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Third party insurance is the part of a car policy that pays for harm you cause to other people. In the United States, it is usually called liability insurance. The “first party” is you, the policyholder. The “second party” is your insurance company.
The “third party” is anyone else hurt or damaged in a crash you cause. Almost every state requires drivers to carry some form of third party insurance before they can legally drive. However, many drivers do not know what it covers, what it leaves out, or how much they really need. This guide explains how it works, what it costs, and how to choose the right limits.
How Third Party Insurance Works for Car Owners
Third party insurance protects other people from the financial damage you cause. It does not pay for your own injuries or your own car. For example, say you rear-end another driver at a stoplight. Your liability coverage pays for their medical bills and their car repairs, up to your policy limits. It also helps pay for your legal defense if they sue.
In most cases, the coverage has two main parts. Bodily injury liability pays for other people’s medical costs, lost wages, and pain and suffering. Property damage liability pays to repair or replace things you damage. That includes other cars, fences, buildings, and even utility poles.
Limits are usually shown as three numbers, such as 25/50/25. The first number is the most paid per injured person, in thousands. The second is the most paid for all injuries in one accident. The third is the most paid for property damage. As a result, a 25/50/25 policy pays up to $25,000 per person, $50,000 per accident, and $25,000 for property.
Anything above those limits becomes your responsibility. If you cause $80,000 in injuries with a $50,000 limit, you may owe the other $30,000 yourself. Courts can garnish wages or place liens on property to collect that money.
State Minimum Requirements and What They Cost
Each state sets its own minimum limits. New Hampshire is the only state that does not require drivers to buy liability coverage. However, drivers there must still prove they can pay for damages they cause. Virginia once allowed drivers to pay a fee instead of buying coverage. That option ended on July 1, 2024. Now Virginia drivers must carry insurance too.
Minimums have also been rising. California raised its limits to 30/60/15 on January 1, 2025. North Carolina raised its limits to 50/100/50 on July 1, 2025. Typically, these changes happen because older limits no longer cover modern medical and repair costs.
The table below shows minimum limits in several large states. Always confirm current rules with your state insurance department or DMV, since requirements can change.
| State | Bodily Injury (Per Person / Per Accident) | Property Damage | Notes |
|---|---|---|---|
| California | $30,000 / $60,000 | $15,000 | Increased January 2025 |
| Texas | $30,000 / $60,000 | $25,000 | Standard 30/60/25 |
| New York | $25,000 / $50,000 | $10,000 | Also requires PIP and UM coverage |
| Pennsylvania | $15,000 / $30,000 | $5,000 | Among the lowest limits |
| North Carolina | $50,000 / $100,000 | $50,000 | Increased July 2025 |
| Maine | $50,000 / $100,000 | $25,000 | Among the highest limits |
| Florida | No BI requirement | $10,000 | Requires $10,000 PIP |
Cost depends on your state, age, driving record, credit history (where allowed), and ZIP code. According to data from the National Association of Insurance Commissioners, liability coverage is usually the largest single piece of an auto premium. In most cases, a liability-only policy costs far less than full coverage. That is because it skips collision and comprehensive coverage for your own car.
Moving from state minimums to higher limits often costs less than drivers expect. For example, raising limits from 25/50/25 to 100/300/100 may add only a modest amount to a yearly premium. The exact increase varies by insurer, so compare quotes side by side.
What Third Party Insurance Does Not Cover
Many drivers assume liability coverage protects them fully. It does not. Third party insurance leaves several major gaps that you should understand before buying.
First, it does not repair your own vehicle. If you cause a crash, you pay your own repair bill unless you have collision coverage. Second, it does not cover theft, hail, flooding, fire, or hitting a deer. Those losses require comprehensive coverage.
Third, it does not pay your own medical bills in most states. Personal injury protection (PIP) or medical payments coverage handles that. About a dozen states use a no-fault system and require PIP. Florida, Michigan, and New York are common examples.
Finally, it does not protect you from uninsured drivers. The Insurance Research Council estimates roughly 1 in 7 U.S. drivers had no insurance in recent years. As a result, uninsured and underinsured motorist coverage is an important add-on. Some states require it, while others make it optional.
If your car is financed or leased, your lender will almost always require more than liability. Typically, loan contracts demand collision and comprehensive coverage until the loan is paid off.
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How to Choose the Right Third Party Insurance Limits
State minimums are a legal floor, not a recommendation. A single hospital stay after a serious crash can easily top $50,000. A new SUV can cost more than $45,000 to replace. As a result, minimum limits can run out fast.
Follow these steps to pick smarter third party insurance limits:
- Add up your assets. Include home equity, savings, investments, and future wages. Your liability limits should protect what you could lose in a lawsuit.
- Consider 100/300/100 as a starting point. Many consumer advocates and agents suggest these limits for drivers with moderate assets.
- Look at an umbrella policy. An umbrella policy typically adds $1 million in liability protection. It often requires you to carry high auto limits first.
- Add uninsured motorist coverage. It fills the gap when the at-fault driver has no insurance or too little.
- Compare at least three quotes. Prices for the same coverage can vary by hundreds of dollars per year between insurers.
- Review limits every year. Update coverage after buying a home, getting a raise, or adding a teen driver.
Liability-only coverage can make sense in some cases. For example, it may fit an older car worth less than a few thousand dollars. If a car’s value is close to one year of collision premiums, dropping collision may save money. However, keep liability limits high even when you drop other coverage.
Also, keep proof of insurance in your car or on your phone. Most states accept digital ID cards. Driving without required coverage can lead to fines, license suspension, vehicle impoundment, and an SR-22 filing requirement.
Frequently Asked Questions
Is third party insurance the same as liability insurance?
Yes. In the United States, third party insurance and liability insurance mean the same thing. Both pay for injuries and damage you cause to others. However, U.S. insurers and state laws usually use the term “liability coverage.”
Does third party insurance cover my car if someone else hits me?
Your own liability coverage does not pay for your car. Instead, the at-fault driver’s liability coverage pays for your damage. If that driver is uninsured, you typically need your own uninsured motorist or collision coverage.
Is state minimum third party insurance enough?
In most cases, no. Minimum limits like $15,000 or $25,000 per person rarely cover a serious injury. As a result, many experts suggest at least 100/300/100 for drivers who own homes or have savings.
What happens if I drive without liability coverage?
Penalties vary by state. Typically, they include fines, license or registration suspension, and possible impoundment. Many states also require an SR-22 certificate, which can raise your premiums for about three years.
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Official Sources & Resources
For verified information on auto insurance regulations and consumer protection:
- NAIC (National Association of Insurance Commissioners): naic.org
- Insurance Information Institute: iii.org
- Federal Trade Commission — Auto Insurance: consumer.ftc.gov
- USA.gov — Car Insurance: usa.gov/car-insurance
Content last reviewed September 2026. If you notice any outdated information, please contact us.