How Insurance Bad Faith Is Proven in California
These cases are won inside the insurer's own paperwork. The denial letter is the least informative document in the file; what matters is everything behind it.
The claim file and the log notes
The adjuster's log notes are usually the single most valuable document — a contemporaneous record of what the insurer knew, when, and what it decided to do about it. Requesting the complete claim file early is standard practice for a reason.
The insurer’s own standards
Internal claims manuals and guidelines set out how the company said claims should be handled. A denial that departs from the insurer's own written standards is considerably harder to defend as reasonable.
Comparison and incentives
How similar claims were treated, and whether adjuster compensation or targets were tied to reducing payouts, both go to whether a denial reflected an honest assessment or a business practice.
The regulations as a yardstick
California's Fair Claims Settlement Practices Regulations set out what proper handling looks like. They create no private right of action, but they are a standard against which conduct can be measured.
What to keep on your side
The policy and all endorsements, every denial and reservation-of-rights letter, your proof-of-loss submissions, and a dated timeline of calls and correspondence. That timeline is often what makes delay visible.
Common questions
Can I get the insurer’s claim file?
It is generally discoverable in a bad-faith case, subject to privilege arguments. It is usually where the case is made.
What should I be keeping now?
Everything — the policy, every letter, your submissions, and a dated log of every call. Delay is proven with timelines.
Is your insurer treating you unfairly?
A free, confidential review can tell you whether what happened crosses the line — no cost, no obligation.
Related California law
Official sources
General information about California law, not legal advice. Every policy and every claim is different.