New York Notice of Mechanic's Lien — N.Y. Lien Law § 11 Filing & Service Guide (2026)
What Is the New York Notice of Mechanic's Lien
The New York Notice of Mechanic's Lien is the verified written document filed with a County Clerk to perfect a private-project mechanic's lien against real property under N.Y. Lien Law Article 2. Unlike states with separate preliminary notices and follow-up lien claims, New York combines the entire pre-lien preservation step into the filed notice itself. There is no New York preliminary notice on private projects — the Notice of Mechanic's Lien IS the lien.
Who May File a New York Notice
N.Y. Lien Law § 3 grants lien rights to contractors, subcontractors, laborers, materialmen, landscape gardeners, and nurserymen who perform labor or furnish materials with the consent or at the request of the owner, owner's agent, contractor, or subcontractor. Original contractors, sub-tier subs, and material suppliers all file the same Notice of Mechanic's Lien — there is no distinction in the filing form between tiers.
When the Notice Must Be Filed — § 10
The § 10 filing clock runs from the date the lienor last furnished labor or last delivered materials. The clock does not run from non-payment, project completion, or dispute. For commercial projects, the lienor has 8 months. For single-family residence projects, the lienor has 4 months — half the time. The 4-month rule applies whenever the property is used as a single-family residence, even on high-end Manhattan or Brooklyn renovations.
Required Content — § 9
Under § 9, the notice must state the lienor's name and address, the owner's name and lienor's interest, the name of the person who employed the lienor, the labor performed and materials furnished and the agreed price, the amount unpaid, the time of first and last items, and the property's address and adequate description. The notice must be verified by the lienor before a notary.
Where to File — County Clerk in the Property's County
Filing happens at the County Clerk's office in the county where the property is located. New York has 62 counties — including the five NYC County Clerks (New York County/Manhattan, Kings/Brooklyn, Queens, Bronx, Richmond/Staten Island), Nassau, Suffolk, Westchester, Erie (Buffalo), Monroe (Rochester), Onondaga (Syracuse), and Albany. Filing in the wrong borough produces a void lien.
Service on the Owner — § 11
After filing, § 11 requires the lienor to serve a copy of the filed notice on the owner within 5 days before or 30 days after filing. Service may be by personal delivery, certified mail with return receipt requested, or by leaving with a person of suitable age and discretion at the owner's residence or place of business. Section 11 service is not strictly jurisdictional but missed service is a defense in foreclosure.
Lien Duration and Renewal — § 17
Under § 17, a New York mechanic's lien is valid for 1 year from filing. The lienor must either commence Supreme Court foreclosure within the year or file a Notice of Extension before expiration. After two affidavit-based extensions, further extension requires a court order. Many otherwise valid New York liens are lost not in court but in calendar silence as the 1-year clock expires.
Owner Discharge by Bond — § 19(4)
Owners can immediately discharge a Notice of Mechanic's Lien from the property record by depositing cash or filing a bond equal to 110% of the lien amount with the County Clerk. The lien attaches to the bond — letting the owner refinance or sell unencumbered while the underlying dispute proceeds. Bond discharge is the most common owner remedy on disputed New York liens.
Frequently Asked Questions
What is the filing deadline for a New York Notice of Mechanic's Lien?
Under N.Y. Lien Law § 10, a Notice of Mechanic's Lien on a private project must be filed with the County Clerk within 8 months after the claimant's last item of work or last delivery of materials. For a single-family residence, the deadline is shortened to 4 months. The clock runs from actual last furnishing — not from non-payment or dispute.
Who can file a New York Notice of Mechanic's Lien?
N.Y. Lien Law § 3 grants lien rights to any contractor, subcontractor, laborer, materialman, landscape gardener, or nurseryman who performs labor or furnishes materials with the consent or at the request of the owner. New York does not require a preliminary notice on private projects — the filed notice itself is the lien.
What information must the New York notice contain?
Under § 9: name and address of lienor, name of owner and lienor's interest, name of person who employed the lienor, labor and materials plus agreed price, amount unpaid, time of first and last items, and property address and description. The notice must be verified before a notary.
How is a New York mechanic's lien served on the owner?
Under § 11, a copy of the filed notice must be served on the owner within 5 days before or 30 days after filing. Service may be by personal delivery, certified mail with return receipt requested, or by leaving with a person of suitable age and discretion at the owner's residence or place of business.
How long does a New York mechanic's lien last?
Under § 17, the lien is valid for 1 year from filing. The lien may be extended for one additional year by recording a Notice of Extension before the original year expires. After two affidavit-based extensions, further extension requires a court order.