Altman Z-Score Calculator
Free Altman Z-Score Calculator predict bankruptcy risk in seconds using the original 5-ratio formula. Works for public manufacturing, private company, and non-manufacturing firms.
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How It Works
Enter seven financial metrics from a company's balance sheet and income statement: Working Capital, Total Assets, Retained Earnings, EBIT, Market Value of Equity, Book Value of Total Liabilities, and Total Sales. Select the appropriate model based on company type: public manufacturing, private company, or non manufacturing service firms. Pull figures from the most recent annual 10 K or audited financial statements. Working capital equals current assets minus current liabilities. Market value of equity for public firms is shares outstanding times share price on the measurement date. Use the same fiscal year end for all inputs so ratios align on one reporting period. Private company screens use book equity in place of market cap in the X4 ratio with different coefficient weights.
The calculator computes five financial ratios and applies Altman's weighted coefficients to produce a Z Score. Each ratio's contribution to the final score is displayed in the breakdown table. The score is classified into three zones: Safe Zone (Z above 3.0), Grey Zone (1.8 to 3.0), and Distress Zone (below 1.8). Review which ratios drag the score down to identify specific financial weaknesses. Compare year over year Z Scores from consecutive 10 K filings to detect deteriorating trends early. A firm sliding from safe to grey over two years warrants deeper credit review even if it still avoids distress classification today. Bond holders and equity deep value investors use the breakdown to see whether liquidity, leverage, or profitability drives weakness.
After computing the Z Score review which ratios contribute most to the final score in the breakdown table. A low X1 signals liquidity constraints while weak X4 suggests market skepticism about the equity cushion. Compare results across the three models to see if classification differs by methodology. The calculator recalculates instantly as you modify any input field so you can stress test assumptions without page reloads.
Use Altman Z-Score Calculator whenever inputs change: after market moves, new contributions, or revised personal assumptions. Bookmark the page for quick reruns without installing software.
Step by step
- Open Altman Z-Score Calculator and enter your current inputs.
- Review calculated outputs and summary tables.
- Adjust assumptions and compare scenarios side by side.
Worked example
Enter seven financial metrics from a company's balance sheet and income statement: Working Capital, Total Assets, Retained Earnings, EBIT, Market Value of Equity, Book Value of Total Liabilities, and Total Sales. Enter the sample inputs described in How it works to reproduce the scenario step by step.
Adjust one input at a time to see sensitivity. Altman Z-Score Calculator updates instantly so you can stress test optimistic and conservative assumptions before acting.
When to use this calculator
Reach for Altman Z-Score Calculator when predict bankruptcy risk using the 5-ratio altman z-score model.. It suits quick what if analysis before trades, allocation changes, or plan updates.
Pair with related tools when the decision spans taxes, liquidity, or multi year projections beyond what one formula captures.
Common mistakes
Copying outputs without checking input units or stale market prices is a frequent error with Altman Z-Score Calculator. Confirm tickers, percentages, and dates before acting.
Running a single baseline scenario ignores tail risks. Stress test with conservative inputs and compare against related tools listed below when the decision is material.
The Formula
Z = 1.2×X1 + 1.4×X2 + 3.3×X3 + 0.6×X4 + 1.0×X5
X1 = Working Capital / Total Assets
X2 = Retained Earnings / Total Assets
X3 = EBIT / Total Assets
X4 = Market Cap / Total Liabilities
X5 = Sales / Total Assets
Z > 3.0: Safe zone
1.8 < Z < 3.0: Grey zone
Z < 1.8: Distress zone
Original Altman Z Score (1968) for public manufacturing companies. For private companies, use the Z prime Score model with different coefficients. Not applicable to financial firms or utilities. Distress zone does not guarantee bankruptcy; grey zone warrants deeper due diligence. Recompute after restatements or material acquisitions. Compare models when sector classification is ambiguous between manufacturing and services.
Limitations and assumptions
Original Altman Z Score (1968) for public manufacturing companies. For private companies, use the Z prime Score model with different coefficients. Not applicable to financial firms or utilities. Distress zone does not guarantee bankruptcy; grey zone warrants deeper due diligence. Recompute after restatements or material acquisitions. Compare models when sector classification is ambiguous between manufacturing and services. Altman Z-Score Calculator does not replace personalized advice. Fees, slippage, account specific rules, and behavioral constraints may change real world outcomes.
