A Bid Bond guarantees that if you submit the lowest bid on a construction project and are awarded the contract, you will sign the contract and provide the required performance and payment bonds. If you fail to do so, the bond compensates the project owner for the difference between your bid and the next lowest bid. Bi…
Overview
What it is.
A Bid Bond guarantees that if you submit the lowest bid on a construction project and are awarded the contract, you will sign the contract and provide the required performance and payment bonds. If you fail to do so, the bond compensates the project owner for the difference between your bid and the next lowest bid. Bi…
Who usually needs it
General contractors, subcontractors, and construction companies bidding on public works projects in Illinois, or private projects where the owner requires bid security. Commonly required by IDOT, municipalities, counties, school districts, and other government entities.
Pricing & timing
What to expect.
Generic pricing
Bid bonds guarantee that a contractor will honor their bid and enter into the contract if awarded. Typical Pricing:. • Small contracts: Commonly around 1–5% of the bid amount. • Larger contracts: Rates generally scale lower as contract size increases. • Bid bonds: Often provided at no additional cost when paired with performance and payment bonds. • Full underwriting required: Credit, financials, experience, and bonding history reviewed. Bid bonds are typically requ…
Typical timeframe
Contract underwriting required — typically 3–5 business days
Application
What to do next.
Tell us the bond name, state, and amount on your form.
Share business and applicant info so the team can quote it.
Sign and pay; we issue the bond and send you the documents.
Keep your effective date and renewal date on file with us.
Start the application.
You are on the exact bond page. The next step is to start the quick application.
StateILBond amountVaries by license type or projectObligeeState, local, or private project owners (including IDOT and municipalities)Bond classBid BondCategoryConstructionBondIllinois Bid BondPlain descriptionA Bid Bond guarantees that if you submit the lowest bid on a construction project and are awarded the contract, you will sign the contract and provide the required performance and payment bonds. If you fail to do so, th…Who needs this bondGeneral contractors, subcontractors, and construction companies bidding on public works projects in Illinois, or private projects where the owner requires bid security. Commonly required by IDOT, municipalities, countie…
FAQ
Common questions.
What amount should my Illinois bid bond be for?
Illinois bid bonds are typically set at 5-10% of your total bid amount. The exact percentage is specified in the bid documents by the project owner (such as IDOT, municipalities, or other public agencies). For example, if you're bidding $500,000 on a project requiring a 10% bid bond, you would need a $50,000 bid bond. Always check the specific project's bid solicitation documents for the required bid security amount.
Are bid bonds required by law on all Illinois public works projects?
No, Illinois does not have a statewide statute that mandates bid bonds on all public works projects. While the Public Construction Bond Act (30 ILCS 550) requires performance and payment bonds for projects exceeding $150,000, bid bonds are typically required on a project-by-project basis through the bid documents, agency rules, or local ordinances. IDOT, municipalities, counties, and school districts commonly require bid bonds as part of their bidding requirements, but it varies by project and jurisdiction.
What happens if I'm awarded the contract but don't provide the required performance and payment bonds?
If you're awarded the contract but fail to sign the contract or provide the required performance and payment bonds, the bid bond protects the project owner. The surety company will pay the difference between your bid and the next lowest responsive bid, up to the bid bond penalty amount (typically 5-10% of your bid). This compensates the owner for the increased cost of awarding to another contractor. You and your surety may also be held liable for additional damages or be barred from future bidding.