In plain English
Accounting has rules, but the rules leave choices: when to call something revenue, how fast to depreciate, what counts as an investment rather than a cost. Earnings quality is about asking whether the profit reported is the profit the business actually earned.
The advanced view
Reported earnings equal cash flow plus accruals. Accruals are the discretionary component and they mean-revert, so a firm with persistently high accruals relative to assets earns lower future returns — the accrual anomaly. Forensic analysis is a systematic search for the gap between economic reality and its accounting representation, and it starts by reconciling net income to operating cash flow.
The single most useful check takes thirty seconds: compare cumulative net income to cumulative operating cash flow over three to five years. In a healthy business the two track each other, with growth absorbing some cash into working capital. When net income runs persistently ahead of operating cash flow, profit is being recognised before cash arrives, and receivables or inventory should show where it is sitting.
Quality screens
Cash conversion = Operating cash flow / Net income (want ≈ 1 or better over a cycle) Accrual ratio = (Net income − Operating CF − Investing CF) / Average net operating assets Days sales outstanding = Receivables / Revenue × 365 Days inventory = Inventory / COGS × 365; Days payable = Payables / COGS × 365 Cash conversion cycle = DSO + DIO − DPO Free cash flow = Operating CF − Capex (the number that cannot be accrued away)
Red flags by mechanism
Bill-and-hold
Revenue booked on goods invoiced but not shipped. Look for a jump in receivables with flat inventory turnover at period end.
Channel stuffing
Pushing product to distributors near quarter-end. Shows as a Q4 revenue spike, rising DSO and elevated returns next quarter.
Percentage of completion
Long-contract revenue booked on estimated progress. The estimate is management's; watch for repeated upward cost revisions.
Capitalising costs
Moving spend from the income statement to the balance sheet — software development, R&D, customer acquisition. Boosts profit and operating cash flow at once.
Stretching payables
Paying suppliers later inflates operating cash flow in one period only, then must be repeated to be sustained. Check DPO trend and supply-chain finance disclosure.
Goodwill impairment timing
Impairments delayed until a new CEO arrives or a bad quarter is already priced in. Compare acquired segment growth to the deal case.
Lease treatment
Post IFRS 16 leases sit on the balance sheet, lifting EBITDA and net debt at once. Comparisons to pre-2019 figures or to US GAAP peers must be adjusted.
Off-balance-sheet structures
Joint ventures, receivables factoring and special-purpose entities that hold debt or losses. Read the commitments and contingencies note.
Worked example: spotting the gap
Step 1 of 8
- 1Revenue grows 20% to 1,200; net income grows 25% to 150
Must know cold
- ✓Net income is an opinion, cash flow is a fact, free cash flow is the verdict.
- ✓Rising DSO with rising revenue is the classic revenue-recognition warning.
- ✓Capitalising a cost raises profit and operating cash flow simultaneously — always check the investing line.
- ✓IFRS 16 raises EBITDA and net debt together; leverage on an EBITDAR basis is more comparable.
- ✓Goodwill is not amortised under IFRS; it is impairment-tested, so it fails all at once.
- ✓One-off restructuring charges that appear every year are not one-off.
Common pitfalls
- ×Valuing a company on management-adjusted EBITDA without reading what was adjusted out.
- ×Assuming an unusual cash-flow year is noise rather than checking working-capital days.
- ×Comparing an IFRS 16 company to a pre-IFRS 16 history without restating.
- ×Treating a big impairment as bad news when the cash was lost years earlier at the acquisition.
- ×Missing that a supply-chain finance programme is debt dressed as payables.
Essential vocabulary
- Quality of earnings (QoE)
- Diligence report normalising EBITDA for one-offs, accounting choices and owner costs.
- Accrual
- Non-cash component of earnings; the difference between profit and cash flow.
- Factoring
- Selling receivables for cash today; flatters DSO and operating cash flow.
- EBITDAR
- EBITDA before rent, used to compare lease-heavy businesses across accounting regimes.
- Contingent liability
- A possible obligation disclosed in the notes rather than recognised on the balance sheet.
Strategy connection
Accounting aggression usually signals strategic strain. A company stretching revenue recognition is normally defending a growth narrative it can no longer deliver operationally, so the accounting question and the competitive question are the same question in different clothes.
Exercises
Try each one on paper before revealing the worked solution.
Exercise 1
A firm reports net income of 200, D&A of 90, a 150 increase in receivables, a 60 increase in inventory and a 40 increase in payables. Capex is 100. Compute operating cash flow, free cash flow and cash conversion, and say what you would ask about.
Exercise 2
Company A expenses 100 of development spend; company B capitalises it over five years. Both otherwise identical with EBITDA before that spend of 500. Compare EBITDA, net income (25% tax, ignore interest) and free cash flow.
Exercise 3
Structuring exercise: you have two weeks of diligence on an acquisition target with suspiciously smooth earnings. Structure the workplan.