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August 12, 2026 · Castro CPA, PLLC

What Your Surety Underwriter Actually Does With Your Financial Statements

Sureties rebuild your balance sheet before setting your bond program. What they subtract, what they add back, and how it sets your single-job and program limits.

What Your Surety Underwriter Actually Does With Your Financial Statements

The financial statements you send your surety are not the financial statements your surety uses.

Before an underwriter sets your single-job limit or your overall bond program, they rebuild your balance sheet to arrive at their own measure of surety working capital. Some current assets are discounted or removed. One asset that is not part of GAAP working capital at all may get credit. The result is frequently well below the working capital printed on your own statements, and that difference translates directly into the size of project you can bond.

For contractors, these adjustments explain something that otherwise makes no sense: how a company with a healthy-looking balance sheet still runs into a ceiling on the work it can bond.

One note before the details. Treatment varies, not only between surety companies, but between local offices of the same carrier. What follows is how the industry generally works, and a few items below are worth asking your agent about by name.

What Is Surety Working Capital?

Under normal accounting, working capital is simple:

Current assets − current liabilities = working capital

Underwriters take the analysis a step further. Their question is not whether an asset meets the accounting definition of "current." It is whether that asset provides liquidity that could actually help you finish bonded work. An asset that cannot pay a subcontractor next month does not do that, regardless of where it sits on the balance sheet.

So they start with your reported figures and adjust. On the liability side there is no relief. Current liabilities are generally accepted as reported. All the movement is in assets.

Receivables More Than 60 Days Old

Older receivables receive reduced or no credit, and the common threshold is around 60 days rather than the 90 most contractors assume.

This is worth sitting with, because it changes what collections are for. If your average collection cycle runs 75 days, a meaningful slice of your receivables is being written out of your capacity every year. Not because anyone doubts you will collect, but because the aging bucket says so. Under a 10× rule of thumb, every dollar you move from over-60 to under-60 is worth roughly ten dollars of single-job capacity.

Officer and Related-Party Receivables

Amounts owed to the company by owners, officers, employees, or affiliated businesses generally receive little or no credit.

The underwriting logic is straightforward: money that has left the operating company is not available to complete bonded projects. But there is a second issue. Related-party balances raise a question about whether capital has been moved out of the entity that carries the bond obligation, and that question lands under character rather than capital. Contractors with meaningful related-party balances should understand the treatment before year-end.

Notes Receivable

Notes receivable are adjusted based on collectability. If the underwriter is not confident the note converts to cash when needed, it receives reduced or no value.

Inventory

Location matters more than amount. Material already staged at a job site and tied to completing a project receives more favorable treatment than inventory sitting in your yard or warehouse. A portion of off-site inventory is commonly discounted.

This is one of the few adjustments a contractor can plan around operationally, and almost nobody knows the distinction exists.

Prepaid Expenses

Prepaid insurance, prepaid bond premiums, and similar items are legitimate current assets under accounting standards. From the surety's perspective they provide no liquidity (you cannot use prepaid insurance to make payroll), so they are commonly removed in full.

Officer Life Insurance Cash Value

One adjustment works in your favor.

The cash surrender value of company-owned officer life insurance is classified as a long-term asset under GAAP, which means it is nowhere near your reported working capital. A surety may give you credit for it anyway, because it represents money the company could actually reach.

If your company owns policies with meaningful cash value and your bonding agent has never been told, you are giving up credit for something you have already paid for.

Example: Book Working Capital vs. Surety Working Capital

Consider a contractor with the following balance sheet.

