Introduction
Every day, responsible drivers purchase auto insurance hoping they’ll never need it. Yet, one of the most misunderstood—and underutilized—types of coverage is Uninsured/Underinsured Motorist (UM/UIM) coverage.
Whether you’re involved in a hit-and-run, struck by a driver with no insurance, or facing mounting medical bills after being hit by someone with too little coverage, UM/UIM insurance can make the difference between financial recovery and long-term hardship.
In this article, we’ll break down what UM and UIM coverage is, why it matters, how it works in real-world scenarios, and how to protect yourself and your loved ones.
What Is UM/UIM Coverage?
Uninsured Motorist (UM) coverage protects you if you’re injured by a driver who has no insurance at all.
Underinsured Motorist (UIM) coverage kicks in when the at-fault driver has insurance, but not enough to cover your damages—including medical expenses, lost income, and pain and suffering.
Together, UM/UIM insurance is your safety net when the other driver can’t financially compensate you for the harm they caused.
Why UM/UIM Coverage Matters
You may assume the other driver will have insurance. Unfortunately, reality often says otherwise.
- In the U.S., 1 in 8 drivers is uninsured, according to the Insurance Research Council.
- Many others carry minimum liability limits, which are often insufficient for serious injuries.
- Hit-and-run accidents are rising, leaving victims unable to identify the at-fault driver.
Even if you sue the uninsured or underinsured driver, they often lack assets to pay a judgment. That’s where your own UM/UIM coverage steps in, functioning almost like insurance for the other driver’s mistake.
How UM/UIM Coverage Works
Let’s break it down with a few real-world examples:
Scenario 1: Hit-and-Run
You’re rear-ended by a driver who flees the scene. Police can’t identify them.
- Their insurance? Unknown.
- Your recourse? If you have UM coverage, you can file a claim with your own insurer.
Scenario 2: Uninsured Driver
You’re t-boned at an intersection. The other driver admits fault but has no insurance.
- Their ability to pay? Likely zero.
- Your coverage? UM kicks in to cover your injuries and losses.
Scenario 3: Underinsured Driver
You suffer a serious back injury from a collision. The other driver has only $25,000 in liability coverage, but your medical bills exceed $80,000.
- Their insurance covers the first $25,000.
- Your UIM coverage can step in to cover the remaining $55,000—up to your policy limit.
What Does UM/UIM Typically Cover?
UM/UIM coverage can include:
- Medical expenses
- Lost wages
- Pain and suffering
- Funeral costs (in fatal accidents)
- Long-term disability
- Loss of future earning capacity
Some policies also cover passengers in your vehicle, and even you as a pedestrian if you’re struck by a vehicle while walking or biking.
Is UM/UIM Coverage Required?
UM/UIM coverage is not required by federal law, and requirements vary by state:
- Some states mandate UM/UIM coverage be included in auto policies.
- Others require insurers to offer it—but allow policyholders to decline it in writing.
- A few states make it entirely optional.
Even in states where it’s not required, waiving UM/UIM coverage can be a costly mistake.
At The Numbers Law Firm, we strongly recommend maintaining UM/UIM coverage—especially if:
- You live in a state with low minimum liability limits.
- You want to avoid relying solely on the other driver’s policy.
- You frequently drive in urban areas where hit-and-run rates are high.
How Much UM/UIM Coverage Should You Carry?
The answer depends on your risk tolerance and assets. A good rule of thumb: Match your UM/UIM limits to your liability limits.
If you carry:
- $100,000 per person / $300,000 per accident in liability coverage
Then your UM/UIM limits should be at least the same. This ensures that you’re as protected from others as you are from yourself.
If you carry low limits or waive UM/UIM coverage entirely, you’re betting that:
- The at-fault driver will be responsible and well-insured.
- You won’t be the victim of a hit-and-run.
- You’ll never be seriously injured in an accident.
Those are risky assumptions in today’s world.
Common Misunderstandings About UM/UIM Coverage
“I Have Health Insurance—Do I Still Need UM/UIM?”
Yes. Health insurance may cover medical bills, but not lost wages, pain and suffering, or future earning capacity. Plus, you may face high deductibles or out-of-network issues. UM/UIM fills those gaps.
“It’s Too Expensive.”
In many cases, UM/UIM coverage is inexpensive relative to the protection it provides—often a few dollars more per month.
“My Policy Includes PIP or MedPay. Isn’t That Enough?”
Personal Injury Protection (PIP) or Medical Payments (MedPay) cover initial medical costs, but they are typically capped at low limits (e.g., $5,000–$10,000) and don’t cover general damages like pain and suffering. UM/UIM provides broader protection.
What to Do After an Accident with an Uninsured or Underinsured Driver
- Call the police and file an accident report—even for minor injuries.
- Seek medical attention immediately.
- Document everything: photos, witness contact info, insurance details.
- Notify your insurance company promptly about the incident.
- Do not accept early settlement offers without legal review.
- Contact a personal injury attorney to evaluate your UM/UIM claim.
Insurers may delay, deny, or undervalue your UM/UIM claim—even though it’s your own policy. Having legal representation helps ensure you receive the full compensation you’re entitled to.
Conclusion
UM/UIM coverage is one of the most important—yet overlooked—components of a personal injury safety net. It protects you from the mistakes and irresponsibility of others, helps you recover financially, and offers peace of mind when driving.
If you’ve been in an accident involving an uninsured or underinsured driver—or if you’re unsure whether your policy offers adequate protection—The Numbers Law Firm can help. Our personal injury attorneys are experienced in navigating complex UM/UIM claims and maximizing compensation for our clients.
Injured by an uninsured or underinsured driver?
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