The Ultimate Guide to Construction Bonding

Before you can bid on most government construction projects, you’ll need to secure construction bonds. If you’re a contractor preparing to bid on your first government project or a business owner trying to understand bonding requirements, this guide breaks down what these bonds are, how they work and what they cost.

If you have questions about bonding or other financial issues affecting your construction business, contact the construction CPAs at James Moore.

What Are Construction Bonds?

Construction bonds are financial guarantees that protect project owners if a contractor fails to complete work according to contract terms. These bonds involve three parties:

• The contractor, called the principal, purchases the bond.
• The project owner, known as the obligee, receives protection.
• A surety company issues the bond and guarantees the contractor’s performance.

Unlike insurance that transfers risk away from you, construction bonds keep you ultimately responsible. If the surety pays out on a claim because you defaulted on a project, you must reimburse those costs. Surety companies vet contractors carefully before issuing bonds because they expect zero claims.

 

 

What Are the Main Types of Construction Bonds?

Different types of construction bonds serve different purposes. Below are the bonds used most often in the construction industry:

• Bid bonds demonstrate that you’re serious about a project and have the financial capacity to complete it if awarded the contract. When you submit a bid bond, you guarantee that you’ll honor your bid price and provide required performance and payment bonds if selected. Many surety companies provide bid bonds at no cost once they’ve approved your qualifications.
• Performance bonds guarantee project completion according to contract specifications, timeline and budget. If you default due to financial problems, poor workmanship or missed deadlines, the surety can provide financing to help you finish, hire another contractor to complete the work or compensate the owner for losses up to the bond amount. Performance bonds typically equal 100% of the contract price.
• Payment bonds protect subcontractors, laborers and material suppliers. If you don’t pay them, they can file claims against the payment bond. The surety investigates valid claims and compensates unpaid parties, then seeks reimbursement from you. Payment bonds generally match the contract value and are usually issued together with performance bonds for a single premium.
• Maintenance or warranty bonds, also known as retention bonds, cover defects in workmanship or materials that show up after the project is completed. They typically cover a period of one to two years and provide peace of mind to the owner that issues will be addressed at no extra cost.
• Supply or subdivision bonds. These are more niche. A supply bond ensures that suppliers deliver materials as agreed. A subdivision bond may be required by municipalities to guarantee improvements like roads or sidewalks are built properly in new developments.

Comparing Common Construction Bonds

Type of Construction Bond	What It Does	Who It Protects
Bid bond	Guarantees the contractor will honor its bid and provide required bonds if awarded the project	Project owner
Performance bond	Guarantees the contractor will complete the project according to the contract	Project owner
Payment bond	Helps ensure subcontractors, laborers and suppliers are paid	Subcontractors, laborers and suppliers
Maintenance or warranty bond	Covers certain workmanship or material defects discovered after completion	Project owner
Supply bond	Guarantees required materials will be supplied as agreed	Project owner or contractor
Subdivision bond	Guarantees required public improvements will be completed	Municipality or other public authority

Each of these bonds involves a slightly different underwriting process, but all are based on your financial strength, experience and past performance. That’s why it’s essential to have strong financial controls and systems in place.

 

 

When Bonding Is Required (or Optional) in Construction Projects

Understanding when you must provide a construction bond versus when it is optional can save time and protect your reputation. Bonding requirements depend heavily on the type of project and who is funding it.

Public Projects

If you’re bidding on a federal construction project valued over $150,000, the Miller Act requires you to provide both a performance and a payment bond. The bonds must come from surety companies listed on the U.S. Treasury’s approved list. For contracts between $35,000 and $150,000, contracting officers must select at least two alternative payment protections.

Subcontractors who have direct contracts with the prime contractor can file claims against payment bonds. Second-tier subcontractors can also make claims, but they must provide written notice to the prime contractor within 90 days after their last day of work or material delivery. Claims must be filed within one year of that final work date.

Most states also have their own versions of the Miller Act (commonly known as “Little Miller Acts”) for state and local public works projects. These laws apply to state-funded projects and often extend to municipalities, counties and school boards.

Some states require bonds on contracts as small as $25,000, while others set higher minimums. In Florida, for example, public projects over $200,000 typically require both types of bonds.

Private Projects

Bonding is not always required in the private sector, but more owners and general contractors are requesting bonds as a form of risk protection. A private developer may require a performance bond to ensure a project is completed to spec, or a payment bond to prevent liens from unpaid subcontractors.

For emerging contractors, bonding can also help you stand out in a crowded field. Offering to bond a job voluntarily tells an owner you are financially stable and confident in your team’s ability to deliver. It can mean the difference between being seen as a risky bid and a reliable partner.

Even when not required, being “bond ready” improves your credibility and increases your odds of landing higher-value projects. It shows you operate with the kind of professionalism that owners and developers value.

If you’re unsure whether a project requires bonding, consult your contract or talk to one of our construction CPAs and advisors early in the process.

How Much Do Construction Bonds Cost?

Bond premiums typically range from 0.5% to 5% of the contract value. On a $1 million contract with a 1.5% rate, you would pay $15,000 for both performance and payment bonds combined.

These are some of the factors that can affect your construction bond rates:

• Your credit score significantly affects bond costs. Contractors with excellent credit scores above 700 generally pay between 0.5% and 2% of the bond amount. Those with credit issues might face rates of 3% to 5% or higher.
• Financial strength matters tremendously. Surety companies prefer CPA-prepared financial statements because they’re more reliable. Strong working capital (should represent 5-10% of your total work program), solid cash flow, low debt-to-equity ratio (ideally below 3:1) and healthy profit margins (consistently 5% or higher) help secure better rates. Your balance sheet must show you can handle the project’s financial demands.
• Work history and experience also play key roles. A proven track record of completing similar projects on time and within budget reduces the surety’s risk. The complexity and duration of your specific project also impact costs, with longer or more complex projects carrying additional risk.

