California Negligence Law: Elements, Damages, and Deadlines

To win a negligence case under California negligence law, you have to prove four things: the other party owed you a duty of care, breached it, caused your injury, and that you suffered actual damages. The standard of proof is a preponderance of the evidence, which means more likely than not. California also follows a pure comparative fault system, so even if you were partly to blame, you can still recover something; your award is reduced by your percentage of fault rather than wiped out. Civil Code Section 1714(a) sets the baseline, making everyone responsible for injuries caused by their failure to use ordinary care in managing their property or conduct.¹

The Four Elements You Have to Prove

Every negligence claim stands on the same four legs. Miss one and the case collapses.

Duty. The defendant owed you a legal obligation to act with reasonable care. Section 1714(a) applies broadly to anyone managing their own conduct or property, so in most everyday situations, including car accidents, slip-and-falls, and routine commercial interactions, duty is not seriously contested.¹
Breach. The defendant failed to meet that standard, either by doing something a reasonable person would not have done or by failing to do something a reasonable person would have.
Causation. The breach was a substantial factor in causing your injury. California uses its own test here rather than the “but-for” analysis common in other states.
Damages. You suffered real, measurable harm: medical bills, lost income, pain and suffering, property damage. Careless conduct that happens to hurt no one is not actionable negligence.

You must prove each element by a preponderance of the evidence. That is a lower bar than the criminal “beyond a reasonable doubt” standard, but it still requires concrete proof at every link in the chain.

How Causation Actually Works in California

California uses the “substantial factor” test for causation. The question is not whether your injury would have happened without the defendant’s conduct, but whether that conduct was a meaningful contributor to it. CACI No. 430 defines a substantial factor as one that “a reasonable person would consider to have contributed to the harm.” It does not have to be the only cause, and it does not have to be the biggest cause. It just has to be more than remote or trivial.²

This matters most when more than one thing caused the harm. Picture two drivers running red lights from different directions; one hits you, the other forces you to swerve. Under a strict “but-for” test, each driver could argue the crash would have happened anyway because of the other. California’s approach cuts through that. When multiple independent forces each would have been enough on their own, each actor can still be held liable as a substantial factor.²

Causation also carries a foreseeability requirement. The type of injury has to be a reasonably foreseeable consequence of the defendant’s conduct. Bizarre, freak chains of events can break the causal link even when the defendant was clearly careless.

How Your Own Fault Affects Recovery

California follows pure comparative negligence, one of the more plaintiff-friendly rules in the country. Your own carelessness reduces your recovery but never eliminates it. A jury that finds you 70% at fault and the defendant 30% at fault still awards you 30% of your damages. The California Supreme Court adopted this rule in Li v. Yellow Cab Co., holding that responsibility should be assigned “in direct proportion to the amount of negligence of each of the parties.”³

Most other states use “modified” comparative fault, which bars recovery once your fault crosses 50% or 51%. A few still follow pure contributory negligence, where any fault on your part wipes out the claim entirely. California does neither. The fault question is always about percentages, never about a total bar.

When a defendant raises comparative fault, the jury decides whether you were also negligent and whether your negligence was a substantial factor in your injury. If both answers are yes, the jury assigns you a percentage, and the judge reduces your damages accordingly.⁴

When More Than One Person Is Responsible

With multiple defendants, California splits liability by the type of damages involved. Under Civil Code Section 1431.2, each defendant is jointly liable for your economic damages but only severally liable for your non-economic damages.⁵

Economic damages are your verifiable financial losses: medical bills, lost wages, repair costs, burial expenses. If three defendants are each found 20% at fault and a fourth is found 60% at fault, you can collect the entire economic award from any single one of them. That defendant can then try to recoup from the others, but their collection problem is not yours. This protects you when one defendant is judgment-proof.

Non-economic damages work differently. Pain and suffering, emotional distress, and loss of companionship are each defendant’s problem only in proportion to their share of fault. A defendant found 20% at fault pays 20% of the non-economic award and nothing more.⁵ The economic/non-economic split often drives strategy in multi-defendant cases because it directly shapes what you can realistically collect.

When the Defendant’s Employer Can Also Be Sued

Under the respondeat superior doctrine, employers are vicariously liable for the negligent acts of their employees committed within the scope of employment.⁶ A delivery driver who causes a crash while on a route pulls the delivery company into the case. The act does not have to be authorized or even wise; it just has to be the kind of thing the employee was hired to do, or a reasonably foreseeable consequence of the work.

The main limit is the “going and coming” rule, which generally shields the employer from liability for what happens during an employee’s normal commute.⁷ Exceptions chip away at that protection when the employee was running a work errand, driving a company vehicle as a required part of the job, or mixing personal and work travel.⁸ For an injured plaintiff, reaching the employer often means reaching commercial insurance and corporate assets instead of an individual’s thin personal policy.

