Three statements, three different questions

A business can be profitable and insolvent at the same time. That is not an accounting failure — it is the point of having more than one statement.

Profit and loss: did the period go well?#

The P&L covers a span of time. Revenue earned, costs incurred, and the difference. It resets to zero at year end, which is why it describes a period rather than a position.

Its defining property is that it follows the accrual basis: revenue when earned, costs when incurred, regardless of when money moved. That is what makes it meaningful and also what makes it silent about your bank balance.

Read it for direction rather than for the bottom line. Gross margin moving against you matters more than a single month's profit, because margin is structural and monthly profit is noise.

Balance sheet: what is the position, right now?#

A snapshot at a single date. Assets, liabilities, and the equity between them — and it balances because every transaction had two sides.

It is the statement most small businesses skip and the one most likely to contain a problem, because it is where errors accumulate. A P&L error usually looks odd immediately. A balance sheet error sits quietly in an account nobody reads.

The fastest diagnostic in accounting is to read the balance sheet and ask, line by line: do I believe this number? A suspense account with a balance. A payroll liability that is not a whole number of periods. Receivables larger than a quarter of revenue. Each of those is a question, and the answer is usually a posting error rather than a business problem.

Cash flow: where did the money actually go?#

The reconciliation between the two. It starts from profit and adjusts for everything that moved profit without moving cash, and everything that moved cash without touching profit.

Growth is the classic gap. A business doubling its sales is funding larger receivables and more inventory out of cash it has not yet collected — profitable on the P&L, draining the bank. The cash flow statement is where that shows up before it becomes a crisis.

The three sections are worth separating because they mean different things. Operating cash flow is the business working. Investing is buying capacity. Financing is where the money came from. A company with negative operating cash flow covered by financing is not the same as one with the same bottom line from buying equipment.

Why they must be derived, not maintained#

Every figure on all three should be computed from the same posted journal entries, each time it is asked for.

The alternative — storing balances and updating them — allows drift. When a stored balance and the transactions behind it disagree, there is no way to tell which is right, and no way to know when it started. Derived reports cannot drift by construction. It is more work per query and it removes an entire category of error.

This is also what makes the audit trail meaningful in both directions: any figure on any statement can be opened down to the entries that produced it, because that is literally how it was produced.

Reading them together#

Three questions, in order, take about ten minutes a month:

1. Is margin holding? P&L, gross profit as a percentage, against prior periods.
2. Do I believe the balance sheet? Line by line, looking for balances that should not exist.
3. Is operating cash flow positive, and if not, why? Growth, timing, or losses — three different problems with three different responses.

Anything more detailed than that is worth doing when a specific question demands it. Anything less and you are running the business on the bank balance, which tells you what cleared rather than what is true.