You were hurt in a crash, and now the other driver's insurance company says some of it was your fault. Maybe you were a little over the limit, maybe you were not buckled, or maybe you said "sorry" at the scene. Here is how California comparative negligence works in 2026, and why partial fault does not mean you walk away with nothing.
The short answer
California uses pure comparative negligence. If you were partly at fault, your compensation is reduced by your share of the fault, not wiped out. You can recover even if you were more at fault than the other driver. The other side has to prove your share, and the percentages are argued, not set by the first adjuster who calls.
What does comparative negligence mean in California?
The California Supreme Court adopted pure comparative negligence in 1975 in Li v. Yellow Cab Co. Before that, if you were even 1 percent at fault, you recovered nothing. Li threw that rule out.
Today a jury, or the lawyers and adjuster in a settlement, totals your damages and assigns a percentage of fault to everyone involved. Your recovery drops by your percentage.
Here is an illustration, not a real result: if a jury found your damages were $100,000 and you were 20 percent at fault, you would recover $80,000.
Can I recover if I was more than 50 percent at fault?
Yes. That is what "pure" means. Some states cut you off at 50 or 51 percent. California does not.
Illustration only: if a jury found your damages were $100,000 and you were 60 percent at fault, you would still recover $40,000.
Fault is rarely all or nothing. One driver was speeding, the other turned left too early. Both made a mistake, and each can still recover, reduced by their own share.
How are fault percentages decided?
Percentages come from evidence and argument. At trial, the defense has to prove you were careless and that it helped cause your injuries. Most cases settle, so the real fight is usually with the adjuster.
The evidence that moves the numbers:
- Photos and vehicle damage. Impact points show speed, angle, and position.
- Video. Dashcam, doorbell, and business cameras. Footage is often erased within days, so request it fast.
- Phone records. Texting shifts fault, for either driver.
- Traffic laws. A driver who broke a Vehicle Code rule, like running a red light, can be presumed negligent.
The police report matters to insurers, but it is an officer's opinion, not the final word.
For riders, insurers often point to lane splitting. It is allowed in California. The question is whether it was done safely.
Every percentage point comes off the top, which is why fault is one of the biggest factors in what a personal injury case is worth. If an adjuster has already said you were partly at fault, call (310) 746-5775 before you agree to any number.
Does not wearing a seatbelt reduce my compensation?
It can, but only in a narrow way. The defense has to prove you were not buckled, that a reasonably careful person would have been, and that the belt would have prevented your injuries or made them less severe. That usually takes an expert, not an adjuster's say so.
Any reduction reaches only those injuries. It does not excuse the other driver for causing the crash.
Illustration only: you broke your ankle against the brake pedal and hit your head on the window. If the defense proves a belt would have prevented the head injury, the argument can reduce what you recover for that injury. It should not touch the ankle.
What about motorcycle helmets?
California Vehicle Code 27803 requires every motorcycle rider and passenger to wear a helmet that meets federal safety standards. If you were not wearing one, expect the insurer to raise it.
Same logic as seatbelts: a missing helmet has nothing to do with a broken leg or road rash. It matters only for head injuries a proper helmet would have prevented, and the defense has to prove that. Our motorcycle accident lawyers see this argument often, and the answer starts with the medical records.
Why you should never admit fault at the scene
What you say at the scene can be used later. "I didn't see you" can end up in the police report and the adjuster's file.
California protects a simple expression of sympathy, like "I am so sorry you are hurt." It does not protect a statement of fault, even inside an apology. And right after a crash, you do not know what really happened. You may not know the other driver was on the phone.
Check on people, call 911, exchange information, and tell the officer what you saw, not who you think is to blame. Our guide on what to do after a car accident in California covers the rest.
What if more than one person was at fault?
When several parties share the blame, Proposition 51, found in Civil Code 1431.2, splits the damages this way:
- Economic damages, like medical bills and lost wages, are joint and several. You can collect the full amount, after any reduction for your own share, from any defendant found at fault.
- Non-economic damages, like pain and suffering, are several only. Each defendant pays only their own percentage.
Illustration only: two drivers are found 70 percent and 30 percent at fault, and you were not at fault. If your non-economic damages were $100,000, the first driver owes $70,000 and the second owes $30,000. If the first driver cannot pay, you cannot collect that $70,000 from the second. For economic damages, you could.
That is why identifying every responsible party early matters. And if you were driving uninsured, a separate rule can limit your non-economic damages no matter who caused the crash. See our guide to Prop 213 and uninsured drivers.
What should I do if the insurance company says I was partly at fault?
- Do not agree to a percentage. The first number is an opening position.
- Do not give a recorded statement to the other driver's insurer before talking to a lawyer.
- Save photos, witness names, and video.
- Watch the deadline. You generally have two years to file a lawsuit, and far less for a claim against a government agency.
Our car accident lawyers look at the evidence, push back on inflated fault numbers, and deal with the insurer so you do not have to. We represent injured people across California, including Los Angeles. Request a free case review or call (310) 746-5775. No fee unless we win.
This guide is general information, not legal advice. Deadlines and rules change; talk to a lawyer about your situation.