When you shop for car insurance, you will see two main options: full coverage and liability-only. The difference can be $800 to $1,200 per year. Knowing which one you actually need can save you money without leaving you exposed to a financial loss you cannot afford.
What Is Liability Car Insurance?
Liability insurance covers the damage and injuries you cause to other people and their property when you are at fault in an accident. It does not cover your own vehicle or your own medical bills.
Every state except New Hampshire requires drivers to carry a minimum amount of liability coverage. These minimums are usually expressed as three numbers, like 25/50/25:
- 25 = $25,000 per person for bodily injury
- 50 = $50,000 total per accident for bodily injury
- 25 = $25,000 for property damage
State minimums are often not enough. A serious accident with injuries can easily exceed $50,000 in medical costs. If your liability coverage runs out, you pay the rest out of pocket. Most financial advisors recommend at least 100/300/100 coverage.
What Is Full Coverage Car Insurance?
Full coverage is not a single policy type. It is a combination of liability plus two additional coverages:
- Collision: Pays to repair or replace your car after a crash with another vehicle or object, regardless of who is at fault.
- Comprehensive: Pays for damage from events other than collisions — theft, vandalism, hail, flood, fire, and animal strikes.
When a lender or leasing company says you are required to carry full coverage, this is what they mean. They require it because your car is collateral for the loan. If you total the car, they want to know it will be repaired or replaced.
Full Coverage vs Liability: Key Differences
| Feature | Liability Only | Full Coverage |
|---|---|---|
| Covers other driver’s injuries/damage | Yes | Yes |
| Covers your car after a crash | No | Yes (collision) |
| Covers theft, hail, flood | No | Yes (comprehensive) |
| Required by law | Yes (minimums) | No (unless you have a loan/lease) |
| Average annual cost | ~$635 | ~$1,760 |
When You Need Full Coverage
Full coverage is required — not optional — in these situations:
- You have a car loan: Your lender requires it until the loan is paid off.
- You are leasing a car: Leasing companies require full coverage, often with lower deductibles than you might otherwise choose.
Full coverage also makes sense when:
- Your car is less than five years old or worth more than $10,000
- You could not afford to replace or repair your car out of pocket
- You live in an area with high theft rates, severe weather, or high deer populations
- You drive frequently or have a long commute
When Liability-Only May Be Enough
If all of these are true, dropping collision and comprehensive coverage may make financial sense:
- Your car is paid off (no lender requirement)
- Your car is worth less than $4,000 to $6,000
- You have enough savings to replace the car if it is totaled
- You rarely drive or have a very short commute
The test: if your annual collision and comprehensive premium is more than 10% of your car’s value, you are likely over-insured. For example, if your car is worth $4,000 and you are paying $600/year for collision and comprehensive, that is 15% of the car’s value — dropping those coverages and self-insuring might make sense.
How to Check If Your Car Is Worth Insuring Fully
- Look up your car’s current market value on Kelley Blue Book (kbb.com) or Edmunds.
- Get your current premium for collision and comprehensive coverage from your policy declarations page.
- Add your deductible to the premium.
- If that total is close to the car’s value, full coverage provides little net benefit.
Example: Car worth $5,000. Annual collision + comprehensive premium: $700. Deductible: $500. If the car is totaled, you get $5,000 − $500 = $4,500. You paid $700 in premiums to protect $4,500 of value. That may or may not be worth it depending on your financial cushion.
The Role of Your Deductible
Your deductible is the amount you pay out of pocket before insurance covers the rest. Common deductibles are $500, $1,000, or $2,000. A higher deductible means lower premiums — going from $500 to $1,000 typically saves 7–10% on collision and comprehensive costs.
Only choose a high deductible if you have savings to cover it. If your deductible is $1,000 but you do not have $1,000 in an emergency fund, that deductible is effectively unaffordable. See our guide on how to build an emergency fund if you are not there yet.
For a full list of the best-priced insurers, see our guide to the best car insurance companies for 2026. If you are under 25 and looking for the lowest available rates, see cheapest car insurance for young drivers.
Frequently Asked Questions
Is full coverage required by law?
No. States require liability coverage, not full coverage. Full coverage (collision + comprehensive) is required only by lenders and leasing companies when you have a loan or lease on the vehicle.
What happens if I only have liability and I am in an accident?
If you caused the accident, liability pays for the other driver’s damage and injuries but nothing for your own car. You pay your own repair or replacement costs out of pocket. If the other driver caused the accident, their liability coverage pays for your damages.
How much liability coverage do I actually need?
Most financial advisors recommend at least 100/300/100 — $100,000 per person, $300,000 per accident for bodily injury, and $100,000 for property damage. State minimums are typically far too low to fully protect you in a serious accident.
Does full coverage cover a stolen car?
Yes. Comprehensive coverage (part of full coverage) covers theft. Collision coverage does not — collision only covers crashes.
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