Contractor licensing, insurance and bonding

A pass report on the CSLB exams is followed by a bond and fee letter, and the license is not issued, renewed or kept active until the bonds and insurance are on file. This lesson covers the bonds California requires of contractors, the special rules for limited liability companies, workers' compensation and the employee-versus-independent-contractor question, general liability insurance, and the payroll basics the Law and Business exam tests. Amounts and dates are from CSLB and other official sources as of November 2026; bond and insurance rules are changed by statute from time to time, so confirm them before you file.

The contractor bond

Every active California contractor license must have a contractor bond on file with CSLB. CSLB's bond requirements page sets the amount at 25,000 dollars and requires the bond before CSLB can issue an active license, reactivate an inactive license, or renew an active license. The bond must be received at CSLB headquarters within 90 days of its effective date to avoid a gap. It is a surety bond, not insurance for the contractor: it is there to compensate people damaged by the contractor's violations of the License Law, such as homeowners harmed by defective or abandoned work, workers owed wages, and suppliers in certain cases. When a surety pays a claim, it expects to be reimbursed by the contractor, and an unpaid bond claim or a canceled bond can lead to suspension.

Most contractors buy the bond from a surety company and pay an annual premium that depends on the owners' credit and history; a strong applicant might pay a small fraction of the bond amount each year. CSLB's rules also allow a cash deposit in place of a surety bond in some circumstances; check the current procedure if that is relevant.

# Annual premium for a 25,000-dollar contractor bond at a few illustrative premium rates
bond = 25_000
for credit, rate_per_1000 in [("excellent", 4.0), ("good", 8.0), ("fair", 20.0)]:
    premium = bond / 1000 * rate_per_1000
    print(f"{credit:<10} {rate_per_1000:>5.1f} per 1,000 -> {premium:>7.2f} dollars a year")

excellent    4.0 per 1,000 ->  100.00 dollars a year
good         8.0 per 1,000 ->  200.00 dollars a year
fair        20.0 per 1,000 ->  500.00 dollars a year

The rates are illustrative; actual premiums come from the surety. The point is that the premium is a small yearly cost, while the bond amount is the most the surety will pay on claims before the contractor must replace it.

The bond of qualifying individual

A second 25,000-dollar bond, the bond of qualifying individual, is required when the license is qualified by a Responsible Managing Employee, or by a Responsible Managing Officer who owns less than 10 of every 100 shares of the corporation's voting stock. An RMO who owns 10 or more of every 100 voting shares files a bond of qualifying individual exemption certification instead. Each qualifier must meet the requirement separately. The qualifier's bond exists because the law wants an extra layer of protection when the person with the expertise is not also a substantial owner of the business.

Marcus will be Capitol Valley's RMO and owns no shares, so the corporation must file a bond of qualifying individual for him in addition to the contractor bond already on file. If Elena later sells him a stake of at least 10 of every 100 voting shares, the corporation can file the exemption certification instead.

Disciplinary bonds

A contractor whose license was revoked for a License Law violation must file a disciplinary bond to have the license reinstated or reissued. CSLB's page says the Registrar sets the amount based on the seriousness of the violation, not less than 25,000 dollars and not more than ten times the contractor bond amount. The disciplinary bond is filed in addition to, not instead of, the other required bonds; it must stay on file for at least two years, and the license must remain active while it is on file.

Limited liability companies

California allows contractor licenses to be held by limited liability companies, but because LLC members are shielded from personal liability, the law requires extra protection. An LLC license must carry liability insurance, with minimum coverage that rises with the number of people listed on the license, and must file a special LLC worker bond, separate from the contractor bond, for the benefit of employees owed wages and benefits. The amounts are set in the Business and Professions Code and have been changed over time; read CSLB's current LLC requirements before forming an LLC for contracting. Capitol Valley is a corporation, so these rules do not apply to it.

Workers' compensation

California requires every employer to carry workers' compensation insurance or be approved as self-insured. For contractors, CSLB adds licensing consequences: a license cannot be issued, renewed or reactivated without either a current certificate of workers' compensation insurance or self-insurance on file, or a certificate of exemption stating that the licensee has no employees. A licensee that files an exemption and then hires anyone must obtain coverage and file it with CSLB. Failure to have coverage when required leads to automatic suspension of the license, and local building departments, as Lesson 6 explained, require a workers' compensation declaration before issuing a permit.

