Twenty Percent Below What, Exactly?

"Twenty percent off" invites an obvious question: off what? A discount measured against an inflated number would be worth little. California's statute and its regulation both answer the question, and the answers fit together.

Two sources, one floor

Insurance Code section 1861.02(b)(2) says the rate for a Good Driver Discount policy "shall be at least 20 percent below the rate the insured would otherwise have been charged for the same coverage," and that it must still comply with the three-factor order in subdivision (a).

The regulation, 10 CCR 2632.12(a), says every insurer must set its rates so that a good driver "shall be charged a rate that is at least 20 percent less than the lowest rate available to a comparable driver who is not a good driver." It then fixes the order of operations: the discount "must be applied after the total premium is developed under the class plan, including any policy fees that apply to the issuance of the policy."

What "the lowest rate available" adds

The statute compares you with yourself: what you would otherwise have been charged for the same coverage. The regulation tightens the benchmark. The comparison is with the lowest rate available to a comparable driver who does not qualify, so the starting point cannot be padded to make the discount look generous. The regulation doesn't define "comparable" further; read plainly, it means the same coverage on the same kind of risk, apart from Good Driver status.

Why the fees sit inside the calculation

Some policies carry fees for issuing the policy. Because the regulation applies the discount after the total premium is developed, including those issuance fees, the 20 percent floor is measured on the whole figure rather than on a slice of it. That is one reason a fee-heavy quote and a fee-free quote need to be compared on their totals.

What the 20 percent is not

• Not a fixed dollar amount. It is a floor on a percentage, so its value depends on everything else about your policy.
• Not a cap. "At least" means a company's approved plan may give more.
• Not a comparison between companies. A good driver at one company can still pay more than a non-good driver at another, because each company's base rates differ. The floor operates inside each company's own rates.
• Not a reason to stop comparing. Every company must give the discount to people who qualify, so the companies compete on what sits underneath it.

How to see it on your own policy

Ask the company to confirm in writing that your policy is a Good Driver Discount policy. If you think you crossed the line recently, because a point aged out of the three-year window or you passed three years licensed, ask for the policy to be re-rated rather than waiting. Our page on how Good Driver points are counted helps you check where you stand first.

Because the discount is universal, the useful comparison is between the rates it is applied to. Compare Good Driver quotes on identical coverage.