How business debt affects a contractor's bonding capacity

Your surety underwrites the same company your lender does, with a different question in mind. A lender asks whether you can repay. A surety asks whether you can finish the job, because if you cannot it pays to complete and then comes after you under the indemnity agreement you signed. That difference explains how it reads your debt.

What capacity is built on

Most surety analysis rests on a short list: working capital, tangible net worth, the credibility of your work-in-progress schedule, your record on similar scopes, and the personal indemnity behind the company. Limits are sized off those, and working capital tends to be the binding constraint for growing contractors. Tangible net worth is where intangibles get stripped out — goodwill from an acquisition, capitalised software and related-party receivables usually come off first.

How different debt lands

The sequencing mistake

The failure is not usually the debt. It is finding out about it late. A contractor takes a fast advance in June to cover a payroll gap, says nothing, and the surety sees it in the year-end statement in March along with the working capital hole it left. A manageable conversation becomes a capacity reduction in the middle of bid season.

Call the agent first. Sureties can often structure around a need they know about: a job-specific bond, a funds control arrangement, a bond on a smaller scope while the balance sheet recovers.

What to have ready

• Current internal financials and the latest CPA-prepared statements
• A work-in-progress schedule showing over- and under-billings
• The proposed loan or advance documents, including the security agreement
• What the money funds and how it repays
• Aged receivables including retainage

What to ask, and what to refuse

Ask your agent, in order: what does this do to working capital as you calculate it, what does it do to single-job and aggregate limits, and would a different structure, term or subordination change your answer. Ask the lender whether it will file a blanket UCC or limit its lien to the financed asset, and whether it will sign an intercreditor or subordination agreement if the surety asks.

Refuse to take high-frequency repayment money mid bid season without telling your surety. Refuse a blanket lien when a specific one will do. And refuse to treat bonding capacity as fixed; it is an underwriting output, and structure changes it.

What it costs in capacity, in numbers

Illustrative only — current assets of 1,200,000 against current liabilities of 800,000, so working capital is 400,000. Sureties commonly size aggregate capacity as a multiple of working capital; the multiple varies by surety and by contractor, so take ten times purely as an arithmetic placeholder. That is 4,000,000 of aggregate capacity.

Now take a 150,000 advance repaying 195,000, and spend the 150,000 on a payroll gap. The cash arrives and leaves. What remains is the obligation, all of it falling due inside twelve months, so it lands in current liabilities. Working capital drops to 205,000 and the same multiple gives 2,050,000.

150,000 of financing removed 1,950,000 of bonding capacity. The precise figures depend on how your accountant records the obligation and how your surety calculates, and both are worth asking about by name. The shape is not in dispute, and it is why a surety reacts to this product the way it does.

What subordination actually does

Owner money is the counter-example, and it is worth understanding why. A loan from you to the company is a liability like any other, so on its own it does little for working capital. Formally subordinated to the surety, in a document the surety accepts, it can be treated closer to equity — which moves it out of the calculation that is constraining you.

Two practical points. The subordination has to be signed and in the file before the statement date it is meant to affect, not produced afterwards. And it will restrict repayment to you, which is the trade: the money is locked in until the surety releases it.

How to tell your capacity is about to be a problem

Before your agent raises it, these are visible in your own numbers:

• Working capital falling while backlog rises. Growth consumes cash, and a surety reads a growing backlog against a shrinking balance sheet as the classic failure pattern.
• Underbillings growing on the work-in-progress schedule. Cost incurred ahead of billing is cash spent and not collected.
• Retainage rising as a share of receivables. It is an asset your surety may discount and your bank may not lend against.
• Any single job approaching a large share of your aggregate limit.
• Payables ageing while receivables do not. That is the ratio that precedes a payroll gap, and a payroll gap is what makes a fast advance look necessary.

Catching any of those a quarter early is what turns the conversation with your agent into planning rather than disclosure.