Bid Bonds
Bid Bonds are a vital component of the construction industry in Canada, especially for large-scale projects. They serve as a financial guarantee that protects project owners during the bidding process, ensuring that contractors are capable of fulfilling the contract if selected.
What is a Bid Bond?
A Bid Bond is a type of surety bond issued by a surety company on behalf of a contractor (the principal) to a project owner (the Obligee). This bond provides a financial guarantee that the contractor will:
- Honour the terms of their bid if awarded the contract.
- Enter into a contract at the bid price.
- Provide the required Performance and Payment Bonds upon contract award.
Bid Bonds are commonly required for large construction projects in Canada, including those funded by federal, provincial, or municipal governments. They ensure that contractors submit serious, competitive bids and have the financial capability to undertake the project.

Bid Bond Benefits
Contractors
Demonstrates Credibility
Indicates that the contractor has been vetted by a surety company. Shows financial stability and commitment to the project, enhancing the chance of winning contracts.
Legal Requirements
Meets mandatory requirements for bidding on public projects.
Competitive Advantage
Builds trust with project owners by providing assurance of capability and reliability.
Bid Bond Benefits
Project Owners
Financial Protection
Shields against financial loss if a winning bidder retracts their bid or refuses to sign the contract.
Ensures Qualified Bidders
Filters out unqualified contractors, ensuring that only serious and financially stable bidders participate.
Risk Reduction
Minimizes the risk of project delays caused by contractors backing out after winning the bid.
Frequently Asked Questions
Bid Bonds are typically required by project owners for large projects, especially those funded by federal, provincial, or municipal governments in Canada. Private project owners may also require them to ensure contractor reliability.
If a contractor withdraws their bid or refuses to sign the contract after being awarded, the project owner can make a claim against the Bid Bond. The surety compensates the owner for the difference between the defaulting contractor’s bid and the next lowest bid, up to the penal sum of the bond.
The cost (premium) to the contractor for a Bid Bond is usually minimal, often free or a nominal fee, as it is part of establishing a relationship with the surety company. The penal sum of the Bid Bond (the maximum payout) is typically between 10% and 20% of the bid amount in Canada.
Contractors can apply for a Bid Bond through a licensed insurance broker, such as Stanhope Simpson. They will then reach out to a surety company or authorized bonding agent in Canada. The application process typically involves:
- Submitting financial statements.
- Providing work history and references.
- Detailing the specific project information.
- Undergoing a credit and financial capacity evaluation.
A Bid Bond is valid for the bid validity period specified in the bidding documents. It usually expires when the contractor signs the contract and provides the required Performance Bond.
No, each contractor must obtain their own Bid Bond for each project they bid on. The bond is specific to the contractor and the project.
For most public projects in Canada, Bid Bonds are required as part of the tendering process. Federal, provincial, and municipal governments often mandate them to ensure contractor reliability. Private project owners may also stipulate the need for Bid Bonds in their contracts.
If the project owner cancels the project, the Bid Bond is typically released, and no claims can be made against it since the contractor is not at fault.
The penal sum is the maximum amount the surety is obligated to pay under the Bid Bond, usually a percentage of the bid amount (commonly 10% or 20% in Canada).
While not always required, some private project owners in Canada may request Bid Bonds to ensure that only serious and capable contractors participate in the bidding process.
Providing a Bid Bond demonstrates the contractor’s financial stability and commitment, potentially enhancing their reputation and increasing their chances of winning contracts.