Full Coverage vs. Liability Only: Which Do You Need?

What Liability-Only Coverage Includes

Liability-only is the minimum insurance that every state requires drivers to carry. It consists of two components:

Bodily injury liability (BI) pays for medical expenses, lost wages, and legal costs when you injure another person in an accident that is your fault. Limits are expressed as two numbers, such as 50/100, meaning $50,000 per person and $100,000 per accident.

Property damage liability (PD) pays to repair or replace another person's vehicle or other property — a fence, a mailbox, a storefront — when you cause the damage. A typical limit might be $50,000 per accident.

Both coverages protect other people from your mistakes. Neither one pays a cent toward your own vehicle.

State minimums are often low enough that a single serious accident can exhaust them, leaving you personally responsible for the remainder. Carrying limits above the state minimum is almost always worth the modest additional premium.

What Full Coverage Adds

"Full coverage" is not a defined insurance term. In practice it refers to a policy that combines liability with two additional coverages that protect your own vehicle:

Collision coverage pays to repair or replace your car after it is damaged in a crash — whether you hit another vehicle, a guardrail, or a telephone pole. It applies regardless of fault. You pay your deductible first; the insurer covers the rest up to the vehicle's actual cash value (ACV).

Comprehensive coverage pays for damage caused by events other than a collision: theft, vandalism, fire, flood, hail, falling objects, and animal strikes. Like collision, it is subject to your deductible and capped at ACV.

Together, collision and comprehensive close the gap that liability-only leaves wide open. Without them, any damage to your own car — whether from an at-fault accident or a hailstorm — is your problem entirely.

When Lenders Require Full Coverage

If you financed your vehicle with an auto loan or are leasing it, full coverage is not optional — it is a contractual requirement. Your lender has a financial interest in the vehicle until the loan is satisfied, and they protect that interest by requiring you to maintain collision and comprehensive throughout the loan term.

Specific requirements vary by lender but typically include:

• Collision and comprehensive with a deductible no higher than $500 or $1,000
• The lender listed as a lienholder or loss payee on the policy
• Proof of coverage at origination and upon renewal

If you drop the required coverages, the lender can purchase force-placed insurance on your behalf — at your expense — and those policies are almost always far more expensive than what you could buy on your own.

Once the loan is paid off, the requirement disappears. At that point the choice is yours, and the decision framework below applies.

Decision Framework: Should You Drop Collision and Comprehensive?

Once you own the vehicle outright, run through these two tests before changing your coverage.

The 10 Percent Premium Test

Look up your car's actual cash value using a tool like Kelley Blue Book or NADA Guides. Then find the annual cost of your collision and comprehensive premiums (not your full policy — just those two coverages).

If that annual premium exceeds 10 percent of the vehicle's ACV, you are likely paying more than the coverage is worth in expected value. That is often a signal to consider dropping those coverages.

Example: A vehicle worth $6,000 with collision and comprehensive costing $800 per year. $800 is more than 10 percent of $6,000, so dropping the coverages deserves serious consideration.

The Replacement Cost Test

Before dropping coverage, ask yourself honestly: if the car were totaled tomorrow, could you replace it or manage without it?

If the answer is no — you depend on the vehicle and do not have savings to cover a replacement — keep the coverage regardless of what the premium test says. The premium test is a mathematical shortcut, not a substitute for assessing your actual financial resilience.

Conversely, if you have an emergency fund large enough to absorb the loss, and the car's value is low enough that a payout would be modest anyway, carrying collision and comprehensive may be redundant.

Practical guidance: Drivers with vehicles worth less than $4,000 and a solid emergency fund often find it makes sense to carry liability only. Drivers with vehicles worth more than $10,000 should generally keep full coverage unless their finances are unusually strong.

Coverage Comparison

Situation	Liability Only	Full Coverage
You injure someone in an at-fault accident	Covered (BI)	Covered (BI)
You damage another car or property	Covered (PD)	Covered (PD)
Your car is damaged in an at-fault accident	Not covered	Covered (collision)
Your car is damaged in a not-at-fault accident	Not covered	Covered (collision)
Your car is stolen	Not covered	Covered (comprehensive)
Your car is damaged by hail, flood, or fire	Not covered	Covered (comprehensive)
A deer strikes your car	Not covered	Covered (comprehensive)
Monthly premium	Lower	Higher
Required by lender	No	Yes, if vehicle is financed

A Note on Gap Insurance for Financed Vehicles

If you bought a new or recent used vehicle with a loan and are carrying full coverage, consider gap insurance as well.

When a vehicle is totaled, the insurer pays its actual cash value at the time of the loss — not what you paid for it and not what you still owe. New vehicles depreciate sharply in the first year or two, which means your loan balance can easily exceed the vehicle's ACV. That difference, called the gap, comes out of your pocket unless you have gap coverage.

Gap insurance pays off that difference so you are not left making loan payments on a car you no longer have. It is most relevant in the first few years of a loan, particularly when you made a small down payment or financed over a long term.

Once the loan balance falls below the vehicle's ACV — which you can verify by comparing your payoff statement against the car's current market value — gap coverage is no longer necessary.