Why Revenue Can Grow While Cash Stays Tight

Revenue is up. Why is cash still tight?

Sales grew. The backlog is healthy. Gross margin looks right. Yet the credit line is drawn, payroll week gets watched closely, and the CFO keeps asking the business for patience.

Sometimes that is exactly what growth costs. More customers mean more receivables. More volume means more inventory. Some growth must consume cash before it returns cash.

Sometimes it is something else. A finished job waits for paperwork before it can be invoiced. An invoice goes out wrong and comes back. Inventory sits in the wrong place or the wrong configuration. A disputed charge waits for the one person who can settle it.

Both conditions appear in the same balance-sheet lines.

They are not the same condition, and they call for opposite decisions.

A company can sell more without converting more of what it sells into cash.

I distinguish three kinds of time that hold a company's cash: contract time, volume time and waiting time.

These are three different explanations for cash being tied up, not three balances to add together. Growth can increase the cash tied up even when no transaction takes longer.

The first two can be legitimate costs of doing business and growing it. Only the third—waiting that is avoidable and created by how the work is arranged—can be Structural Drag, and only after the first two have been accounted for. Some waiting is necessary: credit checks, quality holds and contractual controls protect the business.

1. Three kinds of time that hold cash

In my Business Structural Drag framework, Structural Drag is work a company repeats because of how it is arranged—work a different arrangement could remove without changing what the customer receives or what the business must protect.

In working capital, Structural Drag may not look like work at all. It can appear as time: days a transaction spends waiting while people correct, chase, reconcile or approve it.

Working capital is money multiplied by time. The financial statements show the balances. They do not show why each dollar is waiting.

Time has a price. For a company with $100 million in annual revenue, one day of revenue is roughly $274,000. Ten days of waiting time in receivables holds about $2.7 million that could otherwise fund the business.

The illustration uses revenue to approximate receivables; inventory and payables need their own cost and purchasing measures. It is arithmetic, not a finding. The investigation is whether those ten days exist—and why.

2. Two paths to cash

Cash moves through two paths, and a transaction can wait at every step of either one.

The last point matters more than it appears. Receivable days and payable days can rise together, leaving the overall cycle unchanged. The summary measure improves or holds while the business has simply moved the waiting from one party to another.

3. Four public-company situations that reveal different cash questions

I examined public disclosures from CDW, TD SYNNEX, Grainger and MRC Global.

They are deliberately different: offsetting ratios inside a stable cycle, growth with stronger operating cash flow, growth that absorbed working capital, and an operating disruption that reached cash directly.

I have not assessed these companies internally or assigned them Structural Drag profiles. The reported facts belong to the companies; the structural questions are my professional interpretations.

4. What I conclude across the four situations

The four examples do not establish one universal problem.

CDW shows that a stable cycle can contain large offsetting changes.

TD SYNNEX shows that growth and stronger operating cash flow can occur together.

Grainger shows that growth can absorb working capital, alongside other changes in earnings.

MRC Global shows operating disruption reaching cash directly, in management's own words.

The common analytical question is more useful than a common diagnosis:

Between the moment a customer commits and the moment cash arrives, where does the transaction wait—and did anyone decide that it should?

Days are averages. Cash waits one transaction at a time.

Days sales outstanding, inventory days and payable days describe balances. They cannot distinguish contract time from volume time from waiting time. That distinction requires the dates of individual transactions and the reasons each one waited.

5. Where Structural Drag could enter the path to cash

My Business Structural Drag framework offers six competing explanations, none of which I assign to the named companies.

No Structural Drag established is equally legitimate. Terms, mix, demand, seasonality, customer credit or deliberate inventory investment may explain the result.

Two companies with the same receivable days can require opposite decisions.

Longer terms negotiated to win profitable business can be a sound commercial decision. Invoices waiting for paperwork are not a commercial decision at all.

The distinguishing evidence determines the decision.

For the full profile illustrations and diagnostic distinctions, see Research 01 — Why Growing Companies Become More Expensive to Run.

