A California subcontractor agreement needs to do more than describe the job and the price. To hold up, it has to identify a properly licensed subcontractor, define the scope in enough detail to survive a dispute, respect the state’s statutory payment clock, stay inside California’s narrow lane for indemnification, and leave mechanic’s lien rights alone. Skip any of that and the contract can turn into a liability rather than a shield.
Confirm the License Before Signing
California requires a Contractors State License Board (CSLB) license for any construction work valued at $1,000 or more, including labor and materials. The exemption below that threshold applies only when no permit is required and the unlicensed person hires no one to help.1Contractors State License Board. AB 2622 Implementation – License Requirement for Minor Work If a permit is needed or a worker is employed, a license is required regardless of dollar amount.
The penalties are severe. A first conviction for contracting without a license is a misdemeanor carrying up to $5,000 in fines and six months in county jail. Repeat offenders face fines of at least $5,000 (or 20 percent of the contract price, whichever is greater) and a minimum of 90 days in jail.2California Legislative Information. California Code Business and Professions Code BPC 7028 An unlicensed subcontractor cannot sue to collect payment, and the hiring party can sue to recover every dollar already paid.3California Legislative Information. California Code Business and Professions Code BPC 7031
The CSLB issues dozens of specialty classifications, and a subcontractor must hold the right one for the work they will perform.4Contractors State License Board. CSLB Licensing Classifications Working outside your classification can trigger fines and suspension. The agreement should list the subcontractor’s license number and classification, and the general contractor should verify both through the CSLB’s online database before work begins.
Every licensee must also maintain a $25,000 contractor’s bond, and any subcontractor with employees must carry workers’ compensation insurance.5Contractors State License Board. CSLB Bond Requirements Confirming those coverages in writing belongs in the agreement.
Write the Scope With Enough Detail to Survive a Dispute
A vague scope of work is where most subcontractor disputes start. California courts interpret ambiguous contract language against the party that wrote it, so the drafter carries the risk of imprecision. Describe the specific tasks, materials, quality standards, and deadlines with enough detail that a stranger reading the document would come to the same understanding as the parties.
Construction work must comply with California’s building codes, including Title 24 of the California Code of Regulations, which covers energy efficiency, structural safety, and accessibility.6California Energy Commission. Building Energy Efficiency Standards Referencing applicable code requirements in the agreement reinforces the subcontractor’s compliance duty and gives the general contractor clear grounds to reject nonconforming work.
Address lower-tier subcontracting as well. State whether the subcontractor can bring in lower-tier subs or must perform the work with their own crew. If lower tiers are permitted, require the subcontractor to ensure those parties are licensed, insured, and compliant with California labor laws. A general contractor can face liability when a sub’s unlicensed or uninsured workers are hurt on the job.
Payment Terms and the Statutory Clock
California requires a general contractor to pay each subcontractor within 10 days of receiving a progress payment from the owner, unless the parties agree to different timing in writing. A violation carries a 2 percent per month penalty on the unpaid amount and can prompt disciplinary action against the contractor’s license. On private work, the owner must pay the general contractor within 30 days after receiving a proper payment demand, and a wrongful withholding triggers the same 2 percent monthly penalty plus liability for the subcontractor’s attorney fees if the dispute goes to court.7California Legislative Information. California Code Civil Code CIV 8800
Retainage Release Deadlines
On private works, the owner must release retainage to the general contractor within 45 days of completion.8California Legislative Information. California Code Civil Code CIV 8812 The general contractor then has 10 days after receiving retainage to pass along each subcontractor’s share. If there is a good-faith dispute, the general contractor may withhold up to 150 percent of the disputed amount, and no more.9California Legislative Information. California Code Civil Code CIV 8814
On public works, the awarding public entity must release retention within 60 days after the project is complete, with the same 150 percent cap on disputed withholdings.10California Legislative Information. California Code Public Contract Code PCC 7107 The agreement should specify the retainage percentage and the exact conditions for release so neither side is guessing.
