Preliminary Notice: What It Is and Why Every Sub Should Send One
Last updated: July 2025
A preliminary notice is a written document a subcontractor, material supplier, or equipment lessor sends near the start of a project to preserve their right to file a mechanics lien if they go unpaid. Most states require it — and in states like California (Cal. Civ. Code § 8200), Florida (Fla. Stat. § 713.06), and Arizona (A.R.S. § 33-992.01), failing to send one is a complete bar to lien rights, no matter how much work you've done or how clearly you're owed money. Deadlines range from 20 days after first furnishing in California and Arizona to 45 days in Florida. The notice goes to the property owner, general contractor, and construction lender. Miss it, and your only option left is an attorney and a lawsuit — if that.
What Exactly Is a Preliminary Notice?
A preliminary notice is a formal written notification that tells the property owner and general contractor you are working on their project and intend to preserve your right to payment. It is not a lien. It is not an accusation. It is not a sign that you expect trouble. It is a legally required administrative step that unlocks your ability to file a mechanics lien later if a payment dispute arises.
Think of it like registering your truck before you drive it. You are not registering it because you plan to get in an accident — you are registering it because that is the rule, and without it, you lose your protection.
The notice identifies who you are, what work or materials you are providing, and approximately how much it is worth. It gives the property owner visibility into who is working on their project. In exchange, you preserve the right to cloud their title if you don't get paid.
Who Is Required to Send a Preliminary Notice?
In most states, any party who does not have a direct contract with the property owner must send a preliminary notice. That means:
- Subcontractors (electrical, plumbing, HVAC, drywall, roofing, painting, concrete — all of you)
- Material suppliers (lumber yards, equipment dealers, fabricators)
- Equipment lessors (crane rental, scaffold suppliers)
- Sub-subcontractors (subs hired by another sub)
General contractors with a direct contract with the owner are often exempt — or have different notice requirements — because the owner already knows who they are.
The specific rule varies by state. In California, under Cal. Civ. Code § 8200, any claimant who does not have a direct contract with the owner must serve a 20-day preliminary notice. In Florida, under Fla. Stat. § 713.06(2)(c), every lienor except the general contractor must serve a Notice to Owner within 45 days of first furnishing labor, services, or materials. In Arizona, under A.R.S. § 33-992.01, preliminary notice must be served within 20 days of first furnishing.
If you are a sub, assume you need to send it. Check your specific state's statute, but the default answer is yes.
Why Does a Preliminary Notice Matter So Much?
Without a preliminary notice in states that require one, you cannot file a mechanics lien. Full stop.
That matters because a mechanics lien is the single most powerful collection tool a subcontractor has. It attaches to the property itself, which means the owner cannot sell or refinance without resolving your claim. Lenders hate liens on title. Owners hate liens on title. A lien gets you paid when nothing else does.
According to Rabbet's 2024 Construction Payments Report, 82% of contractors face payment waits of over 30 days, up from 49% just two years earlier. That same report found slow payments cost the U.S. construction industry an estimated $280 billion in 2024, adding roughly 14% to total construction spending. Payment problems are not rare. They are the norm in this industry. A preliminary notice is what keeps you at the table when payment falls apart.
Without it, your options when a GC or owner stiffs you are: call and beg, send a demand letter that gets ignored, or pay an attorney to sue — a process that can take a year and cost you more in legal fees than you recover.
What Are the Deadlines by State?
Deadlines vary significantly by state. Here are the rules for the states LienFlash currently covers:
California — 20 days from first furnishing labor or materials (Cal. Civ. Code § 8200). Late service limits lien protection to work performed in the 20 days before the notice was served.
Florida — 45 days from first furnishing (Fla. Stat. § 713.06(2)(c)). The clock starts the day you first set foot on the job or deliver the first materials — not the day your contract is signed.
Arizona — 20 days from first furnishing (A.R.S. § 33-992.01). One of the strictest states. Miss the window and lien rights are gone.
Nevada — For general contractors, Notice of Right to Lien must be served within 31 days of first furnishing (NRS § 108.245). Subcontractors have the same 31-day window.
Washington — Notice of Right to Claim Lien must be served within 60 days of first furnishing labor, professional services, materials, or equipment (RCW § 60.04.031).
Oregon — Notice of Right to a Lien must be served within 8 business days of first furnishing (ORS § 87.021). Oregon has one of the shortest windows in the country — if you are working in Oregon, you need to send this immediately.
Texas — Month-2 and Month-3 notice deadlines apply; the rules differ based on whether the project is residential or commercial and whether you are a sub or sub-sub (Tex. Prop. Code § 53.056). Texas notice rules are the most complex in the country.
New Mexico — Preliminary Notice must be filed with the county clerk within 60 days of first furnishing (NMSA § 48-2-2.1).
Use the lien deadline directory page to look up your state's exact deadline and start date.
Not sure when your clock started? The lien deadline calculator will calculate your exact deadline based on your first-furnishing date and state.
What Information Goes in a Preliminary Notice?
A properly drafted preliminary notice typically includes:
- Your name and address (the claimant)
- The name and address of the person who hired you (the GC or upstream sub)
- The name and address of the property owner
- The address or legal description of the project
- A general description of the work or materials you are furnishing
- An estimated value of the contract or work to be performed
- The name and address of the construction lender, if known
Some states have statutory forms. California has a specific form required by Cal. Civ. Code § 8202. Florida's Notice to Owner has prescribed statutory language under Fla. Stat. § 713.06(2)(a). Using the wrong form — or omitting required language — can invalidate the notice entirely.
This is exactly why attorney-reviewed templates matter. A prelim that's missing the right statutory language is the same as no prelim at all when you're standing in front of a judge.
