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    How the Cash Flow Statement Works: The Three Sections

    The cash flow statement turns accrual profit into cash, sorted into operating, investing and financing. How it works, on Microsoft's fiscal 2025 numbers.

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    Introduction

    Net income tells a company how much it earned; it does not tell it how much cash it has to spend. Microsoft reported $101.8 billion of net income for its fiscal year ended June 2025. Its operations generated $136.2 billion of cash, it spent $64.6 billion on data centers and other property, it returned $42.5 billion to shareholders through dividends and buybacks, and its cash balance still rose by $11.9 billion. None of those figures, except the first, appears on the income statement. All of them appear on the cash flow statement.

    The statement exists because accrual accounting, which records revenue when earned and costs when incurred, separates reported profit from the movement of cash. The cash flow statement reverses that separation. It explains, line by line, how a company's cash balance changed between two balance sheet dates, and it sorts every receipt and payment into one of three activities: operating, investing and financing. For a banker, it is the statement that shows whether earnings turn into cash, how much the business must reinvest to sustain itself, and how it funds and rewards its owners.

    Why the Cash Flow Statement Exists

    US companies have presented a statement of cash flows since 1988, under Statement No. 95, which the Financial Accounting Standards Board (FASB) issued in November 1987. It superseded the old statement of changes in financial position and required companies to report their cash receipts and payments in its place. Its predecessor let companies define "funds" in different ways, often as working capital, which made it hard to compare. The cash basis removed that ambiguity: cash is cash, whatever accounting policies the company uses.

    The standard set out what the statement is for, and the list still reads like a banker's checklist. Used with the other statements, it should help investors and creditors assess a company's ability to generate future cash flows, its ability to meet its obligations and pay dividends, its needs for external financing, the reasons net income differs from the related cash receipts and payments, and the effect of both cash and non-cash investing and financing transactions on its financial position. Each of those assessments corresponds to a question bankers ask on almost every mandate: can the business fund itself, can it carry more debt, are its earnings real, and what has it committed to that has not yet cost cash.

    What the Statement Adds to the Other Two

    The statement complements the other two. The income statement measures performance on an accrual basis, and the balance sheet records positions at two dates. Neither shows liquidity directly. A company can report rising profits while running out of cash, because customers have not paid, inventory is piling up or capital spending exceeds earnings, a pattern explored in why profitable companies run out of cash. The cash flow statement makes that visible. The distinction between the accrual and cash views is explained in accrual vs cash accounting.

    The Three Sections

    Every cash receipt and payment belongs to one of three categories, classified under Accounting Standards Codification (ASC) 230 according to the nature of the activity that produced it.

    Operating Activities

    Operating activities cover the cash effects of the transactions that make up the business: cash received from customers, and cash paid to suppliers, employees, landlords and tax authorities. Under US generally accepted accounting principles (US GAAP), interest paid and received and dividends received are also operating. Operating is the default category: cash flows that do not qualify as investing or financing land here.

    Cash flow from operating activities

    The cash generated or used by a company's core business during a period, including collections from customers and payments to suppliers, employees, landlords and tax authorities. Under the indirect method it is presented as net income adjusted for non-cash items and changes in working capital.

    Almost every company presents operating cash flow using the indirect method: it starts from net income, adds back non-cash charges such as depreciation and stock-based compensation, removes non-cash gains, and adjusts for changes in working capital balances. The reconciliation is explained step by step in cash flow from operations: the indirect method.

    The alternative, the direct method, lists the operating cash flows themselves: cash collected from customers, cash paid to suppliers and employees, interest and taxes paid. It is easier for a non-specialist to read, and US GAAP encourages it, but a company that uses it must still present the indirect reconciliation from net income, so few bother. The practical consequence is that the operating section of most US cash flow statements reads as a bridge from accrual profit to cash rather than as a list of receipts and payments. The two presentations are compared in direct vs indirect method cash flow statements.

    Investing Activities

    Investing activities cover cash spent on and received from long-term assets and investments: capital expenditure on property and equipment, purchases of businesses, purchases and sales of securities, and proceeds from selling assets. Investing cash flow is usually negative for a growing company, because it is investing more than it receives from disposals, and its largest line for most businesses is capital expenditure. The section is covered in detail in cash flow from investing.

    Financing Activities

    Financing activities cover cash exchanged with the providers of capital: borrowing and repaying debt, issuing and repurchasing shares, and paying dividends.

    Cash flow from financing activities

    Cash received from and paid to a company's lenders and shareholders during a period, including debt issued and repaid, shares issued and repurchased, and dividends paid.

    The boundary with operating runs through the middle of a loan. Under US GAAP, interest paid is operating, but the repayment of debt principal is financing, so a single loan payment can be split across two sections. Dividends follow a similar split: dividends paid to the company's own shareholders are financing, while dividends it receives on its investments are generally operating.

