CASH FLOW · STEP 07 · CHAPTER 7

The New Zero

Every owner treats an empty account as the bottom, and a reserve as something you build later once things settle down. In construction that is backwards.

DIRECT ANSWER

Your New Zero is 3 to 6 months of fully burdened monthly operating expenses, held as working capital and cash on hand. That is the floor, not the cushion. Everything under it is a deficit you have not measured yet, and a balance above nothing tells you nothing until you know where the line is.

WHY ZERO MOVED

You fund the work, then you wait

Labor goes out weekly. Material goes out on terms. Mobilization goes out before there is anything to bill. Then the pay application goes in, the general contractor submits it upstream, somebody approves it, and retainage stays behind for months after the last man leaves the site. For that whole stretch the company is the lender, and the account has to carry it.

That is why the floor is not zero. The account is not a scoreboard, it is a buffer against a cycle you do not control, and a buffer that runs to nothing has already failed.

FLOOR
3 months
Diversified customers, short cycle, light retainage.
CEILING
6 months
Concentrated, seasonal, or heavy on retainage and mobilization.
BASIS
Burdened
The word that decides whether your number is right or half of it.
THE WORD THAT MATTERS

Fully burdened, not the payroll line

WHAT GOES IN IT

Fully burdened means the cost of keeping the doors open and the crews employed for a month with nothing coming in. Wages at the real loaded rate, workers comp at your current EMR, payroll taxes, insurance, rent, vehicles, fuel, phones, software, small tools and debt service. Not the payroll line off the profit and loss.

This is where most owners get it wrong twice in the same direction. The reserve they think they are holding is smaller than they think, because the months they counted were understated. And the floor they have to clear is higher than they think, for the same reason. A company that believes it is holding four months is often holding two and a half.

WHICH END

What decides 3 against 6

Not temperament. How your cash actually behaves. Count the ones that are true of you.

READ THE TABLE HONESTLY

Seven of the ten push toward the ceiling and three pull back, and that is not an accident of drafting. Most commercial subcontractors in this revenue range carry several of the top seven at once, so the honest reading is that the middle of this market sits closer to six months than to three. Three is the floor for a firm whose cash behaves unusually well, not the normal answer.

Pushes you towardWhat it isWhy
6 monthsOne general contractor is most of your revenueA single slow payer becomes a company-wide event, not a bad week.
6 monthsRetainage is held long and released lateThe last slice of every job is money you have already spent and cannot spend again.
6 monthsThe work is seasonalA quiet quarter still carries a full month of overhead, every month of it.
6 monthsYou mobilize big before the first pay applicationYou fund the setup, the crew and the material, then wait a full billing cycle to ask for any of it back.
3 monthsCustomers are diversified and none of them is criticalOne slow payer is a nuisance instead of an emergency.
3 monthsYou bill monthly and collect close to termsA short cycle means the money you laid out comes back before the next round goes out.
6 monthsA lot of the work is time and materialT and M collects far slower than fixed price, because every ticket waits on a signature and then gets read line by line. Six to eight months to collect is normal, against monthly pay applications on fixed price work.
6 monthsThe work is bondedA surety looks at working capital before it writes the bond, so the reserve has a second job and a second reader. Falling below it costs you the capacity, not just the comfort.
6 monthsYou self perform most of the workPayroll goes out every Friday whether anybody paid you or not. There is nothing to stretch and nobody to stretch it with.
3 monthsYou sub out a large share of the workSubcontract terms can pass some of the timing downstream, so a slow collection does not hit your own account with the full weight of the job behind it.
DO IT

Three moves, in order

MOVE 01
Work out one burdened month
Everything it costs to keep the doors open and the crews employed for a month with nothing coming in. Use the real loaded labor rate, not the payroll line.
MOVE 02
Pick your multiple
Count the factors above. Mostly the top four and you are at 6. Mostly the bottom two and 3 will hold.
MOVE 03
Put the line on the forecast
Draw it across the bottom of every week, in the same sheet that projects the balance. Then the weekly number tells you how much room you have left.

The 13 week cash flow forecast is where the line goes. It costs nothing, and it is the tool this whole idea exists to make useful.

QUESTIONS

What owners ask

What is the New Zero?

The balance a construction company has to treat as empty. It is 3 to 6 months of fully burdened monthly operating expenses, held as working capital and cash on hand. Not a cushion you build once things settle down. It is the floor. A bank balance above nothing tells you nothing until you know where your New Zero sits, because the money between the two was already spoken for.

How is that different from keeping three months of expenses?

Keep three months of operating expenses. That advice is not wrong so much as unfinished. It was written for a business that invoices and gets paid, and it never says burdened, which is the word that decides whether the number is right or half of what it should be. A contractor funds labor, material and mobilization before anybody pays, and retainage sits out for months after the work is finished, so the reserve is doing more work here than it does in a business that invoices and gets paid.

What does fully burdened mean?

Fully burdened means the cost of keeping the doors open and the crews employed for a month with nothing coming in. Wages at the real loaded rate, workers comp at your current EMR, payroll taxes, insurance, rent, vehicles, fuel, phones, software, small tools and debt service. Not the payroll line off the profit and loss.

Am I at 3 months or 6?

It is decided by how your cash behaves, not by how careful you feel. 7 things push you toward 6: one general contractor is most of your revenue, retainage is held long and released late, the work is seasonal, you mobilize big before the first pay application, a lot of the work is time and material, the work is bonded, you self perform most of the work. 3 pull you back toward 3: customers are diversified and none of them is critical, you bill monthly and collect close to terms, you sub out a large share of the work. Count how many of the first list are true of you, and be honest that most commercial subcontractors carry several of them at once.

Does time and material work collect faster than fixed price?

The opposite, and it catches people out. A fixed price job bills on a monthly pay application against a schedule of values. A time and material ticket waits for a signature, then gets read line by line, then sits until somebody upstream agrees to it. Six to eight months to collect is normal on T and M. If a large share of your work is T and M, your New Zero belongs at the 6 month end.

What do I do once I know the number?

Treat it as zero. Read the bank balance against it rather than against nothing, and put it at the bottom of the 13 week forecast so every week shows how far above or below it you are. Then no hiring, buying or debt payoff decision gets made against a figure that means nothing.

Where does this sit in the system?

Step 07, monthly cadence, which is chapter 7 of CONTROL. Weekly bookkeeping, cost to complete, and one CEO report, on the same days every month.

AUTHOR
Josh Luebker
JOSH LUEBKER
MASTER ELECTRICIAN · 150+ PROJECTS · $2.1B+ MANAGED

Wrote CONTROL, the 8 step system these figures sit inside. More about the author.

8 Steps 60 Days

CONTROL is the full system, written for commercial subcontractors from under $1M to $100M. It publishes on October 1, 2026. 8 steps, 6 working templates, and the order they install in. $9.99 ebook, $24.99 paperback.