Updated March 2026
What Is Liability Insurance Insurance?
Liability insurance has two parts: bodily injury liability and property damage liability. Bodily injury liability pays for medical bills, lost wages, and legal costs if you injure someone in an accident you caused. Property damage liability covers repairs to another person's car, fence, mailbox, or other property you damage. Both parts include legal defense costs if you're sued. Your policy will have dollar limits for each type, typically written as three numbers like 25/50/25 — that means $25,000 per person injured, $50,000 total per accident for injuries, and $25,000 for property damage.
- You're texting and don't notice the car ahead has stopped. You hit them at 20 mph. The other driver has $8,000 in vehicle damage and $12,000 in medical bills from a neck injury. Your property damage liability pays the $8,000 repair bill, and your bodily injury liability covers the $12,000 in medical costs. If you only had state minimum coverage of 25/50/25, you'd be covered — but if their medical bills were $30,000, you'd owe the remaining $5,000 out of pocket.
- You lose control on ice and crash into two parked cars. The first car needs $6,000 in repairs, the second needs $9,000. Your property damage liability pays out $15,000 total to cover both vehicles. If your policy limit was only $10,000, you'd personally owe the remaining $5,000. Your own car has front-end damage, but liability insurance won't cover it — you'd need collision coverage to repair your vehicle.
- You run a red light and T-bone another car. Your friend in the passenger seat breaks their arm and has $18,000 in medical bills. Your bodily injury liability covers their costs, even though they were in your car, because you caused the accident. The other driver has $25,000 in injuries and $10,000 in car damage. With a 50/100/50 policy, you're covered for all of it — but with a bare minimum 25/50/25 policy, you'd be $18,000 short on the bodily injury side and personally liable for that amount.
Who Needs Liability Insurance Insurance?
Liability insurance is required by law in 48 states, so nearly everyone needs it to legally register and drive a car. Even in New Hampshire and Virginia where it's technically optional, you're personally liable for any damage you cause — one serious accident could cost you tens of thousands or more. If you're a first-time driver or under 25, liability is the absolute minimum you must carry, and choosing limits above your state minimum (like 100/300/100 instead of 25/50/25) is typically worth the extra $20 to $40 per month to avoid devastating out-of-pocket costs.
If you're legally required to have it, buy it — but don't stop at state minimums unless that's truly all you can afford. A good rule: choose bodily injury limits at least equal to your net worth or future earning potential, because you can be sued for the difference if you cause a serious accident. For most first-time drivers, 50/100/50 or 100/300/100 offers meaningful protection for a modest cost increase over minimums, typically $10 to $30 more per month.
How Much Does Liability Insurance Insurance Cost?
Liability insurance typically costs between $50 and $120 per month, or approximately $600 to $1,440 per year, depending on your coverage limits and risk factors.
- Your coverage limits — choosing 100/300/100 instead of state minimums can double your premium, but minimums often leave you financially exposed.
- Your age and driving history — drivers under 25 typically pay 50% to 100% more because insurers view them as higher risk based on accident statistics.
- Where you live — urban areas with more traffic and higher accident rates cost more, and some states like Michigan or Louisiana have premiums double the national average.
- Your claims history — even one at-fault accident can raise your liability premium by 20% to 40% for three to five years.
- Your credit score in most states — insurers use credit-based insurance scores, and poor credit can increase rates by 50% or more even for the same coverage.
- The type of car you drive — higher-value or high-performance vehicles can increase liability costs because damage you cause may be more expensive.