What Is Operating Cash Flow (OCF)? Formula and Examples

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Operating cash flow (OCF) is the cash a company generates from its core business operations during a period: the cash collected from selling its products or services, minus the cash paid out to produce and deliver them and to run the business. It leaves out cash from investing activities (such as buying equipment or selling a division) and financing activities (such as borrowing, repaying debt, issuing shares or paying dividends). On a cash flow statement, the same figure appears as “cash flows from operating activities,” “net cash provided by operating activities” or “cash from operations.”

What Operating Cash Flow Measures

Net income is built on accrual accounting. Revenue is recorded when it is earned, even if the customer has not paid, and expenses when they are incurred, even if the bill is still open. Large costs such as equipment are spread over many years through depreciation. This makes the income statement a better measure of economic performance, but a profitable company can still run short of cash.

OCF reverses those timing effects for the operating side of the business. It answers a narrow question: did the company’s normal activities bring in more cash than they used during the period?

Typical operating cash inflows include:

• Cash received from customers, including collections of accounts receivable from earlier credit sales
• Other operating receipts, such as refunds, insurance reimbursements or royalties tied to the business
• Interest and dividends received (under U.S. GAAP)

Typical operating cash outflows include:

• Payments to suppliers for inventory and raw materials
• Salaries, wages and benefits
• Rent, utilities, insurance and other operating expenses
• Income taxes paid
• Interest paid (under U.S. GAAP)

Classification of interest and dividends depends on the accounting framework. U.S. GAAP (ASC 230) puts interest paid, interest received and dividends received in operating activities and dividends paid in financing. IFRS (IAS 7) gives companies some choice. Interest paid, for example, can be reported in either operating or financing activities. OCF figures for a U.S. company and an IFRS reporter may therefore need adjustment before they are comparable.

How to Calculate Operating Cash Flow

There are two accepted ways to present operating cash flow. They differ in presentation, not in the final number.

Indirect method

The indirect method starts with net income and converts it to cash:

OCF = Net income + Non-cash expenses − Non-operating gains + Non-operating losses − Increase in working capital (or + Decrease in working capital)

The adjustments fall into three groups.

1. Non-cash expenses are added back. Depreciation, amortization, impairment charges and stock-based compensation reduce net income without any cash leaving the company in that period.
2. Non-operating gains and losses are removed. If a company sells a machine at a gain, the gain is in net income, but the sale proceeds belong in investing activities. The gain is therefore subtracted, and a loss is added back.
3. Changes in operating working capital are adjusted. Working capital is current assets minus current liabilities. For OCF, only the operating accounts matter: receivables, inventory, prepaid expenses, payables and accrued expenses.

The working capital adjustments follow a consistent logic:

• Accounts receivable increases: subtract it. Sales were recorded but cash was not collected.
• Inventory increases: subtract it. Cash went into goods that have not been sold and expensed yet.
• Accounts payable increases: add it. Expenses were recorded but suppliers have not been paid yet.
• Accrued expenses decrease: subtract it. The company paid obligations that had been expensed in an earlier period.

Each change reverses when the account moves the other way. A decrease in inventory adds to OCF, and a decrease in payables reduces it.

Most U.S. companies use the indirect method because it builds from the income statement and two balance sheets the accounting system already produces. It also shows exactly why cash differs from profit.

Direct method

The direct method lists the main categories of operating cash receipts and payments:

OCF = Cash received from customers + Other operating cash receipts − Cash paid to suppliers − Cash paid to employees − Other operating expenses paid − Interest paid − Income taxes paid

The Financial Accounting Standards Board, in Statement No. 95 (now codified as ASC 230), encourages the direct method because it shows the actual sources and uses of cash. Companies using it must still reconcile net income to operating cash flow, which is the indirect method in all but name. Because it also requires tracking cash by category, the direct method is used far less in practice.

Example: Both Methods Reaching the Same Answer

The following figures describe a hypothetical wholesale business for one year.

