Short answer: California’s prompt payment statutes impose a penalty of two percent per month on wrongfully withheld construction payments, plus attorney’s fees and costs to the prevailing party. Owners must pay direct contractors within 30 days (Civ. Code § 8800), contractors must pay subcontractors within seven days of receiving a progress payment (Bus. & Prof. Code § 7108.5), and retention must be released within 45 days of completion (Civ. Code § 8812).
Key Takeaways
- The penalty is two percent per month, 24% annualized, on wrongfully withheld amounts, plus prevailing party attorney’s fees.
- Owner to direct contractor: 30 days for progress payments (Civ. Code § 8800); 45 days for retention (Civ. Code § 8812).
- Contractor to subcontractor: seven days after receiving a progress payment (Bus. & Prof. Code § 7108.5); 10 days for retention (Civ. Code § 8814).
- A good faith dispute permits withholding no more than 150 percent of the disputed amount, not the entire payment.
- Under United Riggers & Erectors, Inc. v. Coast Iron & Steel Co. (2018), the dispute must relate to the specific payment withheld.
Most construction payment disputes are litigated as breach of contract claims, where the recovery is the unpaid balance plus interest at the legal rate, and each side pays its own attorneys unless the contract says otherwise.
California's prompt payment statutes offer a different economic structure: a penalty of two percent per month on wrongfully withheld amounts, twenty-four percent annualized, plus attorney's fees and costs to the prevailing party. These remedies are separate from and in addition to contract damages, mechanics lien rights, and bond claims.
They are also underused, largely because the statutes are scattered across three different codes.
Private works: owner to direct contractor
Progress payments. Unless otherwise agreed in writing, an owner must pay the direct contractor any progress payment as to which there is no good faith dispute within 30 days after notice demanding payment pursuant to the contract is given (Civ. Code § 8800). An owner who wrongfully withholds is liable for a penalty of two percent per month on the amount wrongfully withheld, in lieu of any interest otherwise due, and the prevailing party in a collection action is entitled to reasonable attorney's fees and costs.
Retention. Where the owner has withheld retention, the owner must pay it to the direct contractor within 45 days after completion of the work of improvement (Civ. Code § 8812).
Private works: down the chain
Progress payments. A prime contractor or subcontractor must pay each subcontractor not later than seven days after receipt of each progress payment, unless otherwise agreed in writing, in the amount allowed on account of the subcontractor's work (Bus. & Prof. Code § 7108.5). Violation constitutes cause for disciplinary action by the Contractors State License Board and subjects the licensee to a penalty, payable to the subcontractor, of two percent of the amount due per month for every month payment is not made. In an action for the collection of funds wrongfully withheld, the prevailing party is entitled to attorney's fees and costs. These sanctions are separate from and in addition to all other civil, administrative, and criminal remedies.
Retention. A direct contractor that has withheld retention from subcontractors must pay each subcontractor its share within 10 days after receiving all or part of a retention payment (Civ. Code § 8814). Wrongful withholding carries a penalty of two percent per month in lieu of any other interest due, and the prevailing party in a collection action recovers reasonable attorney's fees and costs (Civ. Code § 8818).
Disputed work. Where a subcontractor gives notice that work in dispute has been completed in accordance with the contract, the direct contractor must give notice of acceptance or rejection within 10 days, and on acceptance must pay the related retention within 10 days (Civ. Code § 8816).
Public works
Public projects operate under a parallel regime. Retention on public works is governed principally by Public Contract Code section 7107, with additional provisions at sections 10261.5 and 10262.5. Business and Professions Code section 7108.5 applies to progress payments on both private and public projects. Note the asymmetry: section 7108.5 reaches both direct contractors and subcontractors, while Public Contract Code section 7107 addresses direct contractors.
The good faith dispute exception, and its limits
Every one of these statutes permits withholding where there is a good faith dispute. The withholding is capped: an owner or upstream contractor may withhold no more than 150 percent of the disputed amount (Civ. Code § 8800; Bus. & Prof. Code § 7108.5).
Two points are frequently missed.
The 150 percent cap is a real cap. Withholding an entire payment because a portion is disputed is itself a violation. If $20,000 of a $200,000 application is genuinely contested, the permissible withholding is $30,000. The remaining $170,000 is subject to penalties if held.
