You bid a $3 million job. Your surety capped you at $1.5 million single. You either walked away from $1.5 million of work or you joint-ventured it and gave up half the margin. Either way, you lost.
Here is the part most contractors do not realize: it is fixable. The contractors who break through the capacity ceiling are not luckier or better connected. They make four specific financial moves that almost nobody else makes.
This is the real playbook for moving from a $1 million single-job program to $5 million, $10 million, and beyond. No theory. No filler. The exact moves a surety underwriter looks at, what your CPA needs to do differently, and how long the whole thing actually takes.
Every bond program has two limits. Most contractors only know one of them.
Your single-job limit is the largest bond a surety will write on a single project. Your aggregate limit is the total bonded backlog they will support across all your active jobs at once.
The single-job number is the one most contractors quote. The aggregate is the one that quietly costs them the most work. You can have a $3 million single-job limit and still get capped at $5 million aggregate, which means you cannot run two $3 million jobs at the same time. That is a real problem the moment you try to grow.
Sureties usually set aggregate at about five times your single-job limit. So a $1 million single program is typically a $5 million aggregate. A $5 million single is roughly $25 million aggregate. The ratio drifts wider as your program matures and your performance history builds.
The reason is not skill. It is not work history. It is that most contractors are running a bond program designed for a smaller version of their business and nobody has told them what changes.
Four things move capacity:
The rest of this article walks through each one. None of these are mysterious. They are just the moves nobody bothers to coach a contractor on.
Most sureties size your single-job limit at roughly 10 to 15 times your adjusted working capital, and your aggregate program at roughly 15 to 20 times. Said another way, sureties usually want your working capital to equal at least 10% of your total bonded backlog.
The exact multiple varies by carrier, the type of work you do, your profit history, and how strong your indemnity package is. But the math holds across the industry. Working capital is the single biggest input to your capacity.
Working capital is current assets minus current liabilities. The "adjusted" part matters: sureties strip out related-party receivables, prepaid expenses, and underbillings older than 90 days. They also discount inventory and excess cash held for purposes other than the business. So your CPA-stated working capital and your surety-adjusted working capital can be very different numbers.
What kills working capital fast:
If you want a bigger program, this is where the work starts.
Industry rule of thumb: working capital should equal at least 10% of your aggregate bonded backlog.
| Aggregate Program | Working Capital Floor (10%) |
|---|---|
| $5M | $500,000 |
| $15M | $1.5M |
| $25M | $2.5M |
| $50M | $5M |
Sources: CFMA, NASBP, Surety Bond Associates. Directional industry consensus. Your surety underwriter sets the actual target.
This is the conversation we have with new commercial clients more often than any other. The CPA who has been doing your taxes for the last decade may be the single biggest reason your capacity is stuck.
Tax CPAs are paid to minimize your taxable income. Surety underwriters need to see your full earning power, your asset position, and your ability to perform on a backlog of work. Those two goals fight each other on every page of your statements.
Three things specifically:
Cash basis vs accrual. Sureties want accrual. They need to see what you have actually earned and what you actually owe at a point in time, not what has hit the bank account. Cash-basis statements are nearly useless for surety underwriting on anything beyond the smallest license bond.
Percentage-of-completion accounting. Construction CPAs build your jobs into your statements using percentage-of-completion. The surety needs this. It is the only way to see whether you are over-billed or under-billed across your active work, and it is the foundation of a usable WIP schedule.
Statement quality. Sureties expect your financial statement quality to grow with your program. Compiled statements may carry you to roughly $1 million in single-job capacity. Reviewed statements are the typical floor for any meaningful program, often required when single-job capacity passes $1 to $2 million. Audited statements become standard for programs above $5 to $10 million single, and are required for the largest contractors.
If you are pushing for a bigger program with a CPA who has never built a percentage-of-completion WIP schedule, you have already capped your capacity before the surety sees a single page.
If a surety underwriter only had time to look at one document, it would be your WIP schedule. It tells them everything: backlog quality, billing discipline, profit fade, and whether your management team has a real grip on the business.
A surety-ready WIP schedule shows, for every active job:
The over- and under-billings are calculated by comparing earned revenue to total billings. Over-billings show as a current liability on your balance sheet. Under-billings show as a current asset. Both should reconcile to your balance sheet line for line. If they do not, your underwriter spends time figuring out why instead of approving capacity.
One more number sureties watch closely: under-billings as a percentage of working capital. If under-billings exceed 25% of your working capital, that is a flag. It usually means you are funding jobs out of pocket that owners have not yet paid you for, and it can quietly drain the working capital your bond program is built on.
WIP is required at year-end and most surety partners want it again at six months. Active programs often produce it quarterly. The program-builders we work with treat WIP like a monthly P&L.
Sureties do not just underwrite the company. They underwrite the people behind it. The personal financial statement, or PFS, sits next to your company financials in every underwriting file.
The PFS lists what every owner personally owns and owes: real estate, retirement accounts, marketable securities, personal liabilities. Sureties want to see liquid net worth supporting the program. As a rough benchmark, many sureties want owner liquid net worth to roughly match the single-job limit they are extending.
Indemnity is the other half. When a surety writes a bond, the contractor signs a General Indemnity Agreement, or GIA. That document obligates the company, the owners, and usually the owners' spouses to make the surety whole if something goes wrong. Corporate indemnity from a parent company or affiliated entity is often layered on top.
