Key Points
- Operating cash flow divided by current liabilities at the reporting date gives the ratio.
- A result below 1.0 signals that the entity did not generate enough cash from operations during the period to cover its current obligations.
- Unlike the current ratio, this measure strips away accrual-based balances and focuses on actual cash movement.
- Auditors apply the ratio in analytical procedures under ISA 520 and going concern evaluations under ISA 570 alongside other liquidity indicators.
What is Operating Cash Flow Ratio?
A client reports a current ratio of 2.0 and management insists liquidity is strong. But receivables are growing faster than collections and the company has not actually generated enough cash to pay its suppliers on time. We've seen this pattern on about half the engagements where the current ratio looks comfortable but something feels off. The operating cash flow ratio (OCF ratio) is the number that exposes the disconnect.
It divides cash generated from operating activities (the numerator, from the statement of cash flows under IAS 7.14 ) by total current liabilities (the denominator, from the statement of financial position under IAS 1.69 –76A). Unlike the quick ratio or current ratio, this tests actual cash generation rather than the static balance of current assets against current liabilities.
ISA 520.5 requires the auditor to design analytical procedures as risk assessment procedures. The OCF ratio is useful here because it connects the income statement (through the indirect method reconciliation) to the balance sheet in a single figure. When the ratio declines year-on-year while revenue grows, it signals working capital absorption or deteriorating cash conversion. ISA 570.10 lists an inability to pay creditors on due dates as a financial indicator of going concern doubt. A ratio persistently below 1.0 is one of the clearest flags for that condition.
Interest paid classification matters. If the entity classifies interest paid as operating ( IAS 7.33 permits this), the numerator is lower than if interest is classified as financing. Confirm the classification policy is consistent with prior periods before comparing the ratio across years.
Worked example: Dupont Ingénierie S.A.S.
Client: French engineering services company, FY2025, revenue €92M, IFRS reporter. Dupont has a revolving credit facility with a covenant requiring that operating cash flow covers current liabilities by at least 0.40 at each annual reporting date.
Step 1 — Extract operating cash flow from the statement of cash flows
Dupont reports net cash from operating activities of €11.4M under the indirect method. Profit before tax was €7.8M. Non-cash adjustments (depreciation €2.9M, amortisation of contract fulfilment costs €0.6M, increase in warranty provisions €0.4M, and a minor foreign exchange loss) totalled €3.9M. Working capital changes were negative €1.8M (receivables up €3.6M on large Q4 contracts, partially offset by a €1.8M increase in payables). Tax paid was €1.5M. Interest paid is classified as financing under Dupont's policy and excluded from operating cash flow (OCF). Prior year OCF was €13.1M.
Step 2 — Extract current liabilities from the statement of financial position
Current liabilities (CL) total €26.8M: trade payables €14.2M, current portion of bank debt €5.1M, tax liabilities €2.8M, deferred revenue on engineering contracts €3.4M, other CL €1.3M.
Step 3 — Calculate the ratio
€11.4M / €26.8M = 0.43. That clears the covenant threshold of 0.40 by a margin of 0.03. Prior year was €13.1M / €24.2M = 0.54.
Step 4 — Investigate the decline and assess going concern implications
Two factors drove the drop from 0.54 to 0.43. First, receivables grew by €3.6M because Dupont signed three large contracts in Q4 with 90-day payment terms, compressing cash collection into FY2026. Second, the current portion of bank debt increased by €0.9M as a tranche moved from non-current to current. Management's Q1 2026 cash forecast projects collection of €8.2M of the Q4 receivables by March, which would restore the ratio above 0.50 on a rolling basis.
Dupont's OCF ratio of 0.43 clears the covenant but the margin is slim. Documenting the sensitivity analysis with the Q4 receivable timing explanation gives the reviewer a defensible basis for the going concern conclusion, and the file should tell a story that connects the ratio movement to identifiable transactions rather than just restating the numbers.
Why it matters in practice
Teams calculate the ratio using cash flow from operations without verifying that the OCF figure itself is correct. If interest paid is misclassified between operating and financing activities, the numerator changes. On Dupont's engagement, reclassifying €1.1M of interest from financing to operating would reduce the numerator to €10.3M and the ratio to 0.38, below the covenant threshold. ISA 520 .A5 requires the auditor to evaluate whether the data underlying the analytical procedure is reliable before drawing conclusions from the ratio. This is the kind of ticking and bashing that nobody wants to redo at year-end, but skipping it is how files get flagged in review.
Denominators often receive less attention than numerators. A liability due in thirteen months classified as non-current reduces total CL and inflates the ratio. IAS 1.69 is specific: a liability is current when the entity expects to settle it within twelve months. Teams that accept the client's classification without testing maturity dates against loan agreements risk building the ratio on a flawed base.
Operating cash flow ratio vs. current ratio
| Dimension | Operating cash flow ratio | Current ratio |
|---|---|---|
| Numerator | Cash from operating activities ( IAS 7 flow measure) | Current assets ( IAS 1 stock measure) |
| What it tests | Whether the business generates enough cash to cover short-term obligations | Whether current assets exceed current liabilities at a point in time |
| Sensitivity to accruals | Low: based on actual cash movements, not accrual estimates | High: includes receivables and inventory that may not convert to cash quickly |
| Manipulation risk | Lower: cash movements are harder to time than classification choices on the balance sheet | Higher: reclassifying a liability from current to non-current improves the ratio without changing cash position |
| Typical use | Covenant testing in credit agreements and going concern analysis | General liquidity monitoring and bank covenant compliance |
Put simply: the current ratio answers "does the entity have enough current assets?" and the OCF ratio answers "does the entity generate enough cash?" On engagements where the current ratio looks comfortable but the OCF ratio is declining, the entity may be building up receivables or inventory without converting them to cash.
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Frequently asked questions
What is a good operating cash flow ratio?
There is no single benchmark. Capital-light service businesses often produce ratios above 0.50 because they convert revenue to cash quickly. Capital-intensive manufacturers may operate between 0.20 and 0.40 with seasonal variation. The auditor's task under ISA 520.5 is to form an expectation based on the entity's business model and investigate deviations from that expectation, not to apply a universal threshold.
How does the operating cash flow ratio differ from the current ratio?
The current ratio divides current assets by current liabilities, measuring the balance sheet at a point in time. The operating cash flow ratio replaces the numerator with actual cash generated during the period from the statement of cash flows. IAS 7.14 defines operating activities as the entity's principal revenue-producing activities. This makes the operating cash flow ratio a flow measure rather than a stock measure, and it is harder for management to manipulate through classification choices on the balance sheet.
Does the operating cash flow ratio apply to going concern assessments?
Yes. ISA 570.10 lists financial indicators that may cast doubt on going concern, including an inability to pay creditors on due dates and adverse financial ratios. An operating cash flow ratio persistently below 1.0 means the entity relies on asset sales or new borrowing to meet current obligations. The auditor evaluates this indicator alongside cash flow forecasts and available credit facilities under ISA 570.16.