How to Put a Lien on a Property in California (2026 Step-by-Step Guide)
Last updated: July 2025
To put a mechanics lien on a property in California, a subcontractor or material supplier must first serve a 20-day preliminary notice under Cal. Civ. Code § 8200, then record a Claim of Mechanics Lien with the county recorder's office no later than 90 days after the Notice of Completion or Cessation is recorded — or 90 days after project completion if no such notice is recorded, under Cal. Civ. Code § 8412. Direct contractors (those contracted directly with the owner) get 90 days under § 8412 without a preliminary notice requirement, but subcontractors and suppliers who skip the 20-day notice lose their lien rights entirely on private works. A lien that is not enforced by filing a lawsuit within 90 days of recording is unenforceable and must be released.
What Is a Mechanics Lien in California and Who Can File One?
A California mechanics lien is a legal claim recorded against real property that secures payment for labor, materials, or services provided to improve that property. Under Cal. Civ. Code § 8400, anyone who furnishes labor, services, equipment, or materials for a work of improvement on private property has the right to file a mechanics lien if they are not paid.
Parties who can file include:
- General (direct) contractors — those with a written or oral contract directly with the property owner
- Subcontractors — any tier, from first-tier subs to sub-sub-subcontractors
- Material suppliers — companies that furnish lumber, fixtures, concrete, wiring, pipe, HVAC equipment, and similar materials
- Equipment lessors — companies that lease construction equipment to the project
- Design professionals — architects, engineers, and surveyors whose work is incorporated into the project
Public works projects (jobs for government entities) use a different mechanism — the Stop Payment Notice and Payment Bond claim — not the mechanics lien. Mechanics liens apply to private property only.
What Is the 20-Day Preliminary Notice Requirement in California?
Subcontractors, material suppliers, and equipment lessors must serve a 20-day preliminary notice within 20 days of first furnishing labor or materials on the project, as required by Cal. Civ. Code § 8200. This is the single most important step in the California lien process — without it, you cannot file an enforceable lien.
The notice must be served on three parties:
- The property owner (or reputed owner)
- The direct contractor (your GC)
- The construction lender, if any
Late service is allowed but costly: if you serve the notice after day 20, your lien rights are preserved only for work performed in the 20 days before the date you serve the notice, and all work performed before that 20-day window is unprotected. If you never serve the notice at all, you have no lien rights, period.
California preliminary notice resources
Acceptable methods of service under Cal. Civ. Code § 8106 are:
- Personal delivery
- First-class mail with certificate of mailing
- Certified mail, return receipt requested
- Overnight delivery by express service carrier
Using USPS Certified Mail is the industry standard because it gives you documented proof of mailing and a tracking record — both of which matter if your lien is ever challenged. USPS Certified Mail costs $4.85 as the base service fee in 2026, per the USPS Notice 123 Price List, plus standard First-Class Mail postage. Adding electronic Return Receipt adds $2.46.
What Are the Step-by-Step Requirements to File a California Mechanics Lien?
Putting a lien on a California property follows a specific sequence. Skipping or misordering any step can invalidate your claim.
Step 1 — Serve the 20-day preliminary notice Serve within 20 days of first furnishing. Keep your certificate of mailing or certified mail receipt. Document the date you first set foot on the job or delivered materials — that date starts the clock.
Step 2 — Monitor the project for completion Watch for a Notice of Completion or Notice of Cessation recorded by the property owner. Under Cal. Civ. Code § 8182, an owner can record a Notice of Completion within 15 days of actual completion. This matters because it triggers a shortened lien deadline.
Step 3 — Calculate your lien deadline
- If a Notice of Completion or Cessation is recorded: subcontractors and suppliers have 30 days to record their lien (Cal. Civ. Code § 8414). Direct contractors have 60 days.
- If no Notice of Completion or Cessation is recorded: all claimants have 90 days from actual project completion (Cal. Civ. Code § 8412).
This is the step where most subcontractors get burned. They assume they have 90 days, the owner records a Notice of Completion, and suddenly they're down to 30 days — often without knowing it.
