Florida subcontractors, sub-subcontractors, and material suppliers on private projects must serve a Notice to Owner (NTO) no later than 45 days after first furnishing labor, materials, or services to preserve mechanics lien rights, under Fla. Stat. § 713.06(2)(c). The notice must be served on the property owner and, if applicable, the construction lender and general contractor. General contractors working directly under contract with the owner are exempt from the NTO requirement but must still record a Claim of Lien within 90 days of last furnishing. Failing to serve a timely NTO as a subcontractor or supplier is a complete bar to filing a valid mechanics lien on that project — meaning you lose your right to lien entirely, not just partially.
Does Florida Require a Notice Before Filing a Mechanics Lien?
Yes — Florida law requires subcontractors and suppliers to serve a Notice to Owner before they can file a mechanics lien on a private project. This requirement is established under Fla. Stat. § 713.06(2)(c), and it applies to any party who does not have a direct contract with the property owner. Without a valid, timely NTO on file, a mechanics lien filed by a subcontractor or supplier is legally unenforceable, regardless of how much money is owed.
The Notice to Owner is sometimes called a "preliminary lien notice" or a "Florida intent to lien notice" in practice, but the official statutory term is Notice to Owner. It does not start a lien — it preserves the right to file one later if payment is not received.
What Is the Florida Notice to Owner Deadline for Subcontractors?
The deadline is 45 days from the date you first furnish labor, materials, or services to the project. Under Fla. Stat. § 713.06(2)(c), the NTO must be served within that 45-day window. There is no grace period and no mechanism to cure a late notice after the fact.
A few critical points on the clock:
- The deadline runs from first furnishing, not from when you signed the contract. If you mobilized to the job site on day one and delivered materials, that is your start date.
- Preliminary site visits or bidding activity do not count. The 45-day clock starts when actual labor or materials are furnished to the project.
- There is no retroactive fix. If you miss the 45-day window, you cannot serve a late NTO and preserve lien rights from that point forward. Your lien rights for that project are extinguished.
This is not a forgiving statute. Florida courts have consistently held that strict compliance is required. Sending the notice on day 46 does not preserve partial rights — it preserves nothing.
Who Must Serve a Florida Notice to Owner?
Any party without a direct contract with the property owner must serve an NTO to preserve lien rights. This includes:
- Subcontractors (electrical, plumbing, HVAC, roofing, drywall, painting, concrete, framing)
- Sub-subcontractors (any party hired by a subcontractor rather than the GC)
- Material suppliers (lumber yards, electrical distributors, plumbing supply houses)
- Equipment lessors providing equipment used in the improvement
- Architects, engineers, and landscape architects who are not in direct contract with the owner
General contractors are exempt. A GC with a direct contract with the owner does not need to serve an NTO, but must still record a Claim of Lien within 90 days of last furnishing.
Owner-builders are also exempt if they are acting as their own general contractor, but this does not affect the subcontractor's obligation — subs working under an owner-builder still must serve the NTO.
The NTO requirement applies to private projects only. Public projects in Florida are governed by a separate framework — the Florida Public Construction Bond statute (Fla. Stat. § 255.05) — which involves serving a notice on the payment bond surety, not the property owner.
What Documents Are Required for a Florida Preliminary Notice?
Under Fla. Stat. § 713.06(2)(a), the Notice to Owner must include specific information to be legally valid. A deficient notice can be challenged and may not preserve lien rights.
Required content includes:
- Your name and address (the lienor serving the notice)
- The name and address of the person who hired you (the GC or the party you contracted with)
- The name and address of the property owner (as shown in the building permit or public records)
- A description of the real property sufficient to identify it (street address plus legal description)
- A general description of the labor, services, or materials you are providing
- The name and address of the construction lender, if any (Fla. Stat. § 713.13 requires the owner to disclose the lender's identity in the Notice of Commencement)
The Notice of Commencement (NOC), which the owner is required to record before construction begins under Fla. Stat. § 713.13, contains most of this information. Always pull the recorded NOC from the county property records before preparing your NTO — it gives you the owner's name, the legal property description, and the lender's identity.
How to Send a Preliminary Lien Notice in Florida
Florida law specifies the acceptable methods of service for the Notice to Owner under Fla. Stat. § 713.18. You cannot simply email it or drop it off — the service method matters for legal validity.
Accepted service methods:
- Certified mail, return receipt requested (the most commonly used and most defensible method)
- Personal delivery with a signed acknowledgment
- First-class mail with a certificate of mailing (acceptable but provides less documentation than certified mail)
In practice, USPS Certified Mail with Return Receipt is the standard. It creates a paper trail: a tracking number, a delivery confirmation, and a signed green card (or electronic return receipt) proving who received it and when.
USPS Certified Mail costs $4.85 as the base service fee in 2026, plus standard First-Class postage, according to the USPS Notice 123 Price List. Adding electronic Return Receipt adds $2.46. That is less than $10 total to protect thousands of dollars in lien rights.
Who to serve the notice on:
- The property owner (required)
- The general contractor (required if you are a sub-subcontractor or supplier to the GC)
- The construction lender (required if there is one identified in the NOC)
Keep proof of mailing for every copy sent. If a lien dispute ends up in court, your Certificate of Mailing and the signed return receipt are your evidence that the NTO was properly served.
Where to File the Notice to Owner Form in Florida
The Florida Notice to Owner is served on the parties, not filed with a government office. This is a common source of confusion. Unlike recording a Claim of Lien (which goes to the county clerk's office), the NTO is a direct notice to the owner, GC, and lender.
