Who can file a workers' compensation exemption with CSLB, who cannot, what happens when coverage lapses, and the 90 day rule after your first hire.
California requires employers to carry workers' compensation insurance "even if they have only one employee," and CSLB enforces it through your license. A lapse suspends the license. A false exemption can put it at risk. This guide explains who can file an exemption, who cannot, and what to do when you hire your first employee, using the CSLB workers' compensation page as the source.
For the full licensing picture, start with the California contractor license guide.
At a glance
- Active, reactivating and applicant licensees must provide a certificate of insurance, a Certification of Self-Insurance, or an exemption.
- A licensee with no employees may file a signed exemption.
- The exemption is not available if the license is qualified by an RME, or if you hold a C-8, C-20, C-22, C-39 or C-61/D-49 classification.
- Coverage "must be continuous." A lapse leads to suspension.
- If you hire an employee, send proof of coverage to CSLB within 90 days of the hire.
Source: CSLB workers' compensation requirements.
Who needs workers' compensation in California
Every contractor with an active license, every licensee reactivating an inactive license, and every applicant for an active license must do one of three things:
- File a valid certificate of workers' compensation insurance.
- File a valid Certification of Self-Insurance.
- File an exemption certifying that you have no employees.
The third option is narrow. It is not a way around coverage for a growing business.
Who can file an exemption, and who cannot
| Situation | Exemption allowed? | What CSLB says |
|---|---|---|
| Owner with no employees, no RME | Yes | Sign a certification of no employees at this time |
| Licensee with employees under California law | No | Must carry coverage |
| License qualified by an RME | No | Must carry coverage |
| C-8, C-20, C-22, C-39, C-61/D-49 | No | Must carry coverage even with no employees |
The classification rule surprises people. A solo concrete (C-8), warm-air heating and air-conditioning (C-20), lathing and plastering (C-22), roofing (C-39) or limited specialty (C-61/D-49) licensee cannot rely on the "no employees" exemption.
Out-of-state licensees in those classifications, or with an RME, whose employees do not live in California, use form 13L-50 with a certificate from their home-state carrier.
Why an RME changes the answer
Under California law the person who qualifies a license can be an RMO or an RME. An RME is an employee of the company, so a license qualified by an RME has at least one person on the payroll. That is why the no-employee exemption is closed to those licenses.
If you are placing a qualifier, treat workers' compensation as part of the setup, not an afterthought. A qualifying agent is placed as a full-time W-2 employee, so the company carries coverage for that person like any other employee. Read what a qualifying agent is, the California RME guide and the explanation of the RMO and RME roles.
What happens if you hire after filing an exemption
The exemption certifies that you have no employees at this time. If you later hire someone covered by California workers' compensation law, the exemption stops being valid. CSLB must receive proof of coverage within 90 days of the hire.
- Buy a workers' compensation policy before the first day of paid work.
- Have your insurer file the certificate with CSLB electronically.
- Confirm the license record shows the new coverage.
- Keep your policy dates on a calendar so the policy never lapses.
What happens when coverage lapses
CSLB states that "Failure to maintain workers' compensation insurance coverage will result in the license being suspended." Work during a suspension is treated as unlicensed work, and CSLB can take disciplinary action. The suspension is lifted once acceptable proof is received and processed at CSLB headquarters.
Unlicensed work now costs more. SB 779 took effect July 1, 2026 and set the minimum civil penalty for unlicensed activity at $1,500, according to CSLB. See California SB 779 and the unlicensed contractor penalty increase.
How to file proof of coverage
| Method | How it works | Watch for |
|---|---|---|
| Electronic | Your insurer files through CSLB's online form; the license record updates automatically | Only insurers licensed to write workers' comp in California may file |
| Paper certificate sent with CSLB's instruction guide | Errors delay processing and can break license standing |
Every certificate needs the license number (or application number), CSLB as certificate holder, the business name, policy number, effective and expiration dates, and an authorized insurer signature. The common manual errors are an incorrect business or insurer name, a wrong policy number, leaving out CSLB as certificate holder, and an invalid signature. Under Business and Professions Code 7125.6, licensees also list up to three workers' compensation classification codes.
