How Uninsured Motorist Coverage Protects Your Finances
Uninsured motorist coverage can help protect you when another driver causes a covered accident but has no insurance, not enough coverage, or leaves the scene in a hit-and-run situation, depending on state rules and policy terms.
According to NAIC and Insurance Research Council data, 15.4% of motorists nationwide were uninsured in 2023, or about one in seven drivers [1]. IRC also reported that the underinsured motorist rate reached 18.0% in 2023, which shows why both uninsured and underinsured protection deserve attention [2].
Before choosing limits, compare uninsured motorist coverage costs, review uninsured vs. underinsured motorist coverage, and check how UM coverage works in high-risk areas.
What Uninsured Motorist Coverage Means
Uninsured motorist coverage, often called UM coverage, is designed to help pay for certain losses when an at-fault driver has no liability insurance. Depending on your state and policy, it may also apply to hit-and-run accidents. Underinsured motorist coverage, often called UIM coverage, helps when the at-fault driver has insurance but not enough to cover the full loss.
The exact protection depends on your policy language. In some states, uninsured motorist bodily injury and underinsured motorist bodily injury are offered together. In others, they may be separate selections. Uninsured motorist property damage may be available in some places but limited or unavailable in others.
UMBI
Uninsured motorist bodily injury may help pay for injuries to you and your passengers after a covered crash caused by an uninsured driver.
UIMBI
Underinsured motorist bodily injury may help when the at-fault driver’s liability limits are too low for the total injury costs.
UMPD
Uninsured motorist property damage may help with vehicle damage caused by an uninsured driver, where available and subject to policy rules.
Why This Coverage Can Protect Your Finances
A serious accident can create costs that go beyond a simple repair bill. Medical treatment, emergency care, physical therapy, lost wages, replacement transportation, and legal disputes can become expensive quickly. If the at-fault driver has no insurance, you may have limited options unless your own policy includes the right protection.
What UM/UIM may help protect against
- Medical bills after a covered accident.
- Lost wages if injuries prevent you from working.
- Passenger injuries, depending on policy terms.
- Hit-and-run losses, where covered by state and policy rules.
- Vehicle damage, if uninsured motorist property damage is available.
Without enough protection
You may have to rely on the at-fault driver’s ability to pay, your health insurance, your collision coverage, or your own savings. That can create gaps, deductibles, delays, and out-of-pocket costs.
Uninsured vs. Underinsured Motorist Coverage
Many drivers hear “uninsured motorist coverage” and assume it covers every situation where the other driver cannot pay. In reality, uninsured and underinsured coverage are related but not identical. Understanding the difference helps you choose better limits.
| Coverage type | When it may apply | Financial reason to consider it |
|---|---|---|
| Uninsured motorist bodily injury | The at-fault driver has no insurance, or a hit-and-run driver causes a covered injury loss. | Can help protect against medical costs and lost income when the other driver has no liability coverage. |
| Underinsured motorist bodily injury | The at-fault driver has insurance, but their liability limits are not enough for the injury claim. | Can help bridge a gap between the other driver’s low limits and your actual damages. |
| Uninsured motorist property damage | Your vehicle is damaged by an uninsured driver, where this coverage is available. | May help with repair costs when collision coverage is absent or when policy terms make UMPD useful. |
| Collision coverage | Your own vehicle is damaged in a crash, regardless of who caused it, subject to deductible. | Can be important if UMPD is unavailable, limited, or does not cover hit-and-run property damage in your state. |
For a dedicated breakdown, read uninsured vs. underinsured motorist coverage.
Choosing the Right Coverage Limits
The coverage limit is the most your insurer will pay for a covered claim, subject to policy terms. Low limits may reduce the premium, but they can leave you exposed after a serious crash. Higher limits usually cost more, but they may provide stronger protection for medical bills, lost wages, and long-term injury costs.
Forbes Advisor’s analysis lists average annual costs of $136 for uninsured motorist bodily injury, $90 for underinsured motorist bodily injury, and $36 for uninsured motorist property damage [3]. Your actual cost can be higher or lower depending on your state, insurer, limits, vehicle, ZIP code, and driving profile.
Consider matching liability limits
Many drivers compare UM/UIM limits with their bodily injury liability limits. This can create a more balanced policy, though state rules and affordability still matter.
Think beyond state minimums
Minimum requirements may not reflect the real cost of a serious injury claim. Review limits based on your income, savings, passengers, commute, and local risk.
For more detail, see understanding uninsured motorist coverage costs.
