You have found the perfect government contract. Your price is competitive. Your team is ready. But without one document, your bid will be rejected before anyone even reads it: a bid bond. This guide explains exactly what a bid bond is, how it works, how it differs from a performance bond, and how to get one.
What Is a Bid Bond?
A bid bond is a type of surety bond that a contractor submits with their bid proposal for a construction project or supply contract. It guarantees that the bidder will honor their bid if selected and will enter into the contract at the price they quoted.
The bond is a three-party agreement between:
- Principal: The contractor or bidder (you)
- Obligee: The project owner or tendering authority requiring the bond
- Surety: The company that issues the bond and guarantees the obligation
If a contractor wins the bid but refuses to sign the contract or fails to provide the required performance bonds, the project owner can file a claim against the bid bond to recover financial losses.
Why Do Project Owners Require Bid Bonds?
Bid bonds serve two critical purposes for project owners:
First, they deter frivolous or unrealistic bids. When contractors know their bid bond is at stake, they are more careful about pricing their proposals accurately and honestly.
Second, they provide financial protection. If the lowest bidder backs out, the owner must often award the contract to the next lowest bidder at a higher price. The bid bond covers that difference.
| Purpose | How It Works |
|---|---|
| Deters unserious bidders | Contractors risk financial penalty if they back out |
| Compensates for higher costs | Bond covers difference between defaulting bid and next bid |
| Ensures contract execution | Guarantees winner will sign contract and provide performance bonds |
| Protects tender timeline | Prevents delays caused by bidder withdrawal |
How Does a Bid Bond Work?
Here is a simple example of how a bid bond protects the project owner:
- Contractor A submits a bid of $1,000,000
- Contractor B submits a bid of $1,080,000
- Contractor A wins the bid but refuses to sign the contract
- The owner awards the project to Contractor B for $1,080,000
- The difference is $80,000 — the bid bond covers this loss
In this situation, the surety company pays the owner the difference, and the defaulting contractor must reimburse the surety in full.
What Does a Bid Bond Guarantee?
A bid bond guarantees three specific obligations from the contractor:
- The contractor will not withdraw their bid before the end of the bid acceptance period set by the owner
- The contractor will sign the contract if awarded the project
- The contractor will furnish the required performance and payment bonds after winning the bid
If the contractor fails any of these obligations, the owner can call the bond and receive financial compensation.
Typical Bid Bond Amounts
Bid bonds are usually issued for a percentage of the total bid amount. Common requirements include:
| Contract Type | Typical Bid Bond Percentage |
|---|---|
| Government construction projects | 5% – 10% of bid amount |
| Private commercial projects | 5% – 10% of bid amount |
| International tenders | 2% – 5% of tender price |
| Supply contracts | As specified in tender document |
For example, a $1 million contract requiring a 5% bid bond would need a $50,000 bond.
Bid Bond vs. Performance Bond: What Is the Difference?
Many contractors confuse bid bonds with performance bonds, but they serve different purposes at different stages of a project.
| Feature | Bid Bond | Performance Bond |
|---|---|---|
| When required | Submitted with bid proposal | After contract is awarded |
| What it guarantees | Contractor will honor bid and sign contract | Contractor will complete the project |
| Bond amount | 5-10% of bid amount | 100% of contract value |
| Who it protects | Owner during bidding process | Owner during construction |
| Claim trigger | Bidder backs out after winning | Contractor fails to complete work |
In simple terms: the bid bond ensures the contractor will enter the contract, while the performance bond ensures the contractor will complete the contract.
Bid Bond vs. Earnest Money Deposit (EMD)
Many bidders confuse bid bonds with earnest money deposits. While both serve a similar purpose, they work differently.
| Feature | Bid Bond | Earnest Money Deposit (EMD) |
|---|---|---|
| Form | Guarantee from bank or surety | Cash payment upfront |
| Working capital impact | Does not block capital | Funds are blocked until tender ends |
| Refundability | Expires or is released | Refunded to unsuccessful bidders |
| Best for | Bidders with limited cash flow | Bidders with available cash |
For MSMEs and smaller contractors, bid bonds are often preferable because they do not tie up working capital that could be used for other projects.
How Much Does a Bid Bond Cost?
Many contractors are pleasantly surprised to learn that bid bonds are often issued at no cost or very low cost.
| Scenario | Typical Cost |
|---|---|
| Contractor likely to win and buy performance bond | $0 (free) |
| Contractor unlikely to win or high-risk profile | Small fee (negotiable) |
| Bank-issued bid bond (bank guarantee) | 0.5% – 2% of bond amount |
Here is why bid bonds are often free: the surety expects that if you win the bid, you will purchase a performance bond from them. The performance bond generates the premium. The bid bond is offered as a courtesy to secure that future business.
If you obtain a bid bond from a bank as a bank guarantee, you will typically pay a fee and may need to provide collateral.
How to Get a Bid Bond
The process follows four simple steps, and specialists like Swiftbonds have placed these bonds for contractors nationwide, working with A.M. Best A-rated sureties. Here is how it works:
- Apply: Complete a surety bond application with your company information and the tender details, including the bid amount and bond percentage required.
