Uninsured and Underinsured Motorist Claims in New Mexico

You’re sitting at a red light on Paseo del Norte, minding your own business, when someone rear-ends you hard enough to deploy your airbags. You get out, shaken and hurting, and the other driver is already making excuses — or worse, they take off. Then comes the gut punch: they have no insurance. Or maybe they have the bare minimum and your medical bills are already climbing past what their policy will ever cover. This happens every single day in New Mexico, and most people have no idea what to do next. The good news? You may have coverage that protects you in exactly this situation — and you might not even know it. This post breaks down everything you need to know about uninsured and underinsured motorist claims in New Mexico, in plain language, so you can understand your rights and take action.

What Is UM/UIM Coverage and Why Does It Matter?

UM stands for uninsured motorist coverage. UIM stands for underinsured motorist coverage. They sound similar, and they work in a similar way, but they cover two different situations.

Uninsured motorist (UM) coverage kicks in when the driver who hit you has zero insurance at all — or when you’re the victim of a hit-and-run and the driver is never found.

Underinsured motorist (UIM) coverage applies when the at-fault driver has insurance, but their policy limits aren’t enough to fully cover your injuries and losses. For example, if the other driver has $25,000 in bodily injury coverage but you have $80,000 in medical bills, their insurance won’t come close to making you whole. That’s where your UIM coverage steps in to cover the gap.

Here’s the thing most people don’t realize: when you make a UM or UIM claim, you’re making it against your own insurance company — not the at-fault driver’s. That can feel strange, especially if you’ve been a loyal customer paying premiums for years. But insurance companies don’t always make it easy, even when it’s your own policy. That’s one reason why having an attorney in your corner matters.

Is UM/UIM Coverage Required in New Mexico?

Yes — and this is important. Under NMSA 66-5-301, every auto insurance policy sold in New Mexico must include uninsured and underinsured motorist coverage. It’s not optional by default. You have to have it unless you specifically reject it in writing.

The required minimum limits match the state’s bodily injury minimums: $25,000 per person and $50,000 per accident. So if you’re driving around with a basic New Mexico auto policy and you’ve never signed anything to reject UM/UIM coverage, you almost certainly have it.

There are a couple of important details in the law worth knowing:

• If you rejected UM/UIM coverage on a previous policy with the same insurer, you don’t have to reject it again every time your policy renews. One signed rejection can carry forward.
• UM/UIM coverage selection must be made on a per-vehicle basis, with a separate signed form that shows you the available coverage levels and what they cost.
• For property damage claims, your insurer can exclude the first $250 under the policy.

The bottom line: before you assume you don’t have UM/UIM coverage, check your policy carefully. Most New Mexico drivers do have it. If you’re not sure, the team at El Gringo Law can help you review your coverage during a free case evaluation.

How Many Drivers in New Mexico Are Uninsured?

New Mexico consistently ranks among the states with the highest rates of uninsured drivers. Estimates suggest that somewhere between 20% and 25% of drivers on New Mexico roads have no insurance at all. That’s roughly one in four or five cars around you at any given moment.

Think about that the next time you’re merging onto I-40 or driving down Central Avenue. The odds that you’ll eventually encounter an uninsured driver are not small. This is exactly why UM/UIM coverage exists — and why it’s so important to understand how it works before you need it.

What Counts as an «Uninsured» Driver Under New Mexico Law?

Most people assume «uninsured» just means the other driver has no policy at all. But under NMSA 66-5-301, the definition is broader than that. An uninsured driver can also include:

• A driver whose insurance company denies the claim or becomes insolvent
• A driver who has a policy, but whose insurer refuses to pay for any reason
• A hit-and-run driver who can’t be identified

That last one is especially important. If someone hits you and drives away, you’re not just out of luck. Under New Mexico law, a hit-and-run driver is treated as an «unknown motorist» for UM coverage purposes — meaning your own UM coverage can apply even when you never got the other driver’s information.

