How to Read a Company's Financial Statements: Profit, Cash Flow and Debt

The short answer

Start with this chain to understand a company and read its balance sheet:

business activity -> revenue and expense recognition -> accounting profit -> working-capital and non-cash effects -> operating cash flow -> investment and financing -> balance sheet, obligations and future earnings capacity

Profit may take time to become cash. The timing of receivables, inventory, supplier payments and customer prepayments can move cash between periods. Depreciation, stock-based compensation and deferred taxes can also widen the gap between profit and cash. That is why a gap between profit and operating cash flow is a reason to investigate, but not proof of accounting manipulation.

The key question is whether the gap has a temporary and reasonable explanation or whether it becomes a recurring cash shortfall over several years. To answer it, read the three statements, the notes and the contractual obligations together.

What is a balance sheet?

A balance sheet, or statement of financial position, shows what a company owns, what it owes and the accounting value attributed to shareholders at a specific date. It is a snapshot. A balance sheet dated December 31 does not, by itself, describe liquidity on every day of the year.

The basic equation is:

assets = liabilities + equity

Assets include cash, marketable securities, receivables, inventory, property and equipment and other items. Liabilities include borrowings, lease obligations, trade payables and other obligations. Equity is the accounting residual attributable to shareholders. It is not the same as the company's market value.

The right answer to “how do you read a balance sheet?” is therefore broader than this one statement. U.S. 10-K filings include audited financial statements, notes and management discussion. For a Turkish company, the same process runs through the financial position statement, income statement, cash-flow statement and notes disclosed on KAP. The SEC's guide to reading a 10-K and KAP are the main access points for those two filing systems.

Three statements, three questions

IAS 7 classifies cash flows as operating, investing and financing. Under the indirect method, net income is reconciled to operating cash flow through non-cash items and working-capital movements. This connection does not measure earnings quality on its own. It does show how reported profit becomes cash.

The income statement answers “what happened during the period?” The balance sheet answers “what remained at the end of the period?” The cash-flow statement answers “through which channel did money move?” Understanding a company means testing whether the answers fit together.

Why does profit not always become cash?

Revenue may be recorded when the company has delivered the economic activity required by accounting rules, not only when the customer has paid. That is important for measuring business performance. It is also why net income and cash entering the bank account are not the same thing.

When moving from net income to operating cash flow, focus on:

• An increase in receivables can mean that sales were recorded but cash has not yet been collected.
• An increase in inventory can show preparation for growth or cash tied up in goods that have not sold.
• An increase in trade payables can be normal use of supplier terms. Over several periods, it can also create a financing effect that later reverses.
• Customer prepayments and deferred revenue can bring cash in before revenue is recognized.
• Depreciation, amortization, stock-based compensation and deferred taxes affect net income without creating the same amount of current-period cash movement.

It is therefore wrong to treat the entire difference as “real profit” when operating cash flow exceeds net income. It is equally wrong to treat all of net income as suspect when a difference exists. The reader needs to identify the source of the difference and test whether it persists.

How I read Amazon's 2025 filing

Amazon provides a useful teaching case because one 10-K brings together profit, cash, heavy investment, debt, leases, commitments and accounting estimates. This is not a buy-or-sell judgment about the company. It makes the connection between the statements visible.

The Amazon 2025 Form 10-K, filed on February 5, 2026, reports the following annual figures:

I calculated these ratios from the reported figures. Net margin rose from 9.3% in 2024 to 10.8% in 2025. Operating-cash-flow margin increased from 18.2% to 19.5%. At the same time, net cash capital expenditure rose from 12.2% of sales to 17.9%, while Amazon's own free-cash-flow margin fell from 6.0% to 1.6%. Operating cash flow relative to net income also declined, from 2.0 times to 1.8 times.

This table blocks two easy conclusions. “Profit rose, so there is no problem” is incomplete. “Free cash flow fell, so growth is failing” is premature. In 2025, operating cash increased while investment grew much faster. The question is whether that investment can produce sufficient future cash and returns and whether it can be financed through a slower period.

How free is free cash flow?

Amazon defines free cash flow as operating cash flow less purchases of property and equipment, net of proceeds from sales and incentives. The company presents it as a non-GAAP measure. It also says the measure excludes debt principal, acquisitions and other cash uses and should not be viewed as the cash remaining after all discretionary expenditures.

That distinction matters. In ordinary language, “free cash flow” can sound like cash the company can spend however it wants. Companies may use different formulas. Read the company's definition first, then test whether it is consistent across years. Do not rely on one measure without comparing it with GAAP operating cash flow.

What do non-cash items show?

Amazon's 2025 operating-cash-flow reconciliation includes $65.8 billion of depreciation and amortization, $19.5 billion of stock-based compensation and $11.5 billion of deferred-income-tax adjustments. These items connect accounting profit to cash. They do not all have the same economic meaning.

