What Is a Mechanics Lien in New Jersey — Complete 2026 Guide
✓ Verified against New Jersey statutes · Reviewed August 2026 · By Michael Evan — Founder · 50 states · 799 rules
New Jersey mechanics lien deadlines at a glance
Preliminary Notice
NUB — Notice of Unpaid Balance
Mechanics Lien
90 days — From last date of furnishing
Enforcement
1 year — From filing
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New Jersey 90-Day Filing Deadline and Residential vs. Commercial Distinction
Under N.J. Stat. § 2A:44A-6, all eligible claimants have 90 days from the last date of furnishing labor or materials to file a lien claim with the County Clerk in the county where the project is located. On commercial projects, all tiers — general contractors, subcontractors, sub-subcontractors, and material suppliers — have lien rights. On residential projects, only the contractor with a direct contract with the homeowner may file a mechanics lien under N.J. Stat. § 2A:44A-3(b). Subcontractors and suppliers on residential projects have no lien rights against the property and must pursue their claims contractually against the party who hired them.
The New Jersey Lien Fund — Critical Concept for Subcontractors
New Jersey's most distinctive feature is the lien fund. Under N.J. Stat. § 2A:44A-9, a subcontractor's or supplier's mechanics lien attaches only to the unpaid balance the property owner owes the general contractor at the time the lien is filed — not to the full value of the property. If the owner has already paid the GC in full before the sub files, the lien fund may be zero and the subcontractor's lien has no practical recovery value against the property. This makes timing critical: subcontractors should file as soon as nonpayment is apparent, not at the end of the 90-day window, to maximize the remaining lien fund.
10-Day Post-Filing Service Requirement
After filing the lien claim with the County Clerk, the claimant must serve a copy on the property owner and on the person against whom the claim is asserted within 10 days under N.J. Stat. § 2A:44A-6. This is one of the shortest post-filing service windows in the country. Service by certified mail with return receipt requested satisfies the requirement. Missing the 10-day service deadline can render the entire lien defective.
New Jersey 1-Year Enforcement Deadline
Under N.J. Stat. § 2A:44A-14, a mechanics lien claimant must file a lawsuit to enforce the lien within 1 year of the County Clerk filing date. If no enforcement action is commenced within 1 year, the lien expires automatically. Enforcement actions are filed in the Superior Court of the county where the property is located. The 1-year clock runs from the filing date — not from last furnishing.
Frequently Asked Questions
How long do I have to file a mechanics lien in New Jersey?
All eligible claimants have 90 days from last furnishing to file a lien claim with the County Clerk under N.J. Stat. § 2A:44A-6. After filing, the lien must be served on the owner within 10 days.
Can subcontractors file mechanics liens in New Jersey?
On commercial projects, yes — all tiers can file. On residential projects, only the contractor with a direct contract with the homeowner has lien rights under N.J. Stat. § 2A:44A-3(b).
What is the lien fund in New Jersey?
The lien fund is the unpaid balance the owner owes the GC at the time the sub's lien is filed. Under N.J. Stat. § 2A:44A-9, a subcontractor's lien is capped at this amount — not the full property value.
How long do I have to enforce a New Jersey mechanics lien?
Under N.J. Stat. § 2A:44A-14, you must file suit within 1 year of the County Clerk filing date or the lien expires automatically.