The Number That Lied: Profit vs Cash Flow

Why a profitable business can run out of cash — and why the headline figure is the one most likely to deceive.

On 15 January 2018, one of Britain’s largest construction companies declared itself insolvent. Carillion built hospitals, schools, and roads; it employed around 43,000 people and held contracts with the government itself. On the morning it collapsed, it had liabilities approaching seven billion pounds. In the bank, it had twenty-nine million. For a company of its size, that is the financial equivalent of a body with no blood left in it.

What makes the story worth telling is not that Carillion failed. Companies fail. It is that, on paper, it had looked healthy almost to the end. Barely six months earlier it had paid its shareholders a record dividend. Its accounts showed profit. Its annual reports projected confidence. The number everyone watched - the profit figure - said one thing. The cash in the bank said another. And the gap between those two numbers is where the company quietly died.

This is the single most useful thing a business owner can understand about their own accounts, and it is the thing least often taught: profit vs cash flow is not a technicality — the difference between them can be fatal.

Can a profitable business really run out of cash?

Yes - and it happens far more often than most owners realise. The reason is that profit and cash measure two different things, on two different clocks.

Profit is an accounting opinion: revenue minus costs, recorded when a sale is earned, whether or not the money has arrived.

Cash is a fact: the money actually in the bank, available to pay wages and suppliers today. A business can be profitable on paper and still fail, because you cannot pay a wage bill with profit. You pay it with cash.

Most businesses, once they grow beyond the smallest scale, account on an accrual basis. That means revenue is booked the moment an invoice is raised, not the moment a customer pays. Costs work the same way. So a company can record a healthy profit in a period during which its bank balance actually fell - and the profit-and-loss statement, the number everyone looks at, will not show the danger at all.

The first lie: revenue without margin

The most seductive number in any business is revenue. It is the one the owners quote at dinner parties, the one that signals growth, the one that feels like success. And it is the easiest of all to mistake for health.

Carillion chased revenue relentlessly. It bid for contracts at margins so thin they barely existed, on the logic that turnover itself was a sign of strength. Worse, it counted as revenue money that clients had not yet agreed to pay - optimistic estimates on long, complex contracts, booked as income before they were certain. The top line grew. The substance underneath it did not. Revenue without margin is just activity that happens to involve money; it is motion mistaken for progress.

For an ordinary business the lesson is gentler but identical. A bumper sales month is not the same as a profitable one, and neither is the same as a solvent one.

Turnover is vanity; the question is always what is left after the costs, and whether it arrives as cash.

The second lie: growth without cash

Growth is supposed to be the goal. But growth is expensive, and it consumes cash long before it produces any. A growing business buys stock, hires staff, takes on bigger projects, and funds all of it up front - while the rewards arrive months later, if the customer pays on time. The faster a business grows, the more cash it swallows. It is entirely possible to grow your way into insolvency.

Carillion’s version of this was structural and, ultimately, dishonest. It imposed 120-day payment terms on its own suppliers, then offered to pay them earlier through a bank arrangement - in effect borrowing from its supply chain to fund itself. The borrowing was real debt. But it was recorded in the accounts as ordinary money owed to suppliers, not as debt to banks. Credit-rating analysts later estimated that around £500 million of borrowing was hidden this way. The growth looked self-funding. It was not.

The honest version of this lesson, for a business with no intention of deceiving anyone, is simply this: growth must be funded, and the funding has to be planned for before the growth arrives, not discovered halfway through it. A profitable, fast-growing company that has not arranged for the cash its growth demands is one slow-paying customer away from a crisis.

The third lie: profit without cash flow

This is the one that killed Carillion outright. For years it paid out more to shareholders than it actually generated in cash. According to the subsequent parliamentary inquiry, in the five and a half years to mid-2017 the company paid roughly £333 million more in dividends than it produced in cash from its operations. The profit figure justified the dividends. The cash to pay them was borrowed.

The detail that lingers: the company’s final dividend, some £55 million, was paid in June 2017 - one month before the profit warning that began the collapse, and after the finance director had reportedly urged the board to withhold it and conserve cash. The board looked at a profit number and chose to believe it. A month later the same company warned of an £845 million hit; its shares lost seventy per cent of their value within days. By January it was gone, taking some 30,000 small suppliers’ unpaid invoices down with it.

Profit without liquidity is a promise you cannot keep. It is perfectly possible to be profitable and unable to pay your bills at the same time - and when that happens, it is the bills, not the profit, that determine whether you survive.

What this means for your own accounts

Carillion was an extreme case, sharpened by aggressive accounting and, in places, outright concealment. Most business owners will never do anything of the kind. But the underlying confusion that destroyed it - trusting the headline number and never checking the cash beneath it - is astonishingly common, and entirely innocent, in ordinary businesses.

The practical defences are not complicated. Read your cash position with at least as much attention as your profit. Keep a simple, forward-looking view of the cash you expect in and out over the coming weeks, so a shortfall is something you see coming rather than something you discover. Understand the gap between when you earn money and when you actually receive it, because that gap is where solvent-looking businesses get into trouble. And treat a healthy profit figure not as an all-clear, but as one number among several that together tell you whether the business is truly sound.

The headline figure is the one most likely to deceive precisely because it is the one you most want to believe. A number on a page is an opinion until there is cash in the bank to prove it.

What this means for you

If you only ever look at one number in your business, profit is the wrong one to choose alone. The companies that fail unexpectedly are rarely the ones that were obviously struggling. They are the ones that looked fine - right up to the moment the cash ran out. Reading accounts properly means reading past the figure that flatters you to the one that tells you the truth.

This is the unglamorous, essential work we do alongside the businesses we advise at LCK: not admiring the headline, but understanding what sits beneath it - so that the number on the page and the money in the bank tell the same story. If your own accounts look healthy but you have never quite checked whether the cash agrees, that is exactly the question worth asking before it asks itself.