There are some requirements for hit-and-run UM claims — you generally need to report the accident to police promptly and cooperate with your insurer’s investigation. But the coverage is there for exactly this situation.

What Damages Can You Recover Through a UM/UIM Claim?

A UM/UIM claim isn’t just about getting your car fixed. You can seek compensation for the same types of damages you’d pursue against an at-fault driver directly, including:

• Medical bills — past and future treatment costs related to your injuries
• Lost wages — income you missed because of your injuries
• Future lost earning capacity — if your injuries affect your ability to work long-term
• Pain and suffering — the physical pain and emotional distress caused by the accident
• Property damage — though this is subject to the $250 deductible your insurer may apply

In short, you’re not limited to just medical bills. A serious injury can affect your life in many ways, and a properly documented UM/UIM claim should account for all of it.

How Does New Mexico’s Comparative Fault Rule Affect UM/UIM Claims?

New Mexico follows a pure comparative negligence system under NMSA 41-3A-1. This means that even if you were partially at fault for the accident, you can still recover compensation — it’s just reduced by your percentage of fault.

For example, if you were 20% at fault and your total damages are $100,000, you’d recover $80,000. There’s no cutoff point in New Mexico. Even if you were 80% at fault, you could still recover 20% of your damages. No other state is as protective of injured people in this regard.

This rule applies to UM/UIM claims as well. Your insurer can’t simply deny your claim because you played some role in the accident. But they can argue you were partially at fault to reduce what they owe you — which is another reason to have legal representation.

What to Do After Being Hit by an Uninsured Driver

The steps you take right after the accident can make or break your UM/UIM claim. Here’s what to do:

1. Call the Police

Get a police report, even if the accident seems minor. If the other driver has no insurance — or runs — that report is critical evidence. It documents the accident, the other driver’s information (if available), and the fact that you reported it promptly.

2. Gather Evidence at the Scene

Take photos of everything: vehicle damage, road conditions, traffic signs, license plates, and any visible injuries. Get contact information from witnesses. The more documentation you have, the better.

3. Seek Medical Treatment Right Away

Don’t wait to see a doctor, even if you feel okay at first. Many injuries — including whiplash, soft tissue damage, and even concussions — don’t show full symptoms until 24 to 72 hours after impact. Delaying treatment gives insurance companies ammunition to argue your injuries weren’t serious or weren’t caused by the crash.

4. Notify Your Own Insurance Company

Report the accident to your own insurer as soon as possible. This is required under virtually every policy. Be honest about what happened, but stick to the facts. Don’t speculate, don’t minimize, and don’t give a recorded statement without talking to an attorney first.

5. Don’t Settle Too Fast

Insurance companies — even your own — may offer a quick settlement. Quick settlements almost always undervalue your claim, especially if you haven’t finished treatment yet. Once you settle, you give up your right to go back for more money, even if your injuries turn out to be worse than expected.

6. Talk to a Personal Injury Attorney

UM/UIM claims sound simple but can get complicated fast. Your insurer may dispute fault, question your injuries, or argue about coverage. The attorneys at El Gringo Law handle UM/UIM claims regularly and offer a free case evaluation — no cost to you just to understand your options.

What If the At-Fault Driver Has Some Insurance, Just Not Enough?

This is where UIM coverage becomes critical. New Mexico’s minimum bodily injury limits are just $25,000 per person under NMSA 66-5-215. If you suffered a broken arm, a herniated disc, or any moderate injury, $25,000 can disappear fast — especially once you factor in emergency room visits, specialist appointments, physical therapy, and time off work.

Under NMSA 66-5-301, an «underinsured» driver is defined as one whose liability limits are lower than your UIM limits. So if you carry $100,000 in UIM coverage and the at-fault driver only has $25,000 in liability coverage, your UIM policy can cover the gap — up to the difference between your UIM limit and what the other driver’s policy paid.

This is why it’s worth paying a little more for higher UM/UIM limits when you buy your policy. The difference in premium is usually small. The difference it makes when you’re hurt can be enormous.

