Contractor licensing

California contractor license requirements

California requires a license from the Contractors State License Board (CSLB) for any job of $1,000 or more, and for smaller jobs that need a permit or use any workers.

A contractor and plan reviewer discuss drawings and permit paperwork across an office desk.
Keep plans, permit requirements and approvals together when preparing construction work. AI-generated illustration.

In California you need a Contractors State License Board (CSLB) license for any construction job priced at $1,000 or more in labor and materials. Since January 1, 2025, under AB 2622, that minor work exemption rose from $500 to $1,000, but it comes with a catch: if the job needs a permit of any kind, or the unlicensed person uses even one worker, a license is required at any price. Getting licensed means proving four years of journey-level experience, passing the exams, posting a $25,000 bond, and choosing the right classification.

California contractor licensing at a glance
ItemRule
AgencyContractors State License Board (CSLB)
When a license is requiredJobs of $1,000 or more, or any job needing a permit or using workers
Main classesA General Engineering, B General Building, B-2 Residential Remodeling, C Specialty
Experience4 years journey-level or higher in the class; up to 3 years credit for education or apprenticeship
Application fee$450 (exam or waiver, one classification)
Initial license fee$200 sole owner, $350 non-sole owner
Contractor bond$25,000 (plus $25,000 bond of qualifying individual where required)
LLC extras$1 million liability insurance minimum and $100,000 employee/worker bond
FingerprintsLive Scan; $32 DOJ and $17 FBI processing fees plus site fee
Workers' comp for all licenseesDelayed to January 1, 2028; already required for C-8, C-20, C-22, C-39, and D-49
LookupCSLB Check a License

Pick the right classification

CSLB issues A (General Engineering), B (General Building), B-2 (Residential Remodeling), and more than 40 C specialty classes, from C-10 Electrical to C-39 Roofing to C-61 Limited Specialty. Choose carefully, because the B license has rules that trip up new GCs.

  • B General Building: the work must involve at least two unrelated building trades. A B contractor can take a framing or carpentry contract alone, but framing and carpentry do not count toward the two trades. A B contractor cannot take a prime contract or subcontract for a single other trade unless it holds that C license or subs it out. Fire protection (C-16) and well drilling (C-57) always need the specialty license or a licensed sub.
  • B-2 Residential Remodeling: improvements to existing residential wood-frame structures, with at least three unrelated trades per contract. No structural changes to load-bearing parts like foundations or load-bearing walls, and new or substantially altered electrical, plumbing, or mechanical systems must go to a licensed specialty contractor.
  • C specialty: one trade, one license. A tile setter on a $45,000 commercial job needs a C-54 (Ceramic and Mosaic Tile), not a B.

Experience and education credit

The person who qualifies the license needs at least four years of experience in the classification at a journey level or as a foreman, supervising employee, contractor, or owner-builder. Up to three years can come from education or training, but at least one year must be practical experience. Examples from CSLB: an associate degree in building or construction management counts for up to 1.5 years, certain four-year degrees for up to 2 years, and a completed apprenticeship or a directly related four-year degree for up to 3 years. Everything you claim must be backed by documentation CSLB accepts.

Fees, exams, and fingerprints

The original application costs $450 for one classification, whether you test or qualify for a waiver. Once approved, you pay the initial license fee: $200 for a sole owner or $350 for any other entity. Adding a classification later is $230. Every applicant does Live Scan fingerprinting, with a $32 Department of Justice fee and $17 FBI fee on top of whatever the Live Scan site charges. Most applicants sit for the CSLB written examination in their classification. The same $450 fee applies when CSLB grants an exam waiver instead.

At renewal time, a timely active renewal is $450 for a sole owner and $700 for other entities, with higher amounts for C-10 electrical and late renewals. Budget for it the way you budget for an insurance renewal, because a delinquent renewal costs 50 percent more.

Bonds, insurance, and LLC rules

Since January 1, 2023 (SB 607), the contractor license bond and the bond of qualifying individual are each $25,000. A disciplinary bond, when ordered, is at least $25,000 and up to ten times the contractor bond. LLCs face more: a $100,000 employee/worker bond that protects workers from unpaid wages and benefits (not required for inactive licenses), and liability insurance with a cumulative limit of at least $1 million for five or fewer personnel of record, plus $100,000 for each additional person, capped at $5 million. The policy must come from a California-licensed or eligible surplus lines insurer.

Workers' compensation is changing. SB 216 originally required every licensee to carry it starting January 1, 2026, but SB 1455 (2024) pushed that to January 1, 2028 and reinstated the exemption for licensees with no employees in the meantime. Concrete (C-8), HVAC (C-20), asbestos abatement (C-22), roofing (C-39), and tree service (D-49) must already carry it regardless of employees. Any contractor with employees must have coverage now. See workers' compensation for contractors for how classification codes drive the premium.

Check a license before you hire

CSLB's Check a License tool searches by license number, business name, or personnel name, and also covers Home Improvement Salesperson registrations. Look at the classification, bond, and workers' comp status, not just whether the license is active. A GC who signs a C-36 plumbing sub whose workers' comp exemption is on file but who shows up with a crew of four has a problem. Track it in your subcontractor insurance certificate process.

Licensing ties into your payment rights. Read the California mechanics lien guide and the California prompt payment and retainage rules, and if you bid public work, the California prevailing wage guide. Smart Business Automator keeps each sub's CSLB number, classification, bond, and insurance expiration on the job so you catch a lapse before you cut a check.

Frequently asked questions

What is the dollar limit for work without a California contractor license?

Under $1,000 in total labor and materials, effective January 1, 2025. Even below that, a license is required if the job needs any permit or the person uses workers.

How much does a California contractor license cost?

The application fee is $450 for one classification, and the initial license fee is $200 for a sole owner or $350 for other entities. Add Live Scan fingerprinting ($32 DOJ, $17 FBI, plus the site fee) and the $25,000 bond premium.

Can a B general contractor do a single-trade job?

Only framing or carpentry. Otherwise a B contractor needs at least two unrelated trades on the contract, or must hold the right C license, or subcontract the work to a licensed specialty contractor.

Do all California contractors need workers' compensation?

Anyone with employees does. The rule requiring every licensee to carry it was delayed to January 1, 2028. Concrete, HVAC, asbestos abatement, roofing, and tree service licensees must carry it now even without employees.

How do I look up a California contractor license?

Use CSLB's Check a License tool at cslb.ca.gov. You can search by license number, business name, or personnel name and see classifications, bond, and workers' compensation status.

Sources

  1. CSLB: List of All CSLB Fees
  2. CSLB: Qualifying Experience for the Examination
  3. CSLB: Bond Requirements
  4. CSLB: Licenses for Limited Liability Companies
  5. CSLB: License Requirement for Minor Work Increases from $500 to $1,000 (CSLB #24-07)
  6. CSLB: Workers' Compensation Stakeholder Meeting Packet, November 2024
  7. CSLB: Licensing Classifications
  8. CSLB: B General Building Contractor classification
  9. CSLB: B-2 Residential Remodeling Contractor classification
  10. CSLB: Check a License

Laws and rates change. Confirm current requirements with the state agency before you bid, file, or pay. This page is general information, not legal advice.

Written and edited by

Maurice Francois writes and edits construction operations guides for Smart Business Automator. More from Maurice on the Scaling Legends podcast.

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