BONDING — CAPACITY GROWTH

MORE BONDING CAPACITY IS A BALANCE SHEET YOU BUILD.

QUICK ANSWER

Bonding capacity isn't a relationship prize — it's computed. Sureties size programs off a handful of numbers: working capital (the standing heuristic is roughly 10% of aggregate program), net worth (similar), the predictive quality of your WIP schedule, your largest completed job (new single-job limits rarely jump far past it), and the continuity of the team and the backlog. Which means growing capacity is a finite engineering problem: build working capital deliberately instead of distributing it, keep equity in the company, run a WIP that proves true quarter after quarter, upgrade statement quality to the CPA level your target program requires, and feed the underwriter the package before they ask. A $25M GC went from unbondable to $10M aggregate on exactly this math. The numbers move, the program follows.

YOUR SURETY ALREADY TOLD YOU THE FORMULA. WORKING CAPITAL, NET WORTH, AND A WIP THEY CAN BELIEVE — EVERYTHING ELSE IS COMMENTARY.

BY JOSH LUEBKER Published: June 2026 Updated: June 2026

THE MATH

WHAT SURETIES COMPUTE YOUR PROGRAM FROM.

INPUT 01 — WORKING CAPITAL: THE 10% HEURISTIC

Current Assets That Are Actually Current

The anchor number: most sureties want working capital around 10% of the aggregate program — $700K supports roughly $7M. But it's underwritten working capital: they discount aged receivables, haircut or exclude related-party loans and prepaid items, and watch retainage quality. Growing it is deliberate: retain earnings instead of distributing them, collect the aged AR (it's discounted at 50%+ until it's cash), and keep current assets liquid instead of converting them to iron. Every retained dollar is roughly ten dollars of program.

INPUT 02 — NET WORTH AND THE DEBT PICTURE

Equity Stays In. Distress Markers Stay Out.

The second heuristic runs parallel: equity around 10% of program, with the debt structure read for character — term debt on equipment is normal, a line that rests is healthy, MCAs and tax liens are program-enders. Owner draws that strip equity during growth years are the most common self-inflicted capacity cap in the field: the same dollars taken as distributions versus retained as equity are the difference between a $3M and a $6M program three years out.

INPUT 03 — THE WIP THAT PROVES TRUE

Predictive Beats Profitable

Underwriters read your WIP for one quality above all: did the projected margins come true? A schedule showing 12% projected that finishes jobs at 11–13% builds capacity every quarter it repeats. A schedule that surprises — fade the WIP never forecast — caps the program no matter how strong the balance sheet, because the surety's whole exposure model runs on your numbers meaning something. The discipline behind predictive WIP is monthly cost-to-complete, built line by line and reviewed after every close.

INPUT 04 — TRACK RECORD, STATEMENTS, AND THE ASK

Largest Job Completed, CPA Level, and the 90-Day Package

Single-job limits anchor to your largest successfully completed project — sureties stretch 1.5–2x past it, rarely more, so capacity grows job by job, not by request. Statement level gates program size: internally prepared works small, compiled to roughly $1M–$2M programs, reviewed statements for most programs beyond that. The ask itself is a package: three quarters of predictive WIP, current statements, backlog with margins, the forecast — delivered through your bond agent 90 days before you need the capacity, never the week of the bid.

THE GROWTH PLAYBOOK

MOVING FROM PROGRAM TO PROGRAM.

Retain deliberately: set a distribution policy that leaves working capital and equity growing toward the next program tier — the 10% math makes the target explicit

Collect the discounted assets: aged AR and stale retainage count against you until they convert — the collections push is also a bonding strategy

Run the CTC cadence: monthly cost-to-complete on every job is what makes the WIP predictive — and predictive WIP is compounding capacity

Upgrade statements ahead of need: moving to reviewed statements before the program requires them removes the gate before you hit it

Step the job sizes: complete a $2M job cleanly to unlock $3M–$4M singles — capacity follows demonstrated completion, so sequence the backlog accordingly

Feed the underwriter quarterly: the unprompted package — financials, WIP, backlog — converts renewal meetings into capacity conversations

BY TRADE

CAPACITY GROWTH, TRADE BY TRADE.

Civil & DOT

The trade where capacity is the pipeline — DOT and municipal work runs bonded by default. The civil-specific lever is the balance sheet mix: iron-heavy current ratios read poorly, so equipment financing structure and genuine working capital liquidity decide the program as much as profitability does.