Can You Stack UM/UIM Coverage in New Mexico?

Stacking means combining the UM/UIM coverage from multiple vehicles on your policy — or even across multiple policies — to increase the total amount available to you. For example, if you have three vehicles insured under one policy, each with $25,000 in UM coverage, stacking would give you $75,000 in total UM coverage for a single accident.

Whether stacking is available depends on the specific language in your policy. Some policies allow it; others expressly prohibit it. New Mexico courts have addressed stacking issues in favor of policyholders in certain circumstances. An attorney can review your policy and tell you whether stacking is available to you — this alone can significantly increase your recovery.

How Long Do You Have to File a UM/UIM Claim in New Mexico?

Under NMSA 37-1-8, the general statute of limitations for personal injury claims in New Mexico is three years from the date of the accident. That same three-year window typically applies to UM/UIM claims as well, though your specific policy may have its own notice and claims requirements that kick in much sooner.

Three years sounds like a long time, but it goes faster than you’d think — especially while you’re dealing with medical treatment, lost work, and the general stress of recovering from an accident. And if the at-fault driver is a government employee operating a government vehicle, the timeline is even shorter: you’d need to file a written notice within 90 days under NMSA 41-4-15.

Don’t wait. Evidence fades, witnesses forget details, and missing a deadline can wipe out your entire claim. If you’ve been in an accident, reach out to El Gringo Law for a free consultation sooner rather than later.

Working With El Gringo Law on Your UM/UIM Claim

Dealing with your own insurance company after an accident can feel like a betrayal. You’ve paid your premiums. You did the right thing by having coverage. And now the same company is questioning your injuries, dragging their feet, or offering you a fraction of what your claim is worth. That’s not right — and you don’t have to accept it.

El Gringo Law is a personal injury law firm based right here in Albuquerque, New Mexico. They handle UM/UIM claims, car accidents, truck accidents, motorcycle accidents, pedestrian accidents, and more. The firm is most of our team speaks spanish — la mayoría de nuestro equipo habla español — and works on a contingency basis, which means you pay nothing unless they win your case. There are no upfront fees and no hourly billing. Just a free case evaluation and a team that fights for what you actually deserve.

If you’ve been hit by an uninsured or underinsured driver in New Mexico, don’t try to handle the insurance company alone. Call El Gringo Law and find out exactly where you stand.

Frequently Asked Questions: UM/UIM Claims in New Mexico

What is the difference between uninsured and underinsured motorist coverage?

Uninsured motorist (UM) coverage applies when the at-fault driver has no insurance at all, or when a hit-and-run driver cannot be identified. Underinsured motorist (UIM) coverage applies when the at-fault driver has insurance, but their policy limits aren’t high enough to cover your full damages. Both types of coverage are required under New Mexico law (NMSA 66-5-301) unless you reject them in writing.

Do I have to have UM/UIM coverage on my New Mexico auto policy?

Every auto insurance policy issued in New Mexico must include UM/UIM coverage by default. You can reject it in writing, but if you’ve never done that, you almost certainly have it. The required minimum is $25,000 per person and $50,000 per accident, matching New Mexico’s bodily injury liability minimums under NMSA 66-5-215.

Can I make a UM claim if I was in a hit-and-run accident?

Yes. Under NMSA 66-5-301, a hit-and-run driver who can’t be identified is treated as an «unknown motorist» for UM coverage purposes. You should report the accident to police immediately and notify your own insurance company. Cooperating with your insurer’s investigation is typically required, but the coverage is designed for exactly this situation.

If I was partially at fault for the accident, can I still make a UM/UIM claim?

Yes. New Mexico follows pure comparative negligence under NMSA 41-3A-1, which means you can recover damages even if you were partially at fault. Your recovery is simply reduced by your percentage of fault. For example, if you were 30% at fault and your damages total $50,000, you’d recover $35,000. There’s no fault percentage cutoff that bars recovery in New Mexico.

How long do I have to file a UM/UIM claim in New Mexico?

The general statute of limitations for personal