Every person on a construction project shows up expecting to be paid. The electrician who wires the building. The concrete supplier who delivers at 6 a.m. The HVAC subcontractor who finishes their scope on time. When a general contractor fails to pay — through insolvency, dispute, or outright default — the workers and suppliers who did the work are left holding the bill. A payment bond exists so that does not happen.
What Is a Payment Bond?
A payment bond is a type of surety bond that guarantees subcontractors, suppliers, and laborers will be paid for their work and materials on a construction project, even if the contractor fails to make those payments. It is one of the most common bonds in the construction industry and one of the most consequential for everyone working below the general contractor on a project.
Payment bonds are also commonly called labor and material bonds or construction payment bonds. In the context of government contracting, they are sometimes referred to as Miller Act bonds. Regardless of the name used, the function is the same: the bond creates a financial backstop that protects the people who build the project.
A payment bond is not insurance. The contractor purchases the bond but it protects third parties — the subcontractors, suppliers, and laborers — not the contractor. If the surety pays a valid claim, the contractor is required to reimburse the surety in full. The financial responsibility stays with the contractor throughout.
The Three Parties in a Payment Bond
Every payment bond is a three-party agreement.
| Party | Role |
|---|---|
| Principal | The contractor who purchases the bond and is obligated to pay subcontractors, suppliers, and laborers |
| Obligee | The project owner or government entity requiring the bond and benefiting from lien protection |
| Surety | The bonding company that guarantees valid claims will be paid if the contractor defaults on payment |
The contractor pays a premium to the surety. The bond is then filed with the project owner as a condition of the contract. If an unpaid subcontractor or supplier files a valid claim, the surety pays the owed amount and then seeks full reimbursement from the contractor, including interest and fees, as established in the General Indemnity Agreement signed at bond issuance.
Why Payment Bonds Exist
The fundamental reason payment bonds exist on public projects is that mechanics liens are not available against government-owned property. On a private project, an unpaid subcontractor or supplier can file a mechanics lien against the property — creating a legal interest in it that can delay a sale, encumber title, or even force foreclosure. That legal lever gives subs and suppliers real financial leverage.
But a subcontractor doing the same work on a government-owned hospital, school, or bridge has no lien rights at all. You cannot place a lien on public property. The payment bond is the substitute mechanism — the way unpaid parties on public projects recover what they are owed without the lien tool.
For private projects, payment bonds serve a different but equally valuable purpose: they protect the project owner from having their property encumbered by liens filed by unpaid subs and suppliers. An owner who requires a payment bond on a private project is purchasing lien protection for their asset.
Laws Governing Payment Bonds
At the federal level, payment bonds are governed by the Miller Act (40 U.S.C. § 3131), passed in 1935. The Miller Act requires that prime contractors furnish a payment bond on all federal construction contracts exceeding $150,000, with the bond amount equal to 100% of the original contract price. If the contract price increases, the bond amount must increase by the same percentage.
For federal contracts between $35,000 and $150,000, the Federal Acquisition Regulations (FAR Part 28) require alternative payment protections. Contracting officers may select from several options including a payment bond, an irrevocable letter of credit, a tripartite escrow agreement, or certificates of deposit. The payment bond remains the most commonly used alternative.
All 50 states have enacted their own versions, commonly called Little Miller Acts. These laws impose payment bond requirements on state and local government construction projects. Thresholds vary significantly by state — Texas requires a payment bond on state projects over $25,000, while Pennsylvania’s threshold is $5,000. Every jurisdiction in the United States requires some form of payment protection on public projects above a certain contractual value.
Payment Bond vs. Performance Bond: What Is the Difference?
Payment bonds and performance bonds are often issued together, and both are typically required on public construction projects. They protect different things.
| Bond Type | What It Protects | Who Benefits |
|---|---|---|
| Payment Bond | Guarantees subcontractors, suppliers, and laborers will be paid | Subs, suppliers, laborers — and the project owner through lien protection |
| Performance Bond | Guarantees the contractor will complete the project according to contract terms | The project owner |
When a performance bond is required on a project, the payment bond is typically included in the same premium cost. You do not pay separately for two bonds — the payment bond comes with the performance bond program.
Who Is Covered by a Payment Bond?
The payment bond is intended to protect everyone who supplies labor or materials to the project, but coverage is not unlimited. Standard payment bond language defines specific tiers of protection.
Those who are covered include first-tier subcontractors who have a direct contract with the principal, second-tier subcontractors who have a contract with a first-tier sub, first-tier material suppliers who contracted directly with the principal, and some second-tier material suppliers who contracted directly with a first-tier subcontractor. Engineers, architects, and surveyors providing professional services to the project may also have recourse under the bond.
Those who are typically not covered include third-tier subcontractors (those contracting with a second-tier sub), some second-tier material suppliers who supplied a first-tier material supplier, and the prime contractor itself. The prime contractor cannot file a claim against their own payment bond for non-payment — they must pursue the project owner or government directly.
