The income statement shows how much profit a business made over a period, such as a year. The balance sheet shows what the business owns and owes on one particular day. The first is a movie of the year; the second is a photograph taken at the end of it.
Almost every student mixes the two up at some point. They come from the same trial balance, they sit next to each other in an annual report, and both are full of numbers. Once you see how they connect, though, the rest of financial statement preparation gets much easier. This guide covers the differences, one worked example that shows both statements side by side, and a short self-test at the end.
The differences at a glance
| Income statement | Balance sheet | |
|---|---|---|
| Question it answers | Did the business make a profit? | What does the business own, and who financed it? |
| Time frame | A period: a month, a quarter, a year | A single date |
| Heading wording | "For the year ended December 31, 2026" | "As at December 31, 2026" |
| What it contains | Revenue, expenses, gains, losses | Assets, liabilities, equity |
| Its equation | Revenue − Expenses = Net income | Assets = Liabilities + Equity |
| Next year | Starts again from zero | Carries its balances forward |
| IFRS name | Statement of profit or loss | Statement of financial position |
| Typical reader question | Is the business profitable, and is profit growing? | Can it pay its debts? How much is financed by borrowing? |
Period vs point in time
This is the difference that matters most, and it is the one students get wrong most often.
An income statement measures activity across a stretch of time. Revenue of $50,000 "for the year" means $50,000 was earned between January 1 and December 31. Ask for revenue on a single day and the question makes no sense: revenue only exists over a period.
A balance sheet freezes the business on one date. Cash of $21,500 "as at December 31" means that was the balance at the close of that day. On January 2 it will be different. That is why every balance sheet heading names a date, and every income statement heading names a period.
A quick way to tell them apart: look at the heading. "For the year ended" or "for the month ended" is a flow statement, either the income statement or the cash flow statement. "As at" or "as of" a date is the balance sheet.
What goes on each statement
Income statement
- Revenue: what the business earned from sales or services in the period
- Cost of goods sold: what the goods it sold cost
- Operating expenses: wages, rent, utilities, depreciation and other running costs
- Other income and finance costs: interest, and gains or losses on selling assets
- Income tax expense
- Net income (net profit): what is left after everything above
Balance sheet
- Assets: what the business controls, such as cash, receivables, inventory and equipment
- Liabilities: what it owes, such as suppliers, wages due, loans and tax payable
- Equity: the owners' share, which is share capital plus retained earnings
If you are not sure where an account belongs, ask whether it will still be there next year. Revenue and expense accounts are closed out at the year end and start again at zero. Assets, liabilities and equity carry their balances into the next year. The step-by-step balance sheet guide covers classification in detail.
How the two statements connect
The statements are not independent. Net income from the income statement is added to retained earnings on the balance sheet, and dividends are taken out of it:
Closing retained earnings = Opening retained earnings + Net income − Dividends
That one line is what links them. The income statement explains why equity changed between two balance sheet dates. A profitable year increases equity; a loss reduces it. It is also why an error on the income statement, such as a missed expense, always shows up on the balance sheet too, through retained earnings.
A worked example: Brightwater Bakery
Brightwater Bakery starts 2026 with this balance sheet:
| As at January 1, 2026 | $ |
|---|---|
| Cash | 8,000 |
| Equipment (net) | 30,000 |
| Total assets | 38,000 |
| Bank loan | 10,000 |
| Share capital | 20,000 |
| Retained earnings | 8,000 |
| Total liabilities and equity | 38,000 |
During the year it sells $50,000 of bread and cakes. Its expenses total $35,000, including $3,000 of depreciation on the ovens. It pays its owners a $5,000 dividend.
Income statement for the year ended December 31, 2026
| $ | |
|---|---|
| Revenue | 50,000 |
| Expenses (including depreciation of 3,000) | (35,000) |
| Net income | 15,000 |
The dividend is not on the income statement. It is a payment to the owners, not a cost of running the bakery.
Balance sheet as at December 31, 2026
| $ | |
|---|---|
| Cash | 21,500 |
| Inventory | 3,500 |
| Equipment (30,000 − 3,000 depreciation) | 27,000 |
| Total assets | 52,000 |
| Accounts payable | 4,000 |
| Bank loan | 10,000 |
| Share capital | 20,000 |
| Retained earnings (8,000 + 15,000 − 5,000) | 18,000 |
| Total liabilities and equity | 52,000 |
Follow the $15,000 profit. It is the bottom line of the income statement, and it reappears inside closing retained earnings of $18,000. The $3,000 depreciation appears twice as well: as an expense on the income statement, and as the reduction in equipment from $30,000 to $27,000 on the balance sheet. Every income statement item has a matching effect somewhere on the balance sheet.
Common mistakes
- Putting dividends or drawings on the income statement. They reduce retained earnings, but they are not expenses.
- Treating a loan repayment as an expense. Repaying the principal reduces a liability on the balance sheet. Only the interest goes on the income statement.
- Listing net income as a separate balance sheet line and inside retained earnings. That counts the profit twice.
- Dating the statements wrongly. An income statement "as at December 31" or a balance sheet "for the year" tells an examiner you have not understood the difference.
- Assuming profit means cash. Brightwater made $15,000 of profit but its cash rose by $13,500. The cash flow statement explains the gap; see income statement vs cash flow statement.
Test yourself
Which statement does each item belong on? Answers are below.
- Service revenue
- Accounts receivable
- Depreciation expense
- Accumulated depreciation
- Interest expense
- Unearned revenue
- Retained earnings
- Dividends paid
Answers: 1, 3 and 5 are on the income statement. 2, 4, 6 and 7 are on the balance sheet; unearned revenue is a liability because the work has not been done yet. 8 is on neither. Dividends go through the statement of changes in equity (or the statement of retained earnings) and reduce retained earnings directly.
Practice both statements
Reading about the two statements helps, but preparing them is what makes the difference stick. Accountely's income statement and balance sheet challenges give you a trial balance and a blank statement, then check every line you enter and explain anything you get wrong. There are IFRS and US GAAP versions, and it's free to start.
Frequently Asked Questions
What is the main difference between an income statement and a balance sheet?
The income statement reports revenue, expenses and profit over a period of time. The balance sheet reports assets, liabilities and equity at a single date. One measures performance; the other measures financial position.
Which comes first, the income statement or the balance sheet?
The income statement is prepared first, because its net income is needed to calculate closing retained earnings, which then goes on the balance sheet. In a published annual report the order of presentation can vary.
Does net income appear on the balance sheet?
Not as its own line. Net income is added to retained earnings, inside equity. Closing retained earnings equal the opening balance plus net income, less dividends.
Is the balance sheet the same as the statement of financial position?
Yes. "Statement of financial position" is the name used under IFRS (IAS 1), and "balance sheet" is the traditional name still used under US GAAP. In the same way, IFRS calls the income statement the "statement of profit or loss".
Which statement is more important?
Neither on its own. A business can report a profit and still be unable to pay its bills, which only the balance sheet and cash flow statement reveal. Lenders tend to look first at the balance sheet, and investors at the income statement, but both read all three statements together.