Car insurance often increases significantly after an at-fault accident, commonly in the range of about 20%–50% or more, but the exact amount depends heavily on your state, insurer, and the severity of the claim. In dollar terms, one widely cited data set shows an average increase of roughly 17%, or about $350–$400 per year, after a single incident compared with a clean record.

Typical increase ranges

  • Many insurers indicate that premiums “typically” rise anywhere from 0% to 50% or more after an at-fault accident, with larger, injury-heavy, or high-dollar claims pushing you to the upper end of that range.
  • One analysis of nationwide data found an average increase of about 17% (roughly $367 annually) after one incident, rising to around 47% more than a clean record if you have two incidents.

State and company differences

  • Rate hikes vary a lot by state; in some states a single at-fault crash with property damage can raise premiums by 40%–70% or more, while others see more modest changes around 10%–25%.
  • Some states limit when insurers can surcharge you (for example, for very small claims), but others allow substantial increases even for relatively minor accidents.

At-fault vs. not-at-fault

  • At-fault accidents almost always hit your rates harder; one national review suggests a small or no increase (around 0%–10%) when you are clearly not at fault, versus up to 40%–50% when you are responsible.
  • Even non–at-fault crashes can sometimes lead to a rate review or modest increase, especially if you have multiple prior claims or tickets.

Other factors that affect the increase

  • Insurers price your new premium based on:
    • Your prior driving record and number of past claims
    • The claim amount and whether there were injuries
    • Your age, vehicle type, location, and chosen coverage levels
  • Some companies offer accident forgiveness, which can prevent a surcharge after your first qualifying accident, though this is not available everywhere and often requires you to have been claim-free for several years.

How long the higher rate lasts

  • Surcharges from an at-fault accident often remain in effect for three to five years, gradually dropping off as the incident ages, depending on your insurer and state rules.
  • Shopping around after a surcharge, maintaining a clean record, and adjusting coverages or taking a telematics/safe-driving program can help bring your premium back down faster.

SEO-style meta description:
Wondering how much does insurance increase after an accident? In many cases, car insurance jumps 20%–50% after an at-fault crash, with an average hike around 17% (about $367 per year), depending on state, insurer, and claim details.