By Jane Taylor
What Happens If You Do Not Have Uninsured Motorist Coverage?
A crash caused by an uninsured driver can leave you with bills that do not wait: medical care, missed work, transportation costs, and vehicle repairs. Uninsured motorist coverage can help reduce that risk when the at-fault driver has no valid liability insurance.
NAIC explains that uninsured and underinsured motorist coverage may be required in some states and can help reimburse you if an uninsured, hit-and-run, or underinsured driver hits you [1]. Without that protection, you may need to rely on your own savings, health insurance, collision coverage, or legal action.
Before deciding whether to reject or lower UM, compare uninsured vs. underinsured motorist coverage and review uninsured vs. underinsured motorist coverage costs.
Understanding Uninsured Motorist Coverage
Uninsured motorist coverage, often called UM, is designed to help when another driver causes a crash and has no liability insurance. Underinsured motorist coverage, often called UIM, may help when the at-fault driver has insurance but not enough coverage to pay for the covered losses.
NAIC’s auto insurance guidance lists uninsured/underinsured motorist coverage among the coverage types that may appear in a policy, alongside liability, medical payments, and coverage for damage to your auto [2]. The exact rules, required forms, available limits, and claim requirements depend on your state and insurer.
UMBI
Uninsured motorist bodily injury may help with covered injury-related costs for you and covered passengers after an uninsured-driver crash.
UIMBI
Underinsured motorist bodily injury may help when the at-fault driver has insurance, but their limits are too low for the covered injury losses.
UMPD
Uninsured motorist property damage, where available, may help with vehicle damage caused by an uninsured driver. In other cases, collision may apply.
The Real Risk
The problem is not only that the other driver lacks insurance. The bigger problem is that collecting directly from that driver can be slow, uncertain, and sometimes impossible.
- Medical bills may arrive quickly.
- Repair needs may be immediate.
- Income loss can start right away.
- A legal judgment does not guarantee payment.
Medical bills and recovery costs
Health insurance may help, but deductibles, co-pays, out-of-network charges, physical therapy, and uncovered services can still create a major out-of-pocket burden.
Lost wages during recovery
If injuries keep you from working, a crash can interrupt your income while bills continue. UM/UIM may help with covered lost income depending on policy terms and state rules.
Vehicle repair or replacement gaps
Bodily injury UM does not automatically repair your car. You may need UMPD, collision coverage, or another applicable coverage for vehicle damage.
Collection problems
Even when the uninsured driver is clearly at fault, they may not have savings, wages, or assets that make collection realistic after a judgment.
How Common Is the Uninsured Driver Problem?
The risk is not theoretical. NAIC reports that the Insurance Research Council estimated 15.4% of motorists, or more than one in seven drivers, were uninsured in 2023. NAIC also notes that uninsured motorist rates vary widely by state, from 5.7% in Maine to 28.2% in Mississippi [3].
Insurance Information Institute reports the same 2023 uninsured motorist estimate and notes that most states saw increasing uninsured motorist trends from 2017 through 2023 [4]. That is why uninsured motorist protection is worth reviewing even if you are a careful driver.
| Question to Ask | Why It Matters | Where to Check |
|---|---|---|
| Is UM/UIM required or optional in my state? | State rules affect whether coverage is automatically included, offered, or rejectable. | State insurance department, policy documents, insurer, or licensed agent. |
| Do I have UMBI, UIMBI, UMPD, or only some of them? | Injury coverage and vehicle damage coverage are not always bundled together. | Your declarations page and UM/UIM endorsements. |
| Do my UM limits match my liability limits? | Lower UM limits may leave a gap if the injuries are serious. | Your policy declarations page and quote options. |
| Does hit-and-run qualify? | Hit-and-run claim rules can be state-specific and documentation-heavy. | Policy language, claims department, and state rules. |
With UM Coverage vs. Without UM Coverage
UM coverage does not remove every problem after an accident, but it can give you a defined claims path through your own insurer. Without it, you may need to rely on health insurance, collision coverage, personal savings, or a lawsuit against the at-fault driver.
| Crash Cost | With UM Coverage | Without UM Coverage |
|---|---|---|
| Medical bills | May be covered up to selected UM limits, subject to policy terms. | You may rely on health insurance, savings, payment plans, or legal recovery. |
| Lost wages | May be included as part of covered injury losses depending on policy and state rules. | Lost income may fall directly on your household budget. |
| Vehicle repairs | May require UMPD, collision, or another applicable vehicle damage coverage. | You may need to pay repairs yourself if no applicable coverage exists. |
| Claim process | You usually work with your own insurer under the policy’s UM/UIM claim rules. | You may have to pursue the at-fault driver directly, which can take time. |
| Financial predictability | Limits and claim rules are set in the policy. | Your recovery may depend on the other driver’s ability to pay. |
If you want to understand the broader financial side of uninsured driving, read the financial impact of driving uninsured.
