How Does My Credit Score Affect My Car Insurance Rate?

When shopping for car insurance, most drivers expect their premiums to be based on their driving record, the type of car they drive, their age, and where they live. However, one of the most heavily weighted factors determining your car insurance premium has nothing to do with your driving at all: your credit score.

For millions of drivers, a less-than-stellar credit history translates into hundreds, or even thousands, of dollars in extra insurance costs each year. Conversely, an exceptional credit score can unlock some of the best discounts the insurance industry has to offer.

This comprehensive guide explores exactly how and why auto insurance companies use your credit information, how different FICO tiers impact your rates, and actionable steps you can take to improve your credit profile and lower your insurance costs.

Understanding Credit Scores vs. Credit-Based Insurance Scores

Before diving into how credit affects your rates, it is crucial to understand that auto insurers do not look at your exact FICO Score the same way a mortgage lender or credit card issuer does. Instead, they use a Credit-Based Insurance Score (CBIS).

What is a Traditional Credit Score?

A traditional credit score (like the standard FICO 8 score) is designed to predict one specific behavior: the likelihood that you will become 90 days late on a debt payment within the next 24 months.

What is a Credit-Based Insurance Score (CBIS)?

A Credit-Based Insurance Score uses much of the same data from your credit report, but it is run through a different mathematical algorithm. Developed by companies like FICO and LexisNexis, a CBIS is designed to predict a completely different behavior: the likelihood that you will file an insurance claim that costs the company more money than they collect from you in premiums.

While the formulas are different, the two scores are highly correlated. If you have a poor traditional FICO score, you almost certainly have a poor credit-based insurance score.

Why Do Car Insurance Companies Use Credit Scores?

The answer lies in actuarial science and statistical correlation. Insurance companies use credit scores because decades of data prove that credit history is a highly accurate predictor of insurance risk.

The Statistical Evidence

The Federal Trade Commission (FTC) conducted a definitive study on this subject. After analyzing millions of policies, the FTC report concluded:

• Direct Correlation to Claims: Credit-based insurance scores are effectively predictive of the number of claims consumers file and the total cost of those claims.
• Frequency of Claims: Drivers with lower credit scores file claims much more frequently than drivers with higher credit scores.
• Severity of Claims: When drivers with lower credit scores do file claims, those claims tend to be more expensive.

The Behavioral Theory

Actuaries theorize that the correlation stems from human behavior:

• Risk Aversion: Individuals who meticulously manage their finances tend to exhibit risk-averse behavior in other areas of life—including how carefully they drive.
• Maintenance: A person with good credit is statistically more likely to perform preventative maintenance on their vehicle.
• Out-of-Pocket Payments: Individuals with excellent credit usually have savings. If they experience a minor accident, they are more likely to pay for the repair out-of-pocket to avoid a premium increase.

State Laws and Regulations

Several states have passed legislation banning or heavily restricting the use of credit scores in auto insurance pricing:

• California: Bans the use of credit scores entirely for both auto and homeowners insurance.
• Hawaii: Completely bans the use of credit history for auto insurance pricing.
• Massachusetts: Prohibits insurers from using credit information to determine auto insurance rates.
• Michigan: Passed laws in 2019 banning the use of traditional credit scores.

If you live in California, Hawaii, or Massachusetts, your credit score does not affect your auto insurance premiums. In the other 47 states, your credit score plays a massive role.

How FICO Credit Tiers Impact Your Insurance Rate

1. Exceptional Credit (FICO Score: 800-850)

Drivers in this tier represent the lowest possible statistical risk. They receive the lowest base rates and are often eligible for additional discounts.

2. Very Good Credit (FICO Score: 740-799)

This tier indicates a highly responsible borrower. Rates remain highly competitive.

3. Good Credit (FICO Score: 670-739)

This is where the average American sits. Drivers here will pay standard market rates.

4. Fair Credit (FICO Score: 580-669)

This is where rates begin to spike. Premiums for this tier are significantly higher than the national average, often rising by 20% to 40%.

5. Poor Credit (FICO Score: 300-579)

A poor score is the result of major negative financial events. Drivers with poor credit face severe financial penalties. In many states, a driver with a perfect driving record but poor credit will pay substantially more for insurance than a driver with excellent credit who has a recent DUI conviction.

The Financial Impact: Average Rate Differences

Credit Tier	FICO Score	Est. Annual Premium	vs. Exceptional
Exceptional	800-850	$1,550	Baseline
Very Good	740-799	$1,720	+11%
Good	670-739	$2,010	+30%
Fair	580-669	$2,450	+58%
Poor	300-579	$3,880	+150%

A driver with poor credit pays an average of $2,330 more per year than a driver with exceptional credit.

Frequently Asked Questions

1. Will getting an auto insurance quote lower my credit score?

No. When an auto insurance company checks your credit to generate a quote, they perform a “soft inquiry.” Soft inquiries do not impact your credit score whatsoever.

2. Can I get car insurance if I have terrible credit?

Yes. You will not be denied standard coverage solely because of a poor credit score. However, your premiums will be significantly more expensive.

3. What if I have no credit history at all?

Having a “thin file” is treated differently than having a “bad” credit history. If an insurer cannot generate a Credit-Based Insurance Score, they will typically assign you an “average” or “neutral” credit profile.

4. How long does it take for a better credit score to lower my car insurance rate?

Your insurer usually checks your credit-based insurance score when you first apply for a policy, and they may recalculate it at your policy renewal period (usually every 6 or 12 months).

5. Do all insurance companies weigh credit scores the same way?

No. Every insurance company uses a proprietary algorithm. The only way to find out which company favors your specific credit profile is to compare quotes from at least three to five different carriers.

6. What specific parts of my credit report do auto insurers look at?

• Payment History (~40%): Do you pay your bills on time?
• Outstanding Debt (~30%): How much of your available credit are you using?
• Length of Credit History (~15%): How long have you had established credit?
• New Credit Applications (~10%): Are you suddenly applying for numerous credit cards or loans?
• Credit Mix (~5%): Do you have a healthy mix of credit types?

Actionable Advice: How to Improve Your Credit

Step 1: Audit Your Credit Reports for Errors

According to the FTC, as many as one in five Americans have an error on their credit report. Go to AnnualCreditReport.com to get free credit reports from the three major bureaus. If you see an error, file a dispute directly with the credit bureau.

Step 2: Master Your Credit Utilization Ratio

Pay down your credit card balances so that your utilization is below 30% on every individual card. For the best possible insurance score, aim to keep your utilization under 10%.

Step 3: Set Up Autopay

Automate your financial life. Set up minimum auto-payments on all credit cards and loans to ensure you never suffer a 30-day late mark.

Step 4: Keep Old Accounts Open

Length of credit history accounts for roughly 15% of your score. Keep old accounts open, even if you rarely use them.

Step 5: Be Strategic About Rate Shopping

Try to secure your new auto insurance quote before you undergo multiple hard credit pulls for other loans.

Step 6: Ask for an Exception During Hardships

Many states require insurance companies to allow for “Extraordinary Life Circumstance” exceptions if your credit dropped due to a major life event.

Conclusion

The reality of the modern auto insurance industry is that your financial history is just as scrutinized as your driving record. By treating your credit score as a vital component of your overall insurance profile, you can take control of your rates.

Consistently paying bills on time, maintaining low credit card balances, and regularly checking your credit report for errors will save you thousands of dollars in auto insurance premiums over the course of your driving life.