What a Bonding Company Looks for in a Contractor's Financials
Sam's List Editorial | 2026-06-23
What a Bonding Company Looks for in a Contractor's Financials Your bonding capacity is not a number a surety pulls out of the air. It is underwritten directly off your financial statements. Which means your contractor bonding financials are the single biggest cap on the size of the jobs you're allowed to bid. Here's the part nobody tells general contractors until it's too late: messy books don't just annoy your accountant. They quietly shrink your bonding line. The surety can't price a risk it can't read, so when your numbers are sloppy, they assume the worst and bond you smaller. You lose the $4M job not because you can't build it, but because your balance sheet says you can't. So before you bid bigger, you need to know what the underwriter is actually staring at. A surety isn't a lender — they're betting you'll finish Banks lend you money and expect it back with interest. A surety doesn't lend you anything. A surety bond is a three-party promise that you will complete the job , and if you don't, the surety pays to get it finished — then comes after you to recover every dollar. That changes what they care about. A lender wants to know you can repay. A surety wants to know you won't blow up mid-project. So the whole review of your surety bond financial requirements is really one question dressed up in spreadsheets: if this contractor takes on more work, do they have the financial cushion to absorb a bad job without going under? Everything below is them answering that. Your WIP schedule is the document they read first If you take one thing from this post: fix your work-in-progress schedule. A WIP schedule lists every open job with the contract value, costs incurred to date, your estimate to complete, and how much you've billed. From that, the underwriter calculates whether each job is overbilled (you've invoiced ahead of the work — borrowing from the future) or underbilled (you've done work you haven't billed — a hidden asset, or a sign you're losing control of billing). WIP schedule bonding analysis is where sureties find the truth your income statement hides. A contractor can look profitable on paper while sitting on a stack of jobs bleeding money. The WIP shows it. A pattern of jobs whose estimated costs keep climbing tells the underwriter you can't estimate — and estimating is the whole business. Underbillings that pile up scare them just as much. It usually means your billing is disorganized, which means your cash is tied up in work you've already paid for. Clean, accurate, job-by-job WIP is the difference between a surety that trusts your numbers...
