Last reviewed 2026-06-21
How surety pricing works
A bond is not insurance for you — it is a guarantee to the government buyer that the work will be finished and your subcontractors paid. You pay a one-time premium to a surety, which underwrites your company much like a lender. Because the premium scales with the contract size but the surety's risk per dollar falls on larger, well-run jobs, the rate per $1,000 declines in tiers as the contract value rises.
A worked example
On an $850,000 contract, the first $100,000 is rated at about $25 per $1,000 ($2,500), the portion to $500,000 at about $15 per $1,000 ($6,000), and the remaining $350,000 at about $10 per $1,000 ($3,500) — roughly $12,000, or about 1.4% of the contract. The calculator above walks these tiers for any value and shows a range, because your real rate depends on underwriting.
The CCDC bond forms
Canadian construction bonds use standard CCDC forms: CCDC 220 bid bond, CCDC 221 performance bond, and CCDC 222 labour-and-material payment bond. Most government solicitations require a performance bond and a labour-&-material bond, each typically at 50% of the contract value. Read the solicitation: it states the bonding amounts and forms you must provide, and missing them is a mandatory-requirement failure regardless of your price.
Get a firm number before you bid
This tool is a planning estimate. Your actual premium — and whether you can be bonded at all — depends on your surety's assessment of your financials and history. Build a relationship with a licensed surety broker early; a firm quote before bid close is the only number you should price against. This is guidance, not financial or legal advice.