Key terms
- What is the Altman Z-Score
- The Altman Z Score is a formula that predicts the probability of a company going bankrupt within two years.
- What is the difference between the three models
- The original 1968 formula was designed for public manufacturing companies.
- Model assumption
- Working Capital / Total Assets measures liquidity.
Compare alternatives
Pair with Sharpe and Sortino Ratio for portfolio risk context when holding distressed names. Use those calculators when altman z-score calculator alone does not capture the full decision.
Internal links on portfolios.tools help you chain calculators: run Altman Z-Score Calculator first, then validate edge cases with a specialized tool from the related section below.
FAQ
What is the Altman Z-Score?
The Altman Z Score is a formula that predicts the probability of a company going bankrupt within two years. It combines five financial ratios: liquidity, profitability, leverage, solvency, and activity into a single score. A score below 1.8 signals high bankruptcy risk, while above 3.0 indicates financial health. Originally developed from a sample of manufacturing firms in the 1960s. The score compresses multidimensional balance sheet stress into one number for quick screening across large watchlists. It does not replace cash flow analysis, covenant review, or management quality assessment. Distressed debt investors sometimes buy names in grey zone when they believe recovery exceeds market pricing of default risk.
What is the difference between the three models?
The original 1968 formula was designed for public manufacturing companies. For private companies, Altman replaced market value of equity with book value of equity and adjusted the coefficients. The non manufacturing model (1993) drops the Sales/Total Assets ratio and uses different weights suitable for service and non industrial firms. Choose the model that matches your company type for accurate classification. Using the public manufacturing model on a asset light software company misstates X5 and can falsely inflate or deflate the score. International filers should map local GAAP line items to the inputs this tool expects before comparing scores across borders.
What do the five ratios measure?
Working Capital / Total Assets measures liquidity. Retained Earnings / Total Assets captures cumulative profitability. EBIT / Total Assets shows operating efficiency. Market Value of Equity / Total Liabilities reflects solvency and market sentiment. Sales / Total Assets measures asset turnover. Each ratio captures a different dimension of financial health. Weakness in any single ratio can pull the score into the grey zone. X4 uses market cap for public firms and book equity for private models. Negative working capital drags X1 sharply even when cash flow remains positive for subscription businesses with deferred revenue. Low retained earnings on young growth firms penalizes X2 despite strong forward prospects.
Does the Z-Score work for all types of companies?
The Z Score works best for manufacturing and industrial firms. It is less reliable for financial companies (banks, insurance), startups with no earnings history, and service companies with few tangible assets. Use the non manufacturing model for service firms. Banks and insurers require specialized models because their balance sheet structure differs fundamentally from industrial companies. Distressed companies with negative working capital often score in grey zone despite imminent liquidity. REITs and MLPs need sector specific interpretation because leverage norms differ from industrial peers. Always read footnotes for off balance sheet obligations that ratios omit.
How far into the future can the Z-Score predict?
The score is most accurate for a 1 to 2 year horizon. Altman's original study showed 72% accuracy in predicting bankruptcy one year ahead, dropping to about 48% at two years. It should be used as one indicator among many, not a standalone decision tool. Pair with interest coverage, debt maturity profile, and cash flow analysis for credit decisions. Bond investors often combine Z Score with credit ratings for independent verification. A rising score after restructuring may lag reality if equity rally lifts X4 before operations improve. Recompute after major acquisitions because goodwill and new debt reshape all five ratios simultaneously.
How do I use this Altman Z-Score calculator on phone or tablet?
Yes. Altman Z-Score Calculator runs entirely in your mobile browser with the same formulas as desktop. Optional localStorage may remember inputs on your device when enabled in browser settings.
Where is my data stored when I use Altman Z-Score Calculator?
Nowhere on our servers. Calculations execute locally in your browser. Optional localStorage saves form fields on your device only and never transmits portfolio numbers over the network.
Should I rely on Altman Z-Score Calculator for tax or legal decisions?
No. Altman Z-Score Calculator provides educational math only. Tax law, account rules, and personal circumstances vary. Consult a qualified tax or legal professional before transactions with material consequences.
Related Tools
Pair with Sharpe and Sortino Ratio for portfolio risk context when holding distressed names. Maximum Drawdown Calc shows historical loss severity for comparison. Dividend Discount Model helps value survivors after screening out distress zone companies. Bond YTM Calculator adds fixed income credit context alongside equity distress screening on portfolios.tools.