PRACTICAL GUIDE
A CPA’s Guide to Maximizing Construction Client Bonding Capacity
Bonding capacity starts with a financial story an underwriter can understand and trust. This guide explains how the balance sheet, income statement, and work-in-progress schedule fit together—and where a CPA can make that story clearer.
About this guide
adapted from a guide I wrote for a surety brokerage.
I. Understanding performance and payment bonds
Performance and payment bonds are common requirements on public construction and many private projects. They address different obligations under a construction contract.
| Bond | What it addresses |
|---|---|
| Performance bond | The contractor’s performance of the bonded contract. The surety’s obligations and available remedies depend on the bond and applicable terms. |
| Payment bond | Payment obligations to eligible subcontractors and suppliers. The bond and applicable law determine coverage and claim requirements. |
- Owner or obligee: the party receiving the protection of the bond.
- Contractor or principal: the party whose obligation is bonded.
- Surety company: the party underwriting the risk and issuing the bond.
For a CPA advising a contractor, the practical question is how to demonstrate that the business has the financial resources, operating discipline, and experience to complete its existing and proposed work.
II. Start with the balance sheet
Working capital and equity are important indicators of financial strength. Begin with a complete, accurate balance sheet before discussing any underwriting adjustments.
An underwriter may scrutinize collectibility, related-party receivables, prepaid expenses, inventory, underbillings, and the timing of liabilities. Treatment varies by surety and circumstance. Real obligations, including accrued expenses, should be reflected in the accounting records.
Equity—retained earnings and owner capital—helps explain how much financial pressure the business can absorb. Review it alongside liquidity, debt, cash flow, and the contractor’s work program.
| Item | Amount |
|---|---|
| Current assets | $900,000 |
| Current liabilities | $400,000 |
| Reported working capital | $500,000 |
| Underwriting adjustment | ($75,000) |
| Adjusted working capital in this example | $425,000 |
A single-job limit describes the size of an individual project a surety is prepared to consider. An aggregate limit addresses the contractor’s overall work program. Neither is determined by a universal working-capital multiple. Past project size, similar experience, financial quality, backlog, and performance all belong in the discussion.
III. Read profitability alongside revenue
Revenue alone does not explain a contractor’s ability to withstand a difficult job. Sustainable profitability, job-level margins, and the reasons those margins change give the underwriter a more useful picture.
A smaller contractor with consistent earnings may present a very different risk from a larger contractor operating on thin margins. Avoid drawing a conclusion from size or one year’s net income in isolation.
- Identify unusual or nonrecurring items and explain their effect on reported results.
- Reconcile job-cost reporting to the financial statements and WIP schedule.
- Apply overhead allocations consistently and document the approach.
- Explain material changes in job margins, estimates, and operating expenses.
IV. Use WIP as a forward-looking tool
The work-in-progress schedule brings contract value, costs, estimated costs to complete, revenue, and billings into a job-level view. It helps an underwriter evaluate the work still ahead of the contractor.
| Signal | Questions to investigate |
|---|---|
| Underbillings | Are billings delayed? Are change orders unresolved? Are progress and revenue estimates supportable? |
| Overbillings | How do billings compare with earned revenue and remaining project costs? What cash will the job still require? |
| Profit fade | Why has expected job profitability declined? Did estimated costs, scope, productivity, or pricing change? |
Underbillings and overbillings are prompts for investigation, not automatic conclusions about a job. Understand the contract, billing arrangements, estimate quality, and project circumstances before interpreting a balance.
- Prepare and review WIP on a regular monthly or quarterly schedule appropriate to the business.
- Check estimated progress and remaining costs with the people running the jobs.
- Reconcile the schedule to the accounting records and explain any differences.
- Retain prior versions so changes in contract value, cost estimates, and expected profit remain visible.
V. Put cash, debt, and distributions in context
Cash, earnings, and working capital describe different aspects of the business. A contractor can report profit while still facing collection delays, payroll requirements, equipment needs, or debt maturities.
- Cash: distinguish unrestricted cash from amounts unavailable for ordinary operations, and explain material seasonal requirements.
- Debt: disclose current maturities, repayment terms, security, guarantees, and other relevant obligations.
- Distributions: show how planned owner payments affect cash, working capital, equity, and the proposed work program.
- Financial statements: discuss the assurance level the surety expects, whether internal statements, a compilation, a review, or an audit.
In a simplified example, a business with $400,000 of net income and $350,000 of distributions adds $50,000 to equity before other changes. Review asset purchases, debt movements, collections, and other transactions separately to explain changes in working capital and cash.
A higher level of financial-statement assurance can support the underwriting review, but it does not guarantee a larger bond program. Timeliness, construction accounting experience, supporting schedules, and clear disclosures matter alongside the level of service.
VI. Understand the contractor’s operating model
| Operating model | Areas to explore |
|---|---|
| Civil or heavy contractor | Equipment requirements, payroll, production, utilization, project complexity, and the cash needed to perform the work. |
| General contractor that subcontracts most work | Subcontractor selection, contract administration, project controls, billing discipline, and the financial impact of subcontractor performance. |
These are broad descriptions, not underwriting classes with fixed multiples. Many contractors combine self-performed and subcontracted work. The financial review should reflect how the particular business operates.
VII. Five takeaways for CPAs
- Start with accurate financial statements and complete liabilities, then discuss underwriting adjustments separately.
- Review WIP regularly and explain changes in estimates, billings, and projected job profit.
- Model distributions and capital needs alongside the work the contractor plans to pursue.
- Keep reporting timely, supported by job-level detail and clear disclosures.
- Communicate with the surety agent before larger bids, significant distributions, or major changes in the business.
The goal is a coherent, supportable explanation of the contractor’s capacity to perform. A strong working relationship among the contractor, CPA, and surety agent makes that explanation easier to maintain as the business grows.
Common questions
- Does more working capital guarantee more bonding capacity?
- No. The surety considers the contractor, backlog, job performance, financial presentation, and its own underwriting approach.
- Should a CPA use a fixed capacity multiplier?
- Treat a multiplier only as an explicitly labeled illustration. Actual capacity depends on the surety’s review.
- What should the contractor prepare before the meeting?
- Bring current financial statements, work-in-progress and backlog information, explanations for material changes, and the questions to discuss with the surety team.