Government contracting

How the Miller Act protects subcontractors

On federal construction, the prime's payment bond stands in for lien rights. If you are unpaid 90 days after your last work, you can sue on the bond, but second-tier claimants must send notice within 90 days and every claimant must sue within one year.

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The Miller Act (now codified at 40 U.S.C. 3131 to 3134 as the federal Bonds statute) makes the prime contractor on a federal construction job post a payment bond that protects everyone supplying labor and material. If a subcontractor or supplier is not paid in full within 90 days after its last work, it can sue on that bond in federal court. Subs and suppliers who contract with a subcontractor, rather than with the prime, must first give the prime written notice within 90 days of their last work. Every claim has to be filed within one year.

Think of the bond as the substitute for a mechanics lien. On a private job you would lien the property. On a federal job, the surety's bond is the money you go after.

When a Miller Act bond is required

The statute requires performance and payment bonds on federal construction, alteration, or repair contracts over $100,000. The FAR applies that requirement to construction contracts over $150,000, and between $35,000 and $150,000 it requires the contracting officer to pick two or more alternative payment protections, such as a payment bond, an irrevocable letter of credit, or an escrow agreement.

The payment bond amount must equal the total amount payable under the contract, unless the contracting officer makes written findings that this is impractical. Even then, it cannot be less than the performance bond. That is a big cushion: on a $5 million job, the payment bond is normally $5 million.

Who is protected by the payment bond

Miller Act claim rights by tier
Your positionCan you claim?Notice to prime required?Suit deadline
First-tier subcontractor or supplier (contract with the prime)Yes, after 90 days unpaidNo statutory notice1 year after last labor or material
Second-tier sub or supplier (contract with a subcontractor)Yes, after 90 days unpaidYes, written notice within 90 days of last labor or material1 year after last labor or material
Further down the chainThe statute's notice rule describes only claimants with a direct contract with a subcontractorGet legal advice before relying on the bondSame one-year limit if a claim exists

How to make a Miller Act claim in 6 steps

1. Get the bond information on day one

Under FAR 28.106-6, the contracting officer must, on request, give a subcontractor or supplier the surety's name and address, the penal amount of the payment bond, and a copy of the bond (a reasonable copying fee may apply). Ask before you mobilize, and put it in the job file.

2. Track your last day of labor or material

Every deadline runs from the last day you performed labor or supplied material for the contract. Keep delivery tickets and daily reports that prove it. Do not assume later warranty or punch visits extend the date; get advice if your last day is unclear.

3. Send notice if you are second tier

If your contract is with a subcontractor, send written notice to the prime within 90 days of your last labor or material. The notice must state with substantial accuracy the amount claimed and the name of the party you furnished to. Serve it by a method that gives written third-party verification of delivery to the prime's office, place of business, or residence, or by any method a U.S. marshal could use to serve a summons.

4. Notify the surety too

The statute speaks to notice to the contractor, but sending a copy to the surety at the same time starts its claim review and often gets money moving without a lawsuit. Include invoices, the subcontract or purchase order, and proof of delivery.

5. Wait out the 90 days, then file if needed

You can sue once 90 days have passed since your last work without full payment. The suit is brought in the name of the United States for your use, in the U.S. District Court for the district where the contract was performed, regardless of the amount.

6. File within one year, no matter what

The deadline is one year after the last labor was performed or material supplied. Negotiations with the prime do not stop that clock. Calendar it the day your work ends.

Worked example: an unpaid duct supplier

Say a sheet metal shop supplies ductwork to the HVAC subcontractor on a federal clinic renovation. The shop has no contract with the prime, so it is a second-tier claimant. Its last delivery is March 3, and $46,800 is unpaid.

  • Notice deadline: 90 days after March 3 is June 1. The shop sends notice by a courier service with signed delivery confirmation on May 10, naming the HVAC sub and the $46,800 amount.
  • Earliest suit date: 90 days after the last delivery, also June 1, if still unpaid.
  • Last day to sue: one year after March 3. The shop calendars a reminder 60 days earlier to decide whether to file.

With proof of delivery and a bond copy from the contracting officer in hand, the shop sends a claim package to the surety. A surety looking at clean paperwork and a looming suit has a reason to resolve it.

Waivers, flow-downs, and the 7-day payment rule

A waiver of your right to sue on a Miller Act bond is void unless it is in writing, signed by you, and executed after you have furnished labor or material for the contract. A clause in a subcontract signed before you start does not count. Watch lien waiver forms on federal jobs, though, because signing an unconditional waiver for money you have not received can still cause problems.

The bond is not your only protection. The FAR prompt payment clause requires the prime to pay subs within 7 days of receiving government payment for their satisfactory work, with interest on late payments, and to flow that down to every tier. Read more in how to subcontract on federal construction projects.

Mistakes that lose Miller Act rights

  1. Counting the 90-day notice from the invoice date instead of the last day of work or delivery.
  2. Sending notice by regular mail with no proof of delivery.
  3. Waiting for the prime's promises past the one-year deadline.
  4. Signing a waiver after the work without reading what it releases.
  5. Spending the 90 days on a state lien filing instead of the bond notice on a federal job.

Templates, terms, and tools that help

A lien waiver tracking template works just as well for tracking bond notice dates by job. Related reading: how to protect lien rights as a subcontractor and how subcontractors get paid faster. Smart Business Automator records each job's last work date and payment status, so notice and suit deadlines show up before they pass. See construction accounts receivable automation.

Frequently asked questions

Does the Miller Act apply to state or city projects?

No. It covers federal construction contracts. Most states have their own payment bond statutes for state and local public work, with different notice and suit deadlines.

How long do I have to file a Miller Act lawsuit?

Under 40 U.S.C. 3133, the suit must be brought no later than one year after the day the last labor was performed or material was supplied.

Do first-tier subcontractors have to send a 90-day notice?

The statutory 90-day notice applies to claimants who contract with a subcontractor but not with the prime. First-tier subs still have to wait 90 days unpaid before suing and file within one year.

How do I get a copy of the payment bond?

FAR 28.106-6 requires the contracting officer to provide the surety's name and address, the penal amount, and a copy of the payment bond on request. A reasonable copying fee may be charged.

Can a subcontract make me waive Miller Act rights?

A waiver is void unless it is in writing, signed by the person waiving, and executed after that person furnished labor or material for the contract.

Sources

  1. 40 U.S.C. 3131, Bonds of contractors of public buildings or works (Cornell LII)
  2. 40 U.S.C. 3133, Rights of persons furnishing labor or material (Cornell LII)
  3. eCFR: FAR 28.102-1, Bonds for construction contracts
  4. eCFR: FAR 28.106-6, Furnishing information
  5. eCFR: FAR 52.232-27, Prompt Payment for Construction Contracts
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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