California has been moving toward requiring workers' compensation for every contractor, with or without employees. Senate Bill 216 (2022) removed the exemption first for higher-risk classifications such as roofing, concrete, HVAC, asbestos abatement and tree service, and set a later date for the rest. Reporting on later legislation states that the date for all remaining classifications was pushed back to January 1, 2028. Confirm the current status on CSLB's website; for a C-10 contractor with employees, coverage is required now in any case.

Workers' compensation premiums are calculated from payroll by job classification. The insurer applies a rate per 100 dollars of payroll for each class, then adjusts for the contractor's claims history through an experience modification. Electricians are in a construction class with a meaningful rate, and office staff are in a much cheaper clerical class. Misclassifying employees into cheaper classes to lower the premium is fraud.

# Illustrative workers' compensation premium: rate per 100 dollars of payroll, times an experience modifier
classes = [
    ("Electrical wiring (field)", 620_000, 6.10),
    ("Clerical office", 140_000, 0.35),
]
emod = 0.92            # better-than-average claims history
total = 0.0
for name, payroll, rate in classes:
    premium = payroll / 100 * rate
    total += premium
    print(f"{name:<26} payroll {payroll:>8,}  rate {rate:>5.2f} per 100  -> {premium:>10,.2f}")
print(f"{'Manual premium':<26} {total:>40,.2f}")
print(f"{'After modifier 0.92':<26} {total * emod:>40,.2f}")

Electrical wiring (field)  payroll  620,000  rate  6.10 per 100  ->  37,820.00
Clerical office            payroll  140,000  rate  0.35 per 100  ->     490.00
Manual premium                                            38,310.00
After modifier 0.92                                       35,245.20

All rates here are invented for the example; real class codes and rates come from the insurer and California's rating bureau. A modifier below 1.00 means the contractor's claims have been better than average for its size and type.

Employee or independent contractor?

Many small contractors try to treat helpers as independent contractors to avoid payroll taxes and workers' compensation. California makes that hard. Labor Code section 2750.5 creates a presumption that a worker performing services for which a contractor's license is required is an employee rather than an independent contractor, and a person who hires an unlicensed worker for licensed work is treated as that worker's employer. On top of that, California's ABC test, in the Labor Code, generally treats a worker as an employee unless the hiring business shows the worker is free from its control, does work outside the usual course of its business, and is customarily engaged in an independently established trade or business. The construction industry has specific provisions, but the practical rule for a C-10 contractor is simple: the electricians and helpers who do your work are your employees.

Liability insurance and other coverage

Apart from LLCs, CSLB does not require contractors to carry commercial general liability insurance, but California requires contractors to disclose to home improvement customers whether they carry it, and most commercial customers and general contractors require it by contract with specified limits and additional insured endorsements. Commercial auto insurance covers the company's vehicles, and many contractors carry an umbrella policy above the primary limits. Builders risk insurance, usually bought by the owner or general contractor, covers the work during construction. Lesson 9 covers the contract clauses where these requirements appear.

Payroll basics for the Law and Business exam

Employment requirements are about one in five questions on the Law and Business exam, so the basics of California payroll are worth knowing. An employer registers with the Employment Development Department (EDD) and reports wages and withholds state income tax and State Disability Insurance from employees' pay, while paying Unemployment Insurance and Employment Training Tax as the employer. The EDD's California Employer's Guide (DE 44) explains the rules and is on the exam's reference list. Federal obligations include withholding federal income tax, Social Security and Medicare, paying the employer's share and federal unemployment tax, and verifying eligibility to work on Form I-9; IRS Publication 15 covers the federal side. California also requires itemized wage statements with each paycheck, minimum wage and overtime compliance, meal and rest breaks, and paid sick leave. Public works projects add prevailing wage and certified payroll, covered in Lesson 9.

Checking another contractor's coverage

The same rules that apply to Capitol Valley protect it when it hires others. CSLB's online license lookup shows whether a contractor's license is active, its classifications, its bond and its workers' compensation status. For general liability and auto coverage, contractors exchange certificates of insurance naming the hiring party as certificate holder and, where the contract requires it, as additional insured. A certificate is only evidence of coverage at the time it is issued, so Capitol Valley requests new certificates when policies renew and keeps them with each subcontract.