What's the difference between uninsured motorist and underinsured motorist?

Asked by: Seamus Funk  |  Last update: January 26, 2026
Score: 4.1/5 (23 votes)

Uninsured motorist insurance protects you if you're in an accident with an at-fault driver who doesn't carry liability insurance. Underinsured motorist coverage steps in when you're in an accident with an at-fault driver whose liability limits are too low to cover the medical expenses of any injured people.

Do I need uninsured or underinsured motorist coverage?

California law does not require you to carry uninsured motorist (UM) or underinsured motorist (UIM) coverage—so, legally, you don't need either one. However, UM/UIM is an important and commonsense coverage to carry.

Will my insurance go up if I use an underinsured motorist claim Progressive?

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That means your rates cannot legally go up when you try to get the compensation you need and deserve after an auto accident.

What does it mean to be underinsured on a claim?

Being "underinsured" means a person has insurance coverage, but the limits may not be high enough to cover the full expenses of a claim.

Do you have to pay deductible if hit by an uninsured motorist?

Suppose you have collision coverage and are involved in an accident with an uninsured driver in California who is at fault. In that case, the collision damage waiver will likely apply and cover your deductible.

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What is the disadvantage of uninsured motorist coverage?

Some cons to consider include: Additional cost: Adding uninsured motorist coverage to your policy typically increases your insurance premium, which can be financially burdensome. It is important to weigh the benefits against the added cost and your budget.

Will my insurance go up if I use uninsured motorist claim?

This is because when you cause an accident and have to make a claim to pay for damages caused to other people, your rates typically do increase. However, under California's proposition 103, insurance companies are not allowed to raise rates or drop a person because they made an uninsured motorist claim.

What are the consequences of underinsurance?

A risk not worth taking

Because the consequences of underinsurance can be serious in two ways: leaving you unable to claim for your full loss, and making you susceptible to the average rule, reducing your claim further. That's a double whammy that's difficult to swallow.

Which is better, a collision or an uninsured motorist?

Deductible Comparison: UMPD generally has a lower deductible compared to collision coverage. This can be beneficial in reducing immediate out-of-pocket costs. Broader Coverage: UMPD can cover not just your vehicle but also other property, such as a fence or a garage, if damaged by an uninsured driver.

What is an example of underinsurance?

You put in a claim for $50,000 for repairs and replacement of the damaged equipment. An assessor determines that your total equipment is valued at $200,000. As you have declared/insured your equipment for $100,000 but the assessed value is $200,000, you have underinsured yourself by 50%.

What are three things that could happen if you are underinsured?

Some risks you may expose yourself to by being underinsured are as follows.
  • The Costs of Emergency Home Repairs Can Add Up. ...
  • You May Not Be Adequately Covered For Flood Damage. ...
  • Your High-Value Items Might Not Be Sufficiently Covered. ...
  • Your Policy May Be Cancelled. ...
  • You May End Up With a High Deductible After An Accident.

Do insurance companies go after underinsured drivers?

While insurance companies may pursue uninsured drivers to recover claim costs, the process can be complex and time-consuming. Uninsured drivers involved in accidents should seek legal counsel promptly to protect their rights and explore possible compensation avenues.

Does underinsured motorist cover diminished value?

Diminished value is recoverable by both a third-party who's at fault and by your own policy's underinsured motorist coverage. The statute of limitations is 3 years from the date of the accident. Diminished value of your vehicle is recoverable in third-party cases only.

What is the difference between uninsured and underinsured health care?

When it comes to health insurance, it's easy to know if you're uninsured: you either have coverage, or you don't. But being underinsured is more of a gray area. You have health insurance, but because of a high deductible or other out-of-pocket costs, it doesn't cover as much as you might need.

What is enhanced uninsured motorist coverage?

What is “enhanced underinsured motorist coverage”? Enhanced underinsured motorist coverage provides coverage, subject to the policy's limits, for bodily injuries and property damage resulting from an accident caused by the underinsured, at-fault driver.

Do I have to pay the deductible for an uninsured motorist?

What is an uninsured motorist deductible? If an uninsured driver damages your vehicle and you carry uninsured motorist property damage (UMPD) coverage on your auto policy, your uninsured motorist coverage deductible is the amount of money you pay out of your own pocket for the claim on your damaged car.

When might collision coverage not be worth getting?

Your vehicle's value is less than a few thousand dollars: If your car holds minimal value, collision coverage may not be worth carrying. This is especially true when a large car insurance deductible is involved.

Does uninsured motorist coverage cost more?

It can be relatively inexpensive to add uninsured and underinsured motorist coverage to your policy. However, costs may be higher in states with large numbers of uninsured drivers. If you're insuring more than one vehicle, you can choose to stack your coverage in some states.

Why is underinsurance a problem?

As employers and insurers continue shifting healthcare costs onto patients, more consumers will either avoid getting care or wind up with medical bills they cannot pay. Case in point: Underinsured adults reported having the highest rate of medical debt (44%) among all insurance types, per Commonwealth Fund.

What is average underinsurance?

The average clause is a way of insurers paying out less than they need to if a policyholder is paying less than the premium they should be because they have inadequate cover. Insurers apply the average clause and only payout a proportionate amount for what you are claiming based on how much you are underinsured by.

What are the risks of underinsurance?

Consequences of underinsurance

For instance, without adequate home insurance, homeowners may struggle to cover the costs of rebuilding their property after a weather event. Inadequate car insurance can leave policyholders unable to afford repairs or replacement following an accident.

Do uninsured motorist claims go against you?

If you have an accident that is not your fault and then make a UM/UIM claim for that accident, you are within the two events allowed under this code section. The insurance company cannot raise premiums, cancel coverage or refuse to renew your policy.

Which is better collision or uninsured motorist?

Deductibles: Collision coverage often comes with a deductible you're responsible for paying out of pocket before your insurer pays the rest. Uninsured motorist coverage usually has no deductible, making it a preferable option for immediate, out-of-pocket expenses.

What is uninsured motorist coverage reduced?

Reduced uninsured motorist or underinsured motorist auto insurance fills in the gaps when there is not enough or no coverage for the at-fault driver and covers you up to an equal amount of your policy.