Surety companies often use tiered pricing structures. For example, they might charge 2.5% on the first $100,000 of contract value, then 1.5% on the next $400,000 and 1% on amounts above $500,000.

Additional factors affecting bond costs include contract duration, warranty periods and project complexity. Design-build projects often command higher rates due to their increased risk profiles.

How the Bonding Process Works From a Contractor’s Perspective

So how do you actually get bonded? If you’re new to this, it might feel like you’re applying for a loan or trying to impress a very cautious investor. And in a way, you are.

Here are the steps for getting a construction bond:

Step 1. Prequalification

Before a surety agrees to back you, they’ll evaluate your financial health, experience, project history and creditworthiness. They want to know that you can complete this job on time and on budget. This involves reviewing your balance sheet, backlog, references and more.

Step 2. Underwriting

Once prequalified, the bonding company will assess each project you want to bond. Underwriters consider your capacity (how much work you’re taking on), character (your reputation and reliability) and capital (your financial resources). They’ll review your financial statements and may ask for a CPA-prepared work in progress (WIP) schedule.

Step 3. Issuance and Cost

If approved, the bond is issued. Costs vary depending on the bond type and the size of the job but generally range from 0.5% to 5% of the contract value. Stronger financials and experience usually translate to lower rates.

Step 4. Claims and Resolution

If something goes wrong and the project owner files a claim, the surety investigates. If they determine you failed to meet the terms of the contract, they will resolve the issue on the owner’s behalf. That could mean hiring another contractor or covering financial losses. But remember, this isn’t free money. The surety will expect full reimbursement from you.

Prepare Your Business to Secure Bonds

Strong financial statements form the foundation of bondability. Work with a qualified CPA to produce accurate, timely financial reports that clearly present your company’s financial position. Surety companies scrutinize your balance sheet, income statement and cash flow statement. They want to see adequate working capital, manageable debt levels and consistent profitability.

Your work in progress (WIP) schedule becomes critical as you pursue larger projects. This report shows the status of each active contract, including costs incurred to date, estimated costs to complete and profit recognition. A well-maintained WIP schedule demonstrates that you understand job costing and can manage multiple projects simultaneously.

Building bonding capacity takes time and strategic planning. Start with smaller bonded projects to establish a track record with surety companies. Complete these projects successfully, on time and within budget. As you prove your capabilities, sureties will increase your bonding capacity, allowing you to bid on larger work.

What Happens if Things Go Wrong?

Construction is full of variables. Even the best contractors can run into problems. But when a project backed by a bond runs off course, the surety is there to step in.

If a contractor fails to perform according to the contract, the project owner can make a claim against the performance bond. Similarly, if subcontractors or suppliers are not paid, they can make a claim on the payment bond.

When a claim is filed, the surety will conduct an investigation. If they determine the claim is valid, they will pay the project owner or complete the project. Then the surety will seek reimbursement from you. This is called indemnity; you are still financially responsible for the failure.

Even if the surety resolves the issue quickly, the claim itself can hurt your business. It may reduce your bonding capacity in the future or increase the cost of future bonds. Some bonding companies may even decline to work with you again, which could limit your access to public or bonded work altogether.

That is why it is critical to:

• Keep detailed records and WIP schedules.
• Monitor project costs and timelines.
• Communicate early with your bonding company and advisors if a problem arises.

Staying ahead of potential issues and being transparent can sometimes help you avoid a claim entirely. And if a claim does occur, having the right financial systems and documentation can reduce the impact.

At James Moore, we work with contractors to build the financial clarity that keeps bonding relationships strong. From construction-specific reporting to long-term planning, we help you put the tools in place to reduce risk and protect your reputation. It is just one way we help better our clients’ businesses.

How Your Construction Firm Can Use Bonds Strategically

Construction bonds are often seen as a requirement or hurdle to overcome, but the most successful contractors use them as a strategic advantage. If you’re planning to grow your business and take on larger projects, bonding should be part of your long-term strategy.

Here are a few ways to think strategically about bonding:

• Use bonding to increase project size and scope. When you can show strong financials and a successful track record, bonding companies are more likely to support higher limits. That means you can pursue bigger contracts and joint ventures with less hesitation.
• Build your financial credibility. Sureties look closely at your financial statements. Having CPA-reviewed or audited financials, along with accurate job costing and work in progress reporting, improves your standing. It also makes you more attractive to lenders and partners.
• Stay proactive, not reactive. Don’t wait until a bid deadline to figure out your bonding capacity. Work with your CPA and surety agent throughout the year to prepare and plan ahead.

Build Financial Excellence in Construction with James Moore

Construction bonds protect billions of dollars in projects annually and open doors to profitable government and public works contracts. Understanding how bonds work, what they cost and how to prepare your business for bonding puts you in a position to compete for larger, more lucrative projects.

Ready to strengthen your construction company’s financial position and increase your bonding capacity? 

Our construction CPAs and advisors help contractors build robust financial systems, produce the reports sureties require and position businesses for growth. Contact a James Moore professional today to discuss how we can support your construction accounting and bonding preparation needs.

 

 

 

All content provided in this article is for informational purposes only. Matters discussed in this article are subject to change. For up-to-date information on this subject please contact a James Moore professional. James Moore will not be held responsible for any claim, loss, damage or inconvenience caused as a result of any information within these pages or any information accessed through this site.