Montana uninsured motorist coverage is optional for drivers but mandatory for insurers to offer. Under Montana Code 33-23-201, no auto liability policy can be issued or renewed in the state without including uninsured motorist (UM) coverage or giving you a clear chance to add it.1Montana State Legislature. Montana Code 33-23-201 – Motor Vehicle Liability Policies To Include Uninsured Motorist Coverage — Rejection By Insured The minimum limits track Montana’s liability minimums: $25,000 per person and $50,000 per accident for bodily injury, plus $20,000 for property damage.2Montana State Legislature. Montana Code 61-6-103 – Motor Vehicle Liability Policy Minimum Limits — Other Requirements You can accept those limits, buy higher ones, or sign away the coverage entirely.
What UM Coverage Pays For
UM coverage pays you when the driver who caused your accident either carries no liability insurance or can’t be identified. Instead of chasing an uninsured driver who likely has nothing to collect, you file a claim under your own policy. It applies to bodily injury, and depending on how your policy is written, may also cover damage to your vehicle.
The statute defines an “uninsured motor vehicle” as any land motor vehicle whose ownership, maintenance, or use isn’t insured or bonded for bodily injury liability at the time of the crash.3Montana State Legislature. Montana Code 33-23-201 – Motor Vehicle Liability Policies To Include Uninsured Motorist Coverage — Rejection By Insured That reaches two everyday situations: the driver who let a policy lapse, and the hit-and-run driver nobody can trace. Hit-and-runs count as uninsured motorist events, so your UM coverage responds even when the other driver is never identified. For a hit-and-run, report the crash to law enforcement right away and preserve what you can of the scene, including photos of the damage and contact information for any witnesses.
Minimum Limits and Buying Higher
Your insurer has to offer UM coverage at least at the state floor of $25,000/$50,000/$20,000, but you can buy more.2Montana State Legislature. Montana Code 61-6-103 – Motor Vehicle Liability Policy Minimum Limits — Other Requirements A single emergency-room visit for a serious car-accident injury can run past $25,000 before surgery or rehabilitation enters the picture. Matching your UM limits to your overall liability limits is the simplest way to keep that gap from falling on you.
Some policies include uninsured motorist property damage (UMPD) coverage, which pays to repair or replace your vehicle when the at-fault driver has no insurance. Not every insurer bundles UMPD with standard UM, so ask specifically when comparing quotes. If you already carry collision coverage with a low deductible, you have another route to vehicle repairs regardless of fault; UMPD mostly matters if you’ve dropped collision or set a high deductible.
Rejecting UM Coverage and Why It Sticks
You can turn UM coverage down. Montana Code 33-23-201 gives you the right to reject it.1Montana State Legislature. Montana Code 33-23-201 – Motor Vehicle Liability Policies To Include Uninsured Motorist Coverage — Rejection By Insured The statute doesn’t dictate a specific form of words. What it does say is that once you reject, the rejection carries forward: your insurer doesn’t have to re-offer UM at every renewal unless you ask for it in writing.
That is the detail people miss. If you waived UM five years ago and have renewed the same policy since, you almost certainly still don’t have it. Adding it back takes a written request to your insurer. Given how low Montana’s liability minimums are, revisiting that choice every policy period is worth the few minutes.
Underinsured Motorist Coverage Is Separate
Underinsured motorist (UIM) coverage is close kin to UM, but not the same thing. UM applies when the at-fault driver has no insurance at all. UIM applies when the at-fault driver has insurance, just not enough to cover your losses. Montana Code 33-23-201’s framework encompasses UIM protection, and Montana insurers typically offer both when they walk you through your options. If you accept UM, confirm whether UIM is included or whether you need to add it separately.
Can You Stack UM Limits Across Vehicles?
Stacking means combining UM limits from multiple vehicles or policies to raise your total available coverage. Montana’s rules on this changed significantly in 2007, and the answer now depends on what your insurer did with its rate filings.
Before 2007, the Montana Supreme Court took a strong pro-stacking stance. In Hardy v. Progressive Specialty Insurance Co. (2003), the court held that anti-stacking provisions violated Montana public policy when an insurer charged separate premiums for UM or UIM coverage on each vehicle and then refused to let the policyholder combine those limits. Collecting premiums for coverage the insurer never intended to pay out defeated the policyholder’s reasonable expectations.4FindLaw. Hardy v Progressive Specialty Insurance Company
In 2007, the legislature amended Montana Code 33-23-203 to give insurers a path around stacking. Under the current statute, an insurer can prevent stacking if two conditions are met: the premiums it charges actuarially reflect limiting coverage separately to each vehicle, and those rates have been filed with the Commissioner of Securities and Insurance. The insurer must also notify you in writing of the coverage limits tied to your premium and whether coverage from one vehicle or policy can be added to another.5Montana State Legislature. Montana Code 33-23-203 – Limitation of Liability Under Motor Vehicle Liability Policy
So the practical check is this. If your insurer filed anti-stacking rates with the Commissioner and your premiums reflect limited per-vehicle coverage, your policy probably blocks stacking. If the insurer didn’t take those steps, the Hardy reasoning still has force and stacking may be available. Your declarations page should spell out whether limits can be combined across vehicles; if it doesn’t, ask.
Deadlines for Filing a UM Claim
A UM claim is a claim under your insurance contract. Montana’s statute of limitations for actions on a written contract is eight years under Montana Code 27-2-202.6Montana State Legislature. Montana Code 27-2-202 – Actions Based on Contract or Other Obligation Your policy, though, almost certainly imposes shorter internal deadlines for notifying the insurer and submitting proof of loss. Missing those can sink a claim even when the statutory clock is still running.
If you also plan to sue the uninsured driver directly in tort, the general personal-injury limitations period in Montana is three years from the date of the accident, and property damage tort claims carry a shorter window. Whatever the deadline, call your insurer as soon as you can after a crash. Early reporting protects your rights and moves the claim along.
If Your Insurer Mishandles a UM Claim
The Montana Commissioner of Securities and Insurance (CSI) oversees the state’s insurance market, including UM practices. The office checks that insurers are actually offering UM coverage, reviews the anti-stacking rate filings submitted under Montana Code 33-23-203, and watches policy language for compliance.7Montana Commissioner of Securities and Insurance. Instructions For Filing Rates For UM, UIM and Med-Pay Coverages
If you believe your insurer failed to offer UM coverage, improperly denied a claim, or engaged in unfair settlement practices, you can file a complaint with the CSI office. The office investigates and can mediate disputes between policyholders and insurers. Montana’s Unfair Trade Practices Act, at Montana Code 33-18-201, separately bars insurers from neglecting to settle claims promptly when liability is reasonably clear. In Ridley v. Guaranty National Insurance Co., the Montana Supreme Court held that an insurer must pay a claimant’s medical expenses as they come in when liability is clear, rather than waiting until final settlement.8FindLaw. Ridley v Guaranty National Insurance Company Ridley involved a liability insurer, but the same Unfair Trade Practices Act applies to UM claim handling.