How Credit Score Affects Insurance Premiums in Most States

What a Credit-Based Insurance Score Actually Is

When you apply for an auto or homeowners policy, the insurer doesn't just pull your driving record or inspect your roof. In most states, they also pull your credit report and run it through a scoring model built specifically for insurance underwriting. The output is your credit-based insurance score — a number designed to estimate how likely you are to file a claim, not how likely you are to repay a loan.

That distinction matters. The two scores use much of the same raw data — payment history, amounts owed, length of credit history, new inquiries, credit mix — but the weighting is entirely different. An insurer cares about behavioral signals that correlate with loss frequency, not creditworthiness in the lending sense. Someone with a 720 FICO score might still land in a mid-tier insurance bracket if they carry high revolving balances or have a thin credit history.

The most commonly used commercial models are the LexisNexis Attract score and the Fair Isaac Insurance Score (FIIS). Individual carriers may also develop proprietary models on top of these. What you almost never see is transparency: insurers are not required to tell you your exact insurance score, only that credit was a factor if it led to an adverse action.

For a broader look at how underwriters use credit data during the policy application process, see how credit scores factor into insurance underwriting.

Which States Allow It — and Which Don't

Credit-based insurance scoring is permitted in roughly 46 states for auto insurance and a similar number for homeowners. The four clear outliers are California, Hawaii, Massachusetts, and Michigan, all of which prohibit carriers from using credit information to price personal auto policies. Michigan extended its ban as part of its 2019 no-fault reform law.

Beyond the outright bans, several states have meaningful restrictions:

• Maryland: Credit may only be used at initial policy issuance, not at renewal.
• Oregon: Restricts adverse re-ratings based on credit at renewal.
• Nevada: Has imposed temporary moratoriums on credit use during declared emergencies.
• Washington: Implemented a multi-year moratorium starting in 2021, extended multiple times, blocking insurers from using credit for pricing decisions.

If you live in a restricted or ban state, your premium is built from other factors — driving record, vehicle type, ZIP code, claims history — without the credit overlay. For everyone else, it's a real number that's moving your rate up or down right now.

Even in states where credit scoring is permitted, insurers must follow specific rules. Most states require an adverse action notice if your credit contributed to a higher rate or denial. You're also entitled to dispute inaccurate information on the underlying credit report through the three major bureaus.

How Much Is Your Credit Score Actually Moving Your Premium?

This is the question most consumers never get a straight answer on, because carriers don't publish their exact credit tier multipliers. But industry data gives us a useful picture.

For auto insurance, the gap between an excellent credit tier and a poor credit tier can range from 40% to more than 100% in premium difference depending on the state and carrier. A driver in Texas paying $1,200 a year with excellent credit might pay $2,000–$2,200 with poor credit — same car, same ZIP code, same driving record. That's $800–$1,000 per year purely from the credit factor.

For homeowners insurance, the credit impact is real but somewhat less dramatic in most markets. A homeowner in Ohio might see a $250–$600 annual swing based on credit tier placement. In states with high property risk (think Florida, Louisiana), the overall premium is so dominated by catastrophe exposure that the credit factor is a smaller percentage of a much larger base rate.

For renters insurance, premiums are lower overall — often $150–$300 a year — so even a 30% credit penalty might only mean $50–$90 more annually. Still worth knowing, but not the primary lever to pull.

To understand where credit sits relative to all the other variables that build your rate, see the factors insurers weight most heavily when calculating your premium.

What Specifically Hurts and Helps Your Insurance Score

Because the insurance scoring model weights factors differently than FICO, it's worth knowing which specific behaviors have the most impact:

Payment History (~40% of influence)

Late payments — even a single 30-day late — can significantly damage your insurance score. This is the single highest-weighted factor. Consistent on-time payments build the score fastest.

Outstanding Debt / Utilization (~30%)

High revolving balances relative to your credit limits signal financial stress to the model. Keeping utilization below 30% across your cards is the fastest way to improve this component.

Length of Credit History (~15%)

A thin file — someone who has only had credit accounts for 2–3 years — scores lower than someone with a 10-year established history. This factor changes slowly over time.

New Credit Inquiries (~10%)

Multiple hard inquiries in a short period (applying for several loans or cards) signal financial instability. Rate shopping for mortgages is usually treated as a single inquiry, but not all credit activity gets that treatment.

Credit Mix (~5%)

Having a mix of installment loans (auto, mortgage) and revolving credit (cards) versus only one type can slightly benefit your score.

The fastest wins for your insurance score are the same as for your FICO: pay every bill on time and pay down revolving balances. A reduction in credit card utilization from 70% to under 30% can reflect in your score within one to two billing cycles, which means a better rate at your next renewal.

Practical Steps to Use This Information

Understanding how credit affects your premium is only useful if you know what to do with that knowledge. Here's the sequence that actually moves the needle:

1. Pull your credit report before your renewal date. You're entitled to free reports from all three bureaus at AnnualCreditReport.com. Look for errors — accounts that aren't yours, incorrect late payments, balances reported incorrectly. Disputing and correcting errors is the one fix that can improve your insurance score quickly and at no cost.
2. Ask your insurer what score tier you're in. Carriers typically won't tell you the exact number, but a direct question to your agent about whether you're in a standard, preferred, or nonstandard credit tier can tell you whether there's room to improve and what the rate difference would be.
3. Request a re-rate at renewal if your credit has improved. Most carriers pull a fresh credit snapshot annually at renewal. If you've paid down significant debt or cleared a derogatory mark in the past 12 months, that should be captured automatically — but following up with your agent ensures it doesn't slip through.
4. Shop the market actively. Because carriers weight the credit factor differently in their proprietary models, a credit profile that puts you in a mid-tier with one carrier might qualify as preferred with another. Getting three or more quotes at renewal is the most reliable way to arbitrage this difference.
5. Consider a carrier that doesn't use credit scoring. A small number of regional and specialty carriers opt out of credit-based scoring. If your credit is significantly impaired — bankruptcy, collections — these carriers may offer better pricing even if their base rates are slightly higher.

For a complete breakdown of all the variables that feed into what you pay, see what actually goes into your auto insurance premium.

The Controversy — and Why It's Not Going Away

Credit-based insurance scoring has been controversial since it became widespread in the 1990s. The core objection: credit history correlates strongly with income and, by extension, with race and socioeconomic status. Critics argue that using credit as a rating factor effectively penalizes people for being poor, regardless of their actual driving behavior.

“The actuarial evidence consistently shows that credit-based insurance scores are among the most predictive rating variables available. Removing them doesn't make pricing fairer — it makes it less accurate, which ultimately shifts costs to lower-risk consumers.”

— Robert Hartwig, Clinical Associate Professor of Finance and former President, Insurance Information Institute

Insurers counter that the predictive relationship between credit and claims is statistically real and actuarially justified. The industry's position is that the score predicts risk across the full population, not any individual's behavior — and that eliminating it would raise rates broadly for everyone by reducing the precision of risk segmentation.

The practical reality for consumers: the debate is ongoing at the state legislative level, and the rules may change in your state. Washington State's extended moratorium and Michigan's permanent ban are the most recent major shifts. Watching your state's insurance commissioner's bulletins — or working with an independent agent who tracks these changes — is the best way to stay informed.

For more detail on how the credit factor interacts specifically with auto insurance pricing, see credit score and auto insurance: what the connection really means.