Before the 1930s, winning a government construction contract was almost meaningless. Contractors across the United States had discovered a profitable strategy: submit an artificially low bid to win the job, then refuse to complete the work unless the government agreed to pay significantly more. Project owners were held at ransom — they could meet the contractor’s new financial demands or fire them, rebid the project, and watch the same scheme repeat with the next low bidder. There was no financial consequence for the contractor either way. Performance bonds were created specifically to end this. Understanding what they are, how they work, and why they are required on hundreds of thousands of projects every year is essential for any contractor, project owner, or subcontractor operating in the construction industry today.
What Is a Performance Bond?
A performance bond is a type of surety bond that guarantees a contractor will complete a construction project according to the terms and conditions of the contract. Also known as a contract bond, it provides financial protection to the project owner in the event of contractor default. If the contractor fails to perform — whether due to bankruptcy, abandonment, poor workmanship, or failure to meet contractual timelines — the surety company steps in to ensure the project owner is not left without recourse.
Performance bonds are most commonly required for construction contracts, but they are also used to guarantee supply contracts, service contracts, and in some international trade contexts, commodity delivery obligations. The majority of bond requirements come from government contracts, but private project owners also regularly require them on large developments.
The Three Parties in Every Performance Bond
Every performance bond is a three-party agreement.
| Party | Who They Are | Their Role |
|---|---|---|
| Principal | The contractor | Purchases the bond; obligated to complete the project per contract |
| Obligee | The project owner (government agency, developer, private owner) | Protected by the bond; can file a claim if the contractor defaults |
| Surety | The bonding company | Issues the bond; guarantees the principal’s performance; pays valid claims; recovers from principal |
The contractor pays the premium. The bond protects the project owner. If a claim is paid, the contractor must reimburse the surety in full for every dollar paid, plus legal fees and expenses. This full indemnification is what makes a performance bond function as accountability rather than insurance.
The Miller Act and Little Miller Acts
The federal mandate for performance bonds traces directly to the Miller Act, which requires that all federal construction contracts valued over $150,000 be backed by performance and payment bonds. This requirement is now codified in 40 USC Chapter 31, Subchapter III. States have enacted their own parallel statutes — commonly known as Little Miller Acts — applying similar requirements to state-funded construction projects, typically at thresholds that vary by state. At the local level, counties and municipalities set their own thresholds. Baltimore County, for example, requires a performance bond at 100% of the contract price on all projects exceeding $25,000. The practical effect is that the vast majority of public construction projects at every level of government require a performance bond before a contractor can begin work.
Performance Bonds, Payment Bonds, and Bid Bonds — The Full Sequence
Performance bonds rarely stand alone. They are part of a sequence of bonds that together protect a public project from start to finish.
The process begins with a bid bond. When a contractor submits their proposal for a bonded project, they include a bid bond — typically set at 10% of the tender price — guaranteeing that if they are awarded the contract, they will follow through and execute it. If the winning bidder walks away, the project owner can file a claim on the bid bond to recover the difference between the first and second bidder’s price.
When the contract is awarded and the project begins, the performance bond and payment bond are issued together. The performance bond guarantees the work will be completed. The payment bond guarantees that all subcontractors, laborers, material suppliers, and vendors working on the project will be paid. Payment bonds are especially critical on public sector projects because a mechanic’s lien cannot be placed against public property — the payment bond is the only financial protection available to subcontractors and suppliers when the general contractor fails to pay them.
Together, these three bonds protect every phase of a public construction project: the competitive bidding process, the execution of the work, and the payment of everyone involved.
What Happens When a Contractor Defaults
When the contractor fails to perform, the project owner (obligee) files a claim against the performance bond. The claim can be triggered by non-completion, failure to complete within the contract timeline, failure to meet quality specifications, or outright abandonment of the project. Every claim must be investigated and validated before any payment is made.
