How Each Factor Affects Your Rate
See the dollar impact of age, state, driving record, and credit score on your car insurance cost. 2026 data from NAIC and BLS.
Estimates combine average impacts of each factor independently. Your actual rate reflects how your insurer weights these factors together, which varies by company.
Data: NAIC 2023 premiums adjusted to 2026 using BLS CPI. Age data: Bankrate. Record data: state DOI analysis. Credit data: industry rate studies.
Last updated: 2026-03-16
What Drives Your Car Insurance Rate
Four factors have the biggest impact on what you pay for car insurance: where you live, how old you are, your driving history, and your credit score. This tool shows how each one adds to or subtracts from the national average of $150 per month, based on 2026 data from the NAIC, BLS, and state Departments of Insurance.
Your state is typically the largest single factor. Drivers in Florida pay an average of $208 per month, while drivers in Maine pay $97. That gap of $111 per month ($1,332 per year) exists before any personal factors enter the picture. State differences reflect local accident rates, litigation costs, weather exposure, population density, and regulatory environments.
What You Can Control
You cannot change your age or relocate states overnight, but two of the four factors are within your control, and they carry significant dollar impact.
Credit score is the single largest controllable factor. Moving from poor to excellent credit can reduce your estimated rate by $193 per month ($2,316 per year). Seven states (Hawaii, California, Massachusetts, Michigan, Oregon, Washington, and Maryland partially) prohibit credit-based insurance pricing, but in the remaining 43 states, your credit history directly affects your premium.
Driving record is the other factor you control. A clean record keeps you at the baseline rate. One at-fault accident adds an estimated $66 per month (+44%), and a DUI adds $111 per month (+74%). These surcharges typically remain on your record for three to five years, so the cumulative cost of a single incident can reach thousands of dollars.
Beyond these four factors, the single most effective way to lower your rate is comparing quotes from multiple insurers. Rates for identical driver profiles can vary by 50% or more between companies, because each insurer weighs these factors differently in their proprietary pricing models.
How This Tool Calculates Estimates
The tool uses an additive model starting from the national average ($150 per month). Each factor adjusts that baseline independently: your state's average replaces the national baseline, and age, driving record, and credit adjustments are added as deltas from their respective midpoints. This approach is transparent and easy to understand, though your actual rate reflects how your specific insurer combines these factors together.