Florida Notice to Owner Deadline Calculator
Florida subcontractors and material suppliers must serve a Notice to Owner within 45 calendar days of first furnishing labor or materials on a construction project, per Fla. Stat. § 713.06. Missing this deadline is a complete defense to enforcement of a mechanics lien — meaning your lien rights on that project are permanently lost. This free calculator tells you exactly when your deadline falls based on your first day of work. Enter your first furnishing date below to see your specific deadline date and how many days you have remaining.
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How the Florida 45-Day Deadline Works
Florida Statutes § 713.06(2)(a) requires that any lienor who is not in privity with the property owner must serve a Notice to Owner before the lienor can enforce a mechanics lien. The notice must be served on the owner, the contractor (if any), and any sureties before commencing or not later than 45 days after commencing to furnish labor or materials.
The 45 days are CALENDAR days, not business days. Weekends, holidays, and weather days all count. The clock starts the day you first physically deliver labor or materials to the job site — not the day you signed the contract or sent your first invoice.
Florida courts have consistently held this deadline as strict. If Day 45 falls on a Saturday, Sunday, or legal holiday, the deadline does NOT extend to the next business day. You must serve before midnight on Day 45 regardless of what day of the week it falls on.
Who Must File a Florida Notice to Owner
Any lienor not in direct privity with the owner must serve a Notice to Owner to preserve lien rights. This includes:
- Subcontractors who contract with a general contractor
- Sub-subcontractors who contract with subcontractors
- Material suppliers who furnish materials to subcontractors or general contractors
- Equipment lessors who lease equipment to a contractor working on the project
- Laborers employed by a contractor (with limited exceptions)
General contractors who contract directly with the owner do NOT need to send an NTO — they are in privity with the owner and have direct contract claims.
What Happens If You Miss the Deadline
Florida Statutes § 713.06(2)(a) is explicit: "The failure to serve the notice... is a complete defense to enforcement of a lien by any person."
"Complete defense" means your lien rights are permanently lost on that project. No partial recovery. No extension. No exception for "I tried" or "I didn't know." Florida courts have upheld this strictly in cases where contractors filed on Day 46 and lost lien rights on hundreds of thousands of dollars of completed work.
Slow payments cost the U.S. construction industry an estimated $280 billion in 2024, according to Rabbet's 2024 Construction Payments Report — and a missed Florida NTO deadline means you have no mechanics lien leverage to collect the portion owed to you.
Frequently Asked Questions
What is the Florida Notice to Owner deadline?
Florida subcontractors and material suppliers must serve a Notice to Owner within 45 days of first furnishing labor or materials to a construction project, per Florida Statutes § 713.06. This is a calendar-day count — weekends and holidays are included.
What happens if I miss the 45-day Florida NTO deadline?
Florida Statutes § 713.06(2)(a) states that failure to serve the Notice to Owner is a complete defense to enforcement of a mechanics lien. In practical terms, you lose all lien rights on that project — no exceptions, no partial protection.
When does the 45-day clock start in Florida?
The clock starts on the day you first furnish labor, services, or materials to the project — not the day you sign the contract, not the day you bid the job, not the day you send the first invoice. The first physical day of work on site is Day 1.
Who must send a Notice to Owner in Florida?
Any lienor who does NOT have a direct contract with the property owner must serve a Notice to Owner. This includes subcontractors, sub-subcontractors, material suppliers, equipment lessors, and laborers who contract with someone other than the owner.
Who must receive the Notice to Owner in Florida?
The owner, the contractor (if any), and any sureties on a payment bond. The names and addresses are typically found in the Notice of Commencement that the owner files with the county clerk before construction begins.
How must the Florida NTO be delivered?
Florida law requires service by registered or certified mail with return receipt, by personal delivery (with a written confirmation), or via overnight courier. Regular first-class mail or email is NOT sufficient. LienFlash sends every notice via USPS Certified Mail with Return Receipt as standard practice.
Does the deadline change for residential vs commercial projects?
The 45-day deadline applies to both. However, on owner-occupied single-family residences, additional disclosure requirements apply under Florida Statutes § 713.015 (the "Construction Lien Law" notice that must be included in the contract).
How much does it cost to send a Florida Notice to Owner with LienFlash?
A single Notice to Owner through LienFlash costs $24.99 and includes attorney-reviewed Florida-compliant form generation, USPS Certified Mail with Return Receipt, and a Certificate of Mailing PDF as proof of service. No subscription required for a single notice.
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