California · Workers' Compensation
Does Workers' Comp Cover Being Assaulted at Work in California?
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Eman Yazdchi, Esq., Certified Specialist in Workers' Compensation Law, California Board of Legal Specialization, State Bar of California.
California Board of Legal Specialization, State Bar of California

California Board of Legal Specialization, State Bar of California
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Yes. In most cases, being assaulted at work by a coworker, a customer, or a stranger is covered by California workers' comp, because the injury happened on the job. A narrow exception applies if you started the physical fight yourself. If the attack causes PTSD, anxiety, or another psychiatric injury, workers' comp can cover that too, often under an easier standard of proof than an ordinary stress claim.
Is an Assault at Work Covered by California Workers' Comp?
Yes. California workers' comp usually covers an assault at work, no matter whether a coworker, a customer, or a stranger attacked you, as long as it happened on the job.
A physical attack at work is a work injury like any other under California law. If you were hurt while doing your job, workers' comp generally pays for your medical care and part of your lost wages. It does not matter who threw the first punch, unless that person was you.
This rule covers a coworker who snapped during an argument, a customer who turned violent, a patient who struck a caregiver, or a stranger with no real connection to your job at all. California's workers' comp system does not start by asking who was at fault. It asks only whether your injury is tied to the work you were doing for your employer.
A few situations change the answer. If you started the fight, a specific exclusion can apply. If your employer itself carried out or ordered the attack, you may have a separate lawsuit on top of your claim. If the assault leaves you with a mental health injury instead of, or along with, a physical one, a different legal standard applies. This guide walks through each of those, plus California's workplace violence prevention law and what to do right after an attack.
Does it matter if a coworker, a customer, or a stranger assaulted me?
No. California workers' comp does not start with who attacked you. It asks only whether the attack took place while you were working.
Under Labor Code section 3600, a work injury is covered when it arises out of your job and happens during your employment. The law does not single out who caused it. That is why workers' comp usually covers a punch from a coworker, an attack by an angry customer, or an assault by a total stranger, as long as you were doing your job when it happened. For the general no-fault rule behind this, see our guide to California's no-fault workers' comp liability rule.
California's workplace violence prevention law sorts attacks into four types, and all four can support a workers' comp claim: an attack by someone with no legitimate reason to be at the workplace, an attack by a customer, client, or patient, an attack by a coworker or supervisor, and an attack by someone with a personal relationship to an employee, such as a partner, who shows up at work (Labor Code section 6401.9).
There is one more protection worth knowing. Say a customer or a stranger attacks you because of bias tied to your race, color, religion, national origin, age, disability, sex, gender, gender identity or expression, or sexual orientation. That bias alone does not let an insurer label the attack a personal dispute and deny your claim on that basis. California law says bias like that does not create a personal relationship between you and the attacker for workers' comp purposes (Labor Code section 3600(c)).
What is the initial physical aggressor rule, and can it block my claim?
It can, but only if you started the physical fight. If someone attacked you and you did not throw the first blow, this exception does not apply to you.
California law excludes one specific situation from coverage: a fight you started yourself.
Where the injury does not arise out of an altercation in which the injured employee is the initial physical aggressor.
In plain words, if you threw the first punch in a fight, your own injuries from that fight are not covered. If someone else started it and you were hurt, this exclusion does not apply to you, even if you defended yourself or fought back.
This exclusion is narrow. It only applies to an altercation, meaning a fight with some back-and-forth conduct. Being attacked without provoking it, being ambushed, or being attacked while trying to walk away is not the same as being the initial physical aggressor. Whether you were the initial physical aggressor is a factual question, and witness statements, security video, and incident reports often decide it, so save anything that shows how the confrontation actually began.
This rule is separate from a narrower exclusion that applies only when the injured worker is convicted of a felony tied to the injury. The initial aggressor rule can apply even when no criminal case is ever filed.
Can I sue my employer or a coworker for the assault instead of filing a claim?
Almost never against your employer, and only in a narrow situation against a coworker. Workers' comp is normally your only path against your employer for a workplace injury.
California's exclusive remedy rule normally blocks a lawsuit against your employer for a work injury. Workers' comp benefits take the place of that lawsuit (Labor Code section 3602). There is a narrow exception for an assault the employer itself commits.
Where the employee's injury or death is proximately caused by a willful physical assault by the employer.
