Protect what you build.
You run the jobsite. We defend the business.
Generic bookkeepers treat your trade business like a corner shop, taxing you on a mobilization draw you haven’t earned while your WIP schedule tells your surety underwriter you’re insolvent. Nimble & Cross closes your books daily, syncing your field software and supplier invoices to track every job’s over and under billings, release your statutory holdback the day it’s due, and burden every hour correctly. A lien notice shows up, or the CRA questions a subcontractor’s classification. Either way, our construction attorneys hold power of attorney and answer for you, so your bonding line keeps growing and you stay on the jobsite.
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Stage 00 // The math
[ THE BONDING & CAPITAL EQUATION ]
⇔ Click any term to run your own numbers
Unencumbered Cash. The liquid capital sitting in your operating accounts today, free of subcontractor trust obligations and payroll tax reserves. Protect it by keeping your books synced daily between your field software (Procore, Buildertrend) and your bank. Whether a GC delays payment or a supplier offers an early-pay discount, you know your real cash position in minutes instead of waiting on a bookkeeper’s monthly guess.
Statutory Holdbacks & Earned Retainage. Capital you’ve already earned under a completed milestone but that sits held back, usually 10%, under provincial construction lien law or your prime contract’s retainage terms. A generic bookkeeper either books a holdback as income the day it’s earned, handing you a tax bill on money you haven’t collected, or loses track of it until the job closes. We track every holdback against its statutory lien deadline, push for release the day the law allows it, and keep that earned equity visible to your surety underwriter.
Monthly Operating Burn (Adjusted for Fully Burdened Job COGS & WIP). What it actually costs to run your crews and your office each month, after unbilled job costs are reconciled against what you’ve already billed. This term shrinks as the two above grow: burdening field labor with the real cost of WCB class rates, union fringes, and payroll tax down to the specific cost code, while adjusting your monthly progress billings under percentage-of-completion rules so you’re never paying tax on a draw you haven’t earned yet.
Stage 01 // The blind spot
// “Our bookkeeper booked our $400,000 mobilization draw as immediate revenue the week it cleared, but expensed our switchgear and generator order the following month when the supplier invoiced us. Our P&L showed a massive spike in profit, our CPA calculated a six-figure tax bill on money already committed to materials, and our surety broker froze our bonding line because our working capital looked insolvent.”
— Managing Partner & Master Electrician, Commercial Electrical Contracting
Generic bookkeepers get your construction numbers wrong, and it costs you your bonding capacity.
Generic bookkeepers and local CPAs approach trade contractors with an outdated small-business template. They treat your business like a simple cash-in, cash-out shop, categorizing lump-sum bank deposits weeks late, ignoring your field software, and expensing supplier invoices the day they arrive, whether or not the job itself has billed a dime yet.
In a business where you’re financing crews and suppliers for months before a general contractor pays what you’ve earned, that blindness creates three severe misclassifications: progress billings vs. realized revenue, direct wages vs. fully burdened labor, and equipment write-offs vs. bonding capital.
Misclassification 01: Progress Billings vs. Realized Revenue
// So what
Book a mobilization draw as immediate income and you pay premature tax on cash you haven’t earned. Book a major supplier invoice as a current expense while it’s still waiting on owner approval and your job looks like it’s losing money, which shrinks your line of credit right when you need it.
// The reality
Commercial contracting is governed by percentage-of-completion rules (ASC 606 / ASPE 3400). Revenue is recognized as costs are incurred relative to the total estimated cost of the contract:
Overbillings (billings in excess of costs)
Upfront mobilization draws and early milestones are a balance sheet liability, unearned revenue you still owe the project.
Underbillings (costs in excess of billings)
Work completed and material installed on site before the next pay application is an unbilled asset, not a loss.
// The blunder of generic accounting
Generic bookkeepers take the path of least resistance: the deposit hits the bank, so they call it income.
That single call creates artificial earnings volatility that distorts your profit margins and your balance-sheet equity, right in front of the two audiences (your bank and your surety) who are reading it most closely.
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Your books are quietly bleeding your bonding capacity, taxing you on revenue you haven’t earned, and hiding labor costs until a job is already underwater.
Stage 02 // The reality
// “We thought we cleared 18% on a six-month school project until the final holdback check arrived. Our bookkeeper never tracked our change orders against actual supplier invoices, our foremen were signing delivery tickets nobody matched to purchase orders, and our true margin had quietly dropped to 4%. We took all the risk for free.”
— VP of Operations, Mechanical & HVAC Systems Group
Books that run thirty days behind hide job bleeding, uncollected holdback, and a compromised bonding line.
A contractor whose books run weeks behind the jobsite usually complains about something administrative first: “I spend every Sunday matching delivery tickets to purchase orders nobody signed off on.”
That headache masks something worse. The hours you spend on a crew, on a bid, on a change order walk are what make the business money, and every hour lost to reconciling spreadsheets is an hour you don’t get back. Books that run a month behind don’t just cost you time. They hide job bleeding, uncollected holdback, and a bonding line that’s smaller than it should be.
The damage shows up in three compounding operational traps:
Ten percent of every progress billing sits held back until substantial completion, and generic books lose track of it.
// Month 1Progress billings and collected cash still move together. The 10% holdback on each draw hasn’t come due yet.
// Illustrative sample telemetry for Ironclad Mechanical & Electrical Ltd.
