Financial statements

How to read, build and interrogate the income statement, balance sheet, cash flow statement and statement of shareholders' equity: anatomy line by line, how one transaction flows through all three, EBITDA and non-GAAP measures, free cash flow, ratio and DuPont analysis, quality-of-earnings red flags, and where to find it all in a 10-K. The worked example is the invented Acme Analytics, Inc. whose FY2026 books are built entry by entry in accounting; every number below ties out. Using the numbers for decisions and pricing a company is in corporate finance and valuation; burn, runway and SaaS unit economics are in startup finance.

The statements at a glance

Around them in a public filing: MD&A (management's narrative of results, liquidity and known trends), the auditor's report (opinion, critical audit matters, any going-concern paragraph) and management's report on internal control.

The three connect: net income starts the cash flow statement and flows into retained earnings; the cash flow statement explains the change in the balance sheet's cash line. Profit is an opinion (built on accrual estimates); cash is a fact. Read all three together.

Income statement

ACME ANALYTICS, INC. (invented)
STATEMENT OF OPERATIONS, YEARS ENDED 31 DECEMBER (US$)
                                        FY2026        FY2025
Revenue
  Subscription                       3,000,000     2,150,000
  Hardware                             200,000       150,000
Total revenue                        3,200,000     2,300,000
Cost of revenue                        700,000       540,000
Gross profit                         2,500,000     1,760,000
Operating expenses
  Research and development             850,000       700,000
  Sales and marketing                  600,000       450,000
  General and administrative           500,000       380,000
Total operating expenses             1,950,000     1,530,000
Operating income                       550,000       230,000
Interest income                         22,000        10,000
Interest expense                       (12,000)            -
Income before income taxes             560,000       240,000
Provision for income taxes (25%)       140,000        60,000
Net income                             420,000       180,000
 
Earnings per share   basic               0.042         0.020
                     diluted             0.040         0.019
Weighted shares      basic          10,000,000     9,000,000
                     diluted        10,480,000     9,480,000
 
Included above (FY2026): depreciation 25,000 (G&A);
amortization of capitalized software 20,000 (cost of revenue);
stock-based compensation 40,000 (R&D 20k, S&M 10k, G&A 10k).
FY2025 diluted shares assume the same 480,000 incremental
option shares as FY2026.

FY2026 cost of revenue is hosting $380,000 + support salaries $180,000 + hardware $120,000 + software amortization $20,000. The full ledger is in accounting.

Earnings per share

Diluted EPS adds shares that would exist if dilutive securities converted: options and warrants by the treasury stock method (assume exercise, and assume the proceeds buy back shares at the average price), convertibles by the if-converted method. Anti-dilutive securities (those that would raise EPS) are excluded, so a loss-making company's diluted EPS equals its basic EPS.

Acme (private companies need not present EPS; shown for illustration): net income $420,000; 10,000,000 shares (treating the 2 January issue as outstanding all year); 800,000 options with a $0.20 strike; average share value $0.50.

Balance sheet

Working capital = current assets − current liabilities. Operating working capital excludes cash and debt: (receivables + inventory + prepaids) − (payables + accruals + deferred revenue). Growth that consumes working capital consumes cash.

ACME ANALYTICS, INC. -- BALANCE SHEETS, 31 DECEMBER (US$)
                                          2026          2025
ASSETS
Cash and cash equivalents            1,776,000       600,000
Accounts receivable, net of allowance
  of 17,000 and 10,000                 363,000       240,000
Inventory                               35,000        20,000
Prepaid expenses                        30,000        24,000
Total current assets                 2,204,000       884,000
Property and equipment, net of
  accum. depreciation 45,000/20,000     45,000        40,000
Capitalized software, net of
  accum. amortization 20,000/0         100,000             -
TOTAL ASSETS                         2,349,000       924,000
 