What can be covered by a valid claim goes beyond just labor and materials. Courts have ruled that under the Miller Act, a supplier only needs to demonstrate that it is “reasonably believed” that materials were to be used in the project to have protection. Beyond direct labor and materials, items covered under payment bonds have included rental equipment, fuel and oil used for equipment on the project, tools, project-related taxes, and delay costs.
How Much Does a Payment Bond Cost?
Payment bond premiums are calculated as a percentage of the contract value, and the rate is tiered — meaning the percentage decreases as the bond amount increases. For most contractors, the standard range falls between 1% and 4% of the total bond amount depending on credit profile, financial strength, and project type.
A typical sliding rate structure for a general contractor performing standard commercial work looks like this:
| Contract Amount | Rate Per $1,000 |
|---|---|
| First $100,000 | $25.00 (2.5%) |
| Next $400,000 | $15.00 (1.5%) |
| Next $2,000,000 | $10.00 (1.0%) |
| Next $2,500,000 | $7.50 (0.75%) |
| Over $5,000,000 | $6.50–$7.00 (0.65%–0.70%) |
Using this structure, a $1,000,000 payment bond would cost approximately $13,500 — an effective rate of 1.35%.
When a performance bond is required on a project, the payment bond is included in that cost. You are not paying for two separate bonds. On projects that require a standalone payment bond without a performance bond, the cost is based on the contract price, scope of work, and the contractor’s financial profile.
The following factors determine the specific rate offered:
| Factor | Impact |
|---|---|
| Personal and business credit score | Primary driver, especially for bonds under $500,000 |
| Financial statements | Required above $500,000; quality of statements affects rate |
| Project size and type | Larger projects and higher-risk work types carry higher rates |
| Work history and track record | Strong history of completed projects improves rates |
| Existing surety relationship | Established relationships with a surety typically yield better terms |
Underwriting Requirements by Contract Size
The financial documentation required to qualify for a payment bond scales with the contract value.
| Contract Size | Documentation Required |
|---|---|
| $500,000 or less | Simple application with qualifying credit |
| $500,000–$1,500,000 | CPA compilation, internal corporate financials, or corporate tax returns |
| $1,500,000–$50,000,000 | CPA-reviewed financial statement |
| $50,000,000 and above | CPA-audited financial statement |
For all larger bonds, a personal financial statement for any owner with more than 15% equity and a copy of the contract to be bonded are also required. A payment bond follows the contract — the surety company will want to review the contract before issuing the bond.
How to Get a Payment Bond
Getting a payment bond is a clear process when you work with the right surety provider. Here is how it works through Swiftbonds:
Apply. Submit your application with information about your contracting company, the project, the contract value, and the type of work. For bonds under $500,000, a simple application with qualifying credit is typically sufficient to generate a quote. Larger bonds require additional financial documentation, and the Swiftbonds team will walk you through exactly what is needed.
Get your quote. Swiftbonds reviews the application and returns a premium quote. If the project also requires a performance bond, the payment bond is included in that cost. If only a payment bond is needed, the rate is based on the contract price and the contractor’s financial profile.
Pay your premium. Once you accept the quote, pay the bond premium. Swiftbonds issues the bond documentation.
File the bond. The issued payment bond is filed with the project owner, government agency, or obligee as required by the contract or bid documents. The project can then proceed.
Swiftbonds LLC
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Making a Claim Against a Payment Bond
If you are a subcontractor or supplier who has not been paid on a bonded project, here is the process for recovering what you are owed.
Send a preliminary notice. Some states require a preliminary notice at the outset of a contractor or supplier’s work on each project to preserve the right to make a payment bond claim later. Sending one on every job is a best practice regardless of whether it is legally required.
Send a notice of intent. A notice of intent is a formal demand letter informing the recipient that you intend to file a payment bond claim unless you are paid. It is a final warning — if payment is not received, the claim will be filed.
File the claim. The specific procedures and deadlines vary by state, but filing almost always involves sending the claim document via certified mail with return receipt requested to the required parties. On Miller Act claims, the notice must be sent to the prime contractor and must be delivered by means that provide written third-party verification.
Send an intent to proceed. After the formal claim is filed, an additional letter can be sent detailing further action — typically threatening to file suit — if the claim is not resolved.
Enforce the claim. If the claim is ignored or rejected, filing suit against the bond is the final step. Most states require suit to be filed within one year.
The most critical deadline in this entire process is the 90-day window from the last time labor or materials were furnished to the project. For subcontractors and suppliers not directly contracted with the prime contractor, this 90-day deadline is a legal requirement — missing it invalidates the claim entirely. Even those who have a direct contract with the prime should treat 90 days as a hard deadline. One of the most common and costly mistakes is waiting too long, hoping to be paid, and losing the right to file a claim in the process.
