Performance security is a financial guarantee that a contractor will complete the work under a construction or supply contract, and it gives the project owner a way to recover money or get the job finished if the contractor defaults. The most common form is a surety bond, but the same function can be filled by a bank guarantee, an irrevocable letter of credit, or cash held in escrow. Which instrument is used, who pays for it, and when it’s required all come down to the contract and, for public work, to federal or state bonding statutes.
The Instruments That Count as Performance Security
A performance bond is the workhorse. It creates a three-party relationship: the contractor (the principal), the project owner (the obligee), and a surety company that stands behind the contractor’s work. The surety is underwriting the contractor’s ability to perform, not setting aside cash. If the contractor defaults, the surety responds and then pursues the contractor for every dollar it spent. The contractor carries the ultimate financial risk.
A bank guarantee works on a different principle. The bank itself owes the money, often payable on demand once the beneficiary presents the documents the guarantee calls for. Because the bank’s promise is primary rather than secondary, bank guarantees usually tie up cash collateral or eat into the contractor’s borrowing capacity. A surety bond is backed by an indemnity agreement instead of pledged cash, so it leaves the contractor’s credit lines free for other uses.
An irrevocable letter of credit, governed by UCC Article 5 in most states, lets the owner draw funds directly from a bank by presenting documents showing default. The bank pays on documentary compliance and sorts out any underlying dispute later, which makes a letter of credit the fastest instrument to collect against. Cash in escrow is the simplest option and the most expensive to the contractor, because it locks up working capital for the full life of the project.
Performance Bonds Versus Payment Bonds
Performance bonds and payment bonds almost always come as a pair, and the two protect different people. A performance bond protects the project owner against the contractor’s failure to complete the work. A payment bond protects subcontractors and material suppliers against the contractor’s failure to pay them.
Only the obligee can claim under a performance bond. Subs and suppliers have no rights there; their remedy is the payment bond. On federal projects, the Miller Act requires both bonds for contracts over $100,000, and the payment bond must be at least equal in amount to the performance bond.1Office of the Law Revision Counsel. 40 USC 3131 – Bonds of Contractors of Public Buildings or Works Because subcontractors can’t put a mechanic’s lien on government property, the payment bond does the job the lien would do on a private site.
When Performance Security Is Required
Federal law draws a bright line. The Miller Act requires performance and payment bonds on any federal construction contract exceeding $100,000.1Office of the Law Revision Counsel. 40 USC 3131 – Bonds of Contractors of Public Buildings or Works The Federal Acquisition Regulation adds that the performance bond’s penal sum must equal 100 percent of the original contract price for contracts above $150,000, and must rise dollar-for-dollar if the contract price goes up.2Acquisition.GOV. 48 CFR 28.102-2 – Amount Required
Every state has its own version, usually called a Little Miller Act, that applies to state and local public construction. The thresholds and amounts vary. Some states trigger bonding at contracts as low as $25,000; others set the floor at $100,000 or higher. Some require bonds equal to the full contract value; others require 50 percent. In many states, a subcontractor or supplier has to file a preliminary notice before starting work to keep the right to claim against the bond later.
Private projects have no statutory bonding requirement. Whether an owner demands performance security is purely a contract negotiation. Large commercial and industrial owners increasingly do require it, especially when a lender is financing the work and wants protection against contractor default.
What It Costs
Surety bond premiums usually run between 1 and 5 percent of the contract value, with well-qualified contractors paying around 3 percent for a combined performance and payment bond. The rate depends on the contractor’s financial strength, credit history, track record on similar jobs, and the size of the contract. Contractors with credit scores below 700 or thin bonding history pay toward the top of the range, and some will only qualify through the SBA Surety Bond Guarantee Program.
Bank guarantees and letters of credit price differently, usually as an annual percentage of the guaranteed amount plus issuance fees, and they often require posted cash collateral. The real cost comparison isn’t just premium versus fee. It’s also the hit to the contractor’s liquidity and borrowing capacity, which a surety bond largely avoids.