LIABILITIES
Accounts payable                        45,000        30,000
Accrued expenses                        60,000        40,000
Deferred revenue                       520,000       400,000
Income tax payable                      30,000        20,000
Total current liabilities              655,000       490,000
Long-term debt (8%, due 2029)          300,000             -
TOTAL LIABILITIES                      955,000       490,000
 
SHAREHOLDERS' EQUITY
Common stock and paid-in capital
  (10,000,000 and 9,000,000 shares)    640,000       100,000
Retained earnings                      754,000       334,000
TOTAL EQUITY                         1,394,000       434,000
TOTAL LIABILITIES AND EQUITY         2,349,000       924,000
 
Working capital                      1,549,000       394,000
Operating working capital             (227,000)     (156,000)

Acme's operating working capital is negative: customers prepay (deferred revenue of $520,000) faster than Acme has to pay anyone. That is the SaaS "customer-funded growth" pattern, and it is why a growing subscription business can generate more operating cash than profit.

Cash flow statement

Under IFRS, interest and dividends have been a policy choice (IAS 7); the IFRS 18 amendments from 2027 put interest paid in financing and interest received in investing for most non-financial companies. Compare CFO across the two frameworks with care.

Indirect method

Almost every company uses the indirect method: start from net income, remove non-cash items, then adjust for changes in working capital.

ACME -- STATEMENT OF CASH FLOWS, FY2026 (US$, indirect method)
OPERATING ACTIVITIES
Net income                                          420,000
Adjustments for non-cash items
  Depreciation                                       25,000
  Amortization of capitalized software               20,000
  Stock-based compensation                           40,000
Changes in operating assets and liabilities
  Accounts receivable, net                         (123,000)
  Inventory                                         (15,000)
  Prepaid expenses                                   (6,000)
  Accounts payable                                   15,000
  Accrued expenses                                   20,000
  Deferred revenue                                  120,000
  Income tax payable                                 10,000
Net cash from operating activities                  526,000
 
INVESTING ACTIVITIES
Purchases of property and equipment                 (30,000)
Capitalized software development                   (120,000)
Net cash used in investing activities              (150,000)
 
FINANCING ACTIVITIES
Proceeds from issuance of common stock              500,000
Proceeds from term loan                             300,000
Net cash from financing activities                  800,000
 
Net increase in cash                              1,176,000
Cash at beginning of year                           600,000
Cash at end of year                               1,776,000   = balance sheet
 
Supplemental: interest paid 10,000; income taxes paid 130,000

Each working-capital line is the balance-sheet change with the sign flipped for assets: AR net went from $240,000 to $363,000 (+$123,000), so cash is $123,000 lower than net income implies. Bad-debt expense needs no separate add-back here because the change is taken on AR net of the allowance.

Direct method

The direct method lists actual cash receipts and payments. The FASB encourages it but requires the indirect reconciliation as well, so few companies bother. For a founder it is the more intuitive view, and it is what a bank statement shows.

ACME -- OPERATING CASH FLOWS, FY2026 (direct method)
Cash received from customers  (3,188,000 - 6,000 refund)  3,182,000
Interest received                                             22,000
Cash paid to suppliers (AP 826,000 + rent 60,000
  + prepaids 60,000)                                        (946,000)
Cash paid to employees (1,712,000 total payroll
  - 120,000 capitalized into software)                    (1,592,000)
Interest paid                                                (10,000)
Income taxes paid                                           (130,000)
Net cash from operating activities                           526,000

Both methods give $526,000. Note the $120,000 of engineering payroll that appears in investing, not operating, because it was capitalized: an honest accounting choice here, and a classic lever for flattering CFO elsewhere.

Statement of shareholders' equity and the notes

ACME -- STATEMENT OF SHAREHOLDERS' EQUITY, FY2026 (US$)
                            Shares     Paid-in   Retained      Total
                                       capital   earnings     equity
Balance, 31 Dec 2025     9,000,000     100,000    334,000    434,000
Issuance of common       1,000,000     500,000          -    500,000
Stock-based compensation         -      40,000          -     40,000
Net income                       -           -    420,000    420,000
Balance, 31 Dec 2026    10,000,000     640,000    754,000  1,394,000

Notes to read first in any set of statements:

One transaction through all three statements

The classic finance-interview drill: change one line, then walk it through income statement → cash flow → balance sheet, and check the balance sheet still balances. Assume a 25% tax rate and that tax is paid in cash in the period.

