One of the first choices you make when buying auto insurance is how much coverage to carry. The two broad options — liability-only and full coverage — protect very different things. Understanding the difference helps you avoid both overpaying and being dangerously underinsured.
What liability coverage is
Liability coverage pays for damage and injuries you cause to other people and their property. It is required in almost every state and comes in two parts:
- Bodily injury liability — covers others’ medical costs when you are at fault
- Property damage liability — covers damage you cause to other vehicles or property
Critically, liability does not pay to repair your own car or cover your own injuries. If you cause an accident, you are on your own for your vehicle.
What “full coverage” adds
“Full coverage” is not an official policy type — it is shorthand for liability plus two additional protections for your own vehicle:
- Collision — pays to repair or replace your car after a crash, regardless of fault
- Comprehensive — covers non-collision damage like theft, vandalism, fire, hail, and hitting an animal
Full coverage may also include or bundle extras like uninsured-motorist protection, depending on the carrier and state.
When full coverage makes sense
- You are financing or leasing — lenders almost always require it
- Your car is newer or still holds significant value
- You could not comfortably afford to replace your car out of pocket
- You live where theft, weather, or animal collisions are common
When liability-only may be enough
- Your car is older and worth only a few thousand dollars
- You own the car outright with no loan or lease
- You have enough savings to repair or replace the car yourself
A simple rule of thumb
Compare your annual full-coverage cost to your car’s value. If collision and comprehensive together cost more than about 10% of what your car is worth, the extra coverage may not be worth it — you could be paying more in premiums than you would ever recover in a claim.
Don’t skimp on liability limits
Whichever route you choose, avoid carrying only your state’s bare-minimum liability limits if you can help it. A serious at-fault accident can easily exceed low limits, leaving you personally responsible for the difference. Higher liability limits are often surprisingly affordable.
Compare both side by side
The easiest way to decide is to price both. On EzRatesAuto you can toggle between liability-only and full coverage and adjust your deductible to see how each choice changes your estimate across 20+ carriers — then confirm the final rate with the carrier you choose.