Analyst Dojo
Lesson 1 of 3 11–14% of the exam

Reading a cash flow statement: sources, uses and common-size

Ask where cash came from and where it went. A mature, healthy company funds itself from operations, with operating cash flow above net income and enough left after capital spending to repay capital providers. A common-size statement makes years and companies comparable.

6 min cram, 32 min full read. Based on the 2027 CFA® Program Level I curriculum, Financial Statement Analysis, Learning Module 5. Also part of the 2026 curriculum, so it applies to the November 2026 exam too.

Tailor this to you: take the self-assessment

Before this: Analyzing Statements of Cash Flows I

On the exam

  • Analyze and interpret both reported and common-size cash flow statements

Analyze and interpret reported and common-size cash flow statements. Expect a pattern of cash flow from operating activities (CFO), cash flow from investing activities (CFI) and cash flow from financing activities (CFF) signs to match to a life stage, a comparison of CFO with net income, or one common-size percentage.

How deeply to learn each part
Know the idea
Understand it in general. It frames other topics, but you will not calculate with it.
Use it
Understand it well enough to solve a question with it. Recognize when it applies.
Memorize
Learn it by heart. The exam will not give it to you.

You know this one. The full lesson is folded away. The takeaways, formulas and checkpoint below are your quick refresher, and the checkpoint is a fair test of whether you still do.

You tested strong here. The full lesson is folded away. The takeaways, formulas and checkpoint below are your quick refresher, and the checkpoint is a fair test of whether you still know it.

Cram mode: the one-screen version of this lesson. Switch to Full for the explanations, worked examples and interactives.

How do you read a cash flow statement?

Work through four steps in order: the big picture of sources of cash and uses of cash , then what drives each of operating, investing and financing cash flow. A source is any inflow that brings cash in (customers, asset sales, borrowing, share issues). A use is any outflow that sends it out (suppliers, capital spending, repayments, dividends).

The four-step read of a cash flow statement
Reading a cash flow statementwhere cash came from and where it went
  • 1. Major sources and uses Memorize is CFO positive and enough to cover capital spending?
  • 2. Drivers of CFO Memorize
    • Receivables, inventory, payables is the business using or releasing cash?
    • CFO versus net income mature company: CFO above net income
    • Variability of CFO risk, and harder to forecast
  • 3. Drivers of CFI Memorize
    • Capital spending versus depreciation growth or replacement
    • Acquisitions and asset sales why, and with what effect
    • Securities bought and sold
  • 4. Drivers of CFF Memorize
    • Borrowing versus repaying when is repayment due
    • Issuing versus buying back shares
    • Dividends paid
  1. Major sources and uses. Is CFO positive, and enough to cover capital spending? Borrowing and share issues can fill a gap for a few years, but every one of those providers expects a return that only the business itself can produce.
  2. Drivers of CFO. Changes in receivables, inventory and payables show whether operations are using or releasing cash. Then compare CFO with net income, and ask how steady CFO has been.
  3. Drivers of CFI. Is capital spending replacing worn assets or adding capacity? Are acquisitions or asset sales involved, and why? Was the spending paid for by operations or by new money from step 4?
  4. Drivers of CFF. Is the company borrowing or repaying, issuing or buying back shares, paying dividends? Is it financing a gap or returning a surplus?

Exam tip On the exam, a one-line answer to “what does this statement show?” is almost always about which section funds which.

Why should operating cash flow exceed net income?

Because net income is struck after non-cash charges such as depreciation and amortization, and the indirect method adds them back. For a mature company the operating cash flow vs net income comparison should therefore show CFO at or above net income.

When the reverse persists, with healthy profit and weak cash, ask why. The usual culprits are receivables growing faster than sales (revenue booked but not collected) and inventory building up. That pattern is an earnings-quality warning, taken further in the reporting quality module.

Look at how steady CFO is, too. A business whose operating cash swings from year to year is riskier, and any forecast of its cash flows is less reliable.

What do the signs of CFO, CFI and CFF say about a company?

They reveal its stage of life. The table below is the pattern the exam expects you to recognize, and it is worth knowing the story behind each row.

StageCFOCFICFFStory
Start-up or fast growthnegative or smalllarge negativelarge positivebuilding receivables, inventory and capacity with outside money
Maturestrongly positivemoderately negativenegativefunds capex itself, returns cash to lenders and owners
Decline or distressweakpositive (selling assets)mixedshrinking, selling assets to pay debts

These life-cycle cash flow patterns are tendencies, not laws. A growth company with negative CFO is normal for a while, but not forever. A mature company with negative CFF is not in trouble: it is repaying lenders and paying owners.

Loading the interactive

How do you tell growth capex from replacement capex?

Compare capital spending with depreciation. Depreciation is a rough measure of how fast the existing assets are wearing out, so spending close to it mostly replaces them, and spending far above it adds capacity.