Depreciation rises by $10.

Acme buys $100 of inventory for cash, then sells it for $150 on credit.

Acme borrows $100 at 10% and pays a year's interest.

Acme bills and collects a $120,000 annual contract on 1 October (ignore tax).

If you can do these four in your head, you can read any statement.

EBITDA, adjusted EBITDA and non-GAAP measures

Acme FY2026: EBIT $550,000 + D&A $45,000 = EBITDA $595,000 (18.6% margin). "Adjusted EBITDA" adding back stock-based compensation: $635,000.

SEC rules on non-GAAP measures

Under IFRS 18 (from 2027), "management-defined performance measures" used in public communications must be reconciled and disclosed in an audited note.

The critique

Warren Buffett, Berkshire Hathaway 2000 shareholder letter: "References to EBITDA make us shudder — does management think the tooth fairy pays for capital expenditures?" Charlie Munger went further at the 2003 Berkshire annual meeting; as widely reported, he said that whenever you see "EBITDA" you should substitute "bullshit earnings" (paraphrased; wording varies between accounts).

The point: depreciation is the income statement's record of capital already spent and that must be spent again. For an asset-light SaaS company D&A is small and EBITDA is close to EBIT; for a telecom, airline or data-center business EBITDA can be enormously larger than any cash the owners will ever see. Always reconcile adjusted numbers back to GAAP net income and CFO, and ask which "one-time" items appeared last year too.

Free cash flow

• "Free cash flow" has no GAAP definition; every company and data provider defines it slightly differently. Read the reconciliation. Under SEC rules it is a non-GAAP liquidity measure and may not be shown per share.
• FCFE here is inflated by a one-off $300,000 loan: borrowing is not a recurring source of value. Use normalized net borrowing when valuing.
• The two FCFF formulas give different numbers on real statements (actual vs notional tax, interest income, non-cash items). Pick one and apply it consistently. DCF mechanics are in valuation; WACC in corporate finance.

Ratio analysis

Ratios make companies of different sizes comparable and turn statements into questions. None is "good" in the abstract: what is healthy depends on industry, business model, growth stage, seasonality and accounting choices. Compare a company with its own history and its closest peers, not a textbook threshold. Acme values use FY2026, with averages of opening and closing balances where a flow is divided by a stock.

Liquidity

Solvency and leverage

Profitability

Definitions of invested capital vary. Acme's operating invested capital (operating working capital + net fixed and software assets) is negative (−$82,000 at year-end) because customers prepay, so a "cash-excluded" ROIC is meaningless for it. Negative invested capital is a feature of prepaid subscription and marketplace models, not an error.

Efficiency

The CCC ignores deferred revenue. For a subscription business that bills annually upfront, the real cash cycle is far better than 29 days suggests; look at deferred revenue growth and CFO alongside it.

DuPont analysis

The three-step DuPont identity splits ROE into what drives it:

Two companies with 20% ROE can be completely different: a luxury brand (high margin, low turnover, low leverage), a supermarket (thin margin, high turnover) or a bank (thin margin, low turnover, 10×+ leverage). DuPont tells you which. Acme's high ROE comes mostly from margin and turnover; its equity multiplier is modest, and much of its "leverage" is deferred revenue rather than debt. The 5-step version further splits net margin into tax burden (NI ÷ EBT), interest burden (EBT ÷ EBIT) and operating margin (EBIT ÷ revenue).

Common-size and trend analysis

Common-size (vertical) analysis expresses every line as a percentage of revenue (income statement) or total assets (balance sheet), so you can compare across years and companies of different sizes. Trend (horizontal) analysis shows growth rates line by line.

