Independent reviews · updated July 2026
Auto

Uninsured Motorist Coverage: Why It Matters [Auto]

7 min read
Uninsured Motorist Coverage: Why It Matters [Auto]
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What Is Uninsured Motorist Coverage?

Uninsured motorist (UM) coverage pays for your injuries and, in many cases, your vehicle damage when you are hit by a driver who carries no liability insurance. Underinsured motorist (UIM) coverage kicks in when the at-fault driver has insurance, but their policy limits are too low to cover your full losses. Most carriers bundle UM and UIM together, though some states require them separately.

Why You Cannot Rely on the Other Driver

Every state has a minimum liability insurance requirement, yet a meaningful share of drivers on American roads operate without valid coverage at any given time. If one of those drivers rear-ends you at a stoplight, your only financial protection — beyond your own health insurance — is a UM policy you purchased in advance. Filing a lawsuit against an uninsured driver is possible, but collecting a judgment from someone with no assets is extremely difficult.

What UM and UIM Coverage Actually Pays

  • Medical bills and rehabilitation costs for you and your passengers
  • Lost wages if injuries keep you from working
  • Pain and suffering in states that allow it under UM claims
  • Vehicle repair or replacement when you add uninsured motorist property damage (UMPD) coverage
  • Funeral expenses in the event of a fatal crash

UM vs. Your Collision Coverage

Some drivers assume their collision coverage makes UM redundant. Collision does pay for vehicle repairs regardless of fault, but it does not cover medical expenses, lost income, or pain and suffering. Additionally, collision claims typically trigger a deductible, while many UM property damage claims do not — depending on the carrier and state rules. Carrying both gives you the broadest protection.

How to Choose the Right Limits

A common recommendation is to match your UM and UIM limits to your bodily injury liability limits. If you carry 100/300 in liability, consider 100/300 in UM/UIM as well. This creates a consistent financial safety net. Higher limits cost relatively little compared to the protection they provide, especially for households with wage earners who would face serious hardship from extended medical leave.

Comparing Carriers on Insuranceplan

Not all UM policies are structured the same way. When you compare carriers on Insuranceplan, look beyond the premium and examine:

  1. Whether the carrier stacks UM coverage across multiple vehicles on the same policy
  2. How the carrier handles hit-and-run claims, which vary widely by insurer
  3. The claims satisfaction ratings from independent reviewers
  4. Whether the policy requires a physical contact rule for uninsured motorist property damage

Running side-by-side comparisons lets you see exactly which carrier offers the right combination of price and protection for your situation.

State Requirements and Opt-Out Rules

Some states mandate UM coverage; others let you reject it in writing. If your state allows rejection, declining UM to save a small amount each month is a risk that rarely makes financial sense. Review your state's specific rules and consult the carrier comparison tools on Insuranceplan to see what options are available where you live.

The Bottom Line

Uninsured motorist coverage is one of the most cost-effective protections in a personal auto policy. It addresses a real and common risk — sharing the road with uninsured drivers — that your liability coverage alone cannot fix. Before your next renewal, use a multi-carrier comparison to make sure your UM and UIM limits are adequate and that you are not overpaying for the protection you already have.

Frequently asked questions

Is uninsured motorist coverage required in every state?

No. Requirements vary by state. Some states mandate UM/UIM coverage, others require insurers to offer it but allow written rejection, and a few have no requirement at all. Always check your state's rules before declining the coverage.

Does UM coverage apply if I am hit as a pedestrian?

In most states, yes. If you are struck by an uninsured driver while walking or cycling, your own UM coverage can apply to your medical bills and related losses, even though you were not in a vehicle.

Can I increase my UM limits without raising my full auto premium significantly?

Generally, yes. UM and UIM coverage are among the more affordable components of an auto policy. Increasing limits from the state minimum to higher amounts often costs only a modest additional premium. Comparing quotes across carriers on Insuranceplan can show you the specific cost difference.

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