Driving Record: The Heaviest Weight
At-fault accidents and moving violations carry the largest individual impact on your quoted premium. Each incident applies a surcharge multiplier that compounds against other rating factors for a lookback period of several years. A single at-fault accident can increase a quote by a substantial percentage, and multiple incidents compound the effect because the multipliers stack multiplicatively rather than additively.
If your record has recent incidents, the quote reflects the statistical cost of insuring someone with your claims profile. The surcharge will diminish as the incidents age and eventually drop off your record entirely. In the meantime, the quote you are seeing is the most accurate reflection of how the carrier prices your current risk. Requesting quotes from multiple carriers is productive because each one weights the same incident differently. A carrier that surcharges aggressively for your specific incident type may be significantly more expensive than one that weights it less heavily in its model.
Vehicle and Location Factors
The vehicle you drive carries a rating symbol based on its repair cost history, safety ratings, theft frequency, and parts availability. A vehicle associated with expensive repairs or frequent theft claims adds to the premium regardless of your personal driving behavior. If you recently changed vehicles and the new one rates less favorably than the old one, part of the quote increase traces to the vehicle swap.
Your garaging zip code anchors the geographic component of the rating. Urban areas with dense traffic, higher accident rates, and elevated theft and vandalism frequencies rate higher than suburban or rural zones. A move from a low-density area to a city center can raise a quote materially even if every other input stays the same. Weather exposure in your region, including hail, flooding, and hurricane risk, affects the comprehensive portion of the premium as well. The geographic factor is fixed for as long as you live at your current address, so the only way to reduce it is to relocate, which is rarely practical solely for insurance savings.
Credit-Based Insurance Score
In most states, carriers incorporate a credit-based insurance score into the rating model. This score is derived from your credit history but is calculated differently from the lending credit score used for loans and credit cards. The insurance score correlates with claim probability in actuarial research, and carriers use it as one factor among many in determining the premium. A lower score applies a multiplier that raises the quote, while a stronger score produces a more favorable multiplier.
The impact of credit on your quote varies by state. A few states prohibit its use in auto insurance pricing entirely, in which case the factor carries zero weight. In states that permit it, the credit-based score can move the premium meaningfully, especially when combined with other unfavorable factors. If your credit is a contributing cause of a high quote, improving your credit profile over time will gradually improve the insurance score at future renewals. The coverage-needs builder on this site does not incorporate credit scoring, but it helps you optimize every other variable so the credit impact is not compounded by suboptimal coverage selections.
Isolating the Cause in Your Specific Quote
The most effective diagnostic is to request a quote with one variable changed at a time. Request the same coverage for a different vehicle and compare the total. If the premium drops noticeably, the vehicle rating is a significant contributor. Request a quote with a higher deductible and observe the shift. If the drop is large, the carrier's collision and comprehensive pricing for your profile is sensitive to deductible selection, and adjusting it gives you direct control over the output.
Call the carrier and ask which factors produced the highest surcharge or loading on your quote. Carriers are generally willing to explain the primary drivers behind a quoted premium when you ask directly. The explanation tells you whether the high quote stems from your driving record, your vehicle, your location, your credit-based score, or a combination. Once you know which input is responsible, you can focus your effort on the variables you can change and evaluate whether a different carrier weights those variables less aggressively.
Build your coverage-needs profile on this site before requoting. The builder walks you through each coverage decision step by step, ensuring that the quotes you request reflect the coverage you actually need rather than defaults that may be inflating the premium with layers or limits that do not match your situation.
Rating factor weights are proprietary to each carrier; this guide describes the general framework used across the industry.