Bonding for CPAs

Your Financial Statements Are the Foundation of Every Bonding Decision Your Contractor Clients Face

If you serve contractors, the financial statements you prepare are not just a tax document or an annual compliance exercise. They are the single most important factor in determining whether your client can get bonded, how much bonding capacity they receive, and what rates they pay. Every surety underwriting decision starts with your work.

Most CPAs who serve contractors understand this at a general level. But the specifics of how surety underwriters read financial statements, what ratios they calculate, what formats they prefer, and what red flags they look for are not part of standard accounting education. This page is designed to bridge that gap. It explains how surety bonding works from the CPA's perspective, what the surety expects from the financial statements you prepare, and how you can position your contractor clients for the best possible bonding outcomes.

At Grit Insurance Group, we work directly with our clients' CPAs as part of managing the bonding relationship. We view the CPA as a critical partner, not just a document provider. This page is part of that partnership.

How Surety Bonding Works (A Quick Primer for CPAs)

A surety bond is a three-party financial guarantee. The contractor (principal) promises to fulfill an obligation, usually completing a construction project. The project owner (obligee) requires the guarantee. The surety company provides it by issuing a bond that guarantees the contractor will perform.

The critical distinction from insurance is that the surety expects zero losses. They are not spreading risk across a pool. They are making a specific financial judgment that this contractor will perform on this project. If the surety has to pay a claim, the contractor is personally liable for reimbursement under the General Agreement of Indemnity.

Because the surety is making an individual credit decision on each contractor, the underwriting process is rigorous. The surety evaluates three areas, known in the industry as the three C's: Capital (financial strength), Capacity (ability to perform), and Character (reputation and trustworthiness). Your work as the CPA directly drives the Capital evaluation, which is typically the most heavily weighted factor. For a deeper explanation, see our Surety Underwriting page.

What Surety Underwriters Look for in Your Client's Financial Statements

When a surety underwriter opens your client's financial statements, they are running a specific evaluation. Here is what they focus on.

Working capital. Current assets minus current liabilities. This is the starting point for most capacity calculations. Many sureties use a working capital multiplier (typically 10x to 15x) to set the contractor's aggregate bonding limit. A contractor with $500,000 in working capital might receive $5 million to $7.5 million in aggregate capacity. Growing working capital is the most direct path to higher bonding limits for your clients.

Net worth. Total assets minus total liabilities. The surety uses net worth as a measure of long-term stability and as a backstop against losses. Growing net worth, driven by retained earnings, signals a healthy business that is building equity rather than distributing all profits.

Profitability. Consistent profitability demonstrates the contractor's ability to estimate accurately, manage costs, and operate efficiently. One bad year can be explained. Two consecutive loss years is a serious red flag that will limit capacity or trigger a program review.

Cash flow. The surety looks at actual cash movement, not just reported profits. A contractor can be profitable on paper but cash-poor if receivables are slow, retainage is high, or overbillings are masking cash flow problems.

Debt-to-equity ratio. High leverage reduces the financial cushion available to support bonded work. The surety wants to see manageable debt levels relative to equity.

Receivables aging. Receivables over 90 days are often discounted or excluded from the working capital calculation. Clean, current receivables strengthen the balance sheet. Aged receivables weaken it.

Overbillings vs underbillings. The surety examines the relationship between billings and percentage of completion. Excessive overbillings (billings significantly ahead of work completed) suggest the contractor is using project funds to finance operations, which is a red flag. Underbillings (work completed ahead of billings) can indicate cash flow risk but are generally viewed more favorably than overbillings.

How the Level of CPA Assurance Affects Bonding Capacity

The level of assurance behind your client's financial statements directly affects how much capacity the surety will extend. Sureties assign credibility based on the engagement level.

Compiled statements are acceptable for small bond programs, typically up to $500,000 to $1 million in single job capacity. The surety knows the CPA organized and formatted the data but did not independently verify it.

Reviewed statements are the standard for mid-size bond programs, generally $1 million to $5 million in single job capacity. The CPA has performed analytical procedures and inquiries that provide limited assurance the financials are free of material misstatement.

Audited statements are required for large bond programs. The CPA has performed detailed testing and verification. Audited financials carry the highest credibility and support the highest capacity.