Depreciation allocates the cost of an earlier investment across periods. It may not be a current-period cash outflow, but the company may need to reinvest to replace its assets. Stock-based compensation may not be a cash payment, but it can dilute shareholders. Deferred taxes separate tax accounting from the timing of cash tax payments. “Non-cash” therefore does not mean “irrelevant.”

Why is working capital seasonal?

Amazon says holiday-season sales at year-end typically increase cash, marketable securities and accounts payable, while accounts payable and cash can decline in the first three months of the following year. A year-end balance sheet therefore captures one moment in the operating cycle.

How do receivables, inventory and trade payables move over several years? In which part of the year is cash generated? Before treating a year-end increase in cash as permanent operating improvement, ask those questions.

How should the balance sheet and debt be read together?

At the end of 2025, Amazon had approximately $123.0 billion of cash and marketable securities and $68.8 billion of long-term debt at face value. The simple difference suggests a cash surplus. It is not a complete net-debt calculation. Current borrowings, lease liabilities, financing obligations, purchase commitments and the liquidity of the securities need separate review.

Amazon's 2025 balance sheet included $87.3 billion of long-term lease liabilities. The company disclosed $439.7 billion of total contractual commitments at the same date. That total is not debt. It includes leases, purchase obligations and other commitments. It does, however, make future cash needs that do not sit in one debt line more visible.

There are two opposite mistakes:

• Looking only at financial debt and ignoring leases and purchase commitments understates future cash needs.
• Adding every contractual commitment to debt overstates leverage by treating economically different items as identical.

To assess debt risk, ask about maturities, interest expense, operating cash flow, liquidity and how the business behaves under stress. Dividing operating income by interest expense can provide a quick sense of coverage. For Amazon, that ratio was approximately 28.5 times in 2024 and 35.2 times in 2025. It does not cover principal repayments, leases or capital expenditure, so it is not a credit-rating or debt-service conclusion.

Why do the notes matter as much as the statements?

Financial statements look orderly. The assumptions that matter most may be in the notes. In 2025, Amazon changed the estimated useful life of a subset of servers and networking equipment from six years to five years. The change increased depreciation and amortization expense by $1.4 billion and reduced net income by $1.0 billion. It is not evidence of an accounting violation. It does show that reported profit is sensitive to estimates about how long assets will be used.

Amazon also reported $15.2 billion of other income in 2025. Most of that amount related to observable price changes in Anthropic preferred stock and reclassification adjustments. A valuation movement that increases net income is not the same as recurring operating revenue.

In the notes, look for:

• When is revenue recognized?
• Did useful-life or impairment assumptions change?
• Do receivables, inventory and trade payables fit the operating cycle?
• What do lease, guarantee, purchase and financing commitments include?
• Did investment gains or one-time items materially lift net income?
• What is the company's exact definition of each non-GAAP measure?

What does the academic literature tell us?

Financial-statement analysis is not only a practical checklist. A large literature studies why accounting information can carry economic information and where its limits lie.

Ohlson's 1995 model relates equity value to current and future earnings, book values and dividends. It provides a theoretical explanation for why accounting information can enter a market-value model. It is not a stock-price forecast.

Dechow, Ge and Schrand's review of earnings quality does not define quality through one ratio. Persistence, predictive ability, the relationship between earnings and cash, the measurement objective and the company context all matter. Tracking profit conversion to cash is useful, but the review does not provide a universal “good” threshold.

Chan and co-authors report that accruals, a measure of the difference between accounting earnings and cash flow, were negatively associated with future returns in their research design. That is a finding from a defined study. It does not prove that every period of high accruals will lead to poor returns or that the relationship has one cause.

Altman's study used financial ratios and discriminant analysis to study corporate-bankruptcy prediction. Piotroski's study combined multiple historical signals across profitability, leverage, liquidity and operating efficiency. Both approaches remind us that one debt ratio cannot fully describe a company. Their samples, sectors and periods also mean they should not be applied mechanically to every company today.

The most defensible lesson from the literature is that financial-statement information matters, but its meaning depends on context and on how the measure was produced.

Red flags, but not automatic verdicts

The following signals justify deeper research:

• Net income rises over several periods while operating cash flow does not keep pace or declines.
• Receivables or inventory grow faster than sales.
• Operating cash flow depends heavily on rising trade payables or a one-time working-capital movement.
• Free cash flow is negative because of investment, but the company cannot explain demand, capacity use or the path to returns.
• Financial debt looks low while leases, purchase obligations, guarantees or other commitments grow quickly.
• A material share of net income comes from non-operating valuation gains or changes in accounting estimates.
• Non-GAAP measures change definition over time or make the GAAP result look consistently weaker without a clear reconciliation.

None of these signals proves fraud, bankruptcy or a bad investment. A red flag is a prompt for explanation. The next step is to read the notes, inspect the multi-year trend and compare companies with similar business models.

A five-step reading framework

1. Understand the business model and accounting policies

When does the company earn revenue, when does it collect cash and which investments are necessary to keep operating? Revenue recognition, inventory, depreciation, stock-based compensation and impairment policies are the starting point.