A simple way to decide: coverage or exemption
Use this order of questions before you file anything.
- Do you hold C-8, C-20, C-22, C-39 or C-61/D-49? If yes, carry coverage or self-insurance.
- Is your license qualified by an RME? If yes, carry coverage.
- Do you employ anyone covered by California workers' compensation law? If yes, carry coverage.
- If you answered no to all three, you may file the signed exemption, and you must update CSLB when that changes.
The exemption is a statement about your business on the day you sign it. It does not follow you into the next hire.
Mistakes that cost licensees their standing
| Mistake | Result |
|---|---|
| Letting a policy lapse between renewal dates | Suspension, and work in that window counts as unlicensed |
| Wrong business name on the certificate | Processing delay and a possible break in license standing |
| Leaving CSLB off as certificate holder | Certificate rejected |
| Hiring the first employee under an old exemption | Exemption invalid; proof due within 90 days |
| Mailing a paper certificate near a deadline | Errors delay processing |
CSLB processes a certificate as of the date it receives a correct one. That is why electronic filing by the insurer is usually the safer route: the license record updates automatically.
What CSLB's page does not say
CSLB's workers' compensation page describes the discipline that follows work during a suspension. It does not list a specific penalty for filing a false or improper exemption, and it gives no fee or dollar amounts. SB 291 changes the picture by raising penalties and requiring a verification process, so do not assume the old risk level still applies. When in doubt, ask your insurer or CSLB before you sign.
Applicants and reactivations
The rule is not limited to licenses already in good standing. Applicants for an active license and licensees reactivating an inactive license must also show coverage, self-insurance or an exemption. If you are applying with a qualifier, confirm the policy covers the employee who will qualify the license before you submit. The guide to qualifying agents in California walks through the structure.
SB 291 and the push to verify exemptions
SB 291 took effect January 1, 2026. It significantly raised penalties for workers' compensation insurance violations.
It also directs CSLB to create a process to verify whether a licensee is eligible for an exemption, to report to the Legislature by 2027, and to publish workers' compensation enforcement data each year. The CSLB bulletin on new laws gives no dollar amounts. Trade press reports minimums of $10,000 per violation for sole owners and $20,000 for other business types, so confirm the figures in the bill text. For the rest of the 2026 package, see California contractor laws that took effect in 2026.
Frequently asked questions
Can a sole owner with no employees skip workers' compensation in California? Yes, by filing a signed exemption, unless the license is qualified by an RME or sits in C-8, C-20, C-22, C-39 or C-61/D-49.
What happens if my workers' compensation policy lapses? CSLB suspends the license. Work during the suspension counts as unlicensed work.
How long do I have to send proof after I hire someone? CSLB must receive proof of coverage within 90 days of the hire.
Who can file a certificate with CSLB? Only insurers licensed to write workers' compensation in California may issue and file certificates.
Does an RME count as an employee? Yes. An RME is an employee of the licensed company, which is why a license qualified by an RME cannot use the no-employee exemption. A qualifying agent is placed as a W-2 employee for the same reason.
How much does workers' compensation cost for a California contractor? Premiums depend on your classification codes, payroll and claims history, so ask your insurer for a quote. For help setting up a compliant qualifier, see /ConsultationPackages.
Requirements and penalty amounts change. Verify current rules with CSLB before you rely on this page. The Licensing Company's founders, Marshall Schofield and Jeremiah Jaskulski, work with contractors on California licensing every day. You can hire a qualifying agent or read about license law changes in 2026 by state.
Disclaimer: This article is provided for educational and informational purposes only. It does not constitute legal advice, licensing guidance, or an offer of services. Licensing requirements vary by jurisdiction. For specific compliance questions, contact The Licensing Company for a confidential consultation.