However, there is one important filing step: the Notice of Commencement must be recorded by the owner in the county where the property is located. You, as the subcontractor, need a copy of that NOC to correctly complete your NTO.
To get the NOC:
- Search the county property appraiser's or clerk's online records using the property address.
- The NOC is a public record and should be recorded before work begins.
- If you cannot locate it, you can request a copy from the general contractor — owners are required to post it at the job site.
Once your NTO is complete, serve it directly on the listed parties via certified mail. Keep your mailing receipts. That is the entire process.
What Happens If You Skip the Notice to Owner in Florida?
Skipping the NTO does not just weaken your lien — it eliminates it. Under Florida law, a subcontractor who fails to serve a timely Notice to Owner has no mechanics lien rights on that project, full stop.
This has real financial consequences. 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. Without a valid NTO, a Florida subcontractor who does not get paid has no lien remedy — only a breach of contract lawsuit, which is slower, more expensive, and harder to win against a property owner who may argue they owe the money to the GC, not to you.
The mechanics lien is your leverage. It attaches to the property itself, which means the owner cannot sell or refinance without resolving it. Strip that leverage by missing the NTO deadline, and you are left negotiating from a position of weakness.
That leverage also serves as a collection accelerant long before you ever file a lien. Many subcontractors report that a properly served NTO alone prompts faster payment — owners who know their property is potentially encumbered tend to move the money.
The math is stark: according to LienFlash pricing data, a single preliminary notice costs $24.99. If it preserves lien rights on a $15,000 subcontract that would otherwise go unpaid, that is a return on investment exceeding 60,000%. On a $75,000 contract, the return exceeds 300,000%.
Florida Subcontractor Notice Requirements on Private Projects: A Quick Reference
| Item | Detail |
|---|---|
| Governing statute | Fla. Stat. § 713.06(2)(c) |
| Who must serve | Subs, sub-subs, suppliers, equipment lessors (not in direct contract with owner) |
| Deadline | 45 days from first furnishing |
| Who to serve | Property owner, GC (if applicable), construction lender (if applicable) |
| Service method | Certified mail, personal delivery, or first-class mail with certificate of mailing |
| Where to file | Served directly on parties — not filed with the county |
| Project type | Private projects only (different rules apply to public projects) |
| Consequence of missing | Complete loss of mechanics lien rights on that project |
Frequently Asked Questions
Does the Florida Notice to Owner need to be notarized?
No. The Notice to Owner does not need to be notarized under Florida law. It must contain the required statutory information under Fla. Stat. § 713.06(2)(a), be served on the correct parties, and be delivered via an approved method — but notarization is not required. The Claim of Lien, which you file later if unpaid, does require a sworn statement under Fla. Stat. § 713.08(3).
Can I serve the NTO by email in Florida?
No. Email is not an approved service method under Fla. Stat. § 713.18. Acceptable methods are certified mail with return receipt, personal delivery with acknowledgment, or first-class mail with a certificate of mailing. Email service has no legal effect for purposes of the Notice to Owner requirement.
What if I started work and forgot to serve the NTO? Can I serve it late?
You can still serve the NTO after day 45, but it will not preserve lien rights for work already furnished before the 45-day window closed. A late NTO is legally ineffective for any labor or materials furnished more than 45 days before service. If you are still actively furnishing and have not passed 45 days from first furnishing, serve the notice immediately — every day matters.
Does the Notice to Owner apply to public projects in Florida?
No. The NTO requirement under Fla. Stat. § 713.06 applies to private projects only. For public projects, Florida's Public Construction Bond Law (Fla. Stat. § 255.05) applies. On public jobs, you must serve a notice on the payment bond surety within 90 days of last furnishing, and direct payment cannot exceed the bond amount.
Do I need a Notice to Owner if I have a direct contract with the property owner?
No. If you have a direct written contract with the property owner, you are considered a "lienor in privity" and are not required to serve an NTO. This exemption typically applies to general contractors, but it can also apply to specialty contractors hired directly by the owner. Confirm the contract structure before assuming you are exempt.
What is the difference between a Notice to Owner and a Claim of Lien in Florida?
The Notice to Owner is a preliminary notice served within 45 days of first furnishing — it preserves the right to lien but does not itself create an encumbrance on the property. The Claim of Lien is the actual lien document recorded with the county clerk's office. The Claim of Lien must be recorded within 90 days of last furnishing under Fla. Stat. § 713.08. You cannot file a valid Claim of Lien unless you first served a timely NTO.
What if the general contractor gives me incorrect owner information?
Serve the NTO on the best information you have, and document your due diligence. Pull the recorded Notice of Commencement from county records — it is the authoritative source for the owner's name and address. If the GC provides different information than what appears in the NOC, the NOC controls. Courts have generally held that a good-faith effort to serve the correct parties is required; relying solely on unverified information from the GC without checking public records can be a problem.
Can I send one NTO to cover multiple projects?
No. A Notice to Owner is project-specific. Each project requires its own NTO, served separately, with the correct property description, owner, and contracting party for that specific job. Filing a single NTO intended to cover multiple addresses or multiple contracts has no legal effect under Florida law.
Protect Your Lien Rights Today
The 45-day clock starts the moment you set foot on a Florida job site. Missing that deadline costs you every dollar of lien protection on that project — no appeals, no exceptions. LienFlash generates attorney-reviewed, Florida-compliant NTO forms and sends them via USPS Certified Mail with a Certificate of Mailing PDF in about two minutes.
Start filing your Florida Notice to Owner at /signup — or use the free lien deadline calculator at /tools/lien-deadline-calculator to find your exact 45-day cutoff date based on your first-furnishing date.