Cash Flow And Valuation · Beginner · 7 minute read · No ads
Operating Cash Flow
Also called OCF, cash flow from operating activities, net cash provided by operating activities
Operating cash flow (OCF) is cash generated or used by a company's main business activities. Under the indirect method, net income is adjusted for noncash items and operating working capital. If $80 million of net income receives a net $40 million adjustment, OCF is $120 million.
Key takeaways
- OCF measures cash generated or used by core operations during a period.
- Under the indirect method, start with net income, add back noncash expenses and adjust operating working capital.
- Strong OCF can support reinvestment, debt repayment and shareholder returns, but it is not the same as free cash flow.
- Compare several periods because receivables, inventory and payables can shift cash between reporting dates.
What is operating cash flow?
Operating cash flow, or OCF, is the cash a business generates or uses through its core operations during a period. Under the indirect method, the calculation starts with net income, adds back noncash expenses and adjusts for changes in operating assets and liabilities such as receivables, inventory and payables.
OCF helps investors test whether reported profit is turning into cash. It should be read with the income statement, balance sheet and notes because timing in working capital can make one period look unusually strong or weak.
How Operating Cash Flow works
| Step | What happens |
|---|---|
| 01 · Find net income | Start with the same period shown in the operating section. |
| 02 · Adjust noncash items | Add back or remove depreciation, amortization and other noncash amounts. |
| 03 · Adjust working capital | Apply changes in operating receivables, inventory, payables and similar balances. |
| 04 · Check the trend | Compare multiple periods and read the notes for unusual timing or classification. |
The formula
Operating cash flow = Net income + Noncash expenses ± Changes in operating working capital
Net income = accounting profit for the period Noncash expenses = items such as depreciation or amortization that reduce profit without using current period cash Operating working capital = operating receivables, inventory, payables and similar balances OCF = net cash provided by or used in operating activities
A worked operating cash flow example
Suppose a company reports $80 million of net income. It adds back $30 million of depreciation and other noncash charges. Inventory falls by $6 million, accounts payable rises by $8 million, and accounts receivable rises by $4 million.
The calculation is $80 million + $30 million + $6 million + $8 million − $4 million = $120 million of operating cash flow. The receivables increase is subtracted because some reported sales have not yet been collected in cash.
Why it matters
OCF tests whether normal operations are producing cash. A business can report profit while cash is tied up in receivables or inventory, and a loss making business can temporarily report positive OCF after releasing working capital.
Use the Stock Screener to find companies for further research, then inspect their cash flow statements. The DCF Valuation Tool can help you explore how sustainable cash assumptions influence an estimated value.
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How the indirect method works
Most large US companies present operating cash flow by starting with net income. They add back noncash expenses, remove gains or losses that belong elsewhere and adjust changes in operating assets and liabilities. The reconciliation explains why accounting profit differs from operating cash.
Receivables, inventory and payables
An increase in accounts receivable usually reduces operating cash because revenue has been recorded before collection. An increase in inventory usually uses cash. An increase in accounts payable can preserve cash temporarily because suppliers have not yet been paid. The opposite movements reverse those effects.
OCF quality and recurring cash generation
A strong number is more useful when it comes from customer collections and repeatable operations. Selling receivables, stretching supplier payments or collecting a large past due balance can lift one period without improving the underlying business. Read management's discussion and compare multiple periods.
Operating cash flow versus free cash flow
Operating cash flow is reported in the operating section of the cash flow statement. A common simple free cash flow measure subtracts capital expenditures from OCF. The two answer different questions, and free cash flow definitions can vary between companies.
Why classification matters
Operating, investing and financing classifications explain the source of a cash movement. A classification change can alter OCF without changing total cash. Use the notes and accounting policy disclosures when an unusual item is material.
Comparison
| Measure | Starts with | What it shows |
|---|---|---|
| Net income | Accrual based revenue and expenses | Accounting profit for the period |
| Operating cash flow | Net income reconciled to operating cash | Cash generated or used by core operations |
| Free cash flow | OCF less the stated capital spending | Cash remaining after the selected capital investment |
Check yourself
Net income is $80 million and net noncash and working capital adjustments add $40 million. What is operating cash flow?
Add the $40 million net adjustment to $80 million of net income to get $120 million of operating cash flow.
Show the answer
$120 million
Things people get wrong
Mistake 01 Treating OCF as profit
OCF and net income measure different things and should be read together.
Mistake 02 Assuming one strong year is sustainable
Working capital timing can lift cash temporarily.
Mistake 03 Ignoring classification and company policy
Similar transactions can require judgment, so read the notes before comparing companies.
Questions people ask about Operating Cash Flow
What does operating cash flow tell investors?
It shows how much cash a company's operating activities provided or used during the period.
What is the operating cash flow formula?
Under the indirect method, start with net income, adjust noncash items and then adjust changes in operating working capital.
Is operating cash flow the same as revenue?
No. Revenue measures sales under accrual accounting, while OCF measures operating cash receipts and payments.
Can operating cash flow be negative?
Yes. A business may use more cash in operations than it generates, especially during weak trading or rapid growth.
Is OCF the same as free cash flow?
No. A common simple free cash flow measure subtracts capital expenditures from OCF.
Why can OCF be higher than net income?
Noncash expenses and favorable working capital movements can make operating cash exceed reported profit.
Where is OCF reported?
It appears in the operating activities section of the statement of cash flows.
The bottom line
Operating cash flow shows whether core operations generated or consumed cash during the period. Use the reconciliation to understand the gap between profit and cash, separate recurring performance from working capital timing and compare several periods before drawing a conclusion.
Sources
- US SEC, Beginner's Guide to Financial Statements
- US SEC, What is a statement of cash flows?
- US SEC, The Statement of Cash Flows: Improving the Quality of Cash Flow Information Provided to Investors
How we produced the figuresThe example starts with $80 million of net income, adds $30 million of noncash charges, adds $6 million from lower inventory and $8 million from higher payables, and subtracts $4 million for higher receivables. The result is $120 million.
Test cash flow assumptions
Explore how cash flow forecasts and discount rates change an estimated value. The model is educational, not a price target.
About this page. Written by Associate Professor Charles Lo, CPA, PhD and edited by Felix La Spina. Checked against reliable sources before publication. No ads and no paywall. Editorial standards · How we fact check · Corrections log · Report an error
Educational information only. Nothing on this page is personal financial, tax or legal advice. Investing involves risk, including the possible loss of principal.