When Going Without UM Coverage Is Especially Risky
The need for UM coverage depends on your state, budget, driving habits, other coverages, and emergency savings. Still, certain situations make the risk more serious.
Higher-exposure situations
- Long daily commute or heavy highway driving.
- Driving in areas with higher uninsured-driver rates.
- Frequent passengers or family members in the vehicle.
- Limited emergency savings or high medical deductibles.
- Relying on your car for work, school, or caregiving.
Policy checks before rejecting UM
- Confirm whether your state requires a rejection form.
- Compare UM limits at several levels before removing it.
- Ask whether UMPD is available where you live.
- Check how hit-and-run claims are documented.
- Review whether stacking is allowed and what it costs.
For a deeper limit-selection discussion, review essential uninsured motorist coverage limits.
Prefer Video? Use Our Insurance Channel as a Visual Companion
I did not embed a random video from another YouTube channel. Since this topic is specific to uninsured motorist coverage, this section points readers to your own insurance video channel instead of forcing an unrelated embed.
When you have a video specifically about UM/UIM, uninsured drivers, or quote comparison, this block can be swapped for that exact video embed.
Insurance Video Library
Watch more insurance explainers from the site’s YouTube channel, then return to compare UM coverage limits and quote options.
Visit Insurance Videos ChannelHow to Compare UM Coverage Before You Buy
When you compare quotes, make sure UM is included in every quote at the same limit. If one quote includes UM and another excludes it, the lower price may simply reflect weaker protection.
Step 1: Match liability limits
Start with the same bodily injury and property damage liability limits across every quote so the base comparison is fair.
Step 2: Add UM/UIM consistently
Quote UM/UIM at the same limits across insurers. Also check whether UMPD is included, optional, or unavailable.
Step 3: Ask about claim rules
Confirm deductibles, hit-and-run requirements, stacking rules, documentation deadlines, and how UM coordinates with collision or medical coverage.
For side-by-side shopping, review comparing uninsured and underinsured motorist coverage options.
FAQ: Not Having Uninsured Motorist Coverage
What happens if an uninsured driver hits me and I do not have UM coverage?
You may need to rely on your health insurance, collision coverage, personal savings, or legal action. If you lack applicable coverage, medical bills, lost wages, and repair costs may become your responsibility.
Does uninsured motorist coverage pay for my car?
Not always. Uninsured motorist bodily injury generally focuses on injury-related losses. Vehicle damage may require uninsured motorist property damage, collision coverage, or another applicable coverage depending on your state and policy.
Is uninsured motorist coverage required?
It depends on your state. Some states require UM/UIM coverage, some require insurers to offer it, and others allow policyholders to reject it. Your declarations page and state insurance department can clarify what applies.
Can health insurance replace UM coverage?
Health insurance may help with medical bills, but it may not cover lost wages, pain-related losses, passengers, deductibles, or every accident-related cost. UM/UIM can address different gaps depending on the policy and state rules.
Should my UM limits match my liability limits?
Many drivers compare matching limits because it keeps the protection they buy for themselves closer to the protection they carry for others. The right choice depends on state rules, budget, savings, income, passengers, and driving exposure.
Can I add uninsured motorist coverage later?
Usually yes, but timing, underwriting, state rules, and policy forms vary. Ask your insurer whether the change can be made mid-term or at renewal and when the coverage would become effective.
Conclusion
Not having uninsured motorist coverage can leave you exposed to medical bills, lost wages, car repair gaps, and the challenge of collecting from a driver who may not have insurance or assets. The risk is especially important because uninsured drivers are common enough to be a real concern in every state.
The best next step is to review your declarations page, confirm whether UM/UIM and UMPD are included, compare several limit options, and ask how claims are handled in your state. A small premium difference may be worth it if it helps protect your savings and income after a serious uninsured-driver crash.
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References
- National Association of Insurance Commissioners, What You Should Know About Auto Insurance Coverage, including uninsured and underinsured motorist coverage definitions. Source↩
- National Association of Insurance Commissioners, Auto Insurance consumer information, including policy sections, declarations page, and coverage types. Source↩
- National Association of Insurance Commissioners, Uninsured Motorists topic page citing Insurance Research Council 2023 uninsured motorist estimates and state variation. Source↩
- Insurance Information Institute, Facts + Statistics: Uninsured Motorists, including 2023 uninsured motorist estimate and trend summary. Source↩