Preliminary Notice

California Preliminary Notice Requirements

In California, the preliminary notice (often called the 20-day notice) is the gateway that preserves a claimant’s mechanics lien, stop payment notice, and payment bond rights. Most subcontractors and suppliers must serve it on the owner, direct contractor, and construction lender within 20 days of first furnishing labor or materials. Serving it late limits recovery to amounts furnished in the 20 days before notice.

Why one form protects three remedies

The preliminary notice is the most important piece of paper in California construction payment, and it is also the most commonly botched. A single timely notice preserves three separate rights at once: the mechanics lien, the stop payment notice, and the claim against a payment bond. Fail to serve it, or serve it defectively, and a claimant can forfeit all three before any dispute even arises.

It is not a claim and not an accusation. It is simply notice to the people who control the money — the owner, the direct contractor, and the lender — that the sender is furnishing to the project and retains its statutory payment-security rights if a problem develops.

The 20-day rule and the look-back

The notice should be served within 20 days of first furnishing labor or materials. Serving it late does not destroy all rights, but it limits the claimant to amounts furnished within the 20 days before the notice was given (and afterward). On a long project, a notice served months late can leave a large early balance unsecured, which is why prompt service at the start of work matters so much.

Who must serve, and who receives it

Subcontractors, material suppliers, and equipment lessors generally must serve a preliminary notice to keep their lien, stop-notice, and bond rights. A direct contractor in privity with the owner does not need the notice to preserve its lien, but must still serve the construction lender to reach lender-held funds. The notice ordinarily goes to the owner or reputed owner, the direct contractor, and the construction lender, by a statutorily approved method with proof of service retained.

Defects that undermine a notice

Common problems include omitting a required recipient (often the lender), using an outdated or wrong owner address, leaving out the statutorily required statement to the owner, or keeping no proof of service. California recognizes a substantial-compliance doctrine in some circumstances, but relying on it is risky — the safer course is a complete, correctly served notice and a documented record of how and when it went out.

Statutes that govern

Preliminary notice: Civ. Code §§ 8200–8216. Effect of failure to give notice on lien, stop-notice, and bond rights: §§ 8200, 8204. Required form and contents: §§ 8102, 8202.

How Stone LLP helps

Stone LLP advises contractors and suppliers on notice strategy at the front end and, when a payment problem surfaces, evaluates whether notice was properly preserved and what that means for the available remedies. The firm brings 45 years of California business-dispute experience and offices in Irvine, Century City, and San Jose to commercial and large private-works matters statewide.

Frequently asked questions

What is a California preliminary notice?

It is a written notice served near the start of furnishing that preserves a claimant’s mechanics lien, stop payment notice, and payment bond rights. It is informational, not a claim or a lien.

What is the deadline to serve it?

Within 20 days of first furnishing labor or materials. Late service limits recovery to amounts furnished in the 20 days before the notice and after, so early service protects more of the balance.

Do general contractors have to send one?

A direct contractor with a direct contract with the owner does not need it to preserve the lien, but should still serve the construction lender to preserve rights to lender-controlled funds.

What happens if I never sent a preliminary notice?

For most subcontractors and suppliers, failing to serve a valid notice can forfeit lien, stop-notice, and bond rights. Whether any path remains depends on the facts, including the substantial-compliance doctrine.

Is the preliminary notice the same as a lien?

No. The preliminary notice preserves the right to record a lien later; it does not itself attach to the property. The lien is a separate, later step with its own deadlines.

Talk to Stone LLP about getting paid

Deadlines on California payment claims are strict. The sooner you call, the more options stay open.

Call 949-477-9100