If the claim is found valid, the surety has several options for resolving the default. It may complete the contract using the original contractor with financial or management support. It may re-tender the project to a new contractor and pay the cost of completion above the original contract price. Or it may compensate the owner directly up to the full bond amount. In some situations, the surety works with the project owner to hire a replacement contractor rather than issuing a cash settlement.
After settling the claim, the surety immediately pursues full reimbursement from the principal — every dollar paid, plus any legal fees and investigation costs. The indemnity agreement the contractor signed when obtaining the bond formalizes this obligation. In many cases, this indemnity extends not only to the business but to the personal assets of the shareholders and, in some circumstances, their spouses. Claims against a performance bond are among the most financially serious events in a contractor’s career — they jeopardize future bonding eligibility, licensing relationships, and the contractor’s reputation in the bonding market for years.
When disputes arise over the validity of a claim, parties can resolve them through mediation, arbitration, or litigation, depending on the bond form’s dispute resolution provisions and the preferences of the parties involved.
The AIA Standard Performance Bond Form
The industry standard for performance bonds in the United States is AIA Document A312-2010, published by the American Institute of Architects. This form provides clear, established protections for all parties and is accepted by project owners, government agencies, and surety companies nationwide. The updated AIA Document A312-2020 expands on these protections by requiring the surety to respond proactively — not just reactively — to prevent or address contractor defaults before they escalate into full claims. Most sophisticated project owners specify the AIA A312 form in their contract documents, and contractors should be familiar with both versions when preparing for bonded work.
Conditional vs. Unconditional Performance Bonds
Not all performance bonds are structured identically. Conditional performance bonds require the obligee to prove that the contractor is in breach of contract and that they have sustained an actual loss before any payout is made. These bonds are most common in the US construction market and are strongly tied to the underlying contract’s performance.
Unconditional (or on-demand) bonds operate differently — the beneficiary can call on the bond simply by making a demand, without needing to prove a breach or loss. These are more common in international contracts, particularly those involving banks as issuers rather than surety/insurance companies. Hybrid forms — conditional bonds with limited on-demand provisions — also exist in certain international contexts.
For most US construction projects, performance bonds are conditional instruments, which means the surety investigates claims before paying and the principal has the opportunity to contest invalid or disputed claims.
How Performance Bonds Are Priced
Performance bond premiums are calculated as a percentage of the total contract value. For financially strong applicants, rates most commonly fall between 1% and 3.5%, though the range can extend to 15% for higher-risk scenarios. Several factors determine where a specific contractor lands within that range.
| Underwriting Factor | How It Affects the Premium |
|---|---|
| Credit score and history | Better credit = lower rate; poor credit may result in denial, not just higher pricing |
| Financial strength (equity, working capital) | More equity = lower rate |
| Performance history | Consistent on-time, on-budget completions = lower rate |
| Years in business | Longer operating history = more favorable terms |
| Type of work | Simpler work = lower rate; complex design-build = higher rate |
| Bond amount requested as % of contract | 50% bond carries lower rate than 100% bond |
| Volume of bonded work per year | High annual bonded volume = negotiating leverage for lower rates |
Credit checks for performance bonds are typically soft pulls that do not affect the contractor’s credit score. Bond cost is frequently included in the contractor’s bid, effectively passing the expense to the project owner as an itemized project cost.
The Three Cs of Underwriting
Surety bond companies evaluate every performance bond application using three core criteria, commonly known as the Three Cs.
Character is the first measure: the contractor’s track record, honesty in past dealings, references from previous projects and clients, and overall integrity in business practices. Capacity is the second: whether the contractor has the skill, experience, and operational resources to execute the specific project being bonded — including whether they have successfully completed projects of similar size and scope before. Capital is the third: the financial strength of the business, including net worth, working capital, and whether the company has the financial depth to sustain the project through completion and survive unexpected cost overruns.
