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The cash flow based accrual ratio compares earnings with operating and investing cash flows. Work through the signed formula, document net operating assets, and reconcile the result before comparing periods.
The cash flow based accrual ratio compares net income with operating and investing cash flows, then divides the difference by average net operating assets. The definition matters as much as the percentage: a calculation that leaves out investing cash flow answers a different question. Use the ratio to direct the finance team's reconciliation of earnings and cash.
Cash flow based accrual ratio = (Net income − Operating cash flow − Investing cash flow) / Average net operating assets
Average net operating assets = (Opening net operating assets + Closing net operating assets) / 2
Net operating assets = Operating assets − Operating liabilities
This is the cash-flow-statement definition presented in CFA Society Chicago's material on accrual ratios. Show the percentage by multiplying the quotient by 100, or format the spreadsheet result as a percentage.
Operating cash flow, or CFO, and investing cash flow, or CFI, retain their reported signs. An investing outflow is negative. Subtracting it adds its magnitude to the numerator. Financing cash flow does not enter this numerator.
The SEC's guide to financial statements distinguishes operating activities from investing activities, including purchases and sales of long-term assets and investments. That distinction explains why the numerator needs the investing subtotal, rather than an unlabeled cash movement from the bank export.
This ratio is an analytical measure, rather than a required financial statement subtotal. Keep its full definition next to every report. The underlying difference between recognizing income and collecting cash is covered in accrual vs cash accounting.
Start with the income statement, the statement of cash flows, and balance sheets for the beginning and end of each period. Keep the legal entities, consolidation scope, currency, and reporting dates identical.
| Input | Export row or supporting schedule |
|---|---|
| Net income | Consolidated net income for the reporting period |
| CFO | Net cash provided by or used in operating activities |
| CFI | Net cash provided by or used in investing activities |
| Operating assets | Balance sheet assets after documented cash and investment exclusions |
| Operating liabilities | Balance sheet liabilities after documented financing exclusions |
For the example below, operating assets exclude cash, cash equivalents, and separately reported short-term investments. Operating liabilities exclude interest-bearing debt and finance-lease liabilities. Trade payables and operating accruals remain included; operating-lease assets and liabilities remain in their respective operating categories. There are no other financial investments or financing liabilities in this example.
That policy is part of the calculation. Another organization may classify additional balances differently. Resolve its mapping before comparing the ratios, rather than quietly treating unlike denominators as equivalent.
Use opening and closing balances to calculate the average. If a major acquisition makes those endpoints unrepresentative, disclose the problem and consider a consistently calculated monthly average as a separately documented convention. A zero or negative average net operating asset balance makes the usual percentage difficult to interpret; flag it for review.
An illustrative US manufacturer reports the following operating balance sheet amounts. All amounts are USD; the mapping above has already removed the excluded balances.
| Balance sheet date | Operating assets (USD) | Operating liabilities (USD) | Net operating assets (USD) |
|---|---|---|---|
| December 31, 2024 | 4,200,000 | 1,200,000 | 3,000,000 |
| December 31, 2025 | 4,600,000 | 1,200,000 | 3,400,000 |
| December 31, 2026 | 5,300,000 | 1,300,000 | 4,000,000 |
Each final column is operating assets minus operating liabilities. The period calculations follow directly:
| Step | 2025 (USD) | 2026 (USD) |
|---|---|---|
| Net income (USD) | 600,000 | 680,000 |
| CFO, signed (USD) | 750,000 | 830,000 |
| CFI, signed (USD) | −350,000 | −650,000 |
| Accrual numerator: income − CFO − CFI (USD) | 200,000 | 500,000 |
| Opening net operating assets (USD) | 3,000,000 | 3,400,000 |
| Closing net operating assets (USD) | 3,400,000 | 4,000,000 |
| Average net operating assets (USD) | 3,200,000 | 3,700,000 |
| Result | 2025 | 2026 |
|---|---|---|
| Numerator / average net operating assets | 6.25% | 13.51% |
Percentages are rounded to two decimal places. For 2026, the numerator is 680,000 − 830,000 − (−650,000) = 500,000. The denominator is (3,400,000 + 4,000,000) / 2 = 3,700,000. Dividing gives 13.51% after rounding.
In this example, all investing cash flow is capital expenditure. There are no investment purchases, acquisitions, or asset sales. In a real report, retain those separate investing rows so that management can see which activity moved the result.
Reverse the calculation before interpreting it:
Accrual numerator + CFO + CFI = Net income
| Reconciliation | 2025 (USD) | 2026 (USD) |
|---|---|---|
| Accrual numerator | 200,000 | 500,000 |
| Add CFO | 750,000 | 830,000 |
| Add signed CFI | −350,000 | −650,000 |
| Reconstructed net income | 600,000 | 680,000 |
| Reported net income | 600,000 | 680,000 |
| Difference | 0 | 0 |
Also tie CFO and CFI individually to their statement subtotals and net operating assets to the retained account mapping. The identity proves the arithmetic and sign convention. Those source ties establish that the intended inputs were used.
The ratio rises even though operating cash flow exceeds net income in both years. Capital expenditure increases the signed investing outflow, raising the accrual numerator. The controller should reconcile that investment program before attributing the increase to receivables or revenue recognition.
For comparison, the 2026 CFO-only numerator would be 680,000 − 830,000 = −150,000. Dividing that by the same average net operating assets gives −4.05%. That is a different measure; it cannot be substituted into this series under the same label. Use the cash flow to net income ratio for the separate operating cash conversion question.
CFA Institute's discussion of financial reporting quality identifies cash flow classification and differences between net income and operating cash flow as areas to examine. A ratio provides a starting point for that examination, not a verdict about reporting quality.
FP&A can track the trend; the controller owns the account mapping and statement reconciliation. Treasury should assess liquidity separately. The cash flow to total assets ratio answers another question: operating cash generated relative to the overall asset base.
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Yes, when the cash flow statement reports a net investing outflow. Keep that sign in the calculation. Subtracting a negative investing flow increases the numerator; changing it to a positive spending amount without rewriting the formula reverses the result.
No. Capital spending, acquisitions, working capital timing, and accounting estimates can all affect it. A high or rising result identifies a reconciliation to investigate. It does not establish that earnings are misstated or that the business is short of cash.
Total assets can be used for a separately labeled variant, but the resulting percentage is not directly comparable. Keep the denominator definition consistent across periods and entities, and retain the balance sheet mapping that explains every inclusion and exclusion.