Key authorities
Pay-if-paid clauses void: Wm. R. Clarke Corp. v. Safeco Ins. Co. (1997) 15 Cal.4th 882. Statutory waiver and release forms: Civ. Code §§ 8132–8138. License requirement and substantial compliance: Bus. & Prof. Code § 7031.
When a California contractor sues to get paid, owners commonly raise the same defenses: alleged defective work and backcharges, pay-if-paid or pay-when-paid clauses, setoffs and liquidated delay damages, defective notices, and license challenges. Many of these defenses are narrower than owners claim — California voids pay-if-paid clauses, and a properly licensed contractor can defeat a license challenge.
On a contested project, the dispute is usually not whether work was done but whether the owner can find a reason not to pay for it. Experienced owners and developers raise a predictable set of defenses, and a contractor’s recovery often depends on anticipating and dismantling them rather than just proving the unpaid balance.
Several of the most common defenses are weaker than they first appear under California law.
A pay-if-paid clause tries to make a subcontractor’s right to payment contingent on the general contractor first being paid by the owner — shifting the risk of owner nonpayment downstream. California treats these clauses as unenforceable against public policy, because they operate as an improper waiver of the subcontractor’s constitutionally protected mechanics lien and related rights. A pay-when-paid clause that merely fixes a reasonable time for payment is treated differently, but it does not let a contractor withhold indefinitely.
Owners frequently assert that work was defective or assess backcharges to offset what they owe. These are defenses to be tested, not automatic reductions: the questions are whether the alleged defect is real, whether it was within the contractor’s scope, whether proper notice and an opportunity to cure were given, and whether the claimed cost is reasonable and documented. A manufactured or inflated backcharge raised for the first time after a payment demand often signals a pretext for withholding.
California law lets an owner challenge a contractor’s license status to resist payment, and the consequences of being unlicensed are severe. That is precisely why this defense fails against a properly licensed contractor: the issue is being able to prove licensure at all relevant times during performance. Stone LLP represents licensed contractors, and defeating a license challenge is a matter of marshaling the licensing record and, where needed, the substantial-compliance provisions the statute provides.
Owners also rely on signed lien waivers, alleged late or missing notices, and contractual claim procedures. California prescribes specific statutory waiver and release forms, and a release outside those forms, or one signed without payment actually being received, may not bind the claimant the way the owner hopes. Careful attention to what was actually signed, and when, frequently neutralizes these defenses.
Pay-if-paid clauses void: Wm. R. Clarke Corp. v. Safeco Ins. Co. (1997) 15 Cal.4th 882. Statutory waiver and release forms: Civ. Code §§ 8132–8138. License requirement and substantial compliance: Bus. & Prof. Code § 7031.
Stone LLP builds nonpayment cases for licensed contractors with the owner’s likely defenses already in view, pairing the affirmative claim with the lien, stop-notice, and prompt-payment remedies. With 45 years representing California businesses from Irvine, Century City, and San Jose, the firm focuses on substantial commercial and private-works disputes.
Generally no. California treats pay-if-paid clauses as unenforceable against public policy because they improperly waive a subcontractor’s mechanics lien and related rights. Pay-when-paid timing clauses are treated differently but cannot justify indefinite withholding.
Not automatically. A defect or backcharge is a defense to be tested on the facts — whether it is real, within scope, properly noticed, and reasonably priced. Inflated backcharges raised after a payment demand often signal a pretext.
An owner can raise a license challenge, but it does not succeed against a contractor who was properly licensed during performance. The defense is about proving licensure, which a licensed contractor can do.
It depends on which form and the circumstances. California prescribes specific statutory waiver and release forms, and a waiver that does not conform, or that was not supported by the payment it recited, may not bind you as the owner claims.
By building the payment case with the defenses in view from the start and preserving every statutory right early. Stone LLP can review your situation. Call 949-477-9100.
Deadlines on California payment claims are strict. The sooner you call, the more options stay open.