Pay-If-Paid Versus Pay-When-Paid
A pay-if-paid clause makes the owner’s payment to the general contractor a condition that must occur before the subcontractor gets paid at all. California courts have consistently held these clauses unenforceable because they conflict with the subcontractor’s mechanic’s lien rights. A pay-when-paid clause is different. It only adjusts timing: the general contractor may delay briefly until the owner pays, but the obligation to pay the subcontractor remains. California courts will enforce a pay-when-paid clause as long as the delay is reasonable. If your draft contains pay-if-paid language, a court will likely strike it, so use pay-when-paid instead.
Indemnification Limits Under Section 2782
Indemnification clauses allocate financial responsibility when something goes wrong on the jobsite, and California Civil Code Section 2782 puts hard limits on how far they can reach. Any clause that tries to make the subcontractor indemnify the general contractor for losses caused by the contractor’s own sole negligence or willful misconduct is void.11California Legislative Information. California Code Civil Code CIV 2782
The restrictions tighten depending on who owns the project. For public agency contracts entered into on or after January 1, 2013, clauses shifting liability for the agency’s active negligence onto the subcontractor are also void. For private construction where the owner is not acting as a contractor, clauses imposing liability for the owner’s active negligence are unenforceable to that extent. In practice, most enforceable indemnification clauses limit the subcontractor’s obligation to losses caused by their own negligence or the negligence of their employees and lower-tier subs.
Insurance Requirements
General contractors typically require subcontractors to carry general liability insurance, commercial auto coverage, and workers’ compensation. The agreement should specify minimum policy limits (commonly $1 million per occurrence for general liability) and require proof of coverage before work begins.
Two provisions deserve careful attention. An additional insured endorsement extends the subcontractor’s liability policy to cover the general contractor for claims arising from the subcontractor’s work. The most common forms are the CG 20 10, which covers ongoing operations, and the CG 20 37, which covers completed operations. Without both, the general contractor may have a coverage gap after the subcontractor finishes their portion of the work. A waiver of subrogation prevents the subcontractor’s insurer from later suing the general contractor to recover money it paid on a claim. Spell both out in the agreement rather than leaving them to assumption.
Worker Classification for Licensed Subs
Misclassifying a worker as an independent contractor is one of the most expensive mistakes in California construction. The state generally uses the ABC test, which presumes every worker is an employee unless the hiring entity proves the worker is free from control and direction, performs work outside the company’s usual business, and operates an independently established trade or business of the same nature.12Labor and Workforce Development Agency. ABC Test
Construction subcontractors who hold a valid CSLB license sit in a different lane. California analyzes licensed construction subcontractors under the older Borello multi-factor test rather than the ABC test, and the business-to-business exception to the ABC test explicitly excludes work requiring a CSLB license.13Department of Industrial Relations. Independent Contractors FAQ A properly licensed subcontractor faces less classification risk than an unlicensed worker doing the same task.
The agreement can reinforce independent-contractor status by specifying that the subcontractor controls means and methods, uses their own tools and equipment, carries their own insurance, and is responsible for their own employees. None of that matters, though, if the actual working relationship looks like employment. When a general contractor sets daily schedules, provides equipment, and supervises every task, a court or the Labor Commissioner will look past the label.
Preserve Mechanic’s Lien Rights
A mechanic’s lien is the most powerful payment tool a California subcontractor has. It places a claim directly on the improved property, which means the owner cannot sell or refinance without dealing with it. The procedural requirements are strict, and missing a single deadline can destroy the right entirely.
Before recording a lien, the subcontractor must serve a preliminary notice on the owner, the general contractor, and any construction lender within 20 days of first furnishing labor or materials. Serving late does not eliminate the right, but limits the lien to work performed in the 20 days before the notice was actually served. Laborers are exempt from the preliminary notice requirement, and parties with a direct contract with the owner only need to notify the construction lender.14California Legislative Information. California Code Civil Code CIV 8200
A subcontractor generally has 90 days after project completion to record the lien with the county recorder. That deadline shrinks to 30 days if the owner files a notice of completion. Once recorded, the subcontractor must file suit to enforce the lien within 90 days, or it expires.15California Legislative Information. California Code Civil Code CIV 8416 The agreement should never contain language waiving mechanic’s lien rights, because California law prohibits such waivers.
