A serious and willful misconduct claim can raise an injured worker’s compensation by one-half, and the employer usually pays that increase out of its own pocket. Labor Code section 4553 applies when the injury results from serious and willful misconduct by the employer or by certain managers and officers. California’s Insurance Code bars insurers from covering the added amount, though they may cover the defense. These petitions often follow a Cal/OSHA citation, and the citation record tends to become the main battleground.
What does Labor Code section 4553 provide?
A 50 percent increase in compensation. Section 4553 says “The amount of compensation otherwise recoverable shall be increased one-half, together with costs and expenses not to exceed two hundred fifty dollars ($250), where the employee is injured by reason of the serious and willful misconduct” of the people the statute lists.
The increase is calculated on the workers’ compensation benefits the employee would otherwise receive, so the dollar figure depends on the injury. For a serious injury with lengthy disability, the increase can be large. The claim is filed in the workers’ compensation system, before the Workers’ Compensation Appeals Board, not in civil court.
Whose misconduct counts?
Not every employee’s. The statute names three groups. For any employer, it’s “The employer, or his managing representative.” For a partnership, it’s “one of the partners or a managing representative or general superintendent thereof.” For a corporation, it’s “an executive, managing officer, or general superintendent thereof.”
That list is the first defense question. A line supervisor or a foreman with no real authority over company policy may not qualify, and the employee has to prove that the person whose conduct caused the injury fits one of the statute’s categories. The more senior and policy-setting the person’s role, the harder this defense becomes. A plant manager who controls safety budgets and practices is a much easier target than a shift lead.
Organization charts and job descriptions help here, but they don’t settle it. The question is what authority the person actually exercised. A manager whose title sounds junior but who decided which hazards got fixed, and when, can fit the statute. A vice president with no involvement in the operation where the injury happened may not be the right target at all. Defense counsel usually builds this part of the case from the bottom up: who set the safety rules for that operation, who approved the spending to fix the hazard, and who knew about it before the injury.
What evidence decides these petitions?
Usually the paper trail before the injury. Maintenance requests, safety committee minutes, earlier complaints, near-miss reports, and emails about the hazard show what management knew and when. The same documents can also show that management responded, ordered parts, changed procedures, or trained workers, which is often the best answer to a claim of willful disregard. Employers that keep a clear record of corrective steps tend to defend these petitions far better than those whose response happened in hallway conversations.
What makes misconduct “serious and willful”?
More than negligence. California decisions have long treated serious and willful misconduct as conduct the actor knew, or had reason to know, was likely to cause serious injury, done with a positive, active, wanton, reckless, and absolute disregard of its possible consequences. Gross negligence, by itself, usually isn’t enough.
In practice, petitions tend to follow a pattern. A safety hazard was known, sometimes because Cal/OSHA had cited it, a worker had complained, or an internal audit had flagged it, and the responsible manager didn’t fix it. The petitioner argues that the knowledge plus inaction equals willfulness. The defense focuses on what the manager actually knew, what steps were taken, and whether the hazard was obvious enough that serious injury was likely.
Can insurance pay for a serious and willful award?
Not the increase. Insurance Code section 11661 says “An insurer shall not insure against the liability of the employer for the additional compensation recoverable for serious and willful misconduct of the employer or his agent.”
The same section allows one kind of coverage: “An insurer may, however, provide insurance against the expense of defending any suit for serious and willful misconduct against an employer or his agent.” Some workers’ comp policies, or separate policies, provide that defense coverage. Employers should check their policies when a petition arrives, because the carrier’s defense counsel handling the underlying comp claim may not be assigned to defend the S&W petition.