Reading: every cost line grew slower than revenue, so operating margin rose 7 points: operating leverage. The questions it raises: is R&D growing only 21% sustainable, or is under-investment flattering margins? Did capitalizing $120,000 of engineering pay (instead of expensing it) help? It did: had it been expensed, FY2026 R&D would be $970,000 and net income about $345,000, not $420,000.

Balance sheet trend: receivables (net) grew 51% against revenue growth of 39%, and year-end DSO rose from 38 to 41 days ($240,000 ÷ $2,300,000 × 365 → $363,000 ÷ $3,200,000 × 365). Small, but exactly the kind of drift to ask about.

Quality of earnings and red flags

Quality of earnings is how well reported profit reflects sustainable cash-generating performance. A quick test is cash conversion (CFO ÷ net income; Acme 1.25) and the accruals ratio, $(\text{NI} - \text{CFO}) \div \text{avg assets}$ (Acme −6.5%). Sloan (1996) found that earnings driven by large accruals persist less than earnings backed by cash.

Cases worth knowing (briefly and accurately):

The Sarbanes–Oxley Act of 2002 (CEO/CFO certification, auditor independence, the PCAOB, internal-control reporting) was the direct response to Enron and WorldCom.

SaaS metrics next to the statements

SaaS companies report operating metrics alongside GAAP numbers. They are not GAAP, are defined by each company, and are unaudited. Definitions and benchmarks are in startup finance; the essentials for reading statements:

Rules when reading: reconcile ARR to subscription revenue (ARR at year-end should be above the year's revenue for a growing company); check deferred revenue moves with billings; watch for definition changes between years.

Reading a 10-K and 10-Q

US public companies file with the SEC on EDGAR (sec.gov/edgar/search (opens in a new tab)): search by company name or ticker, filter by form type, or use full-text search. The annual 10-K is audited; the quarterly 10-Q contains condensed financial statements that are reviewed, not audited.

Other forms: 8-K (material events, generally within four business days: results, acquisitions, auditor changes, executive departures), DEF 14A (proxy), S-1 (IPO registration), Form 4 (insider trades), 20-F and 6-K (foreign private issuers).

A practical reading order: auditor's report (opinion, critical audit matters, going concern) → MD&A → the three statements (three to five years) → notes on revenue, debt, leases, SBC, taxes, related parties → Risk Factors diff against last year → earnings release non-GAAP reconciliation.

Templates and checklists

STATEMENT-READING CHECKLIST
FIRST PASS (15 min)
[ ] Auditor's opinion unqualified? Any going-concern or
    material-weakness language? Critical audit matters?
[ ] Revenue growth, gross margin, operating margin: 3-5 years
[ ] Net income vs CFO: 3-5 years (cash conversion)
[ ] FCF = CFO - capex (incl. capitalized software)
[ ] Cash, debt, maturities; runway if loss-making
[ ] Share count trend (dilution); SBC as % of revenue
INCOME STATEMENT
[ ] Revenue mix (segments, recurring vs one-off)
[ ] Cost lines as % of revenue; which are growing fastest?
[ ] Non-operating items and "other income" doing heavy lifting?
[ ] Effective tax rate and why it moved
BALANCE SHEET
[ ] AR vs revenue growth; DSO trend; allowance as % of AR
[ ] Inventory vs sales; DIO trend
[ ] Deferred revenue trend (leading indicator for SaaS)
[ ] Goodwill and intangibles as % of assets; impairments
[ ] Debt: rates, covenants, maturities; leases
CASH FLOW
[ ] Working capital swings explaining CFO
[ ] Capex vs depreciation (under-investing? over-capitalizing?)
[ ] Acquisitions, buybacks, dividends vs FCF
[ ] Financing reliance: is the company funding itself?
NOTES AND NON-GAAP
[ ] Revenue recognition and capitalization policies
[ ] Related parties, contingencies, commitments
[ ] Non-GAAP adjustments: same items every year?
[ ] Changes in estimates, policies, segments or KPIs

