A $2.4M fiber splicing subcontractor had skilled crews and major telecom carrier clients — but the financials were unpredictable. Some months looked great. Some were a disaster. No pattern, no explanation. CFOS cleaned up the books, identified that T&M rates were built on busy-month assumptions instead of honest annual utilization, and gave the owner month-by-month visibility for the first time. January alone showed $141K in project costs against $144K in revenue — almost nothing left before overhead hit.
Fiber splicing subcontracting has a structural cash problem that's easy to miss: T&M work comes in bursts. Overhead doesn't stop between jobs. If your T&M rate is based on what you bill during your busiest months — not what your actual cost structure looks like across a full year — you're underpriced on every slow month and you don't know it until the bank account shows you. This contractor's wife was handling the books after hours, not out of carelessness but because subcontractor accounting is genuinely complex. Costs weren't landing in the right places and the real financial picture was invisible. CFOS made it visible.
BY JOSH LUEBKERPublished: May 2025Updated: May 2026
$141K
Jan project costs vs $144K revenue — margin gap named and fixed
FULL
Monthly visibility into which months are structurally profitable
T&M
Rates rebuilt on honest annual utilization, not busy-month assumptions
ACTIVE
Structured cabling buildout underway to stabilize recurring revenue
The Problem
GOOD MONTHS. BAD MONTHS. NO IDEA WHY.
IN THE OWNER'S WORDS
"Some months I'd look at the bank account and feel great. Then the next month would be completely different and I couldn't explain it. The work seemed consistent. The clients were the same. I just couldn't figure out what was changing."
The owner ran experienced fiber splicing crews for major telecom carriers. The client relationships were strong. The technical work was solid. But the financial picture was unpredictable in a way that didn't match the apparent consistency of the work — and nobody could explain it to him.
The books were being managed by his wife after hours. That wasn't the problem — it was a symptom. Subcontractor accounting has specific complexity that general bookkeeping training doesn't cover: cost codes, job cost allocation, T&M billing structure, overhead absorption across variable-volume months. Costs were posting to the wrong places. The financials looked clean on the surface but weren't reflecting what was actually happening at the job level.
The deeper problem was the T&M rate structure. The rates had been set based on what the business looked like during busy periods — high utilization, strong revenue months. But T&M fiber splicing work isn't consistent month-to-month. January might be slow. March might be buried. If your rate is built on a busy-month assumption, you're underpriced in every slow month. And in January, that meant $141K in project costs against $144K in revenue — almost nothing left before a dollar of overhead was paid.
The Diagnosis
THREE PROBLEMS. ONE INVISIBLE FINANCIAL PICTURE.
PROBLEM 1 — COSTS IN THE WRONG PLACES
The Books Looked Clean but Weren't Accurate
When CFOS reviewed the books, costs were posting to the wrong accounts — job costs that should have been overhead, overhead that was getting allocated to specific jobs incorrectly, T&M labor that wasn't matching against the billing records. The P&L showed a number but it wasn't a reliable number. Before anything else could be fixed, the books needed to be cleaned up so the financial picture was actually accurate.
PROBLEM 2 — T&M RATES BUILT ON WRONG ASSUMPTIONS
Priced for Busy Season, Not Annual Reality
T&M rates need to cover labor, burden, equipment, overhead, and margin — across the full year, not just the busy months. If you build your rate assuming 85% utilization and you actually average 65% utilization across the year, your rate is structurally too low in every slow month. January showed exactly what that looks like: $141K in project costs, $144K in revenue, $3K left before a single dollar of overhead. The rate needed to be rebuilt from honest annual utilization data, not peak-period assumptions.
PROBLEM 3 — NO MONTH-BY-MONTH VISIBILITY
No Way to See Which Months Were Structurally Profitable
Without clean books and accurate cost allocation, the owner couldn't distinguish between a bad month caused by slow work volume and a bad month caused by a structural pricing problem. They look the same on the surface — low bank balance, stress. The fix required both: clean books so the numbers were accurate, and a monthly reporting structure so the owner could see exactly what each month looked like and why.
The Intervention
WHAT CFOS ACTUALLY DID.
WEEKS 1–4
Cleaned up 12 months of bookkeeping. Reclassified costs to correct accounts — job costs to jobs, overhead to overhead, T&M labor matched against billing records. Built a chart of accounts structure appropriate for fiber splicing work: splicing labor, equipment, materials, travel, and overhead pools separated correctly.
WEEKS 5–6
Pulled actual utilization data for the trailing 12 months. Calculated true average monthly utilization — not peak-month utilization. Rebuilt the T&M rate from actual cost structure: fully-burdened labor rate, equipment allocation, overhead absorption at realistic utilization, and target margin. New rate reflected what the business actually cost to run year-round.
