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FIBER CLUSTER · CASH FLOW

Cash Flow for Fiber Contractors

QUICK ANSWER

Fiber contractors lose cash to three overlapping gaps: carrier billing cycles running 45–60 days creating a permanent receivables pipeline, T&M rates that do not cover overhead when carrier deployment pauses, and no 13-week forecast to show the cash shortage coming. On $250K of monthly T&M work with 45-day pay cycles, $375K of earned revenue is always in the pipeline. When a carrier project pauses, costs keep running against zero new billing. That is not bad luck. It is a structural cash gap with a specific fix.

The cash flow volatility that fiber contractors experience — flush months followed by months where payroll is a question mark — is not random. It follows carrier deployment cycles that happen on a predictable schedule. The problem is that most fiber contractors do not have a 13-week cash forecast that maps expected payment receipts against committed costs. They find out about the shortage when they log in Thursday night before Friday payroll. CFOS builds that forecast and runs the AR follow-up rhythm that compresses the 45-day pay cycle as much as the carrier will allow.

BY JOSH LUEBKERPublished: June 2026Updated: June 2026
THE CASH FLOW PROBLEM

Why Fiber Cash Hits and Misses

CARRIER BILLING CYCLE GAP

Net 45 Means $375K In the Pipeline on $3M Annual Revenue

Major carriers pay net 45 at best. Net 60 happens. On $250K of monthly T&M work, a 45-day pay cycle means $375K of earned revenue is permanently in the pipeline — completed work, billed, waiting for a carrier payment run. When a carrier project pauses mid-cycle, the receivables from the last active months sit in the pipeline while crew costs keep running. Weekly AR follow-up compresses the cycle. A 13-week cash forecast shows the gap coming 6–8 weeks out instead of 6–8 hours before payroll.

UTILIZATION RATE CASH BLEED

The Rate That Works at 80% Loses Cash at 55%

When carrier deployments slow, crew utilization drops but payroll does not. If the T&M rate was built on 80% utilization, every hour billed at 55% utilization loses money on overhead. On $250K of monthly T&M work dropping to $140K during a carrier pause, that is $15K–$25K of monthly overhead shortfall hitting operating cash directly. The fix is a rate built on honest annual utilization — so slow months are already covered in the pricing.

NO REVENUE BASE

Pure T&M Has No Cash Floor

A fiber contractor running 100% carrier T&M has no contracted revenue floor. When the carrier pauses, revenue goes to zero. Structured cabling, enterprise network installations, and government broadband projects provide a contracted billing base. They do not pay as well per hour as hot carrier T&M work. They do not disappear when a carrier deployment pauses. Revenue mix is a cash flow tool — not just a growth strategy.

PRICING

FLAT MONTHLY FEE. NO SURPRISES.

Two tiers based on trailing 12-month revenue. No hourly billing. No payroll. No add-ons.

CORE FINANCIAL
From $1,900/mo
  • ControlQore setup and job costing structure
  • Books migrated to start of last taxable year
  • Full-service bookkeeping and bank reconciliations
  • Monthly job cost reports
EXECUTIVE FINANCIAL
From $2,900/mo
  • Everything in Core Financial
  • Monthly CFO advisory meeting
  • Controllership and WIP reporting
  • Cash forecasting and AR follow-up rhythm
  • Strategic accountability

Full pricing by revenue band →

COMMON QUESTIONS

FREQUENTLY ASKED.

Three structural gaps: carrier billing cycles running 45–60 days creating a permanent receivables pipeline, T&M rates that do not cover overhead when carrier utilization drops below the assumption built into the rate, and no contracted revenue base when deployments pause. Fix all three and the volatility becomes predictable — and manageable.
Three fixes: recalculate T&M rate on annual utilization so slow months are covered in the pricing; build a 13-week cash forecast around carrier pay cycles so shortfalls are visible 6–8 weeks out; add structured cabling or enterprise network work to create a contracted revenue base that bridges carrier gaps. CFOS delivers all three.
CFOS installs T&M rate recalculation on annual utilization, a 13-week cash forecast built around carrier billing cycles, weekly AR follow-up on carrier receivables, and revenue mix analysis identifying stabilizing contract work. Core Financial from $1,900/month.
Josh Luebker — The Construction CFO
Josh Luebker
Fractional CFO · The Construction CFO

Former commercial construction project manager and master electrician. Managed 150+ projects totaling $300M+. Now fractional CFO for commercial subcontractors doing $1M–$12M through Sulphur Prairie Management. About Josh →

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