Subcontractor Injured on Your Job? Who Pays When They Do Not Have Workers' Comp?

Direct answer: In many cases, yes — if you hire a subcontractor who doesn't carry their own workers' comp coverage, California law can treat that sub's workers as your statutory employees for workers' comp purposes, meaning your policy (or your personal liability, if you're uninsured) may end up covering their injury.

This is one of the more expensive surprises in contracting, and it's exactly why GCs are so insistent on collecting certificates of insurance from every sub before they set foot on a job.The mechanics: California's workers' comp system generally holds the party at the top of a subcontracting chain responsible for ensuring workers' comp coverage exists somewhere in that chain. If your subcontractor doesn't carry their own workers' comp and one of their workers is injured on your job, that injured worker (or the state) can pursue coverage up the chain — potentially landing on your policy, or on you personally if you're uninsured.This is why collecting and verifying current certificates of insurance from every subcontractor, before work starts, isn't just paperwork — it's the mechanism that keeps someone else's uninsured risk off your books. A certificate that's expired, or one you never actually collected, doesn't protect you even if you assumed the sub was covered.

Official verification and coverage context

California licensing and workers' compensation requirements can change. Review the current official CSLB and California DIR guidance for the facts that apply to the business, then discuss coverage terms with a licensed broker. Related resource: contractor coverage directory.