Most car and home insurers use proprietary credit-based scoring systems to decide whether to issue or renew a policy, and how much to charge. Insurance scores significantly affect premiums.
Mysterious and controversial, these systems have been in use since 1993, and supposedly predict whether an insured party will file claims, and their anticipated cost. Insurers believe they have statistical proof that individuals with poor insurance scores are also poor risks, and should pay higher premiums.
Several factors affect insurance rates besides one's credit-based risk score. For example, auto premiums typically (but not universally) depend upon:
Property hazard insurance rates commonly are based on:
Credit-based insurance scoring is different from and more arbitrary and complex than the more uniform credit reports used by banks and credit card issuers. Insurers use secret proprietary systems--often developed by Ph.D.-level mathematicians--and few reveal details about how they compute scores, nor do they disclose exactly what role they play in setting premiums. Consequently, it is impossible for an individual to know their score—and thus their rate—until they apply for coverage.
Before credit-based scoring took off, there were relatively few rating "tiers." Now, using credit-based scoring, insurers have hundreds of premium tiers.
Insurers contend that were they to abandon their proven systems, premiums would rise for 60 to 70 percent of their customers. According to the Insurance Information Insitute, "...actuarial studies show that how a person manages his or her financial affairs, which is what an insurance score indicates, is a good predictor of insurance claims." Exactly what "financial affairs" do insurers measure?
Insurance scoring models were created and sold by ChoicePoint and Fair Isaac Corppration (FICO), two large credit-gathering organizations. Some insurers developed their own systems. The models emphasize and analyze bits of credit data that to the average person would seem to have little to do with a driver’s likelihood of filing claims. There are no standards: each company uses different sophisticated modeling and actuarial techniques and weighs different credit-report data using complex formulas. According to the Federal Trade Commission, all states except Vermont and Pennsylvania in some way regulate the use of consumer credit information in insurance underwriting and rating.
Under the Fair Credit Reporting Act, insurance agents must ask permission of applicants before using credit information in quoting premiums. Expect higher premiums or denial of coverage when refusing to authorize a credit inquiry.
A poor credit-based score usually is associated with a poor “ordinary” credit rating. For example, an individual with delinquencies or a substandard bill-paying history may pay up to twice as much for auto or homeowners coverage, than if the score were excellent. Since scores are not easily available, and every insurer calculates them differently, it pays to shop and compare rates.
Further Information
Insurance Information Institute
National Association of Mutual Insurance Companies (NAMIC)