The dispute must relate to the payment being withheld. In United Riggers & Erectors, Inc. v. Coast Iron & Steel Co. (2018) 4 Cal.5th 1082, the California Supreme Court held that the good faith dispute exception in Civil Code section 8814 applies only where the dispute relates to the specific retention payment at issue, not to any dispute anywhere in the parties' relationship. The court was concerned with the possibility of double withholding: a contractor holding retention hostage to unrelated claims while separately refusing to pay those claims.
That decision aligned the subcontractor retention rule with the owner-to-contractor rule, and it materially narrowed a defense that had been read broadly for years. Withholding retention because of a delay claim, a backcharge dispute, or a dispute on a different project is now considerably harder to defend.
Why these claims are worth pursuing
The economics change the negotiation. A two percent monthly penalty compounds pressure on a party that was comfortable slow-walking a contract claim. On $250,000 withheld for a year, the penalty alone is $60,000.
Fee shifting changes the calculus for smaller claims. A $60,000 balance is often uneconomic to litigate on a contract theory. With prevailing party fees available, it becomes viable, which is precisely the legislative intent.
The remedies stack. Prompt payment penalties are in addition to, not instead of, mechanics lien recovery, stop payment notice claims, payment bond claims, and contract damages. A well-structured demand pursues them in parallel.
They survive the loss of lien rights. A claimant who missed a lien deadline has not necessarily lost the prompt payment claim, which runs on the ordinary statute of limitations rather than the compressed lien calendar.
What to document
Prompt payment claims are won on the paper trail:
- The payment application or notice demanding payment, and the date it was given
- Whether the contract altered the statutory timeline by written agreement
- Any written notice of a dispute, and specifically what was disputed
- The arithmetic: total application, disputed portion, amount withheld, and whether the withholding exceeded 150 percent of the dispute
- For retention claims, the date the upstream party received retention from above
- Whether the asserted dispute relates to this payment or to something else
That last item is where many defenses collapse. A contractor that withheld retention while pointing to an unrelated backcharge has a United Riggers problem.
For owners and upstream contractors
The defensive posture is straightforward and requires discipline. Identify disputes specifically and in writing at the time of the application. Withhold only what the statute permits, and only against the payment to which the dispute relates. Release the undisputed remainder on time. Where work in dispute is completed, respond within the statutory window rather than letting it sit.
Reflexive withholding of an entire application to preserve leverage is the conduct these statutes were enacted to penalize, and it converts a defensible contract dispute into an exposure that includes penalties and the other side's attorney's fees.
Frequently Asked Questions
What is the penalty for late payment on a California construction project?
Two percent of the wrongfully withheld amount per month, in lieu of any other interest, plus reasonable attorney’s fees and costs to the prevailing party in a collection action (Civ. Code §§ 8800, 8818; Bus. & Prof. Code § 7108.5).
How long does a contractor have to pay a subcontractor in California?
Not later than seven days after receipt of each progress payment, unless otherwise agreed in writing (Bus. & Prof. Code § 7108.5). Retention must be paid within 10 days after the direct contractor receives it (Civ. Code § 8814).
Can an owner withhold payment because of a dispute?
Yes, but only up to 150 percent of the disputed amount (Civ. Code § 8800). Withholding an entire application because a portion is contested is itself a violation and exposes the withholding party to penalties on the undisputed balance.
Can a contractor withhold retention over an unrelated dispute?
Generally no. In United Riggers & Erectors, Inc. v. Coast Iron & Steel Co. (2018), the California Supreme Court held that the good faith dispute exception applies only where the dispute relates to the specific retention payment at issue, not to any dispute in the parties’ relationship.
Do prompt payment penalties apply if I missed my mechanics lien deadline?
Yes. Prompt payment claims are independent statutory remedies that run on the ordinary limitations period rather than the compressed lien calendar, and they stack with contract damages and bond claims.
Speak with a construction attorney
California's prompt payment statutes are among the most effective collection tools available on a construction project, and among the least used. Stone LLP represents contractors, subcontractors, suppliers, owners, and developers in construction payment disputes throughout California, with offices in Irvine, Century City, and San Jose.
To evaluate a withheld progress payment or retention balance, contact Stone LLP or call 949-477-9100.
This article is provided for general informational purposes and does not constitute legal advice. No attorney-client relationship is created by reading this article.