How Is a Preliminary Notice Delivered?
Delivery method is not optional — it is part of what makes the notice legally valid.
Most states require service by one of the following methods:
- Certified Mail (USPS Certified Mail with tracking is the industry standard)
- Registered Mail
- First-Class Mail with Certificate of Mailing
- Personal delivery (in some states)
USPS Certified Mail is the default choice for most subcontractors because it creates a timestamped, trackable record of delivery. As of 2026, USPS Certified Mail costs $4.85 as the base service fee, plus standard First-Class Mail postage, according to the USPS Notice 123 Price List. Adding electronic Return Receipt costs $2.46; a physical green card Return Receipt adds $4.10.
The certificate of mailing — the receipt that proves you sent it on a specific date — is what protects you in a dispute. If an owner claims they never got your notice, you have documentation proving it was sent. In California, service is deemed complete on the date of mailing, not the date of receipt (Cal. Civ. Code § 8116). That certificate is your proof.
For the California-specific rules on how to serve a 20-day preliminary notice, see: California preliminary notice resources
Does Sending a Preliminary Notice Hurt Your Relationship With the GC?
No — and this concern stops too many subs from filing when they should.
A preliminary notice is not an accusation. It is a legal formality, the same way a GC pulling a permit is not an accusation that the work will fail inspection. Experienced GCs see prelims every day. They know the paperwork. They expect it.
The subs who damage relationships are the ones who skip the prelim, don't get paid, then show up six months later threatening a lien after the project has closed. That blindsides everyone. Sending a prelim upfront is transparent, professional, and signals that you run a real business.
In 2024, preliminary notices were filed on construction projects valued at over $22.7 billion in the United States, according to Lienser via DocJoist's Construction Payment Statistics report. Filing prelims is standard practice across the industry.
If a GC tells you not to send a preliminary notice, that is a red flag. It is not a reason to comply.
What Does It Actually Cost to File a Preliminary Notice?
A single LienFlash preliminary notice costs $24.99. That includes an attorney-reviewed, state-compliant form, USPS Certified Mail with Certificate of Mailing, and a PDF proof of service delivered to your account.
Consider the math: if that $24.99 notice preserves your lien rights on a $15,000 unpaid subcontract, that is a 60,000% return on the cost of filing. On a $75,000 contract, it exceeds 300,000% (LienFlash pricing applied to typical subcontract values, 2026).
The cost of not filing is your entire contract value, plus whatever you spend trying to collect without leverage.
LienFlash Pro Monthly is $49 per month and includes 3 preliminary notices plus deadline alerts across active jobs — built for subs running multiple projects at once.
Frequently Asked Questions
Is a preliminary notice the same as a mechanics lien?
No. A preliminary notice is a prerequisite to filing a mechanics lien, not the lien itself. The notice is sent near the start of a project to preserve your rights. A mechanics lien is filed after a payment dispute arises, typically after the project is complete or after you've been unpaid for a defined period. You cannot file a valid lien in most states if you skipped the preliminary notice.
What happens if I miss the preliminary notice deadline?
In most states that require a preliminary notice, missing the deadline is a complete bar to mechanics lien rights. In California, late service limits your lien protection to work done in the 20 days before the notice was served. In Florida and Arizona, missing the deadline entirely eliminates lien rights. Your remaining options are demand letters, collections, or litigation — none of which carry the leverage of a lien.
Do I need to send a preliminary notice on every job?
Yes — if your state requires it and you do not have a direct contract with the property owner, send it on every job. Many subs make the mistake of skipping it on projects where they trust the GC or where the job seems small. Payment problems are often unexpected. The notice costs less than $25 and takes two minutes. There is no practical reason to skip it.
Does a preliminary notice need to be notarized?
Generally, no. Most state statutes do not require notarization of a preliminary notice. What they do require is proper delivery — certified mail, registered mail, or another method specified by the statute. Check your specific state's requirements, but notarization is not a standard requirement.
Who receives the preliminary notice?
The required recipients vary by state, but typically include the property owner, the general contractor, and the construction lender (if any). In California, all three must receive the notice under Cal. Civ. Code § 8200. In Florida, the Notice to Owner goes to the property owner and the GC. Always confirm the recipients required by your state's statute.
Can I send a preliminary notice after work has already started?
Yes, but the protection is retroactive only in some states. In California, if you send the notice late, it only protects work performed in the 20 days before you served it — earlier work is unprotected. In states like Arizona and Florida, late notice may eliminate lien rights entirely. The answer is always: send it as early as possible, ideally before or on the first day of work.
Do I need a separate preliminary notice for each project?
Yes. A preliminary notice is project-specific. Each job requires its own notice sent to the specific owner, GC, and lender on that project. A single notice does not cover multiple projects, even if they are with the same GC.
What is the difference between a preliminary notice and a Notice to Owner?
They are the same concept with different names. "Preliminary notice," "20-day notice," "Notice to Owner," "Notice of Right to Lien," and "prelim" all refer to the pre-lien notice required at the start of a project. The name differs by state. Florida calls it a Notice to Owner. Washington calls it a Notice of Right to Claim Lien. Oregon calls it a Notice of Right to a Lien. The purpose — preserving your lien rights — is the same everywhere.
Protect Your Lien Rights Today
Every day you work on a job without a filed preliminary notice is a day your lien rights are at risk. The notice takes two minutes with LienFlash. You enter the project details, and LienFlash generates an attorney-reviewed, state-compliant form and sends it via USPS Certified Mail with a Certificate of Mailing PDF delivered to your account.
Don't wait until a payment problem shows up to find out you can't do anything about it.