AEC definitions

What Is a Payment Bond?

Last reviewed: September 2026

A payment bond is a surety's promise that subcontractors, suppliers, and sometimes laborers will be paid if the contractor does not pay them. On public projects, where a mechanic's lien is usually unavailable, the payment bond is the statutory substitute. A claimant must follow the bond's notice deadlines.

Protects
Subcontractors and suppliers against nonpayment
Surety pays
If the principal does not, up to the penal sum
Public work
Often the substitute for a mechanic's lien
Notices
Set by the bond and the statute, strictly
Pair with
A performance bond, which protects the owner
Does not cover
The owner's cost to finish after a default

Definition

Payment bond

The owner requires the bond so the people who furnish work are not left unpaid, and so liens do not disrupt a private project. The Miller Act requires payment bonds on federal projects above a threshold. States have little Miller Acts. Claimants who have a contract with the prime usually have a simpler claim than claimants further down the chain, who often must give an additional notice. The performance bond does not pay those claimants. Filing on the wrong bond, or after the deadline, is a common way to lose a valid debt.

In depth

Who can claim

First-tier subcontractors and suppliers who deal with the prime are the core claimants. Second-tier claimants are covered only as the statute or bond allows, often if they gave notice within a set time after last furnishing.

Employees may have remedies outside the bond. Do not assume every unpaid person on the site is a bond claimant.

Notice is not optional

Federal and state statutes set windows measured from last work or last supply. The notice must say what is claimed and must go to the parties named. A lawsuit filed after the limitation period does not revive a late notice.

Send notices even when negotiations are friendly. The deadline will not wait for the settlement conversation.

Private projects may have both a bond and lien rights

The bond does not automatically cancel lien rights unless the law or a proper waiver says so. Owners use both: a bond for solvent recovery, and waivers so liens are released as payments are made.

A payment bond does not mean the owner should skip waivers.

The penal sum can be shared

Multiple claimants share a bond amount. Waiting to claim does not increase the sum. If the bond is insufficient, recovery is pro rata under the governing law.

Change orders that increase the contract should be reflected in the bond if required.

Do not claim performance when you mean payment

An owner finishes a defaulted job under the performance bond. A supplier gets paid under the payment bond.

Mixing the forms delays both. The claim letter should name the bond, the amount, and the work.

Examples

Payment bond on a real project

  • 01

    A supplier unpaid by a subcontractor on a federal project gives the Miller Act notice within the statutory period and claims against the payment bond.

  • 02

    An owner facing a contractor default calls the performance bond, not the payment bond, to complete the work.

  • 03

    A private owner collects lien waivers each month and also required a payment bond at award.

FAQ

Frequently asked questions

It is a surety bond that pays subcontractors and suppliers if the contractor does not. It is separate from the performance bond, which protects the owner against default.

Public property generally cannot be liened. The payment bond gives laborers and suppliers a statutory way to be paid.

Typically subcontractors and suppliers who furnished labor or materials to the project, if they meet the bond's and the statute's notice rules. Lower-tier claimants often have extra notice duties.

No. Those are owner remedies under the contract and, if included, the performance bond. The payment bond pays claimants down the chain.
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What Is a Payment Bond? | Nomic