Plain Policy Guide
Coverage Basics

Full Coverage vs. Liability Insurance: What's the Difference?

Liability-only insurance covers damage you cause to others. Full coverage adds collision and comprehensive for your own car. Here is what each costs and how to decide.

By Plain Policy Guide Editorial Team Published 3 min read

The biggest decision on most car insurance quotes is whether to buy liability-only coverage or "full coverage." The price difference can be more than a thousand dollars a year, so it is worth understanding exactly what you get for the extra money.

The difference in one sentence

Liability-only insurance pays for the injuries and damage you cause to other people. Full coverage adds collision and comprehensive, which pay to repair or replace your own car.

Liability-onlyFull coverage
Injuries you cause to othersYesYes
Damage you cause to others' propertyYesYes
Damage to your car in a crashNoYes (collision)
Theft, hail, flood, fire, animal strikesNoYes (comprehensive)
Meets state legal requirementYes, if limits meet the minimumYes
Meets typical lender requirementNoYes

"Full coverage" doesn't mean everything is covered

The NAIC's auto insurance shopping tool points out that there is no such thing as "full coverage" as an official insurance product. It is a shorthand that insurers and lenders use for liability plus collision and comprehensive. A full-coverage policy still has limits and deductibles, and it doesn't include extras such as rental reimbursement, roadside assistance or GAP insurance unless you add them.

How much more full coverage costs

According to Experian's marketplace data as of September 2026, the national average is:

Coverage levelAverage per yearAverage per month
Minimum coverage$1,584$132
Full coverage$2,912$243

Source: Experian, data as of September 2026. Your price depends on your state, record, vehicle and insurer.

The gap of roughly $1,300 a year is the price of protecting your own car. Whether that is a good deal depends on what your car is worth and what you could afford to lose.

When you must carry full coverage

No state requires collision or comprehensive coverage. But if you have a car loan or lease, the lender owns part of the car and will almost always require both until the loan is paid off. If you let them lapse, the lender may buy expensive coverage on your behalf and add it to your loan, so check your loan agreement before you change anything.

If you owe more than the car is worth, also look at GAP insurance. Full coverage pays only the car's actual cash value if it is totaled, which can be less than your loan balance.

When dropping to liability-only makes sense

The NAIC suggests comparing your car's value and what it would cost to repair or replace it against the savings from dropping coverage. A practical way to do this:

  1. Estimate your car's current value using a pricing guide.
  2. Subtract your deductible. That is roughly the most the insurer would pay if the car were totaled.
  3. Ask your insurer what collision and comprehensive cost you per year.
  4. Compare. If you are paying a large share of the maximum payout every year, and you have savings to replace the car, liability-only may be the better deal.
A middle option

You don't have to drop both at once. Keeping comprehensive while dropping collision protects against theft, hail and flood at a lower cost. Raising your deductible is another way to cut the price while keeping protection.

If you have a DUI or need an SR-22

An SR-22 or FR-44 filing certifies liability coverage, so a liability-only policy at the required limits usually satisfies it. Because premiums are much higher after a serious violation, some drivers choose liability-only to keep costs manageable during the filing period. Just remember that you would then pay for any damage to your own car yourself. See what SR-22 insurance costs.

How to decide

  • Choose full coverage if you have a loan or lease, if your car is new or valuable, or if you couldn't afford to replace it.
  • Consider liability-only if your car is older and paid off and you have enough savings to repair or replace it.
  • Either way, don't skimp on liability limits. They protect your savings and income, not your car. See how much car insurance you need.
Next guideHow Much Car Insurance Do You Need?

Frequently asked questions

Is full coverage required by law?

No state requires collision or comprehensive coverage. State laws require liability coverage (and in some states uninsured motorist or PIP coverage). Lenders and leasing companies, however, usually require collision and comprehensive until the loan is paid off.

When should I drop full coverage?

Consider it when your car is paid off and its value is low enough that you could repair or replace it from savings. Compare the yearly cost of collision and comprehensive with what the insurer would actually pay after your deductible if the car were totaled.

Does full coverage cover a rental car or towing?

Not automatically. Rental reimbursement and roadside assistance are separate optional coverages. Check your declarations page to see which ones you have.

Does full coverage pay off my car loan if the car is totaled?

It pays the car's actual cash value, minus your deductible, which can be less than what you owe. GAP insurance is designed to cover that difference.

Sources

  1. What Does Auto Insurance Cover? (June 11, 2026), NAIC
  2. A Shopping Tool for Auto Insurance, NAIC
  3. Does your vehicle have the right protection? Best practices for buying auto insurance, NAIC
  4. Average Cost of Car Insurance (data as of September 2026), Experian
  5. What is Guaranteed Asset Protection (GAP) insurance?, Consumer Financial Protection Bureau

Sources were checked on October 14, 2026. Laws, fees and prices change; always confirm with your state agency or insurer.

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