Earnings Quality and Accounting Red Flags

Net income is an accountant's opinion, built on estimates and judgment calls — when to recognize a sale, how fast to depreciate a machine, whether a receivable will ever get paid. Two companies can report the exact same $50m net income with very different truth behind it: one collected $48m of it in cash, the other collected $10m and booked the rest as promises. Earnings quality is the discipline of checking which one you are looking at before you trust the number.

The single most useful check is comparing net income to operating cash flow. The gap between them is the accrual:

$$\text{Accruals} = \text{Net income} - \text{Operating cash flow}$$

Large, persistently positive accruals — earnings consistently outrunning cash — are the classic warning sign, formalized as the Sloan accruals anomaly: high-accrual companies, on average, subsequently underperform, because some of that "earnings" quietly reverses.

A worked example

A company reports net income of $80m in each of the last two years. Year 1: operating cash flow is $74m, a small $6m accrual — unremarkable. Year 2: operating cash flow falls to $45m while net income stays $80m, a $35m accrual, roughly 44% of reported earnings. Digging into the notes: receivables jumped $28m even though revenue grew only 5%, meaning the company is booking sales to customers who have not yet paid. That gap, not the headline $80m, is the number worth investigating.

Beyond the accrual check, a short list of recurring red flags: receivables growing faster than revenue (channel-stuffing or lenient credit terms), inventory building up faster than sales (goods that will not move, or that will need a markdown), frequent "one-time" or "non-recurring" charges that recur every year, capitalizing costs that a conservative peer would expense immediately, and auditor changes or late filings, which correlate with disputes over what the numbers should say.

None of these checks require anything beyond the three financial statements read side by side — earnings quality is less a specialized skill than the habit of never taking net income at face value.