Uninsured and Underinsured Motorist Coverage: How It Protects You

UM, UIM, and UMPD

Rules vary by state. Some states require UM, others require insurers to offer it.

Why it matters

The Insurance Research Council has estimated that roughly one in seven U.S. drivers is uninsured, and many more carry only the state minimum. If one of them injures you seriously, their coverage may pay little or nothing. UM and UIM protect you and your passengers, and in many states they also apply when you are a pedestrian or cyclist.

State requirements

About half of states require some form of uninsured motorist coverage, and most others require insurers to offer it so you must reject it in writing. Examples from our state guides: West Virginia requires UM at 25/50/25, Virginia and North Carolina require UM/UIM at matching limits, Kansas requires UM/UIM at 25/50, while Arizona, Texas, Alabama, and Oklahoma require insurers to offer it.

Stacking and other options

Some states allow stacking, which combines UM limits across vehicles or policies for higher protection. Some, like Georgia, offer add-on coverage that pays on top of the at-fault driver's limits instead of reduced-by coverage. Ask which options your state allows.

Choosing limits

Many drivers choose UM/UIM limits equal to their liability limits. If you have good health and disability insurance, UM still covers pain and suffering and lost wages beyond those benefits.

Filing a UM or UIM claim

Report the crash to police and your insurer promptly, especially for hit-and-run crashes, which some states require within a set time. Your own insurer handles the claim, and for UIM, you typically must first settle with the at-fault driver's insurer, with your insurer's consent.

Coverage terms to match on every quote

Limits shown are examples, not recommendations. State minimum requirements differ.

Three coverage levels compared

Examples only, not recommendations. Add UM/UIM at matching limits where possible.

Moving from the minimum to a middle level often costs less than people expect, because liability premiums do not rise in proportion to limits. Ask for both prices before deciding.

Ways to lower your premium

• Compare at least three quotes with identical coverage every year or two, and whenever your premium jumps at renewal.
• Raise collision and comprehensive deductibles to an amount you could pay tomorrow without strain.
• Drop collision and comprehensive on an older car only when the car's value is low enough that you could replace it yourself.
• Ask about every discount: multi-policy, multi-vehicle, good student, defensive driving, paperless, paid-in-full, and safety equipment.
• Try a driving-data program if you drive carefully and are comfortable sharing driving data. See usage-based insurance.
• Keep continuous coverage. Even a short lapse can raise future rates.
• Report accurate mileage. Lower annual mileage can mean a lower premium.
• Bundle auto with renters or homeowners insurance where the combined price is lower.

Discounts to ask about

Discount names, amounts, and availability vary by insurer and state.

Coverage you should think twice about cutting

Some coverage cuts save very little and expose you to large losses. Be cautious about:

• Buying only the state minimum liability. Minimum limits can be exhausted by a single serious injury, leaving you personally responsible for the rest.
• Rejecting uninsured motorist coverage. It protects you when the at-fault driver has no insurance or too little. See uninsured and underinsured motorist coverage.
• Dropping collision on a financed car. Lenders and lessors usually require it.
• Letting the policy lapse between vehicles or during a move.

How insurers set your price

Most insurers price a policy using your driving record, years licensed, age where allowed, the vehicle, where it is garaged, annual mileage, coverage limits, deductibles, prior insurance history, and, where state law permits, a credit-based insurance score. Each insurer weighs these factors differently, which is why quotes for the same driver can differ by hundreds of dollars. Improving the factors you control, especially your record and continuous coverage, pays off over several renewals.

Payment plans and fees

How you pay can change your total cost. Many insurers charge installment fees for monthly payments, and some offer discounts for paying the full term upfront, enrolling in automatic payments, or going paperless. If paying in full is not possible, ask which payment plan has the lowest fees. Missing a payment can cancel your policy and create a lapse, which raises future rates, so set up reminders or autopay.

If you are considered high risk

If several insurers decline you because of violations, accidents, a lapse, or a DUI, you still have options. Many insurers specialize in higher-risk drivers, and every state has a residual market plan for drivers who cannot find coverage in the voluntary market. Prices are higher, but keeping coverage continuous and your record clean will usually bring rates down over three to five years. If a court or the motor vehicle agency requires an SR-22 or similar filing, see our SR-22 insurance and high-risk auto insurance pages.

When an agent may help

Online tools work well for simple situations. A conversation with a licensed agent may be more useful when:

• You have a teen driver, several vehicles, or drivers with recent accidents or violations.
• You need an SR-22 or other state filing. See our SR-22 insurance page.
• You use a vehicle for rideshare, delivery, or other business purposes.
• You own a home, rental property, or significant savings and want liability limits that work with an umbrella policy.
• You have had a claim denied or a policy nonrenewed and need help understanding your options.

An agent can also explain differences in policy wording that are hard to see on a results page.

Switching insurers without a gap

If a new quote is lower, switch carefully so you are never uninsured:

1. Confirm the final price after the insurer verifies your information.
2. Set the new policy to start on or before the date the old one ends.
3. Give the new insurer your lender or lessor information if the vehicle is financed.
4. Save your new ID cards and declarations page.
5. Cancel the old policy effective the same day, and ask about any refund of unused premium.
6. If you have an SR-22, confirm the new insurer files it before the old filing ends.

What to have ready for a quote

These details help produce accurate quotes.

1. Driver details. License numbers and dates of birth for every household driver.
2. Vehicle VINs. And annual mileage for each vehicle.
3. Driving history. Accidents and violations in the past three to five years.
4. Current declarations page. To match limits and deductibles.
5. Garaging address. Where each vehicle is kept.

UM and UIM coverage FAQs

Related guides

• Uninsured motorist coverage
• Underinsured motorist coverage
• Car insurance

Your next step

Request a quote, and a licensed agent will compare options available to us using the coverage you choose.