The cash flow statement is the one that is hard to dress up

An income statement records revenue when it is earned and costs when they are incurred, regardless of when money moves. That is the accrual principle, and it is genuinely useful. It also leaves room for judgement about timing — which is why the cash flow statement exists as a reconciliation.

The three sections

1. Operating: cash generated by the business doing what it does.
2. Investing: money spent on or received from long-lived assets and acquisitions.
3. Financing: borrowing, repayment, dividends and share issuance or buybacks.

Where profit and cash diverge

Receivables rising faster than revenue means sales are being made on increasingly generous terms. Inventory building ahead of demand ties up cash. Payables stretching means the company is financing itself with its suppliers' patience. None of these is automatically bad; all of them are worth a question.

A short diagnostic

Compare operating cash flow to net income over several years. Persistent shortfalls point to earnings quality problems, aggressive revenue recognition or a structurally cash-hungry model. Persistent surpluses usually mean heavy non-cash charges — depreciation on assets bought long ago.