6. What cash held by waiting time is—and is not—worth

My three economic ledgers remain separate: verified financial effects, paid capacity consumed and contribution not earned.

Cash conversion makes the separation especially important, because three different numbers can be confused with one another.

Cash released is largely a one-time effect. If waiting time is removed, the cash it held returns to the business once. It is not recurring profit, and it should not be added to EBITDA.

The recurring effects are different. They include the cost of financing the cash that is held, the paid capacity consumed by correcting, chasing and reconciling transactions, and any contribution not earned because a cash constraint delayed work the company could otherwise have taken on.

Waiting time grows with the business. If revenue grows and waiting days stay the same, the cash held grows with it. At ten days of waiting time, every additional $10 million of annual revenue holds roughly another $274,000.

The same distinction appears in a sale. A buyer may require a level of working capital to remain in the business at closing. Waiting time that has become normal operating practice can become part of what the seller delivers—and part of the price.

The connection to the Renergy™ Conversion Chain is direct:

Paid capacity → Usable capacity → Delivered output → Operating profit → Cash → Enterprise value

Research 01 examined whether growth became operating profit. This paper examines the next step: whether the work a company completes, and the profit it reports, becomes cash it can use.

7. Give this to your CFO, COO and head of sales

The Cash-Conversion Friction Test

Before funding the next stage of growth—or accepting tighter cash as its price—I would require one joint review addressing seven questions.

1. Which transactions are we examining? Select twenty to fifty transactions across customers, locations and transaction types—including completed and incomplete orders, billed and unbilled work, collected and uncollected invoices, and aged exceptions. Do not examine only transactions that successfully reached cash.

2. What happened, and when? Reconstruct the dates of commitment, readiness to start, completion or shipment, acceptance, invoice, any correction or dispute, and collection—or where each transaction stands today.

3. What did we agree to? Compare each transaction's actual timing with its agreed terms. Separate contract time from everything else.

4. Why did each transaction wait? Name the cause: missing information, approval, correction, dispute, documentation, location or a specific person.

5. What did the supply side hold? For the same transactions, determine when inventory or materials were bought, when they were used, and why they waited.

6. Do the transaction patterns explain the balances? Compare the observed delays with company-wide receivable, inventory and payable data. Test whether the sample reflects the larger population before estimating the cash affected.

7. What is the waiting worth? Separate one-time cash held, recurring financing cost and paid effort consumed. Do not add them together.

Four decisions are legitimate: change terms or pricing; fund the growth; redesign the arrangement that creates waiting time; or deliberately change nothing.

The purpose of the test is not to collect faster by pressing customers. It is to find out why cash waits.

8. What would change my conclusion?

I would weaken a Structural Drag hypothesis if transaction timing closely matches agreed terms, if balances move in line with volume while days stay stable, or if delays disappear once a temporary disruption is resolved.

I would also weaken it if changes in terms, customer mix, demand, seasonality or deliberate inventory investment explain the result.

I would strengthen the case for structural investigation where completed work repeatedly waits to be invoiced, where invoices are repeatedly corrected, where disputes cluster around the same causes, or where the same customer is collected on different timelines at different sites.

The decisive evidence is not the receivable-days figure.

It is the dates of individual transactions—and whether each wait would remain necessary under a different operating arrangement.

9. Before you fund the next stage of growth

A company can grow, earn more and still need to borrow more.

Sometimes that is the correct price of growth.

Sometimes it is waiting time that grows every time revenue does.

My question is not whether the company is growing.

My question is this: if revenue grew 20% next year, how much cash would that growth require—and how much of it would be time no customer asked for?

For the profit side of the same question, see Research 01 — Why Growing Companies Become More Expensive to Run. For what happens when new systems change the work without changing its economics, see Research 02 — Why New Technology Doesn't Always Make a Company Easier to Run.

A growing company should be judged not only by what it sells and what it earns, but by how quickly the work it completes becomes cash it can use.

Gower Idrees

Creator of the Business Structural Drag framework and the Renergy™ management framework

Sources, Evidence Notes & Research Methodology

Evidence reviewed through November 2, 2026