2. Read the income statement from the top down

Sales growth is not enough. Gross and operating margins, the gap between operating income and net income, interest and tax effects, and one-time items should be considered together. How much of net income comes from the core business?

3. Connect net income to operating cash flow

Find the largest non-cash items and working-capital movements in the reconciliation. Are receivables, inventory, payables and customer prepayments moving with the operating cycle, or creating a temporary timing effect? This is the heart of the question “why does profit not become cash?”

4. Separate investment needs from free cash flow

Think about capital expenditure as a mix of growth investment and investment needed to maintain existing capacity. What definition of free cash flow does the company use? Does it include debt principal, acquisitions, leases and other cash needs? The number has no clear meaning until the definition is read.

5. Stress-test the balance sheet, maturities and notes

Compare cash, securities and operating cash flow with debt maturities. Make leases and purchase commitments visible without relabelling every commitment as debt. What happens if interest rates, foreign exchange, demand or the investment payoff moves against the company? Then repeat the process over two or three years.

For a Turkish company, this framework can be applied through KAP. Open the statements and notes, confirm the reporting date and currency, then build a multi-year worksheet using the company's own definitions.

The strongest counterargument

Amazon's decline in free cash flow in 2025 does not prove that investment was inefficient or growth fragile. Data centers, servers and networking equipment can reduce today's cash while the related revenue and operating profit arrive later. Rising operating cash flow and margins in the same year can support a coherent explanation in which investment is expanding the business.

That counterargument matters. Financial-statement analysis should not automatically treat capital expenditure as bad. It should also not accept the label “growth investment” without testing it. Demand, capacity utilization, pricing, margins, asset life and financing costs should be followed together. The two-year Amazon comparison opens those questions. It does not prove future returns.

What would change the conclusion?

The conclusion could change if, over a longer period, operating cash flow consistently funded investment and obligations. For Amazon, a decline in investment intensity alongside continued operating-cash-flow growth would strengthen the growth-investment interpretation. Weaker cash flow, a reversal in supplier financing or faster-than-expected cash outflows from commitments would make the risk interpretation more serious.

A single accounting-estimate revision does not determine the quality of all earnings. But if estimate changes become frequent, cash performance weakens and the gap between the company's explanations grows, the review should become more demanding.

What to watch next

This Guide does not produce a stock screen. When a new filing arrives, it is more useful to monitor five changes:

• The gap between net income, operating cash flow and capital expenditure.
• Receivables, inventory, trade payables and customer prepayments relative to sales.
• Debt maturities, interest expense, lease liabilities and other contractual commitments.
• Whether the definition of free cash flow and other non-GAAP measures remains consistent.
• The effect of non-operating gains, estimate revisions and impairments on net income.

Read these changes over several years and against companies with similar business models, not in isolation from one quarter.

Conclusion

The answer to “how do you read a balance sheet?” is not one ratio. The income statement shows performance, the cash-flow statement shows how that performance becomes cash, and the balance sheet and notes show liquidity, obligations and accounting assumptions.

In Amazon's case, sales, net income and operating cash flow all rose in 2025. Capital expenditure grew faster, so the company's own free-cash-flow measure narrowed materially. That is not necessarily a contradiction. A business can generate operating cash and spend more of it on future growth at the same time. The reader's task is to determine whether the investment is productive, financeable and repeatable.

The strongest reading asks three questions together: How was the profit produced? Where did the cash go? Under what conditions can the obligations in the balance sheet and notes be carried?

Methodology and limitations

In this Guide, I use the 2024 and 2025 consolidated figures from Amazon's 2025 Form 10-K to explain how financial-statement analysis works. The ratios are descriptive calculations from reported figures. They are not universal healthy-ratio thresholds, bankruptcy predictions, allegations of accounting fraud or forecasts of future share returns.

Amazon's combination of businesses makes the case useful and limiting at the same time. Retail, cloud, advertising, content and investments have different economics. Banks and insurers may give debt, cash and operating capital different meanings, so this framework should not be transferred directly to them. For Turkish companies, KAP disclosures should be read with the relevant TFRS and sector definitions.

The data cutoff is August 1, 2026.

Sources and further reading

• Amazon 2025 Form 10-K
• SEC: How to read a 10-K and 10-Q
• IFRS Foundation: IAS 1, presentation of financial statements
• IFRS Foundation: IAS 7, statement of cash flows
• KAP
• Ohlson, Earnings, Book Values, and Dividends in Equity Valuation
• Dechow, Ge and Schrand, Understanding Earnings Quality
• Chan, Chan, Jegadeesh and Lakonishok, Earnings Quality and Stock Returns
• Altman, Financial Ratios, Discriminant Analysis and the Prediction of Corporate Bankruptcy
• Piotroski, Value Investing: The Use of Historical Financial Statement Information to Separate Winners from Losers

This work is for research and educational purposes. It is not investment advice.