Full Coverage vs. Liability Only: Cost and When to Switch

Liability-only insurance pays for injuries and damage you cause to other people, while full coverage adds collision and comprehensive so your own car is covered too. In our model, a sample 35-year-old driver at typical U.S. prices is estimated at about $225 a month for full coverage, compared with about $84 for liability only at the same 100/300/100 limits and about $60 for a state-minimum policy. Lenders and leasing companies usually require full coverage while you owe money on the car, and it gets harder to justify as the car loses value.

What is full coverage car insurance?

"Full coverage" is not a legal term or a policy you can buy by name. It is shorthand for a policy that combines liability with collision and comprehensive, often with uninsured motorist coverage and anything your state requires, such as personal injury protection (PIP).

Full coverage does not mean everything is covered. It still has limits and deductibles, and it does not include rental reimbursement, roadside assistance or gap coverage unless you add them. It also does not pay for wear and tear or mechanical breakdowns.

What does full coverage insurance cover?

What does liability-only insurance cover?

Liability-only covers the harm you do to others, up to your limits: their medical bills, lost wages and car repairs, plus the cost of defending you if they sue. It is the coverage nearly every state requires.

What it does not cover:

• Repairs to your own car after a crash you cause
• Theft of your car, or hail, flood or fire damage to it
• Your own medical bills, unless you also carry PIP, MedPay or uninsured motorist coverage

A liability-only policy meets your state's legal requirement as long as it has the minimum limits plus any coverage your state adds, such as PIP or uninsured motorist. Our guide to minimum car insurance by state lists each state's rules. How much liability you carry matters as much as whether you add full coverage, so it is worth reading how much car insurance you need before you decide.

How much is full coverage vs. liability insurance?

Here is how our model compares the options for one sample driver at typical U.S. prices: a 35-year-old with a clean record and good credit, driving a 3-to-5-year-old mid-size sedan, with no discounts. The state-minimum row leaves out optional uninsured motorist coverage; the other rows include it at limits that match 100/300/100.

In our model, adding collision and comprehensive to the sample driver's 100/300/100 liability policy adds about $141 a month, or about $1,690 a year. Compared with a state-minimum policy, the full-coverage estimate is about $165 a month higher. These are estimates, not prices from an insurer, and your age, record, car and state can move them a lot.

National averages from published studies

Publishers that study insurer prices also put full coverage well above minimum or liability-only coverage, though each one prices a different driver, car and deductible.

Because the profiles differ, compare the gap within each row rather than across rows. Our average car insurance cost guide goes deeper on what drivers pay.

Is full coverage worth it?

It depends on three things: what your car is worth, whether you owe money on it, and whether you could pay for repairs or a replacement yourself.

When you need full coverage

If you have a car loan or lease, the lender or leasing company will usually require collision and comprehensive until the loan is paid off or the lease ends. California's Department of Insurance consumer guide (revised 2025) notes that if you do not buy the coverage, the lender may buy it for you and charge you.

If you owe more than the car is worth, gap coverage pays the difference after a total loss. In Insurance.com's 2025 price figures for 25 insurers, adding gap coverage raised the yearly premium by a median of about $71.

When full coverage usually makes sense

• Your car is newer or would be expensive to repair or replace.
• You could not cover a big repair bill or a replacement from savings.
• Your car often sits where theft, hail or flooding is a real risk.

When liability only may be enough

• The car is paid off and worth little.
• You have enough savings to repair or replace it yourself.
• Each year, collision costs more than about 10% of what the car is worth.

When to drop collision: the 10% rule

A common rule of thumb: if collision costs more each year than about 10% of your car's value, consider dropping it. Collision pays at most the car's market value minus your deductible, so the lower the car's value, the less the coverage can ever return.

Here is how that works in our model for the same sample driver with a 10-to-14-year-old car.

With collision at about $734 a year, the 10% rule suggests dropping it once the car is worth less than about $7,300. If the car is worth $5,000, a total loss would pay at most $4,500 after a $500 deductible, while collision costs about $734 for every year you keep it.

The California guide above also suggests thinking about dropping comprehensive or collision on an older car. Before you do, make sure the loan is paid off and that you could replace the car from savings if it were totaled.

Comprehensive only: a middle option

You do not have to choose between everything and nothing. For a car you own outright, one middle option is to keep liability and comprehensive and drop collision (lenders expect both). Comprehensive costs much less than collision: in our model it is about $42 a month for the sample driver, versus about $99 for collision.

Comprehensive still covers theft, vandalism, fire, flood, hail, falling objects, animal strikes and glass, but not crash damage to your car. For the older car in the table above, keeping comprehensive puts the estimate at $1,324 a year instead of $2,058 for full coverage. Our guide to comprehensive vs. collision explains each one in detail.

How to switch from full coverage to liability

1. Confirm the loan or lease is paid off and you have the title.
2. Look up the car's current market value in a pricing guide.
3. Compare that value with the yearly cost of collision and comprehensive on your declarations page, or try both setups in the calculator above.
4. Ask your insurer to remove collision, and decide separately whether to keep comprehensive.
5. Keep liability and uninsured motorist limits high enough to protect your savings.

Raising your deductibles is another middle ground, since it lowers the cost without dropping coverage. See how to choose a car insurance deductible.

Common questions

Is full coverage required by law?

No state requires collision or comprehensive. Nearly every state requires liability insurance, and some add PIP, MedPay or uninsured motorist coverage. Full coverage is a lender or lease requirement, not a legal one.

How much does full coverage cost per month?

In our model, the sample driver's estimate is about $225 a month, with a range of $193 to $257 at typical U.S. prices. The three published 2026 national figures in the table above run from $187 a month (Insurify, October) to about $215 a month (Insurance.com).

How much is liability-only insurance?

In our model, the sample driver's estimate is about $60 a month for a state-minimum policy and about $84 a month at 100/300/100 with matching uninsured motorist coverage. Among the published 2026 national figures above, Insurance.com puts state-minimum coverage at $738 a year and NerdWallet at $650 a year.

Should I drop full coverage when my car is paid off?

Not automatically. Once the loan is gone, compare the yearly cost of collision and comprehensive with the car's value and with what you could afford to replace. The 10% rule is a quick first test.

Does liability-only insurance cover theft?

No. Theft of your car is covered by comprehensive. With liability only, you would pay to replace a stolen car yourself.