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Balance sheet vs income statement

The balance sheet shows what a company owns and owes at one moment; the income statement shows what it earned and spent over a period — one is a snapshot, the other a film.

Each, defined

Balance sheet

Balance sheet — Assets, liabilities and equity at a point in time, proving the accounting equation.

Balance sheet in the glossary

Income statement

P&L — Performance over a period.

P&L in the glossary

Side by side

Balance sheet and Income statement compared
Balance sheetIncome statement
TimeOne date ('as at')A period ('for the period ended')
ShowsAssets, liabilities, equityRevenue, expenses, net income
AccountsCarry forwardReset each year

Northwind's first month, both statements

Northwind Traders, Inc.'s September 2026: the income statement shows $31,500 of revenue and $2,550 of net income for the month; the balance sheet at 2026-09-30 shows $72,000 of assets, funded by $9,450 of liabilities and $62,550 of equity. (Northwind Traders, Inc., September 2026, accrual basis, USD.)

Northwind's first month, both statements
Income statement, for the monthAmountBalance sheet, at month-endAmount
Revenue31,500.00Total assets72,000.00
Cost of revenue(17,000.00)Total liabilities9,450.00
Operating expenses(11,950.00)Total equity62,550.00
Net income2,550.00

How they relate

The two are joined by retained earnings: each period's net income from the income statement is added to equity on the balance sheet. That link is why they must be prepared together.

Read alone, each misleads. A profitable income statement can sit beside a balance sheet running out of cash, which is what the cash flow statement is for.

Questions

What links the two statements?
Retained earnings, through net income.
What is the third statement?
The cash flow statement — it explains why profit and the change in cash differ.

Also confused with these

Definitions are the glossary’s, generated from the same documents. Figures in the examples are computed by tested functions, not typed. General information for US companies under US GAAP, not accounting or tax advice.

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