverage can repair the car and seek the money back later.

Deadlines to sue and where to complain

Section 27-2-204 gives 3 years for a tort claim such as a crash injury, and section 27-2-207 gives 2 years for injury to property, which includes damage to your car. Your policy may add its own time limits.

  1. Ask the insurer in writing why it denied or cut the claim and which policy terms it relies on.
  2. Call the Commissioner of Securities and Insurance (CSI), part of the Montana State Auditor's office, toll-free at 800-332-6148 or at 406-444-2040.
  3. File a complaint in writing or online; CSI accepts complaints only in those forms. Our guide to insurance department complaints shows what to include.

Questions people ask

How long does a Montana insurer have to pay a car insurance claim?

It must pay or deny the claim within 30 days after receiving proof of loss, or within 60 days if it reasonably asks for more information or explains why it isn't paying in full. Late payment carries 10% annual interest.

What percentage of damage totals a car in Montana?

None is set in law. A car is a salvage vehicle when the owner or insurer decides repair is uneconomical, which the insurer judges with its own formula.

When do I have to report a crash in Montana?

Notify police at once if anyone is hurt or killed or property damage looks like $1,000 or more. You must also file a written report within 10 days unless an officer investigated and reported the crash.

How long do I have to sue after a car accident in Montana?

Generally 3 years for injury claims and 2 years for damage to your car or other property.

Sources on record

Facts on this page were checked against these sources on November 11, 2026, in the 2025 Montana Code Annotated. A version of section 27-2-204 that took effect October 1, 2026 keeps the same time periods.

Ask a licensed agent to review your coverage

After a claim, the policy you had is the one you can still change. Describe your situation and Valoroath passes it to licensed insurance agents and insurers who can review your coverage and quote, if you want them to. Valoroath itself does not sell insurance or handle claims.

  1. 1 Five questions about your car, your record and your policy.
  2. 2 Who to ask for, and your consent to be contacted.
  3. 3 A licensed insurance agent or insurer reviews what you have. You change nothing unless you choose to.

Step 1 of 2

Your car, your record, your policy
Accidents or claims in the last 3 years
Cars on the policy
What you carry now

Sending this request shares your answers and contact details with the licensed insurance agents and insurers who receive it, which some state privacy laws treat as a sale; see your privacy choices. An agent reviews your coverage; they can't take on your claim or a dispute with your insurer. You pay Valoroath nothing. The licensed insurance agents and insurers who contact you pay Valoroath for requests and set their own prices and terms; your claim stays with your insurer. How we make money.