That split creates a conflict worth noticing. The insurer pays the regular benefits, and the employer pays the increase. The two may have different incentives about settling the underlying claim, and the employer may want its own counsel.
| Issue | What the statute says | Defense points |
|---|---|---|
| Amount of increase | One-half of compensation otherwise recoverable, plus costs up to $250 | Challenge the underlying benefit amounts |
| Whose conduct | Employer, managing representative, partners, executives, managing officers, general superintendents | Actor lacked policy-level authority |
| Standard | Serious and willful misconduct | Negligence or even gross negligence isn’t enough |
| Insurance | Increase not insurable; defense costs may be | Tender the defense; review the policy |
How do Cal/OSHA citations affect an S&W petition?
They’re often the petitioner’s best evidence. A citation, above all one classified as willful or serious, can be offered to show the hazard existed and that management knew about it. An earlier citation for the same hazard is even more damaging, because it shows notice.
That makes the Cal/OSHA appeal a strategic decision with consequences beyond the penalty. An employer that accepts a willful citation to save on the penalty may make the S&W petition much harder to defend. Before settling a Cal/OSHA appeal after a serious injury, the employer should consider what the settlement language will say and how it may be used. The firm’s post on Cal/OSHA serious injury reporting covers the reporting steps that start that process.
After a serious injury, before the petition is filed
- Preserve the incident investigation, photographs, equipment and maintenance records, prior safety complaints, training logs, and the emails and texts of the managers responsible for safety, under a litigation hold.
- Calendar every deadline in the Cal/OSHA inspection and the workers’ comp case, and notify the comp carrier and any policy that may cover S&W defense costs.
- Identify the managers whose conduct the petition will target and their authority over safety, and avoid any action against the injured worker or witnesses that could look like retaliation.
- Gather earlier citations, audits, and complaints about the same hazard, along with records of every corrective step taken.
- Get separate defense counsel’s advice before resolving any Cal/OSHA citation or settling the underlying comp claim.
S&W petitions sit alongside safety retaliation and other employment claims. The firm’s page on defending employment lawsuits in California describes how those related matters are handled.
Serious and willful misconduct questions
Can an employee bring an S&W claim against the employer in civil court?
No. Serious and willful misconduct is a workers’ compensation remedy. It increases the comp award, and it’s decided by the Workers’ Compensation Appeals Board. It doesn’t by itself create a right to sue the employer for tort damages. Civil suits against employers for workplace injuries are limited to narrow statutory exceptions to workers’ comp exclusivity.
Does the employer’s insurance pay the increase if the employer is a small business?
No. Insurance Code section 11661 bars insurers from covering the increase, regardless of the employer’s size. The employer pays it directly. The policy may still cover the cost of defending the petition. Small employers often discover the gap only after a petition is filed, so a policy review after any serious injury is worthwhile.
What if the employee also broke a safety rule?
California has a separate statute that reduces compensation when the employee’s own serious and willful misconduct caused the injury, subject to important exceptions, including for serious injuries and death. An employee’s violation of a safety rule can also be a fact in defending the employer’s S&W petition, because it bears on causation and on whether the employer’s conduct caused the injury.
Is a supervisor’s failure to enforce a rule enough?
Usually not, standing alone. The petitioner must show the misconduct belongs to someone in the statute’s categories and that it was serious and willful, not careless. A supervisor who didn’t enforce a rule may be negligent, and the employer may still face a Cal/OSHA citation, but the S&W standard requires more. Evidence of what senior managers knew is usually where these cases are decided.
If your company is facing an S&W petition
If your company has received a serious and willful misconduct petition after a workplace injury, the safety records and what senior managers knew usually decide how much exposure is real. Rosenberger + Kawabata represents employers defending employment lawsuits and claims through its business litigation practice, including claims involving workplace safety and serious injuries. Contact Rosenberger + Kawabata online for a confidential consultation, or call (310) 894-6921.
Sources
The statutes are Labor Code section 4553 and Insurance Code section 11661.
This post is general information about California and federal employment law as of November 7, 2026. It is not legal advice, and reading it does not create an attorney-client relationship. Employment statutes, regulations, and court decisions change often, and the outcome of any claim depends on its facts. Past results do not guarantee future outcomes.