Mechanics lien · California · updated 2026-07-21

Mechanics Lien Deadlines — California (2026)

Verbatim preliminary-notice, filing, and enforcement deadlines for California mechanics liens, straight from the state statute. Free to cite — CC BY 4.0 open data.

Preliminary notice
20 days from first furnishing
Strictly enforced; late = work after only
Lien filing
90 days
Enforcement (foreclose)
90 days
Not legal advice

This is general information, not legal advice. Lien laws change and vary by project type. Verify every deadline with a licensed construction attorney in your state before relying on it. Data current as of 2026-07-21.

Why these three dates matter for California subcontractors

Miss the preliminary notice deadline and you may lose the right to file a lien at all. Miss the filing deadline and the lien is void. Miss enforcement and the lien expires unenforced. Each is a hard statutory cutoff in California — and each is the difference between getting paid and eating the cost of labor and materials.

The proof that establishes when you performed work and what site conditions existed is a contemporaneous, timestamped daily log. That is exactly what VoiceLogPro produces: speak your daily report on site, get a court-ready, timestamped PDF.

Residential vs. commercial vs. public projects in California

The California mechanics-lien rules don't apply identically to every job. Residential, commercial, and public projects each carry different requirements — and public projects usually bar a lien entirely, replacing it with a payment-bond claim.

Residential (owner-occupied, ≤4 units)

20-day preliminary notice mandatory; direct contractor exemption does not apply to subs who contract with the owner. Lien release rules are strict.

Commercial

Direct contractors file within 90 days of completion; subcontractors within 90 days of last furnishing. Preliminary notice required of all non-prime contractors.

Public works

No lien — file a payment bond claim (Labor Code § 9550+) or a stop-payment notice. The stop notice is California's distinctive public-works tool.

Who has lien rights in California — and who must give notice

Your role on the project determines what you must do to preserve lien rights. The closer you are to the owner, the fewer notice requirements you face.

Direct (prime) contractor

The contractor with a direct contract with the property owner generally has the broadest lien rights and usually does NOT need to send a preliminary notice — their contract is the notice.

Subcontractor

Subs almost always must send a preliminary notice to preserve lien rights, because they have no contract with the owner. The notice tells the owner a sub is working on the project.

Material supplier

Suppliers (especially second-tier) face the strictest notice rules in most states. Some states distinguish between suppliers-to-the-GC and suppliers-to-a-sub, with different deadlines.

Design professional / architect

Architects and engineers typically have lien rights in most states, often under a separate statute section. Their deadlines sometimes differ from trade contractors.

How to file a mechanics lien in California (5 steps)

Filing in California means hitting 90 days for recording and following each step in order. The single best protection is a contemporaneous daily log proving when you were on site — that is the date the whole deadline clock runs from.

  1. 1. Confirm your deadline clock has started
    Identify your last day of furnishing labor or materials to the project. In most states the filing deadline runs from this date; in some it runs from project completion or the owner's notice of completion. The VoiceLogPro lien calculator computes the exact date for your state.
  2. 2. Send your preliminary notice (if required)
    If your state requires a preliminary notice (and most do for anyone without a direct owner contract), send it now — before the deadline. Send it by certified mail with return receipt so you have proof of service. Keep a copy with the postmark.
  3. 3. Prepare the lien document (claim of lien / affidavit)
    Your lien must include: your name and address, the property owner's name, a legal property description (not just a street address), the amount owed, and a description of the labor/materials furnished. In states like Texas the lien must be sworn and notarized.
  4. 4. Record the lien in the right county
    Record the lien with the county recorder (or clerk of court in a few states like Louisiana) in the county where the property is located. Pay the recording fee. The recording date is what counts — record early, never on the deadline.
  5. 5. Serve the lien on the owner (if your state requires it)
    Texas, Illinois, and several other states require you to serve a copy of the recorded lien on the owner within days of recording. Serve by certified mail and keep the return receipt. Then enforce (foreclose) the lien within your state's enforcement window — typically 1–2 years.

What can kill your lien in the California

Lien rights are technical and unforgiving. These are the most common reasons a California lien — or lien claim anywhere — gets thrown out. Each one is avoidable with the right documentation and timing.

No 20-day preliminary notice

California's 20-day preliminary notice is the most common lien-killer. Without it, a sub or supplier has no lien rights at all — even on commercial work.

Recording after the 90-day window

The 90-day deadline is absolute. There is no extension for disputes, COVID, or anything else.

Release-of-lien traps

Accepting a 'conditional' waiver and release without confirming payment clears can wipe your lien before you're paid. Use conditional waivers only.

Open data — download California deadlines

These deadlines are part of the canonical 51-state dataset. Cite it, fork it, build on it:

JSON

All 51 states, nested objects

CSV

Flat table for spreadsheets

GitHub

Source + per-state Markdown

Adjacent state lien deadlines

ArkansasFiling: 1 year+ColoradoFiling: —

Embed the California lien widget

Show live California lien deadlines on your own site (estimator portal, law firm, trade-association page):

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Document your work before the deadline passes

A timestamped daily log is the evidence your California lien and delay claims depend on. Speak it on site in 60 seconds — get a court-ready PDF.