Income statement:

• Revenue: $500,000
• Cost of goods sold: $300,000
• Operating expenses (excluding depreciation): $100,000
• Depreciation: $20,000
• Interest expense: $10,000
• Income tax expense: $15,000 (assume all paid in cash during the year)
• Net income: $55,000

Balance sheet changes over the year:

• Accounts receivable increased by $25,000
• Inventory decreased by $10,000
• Accounts payable increased by $12,000
• Accrued expenses decreased by $4,000

Indirect method

1. Start with net income: $55,000
2. Add back depreciation: +$20,000
3. Subtract the increase in receivables: −$25,000
4. Add the decrease in inventory: +$10,000
5. Add the increase in payables: +$12,000
6. Subtract the decrease in accrued expenses: −$4,000

OCF = $55,000 + $20,000 − $25,000 + $10,000 + $12,000 − $4,000 = $68,000

Direct method

• Cash from customers: $500,000 revenue − $25,000 rise in receivables = $475,000
• Cash paid to suppliers: $300,000 COGS − $10,000 drawn from existing inventory = $290,000 of purchases, minus the $12,000 still owed = $278,000
• Operating expenses paid: $100,000 + $4,000 of accrued expenses settled = $104,000
• Interest paid: $10,000
• Taxes paid: $15,000

OCF = $475,000 − $278,000 − $104,000 − $10,000 − $15,000 = $68,000

The company earned $55,000 but generated $68,000 of operating cash. Depreciation and the build-up in payables pushed cash above profit, while slower customer collections held part of it back. Had inventory instead risen by $10,000, OCF would have been $20,000 lower at $48,000, with no change to net income.

Interpreting Operating Cash Flow

Positive OCF means operations funded themselves during the period. That cash can pay for equipment, repay debt, fund dividends or buybacks, or build reserves without new borrowing or share issuance. Negative OCF means the business consumed cash and relied on existing balances, asset sales or outside financing. This is not automatically a warning sign, since a young or fast-growing company may be investing heavily in inventory and receivables. But a company cannot run on negative operating cash flow indefinitely.

The more useful readings come from comparing OCF with other figures:

• OCF vs. net income. When OCF tracks or exceeds net income over several years, reported profits are being turned into cash. Some analysts use the ratio of OCF to net income as a rough check on earnings quality. Rising profits with stalling OCF call for a closer look at receivables and inventory.
• Operating cash flow ratio. OCF divided by current liabilities shows how much of the obligations due within a year the period’s operating cash could cover. A ratio above 1.0 means operations generated more cash than current liabilities on the balance sheet date.
• Trend over time. One period can be distorted by a large customer payment, a tax refund or seasonal inventory. Comparing several years, or the same fiscal quarter across years, gives a clearer picture.

OCF vs. Related Measures

Free cash flow. Free cash flow is usually defined as OCF minus capital expenditures. OCF ignores the cash spent maintaining and expanding long-term assets, so a capital-intensive business can show strong OCF and little free cash flow.

EBITDA. EBITDA adds depreciation and amortization back to operating earnings, as OCF does. But it ignores working capital changes, taxes and interest. It is a profit measure with some non-cash items removed, not a measure of cash generated.

Operating income. Operating income (EBIT) is an accrual profit figure before interest and taxes. It includes depreciation and excludes working capital movements.

The corporate finance OCF formula. Capital budgeting and valuation textbooks often define operating cash flow as EBIT + Depreciation − Taxes. This version leaves interest out because financing costs are reflected in the discount rate, and it handles working capital changes as a separate line. For the hypothetical company above, EBIT is $80,000 ($500,000 − $300,000 − $100,000 − $20,000), so this OCF is $80,000 + $20,000 − $15,000 = $85,000, against reported OCF of $68,000. The $17,000 gap is the $10,000 of interest plus the $7,000 net working capital drain. Neither number is wrong, so check which definition a source uses before comparing figures.

Limitations of Operating Cash Flow

• Timing can be managed. A company can lift OCF in a period by delaying supplier payments, selling receivables to a factor, cutting inventory or pulling forward collections. These moves change when cash arrives, not how much the business earns, and they can reverse the next period.
• It ignores reinvestment. OCF says nothing about the capital spending needed to keep operations running, which is why free cash flow is the more common basis for valuation.
• Classification varies. The IFRS options for interest and dividends, plus judgment calls on items such as certain leases, mean companies with identical economics can report different OCF.
• Add-backs are not free. Stock-based compensation is added back as a non-cash expense, yet it dilutes shareholders, so large share-based pay can make OCF overstate the cost of running the business.

FAQs

The Bottom Line

Investors and analysts checking whether reported profits turn into cash can compare OCF with net income and current liabilities over several years. A single period can mislead, since payment timing and inventory moves shift cash without changing earnings. Free cash flow covers the capital spending OCF leaves out, and textbook formulas such as EBIT plus depreciation minus taxes give different figures, so confirm the definition before comparing numbers.