This exception is about the employer itself, such as an owner, a manager, or a supervisor acting for the company, deliberately attacking you. It is rare. An angry coworker who is not acting for the company raises a different legal question.
A coworker who assaults you falls under a separate rule. You generally cannot sue a coworker for an ordinary workplace injury, but California law allows a lawsuit when a coworker's attack on you was willful and unprovoked, not just careless (Labor Code section 3601). Our guide on suing a coworker for a work injury walks through that test and what evidence to save.
A customer, a patient, or a stranger is neither your employer nor your coworker, so the exclusive remedy rule does not protect that person at all. California law lets you pursue a separate civil claim against that attacker while you also collect workers' comp from your employer for the same injury (Labor Code section 3852).
Can I get workers' comp for PTSD after a violent attack at work?
Yes, and often more easily than an ordinary stress claim. California law lowers the proof standard for a psychiatric injury caused by a violent act.
Most psychiatric injury claims must show that work events caused most of the problem, more than half of all causes combined. When the injury comes from being the victim of a violent act, the bar drops. You only need to show that work events were a substantial cause, generally 35 to 40 percent of the total causes (Labor Code section 3208.3).
There is a possible second advantage. Most psychiatric claims also require six months on the job before you can file. That rule does not apply when the psychiatric injury is caused by a sudden and extraordinary employment condition, and a sudden violent attack can sometimes meet that standard, so a worker hurt early in a new job is not always shut out just because the job was new.
This page only covers how a violent act changes those two tests. For the full predominant-cause standard, the evaluation process, and how a psychiatric claim is proven and paid, see our psychiatric injury workers' comp guide.
What should I do right after a workplace assault?
Get medical care first, then report the attack and document what happened before memories fade.
A few steps protect both your health and your claim:
- Get medical care right away, even if the injury seems minor. Tell the provider the injury happened at work and how it happened.
- Call the police if the attack may be a crime. A police report documents what happened from an independent source and will not hurt your workers' comp claim.
- Report the attack to your employer in writing. California law requires written notice to your employer within 30 days of the injury (Labor Code section 5400).
- Save evidence while it is fresh: photos, threatening texts or messages, witness names and contact information, and any security camera footage.
- Ask whether your employer keeps a written workplace violence prevention plan and incident log. Most California employers must keep both since July 1, 2024 (Labor Code section 6401.9).
- File your workers' comp claim. You generally have one year from the date of injury to start the legal process for benefits (Labor Code section 5405).
| Step | Deadline | Law |
|---|---|---|
| Report injury to your employer | Within 30 days | Labor Code 5400 |
| File your workers' comp claim | Within 1 year | Labor Code 5405 |
| Insurer must accept or deny | Within 90 days | Labor Code 5402 |
| First disability check | Within 14 days | Labor Code 4650 |
| Appeal a denied treatment | Within 30 days | Labor Code 4610.5 |
California's workplace violence prevention law is a safety rule enforced by Cal/OSHA, not a workers' comp rule. It does not decide whether your claim gets paid. Even so, a written plan and an incident log can become useful records of what your employer knew and did before and after the attack.
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Workplace violence can happen anywhere: a warehouse floor, a retail counter, a hospital room, or a delivery route. Yazdchi Law represents injured workers across the Antelope Valley, the San Fernando Valley, and the greater Los Angeles region, with workers' compensation appeals board hearings at venues including Van Nuys, Los Angeles, Long Beach, Pomona, San Bernardino, Riverside, and Oxnard.
The firm reviews each workers' comp matter individually, including cases involving an assault, a robbery, or another violent incident at work. The consultation is free, and there is no fee unless you recover compensation.
Call (661) 273-1780 or use the contact form to talk through what happened and what records to gather first.
Related questions
A few more California workers' comp questions come up alongside this one.
Injured at work? Talk it through for free.
Most claims must be filed within one year under Labor Code section 5405. A free call tells you where your clock stands.
Frequently Asked Questions
Does it matter if the person who attacked me was not a coworker or did not work for my employer?
What if I am not sure who started the fight?
Do police need to catch or charge my attacker before I can get workers' comp?
Will filing a police report hurt my workers' comp claim?
Can workers' comp pay for therapy if the assault did not leave a physical injury?
Does my employer have to have a workplace violence prevention plan?
How long do I have to report the assault and file my claim?
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