Concrete & Structural on Public Work

Bridges, plants, schools — concrete capacity grows on WIP predictability, because labor fade is the trade's underwriting fear. Three quarters of projected-versus-actual margins holding within a point is worth more than any single strong year.

Electrical on Institutional Work

Electrical programs grow fastest on statement quality and receivables strength — the trade's collateral profile reads well. The common cap is the largest-job anchor: stepping deliberately from $500K to $1M to $2M singles builds the program faster than waiting for one big swing.

Marine, Heavy & Specialty

Specialty trades face thinner surety appetite and lean harder on the package: the $25M marine GC's jump from unbondable to $10M aggregate ran entirely on financial legibility — real books, real WIP, statements an underwriter could finally read.

WHAT CHANGES WHEN THIS IS FIXED

CAPACITY BUILT, ON THE RECORD.

$10M

Aggregate program, from zero. The marine GC that couldn't get bonded on Excel financials secured $5M single / $10M aggregate within weeks of the statement rebuild — and is working toward a $4.5M credit line on the same package. Sureties weren't avoiding the company. They were avoiding the illegibility.

$7M / $5M

The program the $12M vision is engineered for. The destination numbers SPM calibrates toward — $1.2M working capital, $650K cash floor, zero bad debt structure — exist specifically to support $7M aggregate and $5M single-project bonding under the 10% math. The balance sheet is built to the program, on purpose.

Quarterly

The underwriter package that compounds. Financials, WIP with a one-paragraph variance narrative, backlog with margins — sent unprompted every quarter. Within a year the renewal conversation changes character: the surety starts asking what capacity you'll need next, which is the relationship working as designed.

Frequently Asked Questions

Run the heuristics on your own statements: underwritten working capital times ten, equity times ten — your aggregate program lands near the lower of the two, adjusted for WIP quality and track record. Single-job limits anchor to your largest cleanly completed project, stretched maybe 1.5–2x. A sub with $400K of clean working capital, $450K equity, and a $1.5M largest job is realistically a $3.5M–$4M aggregate / $2M–$2.5M single program. The gap between that math and what you currently have is either statement legibility (fixable in two quarters) or balance sheet (buildable on a plan). Both are engineering, not luck.

Short-window moves: collect aged AR hard (cash counts at 100%, the 90-day receivable doesn't), delay distributions until after the underwriting date, get the current WIP and interim statements to your agent with the backlog story, and ask about job-specific enhancements — funds control or additional indemnity can stretch a single-job approval past the standing program. What doesn't work fast: equity appears overnight only via owner contribution, and statement upgrades take a CPA cycle. Honest answer: if the job is 60+ days out, real moves exist; if the bid is Friday, this page is about the next one.

Directly and dollar-for-dollar — every distributed dollar reduces working capital and equity, and at the 10% heuristic each one costs roughly ten dollars of program. Sureties also read the pattern: draws that spike during growth or loss years signal an owner extracting ahead of obligations, which is a character flag independent of the math. The structure that works: a market salary for the owner (the $12M vision carries $180K plus draws), a written distribution policy tied to working capital targets, and the discipline to let the balance sheet compound toward the next program tier. The distributions get bigger later precisely because they were smaller now.

When the program they unlock is worth more than the fee — which happens earlier than most subs think. Compiled statements typically carry programs to around $1M–$2M aggregate; most sureties want reviewed statements beyond that, and the review runs perhaps $8K–$20K depending on complexity. If reviewed statements are the gate between a $2M and a $5M program, and your bonded work margins run 15–20% gross, the math pays for itself on a fraction of one job. The practical sequencing: upgrade one cycle before you need it, and have the books clean enough that the review is cheap — messy books are what make CPA work expensive.

By building every input deliberately: working capital strategy with distribution discipline mapped to the 10% targets, the monthly CTC cadence that makes the WIP predictive, books closed by the 10th feeding clean statements (and a smooth, cheaper CPA review), the quarterly underwriter package, and the capacity request case files when it's time to step up. SPM sits in the surety meetings as your CFO — underwriters extend more capacity when a construction-fluent financial function answers the questions. The marine GC's $10M program and the $12M vision's $7M target are the same playbook at different scales. Executive Financial, from $2,900/month.