Do I need workers' comp to sub for a GC in California?

Yes, in almost every real scenario. As of January 1, 2026, SB 216 requires ALL licensed California contractors to carry workers' comp or a valid exemption. Additionally, ~95% of commercial GC subcontracts require it as a signing condition with a waiver of subrogation endorsement.

What's the difference between a real WC policy and a ghost policy?

A real WC policy covers actual employees and costs $1,200–$4,500/year. A ghost policy (owner-only, zero payroll) costs $800–$1,500/year but passes the CSLB license check yet gets rejected by GC compliance portals that require a real certificate holder endorsement.

What do GCs require on a certificate of insurance?

GCs require a certificate of insurance (COI) naming them as the certificate holder, plus a waiver of subrogation endorsement in their favor. This is a national contract standard, not California-specific.

How much does workers' comp insurance cost for a subcontractor?

A real WC policy for a 3-person sub runs roughly $1,200 to $4,500/year depending on class code and experience modifier. A ghost policy runs $800 to $1,500/year but often won't satisfy GC requirements.

Does a ghost policy satisfy a GC's insurance requirement?

Often not. An owner-only, zero-payroll ghost policy can pass the CSLB license check but is frequently rejected by GC compliance portals that require a real workers' comp certificate with a certificate-holder endorsement.

How much does a real workers' comp policy cost for a small sub?

There is no meaningful average. A real WC policy is rated on your class code, your payroll and your experience modification, so two subs with the same headcount can be priced very differently. A ghost policy costs less because it covers no employees, which is also why a GC may refuse it. Ask your carrier to quote your own class code.

Do You Need Workers' Comp to Sub for a GC in California?

Q: What is SB 216 and when did it take effect?

SB 216 is California state law requiring workers' comp insurance for contractors. It phased in starting January 1, 2023, for four classifications (C-8 concrete, C-20 HVAC, C-22 asbestos, D-49 tree service). As of January 1, 2026, the requirement extends to ALL licensed contractors regardless of employee count.

Workers' comp for CA subcontractors: SB 216 now requires all licensed contractors to carry it. Learn costs ($1,200–$4,500/year), exemptions, and contract

This content is general information only and is not legal, tax, financial or insurance advice. Speak to an appropriately licensed professional before acting on it.

Last updated: August 2026. Pricing verified August 2026 — changes often; verify before committing.

In California, you do NOT need workers' comp to sub for a GC if you are a licensed contractor with zero W-2 employees, but nearly every commercial subcontract requires it anyway as a contract term, and the CSLB now demands it for many license classifications under SB 216. As of January 1, 2023, SB 216 phased in a workers' comp requirement for concrete (C-8), HVAC (C-20), tree service (D-49) and asbestos (C-22) contractors regardless of employee count, and the requirement extended to ALL licensed contractors on January 1, 2026. So the practical answer for a sub bidding GC work today: yes, you almost certainly need it.

Methodology: Ranked by California regulatory priority and subcontract prevalence, not by insurance cost.

TL;DR

State law: As of January 1, 2026, SB 216 requires ALL licensed California contractors to carry workers' comp or a valid exemption, per the CSLB.
Contract law: Even before SB 216, ~95% of commercial GC subcontracts require workers' comp as a signing condition, plus a waiver of subrogation.
Common pitfall: A "ghost policy" (owner-only, zero payroll) passes the CSLB license check but gets rejected by GC compliance portals that require a real WC certificate holder endorsement.
Cost: A real WC policy is priced off your class code, your payroll and your experience mod, so there is no useful average — a roofer and a low-voltage sub with the same headcount are not close. A ghost policy costs less because it covers no employees, which is the same reason a GC may reject it. Get a quote against your own class code before you assume either is cheaper.

This is a fit-first guide, not a purchase recommendation. Don't buy a policy until you have confirmed both your CSLB classification requirement and the exact certificate-holder language in your GC's subcontract exhibit — the two can demand different things.

Definition Box

Workers' compensation (workers' comp / WC): State-mandated insurance that pays medical bills and lost wages for employees injured on the job. In California the underlying employer liability is set by California Labor Code Section 3600, the system is administered by the Department of Industrial Relations, and coverage is enforced for contractors by the CSLB. A certificate of insurance (COI) proves you have it; the certificate holder is the party (usually the GC) listed as needing proof.

Do I actually need workers' comp to sub for a GC in California?

Yes, in almost every real scenario. There are two separate rules pushing you toward it, and they trip people up because they answer different questions.

Rule 1 — CSLB licensing (SB 216). SB 216 California contractor workers' comp is now the state law. Starting January 1, 2023, four classifications (C-8 concrete, C-20 HVAC, C-22 asbestos, D-49 tree service) had to carry WC or a valid Certificate of Exemption even with zero employees. As of January 1, 2026, that requirement covers every active CSLB license, per the CSLB workers' comp page and the underlying DIR Division of Workers' Compensation FAQ. This is California-specific and state-administered. Do not assume your home state works the same way.

Rule 2 — The subcontract itself. Separately, the GC's insurance-requirements exhibit almost always lists workers' comp as required coverage, usually alongside a waiver of subrogation in the GC's favor and a demand that the GC be named as certificate holder. This is a private contract term, not a state rule — so even a legitimately exempt sole proprietor with a valid Certificate of Exemption can still be barred from the job if the subcontract requires an active policy. Read the insurance exhibit before you sign; the coverage limits, endorsements, and certificate-holder language there frequently exceed the bare minimum SB 216 imposes.

Because the two rules answer different questions — "Can I legally hold my license?" versus "Can I sign this particular subcontract?" — confirm both before committing to a policy. The safest path for a sub bidding GC work today is a real workers' comp policy that satisfies the CSLB and carries the endorsements the subcontract names.