Prevailing Wage and DIR Registration for Public Work
Subcontractors performing work on public works projects must pay prevailing wages, the hourly rate (including benefits) set by the Department of Industrial Relations for each trade and locality. The requirement applies to virtually all publicly funded construction work valued over $1,000.16California Legislative Information. California Code Labor Code LAB 1720
Every subcontractor on a public works job must also be registered with the Department of Industrial Relations before performing any work. Unregistered subcontractors cannot be listed on a bid proposal, and a general contractor that uses one faces penalties as well. For any public project, the agreement should include representations that the subcontractor is currently registered and will comply with all prevailing wage and certified payroll requirements. These provisions do not apply to purely private work.
Termination, Force Majeure, and Delays
Address two types of termination. A for-cause termination happens when one party fails to perform, such as a subcontractor who falls seriously behind schedule, does defective work, or loses their license. These clauses typically require written notice and a cure period, giving the subcontractor a set number of days to fix the problem before termination takes effect. Skipping the cure period when the contract requires one is a common way for a general contractor to turn a valid termination into a breach-of-contract claim against themselves.
A for-convenience clause lets the general contractor end the agreement without alleging wrongdoing. These are standard on larger projects where owners sometimes change plans or cut budgets mid-construction. Spell out what the subcontractor gets paid: typically compensation for work already completed, materials purchased, and reasonable demobilization costs. Courts have found that termination-for-convenience clauses used as a pretext to avoid payment can constitute bad faith.
Force majeure clauses excuse performance when events beyond either party’s control prevent the work from proceeding. Common triggering events include natural disasters, government orders, labor strikes, pandemics, and severe material shortages. Without a force majeure clause, a subcontractor who cannot perform due to a wildfire evacuation order or a government-mandated shutdown could face a breach claim despite having no ability to continue. The clause should define which specific events qualify, require prompt written notice from the affected party, and allow either side to terminate if the event extends beyond a specified period, typically 30 to 90 days.
Dispute Resolution
Most California construction agreements sequence dispute resolution: mediation first, then arbitration or litigation if mediation fails. Mediation involves a neutral third party who facilitates negotiation. It is non-binding and relatively inexpensive, which is why most agreements require it as a first step. If mediation does not produce a settlement, the agreement usually directs the parties into binding arbitration or court.
Arbitration is private and generally faster than litigation, but the clause should specify the governing rules, how arbitrators are selected, and whether the decision can be appealed. California courts will enforce arbitration agreements unless they are found unconscionable, which most often means the clause was buried in a take-it-or-leave-it contract and heavily favors one side.
Mechanic’s lien claims run on their own clock and will often move in parallel with whatever process the agreement prescribes. Because lien deadlines are measured in days, a subcontractor in a payment dispute should serve the preliminary notice and protect lien rights even while mediation is underway. Waiting for mediation to finish before starting the lien process is how subcontractors lose their most effective leverage.
Workplace Safety Obligations
California subcontractors must comply with both federal OSHA standards and Cal/OSHA requirements, which are frequently stricter. Key OSHA construction standards cover fall protection for workers six or more feet above a lower level, scaffolding, and stairway and ladder safety.17Occupational Safety and Health Administration. Compliance Assistance Quick Start – Construction Industry
General contractors can face liability for safety violations committed by their subcontractors, particularly when the general contractor controls the jobsite. A well-drafted agreement requires the subcontractor to maintain their own safety program, train their workers, and indemnify the general contractor for fines or claims arising from the subcontractor’s safety failures. Those provisions do not eliminate the general contractor’s own safety duties, but they create a contractual right to recover costs when a subcontractor’s negligence causes the problem.