Estimate insolvency risk with the Altman Z-Score, combining working capital, retained earnings, EBIT, book equity and total assets/liabilities into a single distress indicator.
Données vérifiées · July 2026
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The Altman Z-Score combines five weighted financial ratios — working capital to total assets, retained earnings to total assets, EBIT to total assets, book value of equity to total liabilities, and (in some variants) sales to total assets — into a single score. Scores above roughly 2.99 indicate a 'safe' zone, between 1.81 and 2.99 a 'grey' zone of elevated risk, and below 1.81 a 'distress' zone historically associated with a high probability of insolvency within two years.
£100,000 working capital, £150,000 retained earnings, £80,000 EBIT on £600,000 total assets, £300,000 total liabilities and £250,000 book equity: a Z-Score comfortably in the safe zone.
Enter working capital (current assets minus current liabilities) and total assets.
Enter retained earnings and EBIT (earnings before interest and tax).
Enter total liabilities and the book value of equity.
Read the Z-Score and which zone (safe, grey, distress) it falls into.
Last data update
July 7, 2026
Sources and references
Altman, E.I. (1968), Financial Ratios, Discriminant Analysis and the Prediction of Corporate Bankruptcy, Journal of Finance; ACCA Advanced Financial Management (AFM), corporate failure prediction models.
The data in this calculator is updated regularly to reflect the latest official rates. When in doubt, consult the official sources listed above.
No — it flags a statistically elevated risk of insolvency within two years based on historical patterns, not a certainty. It should trigger closer review, not an automatic conclusion.
The original model was calibrated on listed manufacturers; smaller and private companies, and services businesses, are better assessed with adapted variants — treat results here as an indicative screening tool.