How a Contractor Gets Bonded
Surety underwriting looks more like a loan application than an insurance quote. The contractor submits audited financials covering the last three fiscal years, a description of the project, a work-in-progress schedule showing current commitments, and proof of general liability and workers’ compensation coverage. The surety is evaluating three things at once: financial capacity to absorb a loss, technical ability to finish the job, and character as reflected in credit history and references.
Most contractors work through a specialized surety broker who packages the file and shops it. Approval on a straightforward bond usually takes a few business days. Larger or more complex bonds take longer. Once the surety issues the bond, the contractor delivers it to the owner, who should verify it directly with the surety and confirm the company appears on the Treasury Department’s approved list of federal sureties.
From Bid Bond to Performance Bond
On competitively bid work, the process starts before the award. A bid bond guarantees that the contractor will sign the contract and furnish the required performance and payment bonds if selected. The bid package also includes a consent of surety, confirming the surety has looked at the project and is ready to issue the performance bond on award. If the winning bidder backs out or can’t produce the bonds, the owner claims against the bid bond. Once the contract is awarded, the performance and payment bonds are issued and priced together, and the bid bond falls away.
The General Indemnity Agreement
This is the piece contractors most often underestimate. Before any surety issues a bond, the contractor’s owners, and often their spouses, sign a General Indemnity Agreement. A surety bond is not insurance. It’s an extension of credit. The GIA is the surety’s promise that if it ever pays on a bond, the contractor and its principals will reimburse every dollar, including legal and investigation costs.
The obligation is typically joint and several, so the surety can pursue any individual signer for the full amount. If a $2 million bond is called and the company is insolvent, the surety can reach the owner’s personal assets. The GIA also contains a collateral-deposit provision: when the surety receives a claim, it can demand that the indemnitors post cash or other collateral equal to the claim amount, before the claim is even resolved.3National Association of Surety Bond Producers. Legal Spotlight – Help Contractor Clients Understand Surety’s General Indemnity Agreement Contractors who sign without reading those provisions sometimes find their accounts frozen at the worst possible time.
What Happens When the Owner Makes a Claim
A claim starts with contractor failure. Typical triggers are walking off the job, falling so far behind that completion is in doubt, or not paying subcontractors. The owner issues a formal notice of default and gives the contractor a defined cure period. On federal contracts, that period is at least 10 days.4Acquisition.GOV. 48 CFR 49.402-3 – Procedure for Default If the contractor doesn’t cure, the owner notifies the surety and declares default.
Here the performance bond diverges sharply from a bank guarantee or letter of credit. The surety doesn’t just cut a check. It usually chooses from four options:
- Finance the original contractor through completion, if the problem is cash flow rather than competence.
- Take over the project and hire its own completion contractor.
- Tender a replacement contractor for the owner’s approval.
- Pay the penal sum, or the actual damages if lower, and step out.
Which path the surety takes depends on how far along the project is, what completion will cost, and whether the remaining work exceeds the bond’s penal sum. After paying, the surety turns to the GIA and pursues the contractor and its personal guarantors. On federal payment bond claims, subcontractors and suppliers have one year from the last day they supplied labor or materials to sue.5Office of the Law Revision Counsel. 40 USC 3133 – Rights of Persons Furnishing Labor or Material
When the Bond Ends
A performance bond doesn’t release the moment the last task is finished. Most construction contracts include a warranty or maintenance period, and the bond stays in force through it. The standard arrangement bundles a one-year maintenance period into the bond’s scope and price. Longer maintenance costs extra, and periods beyond five years can be hard to get without additional protection like manufacturer warranties running to the owner.
Formal release happens when the owner issues final acceptance of the completed work. Under the widely used AIA A312 form, full performance ends both the contractor’s and the surety’s obligations under the bond. Until that acceptance, the contractor keeps the bond in force at its own expense. Always get a written release or confirmation that the bond has been exonerated. Leaving a bond technically open can tie up bonding capacity for the next project.