Liability insurance pays for damage or injuries you cause to someone else in an accident

Liability auto insurance covers the cost of injuries and property damage you're legally responsible for when you cause a crash. If you hit another car, a pedestrian, or someone's fence, your liability coverage pays their medical bills, vehicle repairs, or other losses — up to your policy limit. It does not cover damage to your own vehicle or injuries to you.

Every state except New Hampshire requires drivers to carry some amount of liability coverage. The state sets a minimum, but that minimum is often too low to protect your personal assets if you cause a serious accident. Understanding what your liability coverage actually does — and what it leaves uncovered — helps you decide whether the state minimum is enough for your situation.

Key Takeaways

  • Liability coverage pays for injuries and property damage you cause to others, but not damage to your own vehicle or medical bills for your own injuries.
  • Every state sets a minimum liability limit you must carry, but minimums range from $15,000 to $100,000 per person and vary widely by state.
  • If you cause an accident that exceeds your liability limit, you can be sued personally for the difference, which may result in wage garnishment or asset seizure.
  • Liability coverage includes legal defense costs, so your insurer pays for a lawyer if you're sued over an accident.

How liability coverage splits into two parts

Liability insurance has two components: bodily injury liability and property damage liability. Bodily injury covers medical expenses, lost wages, pain and suffering, and funeral costs for people injured in an accident you cause. Property damage covers repairs or replacement of vehicles, buildings, fences, or other property damaged in the crash.

Your policy shows these as two separate limits. A policy might read "25/50/25," which means $25,000 per person for bodily injury, $50,000 total per accident for bodily injury, and $25,000 for property damage. The first number is the per-person limit; the second is the per-accident cap for bodily injury; the third is the property damage limit. Once you hit either limit, your insurance stops paying, and you become personally responsible for anything beyond that.

State minimum liability requirements vary significantly

Your state's minimum liability requirement is the floor, not a recommendation. Most states require between $15,000 and $30,000 per person for bodily injury and $25,000 to $100,000 total per accident. A few states have higher minimums; New Hampshire has no mandatory liability requirement but requires proof of financial responsibility if you cause an accident.

The problem with state minimums is that a single serious accident can easily exceed them. A person hospitalized for a week, surgery, and ongoing physical therapy can cost $100,000 or more. If your limit is $25,000 and the injured person's actual damages are $150,000, you owe the remaining $125,000 out of pocket. That's why many insurance experts recommend carrying limits higher than your state's minimum — typically at least $100,000 per person and $300,000 per accident.

What happens when an accident exceeds your liability limit

If you cause an accident and the injured party's damages exceed your liability limit, they can sue you personally for the difference. A judgment against you can result in wage garnishment, bank account levies, or a lien on your home or other property. This debt can follow you for years; in many states, a judgment remains valid for 10 to 20 years and can be renewed.

Your liability coverage includes legal defense, so your insurer pays for an attorney if you're sued. However, the insurer's duty to defend ends when the claim reaches your policy limit. If damages exceed your limit, you may need to hire your own lawyer for the portion above your coverage, which is an additional out-of-pocket cost.

Liability coverage does not protect your own vehicle or injuries

Liability insurance covers the other person's losses, not yours. If you cause a crash and your car is damaged, your liability coverage will not pay for repairs. You need collision coverage for that. If you're injured in an accident you caused, your liability coverage will not cover your medical bills — you need medical payments coverage or personal injury protection for that.

This is a common source of confusion. Many drivers think their auto insurance covers all accident-related costs, but liability is specifically for the other party's damages. Your own vehicle and medical protection require separate coverage types, which is why most policies bundle several types together.

Umbrella insurance extends liability protection beyond your auto policy

If you own a home, have significant assets, or drive frequently, an umbrella policy can extend your liability protection beyond your auto insurance limit. Umbrella policies typically start at $1 million in coverage and cost $150 to $300 per year. They kick in only after your auto liability limit is exhausted, so they protect your home and savings from a major lawsuit.

Umbrella policies are not required, but they become more valuable the more assets you have to protect. A single serious accident could wipe out years of savings if your liability limit is low and you have no umbrella coverage. If you're unsure whether you need one, an insurance agent can review your assets and help you decide.

How to choose a liability limit that fits your situation

Start by checking your state's minimum requirement — your insurer will tell you what it is when you quote a policy. Then consider your assets: home value, savings, retirement accounts, and future earnings. If you have significant assets, carrying only the state minimum leaves you exposed to a lawsuit that could take those assets.

A practical approach is to carry liability limits equal to your net worth, or at least $100,000 per person and $300,000 per accident if your net worth is lower. If you have a home worth $300,000 and $50,000 in savings, carrying $100,000/$300,000 liability coverage is reasonable. If you have $1 million in assets, consider $250,000/$500,000 or higher, possibly with an umbrella policy.

Your insurer can show you the cost difference between limits — often the jump from $25,000 to $100,000 per person costs only $10 to $20 more per year. That small increase in premium can prevent a catastrophic financial outcome.

Frequently Asked Questions

Does liability insurance cover me if I'm sued by a passenger in my car?

Yes. If a passenger is injured in your car and you're found responsible, your liability coverage pays their medical bills and other damages. Some states exclude household members or relatives from liability coverage, so check your policy or ask your insurer about any exclusions.

What if I cause an accident but the other driver was partially at fault?

Most states use either comparative or contributory negligence rules. In comparative negligence states, your liability is reduced by your percentage of fault — if you're 30% at fault, you pay 30% of damages. In contributory negligence states, you may not recover anything if you're found any percentage at fault. Your insurer handles the negotiation with the other party's insurer.

Does liability insurance cover hit-and-run accidents?

No. Liability insurance covers accidents where you're identified and found responsible. In a hit-and-run, you would need uninsured motorist coverage to cover your own vehicle damage and injuries if the other driver is never found. Hit-and-run is also a criminal offense in all states.

Can my liability limit be too high?

No. Higher liability limits cost very little more in premium and protect you from catastrophic financial loss. The only reason to carry a lower limit is cost, but the premium difference between state minimum and $100,000/$300,000 is usually small enough that higher limits make financial sense for most drivers.

What if I cause an accident while driving someone else's car?

Your liability coverage typically follows you when you drive another person's car with permission — this is called permissive use. However, the car owner's insurance may be the primary payer. If you frequently borrow a car, ask your insurer whether you're covered and whether the owner's insurer will be primary or secondary.