Current assets Amount
Cash $850,000
Contract receivables, 60 days or less 2,735,000
Contract receivables, over 60 days 465,000
Retainage receivable 780,000
Costs in excess of billings 285,000
Inventory, at job site 70,000
Inventory, not at job site 50,000
Prepaid expenses 165,000
Note receivable, officer 200,000
Total current assets $5,600,000
Current liabilities (3,707,000)
Book working capital $1,893,000

From a financial reporting standpoint, this contractor has roughly $1.9 million of working capital. Now the underwriter's version:

Surety adjustment Amount
Book working capital $1,893,000
Less receivables over 60 days (465,000)
Less 50% of off-site inventory (25,000)
Less prepaid expenses (165,000)
Less officer receivable (200,000)
Plus officer life insurance cash value 145,000
Adjusted surety working capital $1,183,000

Nothing on the financial statements changed and nothing on them is wrong. The surety is applying a different standard, and the result is working capital about 38% below the reported figure.

How Does Retainage Affect Bonding Capacity?

Retainage may be the single most important variable in the entire calculation, and it is the one nobody asks about.

Sureties evaluate the age of contract receivables. Retainage is over 60 days old almost by definition. That is the whole point of retainage. But it is also fundamentally different from an overdue receivable, because it is withheld under the terms of the contract rather than because someone is slow to pay. Carriers handle that distinction differently. Some treat retainage separately from aged receivables; others apply a more conservative adjustment.

In the example above, the contractor carries $780,000 of retainage. If the surety credits it, adjusted working capital is $1,183,000. If the surety excludes it, adjusted working capital falls to $403,000, a 79% reduction from book, off the same set of financial statements.

The question to ask your bonding agent: how does my surety treat retainage when calculating working capital?

Do not assume the answer is the same across carriers, and do not assume it is the same as the answer your competitor got.

How Is Bonding Capacity Calculated?

There is no single formula. Underwriters weigh a range of factors:

  • Working capital and net worth
  • Profitability and cash flow
  • Backlog and its expected margin
  • Individual project size
  • Job and customer concentration
  • Management experience and depth
  • How completed jobs performed against their original estimates
  • Banking relationships
  • Character and reputation

Within that, the common industry rule of thumb runs off two different bases:

Single-job capacity: roughly 10× adjusted working capital

Total bond program: roughly 10× adjusted net worth

Two different measures for two different limits, which surprises most contractors. Working capital governs how large a single job you can bond. Net worth governs how much bonded work you can carry at once.

Applied to the example, where adjusted net worth is $2,775,000 (see the next section):

Bonding measure Approximate capacity
Single job, on $1.183M adjusted working capital $11.8 million
Single job, if retainage is excluded $4.0 million
Total program, on $2.775M adjusted net worth $27.8 million

Note where the constraint actually sits. This contractor's program ceiling is comfortable; his single-job ceiling is what binds, and it swings by nearly $8 million on one treatment question. If he is chasing a $12 million project, the retainage answer decides whether he can bond it.

These are guidelines, not guaranteed limits.

Sureties May Adjust Net Worth Too

Working capital is not the only measure that gets rebuilt. Underwriters commonly look at tangible net worth, removing goodwill and intangibles, related-party receivables, and investments in affiliated entities.

Assume the contractor above reports $3.4 million of equity, and $625,000 of it consists of items the surety excludes. The program calculation then works off roughly $2.775 million instead.

This matters most for contractors who hold real estate or equipment in separate entities. The building owned by your related real estate LLC and leased back to the operating company may be genuinely valuable to you, but that equity does not support the bond program of the company signing the contracts.

What Sureties Look For in a WIP Schedule

The balance sheet establishes financial capacity. Your WIP schedule tells the underwriter whether your job performance supports it.

Underwriters recalculate percentage complete job by job:

Costs to date ÷ estimated total costs = percentage complete

Then they compare their answer to yours. A schedule that does not reconcile internally raises questions about the reliability of every estimate on it, and unexplainable numbers do more damage than a bad job does. If anything is deliberately held out of the calculation, such as uninstalled materials, give it a visible column rather than a footnote.

They also compare schedules across reporting periods, which is how profit fade becomes visible. They look at it two ways: how a job was originally estimated versus what it actually earned at completion, and for a job still running, what you estimated at the balance sheet date versus what it eventually produced.

