Glossary
Bid Bond vs Performance Bond
Last updated
Definition
A bid bond and a performance bond are two distinct surety instruments that show up at different stages of a construction project, and contractors regularly confuse them. A bid bond guarantees that if the contractor is awarded the project, the contractor will enter into the contract and provide the required performance and payment bonds at the agreed price. A performance bond guarantees that the contractor will complete the work according to the contract terms once the project is underway. Both are issued by a surety company on the contractor's behalf, but they cover different obligations and are usually required at different points in the procurement timeline.
Context
Surety bonds are a standard feature of public construction work in the United States and a frequent feature of larger private work. The Miller Act, codified at 40 U.S.C. §§ 3131-3134, requires performance and payment bonds on federal construction contracts above a stated threshold, and the Little Miller Acts in each state extend similar requirements to state and local public work. Private owners often impose their own bonding requirements through the contract documents, particularly on projects above a size where the owner has meaningful exposure if the contractor fails to perform.
The bid bond and the performance bond serve different purposes. The bid bond protects the owner against the cost of a contractor walking away after winning the bid. The performance bond protects the owner against the cost of a contractor failing to complete the work after the contract has been signed. The payment bond, which is usually issued together with the performance bond, protects subcontractors and suppliers who would otherwise have no lien rights on public projects.
For the contractor, the practical experience of providing each bond is shaped by the surety relationship the firm has built. Sureties evaluate contractors continuously and approve bonds within a contractor’s existing capacity. A firm that has not done the work to maintain that relationship will run into delays at the moment a bond is needed, which is one of the reasons surety capacity is treated as a strategic asset rather than a transactional one in well-run firms.
Components
The two bonds differ across several dimensions that contractors should understand:
- When required. The bid bond is required at submission, accompanying the bid itself. The performance bond is required at contract execution, after the award has been made and before the work begins.
- What it guarantees. The bid bond guarantees that the bidder will honor the bid by entering into the contract at the bid price and providing the performance and payment bonds. The performance bond guarantees that the contractor, once under contract, will complete the work according to the contract documents.
- Bond amount. The bid bond is typically a percentage of the bid amount, often 5% or 10%, and the percentage is set by the solicitation. The performance bond is typically 100% of the contract amount on federal work and on most state and municipal work, though private contracts sometimes specify lower percentages.
- Cost to the contractor.The bid bond usually carries no separate premium and is provided by the surety as part of the standing relationship. The performance bond carries a premium based on the contract amount and the contractor’s classification with the surety, typically in the range of 0.5% to 3% of the contract value.
- Form requirements. Both bonds have to be issued on the form the solicitation specifies, often a federal form on federal work or an owner-specific form elsewhere. The form has to identify the surety, list the bond amount, and carry signatures and corporate seals where required.
- Surety qualifications.Federal work usually requires the surety to appear on the Treasury Department’s Listing of Approved Sureties, often called the T-Listing, with sufficient underwriting capacity for the bond amount in question. Owners on non-federal work often impose minimum surety ratings such as A.M. Best A- or better.
Common Mistakes
- Treating the bid bond as a separate product to source per bid. The bid bond is supposed to flow from the standing surety relationship, and a contractor who has to start a fresh underwriting conversation every time a bid bond is needed has either outgrown the existing surety capacity or has not built the relationship that gives sureties the comfort to issue routinely. The fix is at the relationship level, not at the per-bid level.
- Underestimating performance bond lead time on a non-routine project. A contractor whose recent work has been at one project size and complexity may run into surety underwriting questions when bidding into a substantially larger project. The questions get resolved through financial documentation, conversations with the underwriter, and sometimes capacity adjustments. None of that work moves quickly under deadline pressure, so it has to be initiated when the project is identified, not when the award is imminent.
- Submitting a bid bond from a non-conforming surety. Federal solicitations require T-Listed sureties, and a bid bond from a surety not on the list will be rejected even if the bond is otherwise valid. The same applies to private and public solicitations that specify minimum ratings or particular surety qualifications.
- Confusing the bond amount with the contractor’s exposure.The bond amount is the surety’s exposure to the owner, not the contractor’s exposure to the surety. The contractor signs an indemnity agreement with the surety that obligates the contractor to repay the surety for any losses paid out under the bond, plus costs. The full bond value sits on the contractor’s balance sheet as a contingent obligation.
- Missing the payment bond in the discussion.The payment bond is usually issued together with the performance bond and protects subcontractors and suppliers, who have no mechanic’s lien rights on public work in most jurisdictions. The two are often referred to together, and a contractor who only discusses the performance bond is missing half the surety obligation that comes with the contract.
How ScalaBid Handles This
Bond requirements are surfaced in the action checklist component of every ScalaBid Submission Package, with the bid bond requirements pulled from the solicitation at the time of bid response and the performance and payment bond requirements flagged for the contract execution stage that follows an award. Each item carries the solicitation reference, the required bond percentage, the surety qualifications the owner has imposed, and the form the bond has to be issued on. The contractor’s team takes the checklist to the surety with the lead time the relationship needs, rather than discovering bond requirements at the end of a 72-hour window when the bid is otherwise ready to submit.