New Jersey mechanics’ lien and bond deadlines
Work on Private Property
New Jersey lien deadline
Based on the general 90-day period from last furnishing. Exceptions apply — treat this as a planning estimate, not legal advice.
Filing deadline
Commercial: lodge the Construction Lien Claim with the clerk of each county where the property sits within 90 days of the claimant's last work or material delivery. Residential: 120 days from last furnishing, but also no later than 10 days after receiving the arbitrator's determination. Written contract signed by the party charged is a prerequisite to any lien.
Notice prerequisites
No notice is required before work starts on any New Jersey job. On residential work, a lien requires an extra step first: within 60 days after your last work or delivery, lodge a Notice of Unpaid Balance and Right to File Lien with the county clerk and serve it on the owner and affected contractors. Within 10 days after lodging it, serve a demand for expedited arbitration with a copy of the notice and an affidavit that it was lodged (N.J.S.A. 2A:44A-21); an arbitrator must validate the claim (award due within 30 days) before the lien can be lodged. On commercial work, a Notice of Unpaid Balance is optional and is used only to protect priority against later buyers and lenders.
Service on the owner
Serve a clerk-stamped copy on the owner (or tenant/community association) and every affected contractor or subcontractor within 10 days after lodging, personally or by simultaneous certified and ordinary mail to the last known address. Service follows lodging; a timely-lodged but late-served lien survives unless the unserved party shows material prejudice.
Enforcement
Foreclosure suit in Superior Court of the property's county within 1 year of the claimant's last furnishing; the deadline compresses to 30 days if the owner serves a written demand to sue. Claimant must file a notice of lis pendens with the county clerk when suit starts. Missing either deadline kills the lien.
N.J.S.A. 2A:44A-1 to -38 (Construction Lien Law); Municipal Mechanics' Lien Law, N.J.S.A. 2A:44A-125 to -148 (public work)
N.J.S.A. 2A:44A — Construction Lien Law — published by the New Jersey Office of Legislative Services.
Work on Public Property
No mechanics lien attaches to public property in any state. On a government job the remedy is the prime contractor’s payment bond, and it runs on its own act with its own deadlines — not the lien deadlines above.
- Who — Beneficiary notice: the contractor furnishing the bond. Statement of amount due: the sureties.
- When — Beneficiary notice is due BEFORE YOU START WORK — no day count. This is the one people miss.
- How — Certified mail or any method giving proof of delivery. N.J.S.A. 2A:44-145.
- If late — NOT forfeiture — the claim is truncated forward instead. Read below; the common paraphrase is wrong.
- Sue by — A window, not a period — read below.
Is there a bond at all?
There is no flat threshold; instead there is a discretionary WAIVER and a discretionary reduction. State contracts: the Director of the Division of Building and Construction or designated State departments may '(a) establish for that contract the amount of the bond at any percentage, not exceeding 100%, of the amount bid ... and (b) waive the bond requirement of this section entirely if the contract is for a sum not exceeding $200,000' (2A:44-143(a)(2)). Contracting units and school districts: the same power, with waiver 'if the contract is for a sum not exceeding $100,000' (2A:44-143(a)(3)). The default in 2A:44-144 is 'an amount equal to 100 per cent of the contract price', but 2A:44-143(a)(2)(a)/(3)(a) let the public body set any lower percentage based on its risk assessment - so never assume the penal sum equals the contract price.
Who can claim on it
Only 'beneficiaries', defined in 2A:44-143(a)(1) as 'subcontractors or material suppliers in contract with the contractor, or subcontractors or material suppliers in contract with a subcontractor to the contractor, which class of persons shall be the beneficiaries of the payment and performance bond.' Two tiers below the prime and no further: a claimant whose customer is a second-tier subcontractor is outside the class. 2A:44-143(b) reinforces the closure: 'Only the obligee named on the bond, and any subcontractor performing labor or any subcontractor or materialman providing materials for the construction, erection, alteration or repair of the public building, work or improvement for which the bond is required pursuant to this section, shall have any claim against the surety under the bond.' The same subsection excludes tort exposure: 'A surety's obligation shall not extend to any claim for damages based upon alleged negligence that resulted in personal injury, wrongful death, or damage to real or personal property, and no bond shall in any way be construed as a liability insurance policy.'