One difficult job is not alarming. A pattern of jobs finishing below their original margins points at estimating, project management, or cost coding, and the pattern is visible to them even when your portfolio totals look stable.

Financial Warning Signs Sureties Watch

Once bond credit is in place, monitoring continues through periodic visits to your office and job sites, monthly internal financials, and annual or quarterly statements from your CPA. What they watch for:

Growing contract assets. Underbillings that keep climbing suggest slow billing, unapproved change order work, or estimates that have not been updated.

Large contract liabilities without corresponding cash. Billing ahead is normal. Significant overbillings with little cash to show for them raises the question of where the money went.

Increased bank borrowing, particularly a line of credit that never returns to zero. That is functionally long-term debt sitting in current liabilities.

Overhead growing while backlog declines. One of the more reliable predictors of trouble, because the fixed cost stays after the revenue leaves.

Profit fade, repeated across jobs.

Payment bond claims from subs and suppliers becoming more frequent. Worth understanding clearly: every claim filed against your payment bond is visible to your surety. A pattern of them says you are not paying people on time, whatever your statements show.

Negative operating cash flow. Profit that never converts to cash means something is being financed.

Owner compensation that looks excessive, and that includes distributions and loan proceeds, not just salary. From the underwriter's seat, owners taking out more than the business supports signals that management is not committed to the company's long-term stability.

Why Backlog Matters

Almost everything on your financial statements is historical. By the time an underwriter reads them, much of the information is somewhere between three and fifteen months old.

Backlog is the exception. It is the only forward-looking figure in the package, and it tells the underwriter:

  • How much work is already under contract
  • What margin that work is expected to carry
  • Whether revenue is concentrated in a few jobs or customers
  • Whether the business is growing or shrinking
  • Whether your financial resources can support what is coming

That is why a thin backlog disclosure is a wasted opportunity. It is the one place your statements get to speak about the future rather than the past.

Why Your CPA's Report Matters

The surety reads the accountant's report before the numbers.

Going Concern Disclosures

A going concern disclosure is close to a hard stop. Most sureties will decline bond credit outright when the accountant concludes substantial doubt exists about the company's ability to continue operating.

This is not a factor to be managed after the fact. If there is any chance the question is live, it needs to be discussed with your CPA and your agent well before the report is issued, because once the statements are out, your options narrow considerably.

Supplementary Information

Construction financial statements usually present the WIP schedule and other job-level schedules as supplementary information. Your accountant either takes responsibility for that information in the report or disclaims it.

Sureties rely heavily on job-level detail, and many will not extend bond credit (or will give the contractor limited credence generally) when the outside CPA disclaims or accepts no responsibility for exactly the schedules the underwriter needs most.

If you do not know which way your report reads on this, look. It is one paragraph, and it carries more weight than most contractors realize.

How Contractors Can Improve Their Surety Position Before Year-End

Most of what affects surety working capital can be managed before the balance sheet date. That does not mean manipulating the statements. It means running the business with an understanding of how the surety measures financial strength.

Collect older receivables. With a 60-day cutoff, collections drive capacity as much as they drive cash.

Resolve officer and related-party balances. Repay them or document them properly as compensation or distributions. A loan to an owner costs you twice: once in working capital, once in tangible net worth.

Identify officer life insurance cash value and make sure your agent knows it exists.

Keep material at the job site where operations allow it. Off-site inventory is discounted; job-site material is not treated the same way.

Retain appropriate capital. Distributions beyond your tax liability reduce both liquidity and net worth, which means they reduce both limits at once.

Match financing terms to asset lives. Long-lived equipment financed on a short-term line sits in current liabilities and reduces working capital dollar for dollar. Terming it out can improve working capital immediately without changing anything economically.