In the Orchard Pumps statement below, capex of 1,500 against depreciation of 500 is three times as large, which signals expansion. The same sign pattern also shows that CFO (1,520) just covers capex, with the equipment sale, borrowing and a share issue funding the dividend and the debt repayment.

How do you build a common-size cash flow statement?

Divide each line by a base and show the result as a percentage. There are two bases, and both make it easier to see trends than raw amounts do.

Two ways to common-size a cash flow statement
Common-size cash flow statementevery line expressed as a percentage
  • Total inflows and total outflows Memorize two columns, each adds to 100%
    • Each inflow ÷ total inflows
    • Each outflow ÷ total outflows
    • Indirect method shows only net CFO, as an inflow or an outflow
  • Net revenue Memorize one base for every line
    • Each line ÷ net revenue
    • CFO ÷ revenue compare with net margin

The first base is the percentage of total inflows for inflows and of total outflows for outflows. The second is the percentage of revenue (net revenue), which puts every line on the same yardstick as the income statement. Together they make up the common-size cash flow statement .

Common-size cash flow line Use it
Share=cash flow linetotal inflows (or outflows, or net revenue)\text{Share} = \frac{\text{cash flow line}}{\text{total inflows (or outflows, or net revenue)}}
Rearrange itCommon-size line: solve for the share, the line or the total
The question asks for
Operating cash flow is 1,520.00 and total cash inflows are 2,570.00. On a common-size statement based on total inflows, operating cash flow is closest to:

1,520.00 ÷ 2,570.00 = 59.14%

Common-size percentage59.14%

On your calculator
  1. 1520÷2570=0.5914
  1. 1520ENTER2570÷0.5914

ENTER enter (on the HP, puts the number on the stack)

Because the statement uses the indirect method, there is a single net operating line. Under the direct method each operating receipt and payment would appear separately, and each would get its own percentage.

Go deeper Reading a trend in common-size data

One year of percentages describes the mix. Several years describe a story. If CFO’s share of inflows falls from 70% to 45% over three years while borrowing climbs from 10% to 35%, the company is leaning more and more on lenders to fund the same activity. If capex stays near 70% of outflows but dividends rise, the payout is eating into what is left for debt repayment. The exam usually gives one year, so treat this as the analyst’s habit behind the rule.

Go deeper Why CFO volatility matters for valuation and risk

Valuation models discount forecast cash flows. The more erratic a company’s operating cash flow has been, the wider the range of sensible forecasts and the higher the risk premium investors ask for. Two companies with the same average CFO are not equally valuable if one swings between strongly positive and negative. That is why the curriculum asks how consistent CFO is, not just how large.

Memorize this

MemorizeCash flow signs by life stage

StageCFOCFICFF
Start-up or fast growthnegative or smalllarge negativelarge positive
Maturestrongly positivemoderately negativenegative
Decline or distressweakpositive (selling assets)mixed

Memory hook Follow the money: the young company is fed by outsiders (CFF +), the mature one feeds them (CFF −), the dying one sells the furniture (CFI +).

Know it cold Mature and healthy: CFO positive, above net income, and enough to cover capex. Negative CFO is normal early, not forever.

MemorizeCommon-size bases

BaseEach line is divided by
Inflows and outflowstotal inflows (for inflows), total outflows (for outflows)
Revenuenet revenue

Memory hook Two columns that each sum to 100%, or one yardstick (revenue) for everything.

Know it cold Under the indirect method, only net CFO appears, as a share of inflows if positive or of outflows if negative.

The four-step read of a cash flow statement
Reading a cash flow statementwhere cash came from and where it went
  • 1. Major sources and uses Memorize is CFO positive and enough to cover capital spending?
  • 2. Drivers of CFO Memorize
    • Receivables, inventory, payables is the business using or releasing cash?
    • CFO versus net income mature company: CFO above net income
    • Variability of CFO risk, and harder to forecast
  • 3. Drivers of CFI Memorize
    • Capital spending versus depreciation growth or replacement
    • Acquisitions and asset sales why, and with what effect
    • Securities bought and sold
  • 4. Drivers of CFF Memorize
    • Borrowing versus repaying when is repayment due
    • Issuing versus buying back shares
    • Dividends paid
Two ways to common-size a cash flow statement
Common-size cash flow statementevery line expressed as a percentage
  • Total inflows and total outflows Memorize two columns, each adds to 100%
    • Each inflow ÷ total inflows
    • Each outflow ÷ total outflows
    • Indirect method shows only net CFO, as an inflow or an outflow
  • Net revenue Memorize one base for every line
    • Each line ÷ net revenue
    • CFO ÷ revenue compare with net margin
Common-size cash flow line Use it
Share=cash flow linetotal inflows (or outflows, or net revenue)\text{Share} = \frac{\text{cash flow line}}{\text{total inflows (or outflows, or net revenue)}}
Quick example

Operating cash flow is 330 and total cash inflows are 750. 330 ÷ 750 = 44.0% of inflows. Against net revenue of 2,200 the same line is 330 ÷ 2,200 = 15.0%.

