Does Your Credit Score Affect Car Insurance? State Rules & Score Tiers (2026 Guide)

1. Why Insurance Underwriters Care About Credit

Most consumers are shocked to discover that in the majority of US states, their credit history exerts a heavier influence over their auto insurance rate than their annual driving mileage, vehicle trim package, or even a minor speeding citation.

Why do insurance companies evaluate financial credit? Actuarial studies conducted over decades by organizations like the Federal Trade Commission (FTC) and LexisNexis confirm an undeniable mathematical link: drivers with lower credit scores file insurance claims significantly more frequently, and the average cost per claim is markedly higher.

Actuaries hypothesize that financial prudence correlates with operational caution: drivers who meticulously track debt and maintain financial schedules tend to maintain their vehicle brakes and tires, avoid aggressive lane changes, and exercise greater caution during adverse weather conditions.

2. Credit-Based Insurance Score (CBIS) vs. Traditional FICO

When an auto insurer pulls your credit report, they do not view your standard FICO score or lending history. Instead, they use proprietary algorithmic scoring models (such as LexisNexis Attract or FICO Insurance Score) to generate a Credit-Based Insurance Score (CBIS).

3. Price Disparity: Excellent vs. Good vs. Poor Credit Tiers

The financial penalty for carrying subprime credit on an auto policy is staggering. Review the national average rate filings across credit tiers for a standard full-coverage auto policy:

As the data illustrates, moving your credit profile from 'Poor' into 'Good' saves more than $1,300 every single year on identical vehicle coverage with the same clean driving record.

4. 50-State Regulatory Landscape: Which States Ban Credit Scoring?

Consumer protection advocates have long argued that credit-based insurance scoring disproportionately penalizes lower-income households. Consequently, several states have enacted strict statutory prohibitions:

• California (Proposition 103): State law strictly mandates that auto insurance rates must be determined primarily by: (1) driving safety record, (2) annual miles driven, and (3) years of driving experience. Using credit scoring is 100% illegal.
• Hawaii: Prohibits the use of credit ratings in motor vehicle insurance underwriting and pricing formulas.
• Massachusetts: Prohibits auto insurers from considering credit information or credit scores in setting private passenger rates.
• Michigan: Under the 2019 auto reform legislation, insurers cannot use credit scores directly, although they may utilize certain insurance scores derived without credit bureau trade lines.

If you reside in any of the other 46 states, your credit history is actively impacting your monthly premium.

5. 4 Actionable Steps to Improve Your Insurance Credit Tier

1. Lower Credit Card Utilization Under 30%: Insurers heavily penalize maxed-out credit cards. Paying down card balances so that you utilize less than 20% to 30% of your available credit limit delivers the fastest boost to your CBIS score.
2. Audit Your Credit Reports for Errors: According to FTC studies, 1 in 5 consumers has an error on their credit report. Disputing fraudulent collections or misreported late payments through AnnualCreditReport.com can immediately elevate your score tier.
3. Request a Mid-Term Re-Score: If your credit score improved significantly over the past six months, do not wait for automatic annual reviews. Call your insurance agent and explicitly request a "re-credit pull." Most carriers will recalculate your rate for your next billing cycle.
4. Consider Telematics to Override Poor Credit: If your credit is currently bruised, enroll in a safe-driver telematics app (like State Farm Drive Safe or Progressive Snapshot). Strong driving scores can generate 20% to 30% discounts that help offset credit surcharges.