California Labor Code Section 5814 lets a workers’ compensation judge add up to 25 percent, capped at $10,000, to any benefit an insurance carrier unreasonably delayed or refused to pay. The penalty is discretionary, not automatic, and you have two years from the date the payment was due to file a petition with the Workers’ Compensation Appeals Board.1California Legislative Information. California Code LAB – Section 5814
What Makes a Delay Unreasonable
An insurer’s only valid excuse for holding back a benefit is a genuine doubt, medical or legal, about whether it actually owes the payment. The California Supreme Court set this standard in Kerley v. Workmen’s Comp. App. Bd. in 1971, placing the burden on the employer or carrier to produce real evidence supporting the doubt.2Justia. Kerley v. Workmen’s Comp. App. Bd. Without that, the delay is unreasonable as a matter of law.
The standard covers every category of workers’ comp benefit: temporary disability, permanent disability, authorized medical treatment, mileage reimbursement for medical trips, and supplemental job displacement vouchers.3Department of Industrial Relations. California Code of Regulations Title 8 Section 10112.2 Internal processing errors, understaffing, or an adjuster sitting on a clear report from your treating physician are not defenses. They are exactly the kind of failure the penalty exists to punish.
When a Payment Is Officially Late
Three deadlines do most of the work in penalty cases:
- Temporary disability. The first check must go out within 14 days of the employer learning of the injury and resulting disability. After that, payments are due every two weeks for as long as the disability lasts.4California Legislative Information. California Labor Code Section 4650
- Medical bills. The uncontested portion of a treatment bill must be paid within 15 working days of the insurer receiving it.5Department of Industrial Relations. DWC FAQs on E-Billing
- Supplemental job displacement vouchers. Failing to provide a required voucher can independently support a Section 5814 penalty finding.3Department of Industrial Relations. California Code of Regulations Title 8 Section 10112.2
Any payment that blows past these deadlines without a legitimate medical or legal justification is a potential penalty candidate. The longer the delay and the weaker the excuse, the stronger the claim.
How the Penalty Amount Is Set
Section 5814(a) sets the penalty at up to 25 percent of the delayed amount or up to $10,000, whichever is less.1California Legislative Information. California Code LAB – Section 5814 Two parts of that formula regularly trip people up.
“Up to” means the number is not fixed. The WCAB judge has discretion to land anywhere from zero to 25 percent, weighing what the statute calls “a fair balance and substantial justice between the parties.” A short delay from a genuine administrative mix-up may draw a lower percentage than a months-long refusal to pay clearly owed benefits.
The $10,000 figure is a per-penalty ceiling. On a $50,000 delayed permanent disability payment, 25 percent would be $12,500, but the award caps at $10,000. On a $5,000 delay, the maximum is $1,250, because 25 percent of $5,000 falls under the cap. Each separate act of delay or refusal is its own calculation, so a carrier that delays several different benefits can face several stacked penalties on the same claim.
The Two-Year Deadline to File
Section 5814(g) imposes a hard two-year statute of limitations. The penalty claim must be filed within two years of the date the delayed payment was originally due.1California Legislative Information. California Code LAB – Section 5814 Miss that window and the penalty is gone, no matter how egregious the delay was. Workers’ comp cases often drag on for years, and it is easy to let older delays slip past the deadline while you focus on getting current benefits paid. If you suspect a benefit was late, document it and file sooner rather than later.
The Insurer’s 10 Percent Self-Correction Option
Section 5814(b) lets a carrier head off a full penalty by paying a self-imposed 10 percent, along with the full amount owed, within 90 days of discovering its own error. Doing so replaces the potential 25 percent penalty entirely.1California Legislative Information. California Code LAB – Section 5814
On a $5,000 delay, this drops the exposure from a potential $1,250 to $500. From your perspective, you receive the overdue benefit plus an extra 10 percent and skip the litigation. The timing matters: the insurer must self-correct before you file a petition. Once your petition is on file at the WCAB, this option closes and the full 25 percent is back on the table.
Evidence You Will Need
Winning a penalty claim comes down to showing a gap between when the insurer should have paid and when it actually did, with no legitimate justification. Start by requesting a complete payment history or benefit printout from the claims adjuster. That ledger shows every check issued, its mailing date, and the benefit period it covers.
Compare those dates against your medical records. If your treating physician’s report declared you temporarily disabled on the first of the month and the first check did not go out until six weeks later, that gap is your penalty claim in miniature. The 14-day deadline for the first temporary disability payment gives you a concrete statutory benchmark to measure against.4California Legislative Information. California Labor Code Section 4650
Save every email, letter, and voicemail you sent the adjuster about missing payments. These show you flagged the problem and the insurer still did not act. If you have proof-of-service documents for any prior awards or stipulations, keep those too, because they establish the carrier knew it had a legal obligation. Organize everything chronologically so the timeline of non-payment is obvious at a glance.
Filing the Petition
A penalty petition can only be filed inside a pending case at the Workers’ Compensation Appeals Board. If you do not already have one, you need to file an application for adjudication of claim first.6Department of Industrial Relations. How to File a Petition for Penalties Once a case exists, you submit a Petition for Penalties with a verification and a proof of service showing copies went to the insurance carrier and its attorneys. The original goes to your local WCAB district office.
When the case is ready to be heard, you also file a Declaration of Readiness to Proceed. The board usually sets a Mandatory Settlement Conference first, where a judge pushes both sides toward a resolution. If the case does not settle, it moves to trial. The judge reviews the payment records, hears testimony, and issues a Findings and Award ordering the penalty if the delay was unreasonable.
Attorney’s Fees After an Award
If the delay happens after the WCAB has already issued an award in your case, Section 5814.5 requires the board to order the insurer to pay your reasonable attorney’s fees on top of any Section 5814 penalty.7California Legislative Information. California Code LAB Section 5814.5 This fee-shifting only applies once an award exists. Delays that happen before any award is issued can still trigger the 25 percent penalty, but the carrier will not be forced to cover your legal costs. Once you have a formal award in hand, an insurer that drags its feet faces the penalty and your legal bill, which is usually enough to prompt compliance.