California lien deadline reference
Step 4 — Prepare the Claim of Mechanics Lien form The lien must contain, under Cal. Civ. Code § 8416:
- A statement of the claimant's demand after deducting just credits and offsets
- The name of the owner or reputed owner
- A general statement of the kind of work furnished
- The name of the person who contracted for that work
- A description of the property sufficient to identify it (legal description or street address)
- The claimant's name and address
- A proof of service affidavit
California law requires the lien form to include a specific Notice to Property Owner warning block — if that block is missing, the lien is defective.
Step 5 — Record the lien with the county recorder File the completed lien at the recorder's office in the county where the property is located. Recording fees vary by county but typically run $15–$25 for the first page plus $3 per additional page. The lien is effective upon recordation.
Step 6 — Serve a copy of the lien on the property owner Under Cal. Civ. Code § 8416(b), you must serve a copy of the recorded lien on the property owner within 15 days of recording. Use the same certified mail or personal delivery methods as the preliminary notice. Failing to serve this copy does not void the lien but can create complications.
Step 7 — File a lawsuit to enforce the lien within 90 days Recording a lien is not the end — it is a temporary encumbrance. Under Cal. Civ. Code § 8460, you must file a lawsuit to foreclose the lien within 90 days of the date of recording. If you don't, the lien expires and is unenforceable. In practice, most payment disputes settle after the lien is recorded and before any lawsuit is filed.
How Much Can You Claim in a California Mechanics Lien?
Your lien amount is limited to the reasonable value of the labor, services, equipment, or materials you furnished to the project, less any payments you have already received. You cannot inflate the amount to include interest, attorney fees, or consequential damages in the lien itself — those get addressed in the enforcement lawsuit.
Overstating your lien amount intentionally can expose you to a claim of a fraudulent lien under Cal. Civ. Code § 8422, which allows the property owner to petition for release of the lien and seek attorney fees from you if the court finds willful exaggeration. Be accurate.
What Happens After You Record a California Mechanics Lien?
Once recorded, the lien attaches to the property title and clouds it — the owner cannot easily sell or refinance the property without resolving the lien. This is the leverage mechanics liens provide.
At this point, several outcomes are common:
- Owner or GC pays in full — you record a Release of Mechanics Lien (Cal. Civ. Code § 8120) within 30 days of receiving payment. Failure to release a lien after payment can make you liable for damages.
- Owner disputes the lien — they can petition the court to release the lien under Cal. Civ. Code § 8480 if they believe it is improper, or obtain a lien release bond under § 8424 to free the title while the dispute continues.
- You file a lawsuit — if payment is not made and the 90-day enforcement window is approaching, you file a lawsuit to foreclose the lien in the superior court of the county where the property is located.
According to Rabbet's 2024 Construction Payments Report, 82% of contractors face payment waits of more than 30 days — up from 49% just two years earlier. A recorded lien frequently moves you to the front of the payment priority line.
Do You Need a Licensed Contractor to File a Mechanics Lien in California?
California law requires contractors to hold a valid contractor's license to enforce a mechanics lien. Under Cal. Bus. & Prof. Code § 7031, an unlicensed contractor cannot bring an action for compensation for work that requires a license. If your license expired during the project, your lien rights may be compromised. Material suppliers who do not perform actual construction work are generally not subject to the licensing requirement.
Verify your license is current with the California Contractors State License Board (CSLB) before filing any lien claim.
Common Mistakes That Void a California Mechanics Lien
These are the errors that cost subcontractors their lien rights every year:
1. Missing the 20-day preliminary notice window entirely. No notice, no lien. This is a complete bar, not a technicality.
2. Serving the wrong parties. If there's a construction lender and you don't serve them, your lien rights against the lender's interest may be impaired.
3. Missing the 30-day post-Notice of Completion deadline. Subcontractors who don't monitor for recorded Notices of Completion get caught short when the 30-day window slams shut.
4. Incorrect property description. The lien must describe the property accurately enough to identify it. A wrong APN or missing legal description can make the lien defective.
