Does your contractor license require workers' comp? (C-8, C-20, C-22, C-39, C-61/D-49)
Workers' compensation is the quiet killer of contractor licenses. Most contractors assume that "no employees" means "no comp required." For several common classifications, that assumption is wrong — and it's the kind of wrong that suspends a license.
The general rule
If you have employees, you must carry workers' compensation insurance. If you genuinely have no employees, you can usually file a Certificate of Exemption with CSLB stating so. For most classifications, that exemption is legitimate.
The exception that catches people
For a specific set of classifications, workers' comp is required even if you have no employees at all. There is no exemption available. These are:
- C-8 — Concrete
- C-20 — Warm-air heating, ventilating, and air-conditioning (HVAC)
- C-22 — Asbestos abatement
- C-39 — Roofing
- C-61 / D-49 — Tree service
If you hold one of these, "I work alone" does not get you out of carrying comp. CSLB expects a policy on file, and the license depends on it.
Why these trades?
These classifications carry higher injury risk, so California requires coverage regardless of headcount. The list is set by regulation — if you hold one of these codes, plan on carrying comp for as long as you hold the license.
What a comp problem does to your license
Workers' comp is one of the four independent things that can block a renewal (along with the application, the bond, and entity standing). It can hurt you two ways:
- At renewal — if comp is required and there's no policy on file, your renewal can be held up until you fix it.
- Mid-cycle — if your policy lapses or is cancelled while you're licensed, CSLB can suspend the license between renewals, with no warning from the state.
A subtle trap: if your comp policy expires before your license does, it can quietly lapse months before you'd ever think about renewal. Watching only your license date misses this entirely.
The 2024 payroll-classification rule
One more thing to have ready: since July 1, 2024, contractors with a workers' comp certificate on file must list their three highest-payroll classification codes on renewal. Know your codes before you file so the renewal isn't returned for correction.
How to stay ahead of it
Comp status changes on the insurer's schedule, not yours. The fix is to watch the policy the same way you watch the renewal date. Contractor License Vault monitors your workers' comp status daily and flags it the moment it's missing, expiring, or lapsed — including when comp is required for your classification but none is on file. You find out while there's still time to call your carrier, not after the license is already suspended.
Frequently asked questions
Do I need workers' comp if I have no employees?
Usually you can file an exemption if you truly have no employees — but not for certain classifications. C-8, C-20, C-22, C-39, and C-61/D-49 require workers' comp coverage even with no employees.
What happens to my license if my workers' comp lapses?
If comp is required for your license and the policy lapses without a replacement on file, CSLB can suspend the license. A comp gap is one of the most common reasons a renewal stalls.
Why does my comp expiration matter if it's after my license date?
If your comp expires before your license does, it can lapse mid-cycle and put your license at risk between renewals. It's worth watching the comp date independently, not just the license date.