Operating cash flow: the number that often says more than profit

Profit is probably the most closely watched number in financial statements, but it does not always best describe a business's ability to sustain itself financially. A company can be profitable while consuming cash; it can also report modest profit but generate very strong cash flows. The reason is simple: profit and operating cash flow measure different things. Profit comes from accrual accounting and relates revenue to expenses allocated to the year. Operating cash flow instead seeks to show how much cash is generated or absorbed by core activities. The cash flow statement, governed by Article 2425-ter of the Italian Civil Code and OIC 10 for financial statements requiring it, separates operating flows from investing and financing flows.

Revenue is not necessarily a cash receipt

Suppose a company sells 500,000 euros of goods in December with payment due in 120 days. The revenue may contribute to the year's profit, but at 31 December those 500,000 euros have not yet reached its bank account: they are trade receivables. If the company must simultaneously pay suppliers and employees, it may report positive profit while needing more bank credit. This is why the income statement alone cannot explain financial dynamics.

Depreciation: an expense without a cash outflow during the year

The opposite also occurs. Depreciation reduces profit but does not represent a payment made during the year. If plant bought previously gives rise to annual depreciation of 100,000 euros, the income statement records that expense, but another 100,000 euros does not leave the bank account that year. Starting from profit, the cash flow statement therefore adjusts non-cash income and expense items and then considers working capital changes.

Building the bridge between profit and cash

To understand why profit and cash flow diverge, I would build a simple bridge. I would start with earnings, add non-cash expenses such as depreciation and consider changes in receivables, inventory and operating payables. If receivables increase, some revenue has not yet been collected; if inventory grows, cash has been absorbed by stock; if trade payables increase, some outflows are deferred. Imagine profit of 250,000 euros, depreciation of 80,000, receivables increasing by 170,000, inventory by 90,000 and trade payables by 60,000. In simplified form, operating cash flow would be around 130,000 euros. The business is profitable, but less than half its adjusted earnings converted into cash during the year.

Working capital can devour cash

Imagine a company with profit of 300,000 euros. During the year, trade receivables rise by 250,000 euros and inventory by 180,000, while trade payables rise by 100,000. In very simplified terms, the net increase in working capital absorbs 330,000 euros. Despite profit of 300,000 euros, current operations may therefore have generated no cash. This does not automatically mean the company is poorly managed: it may be expanding rapidly. But it makes it necessary to understand whether future collections will finance that growth or whether it will continuously require new debt.

High profit and negative cash flow: a warning to investigate

A temporary divergence between profit and operating cash flow can be normal. A persistent divergence is more interesting. If a business reports substantial profits for four consecutive years while operating cash remains weak or negative, we must ask where the earnings went. Possible explanations include difficult-to-collect receivables, inventory accumulation, revenue recorded with very long payment terms or other dynamics preventing profit from converting into cash. A good analysis would not start by concluding that “the profit is fake”; it would start by reconciling earnings and cash flows.

Working capital can be managed

Reducing collection days, planning inventory and negotiating consistent supplier terms can release cash without increasing revenue. But changes must be sustainable: reducing inventory too far can delay deliveries, while unilaterally extending payments can harm commercial relationships. Effective financial management coordinates the operating cycle rather than simply shifting the problem to another party. I would therefore supplement the cash flow statement with indicators such as average receivable days, inventory days and payable days. Their development often explains changes in operating cash flow better than comparing two closing balances alone.

Positive operating cash flow does not automatically mean a perfect business

The cash measure also requires interpretation. A company can temporarily improve cash flow by delaying supplier payments. If trade payables rise sharply, operating cash may appear stronger, but the company is financing itself through suppliers. Alternatively, it may cut inventory aggressively: this releases cash in the short term, but the benefit is unsustainable if it undermines customer service. The cash flow statement describes cash movements; economic judgement is still needed to understand their quality.

Looking at several years avoids hasty conclusions

A single negative year may reflect growth or seasonality. If the company builds inventory ahead of a launch and collects payments in subsequent months, cash flow may recover. A sequence of weak operating cash flow while revenue and receivables rise is more concerning: it may indicate worse commercial terms, collection difficulties or lower-quality revenue. I would therefore compare profit, operating cash flow and investment over at least three to five years, supplementing annual data with a monthly forecast. Cash flow does not replace the income statement: a company can generate cash by postponing payments or reducing inventory unsustainably. The two statements answer different questions and become genuinely informative when read together.

Watch for cash generated by non-repeatable events

Large collections of overdue receivables or an exceptional inventory reduction can improve annual cash flow without representing structural capacity. I would therefore separate recurring components from one-off effects. Supporting debt and investment requires repeatable cash generation, not merely a favourable year. Likewise, paying suppliers later temporarily increases cash but may conceal financial strain. Cash flow quality depends on its origin and whether it can be maintained without harming customers, suppliers or productive capacity. In historical comparisons I would use at least three years: one year may be distorted by seasonality, exceptional recoveries or payment deferrals. A longer sequence helps establish whether profit and cash converge over time or whether the gap has become structural and requires action.

Operating cash flow and free cash flow

Generating cash from operations does not mean all that cash is available for shareholders or debt repayment. A company often needs investment to maintain or expand productive capacity. Suppose operating cash flow is 1 million euros, but the company must spend 800,000 euros annually on plant and equipment. Cash remaining after investment is much lower. Management analysis often refers to free cash flow, although its definition can vary with the analysis. The point is that a business with substantial operating cash but even greater necessary investment may have less financial capacity than it appears.

Why cash flow helps assess debt

Loans are repaid with money, not accounting profit. The relationship between debt and cash-generating capacity is therefore central to assessing financial sustainability. A company may have substantial equity and good profit, but if it generates insufficient cash, it must sell assets, obtain new financing or receive shareholder funds to pay principal and interest. Over the long term, that position becomes fragile.

A comparative example

Consider two businesses with the same net profit.

Looking only at profit, they appear equivalent. Looking at cash flows, the first generates far more financial resources, while the second sees much of its earnings absorbed by working capital and investment.

The number I would examine alongside profit

I would not replace profit with operating cash flow, because they answer different questions. Profit helps assess economic profitability; operating cash flow shows how much of that profitability becomes money generated by operations. The gap between them is often particularly informative. If profit and cash grow consistently together, earnings quality appears stronger. If they diverge sharply, investigation is needed. When I read “record profit”, the next question that interests me is therefore: how much cash did operating activities generate? Not because cash is always more important than profit, but because without this second piece of information, half the story is missing.

Note. This article is for information and education only and does not constitute accounting, financial or business advice.