Altman Z Score Calculator - Five-Factor Distress Test
Use this Altman Z Score Calculator to combine working capital, profitability, leverage, and sales ratios into a company Z-score.
Altman Z Score Calculator
Results
What Is Altman Z Score Calculator?
Altman Z Score Calculator estimates a public company distress score by combining liquidity, retained earnings, operating profit, market equity, liabilities, and sales. Use it when you are screening a stock, reviewing a supplier, checking a customer before extending trade credit, or comparing a company with peers. The result is a warning signal, not a verdict, so treat it as the start of deeper review.
- • Investor screening: Compare a company's financial-statement strength before reading notes, debt schedules, and management discussion.
- • Supplier review: Check whether a critical vendor appears financially stressed before relying on long delivery schedules.
- • Credit review: Use the score beside payment history and trade-credit limits when a customer asks for longer terms.
- • Peer comparison: Measure whether one company has weaker liquidity, profitability, or leverage ratios than similar firms.
The model is most useful when you can pull consistent annual or trailing-twelve-month data. Enter all values in the same currency and period. If you use annual sales and EBIT, use balance-sheet numbers from the matching year end or a clearly documented average if your analysis policy requires it.
A high score generally reflects stronger cash resources, cumulative profits, operating returns, market equity support, and asset turnover. A low score points to pressure in one or more of those areas. Before acting, check why the score moved: falling market capitalization, operating losses, working-capital strain, or rising liabilities can each tell a different story.
If earnings look strong but cash support is unclear, compare this score with the Accrual Ratio Calculator to review whether income is backed by operating cash flow.
How Altman Z Score Calculator Works
The calculator first turns each financial statement input into a ratio, then applies the public-company Altman weights. The weighted pieces are added into one Z-score.
- WC: Working capital, calculated as current assets minus current liabilities.
- TA: Total assets from the balance sheet.
- RE: Retained earnings, including accumulated deficit when the value is negative.
- EBIT: Earnings before interest and taxes for the same period as sales.
- MVE and TL: Market value of equity and book value of total liabilities.
The five ratios are dimensionless. That means the calculator works with dollars, euros, pounds, or another currency as long as every input uses the same currency. Do not mix annual revenue with quarterly EBIT, and do not mix consolidated liabilities with segment-level assets.
The output zone uses common public-company guideposts: below 1.8 is treated as distress, 1.8 through 2.99 as grey, and above 2.99 as safer. Those labels help triage review effort; they do not replace credit analysis, audit work, or investment judgment.
Worked example
Current assets are $500,000, current liabilities are $300,000, total assets are $1,000,000, retained earnings are $200,000, EBIT is $150,000, market value of equity is $800,000, total liabilities are $400,000, and sales are $1,200,000.
Working capital is $200,000. The ratios are X1 = 0.20, X2 = 0.20, X3 = 0.15, X4 = 2.00, and X5 = 1.20. The weighted total is 1.2(0.20) + 1.4(0.20) + 3.3(0.15) + 0.6(2.00) + 0.999(1.20).
The Z-score is 3.41.
This lands above 2.99, so the calculator labels it as the safer zone. Still compare it with industry peers and review debt maturities before relying on the signal.
According to NYU Stern-hosted Altman testimony, the public-company Z-score defines X1 through X5 as working capital over total assets, retained earnings over total assets, EBIT over total assets, market value of equity over total liabilities, and sales over total assets, weighted 1.2, 1.4, 3.3, 0.6, and 1.0.
For a narrower liquidity check behind X1, the Current Ratio Calculator focuses only on current assets and current liabilities.
Key Concepts Explained
Each component pushes the score for a specific reason. Reading the pieces helps you avoid treating one total number as a complete story.
Working capital intensity
X1 compares short-term net resources with total assets. Negative working capital can be normal for some businesses, but it can also signal pressure if payables, debt, or inventory financing are stretched.
Cumulative profitability
X2 uses retained earnings over total assets. A young company may have a lower value because it has not had time to build retained earnings; a mature company with accumulated losses deserves closer review.
Operating earnings power
X3 compares EBIT with assets, so it focuses on operating profit before interest and taxes. This separates operating performance from financing structure more cleanly than net income alone.
Market equity cushion
X4 compares market value of equity with book liabilities. A falling share price can reduce this ratio quickly, which is why recent market data matters when screening public companies.
X5, sales over total assets, measures asset turnover. It is useful for manufacturers because productive assets should help generate sales, but comparisons can be weak across industries with different asset intensity.
If one component looks unusual, inspect that statement line before relying on the total. A strong sales ratio can mask weak retained earnings, while a high market capitalization can offset poor working capital for a period.
