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✦ Certified Specialist in Workers’ Compensation Law, certified by the State Bar of California, Board of Legal Specialization ✦
By Eman Yazdchi, Esq. · Certified Specialist in Workers' Compensation Law, State Bar of California Board of Legal Specialization · Cal Bar #285231
The failure to secure the payment of compensation as required by this article by one who knew, or because of his or her knowledge or experience should be reasonably expected to have known, of the obligation to secure the payment of compensation, is a misdemeanor punishable by imprisonment in the county jail for up to one year, or by a fine of up to double the amount of premium, as determined by the court, that would otherwise have been due to secure the payment of compensation during the time compensation was not secured, but not less than ten thousand dollars ($10,000), or by both that imprisonment and fine.
Section 3700.5 makes operating without workers' compensation insurance a criminal misdemeanor, and the civil consequence is personal liability by the employer officer for every benefit owed.
Section 3700.5 is California's rule making it a criminal misdemeanor for an employer to operate without workers' compensation insurance, punishable by a fine up to ten thousand dollars per day or imprisonment. The criminal exposure makes uninsured-employer cases different. Certified Specialist Eman Yazdchi (California Board of Legal Specialization, State Bar of California) files against the Uninsured Employers Benefit Trust Fund whenever the employer lacked coverage.
California Labor Code §3700.5 makes a California employer's failure to carry workers' compensation insurance, the California Labor Code §3700, California's mandate that every California employer secure workers' comp coverage, violation, a misdemeanor offense. Under §3700.5, the California employer who fails to secure the payment of workers' compensation benefits as §3700 requires is criminally exposed to county-jail time and fines, plus separate civil penalties calculated on a per-employee basis. The §3700.5 California rule is the criminal counterpart to the California Labor Code §3700 insurance mandate; the legislature backed up the comp coverage requirement with criminal liability to deter California employers from operating uninsured. The civil exposure operates in parallel: §3706, §3710, §3712, §3715, and §3717 build out the uninsured-employer civil suit, UEBTF claim, and joinder mechanics that run alongside the §3700.5 criminal prosecution.
The criminal fine runs up to ten thousand dollars per day the employer operated without coverage, with imprisonment available as an alternative penalty for willful violations.
Under California Labor Code §3700.5, a California employer who violates California Labor Code §3700 is guilty of a misdemeanor punishable by imprisonment in county jail and by a fine. The §3700.5 California criminal exposure attaches to the responsible corporate officers and operators, not just the corporate entity. The California district attorney has prosecutorial authority over §3700.5 cases, and the Department of Industrial Relations refers California uninsured-employer cases for prosecution. The §3700.5 California criminal framework runs in parallel with the §3700.5 California civil-penalty framework, both apply to the same uninsured California employer at once.
The civil remedy runs through the Uninsured Employers Benefit Trust Fund, which pays the worker's benefits and then pursues reimbursement from the uninsured employer through enforcement.
Under California Labor Code §3700.5, the California civil penalty is calculated per employee on the date of the violation. When an injury has occurred during the uninsured period, the §3700.5 California civil penalty is $10,000 per employee on the date of the violation. When no injury has occurred but the California employer was nonetheless uninsured, the §3700.5 California civil penalty is $2,000 per employee on the date of the violation, subject to an aggregate cap. The §3700.5 California per-employee calculation is what makes the civil exposure escalate sharply for California employers with sizable workforces.
Individual officers and directors can be held personally liable for the employer's failure to insure, piercing the corporate-structure protection the employer expected to have.
Under California Labor Code §3700.5 (criminal + civil penalties) and California Labor Code §3706 (civil tort liability to the worker), the California uninsured employer faces three simultaneous layers of consequence. The §3700.5 California layer is the misdemeanor + per-employee civil penalty enforced by the state. The California Labor Code §3706 California layer is the injured worker's right to sue the uninsured employer in civil court outside the California Labor Code §3601 exclusive-remedy bar, with a statutory presumption of employer negligence. The Uninsured Employers Benefits Trust Fund pays the worker's comp benefits and seeks reimbursement from the uninsured California employer as the fourth layer.
The criminal prosecution and civil UEBTF claim can proceed simultaneously, and the worker's recovery is not delayed while the employer's criminal case is resolved.
Under California Labor Code §3700.5, California enforcement typically begins with a stop-work order from the Department of Industrial Relations when a worksite inspection or injury claim reveals the California employer was uninsured. The §3700.5 California civil penalties are then assessed administratively, with a hearing right. The §3700.5 California criminal referral goes to the district attorney's office for the county where the violation occurred. Many California §3700.5 cases resolve through stipulated penalty assessments and resumption of coverage; serious or repeat California offenders face active criminal prosecution and substantial civil exposure.
Related on yazdchilaw.com: California workers' compensation lawyer pillar · California Labor Code §5400.30 explained · California Labor Code §3700.6 explained · what to do if you can't go back to work after a workers' comp injury.
Injured at work? Call (661) 273-1780
Tap to call →Last reviewed by Eman Yazdchi, Esq., June 2026.
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