California Workers' Comp Exemption

A sole proprietor with no employees is not required to carry coverage on themselves under Labor Code §3700, which ties the mandatory-coverage requirement to having one or more employees. Voluntary coverage is available but must be explicitly stated in the policy or added by endorsement — it is not automatic. The major exception: sole proprietors holding certain CSLB contractor license classifications must carry workers' comp regardless of whether they have any employees at all. Originally this applied only to C-39 (Roofing) contractors; under SB 216 it expanded, effective July 1, 2023, to also cover C-8 (Concrete), C-20 (HVAC), C-22 (Asbestos Abatement), and D-49 (Tree Service). A broader expansion originally set to sweep in all remaining CSLB classifications on January 1, 2026 has been delayed to January 1, 2028 by SB 1455 — so today only those five named classifications are locked into mandatory coverage regardless of employee count.

Managing members of an LLC may execute a written waiver of coverage, similar to the mechanism available to general partners, under Labor Code §3352(a)(17). The waiver is filed directly with the business's insurance carrier — not a state agency — and is effective on the date the carrier receives or accepts it, remaining in effect until the member files a written withdrawal. Working members who take wages but do not manage the LLC are more likely to be treated as ordinary employees by default under California's broad statutory definition of "employee."

California's default is inclusion, not exclusion: Labor Code §3357 creates a rebuttable presumption that anyone rendering service for a business is an employee, and officers/directors who render actual service for pay must be covered by default under §3351(c). To waive coverage, an officer must meet both parts of a two-part test under Labor Code §3352(a)(16)(A)(i): an ownership test (own at least 10% of the corporation's issued and outstanding stock, or at least 1% if a qualifying relative owns 10% or more) and a health-coverage test (be covered by a health insurance policy or health care service plan). The waiver is written, sworn, and filed with the insurance carrier — not the state — and takes effect on the date the carrier accepts it (it can be backdated up to 15 days with the carrier's consent). We found no statutory cap on the number of officers who can be exempted; California's test is applied per individual, not as a company-wide headcount limit. Separately, a sole-shareholder corporation is outside the workers' comp system by default unless it affirmatively elects coverage under Labor Code §4151(a).

Two genuinely separate tracks exist and shouldn't be confused. (1) The Labor Code officer/partner/LLC-member waiver is private paperwork — a written, sworn waiver filed directly with the business's insurance carrier, not a state filing. (2) CSLB-licensed contractors with no employees subject to California workers' comp law can instead file a Certificate of Exemption (CSLB Form #32) with the Contractors State License Board in place of a certificate of insurance, under Business & Professions Code §7125. That certificate is voided automatically the moment the contractor hires any employee, and proof of coverage must then be submitted within 90 days. Since January 1, 2012, the CSLB exemption certificate must be recertified at every license renewal cycle, or the contractor's license will not renew.

California is the only state in our research where an officer's exemption is conditioned on maintaining personal health insurance, not just an ownership threshold — dropping that health coverage arguably breaks compliance with the waiver's own conditions. The CSLB's expanding list of "must carry regardless of employees" contractor classifications (roofing, concrete, HVAC, asbestos abatement, tree service, with a broader expansion delayed to 2028) is also distinctive; if you hold one of those licenses, the general sole-proprietor exclusion does not apply to you.