The Letter of Bondability and Bond Programs by Size
Before bidding on bonded projects, experienced contractors work with their surety broker to establish a letter of bondability — a pre-qualification document that establishes the maximum contract size and aggregate bonded workload a surety is willing to support, based on the contractor’s credit, financial strength, and experience. This is not a bond on a specific project. It is a ceiling that tells the contractor exactly what they can bid on before spending time pursuing work they cannot bond.
For smaller contracts, the documentation requirements are significantly lighter. For performance bonds up to $400,000, many sureties use a credit-based program requiring only good personal and business credit with no extensive financial documentation. For contracts up to $3 million, standard underwriting applies. For contracts above $3 million, full account underwriting is required, typically including balance sheets, income statements, cash flow statements, two years of tax returns, bank statements, current work schedules, and a letter of experience documenting previously completed projects. Working with a construction-focused CPA who understands how to present financials for bonding purposes can meaningfully improve the terms a contractor receives.
How to Get a Performance Bond
Getting a performance bond begins well before a specific project is won. The smart approach is to establish a bonding relationship — your surety bond facility and letter of bondability — before you are in the middle of a bid deadline. Start by applying with a licensed surety provider who can evaluate your credit, business financials, and project history. Swiftbonds works with contractors across all 50 states, has access to multiple A-rated surety markets, and can accommodate a wide range of project sizes and credit profiles, including contractors pursuing their first bonded project. Once the underwriter approves your application, you receive a quote for the specific project bond, pay the premium, and receive the executed performance bond — ready to submit to the government agency or project owner as a condition of contract execution.
The bond is issued in conjunction with the payment bond for most government projects, and together they must be filed before the project can legally begin.
Swiftbonds LLC
2025 Surety Bond Technology Provider of the Year
4901 W. 136th Street
Leawood KS 66224
(913) 214-8344
https://swiftbonds.com/
FAQs
What is the purpose of a performance bond? A performance bond guarantees that a contractor will complete a construction project according to the terms of the contract. Its purpose is to protect the project owner from financial loss if the contractor defaults, abandons the project, fails to complete on time, or delivers substandard work. The bond does not protect the contractor — it protects the owner, while holding the contractor financially accountable for any paid claims.
What is the Miller Act, and when does it apply? The Miller Act is the federal law requiring performance and payment bonds on all federal construction contracts valued over $150,000. It was enacted to prevent contractors from gaming the bidding process on government work. Most states have enacted parallel “Little Miller Acts” applying similar requirements to state-funded projects.
Who pays for a performance bond? The contractor (principal) pays the bond premium. However, the bond cost is frequently included as a line item in the contractor’s project bid, effectively passing the expense to the project owner as part of the total project cost.
What happens when a performance bond claim is paid? The surety pays the project owner for validated losses up to the bond amount. The surety then immediately pursues full reimbursement from the contractor — including all legal fees and investigation expenses — under the indemnity agreement the contractor signed when the bond was issued. In many cases, indemnity extends to the contractor’s personal assets and those of the company’s principal shareholders.
What is a letter of bondability? A letter of bondability is a pre-qualification document from a surety establishing the maximum project size and total bonded workload a contractor is approved to take on, based on their financial strength, experience, and credit profile. It tells the contractor what they can bid on before they pursue a specific project.
Can a contractor get a performance bond with bad credit? It depends on the contract size and severity of the credit issues. For smaller bonds, specialty programs for higher-risk applicants exist, though rates will be higher. For larger contracts, sureties typically decline to issue bonds rather than simply charge more, because the fully indemnified nature of performance bonds makes the financial risk of an unqualified principal too high. Contractors with credit challenges should work with a surety broker to explore available options.
What is the difference between a performance bond and a payment bond? A performance bond guarantees the contractor will complete the project as specified in the contract. A payment bond guarantees the contractor will pay all subcontractors, suppliers, laborers, and material vendors on the project. They are typically issued together and serve complementary purposes — the performance bond protects the project owner; the payment bond protects the workers and suppliers behind the general contractor.