    Reading a Real Statement: Microsoft, Fiscal 2025

    Microsoft's cash flow statement for the years ended June 2024 and 2025, condensed, shows all three sections and how they combine into the net change in cash:

    Cash flow statement
    Microsoft, condensed cash flow statements
    $ in millions, fiscal years ended June 30
    Line item20242025
    Net income88,136101,832
    Depreciation, amortization and other22,28734,153
    Stock-based compensation10,73411,974
    Deferred taxes and other non-cash items(4,433)(6,447)
    Changes in working capital1,824(5,350)
    Net cash from operations118,548136,162
    Additions to property and equipment(44,477)(64,551)
    Acquisitions, net of cash acquired(69,132)(5,978)
    Investments and other, net16,639(2,070)
    Net cash used in investing(96,970)(72,599)
    Common stock repurchased(17,254)(18,420)
    Common stock cash dividends paid(21,771)(24,082)
    Debt issued and repaid, net575(8,962)
    Stock issued and other693(235)
    Net cash used in financing(37,757)(51,699)
    Effect of exchange rates(210)63
    Net change in cash and cash equivalents(16,389)11,927

    Condensed and reordered from Microsoft's fiscal 2025 Form 10-K, which presents financing before investing. Cash and cash equivalents rose from 18,315 to 30,242 in fiscal 2025.

    What the Operating Section Shows

    Operating cash flow of $136.2 billion exceeded net income by about $34 billion, mostly because of $34.2 billion of depreciation, amortization and other non-cash charges and $12.0 billion of stock-based compensation, partly offset by deferred taxes and $5.4 billion absorbed by working capital, largely a $10.6 billion increase in receivables. The ratio of operating cash flow to net income, about 1.3 times, says the earnings are well backed by cash. The non-cash items themselves are covered in non-cash items on the cash flow statement.

    What the Investing Section Shows

    The investing section tells the story of the strategy. Capital expenditure rose from $44.5 billion to $64.6 billion in one year, reflecting the build-out of data centers for cloud and artificial intelligence workloads. In fiscal 2024, investing outflows were dominated instead by $69.1 billion of acquisitions, the year in which Microsoft completed its purchase of Activision Blizzard. Two years of investing cash flow, read side by side, show a company shifting from buying growth to building it.

    Comparing capital expenditure with depreciation sharpens the picture. In fiscal 2025, Microsoft spent $64.6 billion on property and equipment against $34.2 billion of depreciation, amortization and other charges, a ratio of almost two to one. A company spending roughly what it depreciates is maintaining its asset base; one spending twice as much is expanding it, and its future depreciation will rise as the new assets enter service, weighing on operating margins unless revenue grows to match.

    What the Financing Section Shows

    The financing section shows how the company returned capital. In fiscal 2025, Microsoft paid $24.1 billion in dividends and spent $18.4 billion on buybacks, while reducing debt by about $9.0 billion. After those outflows, cash still rose by $11.9 billion, because operating cash flow exceeded investing and financing uses combined. Free cash flow, operating cash flow less capital expenditure, was about $71.6 billion, enough to fund the dividends and buybacks with room to spare.

    Classification Judgments That Move the Sections

    The three categories sound clear, but many cash flows have features of more than one, and where a company puts them changes how each section looks. The FASB addressed eight of the most common disputes in Accounting Standards Update (ASU) 2016-15. The update on classifying certain cash receipts and payments aimed to reduce diversity in practice, placing debt prepayment and extinguishment costs in financing, and requiring contingent consideration paid after an acquisition, if not paid soon after the deal, to be split between financing, up to the liability recognized at the acquisition date, and operating, for any excess. Other judgments, some settled by the same update and some still open, include:

    • Capitalized costs: software development costs that a company capitalizes usually appear as investing outflows; if expensed, they reduce operating cash flow instead. Two companies with the same spending can therefore show different operating cash flow.
    • Supplier finance programs: payments to a bank that has paid suppliers on the company's behalf are operating if the obligation stays a trade payable, but financing if it has been recharacterized as debt.
    • Securitized receivables: collections on the beneficial interest a company keeps after securitizing its trade receivables are investing inflows, not operating.
    • Insurance proceeds: classified according to the nature of the loss, so a payout for a destroyed factory is investing, while business interruption cover is operating.
    • Distributions from equity method investees: split between operating returns on the investment and investing returns of the investment, using the company's chosen approach.

    The capitalization point matters most for banking analysis. A company that capitalizes large amounts of software development reports higher operating cash flow and higher investing outflows than a company that expenses them, so free cash flow, which deducts capital expenditure, is usually more comparable than operating cash flow alone.

    Patterns Across a Company's Life Cycle

    The signs of the three sections, read together, often say where a company is in its life. The typical patterns look like this:

    StageOperatingInvestingFinancing
    Start-upNegativeNegativePositive: raising equity or debt
    Fast growthSmall or positiveLarge negative: heavy capexPositive or small
    MatureLarge positiveNegative: maintenance and growth capexNegative: dividends, buybacks, repayments
    Decline or distressSmall or negativePositive: selling assetsNegative: forced repayments, or positive: rescue funding

    The patterns are a starting point, not a rule. Microsoft shows the mature pattern even while investing heavily, because its operating cash flow is large enough to fund record capital spending and return cash to shareholders at the same time.

