A bid bond is a three-party agreement guaranteeing that a contractor will sign the contract and furnish final bonds if they win a public or private bid. This guide explains the legal requirements, the underwriting process, and how to secure coverage quickly. We cover state-specific thresholds, credit checks, and the steps to get prequalified before a deadline.
Bid Bond Requirements
Understanding the specific legal and contractual triggers for a bid bond is the first step in securing it. Requirements vary significantly by jurisdiction and project type. Most public works projects mandate a bid bond to ensure the winning bidder does not walk away from the award.
Public Works Thresholds
State and local governments set specific dollar thresholds that trigger the need for a bid bond. For example, in California, Public Contract Code Sections 10167 and 20171 require bidder's security on state and local public works bids. The security is typically at least 10 percent of the amount bid. In Alabama, the requirement is at least 5 percent of the estimated cost or the bid, capped at $10,000, or $50,000 when the awarding authority is the Department of Transportation. Federal projects under the Federal Acquisition Regulation (FAR) 28.101-2 may require a bid guarantee of at least 20 percent of the bid price, capped at $3 million.
Private Project Requirements
Private developers often include bid bond requirements in their Request for Proposal (RFP) documents. These are not governed by state statutes but by the specific contract terms. A bid bond in a private context protects the owner from the cost of re-bidding if the lowest bidder refuses to sign. The amount is usually a percentage of the bid, often between 5 and 10 percent.
Statutory vs. Contractual Bonds
It is crucial to distinguish between statutory and contractual bonds. A statutory bond is required by law for public works. A contractual bond is required by the specific project owner. BLDAssure helps contractors navigate these distinctions by providing clear guidance on which bonds are mandatory and which are optional but recommended for competitive advantage.

Surety Underwriting Process
Once you know you need a bid bond, the next step is the underwriting process. This is where the surety company evaluates your financial health and construction experience. The goal is to determine if you are a low-risk candidate for the bond.
The Credit Check
Most surety companies perform a soft credit check during the initial application. This check does not affect your credit score. It looks at your business credit history, personal credit history for small businesses, and any existing liens or judgments. A strong credit score can lead to instant issuance for smaller bonds. For larger bonds, a hard credit check may be required, which can temporarily impact your score.
Financial Statements and Experience
Instant vs. Manual Underwriting
Many modern surety platforms offer instant issuance for bonds under $25,000. This process is automated and can be completed in minutes. For larger bonds, the process is manual and can take several days to weeks. BLDAssure partners with Propeller Bonds to facilitate this process, ensuring that your application is routed to the right underwriter with the right data. This reduces the back-and-forth that often delays bond issuance.
Key Takeaways
- Bid bonds are required for most public works projects and many private projects.
- State laws dictate the percentage and threshold for public works bid bonds.
- Federal projects under the Miller Act have specific bid bond requirements.
- Soft credit checks are standard for initial bond applications.
- Financial statements are required for larger bonds.
- Instant issuance is available for smaller bonds through digital platforms.
- Prequalification before a bid deadline is critical to avoid disqualification.
- BLDAssure provides a streamlined process for obtaining bid bonds.
Frequently Asked Questions
What is the cost of a bid bond?
The cost of a bid bond is typically a percentage of the bond amount, often between 0.5% and 3%. The exact rate depends on your credit score, financial health, and the size of the project. BLDAssure offers transparent pricing so you know the cost before you apply.
How long does it take to get a bid bond?
Small bonds under $25,000 can often be issued instantly online. Larger bonds may take several days to weeks, depending on the underwriting process. It is best to apply well before the bid deadline to allow for any delays.
Do I need a bid bond for private projects?
It depends on the project owner's requirements. Many private developers require a bid bond to protect themselves from the risk of the winning bidder walking away. Check the RFP documents for specific requirements.
What happens if I win the bid but cannot get the performance bond?
If you win the bid but cannot furnish the required performance and payment bonds, you may be disqualified and your bid bond may be forfeited. This is why it is important to prequalify for all required bonds before submitting your bid.
Can I get a bid bond with bad credit?
It is possible but more difficult. Surety companies may require additional collateral or a higher premium for applicants with poor credit. BLDAssure can help you explore options and present your application in the best light.
What is the difference between a bid bond and a performance bond?
A bid bond guarantees that you will sign the contract if you win the bid. A performance bond guarantees that you will complete the work according to the contract terms. You typically need both for public works projects.
How does BLDAssure help with bid bonds?
BLDAssure provides a digital platform to apply for bid bonds, track your application status, and manage your certificates. We partner with Propeller Bonds to offer a streamlined underwriting process and competitive rates.
Conclusion
Securing a bid bond is a critical step in winning construction projects. By understanding the legal requirements and the underwriting process, you can position your business for success. BLDAssure simplifies this process with a digital platform that connects you with A-rated sureties. To get started, explore our surety bond options and apply for your bid bond today.
