Bonding capacity is the aggregate surety limit a broker and surety company will support based on your financials, work on hand, and experience. Small contractors often discover the cap when a municipal ITT asks for 50% performance and payment bonds on a job larger than anything they have finished. Capacity is built over time — it is not a form you download.
How sureties set capacity
Underwriters look at working capital, equity, profitability, bank support, incomplete contracts, and whether you have completed similar work. A new numbered company with thin statements will not bond a $4M water main. Snow and grounds packages with low or no bonding are a more realistic first public-sector step.
Can I raise capacity before this season?
Sometimes, with reviewed financials, a bank line, and a conversation with a construction surety broker — not a personal-lines agent. Timelines are weeks to months, not overnight.
What if I joint-venture?
Some RFPs allow it; many municipal ITTs do not without pre-approval. Read eligibility. Do not invent a JV on closing day.
Bidding within capacity
A go/no-go should include: does this package require bonds, at what percent, and is that inside our surety letter? NorthCited's monitoring notes flag bonding as a mandatory barrier so you do not estimate a job you cannot secure.
Is a surety consent letter enough at bid time?
The tender says. Some want a bid bond; some want a letter of consent to provide performance security if awarded. Substituting one for the other fails the screen.
Where does this sit versus RFP writing?
Narrative polish does not create capacity. Get the surety conversation done in the audit, then write.