California Contractor License Guide

Official requirements, fees, exam info, and step-by-step application process for California (CA).

📋 Last Updated March 2026 🏛️ California Contractors State License Board (CSLB)

At a Glance: California Contractor License

ItemDetails
Licensing BoardCalifornia Contractors State License Board (CSLB)
License Types
  • Class A (General Engineering)
  • Class B (General Building)
  • Class C (Specialty — 40+ classifications)
License Threshold$500 or more in combined labor and materials
Application Fee$450 application + $200 initial license fee
Exam Required✅ Yes
Exam ProviderCSLB (administered by PSI)
Exam Cost$60 per exam attempt
Experience Required4 years journey-level experience within the past 10 years
Insurance RequiredWorkers' Comp (if employees); $15,000 contractor's bond required
License RenewalBiennial; $450 renewal fee

Step-by-Step: How to Get Your California Contractor License

  1. Gain 4 years experience as a journeyman, foreman, supervisor, or contractor
  2. Submit experience verification with your application
  3. Pass the Law & Business exam AND the trade exam
  4. Post $15,000 contractor's license bond
  5. Submit fingerprints for background check
  6. Pay all fees — license issued in 4–8 weeks

Exam Requirements

Provider: CSLB (administered by PSI)

Cost: $60 per exam attempt

Topics covered: Law & Business, Trade Knowledge

Most state contractor exams test two main areas: Business & Law (contracts, lien law, workers' comp, licensing regulations) and Trade Knowledge (construction practices, building codes, safety). Prepare for both sections — even experienced contractors struggle with the Business & Law portion without dedicated study.

Study Resources

  • PSI Candidate Handbook (available on PSI website — free, covers exactly what's on the exam)
  • ICC Study Guides for code-based exams
  • Contractor's Business & Law Study Guide by Craftsman Book Company
  • Online prep courses from Contractor Exam Prep and similar providers

Insurance & Bonding Requirements

Workers' Comp (if employees); $15,000 contractor's bond required

Beyond what California requires, consider these coverage types for complete protection:

  • General Liability: Protects against third-party bodily injury and property damage claims
  • Workers' Compensation: Required if you have employees; protects against job-site injury claims
  • Commercial Auto: Your personal auto policy won't cover your work truck
  • Inland Marine (Tools & Equipment): Covers tool theft from job site or vehicle
→ Read: Complete Contractor Insurance Guide

Reciprocity

California has the following reciprocity agreements with other states:

  • Nevada (partial — exam waiver)

Important: Reciprocity agreements change over time. Always contact the California licensing board directly to confirm current reciprocity status before assuming your out-of-state license qualifies for expedited licensure.

Important Notes for California

California has the most active contractor licensing enforcement in the US. The $500 threshold is among the lowest — always be licensed. HIS registration required for home improvement sellers.

Official Resources

Always verify requirements directly with the California Contractors State License Board (CSLB). Requirements, fees, and exam procedures change frequently — this guide is updated periodically but may not reflect the most recent changes.

⚠️ Licensing requirements change frequently. Always verify current requirements with your state's official licensing board before applying. AI Disclaimer