Types of Car Insurance Coverage, Explained

When you buy car insurance, you aren't buying one product. You are buying several coverages bundled into one policy, each with its own limit and, sometimes, its own deductible. Knowing what each one does is the fastest way to stop overpaying for coverage you don't need, and to avoid the gaps that hurt most after a crash.

The main coverages at a glance

Based on NAIC consumer guidance, June 2026. Requirements vary by state.

Liability coverage: protecting other people (and your savings)

Liability coverage is the heart of every policy and the part almost every state requires. It has two pieces:

• Bodily injury liability pays for injuries you cause to other people. According to the NAIC, it also covers you and family members listed on the policy when you drive someone else's car with permission.
• Property damage liability pays for damage you cause to other people's cars and to objects and structures you hit.

Liability limits are often written as three numbers, such as 30/60/15. The first is the maximum paid for one injured person, the second is the maximum for all injuries in one accident and the third is the maximum for property damage, all in thousands of dollars. If a crash costs more than your limits, you can be held personally responsible for the rest, which is why the NAIC warns against automatically buying only your state's minimum. Our guide on how much car insurance you need explains how to pick limits.

Uninsured and underinsured motorist coverage

Liability coverage protects other people from you. Uninsured motorist coverage protects you from other drivers who can't pay. That risk is real: the Insurance Research Council estimates that 15.4% of U.S. drivers were uninsured in 2023, more than one in seven.

• Uninsured motorist (UM) coverage reimburses you if an uninsured or hit-and-run driver hits you.
• Underinsured motorist (UIM) coverage pays when the at-fault driver has some insurance, but not enough to cover your loss.

Some states require these coverages; in others they are optional but inexpensive compared with the risk. Read more in our guide to uninsured motorist coverage.

Medical payments and personal injury protection (PIP)

Medical payments coverage pays to treat injuries to you and your passengers, regardless of who caused the crash. Personal injury protection works in a similar way in "no-fault" states and, according to the NAIC, can also cover lost wages and funeral costs up to your policy limit. If you live in a no-fault state such as Florida, PIP is part of the required minimum.

Collision and comprehensive: protecting your own car

These two coverages pay to repair or replace your car. If the insurer decides the car is a total loss, it pays the car's actual cash value, minus your deductible.

• Collision covers crashes with another car or an object, hitting a pothole and flipping over.
• Comprehensive covers non-crash damage, such as theft, hail, windstorm, flood, fire or a collision with an animal.

State law doesn't require either one, but if you have a car loan or lease, your lender will almost always require both until the loan is paid off. Both usually come with a deductible, and the NAIC notes that a higher deductible generally means a lower premium.

Optional coverages worth knowing

• Rental reimbursement pays for a rental car while your car is being repaired after a covered claim.
• Roadside assistance or towing reimburses towing and similar costs when your car breaks down or you are locked out. Check first whether a membership you already have, such as an auto club, includes it.
• GAP insurance covers the difference between what you owe on your loan and what your car is worth if it is totaled or stolen. The CFPB stresses that it is optional. See what GAP insurance is and whether you need it.

What a personal auto policy doesn't cover

The NAIC lists vehicles that need their own policies: motorcycles, ATVs, off-road vehicles, RVs and commercial vehicles. Personal policies also may not cover driving for a ride-sharing or delivery service, so tell your insurer if you do. Finally, coverage limits are hard ceilings: anything above them is your responsibility.

How to put it together

1. Start with your state's required coverages and your lender's requirements.
2. Choose liability limits that protect your savings, not just the legal minimum.
3. Add uninsured and underinsured motorist coverage, especially if you live in a state with many uninsured drivers.
4. Decide on collision and comprehensive based on your car's value and what you could afford to replace. Our guide to full coverage vs. liability helps with this choice.
5. Compare quotes with identical coverages and limits, then look for ways to lower your premium.