2026-02-24 · CalcBee Team · 7 min read
Auto Insurance Score Explained: What It Is and How It Affects Your Rate
You might have excellent driving history and still pay high auto insurance premiums. The reason? Your insurance score — a number most people don't even know exists, yet it can impact your premium by 40–60%. Here's how it works and what you can do about it.
What Is an Insurance Score?
An insurance score (also called a credit-based insurance score) is a predictive model that estimates the likelihood you'll file a claim. It's not the same as your credit score, but it uses similar data.
| Feature | Credit Score (FICO) | Insurance Score |
|---|---|---|
| Purpose | Predict loan repayment | Predict insurance claims |
| Range | 300–850 | 200–997 (varies by model) |
| Main provider | Fair Isaac (FICO) | LexisNexis, TransUnion |
| Used by | Lenders | Insurance companies |
| Data source | Credit history | Credit history + insurance history |
How It Affects Your Premium
Insurance score impact on a typical auto policy:
| Score Tier | Premium Impact | Example Annual Rate |
|---|---|---|
| Excellent | Lowest rates (baseline) | $1,200 |
| Good | +10–20% | $1,350 |
| Fair | +25–50% | $1,650 |
| Poor | +50–100% | $2,100 |
| No score/thin file | +30–60% | $1,800 |
The difference between excellent and poor scores on the same policy can be $900 or more per year — for identical driving records and coverage.
What Factors Determine Your Insurance Score
| Factor | Weight | How It's Used |
|---|---|---|
| Payment history | 40% | Late payments, collections, bankruptcies |
| Outstanding debt | 30% | Total debt and credit utilization |
| Credit history length | 15% | How long you've had credit accounts |
| New credit | 10% | Recent applications and new accounts |
| Credit mix | 5% | Variety of credit types (cards, loans, mortgage) |
Additional Insurance-Specific Factors
| Factor | Impact |
|---|---|
| Prior claims history | More claims = higher risk |
| Coverage lapses | Gaps in insurance coverage raise your score |
| Policy tenure | Longer with one insurer = slight positive |
| Insurance inquiries | Shopping for quotes doesn't hurt (unlike credit hard pulls) |
Why Insurers Use Credit Data
The correlation between credit behavior and insurance claims is well-documented:
- People with lower credit scores file 40–60% more claims on average
- The relationship holds across all demographics and geographies
- Credit data isn't measuring fault — it correlates with claim frequency, including non-fault claims
This is controversial. Consumer advocates argue it penalizes people facing financial hardship. Some states have banned or limited the practice (see below).
States That Restrict Insurance Score Use
| State | Restriction |
|---|---|
| California | Banned completely for auto insurance |
| Hawaii | Banned completely |
| Massachusetts | Banned completely |
| Maryland | Banned for homeowners; limited for auto |
| Michigan | Limited use |
| Oregon | Limited use |
| Utah | Prohibited as sole factor |
In these states, your driving record, age, and vehicle carry more weight.
How to Check Your Insurance Score
- LexisNexis Attract Score: Request your consumer disclosure report at LexisNexis consumer disclosure
- TransUnion Insurance Score: Available through TransUnion's consumer services
- Ask your insurer: Some will share which scoring tier you fall into
Important: Checking your own score does not affect it. Insurance quote shopping also does not lower your score — comparison shopping is always encouraged.
Strategies to Improve Your Score
| Strategy | Timeline | Impact |
|---|---|---|
| Pay all bills on time | 3–6 months | High — payment history is 40% |
| Reduce credit card balances | 1–3 months | High — utilization is key |
| Keep old accounts open | Ongoing | Moderate — history length matters |
| Don't open unnecessary accounts | Ongoing | Moderate — hard inquiries add up |
| Dispute credit report errors | 30–90 days | Can be significant if errors exist |
| Maintain continuous insurance | Ongoing | Coverage gaps are red flags |
The Coverage Lapse Problem
One of the most common and costly mistakes: letting insurance coverage lapse, even for a few days.
| Lapse Duration | Premium Impact |
|---|---|
| No lapse | Baseline rate |
| 1–30 days | 5–15% increase |
| 30–60 days | 15–30% increase |
| 60–90 days | 25–50% increase |
| 90+ days | 40–75% increase |
Even switching insurers creates risk: ensure your new policy starts on the exact day the old one ends. A gap of zero days is the goal.
Improving Your Rate Despite a Low Score
If your insurance score is low, these factors can offset it:
- Bundle auto + home/renters insurance — saves 10–25%
- Take a defensive driving course — 5–15% discount in most states
- Choose a higher deductible — $500 to $1,000 saves 10–20%
- Drive less — low-mileage discounts (under 7,500 miles/year)
- Ask about usage-based insurance — programs that track actual driving behavior
- Shop aggressively — insurers weigh credit differently, and some compete for "non-standard" customers
Frequently Asked Questions
Is an insurance score the same as a credit score?
No. They use overlapping data but different models optimized for different predictions. Your FICO score predicts loan repayment; your insurance score predicts claim frequency. You can have a 780 credit score and a mediocre insurance score, or vice versa.
Can I opt out of insurance score use?
Only in states that ban the practice. In other states, you can ask if the insurer offers a manual underwriting process, but this is rare and usually not available.
How long do negative marks affect my insurance score?
Similar to credit scores: late payments impact for 7 years, bankruptcy for 7–10 years. But the impact fades over time — a late payment from 5 years ago matters much less than one from 6 months ago.
Do speeding tickets affect my insurance score?
No — driving record violations are separate from your insurance score. They affect your premium through a different channel. However, both a bad driving record AND a low insurance score will compound into very high rates.
Your insurance score is a hidden driver of your auto premium. Improve it by managing your credit responsibly, maintaining continuous coverage, and shopping across insurers who weight scoring factors differently.
Category: Insurance
Tags: Auto insurance, Insurance score, Credit score, Car insurance, Insurance premium, Risk factors, Insurance rating