Can a Not-at-Fault Accident Raise Your California Car Insurance Premium?

In California, your insurer should not charge you more simply because you were involved in an accident that was not your fault. The California Department of Insurance says that an accident for which you were not at fault should not produce a surcharge. If you were at least 51% at fault, a premium increase can apply at renewal under the insurer’s rules.

That does not guarantee your total renewal price will stay exactly the same. Premiums can change for unrelated reasons. The useful first question is whether your insurer actually attributed a change to this accident.

How does California distinguish an at-fault accident?

The California Department of Insurance auto insurance guide explains the distinction: an accident that is not your fault does not justify charging you more for that accident, while an accident where you were at least 51% at fault may lead to a renewal surcharge. Fault is a question of responsibility for the accident, not merely whether someone filed an insurance claim.

Reporting a loss and being found principally at fault are different things. If the driver who hit you was responsible, ask the insurer how fault was recorded rather than assuming a claim automatically hurts your rate.

Why might my premium still rise after an accident I did not cause?

The timing of a premium increase does not by itself prove that an accident caused it. California auto rates also depend on factors such as driving safety record, annual mileage, years of driving experience, and other permitted rating factors. A change affecting the insurer’s rates or a change to your policy may occur near the same time as a not-at-fault claim.

Ask for a comparison of the previous and renewal declarations or rating explanation. Look for changes to coverage limits, drivers, vehicles, annual mileage, deductibles, discounts, and any accident surcharge. These facts help separate an accident-rating dispute from an ordinary renewal change.

How can you check whether the accident was rated correctly?

1. Ask whether the insurer marked you at fault. Request the recorded fault determination and any surcharge explanation associated with the claim.
2. Check what changed at renewal. Compare the prior premium and declarations against the renewal notice, noting changes unrelated to the accident.
3. Challenge inaccurate information. If the insurer assigned fault incorrectly or relied on an error in your driving history, request a review and provide supporting records.
4. Compare like for like. If you shop for another policy, keep limits, deductibles, listed drivers, vehicles and mileage consistent so a lower quote does not hide reduced coverage.

What if another driver had no insurance?

That creates a separate coverage question. Uninsured or underinsured motorist protection and collision coverage may help in different situations, depending on your policy. A not-at-fault determination does not guarantee every type of loss is covered, and coverage for your own vehicle is separate from whether the insurer may surcharge the accident. See our California uninsured motorist coverage explanation.

Should you switch insurers after a not-at-fault claim?

Shop when you have a good reason to compare, especially if the renewal amount or coverage terms changed. Tell each insurer the accident details truthfully, ask how the recorded fault affects the quote, and compare equal limits and deductibles. Changing insurers is not a substitute for correcting a mistaken fault record.

For broader context about California’s rating factors, read What affects car insurance rates in California? The California Auto Insurance guide explains shopping choices and state requirements. When you’re ready to compare, start an Auto insurance request with Ensurance and include the renewal or quote you’re comparing.

Primary source: California Department of Insurance, Automobile Insurance Guide.