Why a Profitable Restoration Job Can Still Drain Your Bank Account

August 7 · Written By Michele Gray

You can perform $412,000 of work on a reconstruction job, book every dollar of the margin you planned, and still watch the checking account tighten in a month where nothing went wrong. No bad debt. No blown estimate. The crews were productive, the customer's happy. And the cash still isn't there.

When that happens, most owners go looking for the leak in the wrong place — the P&L, the bank fees, a slow-paying homeowner. The actual hole is usually on a report they don't produce: the gap between the work they've done and the work they've billed. It has a name — underbilling — and it's the quietest way a restoration company ends up financing its own jobs.

The idea in plain English

Every construction and restoration contract has two clocks running at once: the work you've earned, and the money you've billed. They almost never match.

Earned revenue is the part of the job you've actually completed — the costs you've put in, plus the profit on that portion. Billings are what you've invoiced. Subtract one from the other and you get your billing position on that job:

Underbilling isn't loose shop talk — it's a defined item in the accounting rules that govern contractors. Under ASC 606, the revenue-recognition standard, it lands on the balance sheet as a contract asset; the older, plainer label was "costs and estimated earnings in excess of billings." Translated out of accountant, it means: work you've already done and money you've already spent, that you haven't turned into an invoice yet.

Underbillings "drain cash, forcing the contractor to fund work with its own capital." — Construction Financial Management Association

That's the whole point, and it's not a technicality. You paid the crew, you ran the equipment, you bought the materials — and until you bill for that work, you are the bank. Not the carrier. Not the homeowner. You.

Why restoration underbills faster than anyone

Ordinary contractors underbill by accident. Restoration is practically built to underbill, for three structural reasons.

Scope is discovered, not estimated. You open the wall, the water traveled farther than anyone thought, and now you're doing work that isn't on the approved estimate yet. The labor happens today; the supplement that pays for it gets written, submitted, and approved weeks later — if you chase it. Every day between the work and the supplement is underbilling.

The carrier controls the invoice, not you. On ordinary construction you bill when you hit a milestone. On an insurance job you often can't bill until the adjuster signs off on scope and pricing. So the work runs ahead of what you're allowed to invoice — by design.

Billing is somebody's side job. In a lot of restoration shops the person who could cut the progress bill is also running production during a surge. Invoices slip a week, then two. The work keeps moving; the billing doesn't. That gap is cash walking straight out of your account.

Stack those three and a busy month quietly produces a growing pile of work you've done and haven't billed: profit on the P&L, a hole in the bank.

What it costs you — and who else is watching

Underbilling isn't only a cash-timing annoyance. It's also the number your surety and your bank read to decide how much they'll extend you. Sureties treat underbillings as a caution flag — they can signal inflated profit estimates or trouble on a job — and they measure them against your working capital. A benchmark cited by the CFMA: keep underbillings under 25% of working capital to stay in the favorable zone. Drift past that and your bonding capacity — which, for a growing restoration firm, is your growth capacity — quietly shrinks.

So the same unbilled work hits you twice: it drains today's cash and it caps tomorrow's credit.

Four moves that close the gap

  1. Produce a WIP schedule every month. Not quarterly — quarterly is three months stale on jobs that turn in weeks. A simple work-in-progress schedule lines up earned revenue against billings on every open job, so underbilling shows up as a number instead of a surprise.
  2. Bill in step with completion. The goal on any job is to keep billings at or ahead of the work performed. If you've earned it, invoice it — don't wait for closeout to catch up.
  3. Make supplements a same-week habit, not a someday task. Discovered scope is earned work the moment your crew does it, but it only becomes cash when it leaves the building as a documented supplement. The faster you write it, the smaller your underbilled position.
  4. Track underbillings against working capital. Watch the ratio the way your surety does. If unbilled work is climbing toward a quarter of your working capital, that's the alarm — and it's a better alarm than payroll.

None of this means doing less work or growing slower. It means seeing the gap between what you've done and what you've billed, and closing it on purpose, every month — instead of discovering it the week the account runs dry.

That gap is one of the first things a fractional CFO puts a number on: a monthly WIP that turns "the job looks fine" and "the cash is there" back into the same sentence. If you couldn't say what your underbilled position is right now, that's exactly the kind of thing worth a short conversation.

General guidance for restoration and reconstruction owners — not a substitute for advice tailored to your company's numbers.

Want to see where your restoration profit is really going?

We build the job costing, cash forecast, and monthly reporting that turn “we were busy” into “we made money.” Restoration and reconstruction is all we do.

Sources: FASB ASC Topic 606, Revenue from Contracts with Customers — contract assets ("costs and estimated earnings in excess of billings") vs. contract liabilities ("billings in excess of costs and estimated earnings"); Construction Financial Management Association (CFMA), "Topic 606: Classification & Presentation of Retainage and Contract Assets & Liabilities" (cfma.org); CFMA, "Creating a Dynamic Balance Sheet While Maximizing Bonding Capacity" — underbillings "drain cash, forcing the contractor to fund work with its own capital," and the under-25%-of-working-capital benchmark (cfma.org); EisnerAmper, "Contract Assets & Liabilities Within ASC Topic 606 for the Construction Industry" (eisneramper.com); Shorewest Surety Services, "Work-in-Progress (WIP) Schedules in Construction" — the over/under-billing calculation and how sureties read the WIP (shorewestsurety.com). ASC 606 framework and the CFMA figures presented as construction industry accounting practice; the $412,000 job is an illustrative example. Current as of August 2026.

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