ONE-PAGE ANALYSIS TEMPLATE             Company: ________  FY: ____
BUSINESS (3 lines): what it sells, to whom, how it charges
_____________________________________________________________
 
                         FY-2      FY-1      FY0     Comment
Revenue               ________  ________  ________  ____________
  growth %            ________  ________  ________
Gross margin %        ________  ________  ________
Operating margin %    ________  ________  ________
Net income            ________  ________  ________
CFO                   ________  ________  ________
Capex (incl. cap. sw) ________  ________  ________
FCF / FCF margin %    ________  ________  ________
SBC % of revenue      ________  ________  ________
Cash                  ________  ________  ________
Debt / net debt       ________  ________  ________
DSO / DIO / DPO       ________  ________  ________
ROE / ROIC %          ________  ________  ________
Diluted shares        ________  ________  ________
 
DUPONT (FY0): margin ____ x turnover ____ x multiplier ____ = ROE ____
QUALITY OF EARNINGS: CFO/NI ____  accruals ratio ____  flags: ____
NON-GAAP GAP: adjusted EBITDA ____ vs GAAP operating income ____
TOP 3 RISKS (from 1A + your own): 1.____ 2.____ 3.____
WHAT WOULD CHANGE MY MIND: _______________________________________
VERDICT (one sentence): __________________________________________

Acme filled in (FY2026): revenue $3.2M (+39%), gross margin 78%, operating margin 17%, CFO $526k, FCF $376k (12%), SBC 1.3% of revenue, net cash $1.48M, DSO 34 days (year-end 41 and rising), ROE 46% driven by margin and turnover. Verdict: profitable, customer-funded, cash-generative; watch receivables and whether capitalized R&D keeps growing.

References

• SEC, Beginners' Guide to Financial Statements (opens in a new tab): the four statements, working capital, basic ratios
• Investor.gov, How to Read a 10-K/10-Q (opens in a new tab): the SEC's guide to annual and quarterly reports
• SEC EDGAR full-text and company search (opens in a new tab): where filings live
• SEC, Conditions for Use of Non-GAAP Financial Measures (2003) (opens in a new tab): the release adopting Regulation G and amending Item 10(e)
• SEC, Non-GAAP Financial Measures: Compliance and Disclosure Interpretations (opens in a new tab): staff guidance, last updated December 2022
• Berkshire Hathaway, 2000 Chairman's Letter (opens in a new tab): source of the EBITDA "tooth fairy" quotation
• IFRS Foundation, IAS 7 Statement of Cash Flows (opens in a new tab): IFRS classification of cash flows
• IFRS Foundation, IFRS 18 Presentation and Disclosure in Financial Statements (opens in a new tab): operating-profit subtotal and management-defined performance measures from 2027
• Enron Corp., Form 8-K, 8 November 2001 (opens in a new tab): the restatement table and SPE consolidation
• WorldCom, press release filed on Form 8-K, June 2002 (opens in a new tab): the announcement of $3.055 billion and $797 million of improper line-cost transfers
• Al Jazeera, "What $2.1bn? Wirecard says missing funds most likely do not exist" (22 June 2020) (opens in a new tab): Wirecard's €1.9 billion admission
• Aswath Damodaran, NYU Stern (opens in a new tab): FCFF/FCFE definitions and free data on margins and ratios by industry
• Richard G. Sloan, "Do stock prices fully reflect information in accruals and cash flows about future earnings?", The Accounting Review 71(3), 1996: the accruals anomaly
• Howard M. Schilit, Jeremy Perler and Yoni Engelhart, Financial Shenanigans (McGraw-Hill, 4th ed., 2018): catalog of earnings and cash-flow manipulation techniques
• Benjamin Graham and David Dodd, Security Analysis (McGraw-Hill, 1934): the original case for reading statements sceptically
• Accounting: how Acme's statements were built from journal entries