At some point, almost every growing contractor runs into the same wall: a project comes up that’s bigger than anything you’ve bid before, and your bonding agent tells you your current program won’t support it. It’s a frustrating conversation, especially when your work is solid and your reputation is good. But bonding capacity isn’t only about your character and reputation, it’s about what your financial statements say, and whether they say it clearly enough for a surety to trust.
The good news is that bonding capacity isn’t fixed. It moves as your financial statements do, and there are specific, understandable things sureties look for. Knowing what they are lets you work toward a bigger program deliberately, instead of finding out the hard way that you’ve hit a ceiling.
What Sureties Are Actually Looking At
When a surety underwrites your bonding program, they’re really asking one question: if this job goes badly, can this company absorb the hit and still finish the work? Your financial statements are a significant part of how they answer that. A few numbers matter more than the rest:
Working capital = the difference between your current assets and current liabilities. Tells a surety how much cushion you have to fund a job before you get paid for it. Thin working capital is one of the fastest ways to hit a bonding ceiling, even if your overall balance sheet looks fine. Some numbers within working capital also matter more: For example, “Cash is king” is very much still applicable. If there is a tight decision between spending cash on a piece of equipment or financing it, the working capital and cash impact should be a part of your decision-making process.
Net worth gives the surety a sense of your company’s staying power. It’s the equity built up over years of retained earnings, and it’s a rough proxy for how much of a loss the company could absorb without going under.
Debt-to-equity ratio shows how leveraged you already are. A contractor carrying a lot of debt relative to equity has less room to take on the risk of a large bonded project, and sureties will factor that into how much additional exposure they’re willing to take on.
None of these numbers exist in isolation. A surety is looking at the trend across several years, not just the most recent statement. Which is exactly why the quality of those statements matters as much as the numbers themselves.
Compilation, Review, or Audit: Why the Difference Matters to Your Bond
Not all financial statements carry the same weight with a surety, and this is where a lot of owners get surprised. There are three common levels of CPA-prepared financial statements:
- A compilation presents your numbers in the proper format but doesn’t involve any verification by your CPA. It’s the lowest level of service, and it’s likely to pass for smaller bonding needs.
- A review involves some analytical procedures and inquiry — your CPA is providing limited assurance that nothing appears materially wrong, without the full testing of an audit.
- An audit is the highest level of assurance. Your CPA independently tests and verifies the numbers, which gives a surety much more confidence in what they’re looking at.
As your bonding needs grow, many sureties will require you to step up from a compilation to a review, and eventually from a review to an audit, simply because the dollar amounts at risk get large enough that they need more assurance behind the numbers. This isn’t a formality, it’s often the specific thing standing between your current program and the next tier of work you want to bid.
Why Your WIP Schedule Keeps Coming Up
If you read our companion piece on percentage-of-completion accounting, this will sound familiar: your WIP schedule is one of the first things a surety’s underwriter reviews, and a consistent, well-supported WIP schedule does more for your bonding capacity than almost anything else in the statements. Underwriters aren’t just checking whether this year’s numbers look good. They’re checking whether your estimates have historically held up, whether over- and under-billings make sense, what your capacity for existing and additional work is, and whether the story your WIP schedule tells matches what actually happened on your jobs. A track record of accurate, believable WIP reporting builds trust that translates directly into bonding capacity over time.
Steps You Can Take Now
Bonding capacity is built over time, not fixed overnight. However, there are concrete things you can start on before your next renewal:
- Build working capital deliberately. Retaining earnings in the business rather than distributing everything out strengthens the ratio sureties watch most closely.
- Keep job cost estimates current. Estimates that are reviewed and updated regularly, not just set once and forgotten, are what make your WIP schedule believable.
- Talk to your CPA about the right level of assurance before you need it. Stepping up to a compilation, from a compilation to a review, or a review to an audit, takes planning. Starting that conversation ahead of a big bid gives you options you won’t have if you wait until a surety demands it.
- Bring your surety and banker into the conversation early. They can often tell you exactly what would move the needle on your program, rather than you guessing.
A Team Effort
Your CPA, your bonding agent, and your banker each see a different piece of this picture, but they’re all reading the same financial statements. The contractors who grow their bonding capacity fastest tend to be the ones who treat these relationships as a team working toward the same goal, rather than three separate boxes to check.

Wondering what it would take to move up to the next bonding tier? Reach out to Logan Kalis. We help contractors across Minnesota, Wisconsin, Colorado, and beyond build the financial statement track record their bonding programs are asking for.