5. Failing to file the enforcement lawsuit within 90 days. Recording the lien is just step one. A lien with no enforcement lawsuit expires automatically.
6. Inflating the lien amount. Claim only what you are owed. Intentional exaggeration exposes you to sanctions.
According to Rabbet's 2024 Construction Payments Report, slow payments cost the U.S. construction industry an estimated $280 billion in 2024 — adding roughly 14% to total construction spending. The mechanics lien system exists precisely to give subcontractors a remedy when they end up on the wrong side of that problem.
A single LienFlash preliminary notice costs $24.99. If it preserves lien rights on a $15,000 subcontract that would otherwise go unpaid, that is a 60,000% return on the cost of filing. On a $75,000 contract, the return exceeds 300,000%. The math on protecting your lien rights is not complicated.
Frequently Asked Questions
Do I need an attorney to file a mechanics lien in California?
No. California law does not require an attorney to prepare or record a mechanics lien. However, the forms must comply with the exact statutory requirements under Cal. Civ. Code § 8416, and errors can invalidate your claim. Using an attorney-reviewed template, like those provided by LienFlash, reduces that risk substantially. If you need to file an enforcement lawsuit, you will need legal counsel.
Can I file a mechanics lien if I have no written contract?
Yes. California mechanics lien rights attach based on the furnishing of labor or materials, not on whether you have a written contract. An oral agreement is sufficient. That said, a written contract significantly strengthens your position in any enforcement action because it documents the agreed scope and price.
What if I missed the 20-day preliminary notice deadline?
If you missed the 20-day window, serve the notice immediately. Late service preserves lien rights only for work performed in the 20 days before the date of service. Any work furnished more than 20 days before your notice date is unprotected. Going forward, serve preliminary notices on day one of every new job — not after you start worrying about payment.
How do I find out if a Notice of Completion has been recorded?
Check with the county recorder's office in the county where the project is located. Notices of Completion are public records. You can search online through many California county recorder portals, or hire a title company to run a search. Set a calendar reminder to check roughly 60 days into a project and again near substantial completion.
Can a property owner legally withhold my payment if they dispute my work quality?
Yes, a property owner can withhold disputed amounts — but a recorded mechanics lien still encumbers the title and forces the dispute into a formal resolution process. The lien itself does not determine fault; it creates leverage. The enforcement lawsuit is where the merits of the dispute get decided.
How long does a California mechanics lien last before it expires?
A California mechanics lien expires 90 days after the date it is recorded, unless you file a lawsuit to enforce it before that deadline under Cal. Civ. Code § 8460. There is no automatic renewal. If you let the 90-day window pass without filing suit, the lien is gone and you lose the ability to refile.
Can I file a mechanics lien on a public works project in California?
No. Mechanics liens cannot be recorded against public property. On public works projects, your remedy is a Stop Payment Notice served on the public entity (Cal. Civ. Code § 9350) or a claim against the contractor's payment bond. The procedures and deadlines differ significantly from private works lien law.
What does it cost to record a mechanics lien in California?
County recorder fees vary but generally run $15–$25 for the first page plus $3 per additional page, plus any applicable fees for non-standard document sizes. This is separate from the cost of preparing and serving the preliminary notice. Budget roughly $30–$50 for county recording fees alone.
Protect Your Lien Rights Before the Deadline Hits
California's lien law is unforgiving — miss the 20-day preliminary notice and you have nothing to file, no matter how much money you're owed. The window closes fast, especially when a Notice of Completion hits and your deadline drops from 90 days to 30.
LienFlash files your California 20-day preliminary notice in under 2 minutes using attorney-reviewed, state-compliant templates, sent via USPS Certified Mail with a Certificate of Mailing PDF you keep for your records. A single notice is $24.99. If you're running multiple jobs, the Pro plan covers 3 notices per month for $49.
Don't track deadlines manually across a stack of jobs. Use the free deadline calculator to see exactly where you stand on every active project, then file directly from the same screen.
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