The transition from one level to the next is a conversation you should have with your contractor clients proactively. If a client's bond program is growing and they are still on compiled statements, they may be leaving capacity on the table. Recommending the move to reviewed or audited financials, and explaining the bonding benefit, is a high-value advisory conversation that strengthens your client relationship.

Why Percentage-of-Completion Accounting Matters for Bonding

Sureties strongly prefer percentage-of-completion (POC) accounting for contractors with bond programs. Under POC, revenue and costs are recognized proportionally as work progresses, which gives the surety a more accurate picture of the contractor's financial position at any point during the year.

Contractors on cash basis or completed-contract method may show significant distortions in their financial statements. A contractor who completes a large project in December but does not receive final payment until January will show very different numbers depending on the accounting method. POC smooths these distortions and provides the surety with the most reliable data for underwriting decisions.

If your contractor clients are on cash basis or completed-contract and their bond programs are growing, transitioning to POC is one of the most impactful recommendations you can make for their bonding capacity. The transition requires careful planning, particularly around the work-in-progress schedule that drives POC revenue recognition, but the bonding benefit is substantial.

The WIP Schedule and Its Relationship to Your Financial Statements

The work-in-progress (WIP) schedule is the document that connects your client's project-level performance to the financial statements you prepare. It lists every active project with the contract amount, costs incurred, billings to date, estimated cost to complete, and percentage of completion.

For sureties, the WIP is the second most important document after the financial statements. They use it to assess available capacity, evaluate project profitability, and check consistency with the balance sheet and income statement.

As the CPA, your role in the WIP process is critical. The WIP numbers should reconcile with the financial statements. Inconsistencies between the WIP and the balance sheet create questions during underwriting that slow down approvals and erode the surety's confidence. Whether you prepare the WIP yourself or review one your client prepares internally, making sure the numbers tie is essential.

For more on how sureties use the WIP, see our Work in Progress (WIP) Reporting page.

The Tax Minimization vs Bonding Capacity Tradeoff

This is one of the most important conversations you can have with your contractor clients who need bonds. Aggressive tax minimization strategies that reduce reported income and equity can directly limit bonding capacity.

The surety looks at financial strength through the lens of the balance sheet and income statement. If you have structured the financials to minimize taxable income through accelerated depreciation, maximized deductions, or other legitimate tax strategies, the reported numbers may not reflect the contractor's true financial strength. The surety underwrites based on what the statements show, not what the numbers could have been under different accounting treatment.

This does not mean your contractor clients should pay more taxes than necessary. It means the tax strategy and the bonding strategy need to be considered together. A contractor who saves $50,000 in taxes but loses $2 million in bonding capacity has not made a good tradeoff. The right balance depends on the client's bonding goals, and it is a conversation that works best when the CPA, the contractor, and the bond agent are all at the table.

Timeliness Matters

Sureties expect to receive your client's year-end financial statements within 90 to 120 days of the fiscal year end. If statements are consistently late, the bond agent is left without current data when the contractor needs a bond or a capacity increase. Delays in financial statement delivery directly translate to delays in bonding approvals and missed project opportunities.

If your firm's workload makes it difficult to deliver contractor financials within this window, communicate the timeline to the bond agent so they can set expectations with the surety. A contractor whose CPA provides a realistic timeline upfront is in a better position than one whose financials arrive six months late with no explanation.

How to Work With the Bond Agent

The most effective bonding outcomes happen when the CPA, the bond agent, and the surety underwriter are communicating directly. As the CPA, you do not need to become a surety expert. But being willing to take a call from the bond agent or the underwriter when questions arise about your client's financials can resolve issues in minutes that would otherwise take weeks to sort out through the contractor.

At Grit, we regularly coordinate with our clients' CPAs. We may call to discuss how a specific item on the balance sheet should be interpreted, ask about the status of year-end financials, or discuss the impact of a potential accounting method change on the client's bonding capacity. These conversations are always in service of the client's best interest, and they produce better outcomes than working in silos.

If you have contractor clients who need bonding and you want to connect with a bond agent who values the CPA relationship, we would welcome the conversation.

 CPA Relationships (contractor facing)

 Financial Strength and Bonding

 How Advisors Help Contractors Qualify for Bonds