To work as a general contractor in California, you need a Class B General Building Contractor license issued by the Contractors State License Board (CSLB). The general contractor license requirements in California are: be at least 18 years old, document four years of journey-level experience within the past ten, pass two proctored exams plus an asbestos open-book exam, clear a fingerprint background check, and file a $25,000 surety bond along with workers’ compensation coverage or a valid exemption. A Class B license covers projects involving two or more unrelated building trades, from framing and concrete to plumbing and electrical.
Who Qualifies
You must be 18 or older. Beyond that, the core requirement is four years of journey-level experience gained within the ten years immediately before you file.1Legal Information Institute. California Code of Regulations Title 16, Section 825 Journey-level means you can perform the work of your trade without supervision. That experience can come from time as a journeyman, foreperson, supervising employee, or contractor.
For a Class B license specifically, the CSLB expects hands-on skill in framing and rough carpentry, plus experience in at least two other unrelated trades such as concrete, electrical, or plumbing.2Contractors State License Board. B General Building Contractor Fast Facts
Education can shorten the experience clock, but not eliminate it. An accredited construction program or approved apprenticeship can count for up to three years of the four-year total.1Legal Information Institute. California Code of Regulations Title 16, Section 825 A bachelor’s degree in construction management is one common route to that three-year credit, though the CSLB evaluates each case on its own. You still need a full year of actual on-the-job experience regardless of what schooling you bring.
The Application and Its Fees
You start with the Application for Original Contractor License, Form 13A-1, from the CSLB website.3Contractors State License Board. Application for Original Contractor License Form 13A-1 It asks for your business name and address, Social Security Number or ITIN, and the license classification you’re seeking.
The Certification of Work Experience section is where most applications go wrong. Someone with direct knowledge of your work, such as a licensed employer, fellow journeyman, or supervising contractor, has to complete and sign it, and the description has to be specific: the exact duties you performed, the trades involved, and how your time was divided across tasks. Vague answers are the leading cause of returned applications.
Fees stack up in stages. The application itself is $450 for a single classification. Once you pass your exams and the CSLB is ready to issue the license, you pay an initial license fee of $200 as a sole owner, or $350 for other business structures.4Contractors State License Board. List of All CSLB Fees Fingerprinting, exam fees, and your bond premium are separate.
Exams You Have to Pass
Once the CSLB accepts your application, you sit for two proctored exams at a designated testing center. The Law and Business exam covers contract management, licensing rules, employment law, and running a construction business. The B-General Building trade exam covers construction practices, project planning, and jobsite safety.
If you fail either one, you can retake it after 21 days, as long as you’re still within 18 months of the date your application was accepted. Let that 18-month window close and you start the whole application over.5Contractors State License Board. Examination FAQ
Every applicant also completes an asbestos open-book exam, taken at home or online, before the license issues. It covers the risks and rules around asbestos-containing materials on jobsites. Passing it doesn’t authorize you to do abatement work; it just confirms you can recognize the hazard.6Contractors State License Board. Asbestos Open Book Examination
Bond, Workers’ Comp, and Insurance Disclosure
Before the license activates, you file a $25,000 contractor’s bond with the CSLB. The bond protects consumers and employees, not you. You buy it from a surety company authorized in California and pay an annual premium rather than the full face amount.7Contractors State License Board. Bond Requirements
A separate $25,000 Bond of Qualifying Individual is required if your license is qualified by a Responsible Managing Employee, or by a Responsible Managing Officer who does not own at least 10 percent of the corporation’s voting stock.7Contractors State License Board. Bond Requirements
If your business is an LLC, expect an added $100,000 surety bond on top of the standard $25,000. That extra bond exists to cover unpaid employee wages and fringe benefits.8Contractors State License Board. CSLB LLC Information
Any contractor with employees must carry workers’ compensation insurance and file a valid certificate with the CSLB. Without employees, you can file an Exemption from Workers’ Compensation form instead. The exemption isn’t available, though, if your license is qualified by an RME, or if you hold certain specialty classifications such as C-8 Concrete, C-20 HVAC, C-22 Asbestos Abatement, C-39 Roofing, or C-61/D-49 Tree Service. Those trades require coverage regardless of headcount.9Contractors State License Board. Workers Compensation If you file an exemption and later hire someone, you have 90 days from the hire date to submit proof of coverage.
California doesn’t require general liability insurance as a condition of licensure, but for home improvement contracts you must disclose your coverage status in writing. The contract has to state whether you carry general liability coverage, are self-insured, or have none, and if you’re insured, you provide the carrier’s name and phone number so the homeowner can verify it.10California Legislative Information. California Business and Professions Code 7159
Background Check and License Issuance
Once the CSLB accepts your application as complete, everyone listed on it receives a Request for Live Scan Service form by mail. You bring that form to an authorized Live Scan location, where your fingerprints are sent electronically to the California Department of Justice and the FBI.11Contractors State License Board. Get Fingerprinted Live Scan
A criminal record isn’t an automatic bar. The CSLB looks hardest at convictions involving dishonesty, fraud, theft, physical violence, or repeated disregard for public safety, along with prior violations of contractor licensing law itself. It weighs whether the conviction is substantially related to the work a contractor does before deciding.12Contractors State License Board. Substantial Relationship Criteria
After the background check clears and your exams are passed, you submit your bond, workers’ comp certificate or exemption, and asbestos exam. The CSLB then issues the license. Processing times shift, and the board publishes the date of applications currently being worked; as of early 2026, the original applications unit was on submissions received roughly two weeks earlier.13Contractors State License Board. CSLB Processing Times
Reciprocity if You’re Licensed Elsewhere
California has reciprocal agreements with Arizona, Louisiana, Mississippi, Nevada, and North Carolina. Holding a qualifying license in one of those states can waive the California trade exam.14Contractors State License Board. Reciprocal Classifications List Terms vary by state: Louisiana and Mississippi applicants, for example, must have passed the NASCLA Commercial Building exam and held their license in good standing for at least five years to qualify for a B-General Building trade exam waiver. Reciprocity never covers the Law and Business exam, the bond, or the rest of the application.
Keeping the License Active
A California contractor license is valid for two years. Active renewal is $450 for a sole owner and $700 for non-sole-owner businesses. Renew after the expiration date and the fee rises by 50 percent.15Contractors State License Board. Online License Renewal
What Happens if You Work Without One
Contracting without a license is a misdemeanor. A first offense carries a fine of up to $5,000, up to six months in county jail, or both. A second offense means at least 90 days in jail and a fine of the greater of $5,000 or 20 percent of the contract price. Third and later offenses start at a $5,000 fine, up to the greater of $10,000 or 20 percent of the contract price, plus 90 days to one year in jail.
The civil exposure is harsher. Under Business and Professions Code section 7031, a property owner who hires an unlicensed contractor can sue to recover every dollar paid, even if the work was finished and flawless.16California Legislative Information. California Business and Professions Code 7031 Disgorgement is absolute. You get no credit for materials or subcontractor payments. A narrow substantial-compliance defense exists for brief, unintentional lapses by contractors otherwise qualified, but courts apply it sparingly. The claim must be filed within one year of the contractor’s last work on the project.