Negligence Per Se: A Shortcut Through the Breach Element

If the defendant broke a safety law and that violation caused your injury, you may be able to skip the usual “what would a reasonable person have done” analysis. California Evidence Code Section 669 creates a presumption of negligence when four conditions are met:

The defendant violated a statute, ordinance, or regulation of a public entity
That violation was a direct cause of death or injury to person or property
The injury was the type the law was designed to prevent
The injured person was someone the law was designed to protect

All four have to line up.⁹ A driver who runs a red light and hits a pedestrian in the crosswalk is the textbook case: the red-light violation is a statutory breach, the injury is exactly what traffic laws exist to prevent, and the pedestrian is exactly who those laws exist to protect.

The presumption is not an automatic verdict. The defendant can rebut it by showing the violation was excused. Under CACI No. 420, valid excuses include a physical incapacity that made compliance unreasonable, inability to obey the law despite reasonable care, an emergency not caused by the defendant’s own misconduct, or a situation where following the law would have created a greater risk of harm.¹⁰ The defendant carries the burden of proving the excuse.

What You Can Recover

A successful claim can produce three categories of compensation.

Economic Damages

These are your out-of-pocket losses: medical bills, future medical care, lost wages, reduced earning capacity, property repair or replacement, and the cost of household services you can no longer perform. They have to be objectively verifiable, meaning you can point to bills, pay stubs, and estimates to back them up.⁵ California does not cap economic damages in standard negligence cases.

Non-Economic Damages

Pain and suffering, emotional distress, loss of enjoyment of life, disfigurement, and loss of companionship fall here. These are subjective and are not capped in ordinary personal injury cases. Medical malpractice is the big exception. Under California’s updated MICRA law (AB 233), non-economic damages in medical negligence cases are capped at $470,000 for non-fatal injuries and $650,000 for wrongful death in 2026. Both caps increase annually and reach $750,000 and $1,000,000 respectively by 2034, after which they adjust for inflation.

Punitive Damages

Punitive damages are meant to punish the defendant, not compensate you, and they are rare. You must prove by clear and convincing evidence that the defendant acted with malice, oppression, or fraud. Ordinary carelessness does not qualify. Malice means an intent to injure you or willful and conscious disregard for your safety. Oppression requires conduct so cruel and unjust that it goes beyond mere negligence.¹¹ California sets no statutory cap, but courts can reduce excessive awards on constitutional grounds.

Employers face an extra hurdle. A company is only liable for punitive damages based on an employee’s actions if a corporate officer, director, or managing agent authorized or ratified the conduct, or if the employer knowingly hired someone unfit for the job.¹¹

Filing Deadlines That Can End Your Case

Missing a filing deadline is the fastest way to lose a valid claim. The limits depend on who you are suing and what kind of injury is involved.

Standard Personal Injury Claims

You have two years from the date of the injury to file a lawsuit for personal injury caused by someone else’s negligence.¹² The clock usually starts on the date of the incident. Property damage claims get three years.

The Discovery Rule

Sometimes you do not know you have been injured right away, or you do not realize someone else caused it. California’s delayed discovery rule pushes the start of the limitations period back to the date you discovered, or reasonably should have discovered, both the injury and its negligent cause. This comes up a lot in medical malpractice cases where a surgical error is hidden for months, and in toxic exposure cases where symptoms build slowly.¹³ The rule does not reward willful ignorance. Once you have enough information to suspect wrongdoing, the clock starts whether you actually investigate or not.

Claims Against Government Entities

If a government agency or employee caused your injury, the timeline shrinks dramatically. You must file an administrative claim with the responsible agency within six months of the incident.¹⁴ This is not a lawsuit; it is a required first step. If the agency denies the claim or fails to respond, you then have six months from the denial to file suit. People miss this deadline constantly because they assume they have the full two years. They do not.

Tolling for Minors

If the injured person is under 18, the statute of limitations pauses until their 18th birthday. Once they turn 18, the standard two-year clock begins, giving them until age 20 for most personal injury claims. The six-month government claims deadline is not automatically tolled for minors, which catches many families off guard.

1
California Legislative Information. California Code CIV 1714 – Responsibility for Willful Acts and Negligence
2
Justia. CACI No. 430 Causation: Substantial Factor
3
Justia Law. Li v. Yellow Cab Co.
4
Justia. CACI No. 405 Comparative Fault of Plaintiff
5
Justia Law. California Civil Code Chapter 2 – Joint or Several Obligations
6
Justia. CACI No. 3701 Tort Liability Asserted Against Principal – Essential Factual Elements
7
Justia. CACI No. 3725 Going-and-Coming Rule – Vehicle-Use Exception
8
Justia. CACI No. 3726 Going-and-Coming Rule – Business-Errand Exception
9
California Legislative Information. California Evidence Code 669 – Presumption of Failure to Exercise Due Care
10
Justia. Negligence per se: Rebuttal of the Presumption of Negligence – Violation Excused
11
California Legislative Information. California Code, Civil Code – CIV 3294
12
California Legislative Information. California Code CCP 335.1
13
Justia. CACI No. 455 Statute of Limitations – Delayed Discovery
14
California Legislative Information. California Government Code 911.2