Insurance and bonds

What is a performance bond in construction?

A performance bond is a surety bond that guarantees the owner the contractor will complete the work according to the contract. If the contractor defaults, the surety steps in to finish the job or pay the cost, up to the bond amount.

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A performance bond protects the owner. If the contractor walks off the job, goes broke, or fails so badly the owner terminates it for default, the surety is on the hook to see the project finished, up to the penal sum of the bond. It is different from insurance. The surety expects the contractor to repay any losses, which is why contractors sign an indemnity agreement, often personally, before a surety will write bonds.

Owners require performance bonds on most public work and on many larger private jobs. GCs also require them from key subcontractors, though some use subcontractor default insurance instead.

Federal requirements

Under the Miller Act, 40 U.S.C. 3131, a federal construction contractor must furnish a performance bond in an amount the contracting officer considers adequate for the government's protection. FAR 28.102-1 requires performance and payment bonds on construction contracts exceeding $150,000. Under FAR 28.102-2, the performance bond penal amount is normally 100 percent of the original contract price, plus 100 percent of any price increase, though the contracting officer can set a lower amount that still protects the government.

State and local public owners have their own bond laws, and private owners set bond requirements in their contracts.

What happens when a contractor defaults

When an owner declares a default, usually after a cure notice and a chance to fix the problem, the surety investigates. Depending on the bond form and the facts, it may:

  • Finance the contractor so it can finish the job itself.
  • Take over the work and hire a completion contractor.
  • Tender a new contractor to the owner and pay the difference in cost.
  • Pay the owner up to the penal sum and let the owner finish the work.
  • Deny the claim if it believes the default was not proper or the owner breached first.

A worked example

Say a city awards a $2,400,000 park building to a GC with a 100 percent performance bond. At 60 percent complete, the GC stops showing up and stops paying subs. The city issues a cure notice, then terminates for default. The surety reviews the records and tenders a completion contractor whose price to finish is $1,250,000. The unpaid contract balance is $960,000. The surety covers the $290,000 difference and then pursues the original GC and its owners under the indemnity agreement.

Common mistakes

  1. Thinking the bond protects the contractor. It protects the owner, and the contractor pays the surety back.
  2. Signing the indemnity agreement without understanding it puts personal assets at risk.
  3. Owners terminating without following the contract's notice and cure steps, which can release the surety.
  4. Letting the scope grow through change orders without confirming bond coverage tracks the increase.
  5. Ignoring the surety until default. Sureties prefer early warning and can often help fix problems first.

Related terms

The performance bond is usually paired with a payment bond and preceded by a bid bond. Related terms include completion bond, maintenance bond, bond capacity, and termination for default. See how bonding capacity is calculated for contractors. Smart Business Automator keeps WIP and job cost data current, which is what sureties ask for. See job costing and WIP automation.

Frequently asked questions

Who does a performance bond protect?

The owner, or obligee. It guarantees the contractor will complete the work according to the contract. Subs and suppliers are protected by the payment bond instead.

How much is a performance bond on a federal job?

Normally 100 percent of the original contract price, plus 100 percent of any increases, under FAR 28.102-2, unless the contracting officer sets a lower adequate amount.

Is a performance bond insurance?

No. The surety expects to be repaid by the contractor for any losses under an indemnity agreement, unlike an insurer that prices in expected losses.

What is the penal sum?

The maximum amount the surety can be required to pay under the bond, usually set as a percentage of the contract price.

Sources

  1. Cornell LII: 40 U.S.C. 3131, Bonds of contractors of public buildings or works
  2. Acquisition.gov: FAR 28.102-1, Bonds and other security, general
  3. Acquisition.gov: FAR 28.102-2, Amount required
Written and edited by

Maurice Francois writes and edits construction operations guides for Smart Business Automator. More from Maurice on the Scaling Legends podcast.

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