New York Construction Lien Guide
New York mechanics lien law is governed by the New York Lien Law (Lien Law §§ 1–79-a).
If you provide labor, materials, equipment, or professional services that improve real property in New York and are not paid, this guide explains how to protect your lien rights.
Keep in mind that New York Mechanics Lien, Construction Lien and Claim of Liencan be used interchangeably.
LET’S LEARN THE BASICS OF NEW YORK CONSTRUCTION LIEN
⭐ Who Can File a Mechanics Lien in New York?
New York grants Construction lien rights to:
General contractors
Subcontractors
Sub-subcontractors
Material suppliers
Equipment rental companies
Laborers
Architects, engineers, surveyors, and other design professionals
New York Construction Lien rights apply to private commercial projects, private residential projects, and public improvement projects, but deadlines and procedures vary.
⭐ New York Lien Deadlines (Critical)
LIEN IT OR LOSE IT!
All New York mechanics lien deadlines are calculated from the claimant’s last date of furnishing labor, materials, equipment, or professional servicesto the project. This date is critical because it controls both the deadline to record the lien and the deadline to enforce it, and New York courts apply these deadlines strictly and without exception.
Missing any mechanics lien deadline in New York results in a complete loss of lien rights. The law does not allow extensions, grace periods, relation-back arguments, or equitable exceptions, even when the debt is undisputed or the property owner had actual notice of the claim.
Deadline #1 — File the New York Mechanics Lien
For private construction projects, a mechanics lien must be filed:
Within 8 months of last furnishing, or
Within 4 months of last furnishing if the project is a single-family dwelling
Missing this deadline results in a complete loss of lien rights.
Liens are filed with the County Clerk in the county where the property is located.
Deadline #2: Serve your New York Mechanics Lien
After filing, the lien must be served on the property owner.
Method:personal service or certified/registered mail
Deadline: within 5 days before or 30 days after filing, depending on method
Failure to properly serve the lien can invalidate it.
Deadline #3 — Enforce the New York Mechanics Lien
A New York mechanics lien must be enforced by filing a foreclosure action:
Within one (1) year from the date the lien is filed
If no action is filed within one year, the lien expires automatically, unless extended by court order.