Frequently Asked Questions
Are payment bonds required on private projects?
Not by law in most cases, but private owners frequently require them voluntarily. An owner who requires a payment bond on a private project is protecting their property from mechanics liens that unpaid subcontractors or suppliers might file. Lenders financing construction projects sometimes require payment bonds as a condition of the loan. Any private owner has the right to require a payment bond regardless of whether a law mandates it.
What is the difference between a payment bond and a performance bond?
A payment bond guarantees that subcontractors, suppliers, and laborers will be paid. A performance bond guarantees that the contractor will complete the project according to contract terms and specifications. Both are typically required together on public projects. When a performance bond is issued, the payment bond is usually included in the same premium — you do not pay separately for two bonds.
Can the prime contractor file a claim against their own payment bond?
No. The prime contractor who purchased the bond cannot file a payment bond claim against themselves for non-payment by the project owner. If the prime contractor is not being paid by the government or project owner, they must file suit directly against the owner. Payment bond claims are available to subcontractors, suppliers, and laborers — not to the principal who purchased the bond.
What happens if a payment bond claim is filed against my company?
The surety investigates the claim by contacting the principal to verify facts and amounts. If the claim is valid, the surety pays the owed amount to the claimant. The surety then seeks full reimbursement from the contractor — including interest and fees — pursuant to the General Indemnity Agreement signed when the bond was issued. A claim on your payment bond does not end the matter; it creates a financial obligation to the surety that must be repaid.
Is the payment bond really non-cancellable once a project has begun?
Yes. Unlike many other bonds that contain cancellation provisions allowing the surety to cancel with 30-day notice, payment bonds are non-cancellable once the project is underway. The project must be completed — or the contract must terminate resulting in a claim — before the payment bond obligation ends. This non-cancellable feature is one of the reasons payment bonds require more careful underwriting than other bond types.
Can a subcontractor find out who the payment bond surety is?
Yes, and every subcontractor and supplier should do this before work begins. On public projects, you have the legal right to request the surety’s name, address, penal amount, and a copy of the bond. On Miller Act projects specifically, the contracting officer is required to provide this information upon written request. Best practice is to get this information before the project starts — once things go south on a job, it can be difficult to obtain.
Conclusion
A payment bond is the foundation of financial trust that makes large-scale construction possible. It tells every subcontractor, supplier, and laborer on a project that there is a financial guarantee behind the work they are about to do — and that if the contractor fails to pay, there is a path to recovery that does not involve an expensive, time-consuming lawsuit. For project owners, it provides lien protection and the peace of mind that comes with knowing their property is not at risk from unpaid parties below the general contractor. For contractors, it is a signal to the market that a qualified surety has reviewed their financials and stands behind their ability to perform. Obtaining the right payment bond, at the right amount, through the right surety partner is one of the most important steps any contractor takes before breaking ground on a bonded project.
5 Things About Payment Bonds You Will Not Find on Most Surety Websites
The original Heard Act of 1894 was the first federal law requiring payment protection on government contracts, but it had significant enforcement gaps because subcontractors and suppliers had to sue in the name of the United States — a procedural hurdle that made recovery difficult. The Miller Act of 1935 corrected this by allowing claimants to file suit in their own names, dramatically increasing the practical utility of the bond for the workers and suppliers it was designed to protect.
On Miller Act projects, there is a distinction between first-tier subcontractors and second-tier subcontractors when it comes to notice requirements. First-tier subs (those with a direct contract with the prime) do not need to provide advance notice before filing suit; they can sue directly on the bond. Second-tier subs and suppliers (those without a direct contract with the prime) must provide written notice to the prime contractor within 90 days of their last furnishing — a procedural requirement that courts strictly enforce, with no exceptions for good cause.
In states with “unconditional” payment bond requirements, some bond forms obligate the surety to pay valid claims even if the contractor disputes the debt — meaning the surety cannot simply deny the claim because the contractor says the sub’s work was defective. The contractor’s defense is handled separately in indemnity proceedings after the surety has already paid. This creates a powerful incentive for contractors to resolve payment disputes quickly before claims escalate to the bond level.
Some large private construction projects use a “dual obligee” bond form in which both the project owner and the lender financing the project are named as obligees. This structure protects the lender from having the property encumbered by liens that could impair the value of their collateral, and it creates obligations between the surety and the lender that do not exist under a standard single-obligee bond form.
The Prompt Payment Acts at both the federal and state levels interact directly with payment bond claims in ways most subcontractors do not realize. These laws set specific timeframes within which prime contractors must pay their subcontractors after receiving payment from the owner. When a prime contractor violates a Prompt Payment Act, it can create an independent cause of action for the subcontractor — separate from and in addition to any payment bond claim — and in some jurisdictions can accelerate the right to file a bond claim even before the 90-day notice window has otherwise opened.