How do the three statements connect?

The single biggest leap in financial literacy is realizing the three statements aren't three separate documents — they're three views of one system, wired together. Change one, and the others move. Once you see the wiring, a company's numbers stop being a list and become a machine.

The two main connections

Connection 1 — Net income flows into retained earnings. The bottom line of the income statement (net income) flows onto the balance sheet, into the equity section, as an addition to retained earnings. The link, roughly:

Ending retained earnings = Beginning retained earnings + Net income − Dividends

So this year's profit, minus whatever was paid out to shareholders, permanently increases the owners' claim on the balance sheet. Profit doesn't vanish at year-end — it's stored in equity.

Connection 2 — Cash flow ties net income to the cash balance. The cash flow statement starts with net income (from the income statement) and ends with the net change in cash — which is exactly the change in the cash line on the balance sheet between this year and last. Cash flow is the bridge that reconciles the profit story to the position snapshot.

Why this is the whole point

These links are why the statements can't be read in isolation and why they're hard to fake all at once. Inflate revenue on the income statement, and either cash or receivables must move on the balance sheet, and the cash flow statement will show the receivable ballooning. The system has to stay internally consistent. That consistency is a truth-telling mechanism.

A rounded illustration

A company starts the year with retained earnings of $60B, earns net income of $10B, and pays $4B in dividends. Ending retained earnings: 60 + 10 − 4 = $66B — and that's the retained-earnings figure you'd find inside equity on the year-end balance sheet, sitting alongside paid-in capital and the other equity lines rather than replacing them. Meanwhile the cash flow statement's operating section began with that same $10B net income. One profit number, touching all three statements.

In the data

Both halves of the first wire sit in one table from Apple's cash flow statement: the profit, what was paid out of it as dividends, and what went into buying back shares.

Do not expect the change in retained earnings to equal net income minus dividends exactly. Share buybacks are a separate cash outflow and can be charged against retained earnings too. Dividends paid is printed as a positive number even though it is cash going out.

Try it now

1. Note net income and dividends paid in the table above. Then compare that net income to the bottom line of the income statement for the same year:

The cash flow statement starts with the number the income statement ends with. Feel the two click together. 2. For the other end of the wire, read retained earnings at the two most recent period ends. It is the last row of each half of this table:

Does the change roughly equal net income minus dividends? 3. It will not close exactly, so measure the residual rather than shrugging at it. Then take the share-buyback row from the cash-flow table above and hold it against your gap: on a company that buys back stock, most of the difference has a name and it is sitting in that row. Check the signs before you subtract. One of these two rows prints an outflow as a positive number, and the section above says which.