Cumulative job cash position ($K)
⇔ Drag to scrub, month by month
Bad job cost accounting quietly drains your working capital, keeps you doing the reconciling yourself at night, and leaves your bonding line exposed exactly when a tender needs it.
Stage 03 // The system
// “Whenever an owner dispute or a lien issue came up, our lawyer blamed our accounting records and our bookkeeper blamed our contracts. We were paying $600 an hour just to pass emails back and forth. Having legal counsel and accounting under one roof ended the runaround.”
— Managing Director, Commercial Drywall & Acoustic Systems
You need one engine for jobsite execution and another to defend your balance sheet. We build both from the source.
A contractor who finally realizes generic accounting is bleeding their bonding capacity and burning them out usually reaches for an expensive construction consultant or another job-costing dashboard first.
That instinct usually fails because it treats the symptom, not the structure. Layering advice on top of books that are already wrong just produces prettier reports about the wrong numbers.
Fixing this for a trade contractor means replacing month-end reconstruction with one system that runs every day, connecting what actually happens on your jobsites (field software, time tracking, supplier invoices) with the accounting, legal, and lien reality those numbers create.
An effective system rests on five operational pillars:
// Illustrative sample telemetry for Ironclad Mechanical & Electrical Ltd.
CCA claimed on tax return
+$75,600
Working capital preserved for surety
+$75,600
Equipment financing · $180,000
Job cost postings · $760,000
Working capital base · $460,000
One set of books
Every dollar, one treatment
Generic result
Full CCA taken on the tax return with no separate view of working capital.
Bonding capacity: unmodeled, at risk
Excavator & fleet · $180,000
WIP-adjusted job costs · $620,000
Burdened labor & overhead · $140,000
Unencumbered cash & holdbacks · $460,000
Tax return
Accelerated CCA
Surety book
Working capital preserved
Tax-linked
$180,000 CCA claimed
Cash preserved, tax deferred
Surety-linked
Bonding multiple protected
Working capital modeled first
Your surety broker or bank asks for current numbers, and you send a link in minutes instead of losing three weeks rebuilding spreadsheets. Clean job costing, verified daily, ready whenever a tender or a renewal comes up.
Stage 04 // The architecture
// “When a general contractor who owed us $280,000 went into receivership, our bookkeeper didn’t know our 60-day lien deadline had already started. By the time an outside lawyer asked for the delivery tickets to file the claim, we were four days late and lost our lien rights on the entire balance. Having legal counsel wired into daily billing means a deadline like that gets caught the day it opens, not after it’s already closed.”
— President & Owner, Structural Steel & Framing
An integrated construction-law and trade accounting firm, wired directly into your project books.
Right now you’re juggling three vendors who never talk to each other: a bookkeeper who’s weeks behind on job costs, a CPA who files an autopsy of your year eleven months late, and a lawyer billing $600 an hour to clean up disputes your accounting should have prevented. You’re the one stuck routing PDFs between all three.
Nimble & Cross replaces that whole vendor chain. Our software runs the daily job costing, and our in-house CPAs and construction attorneys hold Power of Attorney to execute, file, and defend whatever the software legally can’t.
Here’s how it works, layer by layer:
// Illustrative sample telemetry for Ironclad Mechanical & Electrical Ltd.
Stop being the router between your bookkeeper, your lawyer, and your surety broker. One firm runs the job costing, protects the structure, and signs for it.
Stage 05 // The bonding file
// “Every year, bonding renewal became a month-long scramble. Our surety broker asked for a reconciled WIP schedule our own bookkeeper didn’t know how to produce. With Nimble & Cross, the underwriting package was already reconciled down to the penny, and our surety raised our single-job limit from $2.5M to $5.5M in two business days.”
— Founder & General Manager, Commercial Plumbing & Piping Systems
We give you a bonding file ready for surety underwriters, and tax filings that keep more of what you earn.
A surety broker or a bank asks for current numbers, and you send a link right away. Tax season arrives, and your WIP schedule, your burdened labor costs, and your holdback aging are already reconciled and filed. No fire drills and no missed tender deadlines.
Onboarding takes days, not months: no spreadsheet templates, no endless kickoff calls, just read-only access to the field software and bank accounts you already use. From there, we run a retrospective review of your open tax years to recover legitimate deductions a prior bookkeeper missed.
Here’s what stays permanently ready in your bonding file:
// Illustrative sample telemetry for Ironclad Mechanical & Electrical Ltd.
// Audit telemetry, commercial banking & bonding readiness
[ Artifact index ]
[ Live artifact inspector ]
Monthly WIP Schedule (ASC 606 / ASPE 3400)
Walk into your next bonding renewal with the numbers already built.
Get set up in 48 hours[ Terms of art ]
- WIP
- Work in progress. The accounting schedule that tracks costs incurred and billings issued on every open job, the source of your overbilling and underbilling position.
- Holdback
- The portion of a progress billing, usually 10%, that a general contractor or owner withholds under provincial construction lien law until a project reaches substantial completion.
- POA
- Power of attorney. The legal authority that lets our construction attorneys file, negotiate, and sign on your behalf with the CRA, a lien registry, or a surety underwriter.
- WCB
- Workers Compensation Board. The provincial body that sets insurance premium rates by trade risk class, one of the statutory costs burdened into your true hourly labor rate.
- CCA
- Capital Cost Allowance. The tax depreciation a contractor claims on equipment and vehicles, weighed against the working capital a surety underwriter needs to see on the balance sheet.
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