What notice you owe
TWO separate writings, owed by different populations. (1) The BENEFICIARY NOTICE is owed only by a beneficiary 'who does not have a direct contract with the contractor furnishing the bond' (2A:44-145). A first-tier sub or supplier in privity with the prime owes it not at all. (2) The STATEMENT OF THE AMOUNT DUE is owed by EVERY beneficiary, privity or not, and it is the true condition of suit.
Who it goes to
Beneficiary notice: the contractor furnishing the bond. Statement of the amount due: by the first sentence of the second paragraph, 'the sureties on the bond required by this article'; but the no-action clause in the third paragraph measures the waiting period from 'provision to the sureties AND THE CONTRACTOR of the statement of the amount due to him'. The two paragraphs do not line up - serve the contractor as well as the sureties, or the 90-day clock arguably never starts.
By when
Beneficiary notice: no day count at all - it is due 'prior to commencing any work'. It runs BEFORE the job, which is why it is missed. Statement of the amount due: 'at any time before the expiration of one year from the last date upon which such beneficiary shall have performed actual work or delivered materials to the project, in the case of a material supplier'. Practically it is due far sooner than a year, because of the 90-day no-suit period nested inside the same one-year bar - see suitDays.
How it must be served
Beneficiary notice: 'by certified mail or otherwise, provided that he shall have proof of delivery of same.' The method is open but PROOF OF DELIVERY is mandatory - ordinary mail with no return receipt does not satisfy the statute even if it arrives. No method is prescribed for the statement of the amount due.
What it has to say
Beneficiary notice: written notice 'that said person is a beneficiary of the bond' - that is the whole of it. No amount, no description, no project identification is required by the statute. Statement of the amount due: 'a statement of the amount due to him' - no contents enumerated beyond the amount.
If the notice is late, or never given
THIS IS WHERE THE COMMON PARAPHRASE IS WRONG. Missing the beneficiary notice does NOT forfeit the bond claim. The statute truncates it forward instead: 'If a beneficiary fails to provide the required written notice, the beneficiary shall only have rights to the benefits available hereunder from the date the notice is provided.' A beneficiary who realizes mid-job that it never sent the notice should send it immediately, because everything furnished from that date forward is protected. By contrast, failure to furnish the statement of the amount due in time for the 90-day waiting period to expire inside the one-year bar does forfeit the claim outright.
When the suit clock starts
The claimant's own last day: 'the last date upon which such beneficiary shall have performed actual work or delivered materials to the project.' Both the outer bar and the deadline for the statement to sureties run from that date. Nothing runs from completion or acceptance of the project.
How long you have to sue
A window, not a period. 'No action shall be brought against any of the sureties on the bond required by this article until the expiration of 90 days after provision to the sureties and the contractor of the statement of the amount due to him, but in no event later than one year from the last date upon which such beneficiary shall have performed actual work or delivered materials to the project.' The 90-day wait is nested inside the absolute one-year bar, so the statement must be served no later than roughly nine months after last furnishing for any suit to be possible at all.
The trap
The 90-day no-suit period sits inside the absolute one-year bar, so a beneficiary who serves its statement of amount due later than about nine months after its last day on the job can never sue the surety in time, no matter how promptly it then files.
The act itself
No popular name; practitioners call it the public works 'Bond Act'. The article requires a single combined PAYMENT AND PERFORMANCE bond, and the claimant class is a defined term - 'beneficiaries' - rather than the Miller Act's tier language.
Where this comes from
N.J.S.A. 2A:44-143 (additional bond; who are beneficiaries; surety standards; waiver), 2A:44-144 (amount and condition of the bond; deposit), 2A:44-145 (beneficiary notice; statement to sureties; time for action), 2A:44-147 (surety qualification, referenced but not read in full).
N.J.S.A. 2A:44A — Construction Lien Law — published by the New Jersey Office of Legislative Services.
Statutory summary as of 30 July 2026. Not legal advice; confirm with a lawyer licensed in New Jersey.