Retainage · New Jersey

New Jersey retainage law: 30-day private release, 2% public cap (2026)

By Oussama Chicha, EditorUpdated Checked against primary sources · not yet reviewed by a licensed professionalFact-checked
Quick answer

New Jersey's Prompt Payment Act (N.J.S.A. 2A:30A-2) sets no cap on the private retainage percentage but makes retainage monies payable to the prime contractor within 30 calendar days of the billing date, with interest at prime plus 1% if late. On local public contracts over $100,000, N.J.S.A. 40A:11-16.3 withholds 2% of each partial payment and releases it within 45 days of the agreed final acceptance date.

Private work

New Jersey · Private workVerified 2026-09-22
Retainage cap
New Jersey's Prompt Payment Act regulates when retainage must be paid but sets no cap on the percentage that may be retained on a private project. 'Billing' is defined to include a 'request for release of retainage'.
Deadline
30 days
Approval and certification of the billing (which includes a request for release of retainage) by the owner or the owner's authorized approving agent; a billing is deemed approved and certified 20 days after the owner receives it unless the owner gives a written statement of the amount withheld and the reason.
What the statute says
If a prime contractor has performed in accordance with the provisions of a contract with the owner and the billing for the work has been approved and certified by the owner or the owner's authorized approving agent, the owner shall pay the amount due ... for each periodic payment, final payment or retainage monies not more than 30 calendar days after the billing date.
N.J.S.A. 2A:30A-2 (Prompt Payment Act), as amended by P.L.2006, c.96. · Archived copy of the official text, captured 2024-08-16

Public work

New Jersey · Public workVerified 2026-09-22
Retainage cap
2%
For local contracting units, where the contractor has agreed to the withholding of payments under N.J.S.A. 40A:11-16.1, 2% of the amount due on each partial payment is withheld pending completion. Applies to contracts over $100,000 for construction, reconstruction, alteration, repair or maintenance of a building, structure, facility or other improvement (N.J.S.A. 40A:11-16.2).
Deadline
45 days
Acceptance of the work: the final acceptance date agreed upon by the contractor and the contracting unit.
Statute
N.J.S.A. 40A:11-16.3 (Local Public Contracts Law).
What the official source says
2% of the amount due on each partial payment shall be withheld by the contracting unit pending completion of the contract.
N.J. Local Public Contracts Law and Regulations Reference Guide, Version 2.1, April 2024 (NJ Department of Labor / prepared in cooperation with DCA Division of Local Government Services), reproduces N.J.S.A. 40A:11-16.1 to 16.4 · retrieved 2026-09-22

Who this applies to

This page covers two New Jersey statutes that touch retainage, and a local public job can fall under both.

The Prompt Payment Act defines "owner" to include any public or governmental entity, so its interest on late retainage reaches public owners too [3].

What the rule says

New Jersey answers the two retainage questions separately. On private work, the Act puts no ceiling on the percentage and regulates timing: once the prime contractor has performed under the contract and the billing is approved and certified, the owner pays retainage monies no more than 30 calendar days after the billing date [3]. On a local public contract where the contractor has agreed to have payments withheld, the contracting unit keeps 2% of the amount due on each partial payment until completion, with no step-down [1], and releases all of it within 45 days of the final acceptance date agreed with the contractor, provided the contract has been completed as indicated [1].

How to comply

On a private job

On a local public job

Both clocks start from dates the parties control: the billing date, which the contract sets for periodic billings, and the final acceptance date agreed with the contracting unit.

What changed recently

Section 2A:30A-2 was amended by P.L.2006, c.96, approved September 1, 2006, which amended the original Act, P.L.1991, c.133 [3]. The public withholding rule in N.J.S.A. 40A:11-16.3 traces to L.1979, c. 464, s. 2, with amendments in 1991 (c. 434, s. 2) and 1999 (c. 440, s. 26) [1].

Related

Retainage laws: other states

Sources

  1. N.J. Local Public Contracts Law and Regulations Reference Guide, Version 2.1, April 2024 (NJ Department of Labor / prepared in cooperation with DCA Division of Local Government Services), reproduces N.J.S.A. 40A:11-16.1 to 16.4 (retrieved 2026-09-22)
  2. New Jersey Local Public Contracts Law and Regulation Reference Manual (NJ Department of Community Affairs, Division of Local Government Services, April 2014) (retrieved 2026-09-22)
  3. P.L.2006, c.96 (Prompt Payment Act, amending C.2A:30A-1 and C.2A:30A-2), New Jersey Legislature official session law (archived copy, captured 2024-08-16)

Changelog

  1. : Page published.
  2. : Dataset first published with 36 of 51 jurisdictions verified.