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✦ Certified Specialist in Workers’ Compensation Law — Certified by the State Bar of California, Board of Legal Specialization ✦
Serving injured workers across California. Board-certified specialist; no fee unless we win.
By Eman Yazdchi, Esq. · Certified Specialist in Workers' Compensation Law, State Bar of California Board of Legal Specialization
In California, a worker generally has one year from the date of injury to file a workers' compensation claim and must report the injury to the employer within 30 days. The cumulative-trauma discovery rule extends those clocks. Yazdchi Law, a Certified Specialist in Workers' Compensation Law firm, handles California filing-deadline disputes statewide. Request a free case review.
The California workers' compensation system runs on a strict deadline structure, and a missed deadline can extinguish a claim before any medical-legal evaluation, any permanent disability rating, or any insurer negotiation occurs. Every California injured worker is operating against several clocks at once — the 30-day employer-notice clock, the one-year statute of limitations on filing a claim with the WCAB, the discovery rule that applies to cumulative-trauma injuries, and the petition-for-reconsideration clock that runs after any adverse WCAB decision.
The two filing clocks that decide most California cases are the 30-day employer-notice requirement under California Labor Code §5400 and the one-year statute of limitations under California Labor Code §5405. The 30-day clock starts on the date of the injury (or, for cumulative trauma, the date the worker knew or should have known the condition was work-related). The one-year clock runs from the same triggering date. Missing either clock without a recognized exception can result in dismissal of the claim.
Yazdchi Law represents injured California workers statewide from its Palmdale home office at 1125 W Avenue M-14, with appearances at the Van Nuys, Bakersfield, Los Angeles, Long Beach, Pomona, San Bernardino, Riverside, and Oxnard WCAB district offices. Eman Yazdchi is a Certified Specialist in Workers' Compensation Law, certified by the California Board of Legal Specialization, State Bar of California, and the firm regularly defends statute-of-limitations disputes for workers who reported late or filed late under genuine extenuating circumstances.
Each deadline in a California workers' comp case is anchored to a specific statute, a specific triggering event, and a specific consequence for missing it. Understanding which clock applies to which fact pattern is the first step in protecting the claim.
Under California Labor Code §5400, a California injured worker must give the employer notice of the injury within 30 days of its occurrence. Notice can be written or oral; written notice (an email, a text, or a written statement) is preferred because it creates a record. Failure to give notice within 30 days can bar the claim — but the bar is excused if the employer had actual knowledge of the injury, if the worker was incapacitated, or if the employer was not prejudiced by the delay. A late-notice defense is one of the most common opening moves by insurers in disputed California claims.
Under California Labor Code §5405, a California injured worker generally has one year from the date of injury to file the application for adjudication of claim with the WCAB. The one-year clock is extended in several recognized circumstances: when the employer fails to provide the DWC-1 claim form within one working day under California Labor Code §5401, when the employer fails to post the required workers' compensation notice in the workplace, or when the worker received some form of compensation (such as medical care paid by the employer's insurer) within the one-year window — in which case the clock runs from the last payment.
For a cumulative-trauma injury under California Labor Code §3208.1, the one-year filing clock under California Labor Code §5405 runs from the date the worker knew or should have known the condition was work-related — typically the date a treating physician first attributed the back pain, the wrist symptoms, or the shoulder pain to the job. This rule is essential for California warehouse workers, healthcare workers, and construction workers whose bodies break down over months or years without any single accident. The clock does not start at the first day of symptoms; it starts at the date of medical-occupational discovery.
Under California Labor Code §5903, a California injured worker has 25 days from service by mail (or 20 days from electronic service) to file a Petition for Reconsideration after a workers' compensation judge's Findings and Award. The 25-day deadline is one of the most missed deadlines in California workers' comp because it is shorter than most appellate deadlines a non-specialist would expect. A denial of reconsideration is then reviewed by the California Court of Appeal via Writ of Review within 45 days under California Labor Code §5950.
Injured at work? Call (661) 273-1780
Tap to call →Every California workers' compensation claim is filed with the Workers' Compensation Appeals Board. The WCAB operates 24 district offices statewide; the application for adjudication of claim is filed at the district nearest the worker's home or worksite. Yazdchi Law appears at the Van Nuys, Bakersfield, Los Angeles, Long Beach, Pomona, San Bernardino, Riverside, and Oxnard districts. The Division of Workers' Compensation publishes filing forms and the district office directory.
The one-year clock under California Labor Code §5405 is extended when the employer failed to provide the DWC-1 form under California Labor Code §5401, when the employer failed to post the required workplace notice, when the employer paid medical benefits within the year (the clock runs from the last payment), or when fraud or estoppel by the employer or insurer prevented timely filing. Genuine medical incapacity also supports tolling in many cases. A specialist's job is to identify which exception applies before the late-filing defense is raised.
Yazdchi Law P.C., 1125 W Avenue M-14, Suite A, Palmdale, CA 93551. (661) 273-3939. Free consultations on California workers' comp filing deadlines and statute-of-limitations disputes statewide. Workers' compensation attorney fees are contingent and set by the WCAB under California Labor Code §4906 — nothing owed unless the case recovers. Eman Yazdchi, Esq., is a Certified Specialist in Workers' Compensation Law, certified by the California Board of Legal Specialization, State Bar of California.
Last reviewed by Eman Yazdchi, Esq., May 2026.
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