What is the AIA A312 performance bond? AIA Document A312-2010 is the American Institute of Architects’ standard performance bond form — the most widely used and accepted performance bond form in the US construction industry. The updated A312-2020 version expands surety obligations to include proactive responses to potential contractor defaults before they become full claims. Most sophisticated project owners specify this form in their contract documents.
Conclusion
Performance bonds are the financial backbone of the construction industry’s accountability system. They exist because of a historical problem — contractors gaming government contracts with impunity — and they solve that problem by creating real financial consequences for nonperformance. They protect project owners from the full cost of contractor default. They protect subcontractors and suppliers through their companion payment bonds. They protect the public’s investment in government-funded infrastructure. And for contractors, they serve as a third-party endorsement of financial and professional capability that opens access to the bonded project market. Understanding how they are structured, how they are priced, what triggers a claim, and how to establish a bonding relationship before a deadline arrives is what separates contractors who compete for the full range of available work from those who are locked out of it.
5 Interesting Things About Performance Bonds Not Found in Any of the Top 10 Sites
- The indemnity agreement that makes performance bonds function is one of the most expansive personal liability documents in commercial construction — and most contractors who sign it do not fully realize its reach until a claim occurs. When a surety pays a performance bond claim and then pursues the contractor for reimbursement, it can recover not just from the business but from the personal real estate, investment accounts, and liquid assets of every individual who signed the indemnity. Unlike the limited liability protection an LLC or corporation normally provides — which insulates owners from business debts — a personal performance bond indemnity voluntarily pierces that shield. Courts have consistently upheld these indemnity agreements even when the business has been dissolved or liquidated, leaving the individual signatories personally exposed for years after the project ended.
- The AIA A312-2010 Performance Bond introduced a significant procedural change that most contractors and project owners still do not fully understand: the surety’s right to investigate and respond to a notice of default before a formal claim demand is made. Under A312-2010, the project owner must notify the surety within seven days of declaring a contractor default, and the surety then has a specific window to meet, investigate, and propose a course of action. The surety is not simply a passive check-writer — it becomes an active participant in deciding how the project default will be resolved. Owners who skip this notice requirement or fail to follow the precise claim procedures in the A312 form have had their claims denied or delayed in court, even when the contractor’s default was undisputed.
- The performance bond market in the United States is one of the most highly concentrated financial markets in the country. The top 10 surety companies write approximately 60% of all performance and payment bond premium in the US, and the top 50 companies account for approximately 95% to 96% of the entire market. This means that a contractor’s access to bonding is effectively controlled by a very small number of underwriting organizations — and a poor claims history with one major surety can significantly limit a contractor’s options across the entire market, since most surety underwriters exchange loss and claims data through industry associations.
- Performance bonds have a secondary application that almost no construction industry participant is aware of: they are used in international commodity trading to guarantee delivery of goods. When a large buyer — say, a steel manufacturer purchasing iron ore from an overseas supplier — wants financial assurance that the commodity will actually be delivered, they may require the seller to post a performance bond. If the goods are not delivered, the buyer can make a claim on the bond for their lost costs. This use is technically covered by the same legal framework as construction performance bonds but operates in a completely different economic context where the surety is often a bank rather than an insurance company.
- One of the least-known tactical aspects of performance bond underwriting is that the bond line established for a contractor is dynamic, not static — it shrinks in real time as the contractor takes on more bonded work. When a contractor posts a bid bond for a project they are competing for, that project value counts against the contractor’s available bond line until the surety is notified that the contractor was not awarded the work. This means contractors who aggressively bid on multiple large projects simultaneously can exhaust their bonding capacity before winning a single contract. The practical implication is that contractors need to manage their bond line the way a business manages a revolving line of credit — understanding that every active bid bond is reducing their available capacity, and communicating with their surety broker to ensure awards and losses are reported promptly so capacity is restored on projects they did not win.
Leave a Reply