Two companies each report $100 million in profit. One collected it in cash; the other booked it as receivables that may or may not turn up, and inventory it hasn't sold. Same headline earnings, very different reality — and the income statement alone won't tell you which is which. The gap between what a company reports and what it collects is called the accrual, and reading it is the most reliable earnings-quality check there is. This is the companion to our guide on the Beneish M-Score — accruals are the single heaviest ingredient in that model, and here they get the full treatment.
Earnings are an opinion; cash flow is closer to fact
Accrual accounting lets a company record revenue before the cash arrives and defer costs it has already paid. That's not a trick — it's how accounting is supposed to match effort to reward. But it leaves room for judgment, and judgment is where quality varies. The clean way to see past it is to compare net income against operating cash flow (the cash the business actually generated). When the two track closely, the earnings are real. When profit consistently outruns cash, something is being carried on the balance sheet instead of collected.
The one ratio to know
The core measure, straight from the academic literature, is the accrual ratio:
(Net Income − Operating Cash Flow) ÷ Total Assets
Read it like this: a negative ratio means the company generated more cash than it reported as profit — conservative, high-quality earnings. A small positive ratio is normal. A large positive ratio means a big slice of the reported profit is accounting entries, not cash — and that's the reading that tends to reverse. A second, more intuitive cut is cash conversion (operating cash flow ÷ net income): around 1.0 or above is healthy; well below 1.0 says profit isn't becoming cash.
Why this actually predicts something
In 1996, an accounting researcher named Richard Sloan published a finding that's held up for nearly three decades: companies with high accruals go on to underperform companies with low accruals, year after year. It became known as the accrual anomaly. The mechanism is simple once you see it — cash earnings persist, accrual earnings fade, and the market is slow to tell the difference. So a high-accrual profit isn't just lower quality in the abstract; it's statistically more likely to disappoint next year. That's what makes this more than an accounting nicety.
The six places quality quietly leaks
The headline accrual number is the summary; the story is in where the gap comes from. Six levers do most of the work:
- Accruals ratio — the master gauge above: profit not backed by cash.
- Cash conversion — how much reported profit turns into operating cash.
- Receivables stretch (DSO) — are customers taking longer to pay, or is revenue being booked ahead of collection?
- Inventory build (DIO) — is unsold inventory piling up faster than sales, a classic prelude to write-downs?
- Payables stretch (DPO) — is the company flattering cash flow simply by paying its own suppliers more slowly?
- Stock-based comp intensity — a real cost that dilutes you but never leaves as cash, so it quietly inflates operating cash flow.
Any one of these can be benign in isolation. Two or three moving the wrong way at once, while reported profit climbs, is the pattern worth stopping for.
How to read it in a filing
You don't need the whole apparatus to start. Open the cash-flow statement, find operating cash flow, and set it next to net income for the same year and the two before. If profit is rising while operating cash flow stalls or falls, go to the working-capital lines — receivables and inventory — and to the stock-based-compensation add-back. You're not looking for fraud; you're asking a fair question: is this profit the kind that comes back next year, or the kind that was borrowed from it?
How AnalystBook scores it
We compute an Earnings Quality Score from 0 to 100 for every company we cover, built from those six Sloan-rooted metrics and read straight from the machine-readable filings — the same inputs, every time, no estimates. Higher means profit backed by cash, stable working capital, and modest dilution; lower means accounting-heavy earnings, a working-capital stretch, or heavy stock-based dilution. Crucially, negative accruals (cash exceeding profit) score as good, not penalized — conservatism is quality. Every sub-score shows the raw figures it came from, with prior-year and three-year context, so the score is a starting point you can immediately check against the filing, never a black box. For research purposes only; not investment advice.