Drivers with poor credit pay 58–114% more for car insurance than those with excellent credit, depending on their state. Here's how insurers use credit-based insurance scores and what you can do about it.
Why Insurers Check Your Credit — And What They Actually See
Most auto insurers don't pull your standard FICO credit score. Instead, they use a credit-based insurance score — a model built specifically to predict insurance claims likelihood. These scores weigh payment history, outstanding debt, credit history length, new credit applications, and credit mix differently than lending scores do.
Insurers argue that statistical correlation exists between credit behavior and claims frequency. Drivers with lower credit-based insurance scores file more claims on average, according to industry research. The Federal Trade Commission confirmed this correlation in a 2007 study, though it noted the reasons remain unclear.
Your insurance score is not identical to your credit score. A driver with a 720 FICO score might have a different insurance score than another driver with the same FICO, depending on which credit factors each person's profile emphasizes. Insurance scores typically range from 200 to 997, with higher numbers indicating lower predicted risk.
How Much Your Credit Actually Costs You in Premium Dollars
The price difference between excellent and poor credit varies dramatically by insurer and state. Nationally, drivers with poor credit pay an average of $144 more per month than drivers with excellent credit for the same coverage, according to 2023 rate analysis by Quadrant Information Services. That's $1,728 annually.
The penalty isn't uniform. In Michigan, poor credit can increase premiums by 114% compared to excellent credit. In Hawaii, Ohio, and North Carolina, it increases rates by 88–92%. Some insurers weigh credit more heavily than others — one major carrier might charge a poor-credit driver 130% more, while a competitor charges only 40% more for identical coverage.
Credit typically ranks as the second or third most influential rating factor after driving record and sometimes age. A single 30-day late payment on a credit card can lower your insurance score enough to trigger a rate increase at your next renewal, even if you've had no accidents or tickets.
Four States That Ban or Restrict Credit-Based Insurance Pricing
California, Hawaii, Massachusetts, and Michigan either ban or heavily restrict the use of credit in auto insurance pricing. In California and Hawaii, insurers cannot use credit history at all when setting rates. Massachusetts prohibits its use for new policies but allows limited use at renewal. Michigan banned credit-based pricing effective July 2021.
Drivers in these states with poor credit avoid the premium penalty entirely. A driver with a 580 credit score in California pays the same base rate as a driver with an 800 score, assuming all other risk factors are equal. The rate difference in these states comes down to driving record, annual mileage, vehicle type, and coverage levels.
Maryland and Oregon have partial restrictions. Maryland caps the weight insurers can assign to credit factors. Oregon requires insurers to offer a quote without considering credit if a consumer requests it. These protections reduce but don't eliminate credit-based pricing.
Which Credit Factors Hit Your Insurance Rate Hardest
Payment history carries the most weight in insurance scoring models, typically accounting for 40% of your score. A single collection account, bankruptcy, or foreclosure can drop your insurance score significantly. Multiple missed payments compound the damage.
Outstanding debt accounts for roughly 30% of the score. Insurers focus on your credit utilization ratio — how much of your available credit you're using. Maxing out credit cards signals higher risk even if you pay on time. Keeping utilization below 30% across all accounts helps maintain a stronger insurance score.
Credit history length matters less but still contributes about 15% to the score. Opening several new credit accounts in a short period can temporarily lower your score by reducing average account age and adding hard inquiries. Closing old accounts can backfire by shortening your credit history, even if those accounts had zero balance.
How Long It Takes Credit Improvements to Lower Your Premium
Insurers typically pull your credit-based insurance score at policy inception and each renewal. If your policy renews every six months, credit improvements won't affect your rate until that renewal date. Some insurers allow mid-term re-evaluations if you request a credit check after making significant improvements.
Most positive credit actions take 30–90 days to appear on credit reports and influence your insurance score. Paying down a maxed-out credit card shows up faster than disputing an error, which can take 60–90 days to resolve. Negative marks like late payments remain on your report for seven years, though their impact on your insurance score diminishes over time.
A driver who pays off collections, reduces credit utilization from 80% to 25%, and maintains on-time payments for six months can see their insurance rate drop 15–25% at the next renewal, depending on the insurer and how poor their credit was initially. Larger credit improvements yield larger rate reductions, but the relationship isn't perfectly linear.
Three Strategies to Minimize Credit-Based Premium Increases
Shop multiple insurers when your credit is imperfect. Carriers weigh credit differently — one insurer might penalize poor credit by 90% while another penalizes it by 45%. Rate differences of $50–$100 per month between insurers are common for drivers with credit scores below 650. Comparing quotes from at least four carriers helps identify which ones are more forgiving of credit issues.
Request a credit exception or review if you have documented circumstances. Some insurers offer exceptions for life events like medical debt from a serious illness, divorce, or temporary unemployment. You'll typically need to provide documentation and explain how the situation has resolved. Not all insurers offer this, and approval isn't guaranteed, but the request costs nothing.
Consider a telematics or usage-based insurance program. These programs track your actual driving behavior through a smartphone app or plug-in device. Safe driving patterns can earn discounts of 10–30%, which partially or fully offset credit-based pricing penalties. Drivers who brake gently, avoid late-night driving, and limit high speeds benefit most from these programs.
When to Check Your Credit Before Shopping for Insurance
Review your credit reports from all three bureaus — Equifax, Experian, and TransUnion — at least 30 days before shopping for car insurance. Insurers may pull from any of the three, and reports often contain different information. You're entitled to one free report per bureau annually through AnnualCreditReport.com.
Dispute any errors immediately. Common errors include accounts that don't belong to you, incorrect payment statuses, and debts already paid showing as outstanding. Credit bureaus must investigate disputes within 30 days. Correcting errors before an insurer pulls your credit can prevent an artificially inflated premium.
Time your insurance shopping around credit improvements when possible. If you're about to pay off a major debt or resolve a collections account, wait until that action posts to your credit report before requesting insurance quotes. A two-month delay in shopping can translate to years of lower premiums if it allows a significant credit improvement to register first. compare quotes from at least four carriers