Full coverage vs liability-only car insurance: cost and when to switch (2026)
Full coverage costs $1,771/yr vs $644/yr for liability-only. Here's the break-even formula for deciding when to drop comprehensive and collision.
The standard rule of thumb: drop collision coverage when annual premium exceeds 10% of the vehicle's actual cash value (ACV). If your car is worth $8,000 and collision costs $700/yr, that's 8.75% — borderline. At $6,000 ACV with $700/yr collision, that's 11.7% — drop it.
Comprehensive coverage is cheaper ($168/yr avg) and covers non-collision events (theft, weather, animals). It's typically worth keeping even on older vehicles unless the car is nearly worthless — a hailstorm can total a $5,000 car.
If you have a car loan or lease, you're required to carry full coverage. The lender or lessor has a financial interest in the vehicle and mandates comprehensive and collision. Once the loan is paid off, you regain the choice.
Last updated 2026-04-01 · NAIC Auto Insurance Report 2023
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FAQ
When should I drop full coverage?
The 10% rule: if annual collision premium exceeds 10% of your car's actual cash value (ACV), dropping it makes financial sense. At $700/yr collision and a $6,000 ACV, you'd need to go 8.6 years without an at-fault collision to break even — rarely worth it.
What does liability-only insurance cover?
Liability covers damage you cause to others — their car, property, and medical bills. It does not cover your own vehicle, your medical bills, or any uninsured motorist damage to you. You are completely unprotected for your own car with liability-only.
What's the difference between collision and comprehensive?
Collision covers damage from hitting another vehicle or object. Comprehensive covers everything else — theft, weather damage, fire, hitting an animal, vandalism. Both have deductibles; you choose the deductible amount.
What deductible should I choose for collision?
A higher deductible (e.g., $1,000 vs $500) lowers your premium but increases out-of-pocket cost after an accident. Choose a deductible you could comfortably pay out of an emergency fund. Most advisors recommend $500–$1,000.
Sources
For general guidance only — individual results vary. Not financial, legal, or tax advice.