Physical Damage Guide

Comprehensive vs. Collision Insurance: What Each Actually Covers

Published: August 16, 2026 • 6 min read • ISO & III Sourced

Collision coverage pays to repair or replace your vehicle when it strikes another vehicle, hits a stationary object (like a light pole, pothole, or guardrail), or rolls over. Comprehensive coverage (frequently labeled "Other Than Collision" or "OTC" on declaration pages) pays for damage caused by unpredictable non-crash events: theft, vandalism, weather storms, hail, falling trees, animal collisions, and windshield damage.

Together, these two coverages make up what is colloquially known as "full coverage." Neither is required by state law, but auto lenders and leasing companies mandate both until the vehicle loan or lease is paid off.

1. Peril Comparison Matrix

Under standard Insurance Services Office (ISO) personal auto policy contracts, claims are categorized as follows:

Event / Peril	Coverage Type	Deductible Applied?	At-Fault Impact on Rates
Rear-ending another car	Collision	Yes ($500 / $1,000)	Yes (At-Fault)
Hitting an animal / deer	Comprehensive	Yes ($250 / $500)	Generally No (Not-At-Fault)
Vehicle stolen / catalytic converter theft	Comprehensive	Yes ($250 / $500)	No (Not-At-Fault)
Hail damage / Tornado / Flood	Comprehensive	Yes ($250 / $500)	No (Act of God)
Backing into a parking garage pillar	Collision	Yes ($500 / $1,000)	Yes (At-Fault)

2. How Deductibles Impact Physical Damage Pricing

A deductible is the dollar amount you pay out of pocket before insurance benefits kick in. For example, if a hail storm causes $4,200 in body damage and your comprehensive deductible is $500, your carrier pays $3,700 and you pay $500 to the repair facility.

The $500 vs $1,000 Deductible Decision:

Raising your collision deductible from $500 to $1,000 typically reduces annual physical damage premiums by 15% to 30%. However, you must maintain sufficient liquid emergency savings to pay the higher $1,000 out-of-pocket cost if an accident occurs.

3. Zero-Deductible Windshield Laws by State

Several states (including Florida, Kentucky, and South Carolina) legally require auto insurers to repair or replace damaged safety glass with zero deductible under comprehensive coverage. In states like Arizona and Connecticut, carriers offer optional zero-deductible glass endorsements.

Check Your Deductibles Across Competing Quotes

Use our free multi-quote normalizer to audit collision and comprehensive deductibles side-by-side across carriers like Geico, Progressive, and State Farm.

Normalize Quotes (3+ Carriers) Audit Policy Replacement

Frequently Asked Questions

What is the main difference between collision and comprehensive car insurance?

Collision insurance pays for damage to your vehicle resulting from an impact with another car, object (tree, guardrail, fence), or a vehicle rollover. Comprehensive insurance (also called Other Than Collision) pays for vehicle damage caused by non-collision events such as theft, vandalism, hail, falling trees, animal strikes (e.g. deer), fire, flood, and windshield cracks.

Do comprehensive and collision coverages have separate deductibles?

Yes. On an auto insurance declaration page, Comprehensive and Collision are listed as separate line items, each with its own out-of-pocket deductible (commonly $250, $500, or $1,000). You pay the specified deductible per claim before the insurer covers the remaining repair cost up to the Actual Cash Value.

Is hitting a deer considered comprehensive or collision?

Hitting an animal (such as a deer, bird, or stray livestock) is classified as a Comprehensive (Other Than Collision) claim under standard ISO auto policy contracts, because animal movements are considered unpredictable natural hazards.

What is Actual Cash Value (ACV) for physical damage claims?

Actual Cash Value (ACV) is the maximum payout an insurer will provide if your car is totaled or stolen. It equals the pre-accident fair market value of the vehicle, accounting for age, mileage, wear and tear, minus your policy deductible.