The Analyst’s Course · Forensic Accounting
What Earnings Actually Are
The pipeline from sale to cash
When a company sells something, accounting records revenue the moment the performance obligation is satisfied — not when money arrives. The sale becomes a receivable; the receivable becomes cash weeks or months later. Expenses follow the same logic: costs are "matched" to the revenue they helped generate, whenever the cash actually leaves. This system is called accrual accounting, and it exists because timing cash flows would make most businesses look wildly different month to month without saying anything about their health.
Why net income and cash flow diverge
Net income is revenue minus matched costs. Operating cash flow (CFO) is cash in minus cash out from operations. The wedge between them is accruals: growing receivables (sold but uncollected), inventory builds (spent but unsold), payable timing, depreciation (a non-cash charge), and deferred revenue (collected but unearned). A company with strong income and weak cash is booking sales it has not collected. A company with modest income and strong cash may be collecting faster than it recognizes revenue — like a subscription business billing annually upfront.
The worked example: Apple FY2025
Apple reported net income of about $112.0B for fiscal 2025 while operating cash flow came in near $122.3B. CFO exceeds NI by roughly $10B — driven mainly by enormous non-cash charges (share-based compensation, depreciation) and working-capital timing. That is the signature of a business whose reported earnings are conservatively stated relative to cash. The ClearView panel condenses this into two numbers: cash conversion (CFO ÷ NI = 1.09×) and the accruals ratio ((NI − CFO) ÷ assets), which is negative here — both healthy readings.
(Net Income − Operating Cash Flow) ÷ Total Assets
Accruals ratio — Persistently positive and rising accruals are the single strongest accounting red flag in the academic literature.
Sunbeam, 1998 — selling the future
Under Al "Chainsaw" Dunlap, Sunbeam booked $35M of sales in Q4 1997 through "bill and hold" arrangements — customers bought goods Sunbeam kept in its own warehouses. Revenue and receivables surged; cash did not. The SEC later charged the company with accounting fraud. Every signal lived in the gap between the income statement and the cash flow statement: receivables grew several times faster than sales in the quarter. Cash conversion would have flagged it a year before the 1998 restatement destroyed the stock.
What you'll practise
A company reports rising net income but operating cash flow keeps falling. The most likely explanation?
3 graded checkpoints · certification exam at the end of the track
Sources
Altman (1968); Beneish (1999); Sloan (1996); company 10-K filings via SEC EDGAR
Learn content is for education only — not individualized financial advice, a recommendation, or a solicitation to buy or sell any security. Options involve substantial risk. Examples are simplified and historical patterns never guarantee future results.