Watch the timing of major equipment purchases. Cash counts in full; equipment does not. A large cash purchase in December reduces working capital even when the purchase makes complete operational sense.

Deliver statements promptly. Sixty to ninety days after year-end is a strong signal. Statements arriving in May invite questions about your records regardless of what they say.

Send an explanation with the schedule. One page covering fade by job and its causes, any loss accruals, and how you treated change orders and stored materials. It costs an hour and changes the tone of the review.

Don't Try to Manufacture the Number

Experienced underwriters compare periods, and the patterns are familiar:

  • A year-end receivable balance that reverses in January
  • Related-party balances temporarily cleared around the balance sheet date
  • Unsupported increases in contract values
  • Estimated margins improving across several jobs at once with no project developments behind it
  • Transactions entered primarily to improve the year-end presentation

The distinction matters. Managing working capital ahead of year-end is ordinary financial management and underwriters expect it. Constructing a picture that reverses the following month is a character finding, and character is the underwriting factor with the longest memory.

The Two Questions Every Contractor Should Ask

Most contractors have seen their financial statements. Far fewer have seen what their surety does to them.

1. Can you show me the working capital calculation the underwriter used on my most recent financial statements?

2. How does this carrier treat retainage?

Most agents will answer both. Those two answers usually reveal what is actually limiting your capacity, and everything you might do about it has to happen before your next balance sheet date.

Frequently Asked Questions

What is surety working capital? The working capital figure an underwriter uses after adjusting a contractor's reported current assets. It can differ significantly from GAAP working capital, and it is generally lower.

How is bonding capacity calculated? There is no universal formula. A common rule of thumb is roughly 10 times adjusted working capital for a single project and roughly 10 times adjusted net worth for the total program, with judgment applied for backlog, concentration, management depth, and past job performance. Multiples vary by carrier and by local office.

What assets might a surety remove from working capital? Commonly: receivables over about 60 days old, receivables from employees or related parties, notes of doubtful collectability, a portion of inventory not located at a job site, all prepaid expenses, and any other current asset unlikely to convert to cash. The cash surrender value of officer life insurance is often added back even though GAAP treats it as long-term.

Does retainage count toward surety working capital? It depends on the carrier, and it is often the largest single variable in the calculation. Retainage is aged by contract rather than by slow payment, and some underwriters treat it separately for that reason. Ask your agent specifically how yours handles it.

Do contractors need audited financial statements for bonding? Not necessarily. Smaller programs often accept reviewed statements; larger programs generally require reviewed or audited statements. Sureties also weigh whether the accountant takes responsibility for the supplementary job schedules rather than disclaiming them.

What happens if my statements include a going concern disclosure? Most sureties will decline bond credit. If the question is even possible, raise it with your CPA and your agent before the report is issued.

Why does a surety care about my WIP schedule? It shows current job performance, estimated profitability, and backlog, and it lets the underwriter test whether your percentage-complete calculations hold up and whether jobs are experiencing profit fade.

The Bottom Line

Your surety is working from a different working capital number than the one on your balance sheet, and the gap usually comes down to four things: receivables past 60 days, prepaid expenses, money that has moved between you and the company, and off-site material. One asset (officer life insurance cash value) works in the other direction. And the treatment of retainage alone can change the answer by a factor of three.

Understand the calculation before your year-end statements are issued. Ask your bonding agent to walk you through the adjusted working capital from your last statement, then ask how the carrier treats retainage. Once you know how the surety reads your balance sheet, decisions about collections, distributions, debt structure, and equipment timing all get easier.


Mario Castro, CPA is the Managing Member of Castro CPA, PLLC in Celina, Texas. Castro CPA provides audits, reviews, and compilations for construction contractors across Texas.

Heading into a bonding review? If you have not looked at your financial statements from the surety's perspective, it is worth doing before year-end. Contact Castro CPA to discuss your construction financial reporting and bonding requirements, or learn more about construction CPA services for contractors.

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