Most contractors meet the indemnity ask without thinking about it. The contractors who plan ahead use it strategically. Strong personal balance sheets and clean indemnity unlock capacity that pure company financials cannot. Weak personal balance sheets cap programs even when the company is doing fine.
Sureties do not publish their underwriting standards, but the industry math points at a consistent shape. Here is the directional picture for a contractor moving up the program ladder.
Industry consensus, not a guarantee. Real underwriting is multivariate.
| Single-Job Limit | Aggregate (5x) | Working Capital | CPA Statement Level |
|---|---|---|---|
| $1M | $5M | ~$500K | Compiled (Reviewed preferred) |
| $3M | $15M | ~$1.5M | Reviewed |
| $5M | $25M | ~$2.5M | Reviewed (Audited preferred) |
| $10M | $50M | ~$5M | Audited |
Sources: CFMA, NASBP, Surety Bond Associates. Equity, profit history, and indemnity move every line of this table. Your bond agent and surety underwriter set the real targets.
The reason a surety will not just double your single-job limit on request is the cliff between tiers. Going from $3M single to $5M single is not a 67% jump in capacity. It is usually a different statement quality, a different working capital position, a different indemnity story, and often a different surety partner. The contractor who walks in with all four already in place gets the $5M program. The contractor who shows up with only one or two does not.
We help contractors qualify for bonds other agents turn down. Take our 2-minute scorecard and we will tell you exactly what your bonding program looks like - and what it could look like.
This part surprises most contractors. Perpetuation planning, the legal and financial roadmap for what happens to your business if you cannot run it, is a surety underwriting requirement at most program sizes.
The reason is simple. Sureties guarantee that your projects get finished. If something happens to the owner of a contracting business with $10 million of bonded backlog, somebody still has to finish those jobs. The surety wants a documented plan for who that is.
The components a surety wants to see:
Contractors who put a real perpetuation plan in place see this directly in their capacity numbers. It is one of the few things that demonstrably moves the needle on an underwriter's appetite without changing the company's financial profile. More on contractor perpetuation planning.
Realistic horizon: 12 to 36 months from "stuck" to "graduated."
The 90-day quick wins are real. Cleaning up under-billings, getting current on receivables, repositioning short-term debt to long-term, and tightening your WIP discipline can move your single-job limit by 20 to 30% inside a quarter. We have seen it happen.
The bigger jumps take time. Moving from compiled to reviewed statements is a year-long process at minimum, because most sureties want to see at least one full review-level year before they treat it as the new normal. Moving from reviewed to audited is the same story. Moving up a full tier, say $1M to $5M single, is typically a 24- to 36-month build.
If you need bigger bonds before your private surety market can support them, the SBA Surety Bond Guarantee program is a real option. As of 2026, SBA guarantees bonds up to $9 million for non-federal contracts and up to $14 million for federal contracts when a contracting officer certifies the guarantee is needed. The contractor pays SBA a 0.6% fee on the contract price, which is small relative to the work it unlocks. SBA-backed bonds open doors when private sureties cap your capacity, but the program is a stepping stone. Most contractors graduate to standard surety once their financials and track record build.
Sureties calculate capacity primarily off your adjusted working capital and equity, layered with profit history, indemnity strength, and the type of work you do. As a rule of thumb, single-job limits are roughly 10 to 15 times working capital and aggregate programs are roughly 15 to 20 times.
Single-job capacity is the largest bond a surety will write on one project. Aggregate capacity is the total bonded backlog they will support across all your active jobs at once. Aggregate is usually about five times your single-job limit.
Industry math points at roughly 10% of your aggregate program. A $5 million single-job program is typically a $25 million aggregate, which usually asks for around $2.5 million in working capital. The actual number varies by surety, profit history, and indemnity.
Sometimes. If your current CPA is willing to learn percentage-of-completion accounting and produce a surety-ready WIP schedule, you can grow with them. If they are not, you will hit a ceiling that no amount of working capital can break through. A construction-focused CPA is one of the highest-leverage moves a contractor can make.
Most sureties review your file annually when your statements come in. Some will only review on request. If you have grown and your statements support more, ask. Most contractors who never asked have left capacity on the table for years.
The most common reasons: a project that is too large or outside your normal work type, a balance sheet item that shifted since the last review, a profit fade on an active job, or a project owner the surety has had problems with. A decline is rarely about you personally. It is usually about one specific input that changed.
Sureties want a documented plan for what happens to your active backlog if the owner cannot run the business. Identified successor, key person life insurance sized to the program, and a buy-sell agreement for multi-owner companies are the standard expectations. Contractors with a real perpetuation plan in place often see direct capacity increases without changing financials.
If you are stuck at a capacity ceiling, the fix is not the next surety. The fix is the underlying program. We have spent 30 years walking contractors through the financial moves that change capacity, and we tell our clients what to fix instead of just placing the bond.
Take the Bond Scorecard to see where your program stands today, then schedule a real program review. We will tell you what is moving you and what is holding you back.
Bond Scorecard: gritinsurance.com/bonds-surety/contractor-bond-readiness-review/contractor-bond-scorecard
Call the Grit team: (801) 505-5500