    How the Statement Connects to the Other Two

    The cash flow statement is the bridge between the income statement and the balance sheet. It starts from net income, the bottom line of the income statement. Almost every other line explains the change in a balance sheet account: receivables, inventory, payables, property and equipment, debt and equity. And its total, the net change in cash, must equal the change in the cash line between the opening and closing balance sheets, including restricted cash.

    That tie is what makes the statement a check on the others. If the changes in the balance sheet, the income statement and the cash flow statement do not reconcile, something has been misclassified or omitted. The full set of links, traced line by line, is in how the three financial statements link together. Transactions that involve no cash at all, such as acquiring equipment with a lease or converting debt into shares, are excluded from the three sections and disclosed separately, as covered in supplemental disclosures and non-cash transactions.

    Quarterly Cash Flow Statements

    Quarterly reports present the cash flow statement for the year to date only, not for the quarter alone. A third-quarter 10-Q shows nine months of cash flows, so the cash flows of the third quarter itself have to be derived by subtracting the six-month figures from the previous 10-Q, and the fourth quarter by subtracting nine months from the full year. Building last-twelve-month operating cash flow or free cash flow follows the same arithmetic as for earnings, as described in calculating LTM figures. Seasonal businesses often show very different operating cash flow quarter by quarter, as working capital builds ahead of a peak season and unwinds after it, which is another reason to judge cash generation over a full year.

    What Bankers Take From the Cash Flow Statement

    Bankers read the cash flow statement for a handful of figures and patterns:

    • Cash conversion: operating cash flow relative to net income or earnings before interest, taxes, depreciation and amortization (EBITDA), which shows whether earnings turn into cash.
    • Capital intensity: capital expenditure relative to revenue and to depreciation, which shows how much the business must reinvest to grow or stand still.
    • Free cash flow: operating cash flow less capital expenditure, the starting point for the definitions used in valuation and credit work.
    • Funding mix: whether dividends and buybacks are funded by free cash flow, by borrowing or by asset sales.
    • Acquisitiveness: how much of the company's growth is bought rather than built, visible in acquisition outflows.

    The different free cash flow measures, unlevered, levered and to equity, all start from these lines and differ in how they treat interest, debt and taxes, as set out in free cash flow definitions.

    The same caution applies to large one-time items inside operating cash flow, such as a big tax payment on a divestiture gain or a litigation settlement, which can make a normal year look weak. Separating recurring from one-time cash flows is the cash equivalent of normalizing earnings, and it matters just as much for valuation.

    The Cash Flow Statement in Credit Analysis

    Lenders read the statement with one question in mind: how much cash is left to service debt after the business has kept itself running. A common sequence starts from operating cash flow, deducts capital expenditure to reach free cash flow, deducts dividends to reach free cash flow after dividends, and compares the result with scheduled debt repayments and total debt. A company where that figure covers its annual repayments comfortably can reduce leverage without refinancing; one that relies on new borrowing to pay dividends cannot. Rating agencies build similar measures of cash flow relative to debt, and the ratios bankers use alongside them are covered in leverage and coverage ratios.

    Read this way, the cash flow statement answers the questions that matter most for lenders and buyers: how much cash the business generates, how much it must spend to keep generating it, and where the rest goes. The other statements say what a company earned and what it owns; this one says what it can actually afford.

    Interview Questions

    2
    Question #1Easy

    Walk me through the cash flow statement.

    The cash flow statement explains the change in cash between two balance sheets, in three sections:

    1. 1.Operating activities: start with net income, add back non-cash charges such as depreciation, amortization, stock-based compensation and deferred taxes, remove non-operating gains and losses, and adjust for changes in working capital (receivables, inventory, payables, deferred revenue). The result is cash flow from operations.
    2. 2.Investing activities: capital expenditures, acquisitions, proceeds from selling assets or businesses, and purchases and sales of investments.
    3. 3.Financing activities: debt raised and repaid, shares issued and repurchased, and dividends paid.

    The three sections add up to the net change in cash, which, together with any exchange-rate effect, equals the change in cash (including restricted cash) on the balance sheet.

    Bankers use it for cash conversion (operating cash flow against net income or EBITDA), capital intensity (capex against revenue and depreciation), free cash flow, and how dividends and buybacks are funded.

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    Question #2Easy

    Why does a company need a cash flow statement if it already has an income statement?

    Because the income statement measures profit on an accrual basis, not cash. Revenue is recorded when earned even if the customer hasn't paid, expenses when incurred even if unpaid, and the cost of equipment is spread over years through depreciation. None of that tells you how much cash the business actually produced or used.

    The cash flow statement fills that gap. It shows:

    • •Whether earnings turn into cash: working capital growth, such as rising receivables and inventory, can absorb the cash from a profitable year.
    • •Cash spending that never hits the income statement directly: capex, acquisitions, debt repayments, buybacks and dividends.
    • •How the company is funded: whether it pays its way from operations or relies on borrowing and equity raises.

    That's why a company can be profitable and still run out of cash, and why lenders and buyers focus on free cash flow rather than net income alone.

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