- Quote: Within hours, the surety returns a premium quote — often $0 if you are likely to purchase the performance bond from them.
- Pay: If there is a premium, you pay via credit card, ACH, or wire transfer.
- File: The surety issues the bid bond, and you submit it with your bid proposal as required by the tender documents.
Swiftbonds LLC
2024 Surety Bond Provider of the Year
4901 W. 136th Street
Leawood KS 66224
(913) 214-8344
https://swiftbonds.com/
Where to Get a Bid Bond
You can obtain a bid bond from two main sources:
Surety Companies (Recommended): Specialized surety bond providers issue bid bonds quickly, often with no premium if you will need a performance bond later. This is the fastest and most cost-effective option for most contractors.
Banks: Many national and regional banks issue bid bonds as bank guarantees. You will need a current account with the bank, your company documents, and the tender notice. Banks typically require collateral and charge a fee.
Platform-Specific Bid Bond Requirements
Different procurement platforms have different rules for bid bonds. Always check the specific requirements for your tender.
| Platform | Typical Requirements |
|---|---|
| Federal government (FAR/DFARS) | 20% bid guarantee or 5% bid bond (varies) |
| State procurement portals | Varies by state; check tender document |
| International tenders | Often 2-5% of tender price |
| Private commercial tenders | As specified in request for proposals |
What Happens If a Bid Bond Claim Is Filed?
If you win a bid and then refuse to sign the contract or fail to provide the required performance bonds, the project owner can file a claim against your bid bond.
The claim process works like this:
- Owner demands that you honor your bid
- You refuse or fail to provide required bonds
- Owner claims against the bid bond
- Surety investigates the claim
- If valid, surety pays the owner (typically the difference between your bid and the next bid)
- You must reimburse the surety for the full amount
This is why bid bonds should never be taken lightly. Backing out of a winning bid can have serious financial consequences.
Frequently Asked Questions
Q: Is a bid bond refundable if I do not win the contract?
Yes. If your bid is unsuccessful and you have complied with all requirements, the bid bond expires or is released without penalty.
Q: Can I use the same bid bond for multiple tenders?
No. Bid bonds are tender-specific and cannot be reused across different tenders or portals.
Q: What happens if the bid bond amount is less than required?
Your bid will be considered non-compliant and rejected outright by the procuring authority.
Q: How long does it take to get a bid bond?
From a surety company, often within hours. From a bank, typically 3 to 7 working days.
Q: Do I need a bid bond for every project I bid on?
Only when the tender documents require one. Many private projects do not require bid bonds, but government and large commercial projects almost always do.
Q: What is the difference between a bid bond and a bid guarantee?
The terms are often used interchangeably. In federal contracting, a “bid guarantee” may refer to a specific form required by the FAR, while “bid bond” is the general term for surety-issued bid bonds.
Q: Can an MSME get a bid bond without collateral?
Yes. Surety companies often issue bid bonds without collateral, especially for contractors with good credit and experience. Banks typically require collateral.
Q: What happens if I win but cannot get the performance bond?
This is a serious problem. If you win but cannot provide the required performance bond, the owner can claim against your bid bond. Do not bid on a project unless you are confident you can obtain the required performance bond.
5 Interesting Things About Bid Bonds Not in the Top 10 Sites
- Bid bonds are often free for qualified contractors. Many sureties issue bid bonds at no cost because they expect to write the performance bond if you win. This is a loss leader strategy that benefits both parties.
- The first known bid bond requirement dates back to ancient Rome. Public works projects in the Roman Empire required contractors to post guarantees that they would complete the work—a direct ancestor of the modern bid and performance bond system.
- Bid bonds are called different names in different countries. In many Commonwealth countries, they are called “tender bonds” or “tender guarantees.” In international banking, they are often called “bid guarantees” or “tender security”.
- The Miller Act does NOT require bid bonds. While the Miller Act requires performance and payment bonds for federal construction contracts over $150,000, it does not mandate bid bonds. However, most federal contracting officers require them anyway as a matter of policy.
- Some states allow forfeiture bonds instead of surety bid bonds. In certain jurisdictions where statutes or settled decisional law require forfeiture bonds for public works, a forfeiture bond may be accepted in place of a traditional surety bid bond.
Conclusion
A bid bond is a surety bond submitted with a contractor’s bid proposal that guarantees the bidder will honor their bid, sign the contract if awarded, and provide the required performance bonds. It protects the project owner from financial loss if the winning bidder backs out.
Bid bonds are typically issued for 5-10% of the bid amount and are often provided at no cost to the contractor by sureties who expect to write the performance bond. They differ from earnest money deposits because they do not tie up working capital. They differ from performance bonds because they apply during the bidding phase rather than the construction phase.
Before bidding on any government or large commercial project, check the tender documents carefully for bid bond requirements. Missing or incorrect bid bonds are one of the most common reasons for bid rejection—and an entirely preventable one.
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