What it means
Profit is calculated on the accrual basis: revenue when earned, expenses when incurred. Operating cash flow asks what actually happened to the bank account as a result of trading.
The two differ for three reasons. Non-cash expenses such as depreciation and amortization reduce profit but involve no cash.
Working capital movements absorb or release cash: when receivables grow, customers owe more and cash has not arrived; when inventory grows, cash has been spent on stock not yet sold; when payables grow, the business has used suppliers' money. And some cash items, such as tax payments, may fall in a different period from the charge.
Most companies present operating cash flow by the indirect method: start with profit, add back non-cash charges, and adjust for the changes in working capital. The direct method lists gross cash receipts and payments and gives the same total.
Either way, the reconciliation from profit to operating cash flow is one of the most informative pieces of a set of accounts, because it shows exactly where profit went if it did not become cash. Healthy businesses convert profit to cash consistently; operating cash flow near or above net profit plus depreciation is the norm.
Persistent shortfalls signal trouble: revenue recognised but not collected, stock building up, or profit that exists only on paper. Fast-growing companies often show weak operating cash flow because growth absorbs working capital, which is acceptable if temporary and funded.
Shrinking companies can show strong operating cash flow as working capital unwinds, which is not a sign of health. Operating cash flow is the starting point for free cash flow (after capital expenditure), for debt service coverage, and for most cash-based valuation measures.
It is also where cash flow manipulation, when it happens, usually occurs: delaying supplier payments, factoring receivables or timing collections around the period end can flatter a single period, which is why the trend over several periods matters more than any one figure.
In practice
Real-world examples.
Example
A subscription software company reports operating cash flow 40% above net profit because customers pay annually in advance and the resulting deferred revenue is a source of cash.
Example
A construction company reports a profit of $3 million and operating cash flow of minus $1 million because it has recognised revenue on contracts whose clients pay on completion.
Example
A retailer in decline reports strong operating cash flow as it sells down inventory without replacing it, a one-off release that will not recur.
Think of it
“Operating cash flow is the actual cash your business generates from selling products and services-the real money, not accounting profit.
Formula
Calculation
Indirect method: Operating Cash Flow = Net Profit + Depreciation and Amortization + Other non-cash items minus Increase in Receivables minus Increase in Inventory + Increase in Payables minus Cash Taxes paid in excess of the charge (and similar timing adjustments)
Direct method: Operating Cash Flow = Cash from Customers minus Cash to Suppliers minus Cash to Employees minus Other Operating Cash Payments minus Taxes Paid
Cash Conversion = Operating Cash Flow / Net Profit
Worked example. A kitchen manufacturer reports for the year:
- Net profit: $1,200,000
- Depreciation: $450,000
- Loss on sale of equipment (non-cash): $30,000
- Accounts receivable rose from $1,800,000 to $2,300,000 (increase $500,000)
- Inventory rose from $1,100,000 to $1,350,000 (increase $250,000)
- Accounts payable rose from $900,000 to $1,050,000 (increase $150,000)
- Tax charge $400,000; tax paid $340,000 (the difference of $60,000 is a timing benefit)
Operating cash flow = $1,200,000 + $450,000 + $30,000 minus $500,000 minus $250,000 + $150,000 + $60,000 = $1,140,000
Cash conversion = $1,140,000 / $1,200,000 = 95%
The business made $1,200,000 of profit and $1,140,000 of operating cash. Working capital absorbed $600,000 net, most of it in receivables; without that growth, operating cash flow would have been $1,740,000. If receivables keep growing at this pace while sales are flat, the company is not collecting its money and the next year's figures will show it.
Direct method view of the same year: cash from customers $14,500,000; cash to suppliers $9,200,000; cash to employees $3,300,000; other operating payments $520,000; tax paid $340,000. Total = $1,140,000, the same figure.Case study
Seen in the real world.
A listed engineering group reported five years of rising profits and a cash conversion rate that fell each year, from 105% to 48%. Management attributed the gap to growth in long-term contracts. An analyst who compared the group with its peers found that its receivables had grown to 140 days of sales against an industry norm of 75, and that "contract assets", revenue recognised but not yet billable, had tripled.
The group was booking profit on contracts far ahead of any cash, and several of those contracts were in dispute. When two disputes were settled at a loss, the group wrote off $180 million of contract assets, restated three years of profit, and its shares fell by two thirds. The analyst's rule, published afterwards, was that any company whose cash conversion falls below 70% for two consecutive years while reporting rising profit should be assumed to have a revenue recognition problem until proven otherwise.
Watch out
Common mistakes.
- Judging a business on profit without checking whether it turns into cash. The reconciliation from profit to operating cash flow shows where the money went.
- Treating a single period's operating cash flow as the trend. Working capital timing can swing it substantially; look at three or more periods.
- Confusing operating cash flow with free cash flow. Operating cash flow is before capital expenditure; a business must still invest to continue.
Questions
People also ask.
What is the difference between operating cash flow and net income?
Net income is accrual profit after non-cash charges. Operating cash flow is the cash generated by operations, before investment and financing.
What is a good cash conversion rate?
Consistently above 80% to 90% of net profit for a mature business; higher when depreciation is large. Persistent rates below 70% warrant investigation.
Where does interest paid appear?
Under US GAAP in operating activities; under IFRS companies may choose operating or financing, and must apply the choice consistently.
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