What Affects Your Car Insurance Rate? 10 Common Factors
Key takeaways
- Your driving record is widely cited as one of the biggest factors in what you pay.
- Where you live, what you drive, how far you drive, and the coverage you choose all affect your rate.
- In many states insurers also use a credit-based insurance score, but a few states restrict or prohibit it.
- Some factors you can change (deductible, coverage, mileage, shopping around), and some you can’t (age, ZIP code).
How do insurers set car insurance rates?
Insurers estimate how likely a driver is to file a claim and how expensive that claim might be, then price the policy accordingly. State regulators oversee how rates are filed and which factors may be used, so the details differ by state. The Maryland Insurance Administration, for example, publishes a consumer explanation of what affects automobile insurance rates. The factors below appear across most major consumer and insurer guides.
1. Your driving record
Tickets, traffic violations, and at-fault accidents generally raise rates, while a long clean record can earn safe-driver discounts. This is commonly ranked as the single most influential factor. Violations typically affect your price for several years, so the effect fades as time passes.
2. Where you live
Insurers look at the claims experience of your ZIP code: traffic density, accident frequency, theft and vandalism, weather hazards such as hail or flooding, and local repair and medical costs. Moving can change your premium even if nothing else about you changes.
3. Your vehicle
The make, model, age, safety features, repair cost, and theft rate of your car all matter. A vehicle that is expensive to repair or frequently stolen generally costs more to insure than one that is cheap to fix.
4. Your age and experience
Rates are typically highest for the youngest drivers and tend to fall with experience. Many insurers also re-rate older drivers, and some offer mature-driver discounts. Our discounts checklist covers those.
5. Your credit-based insurance score
In many states, insurers use a credit-based insurance score, which is different from the credit score a lender sees, to help predict claim likelihood. Some states, including California, Hawaii, Massachusetts, and Michigan, restrict or do not allow credit-based pricing, so whether this applies depends on where you live.
6. The coverage you choose
Higher liability limits, adding collision and comprehensive, and adding extras such as rental reimbursement or roadside assistance all increase the premium. See liability vs. full coverage for how to choose.
7. Your deductible
A higher deductible (what you pay out of pocket before coverage applies on collision or comprehensive claims) generally lowers the premium. Choose one you could comfortably pay on short notice.
8. How much you drive
More miles means more exposure to risk. Insurers commonly ask for your annual mileage, and many offer discounts for low-mileage drivers. Some programs measure mileage with an app or device. See usage-based insurance.
9. Your claims history
Prior claims, even ones that were not your fault in some cases, can influence pricing at renewal or with a new insurer. Insurers can see your claims history through shared databases.
10. Other personal and policy details
Depending on the state, marital status, homeownership, continuous insurance history, and whether you bundle policies can also affect your rate. A lapse in coverage can raise your price with a new insurer, which is one reason to switch without a gap.
Which factors can you actually change?
You usually can’t change your age or ZIP code in the short term. You can adjust your deductible and coverage levels, keep a clean driving record, ask about discounts, consider mileage-based programs if you drive little, and shop around, since each insurer weighs these factors differently. That last point is why two insurers can quote very different prices for the same driver.
Frequently asked questions
What is the biggest factor in car insurance rates?
Most consumer guides point to your driving record, followed by location, vehicle, coverage choices, and, where allowed, your credit-based insurance score.
Does my credit affect my car insurance?
In many states, insurers use a credit-based insurance score. A few states, including California, Hawaii, Massachusetts, and Michigan, restrict or prohibit it.
Will one speeding ticket raise my rate?
It can, though the amount depends on the insurer, your history, and your state. The effect generally lessens as time passes without new violations.
Why do different insurers quote different prices for the same driver?
Each insurer uses its own pricing models and weighs factors differently, which is why comparing quotes can reveal large differences.
Sources
This article is for general educational purposes only and is not insurance, legal, or financial advice. Figures are reported by the sources cited and may change. Coverage, pricing, discounts, and eligibility vary by insurer and state; confirm details with a licensed insurance professional or your state department of insurance.