Car Insurance in California: Rates, Rules & Requirements

California has the most regulated car insurance market in the country, with unique rules that affect how rates are set and what discounts are available. Understanding these rules helps California drivers save money.

California Minimum Insurance Requirements

California requires all drivers to carry at least 15/30/5 liability coverage:

Coverage Type	Minimum Required	What It Covers
Bodily Injury Liability	$15,000 per person / $30,000 per accident	Medical expenses for others you injure
Property Damage Liability	$5,000 per accident	Damage you cause to others' property

Our recommendation: California minimums are among the lowest in the nation. $5,000 in property damage won't cover a single fender-bender on a modern car. We recommend at least 100/300/100 — the cost difference is small compared to the financial protection.

Proposition 103: California's Unique Insurance Law

California's Proposition 103 (1988) fundamentally changed how insurance rates are set. Key provisions:

Credit Scores Cannot Be Used

Unlike most states, California insurers cannot use credit scores to set rates. This is a significant consumer protection — drivers with lower credit don't pay more.

Accidents Have Limited Impact

Insurers cannot surcharge for a not-at-fault accident. Even at-fault accident surcharges are restricted — they cannot exceed the premium increase that would have applied if the accident hadn't occurred (essentially, no "penalty" premium).

Good Driver Discount Is Required

Prop 103 requires insurers to offer a minimum 20% discount to drivers who:

• Have been licensed for 3+ years
• Have no at-fault accidents in 3+ years
• Have no more than 1 point on their driving record in 3 years

Mileage Matters

Insurers must offer discounts for low-mileage drivers. If you drive less than the average, ask about this.

Average Car Insurance Costs in California

Coverage Level	Avg. Annual Cost
Minimum (15/30/5)	$600 – $800
Full Coverage	$2,200 – $3,200

Average Rates by City

City	Avg. Annual (Full Coverage)
Fresno	$1,900
San Diego	$2,100
Los Angeles	$2,800
San Francisco	$2,600
Bakersfield	$2,000

Cheapest Insurers in California

Insurer	Avg. Annual (Full Coverage)
USAA (military)	$1,500 – $1,900
Wawanesa	$1,600 – $2,100
GEICO	$1,700 – $2,300
State Farm	$1,800 – $2,400
Progressive	$2,000 – $2,600

California Insurance Laws You Should Know

Financial Responsibility Law

If you cause an accident, California requires you to show financial responsibility for damages. The minimum way to comply is 15/30/5 liability coverage. You can also post a $35,000 bond or deposit with the DMV, but insurance is far more practical.

Uninsured Motorist Coverage

Insurers must offer UM/UIM coverage. You can reject it in writing, but with California's high uninsured driver rate (around 16%), it's strongly recommended.

No-Fault Accidents Don't Raise Rates

Under Prop 103, your insurer cannot raise your premium because of an accident that wasn't your fault. This is a major protection California drivers should know about.

Rate Increases Require Approval

Unlike most states, California insurers must get approval from the Department of Insurance before raising rates. This limits (but doesn't eliminate) premium increases.

California Discounts to Ask About

• Good driver discount — required by Prop 103 (minimum 20%)
• Low mileage discount — required to be offered
• Multi-policy discount — bundle with renters/homeowners
• Multi-vehicle discount — insure more than one car
• Defensive driving discount — complete an approved course
• Good student discount — B average or better
• Anti-theft device discount — alarm, tracker, immobilizer
• Professional/affinity discounts — alumni, employer, organization

Frequently Asked Questions

Is car insurance more expensive in California?

California rates are above the national average but not the highest. Full coverage averages $2,200–$3,200/year — cheaper than Florida or Michigan, but more expensive than Ohio or Maine. Your city and driving record have a bigger impact than the state average.

Can California insurers use my credit score?

No. Under Proposition 103, California insurers cannot use credit scores to set rates. This is one of the strongest consumer protections in the country.

What happens if I drive without insurance in California?

First offense: $100–$200 fine. Second offense within 3 years: $200–$500 fine plus possible vehicle impoundment. You may also face license suspension. The financial responsibility for any accident you cause falls entirely on you.