The short answer is it depends on who is doing the harassing. If your harasser is a supervisor, the answer is no. California holds employers strictly liable for sexual harassment committed by supervisors, meaning the company is liable whether it knew about the conduct or not. If the harasser is a coworker or someone outside the company, the standard is different. In most cases, the employer is liable only if it knew or should have known about the harassment and failed to act.
That distinction matters, and it is the reason one of the first questions we ask every client is “who did this to you, and what was their role?”
Strict Liability for Supervisor Harassment
Under California’s Fair Employment and Housing Act (FEHA), employers are automatically liable for harassment committed by a supervisor. This is called strict liability. It means the employee does not have to prove that the company knew about the behavior, looked the other way, or failed to enforce a policy. The supervisor’s conduct is treated as the employer’s conduct, and liability for the conduct does not need to be proven.
Government Code § 12940(j)(1) establishes this rule. The reasoning behind it is straightforward: supervisors act with the authority the employer gave them. When a supervisor uses that authority to harass, the employer bears responsibility for putting that person in a position of power.
This is true even if the employer had a written anti-harassment policy. It is true even if the employer conducted annual training. Those steps may be good practices, but they do not shield the company from liability when a supervisor is the one causing the harm.
Who Counts as a Supervisor?
FEHA defines a supervisor quite broadly. A supervisor is anyone with authority to hire, fire, transfer, promote, discipline, assign, or direct other employees, so long as that authority requires independent judgment. It does not have to be someone with “manager” or “supervisor” in their title.
In practice, this means a shift lead who assigns work and approves time off may qualify. A team lead who writes performance reviews and recommends promotions may qualify. If the person had real authority over your working conditions, and used that position to harass you, the employer faces strict liability regardless of what the org chart says.
The “Knew or Should Have Known” Standard for Coworker Harassment
When the harasser is a coworker rather than a supervisor, the legal standard changes. Under Government Code § 12940(j)(1), the employer is liable for coworker harassment only if it “knew or should have known of the conduct and failed to take immediate and appropriate corrective action.”
Two parts of that test deserve attention. First, the law does not require proof that a specific manager was told about the harassment. “Should have known” is enough. If the conduct was open and obvious, such as occurring in common areas, or if there were multiple witnesses, a court can find that the employer should have known even without a formal complaint.
Second, even when the employer did know, it still has to respond appropriately. A written warning that changes nothing, or a conversation with the harasser that leads to no consequences, may not satisfy the “immediate and appropriate corrective action” requirement.
We see this happen frequently. A worker reports harassment to HR, and HR sends a boilerplate email reminding the team about the company’s policy. The harassment continues. In that situation, the employer knew and failed to act in any meaningful way. That is enough for liability.
Harassment by Customers, Vendors, or Other Non-Employees
California extends this same “knew or should have known” standard to harassment by people outside the company. If a customer, client, vendor, or independent contractor harasses an employee, and the employer knows about it and does nothing, the employer can be held liable.
This happens more often than you might expect, especially in hospitality, retail, and healthcare. An employee reports that a regular customer makes sexual comments every visit, or that a vendor’s representative behaves inappropriately during site visits. If management is aware and the behavior continues unchecked, the company has a problem.
The Employer’s Duty to Prevent Harassment
Beyond the question of liability after harassment occurs, FEHA imposes a separate obligation: employers must take all reasonable steps to prevent harassment from happening in the first place. Under Government Code § 12940(k), failing to do so is an independent violation.
What counts as “reasonable steps” depends on the size and nature of the business, but California courts look for things like a written anti-harassment policy distributed to all employees, a clear complaint procedure with multiple reporting channels, regular harassment prevention training (which California law requires for employers with five or more employees), and prompt, thorough investigation of complaints.
An employer that has none of these safeguards in place has a much harder time arguing it acted reasonably. And the absence of a prevention framework can itself support a claim, even before any individual act of harassment is proven.
Why This Matters for Your Case
The liability standard affects what you need to prove and how strong your case is. If your harasser was a supervisor, the burden is significantly lower. You do not need to show that you reported the conduct or that the company ignored your complaint. The harassment itself is enough.
If your harasser was a coworker, you will need to show the employer had notice, either actual or constructive. But that notice can come from many places: a formal HR complaint, an email to a manager, visible conduct that anyone in a supervisory role should have observed, or even a pattern of behavior that the company’s own investigation should have uncovered. A California sexual harassment lawyer can evaluate the facts and tell you which standard applies and what evidence will matter most.
Free Consultation with a California Sexual Harassment Attorney
If you experienced sexual harassment at work and are unsure whether your employer can be held responsible, we can help you answer that question. Yoosefian Law Firm, P.C. represents employees throughout California in sexual harassment cases against employers of every size, and we understand how to build these claims whether the harasser was a supervisor, a coworker, or someone outside the company.
Call us at (818) 275-1529 or complete our online contact form. Consultations are free and confidential, and we will review your situation and explain the strongest path forward.