What it is
The Miller Act is a federal law that applies to certain construction contracts for public buildings and public works. In general, it asks contractors on covered federal projects to provide a performance bond and a payment bond, since lien rights usually don't work the same way on government property.
The "threshold" is the contract value at or above which those bonds are generally required. The exact figure has been adjusted over time and can differ depending on the contract and how it is structured, so it is important to check the current rule rather than rely on an old number.
Below the threshold, a contracting agency may still ask for bonds or for alternative payment protection. What applies on a specific project is usually spelled out in the solicitation documents and should be confirmed with the contracting agency.
How it’s traditionally been approached
Contractors have traditionally learned about the threshold by reading the bid solicitation carefully, since it typically states whether payment and performance bonds, and sometimes a bid bond, are required.
Many contractors also rely on contracting officers, procurement documents and their own legal or accounting professionals to interpret how the threshold applies, especially when a contract has multiple phases, options or modifications.
Many states have their own "Little Miller Acts" for state and local public projects. These can use different thresholds and procedures, so contractors have traditionally checked requirements project by project and agency by agency.
How the right surety agent may help
A licensed surety agent who works in public works bonding may help you understand how bond requirements typically fit into a bid, and what the surety will usually want to see from your business. A first conversation is often a general review of your work history, your financial information and the types of projects you hope to pursue.
Helpful questions to ask include: How do the federal and state requirements apply to the projects I am considering? What information will a surety typically want from me? How early should I start before a bid deadline? How might bid bonds, payment bonds and performance bonds fit together?
A good agent can also explain the process in plain terms and help you prepare, though approval, bond capacity and contract awards are never guaranteed. Always confirm the specifics with the project owner or contracting agency.
The bigger picture
Bidding on public work can feel high-stakes. Questions about paperwork and thresholds can add stress, especially when a deadline is close. Understanding the basics ahead of time may bring some calm and help you make steadier decisions for your business and your team.
Taking a whole-person view means pacing your growth, keeping your finances organized and leaning on trusted professionals so you are not carrying every detail alone. If the pressure of running a business is weighing on you, resources like Providers.plus may offer additional support.
Keep in mind
- This page is educational only and is not legal, financial or insurance advice.
- Thresholds, requirements and procedures vary by agency, state and project, and they can change, so confirm the current rules with a licensed surety agent or broker and the project owner or contracting agency.
- Bond approval, specific bond capacity and contract awards are never guaranteed.
- Start conversations early, since gathering documents and reviewing your situation can take time.
Not sure where to start? Answer a few gentle questions and choose who you’d like to hear from.
Frequently asked questions
What is the Miller Act bond threshold?
The Miller Act bond threshold is the contract value at or above which federal construction contracts generally require payment and performance bonds. The figure has been updated over time, so check the current requirement with the contracting agency or a licensed surety agent.
Does the Miller Act apply to state projects?
No, the Miller Act itself applies to federal contracts. Many states have similar laws, often called Little Miller Acts, with their own thresholds and rules. Confirm the details with the state agency or project owner.
Are bonds required below the Miller Act threshold?
Not always, but it depends on the project. Agencies may still request bonds or another form of payment protection on smaller contracts. The solicitation documents usually explain what is needed.
What bonds does the Miller Act require?
It generally calls for a performance bond and a payment bond on covered federal construction contracts. The performance bond relates to completing the work under the contract, while the payment bond relates to paying certain subcontractors and suppliers. Bid bonds are often requested at the bidding stage, according to the solicitation.
How do I find the current construction bond threshold for my project?
Start with the bid solicitation and ask the contracting officer or agency. A licensed surety agent who handles public works can also help you understand how the requirements may apply to your bid. Because rules can change, confirm before you submit.
Can a surety agent guarantee I will get a bond for a project above the threshold?
No, an agent cannot guarantee approval or a specific bond capacity. The surety makes its own decision based on factors such as your finances and experience. A good agent may help you prepare and present your information clearly.
Educational resource. Construction Performance Bond shares general information and connects people with independent surety agents. It is not professional advice. Talk with a qualified professional about your own situation.