How do I register my business as a contractor in California?

Answered by Netanel Presman, General Contractor (CSLB #1105249) · Updated

Short answer

In California, contractors must pass the CSLB exam, register a business entity (sole proprietor, LLC, or corporation), obtain a $25,000 contractor's bond, demonstrate at least 4 years of qualifying journeyman-level experience, pass CSLB's Law and Trade exams, provide fingerprints for background check, and pay licensing fees. The process typically takes 3-6 months from application to active license. Applications are filed at cslb.ca.gov.

In detail

California's Contractors State License Board requires a rigorous path to licensure. The process is designed to screen out unqualified contractors and maintain industry standards.

Qualifications required:

  1. At least 18 years old.
  2. Valid Social Security Number or Individual Taxpayer Identification.
  3. At least 4 years of journeyman-level experience in the trade within the past 10 years.
  4. No disqualifying criminal history (certain felonies can bar licensure).
  5. Pass the Law and Trade Exams.
  6. Provide a Contractor's Bond ($25,000 as of 2023).
  7. Register a business entity or operate as sole proprietor.
  8. Workers' comp coverage for any employees (or sole-proprietor exemption).

Step-by-step process:

  1. Determine the license classification — A (general engineering), B (general building), B-2 (residential remodeling), or a C-specialty (C-10 electrical, C-36 plumbing, etc.). B-2 (created 2018) is the residential-focused class.
  1. Apply for Original License (Form 7965) — file online at cslb.ca.gov with application fee ($450 as of 2026).
  1. Experience verification — CSLB reviews claimed experience. Applicants must document 4 years of full-time journeyman-level work in the chosen classification.

4. Exams: - Law Exam — 100 multiple-choice questions on California contractor law. 75% required to pass. - Trade Exam — 100 questions on the specific classification's trade knowledge. 75% required to pass. - Exams scheduled after application approval. Both must be passed. - Retake policies: 18 months, up to 3 attempts per year.

  1. Background check — fingerprints submitted through Live Scan. CSLB reviews criminal history.

6. Bonding and insurance — after passing exams, submit: - Contractor's Bond ($25,000) from authorized surety. - Workers' compensation certificate or sole-proprietor exemption. - Liability insurance certificate (required for all classes except those exempted).

  1. Pay issuance fees — initial license fee ($200 as of 2026).
  1. License issued — active license status; license number appears in CSLB public database.

Total timeline: 3-6 months typical.

Total cost breakdown (2026):

  • Application fee: $450.
  • Exam fee: $100 (if taken more than once, additional).
  • Fingerprinting: $50-$75.
  • Bond premium: $100-$500/year depending on credit.
  • Liability insurance: $1,000-$5,000/year.
  • Workers' comp: varies by payroll.
  • Initial license fee: $200.
  • Total first-year out-of-pocket: $2,000-$7,000 depending on insurance.

Ongoing requirements:

  1. License renewal — every 2 years, $450 fee.
  2. Bond renewal — annually.
  3. Insurance maintenance — continuous.
  4. CE (continuing education) — not required in California (some states require it).

Business entity considerations:

  • Sole proprietor — simplest, no entity filing. All liability is personal.
  • LLC — requires Secretary of State filing, $70 fee plus annual $800 minimum franchise tax. Limited liability protection.
  • Corporation — most formal. S-corp election common for tax benefits.

Residential vs commercial:

  • B-2 (residential remodeling) — focused on residential work. Doesn't allow commercial.
  • B (general building) — broader; allows both residential and commercial.
  • A (general engineering) — specialty; roads, bridges, infrastructure.

Operating under license:

  • License must be posted at business location.
  • License number must appear on all advertising, business cards, trucks.
  • Written contracts over $500 required.
  • Deposit cap of 10% or $1,000 (whichever less) on residential.

RMO / RME (Responsible Managing Officer / Employee):

  • Corporations/LLCs must have a qualifying RMO or RME who personally meets qualifications.
  • One person can only qualify for one entity at a time (with rare exceptions).
  • RMO/RME must oversee the licensed contracting operations.

AskBaily's LA contractor pool includes B and B-2 licensed contractors with in-house RMO oversight. See /for-pros for how AskBaily supports new contractor businesses entering the California market.

Sources

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