The Three Financial Statements
Income Statement: revenue minus expenses over a period = profit. It answers 'are we making money?'
Balance Sheet: assets = liabilities + equity at a moment in time. It answers 'what do we own and owe?'
Cash Flow Statement: actual cash in and out. Profitable companies still fail when cash runs out.
Assets are resources a business owns, such as cash and equipment. Liabilities are amounts the business owes, such as loans. Equity is the owners’ share of the business after subtracting liabilities from assets. This gives the equation: assets = liabilities + equity. Cash is money available to spend, while revenue is money earned from selling goods or services.
When a business pays $15,000 cash for equipment, its cash asset decreases by $15,000 and its equipment asset increases by $15,000. Total assets stay the same: the business has exchanged one type of asset for another. At the time of purchase, liabilities and equity do not change. Depreciation—the gradual recording of the equipment’s cost as an expense—affects profit later.
Net income is another name for profit: revenue minus expenses over a period. When the business keeps this profit, it increases retained earnings, the accumulated profits kept in the business rather than distributed to owners. Retained earnings are part of equity on the balance sheet, so retained profit increases equity. It does not necessarily increase cash by the same amount, because some sales may not yet have been collected.
You, imagine you run a small side hustle. Even if your income statement shows you're profitable, you need to check your cash flow statement to make sure you have enough actual cash to buy your next batch of supplies.
Learning objective
Connect an income statement, balance sheet and cash flow using one transaction.
Understand the mechanism
The income statement covers a period; the balance sheet is a snapshot. The cash flow statement reconciles cash movement over a period. Read their dates first or you may compare incompatible numbers.
Under accrual accounting, revenue can be recognized before collection. Buying equipment usually creates an asset that is expensed through depreciation rather than an immediate expense for its full price. Debt proceeds add cash but are not sales.
Put it to work
Use the accounting equation to check where a transaction goes. Assets equal liabilities plus equity. Retained profit increases equity, while owner withdrawals reduce it. Specific reporting and tax rules vary; these examples are simplified.
To evaluate a company, connect profit to cash: look for changes in receivables, inventory, payables and capital expenditure. A single statement rarely answers all the important questions.
Worked example
- 1
An owner contributes $1,000: cash assets rise $1,000 and equity rises $1,000, with no sales revenue.
- 2
The business buys $300 supplies in cash, then uses them to earn $500 on credit: simplified profit is $200.
- 3
Cash is $700; receivables are $500. Total assets are $1,200, matching initial equity $1,000 plus profit $200.
- 4
Collecting $500 raises cash to $1,200 and reduces receivables to zero; it does not earn the same revenue again.
One profitable transaction can leave cash lower until the customer pays.
Your practice lab
A business borrows $2,000 and buys $1,500 equipment. Explain cash, liabilities and why the loan is not revenue.
Personal scratchpad · not graded or saved
The Profitable but Cash-Poor Design Studio
Lena launched 'Pixel Perfect', a graphic design studio. After her first six months, she was thrilled. Her Income Statement showed a healthy $15,000 profit, largely thanks to a major project she completed for a new corporate client. She had recorded the $20,000 sale as revenue the moment she delivered the final designs.
However, Lena felt constantly stressed about money. Her business bank account was nearly empty, and she struggled to pay her software subscriptions and her freelance illustrator. A look at her Balance Sheet revealed the problem: a large 'Accounts Receivable' balance of $20,000. Her client's payment terms were 90 days, so while she had *earned* the money, she hadn't *received* the cash.
Her Cash Flow Statement confirmed this, showing a negative cash flow from operations. This experience taught her that profit on paper doesn't pay the bills and that analyzing all three statements together is the only way to truly understand her business's financial health.
A business can be profitable but still face a cash crisis. Analyzing the income statement, balance sheet, and cash flow statement together provides a complete picture of financial health.
Illustrative example — names and figures are composites for teaching.
For your future venture, identify one key metric you would watch on each of the three statements to monitor its health. Explain why each metric is important to you.
Example: 1. Income Statement: Net Profit - to see the ultimate profitability. 2. Balance Sheet: Cash Balance - to make sure I have enough runway to operate. 3. Cash Flow Statement: Net Cash from Operations - to see if the core business model is generating or consuming cash.
Go deeper — outside resources
- Investor.gov (SEC) — learning hub · Investor.gov (SEC)
- U.S. Small Business Administration — learning hub · U.S. Small Business Administration
- Introduction to financial statements · Khan Academy
Key ideas
- Profit ≠ cash
- Assets = liabilities + equity
- Read all three together
Try it: Explain to a friend why a profitable business could still go broke.
Quick check
1. Assets = Liabilities + ___
2. Which statement shows if you can pay bills this month?
3. What is the primary question the Income Statement answers?
4. Which of the following items would you find on a company's Balance Sheet?
5. A small business buys a $15,000 piece of equipment using cash. How does this single transaction immediately impact the Balance Sheet?
6. How does the net income calculated on the Income Statement affect the Balance Sheet?