On your calculator
  1. 330÷750= 0.44, so 44.0%
  1. 330ENTER750÷ 0.44, so 44.0%

ENTER enter (on the HP, puts the number on the stack)

How it is asked

  1. Signs to life stage

    CFO negative, CFI large negative, CFF large positive from share issues. Which stage?

    Start-up or growth: outside money funds the build-out. A mature company would show a negative CFF; a declining one a positive CFI.

  2. Profit up, cash down

    Net income rises 15% a year, CFO falls each year, receivables outgrow revenue. What does it suggest?

    Lower earnings quality: profit is being booked but not collected. The trap is reading rising profit as strong cash generation.

  3. One common-size line

    CFO of 630, total inflows of 1,800. Common-size CFO?

    630 ÷ 1,800 = 35%. The trap options are 65% (the non-operating share) and 286% (the ratio upside down).

  4. Capex against depreciation

    Capex is three times depreciation. What does it indicate?

    Expansion, not just replacement of worn assets.

Exam traps

  • Treating negative operating cash flow as always bad. It is normal for a young company that is building receivables and inventory.
  • Reading capital spending as growth without comparing it to depreciation. Spending near depreciation is replacement.
  • Assuming profit growth means cash growth. Check receivables and inventory.
  • Dividing by the wrong base: inflows are divided by total inflows and outflows by total outflows, not both by one total.

Checkpoint

3 exam-style questions. About 90 seconds each.

  1. 1A company reports negative operating cash flow, large investing outflows and large financing inflows from share issues. It is most likely:

  2. 2Over three years, a company's net income grows 15% a year while its operating cash flow falls each year, with receivables rising faster than revenue. This most likely indicates:

  3. 3On a common-size cash flow statement based on total inflows, operating cash flow of 900 with total inflows of 1,500 is shown as:

Key takeaways

  • Ask: where did cash come from, and where did it go?
  • A mature company funds itself from operations, and CFO exceeds net income.
  • CFO persistently below net income is an earnings-quality warning.
  • Common-size by inflows and outflows, or by revenue, to compare years and companies.
  • Capex well above depreciation means expansion.
Common-size cash flow line Use it
Share=cash flow linetotal inflows (or outflows, or net revenue)\text{Share} = \frac{\text{cash flow line}}{\text{total inflows (or outflows, or net revenue)}}
Quick example

Operating cash flow is 330 and total cash inflows are 750. 330 ÷ 750 = 44.0% of inflows. Against net revenue of 2,200 the same line is 330 ÷ 2,200 = 15.0%.

On your calculator
  1. 330÷750= 0.44, so 44.0%
  1. 330ENTER750÷ 0.44, so 44.0%

ENTER enter (on the HP, puts the number on the stack)

All Financial Statement Analysis formulas, every lesson

Practice exam-style questions on Analyzing Statements of Cash Flows II

Questions about this lesson?

Where this comes back

Questions candidates ask

How do you analyze a cash flow statement?

Look at the major sources and uses of cash, then the drivers of operating, investing and financing cash flows in turn. Check that operating cash flow is positive, above net income and enough to cover capital spending.

What is a common-size cash flow statement?

A statement where every line is a percentage: either each inflow over total inflows and each outflow over total outflows, or each line over net revenue. It shows trends in the mix of cash flows, not just the totals.

Why should operating cash flow exceed net income?

Net income is reduced by non-cash charges such as depreciation, which CFO adds back. For a mature company CFO above net income is therefore normal. CFO persistently below net income is a warning about earnings quality.

Spotted an error? Tell us and we will fix it.

  1. Reading a cash flow statement: sources, uses and common-size
  2. Free cash flow to the firm (FCFF) and to equity (FCFE)
  3. Cash flow performance and coverage ratios

Ask Sensei Listen instead

Questions on Reading a cash flow statement: sources, uses and common-size

Learn with Sensei, out loud The voice tutor, in early access

Sensei teaches the lesson aloud and stops when you interrupt: "wait, why is the geometric mean lower?" It answers with the lesson's own example, then quizzes you by voice. Every account can try Sensei on one module, with one voice question.

USD 149 a month founding price (regular USD 199), kept for as long as you stay subscribed. Everything in Plus included.

In active development and improving every day. Send feedback · Plans and pricing

Analyst Dojo Plus

Your free review list holds 10 items.

Plus keeps everything you save, for USD 19 a month. To make room on the free plan, remove something from your review list.

See Plus

Lessons, checkpoints and the lesson questions in practice stay free. Compare plans