WEEKS 7–8
Set up monthly job profitability reporting in ControlQore. Owner could now see, for every month: revenue by job, cost by category, gross margin, overhead absorbed, and net result. For the first time, slow months had an explanation — low utilization compressing overhead absorption — and the owner could plan around it.
ONGOING
Identified structured cabling work — contracted, predictable billing — as a strategic addition to stabilize revenue alongside T&M splicing. Owner began actively pursuing structured cabling contracts to reduce the month-to-month volatility that T&M-only revenue creates. Each new contract month provides a revenue floor that T&M work builds on top of.
The Outcome
THE VOLATILITY GOT A NAME.
Books cleaned and costs allocated correctly — for the first time, the P&L reflected what was actually happening at the job and month level.
T&M rates rebuilt on honest annual utilization data — pricing now covers actual cost structure year-round, not just during peak months.
Month-by-month visibility established — owner knows which months are structurally profitable and which ones consume margin, and why.
January's $141K cost vs $144K revenue gap identified and explained — the margin wasn't disappearing, it was being eaten by a rate that didn't account for slow-month overhead absorption.
Structured cabling buildout actively underway — contracted recurring revenue being added to stabilize the base that T&M work fluctuates on top of.
Owner now makes decisions based on what the business is actually doing — not what it feels like it's doing.
Time to Outcome
VISIBILITY IN 60 DAYS.
The unpredictability didn't disappear overnight — but it got a name within 60 days of engagement. Once the books were clean and the T&M rate was rebuilt, every month had an explanation. Slow months weren't mysteries anymore. The owner could plan for them, price around them, and build toward a revenue mix that reduced their impact.
THE PATTERN IN T&M FIBER WORK
T&M fiber splicing is fundamentally a utilization business. When utilization is high, the margins look great. When it's low — January, weather delays, carrier project pauses — overhead doesn't stop but billing does. If your T&M rate was built assuming high utilization and you're averaging something lower, you are structurally underpriced in every slow month. The fix requires knowing your actual annual utilization rate, not your best months, and building the rate from that number. Most fiber contractors have never done this calculation. CFOS does it in the first 60 days.
What This Means
DOES YOUR BANK ACCOUNT MAKE SENSE TO YOU?
If the financials are unpredictable in a way that doesn't match how the work feels, the problem is almost always cost allocation or rate structure. These are the specific signs.
Your bank account has good months and bad months with no clear pattern — the work seems consistent but the numbers don't match.
T&M rates were set based on what busy months look like — not what the business costs to run across a full year at realistic utilization.
Someone without construction accounting experience is handling the books — not because they're not trying, but because subcontractor cost allocation is genuinely specialized.
You can see the total monthly revenue and total monthly cost but can't explain why some months are profitable and some aren't.
Your revenue is heavily T&M and you've never modeled what the business looks like at 60% utilization vs 85% utilization.
Common Questions
FREQUENTLY ASKED.
A $2.4M fiber splicing subcontractor had skilled crews and major telecom carrier clients but completely unpredictable financials — some months strong, some a disaster, no pattern. The books were being managed by his wife after hours and costs weren't landing in the right places. More critically, T&M rates had been set based on busy-month utilization assumptions. In slow months like January, that meant $141K in project costs against only $144K in revenue — almost nothing left before overhead hit.
Three problems producing one invisible financial picture. First: costs posting to the wrong accounts — job costs, overhead, and T&M labor all misallocated, making the P&L inaccurate. Second: T&M rates built on peak-month utilization assumptions rather than honest annual averages — structurally underpriced in every slow month. Third: no month-by-month visibility — the owner couldn't distinguish between a slow-volume month and a structural pricing problem because both looked the same on the surface.
Within 60 days: books cleaned, T&M rates rebuilt on honest annual utilization, and monthly job profitability reporting established. The owner could see for the first time which months were structurally profitable and which consumed margin — and why. January's $141K cost vs $144K revenue gap was identified and explained. A structured cabling buildout is actively underway to stabilize revenue alongside T&M work. The owner is making decisions based on what the business is actually doing, not what it feels like.
Yes — the T&M utilization problem is extremely common in fiber splicing, low-voltage, and telecom subcontracting. Any contractor running T&M rates set during a busy period without modeling the full annual utilization curve is likely structurally underpriced in slow months. The Job Profitability System and Trade Benchmarking System are the CFOS modules that address cost allocation and rate structure for this type of work.
Former commercial construction project manager and master electrician. Managed 150+ projects totaling $300M+ including Google data centers, military bases, hospitals, and high-rises. Now fractional CFO for commercial subcontractors doing $1M–$12M through Sulphur Prairie Management.
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DOES YOUR BANK ACCOUNT MAKE SENSE TO YOU?
If the numbers are unpredictable and you can't explain why, that's a bookkeeping and rate structure problem — not a business problem. Find out in 30 minutes.