Real-World Situations Where UM Coverage Can Matter
Many drivers assume they will never be hit by an uninsured driver. The problem is that uninsured and underinsured motorists are common enough to make the risk worth reviewing. NAIC reports that uninsured motorist rates vary widely by state, from 5.7% in Maine to 28.2% in Mississippi in 2023 [1].
Hit-and-run crash
A driver hits your vehicle and leaves. Depending on your state and policy, UM coverage may help with injury costs, and other coverage may be needed for vehicle repairs.
Low-limit driver
The other driver has insurance, but the limits are too low for hospital bills and lost wages. UIM coverage may help close the gap.
Passenger injury
If passengers are injured in a covered accident with an uninsured driver, your UM/UIM coverage may help, depending on the policy terms.
What to Ask Before Adding UM/UIM Coverage
Adding uninsured motorist coverage is usually handled through your insurer or agent, but the details matter. Before you accept or reject coverage, ask how it works in your state and whether your chosen limits are enough for your financial situation.
| Question | Why it matters | What to confirm |
|---|---|---|
| Is UM required in my state? | Some states require UM/UIM, some require insurers to offer it, and some allow rejection. | Ask whether you must sign a rejection form if you decline coverage. |
| Are UM and UIM separate? | Coverage may be bundled or sold separately depending on state and insurer. | Confirm both uninsured and underinsured protection before assuming you have both. |
| Does it cover hit-and-run accidents? | Hit-and-run rules vary by state and policy type. | Ask whether injury and property damage are handled differently. |
| Is property damage included? | UMBI protects injuries; UMPD is a separate property damage concept in many policies. | Compare UMPD with collision coverage and deductible rules. |
| Can coverage stack? | Some states allow stacking across vehicles or policies, while others limit it. | Ask how stacking works before choosing limits on multi-car policies. |
How to Add or Review Uninsured Motorist Coverage
If you decide uninsured motorist coverage belongs in your policy, review it before renewal, after moving, after buying a car, after adding a driver, or after changing your commute. The best time to adjust coverage is before a claim happens.
Review your current policy
Check your declarations page for UM, UIM, UMPD, collision, and deductible details.
Compare limits
Look at per-person, per-accident, property damage, and liability limits side by side.
Ask about gaps
Confirm hit-and-run rules, underinsured driver protection, and property damage handling.
Shop with equal limits
Compare quotes using the same UM/UIM limits so price differences are fair.
FAQ: Uninsured Motorist Coverage and Financial Protection
What is uninsured motorist coverage?
Uninsured motorist coverage can help pay for certain losses when an uninsured driver causes a covered accident. Depending on your state and policy, it may also apply to hit-and-run accidents.
Is uninsured motorist coverage mandatory?
Not in every state. Some states require it, some require insurers to offer it, and others make it optional. Always check your state rules before rejecting coverage.
What is the difference between UM and UIM?
UM applies when the at-fault driver has no insurance. UIM applies when the at-fault driver has insurance, but their limits are not enough to cover the full loss.
Does uninsured motorist coverage repair my car?
Not always. Uninsured motorist bodily injury focuses on injuries. Uninsured motorist property damage may help with vehicle repairs where available, but collision coverage may still be important.
How much uninsured motorist coverage do I need?
It depends on your state, assets, income, passengers, commute, vehicle, and comfort with risk. Many drivers compare UM/UIM limits with bodily injury liability limits as a starting point.
Should I compare quotes if I already have UM coverage?
Yes. Your current coverage may be useful, but another insurer may offer better pricing, stronger limits, different deductible terms, or better overall value.
Bottom Line
Uninsured motorist coverage can help protect your finances when another driver cannot pay for the damage they cause. With uninsured and underinsured drivers still a real risk on U.S. roads, this coverage deserves a serious review instead of being treated as an optional afterthought.
The smartest approach is to compare UM, UIM, UMPD, collision coverage, liability limits, and deductibles together. Choose limits that fit your risk, verify how the coverage works in your state, and review the policy again whenever your vehicle, commute, household, or finances change.
References
- National Association of Insurance Commissioners, Insurance Topics: Uninsured Motorists, including 2023 uninsured motorist estimates and state variation. Source↩
- Insurance Research Council, Uninsured and Underinsured Motorists: 2017–2023, including 2023 uninsured and underinsured motorist trends. Source↩
- Forbes Advisor, What Is Uninsured Motorist Coverage?, including average annual cost estimates for UMBI, UIMBI, and UMPD. Source↩
- Insurance Information Institute, Facts + Statistics: Uninsured Motorists, including 2023 uninsured motorist data from IRC. Source↩
- National Association of Insurance Commissioners, What You Should Know About Auto Insurance Coverage, including uninsured and underinsured motorist coverage definitions. Source↩