Liability insurance pays for injuries and property damage you cause to someone else in a car accident

Liability coverage is the part of your car insurance that pays medical bills, lost wages, and repair costs when you're found responsible for an accident. It covers the other person's injuries and their vehicle damage — not your own. Most states require you to carry it, and your lender will require it if you have a loan or lease on your car.

Liability comes in two parts: bodily injury liability covers medical expenses and other injury-related costs for people in the other vehicle, and property damage liability covers repairs to their car or damage to other property like a fence or storefront. The insurance company pays the injured person or their lawyer directly, up to your policy limits.

Your liability limits are written as three numbers — for example, 25/50/25. The first number is the maximum paid per person for injuries, the second is the maximum paid per accident for all injuries combined, and the third is the maximum for property damage. If the total damage exceeds your limits, you're responsible for the rest.

Key Takeaways

  • Liability insurance pays for the other person's medical bills and vehicle repairs when you cause an accident, not your own damage.
  • Most states legally require liability coverage, and your lender will require it if you financed your car.
  • Your policy limits determine the maximum the insurance company will pay, and you pay anything above that amount out of pocket.
  • The insurance company handles the claim and pays the injured party directly, but you may still face a lawsuit if damages exceed your limits.

How the claim process works when you're at fault

When you cause an accident, the other driver or their insurance company will contact your insurer. You report the accident to your insurance company as soon as possible — most policies require notice within a set timeframe, often 30 days. Provide your policy number, the other driver's information, and a description of what happened.

Your insurance company assigns an adjuster to investigate the accident. The adjuster reviews police reports, photos, medical records, and repair estimates to determine fault and the amount owed. In most cases, liability is clear — you hit someone from behind, you ran a red light, you were texting. In disputed cases, the adjuster may interview witnesses or review traffic camera footage.

Once the adjuster determines you're liable and calculates damages, your insurance company pays the other person's medical providers and repair shops directly. If the other person hired a lawyer, the insurance company negotiates with them. If damages exceed your policy limits, you're responsible for the difference — the insurance company won't pay it, and the injured person can pursue a lawsuit against you personally.

What liability does and does not cover

Liability covers medical treatment, surgery, physical therapy, and lost wages for the injured person. It covers repair or replacement of their vehicle, and damage to other property — a mailbox, fence, storefront window, or parked car. It also covers legal defense costs if the injured person sues you, because your insurance company will hire a lawyer to defend you.

Liability does not cover your own injuries or vehicle damage, no matter who caused the accident. If you're injured in an accident you caused, your own medical payments coverage (if you have it) or your health insurance pays your medical bills. Damage to your car is covered only by collision coverage, which you must purchase separately. Liability also does not cover punitive damages in most states — those are damages meant to punish reckless or intentional behavior, and insurance cannot pay them.

Liability does not cover accidents that happen while you're using your car for commercial purposes, like delivery driving or rideshare. Those activities require commercial auto insurance. It also does not cover damage you cause intentionally or damage from racing, which insurers consider excluded activities.

Policy limits and what happens when you exceed them

You choose your liability limits when you buy the policy. State minimum limits vary — some states require as little as 15/30/5 (meaning $15,000 per person, $30,000 per accident for injuries, and $5,000 for property damage), while others require 25/50/25 or higher. Your lender may require higher limits than your state's minimum.

If you cause a serious accident and damages exceed your limits, you're personally liable for the difference. For example, if your limit is 25/50/25 and medical bills total $75,000, your insurance pays $50,000 (the per-accident maximum) and you owe $25,000. The injured person can sue you to recover it, and they can pursue a judgment against your wages or assets.

Raising your limits costs relatively little — moving from 25/50/25 to 100/300/100 typically adds $10 to $30 per month to your premium, depending on your age, driving record, and location. Most insurance agents recommend limits of at least 100/300/100 because a serious injury can easily exceed $50,000 in medical costs alone.

Liability and uninsured or underinsured drivers

If the other driver doesn't have insurance or their liability limits are too low to cover your damages, your own uninsured/underinsured motorist coverage (UM/UIM) pays the difference. This is a separate coverage you purchase, and it protects you when you're hit by someone without enough insurance.

UM/UIM does not apply when you're at fault — in that case, only your liability coverage applies. But if you're hit by an uninsured driver and you don't have UM/UIM, you have to pursue the other driver in small claims court or hire a lawyer to sue them, which is expensive and often unsuccessful because uninsured drivers typically have few assets.

How your driving record affects liability claims

Your insurance company will not deny a liability claim because of your driving record — if you caused the accident, your liability coverage pays for it. However, a poor driving record affects your premium when you renew your policy. An at-fault accident typically raises your rate by 20 to 40 percent, depending on the severity and your insurer's underwriting rules.

If you have multiple accidents or violations, your insurer may drop you entirely when your policy renews. Once you're dropped, finding affordable insurance becomes much harder because you'll be labeled a high-risk driver. Some insurers specialize in high-risk drivers but charge significantly higher premiums.

Umbrella insurance for liability protection beyond your policy limits

Umbrella insurance is an additional policy that covers you when your liability limits are exhausted. If you cause a serious accident and damages exceed your auto liability limits, umbrella insurance kicks in and covers the difference, up to the umbrella policy's limit (typically $1 million or more).

Umbrella insurance is inexpensive — a $1 million policy typically costs $150 to $300 per year — because it only pays after your auto liability coverage is exhausted. It's worth considering if you have significant assets to protect, if you cause an accident that injures multiple people, or if you're concerned about a lawsuit that could affect your wages or savings.

Frequently Asked Questions

What happens if I cause an accident and don't report it to my insurance company?

Your policy requires you to report accidents within a set timeframe, usually 30 days. If you don't report it and the other person later files a claim, your insurance company may deny coverage because you violated the policy terms. You'd then be personally responsible for all damages. Always report accidents promptly, even minor ones.

Can my insurance company refuse to pay a liability claim?

Yes, if you violated a policy term — for example, if you didn't report the accident on time, if you were driving without a valid license, or if you were using your car for commercial purposes not covered by your policy. Your insurer can also deny a claim if you lied on your application. Otherwise, if you're found liable, your liability coverage pays.

Do I need to hire a lawyer if someone sues me after an accident?

Your insurance company will hire a lawyer to defend you if you're sued, and you don't pay for it — it's part of your liability coverage. You should notify your insurer immediately if you're sued. Don't ignore a lawsuit or try to handle it alone, because a judgment against you can affect your wages and assets for years.

What if the other driver was partially at fault?

In states with comparative fault rules, liability is split based on each driver's percentage of fault. If you're 60 percent at fault and the other driver is 40 percent, your insurance pays 60 percent of their damages. In states with contributory negligence rules, if you're found even partially at fault, you may not recover anything. Your state's rules determine how fault is divided.

Does liability insurance cover damage to rental cars?

Yes, your liability coverage applies to rental cars you're driving. However, damage to the rental car itself is covered only if you have collision coverage on your own policy or if you purchase the rental company's damage waiver. Check your policy before renting to understand what's covered.