At-Fault Accident: What Changes on Your Insurance
When you caused the crash, your liability coverage pays the other party and your collision coverage pays your own car minus the deductible. The at-fault surcharge averages about 44 percent for 3 to 5 years. This page is specifically about who pays what and what the policy actually does when you are the at-fault party. For the general step-by-step of what to do after any accident see after-accident; for the surcharge timeline see how long does an accident stay; for the premium cost impact see cost after a DUI (DUI-specific) or the general cost increase in the sections below.
How fault is determined
- Police report: often cites the at-fault party. Not binding on insurers but strongly influential.
- Insurance investigation: both carriers' adjusters review the police report, photos, witness statements, and vehicle damage patterns to assign fault.
- Comparative negligence rules: in pure comparative negligence states (CA, FL, NY among others) you can recover damages even if 90 percent at fault, reduced by your percentage. In modified comparative negligence states, you must be below 50 percent or 51 percent at fault to recover anything from the other driver.
- No-fault states: PIP covers your own medical regardless of fault. Fault still matters for property damage and for liability claims above PIP limits.
Who pays what
- Other driver's medical bills + lost wages + pain and suffering: your bodily-injury liability coverage, up to the limit.
- Other vehicle's repair or ACV total loss: your property-damage liability coverage, up to the limit.
- Your medical bills: your PIP or MedPay (if carried), then your health insurance.
- Your vehicle's repair: your collision coverage, minus your deductible. Without collision, you pay out of pocket.
- Damages above your liability limit: you personally. This is why 25/50 limits are a trap and 100/300 is a safer floor.
What specifically changes on your policy
- At-fault surcharge at next renewal. Average 44 percent; higher for severe or injury accidents.
- Loss of good-driver discount. 10 to 25 percent discount disappears for the surcharge lookback period (typically 3 to 5 years).
- CLUE loss history entry. Shows up at every future quote for 5 to 7 years.
- Possible non-renewal if multiple at-fault incidents cluster in a short window. A single incident almost never triggers this.
- Accident forgiveness may apply if you had it on the policy before the accident. See accident forgiveness.
Minimize the surcharge impact
- Shop at next renewal. The current carrier's surcharge is only their view of risk. A competitor may price the same event more leniently.
- Keep underlying liability limits high enough that you don't exhaust them. Exhausted limits = personal lawsuit exposure.
- Enroll in a discount-only telematics program to rebuild good-driver status over 2 to 3 years.
- Consider accident forgiveness for future protection, especially in high-risk households.
Sources
- MoneyGeek: Average rate increase after at-fault accident 2026.
- Insurance Information Institute: Fault determination and comparative negligence.
- State comparative-negligence statutes (CA Civ. Code 1431; TX Civ. Prac. & Rem. 33.001).
- LexisNexis CLUE retention guidance.