The Quietest Way to Lose a Good Claim
Injured workers rarely lose California comp claims because a judge decided against them. They lose them because a date passed.
Deadlines in this system are unforgiving, they don’t announce themselves, and nobody on the other side has any incentive to remind you. Here are the ones that matter.
30 Days — Report the Injury
Report your injury to your employer as soon as possible. California generally requires notice within 30 days, and blowing past it can jeopardize the claim.
Practical guidance that matters more than the rule itself:
- Report in writing and keep a copy. Verbal reports to a supervisor evaporate, and memories about them conflict later with striking consistency.
- Report even if it seems minor. The back tweak you worked through on Tuesday is the herniated disc you’re operating on in March, and by then the question will be why you never mentioned it.
- Ask for the claim form (DWC-1). Your employer is required to provide one after learning of the injury. If you don’t get one, that’s worth documenting too.
- Cumulative trauma still gets reported even without an accident. See below on how its clock works differently.
One Year — File the Claim
Under Labor Code section 5405, proceedings generally must be commenced within one year from whichever of these produces the longest period:
- The date of injury;
- The date of the last payment of indemnity for temporary or permanent disability; or
- The date medical or hospital benefits were last furnished.
“Whichever is longest” is the part people miss, and it usually helps you. If the carrier has been paying for your treatment, the one-year window keeps extending from the last date benefits were furnished — not from the day you were hurt.
Which produces the trap. Benefits stop, months pass while you assume nothing has changed, and the one-year clock has been running the whole time from that last payment. The moment your benefits stop is the moment to get advice, not the moment to wait and see whether they resume.
Five Years — New and Further Disability
Labor Code section 5410 generally allows proceedings within five years of the date of injury on the ground that the original injury has caused new and further disability.
This is the reopening provision. If you resolved your case by Stipulations and your condition genuinely worsened — the fusion didn’t hold, the shoulder deteriorated further, a new area became involved — you may be able to reopen within that five-year window.
Two hard limits:
- Five years from the date of injury, not five years from your award. On a case that took three years to resolve, you have two years left, not five.
- A Compromise and Release ordinarily forecloses it entirely. That’s part of what you’re giving up in a lump-sum settlement, and it’s one of the strongest arguments for understanding your permanent and stationary status before you settle.
Note the same five-year figure appears in the 104-week temporary disability cap, which also runs five years from the date of injury. Different rules, same starting point — that date governs an unusual amount of your case.
Cumulative Trauma Runs on a Different Clock
For injuries that developed over time rather than in a moment, Labor Code section 5412 defines the date of injury as the date you first suffered disability and either knew, or reasonably should have known, that the disability was caused by your employment.
Both elements have to be present. Years of soreness that never caused disability, and that nobody connected to your job, don’t necessarily start the clock.
This is why workers with worn-out shoulders and backs routinely and wrongly conclude they waited too long. Their date of injury may be far more recent than they assume. It’s covered in more depth in our article on cumulative trauma claims.
The Short Deadlines Inside an Open Claim
Even with a timely claim, shorter clocks run throughout:
- 30 days to request Independent Medical Review after a utilization review denial (10 days for pharmacy formulary disputes). Covered in our article on treatment denials.
- 60 days from your permanent and stationary date for the employer to offer qualifying return-to-work — the window that determines your job displacement voucher.
- QME panel and strike deadlines, which are short and easy to miss.
- Appeal periods from a judge’s findings and award, which are measured in days.
Don’t Diagnose Your Own Deadline
The rules above are the general framework. They have exceptions, tolling provisions, and interactions that turn on facts specific to your case — whether the employer gave required notices, whether benefits were furnished and when, whether your injury is specific or cumulative, whether you’re a public safety employee with different provisions.
The two failure modes are equally expensive:
- Assuming you have time when the clock has been running from a date you weren’t tracking.
- Assuming you’re too late and never asking — which is more common, and worse, because it forecloses a claim that was actually viable.
If you think you might be out of time, that’s a reason to make a phone call, not a reason to skip it.
Frequently Asked Questions
How long do I have to report a work injury?
As soon as possible; California generally requires notice within 30 days. Report in writing and keep a copy.
What’s the filing deadline?
Generally one year, running from whichever gives the longest period: date of injury, last indemnity payment, or last furnishing of medical benefits.
Can I reopen a closed case?
Generally within five years of the date of injury for new and further disability, if you settled by Stipulations. A Compromise and Release ordinarily closes it for good.
My benefits stopped six months ago. Am I too late?
Not necessarily — but the clock is running from that last payment. This is the situation to call about today rather than next month.
What if my employer never gave me a claim form?
Employers have obligations to provide the DWC-1 after learning of an injury, and failures can matter. Document what happened and get advice.
Check Your Dates With Someone
Kim LaValley and Kyle Adamson have handled California workers’ compensation claims across Nevada County, Placer County, and the Sierra foothills for decades, including plenty of cases where the worker was sure they’d waited too long and hadn’t.
If you’re unsure where your dates stand, call 530-362-7188. It costs nothing to find out, and it costs everything to find out too late.
See also: filing a claim after an injury and how to file in California.
This article is general information about California workers’ compensation law and is not legal advice. Limitations periods are subject to exceptions and tolling and depend on the specific facts of your claim. Do not rely on this article to calculate your own deadline — speak with a workers’ compensation attorney. Authoritative source material: California Division of Workers’ Compensation; California Labor Code §§ 5400, 5405, 5410, 5412.
