Prompt payment

New Mexico prompt payment act and retainage rules

New Mexico's Prompt Payment Act applies to private owners, state agencies, and local public bodies (the Department of Transportation is excluded). Owners pay undisputed requests in 21 days, subs get paid in 7, late money earns 1.5 percent a month, and the act says owners and contractors may not retain or hold back amounts owed for work performed.

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New Mexico's prompt payment act (NMSA 1978, §§ 57-28-1 to 57-28-11) is one of the most contractor-friendly in the country. It covers private owners, state agencies, and local public bodies, with the Department of Transportation carved out of the definition of owner (§ 57-28-2). Owners must pay an undisputed request within 21 days, contractors and subs pay down the chain within 7 days of being paid, and late amounts earn 1.5 percent per month. The headline for anyone used to holding retainage: § 57-28-5(E) says an owner, contractor, or subcontractor shall not retain, withhold, hold back, or in any other manner not pay amounts owed for work performed.

New Mexico payment and retainage rules at a glance
RulePrivate workPublic work (state agencies and local public bodies)
Who is coveredAny person who is an owner; residential property with four or fewer dwelling units excluded (§ 57-28-3)State agencies and local public bodies; Department of Transportation excluded (§ 57-28-2)
Owner pays prime21 days after receiving an undisputed request for payment (§ 57-28-5(A))21 days; a local public body may take up to 45 days when grant money funds the job and the contract and plans say so (§ 57-28-5(B))
Bad invoice noticeOwner must notify the sender within 7 days of receipt (§ 57-28-5)Same
Prime pays sub7 days after receiving payment (§ 57-28-5(C))Same
Late interest1.5 percent of the undisputed amount per month or fraction of a month (§ 57-28-5)Same
RetainageOwners, contractors, and subs shall not retain or hold back amounts owed for work performed (§ 57-28-5(E))Same
Final payment10 days after certification of completion, on delivery of releases and proof of completion (§ 57-28-8)Same
Attorney feesCourt may award costs and reasonable attorney fees (§ 57-28-11)Same

The 21-day owner clock and the 7-day flow-down

The trigger is an undisputed request for payment. If the owner thinks the invoice is not proper, it has to tell the sender within 7 days of receiving it, and the 21 days then wait for the corrected request. Silence past day 7 makes it hard for an owner to argue later that the pay app was defective. Interest starts on the 22nd day after payment was due.

Downstream, the contractor pays its subs, and each sub pays its own subs, within 7 days of receiving payment from the owner, contractor, or sub above it. Interest at the same 1.5 percent per month runs from the eighth day. The statute keys the sub's clock to receipt of payment, so it works like a pay-when-paid timeline. Whether a pay-if-paid clause could block payment entirely is not addressed in the sections cited here, so do not assume one will hold up or fail without a lawyer's read.

Here is the math on a real-looking job. A framing sub bills $86,000 on a private apartment project in Albuquerque (well over four units, so the act applies). The owner pays the GC on day 20. The GC pays the framer on day 19 after that, 12 days late. At 1.5 percent per month for a fraction of a month, that is $1,290 in interest on the undisputed amount, enough to make most GCs pay on time.

Retainage in New Mexico

Many states simply cap retainage at a percentage. New Mexico's act goes further. Section 57-28-5(E) says that when making payments, an owner, contractor, or subcontractor shall not retain, withhold, hold back, or in any other manner not pay amounts owed for work performed. The statute text cited here does not use the word retainage, but the plain effect is that routine percentage holdbacks on work performed run against the act on covered jobs. Owners can still dispute work that is defective or incomplete, because the payment duty attaches to undisputed requests.

  • Do not copy an out-of-state subcontract form with a standard 10 percent retainage clause onto a New Mexico job without checking it against § 57-28-5(E).
  • Final payment: under § 57-28-8, any amounts remaining due are paid 10 days after certification of completion, once the contractor or sub delivers a properly executed release and certified voucher, any required release of claims and liens (with stated exceptions), and proof of completion.
  • Care of work: material and work covered by partial payments become the owner's property, but the contractor and subs stay responsible for protecting them until the owner takes occupancy or use (§ 57-28-7).
  • Creditor protection: a creditor cannot garnish or levy on progress payments owed to someone who furnished labor or material on the job (§ 57-28-5(D)).

Public owners, grant money, and NMDOT

State agencies and local public bodies are owners under the act, so a county or school district owes the same 21-day payment. The one stretch allowed is for local public bodies using grant money: they may pay within 45 days of an undisputed request if the contract says so in a clear and conspicuous way and each page of the plans, including bid and construction plans, carries a Notice of Extended Payment Provision stating the number of days. Look for that legend on the plan sheets of any city or county bid. The Department of Transportation is excluded from the definition of owner, so highway work runs on NMDOT's own contract terms.

Late payment is also a lien and licensing question. Keep an eye on the New Mexico mechanics lien deadlines, and for public jobs the New Mexico prevailing wage rules and license requirements. Smart Business Automator tracks each request's received date and due date and shows interest owed on anything past due, as part of construction accounts receivable automation.

Frequently asked questions

Does New Mexico allow retainage on construction contracts?

The Prompt Payment Act says an owner, contractor, or subcontractor shall not retain, withhold, hold back, or otherwise not pay amounts owed for work performed (NMSA § 57-28-5(E)). Disputed or defective work is a separate matter. Have counsel review any retainage clause on a covered job.

How long does a New Mexico owner have to pay a contractor?

21 days after receiving an undisputed request for payment. A local public body using grant money may take up to 45 days if the contract and plans clearly say so.

How fast must a New Mexico contractor pay subcontractors?

Within 7 days after receiving payment. Interest at 1.5 percent per month starts on the eighth day.

Does the New Mexico Prompt Payment Act apply to home building?

Not to construction contracts for residential property containing four or fewer dwelling units. Larger residential projects are covered.

Does the act apply to NMDOT highway work?

No. The definition of owner covers persons, local public bodies, and state agencies other than the Department of Transportation.

Sources

  1. NMSA § 57-28-2, definitions (FindLaw)
  2. NMSA § 57-28-3, applicability (FindLaw)
  3. NMSA § 57-28-5, payments, interest, and withholding (FindLaw)
  4. NMSA § 57-28-7, care and protection of work (FindLaw)
  5. NMSA § 57-28-8, final payment (FindLaw)
  6. NMSA § 57-28-11, attorney fees (FindLaw)

Laws and rates change. Confirm current requirements with the state agency before you bid, file, or pay. This page is general information, not legal advice.

Written and edited by

Maurice Francois writes and edits construction operations guides for Smart Business Automator. More from Maurice on the Scaling Legends podcast.

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