When X4 raises questions about leverage, the Debt to Equity Calculator gives a direct capital-structure comparison.
How to Use This Calculator
Use consistent source documents and a clear period. The Altman Z Score Calculator is most reliable when every input comes from the same company, reporting basis, and time frame.
- 1 Choose the period: Use annual figures or trailing-twelve-month figures consistently. Avoid mixing a recent quarter with full-year sales unless you intentionally annualize every period input.
- 2 Enter balance-sheet values: Fill in current assets, current liabilities, total assets, retained earnings, and total liabilities from the balance sheet or statement of financial position.
- 3 Enter income values: Use EBIT and sales from the income statement. If EBIT is not listed, document how you derived it from operating income or earnings before interest and taxes.
- 4 Enter market equity: For a public company, use market capitalization near the statement date or the date of your review, depending on your analysis policy.
- 5 Read the components: Review the total score, zone, working capital, and X1 through X5 ratios. Focus on the weakest component before drawing conclusions.
For a supplier review, enter the vendor's latest annual figures, then compare the zone with current ratio, interest coverage, and recent cash-flow signals. If the Z-score is low because market equity has collapsed, your next step is different from a low score caused by operating losses and negative working capital.
After entering EBIT, use the Interest Coverage Ratio Calculator to see how much room operating earnings leave for interest expense.
Benefits of Using This Calculator
The main benefit is structure. The calculator forces the review to cover liquidity, cumulative profit, operating profit, leverage, and asset turnover together.
- • Faster first screen: Convert several statement lines into one comparable number before spending time on notes, covenants, and management commentary.
- • Component visibility: See which ratio is driving the score instead of treating financial distress as a single hidden calculation.
- • Peer discussion: Use the same input structure for competitors so a credit committee or investment team can discuss differences clearly.
- • Supplier and customer triage: Flag counterparties that may need tighter payment terms, backup sourcing, or a closer review of recent filings.
- • Scenario review: Adjust EBIT, liabilities, or market value to see which business change would move the score most.
The result works best as a screening layer. Pair it with cash-flow quality, liquidity ratios, debt maturity schedules, covenant disclosures, and industry conditions before making a lending, investing, or procurement decision.
Use the same method over time. A one-year score can be noisy, but a declining trend across several periods is harder to ignore and can point you toward the statement line that changed.
For debt review, pair the Z-score with the Cash Flow to Debt Calculator to compare operating cash flow against total debt.
Factors That Affect Your Results
Several inputs can change the score without meaning the business changed in the same way. Review the context behind each value.
Industry asset intensity
Manufacturers, software companies, retailers, and utilities use assets differently, so sales over assets and EBIT over assets should be compared with close peers.
Market capitalization timing
A sharp share-price move changes X4 even if the latest balance sheet has not changed. Document the market-value date you use.
Accounting classifications
Lease liabilities, discontinued operations, restructuring charges, and unusual gains can affect assets, liabilities, EBIT, or sales comparability.
Company type
Banks, insurers, and other financial companies have balance sheets and cash-flow profiles that do not fit the original public manufacturing model well.
- • The public-company formula is not the same as the private-company Z' model or the non-manufacturing Z'' model. Use a model that matches the company type.
- • A score is not a probability of bankruptcy. It is a classification signal based on historical ratios and can produce false alarms or miss risks.
- • The calculator does not adjust for restatements, off-balance-sheet exposure, covenant waivers, refinancing access, or management plans.
For public companies, annual reports and quarterly reports are usually the cleanest source documents. Use the statement notes to understand unusual items before deciding whether to normalize EBIT, liabilities, or retained earnings.
If the score is near a cutoff, avoid overreacting to a one-point label. Small changes in market value, sales timing, or working capital can move a company between zones.
According to FINRA, balance sheets, income statements, and cash-flow statements report assets, liabilities, revenue, expenses, and cash flows that investors use to evaluate companies.
According to AltmanZScore.com, the commonly used public-company formula applies 0.999 or 1.0 to sales over total assets and warns against using the Z-score on financial companies.
If EBIT is volatile, the Times Interest Earned Ratio Calculator helps separate interest-payment capacity from the broader Z-score screen.
Frequently Asked Questions
Q: How do you calculate Altman Z score?
A: Calculate working capital, divide each component by total assets or total liabilities as required, apply the five Altman weights, and add the weighted values. The calculator does that arithmetic and shows the component ratios so you can inspect the inputs.
Q: What is a good Altman Z score?
A: A score above 2.99 is commonly treated as the safer zone for the public-company model. Scores below 1.8 fall in the distress zone, while scores between those points are grey-zone results that need closer review.
Q: What does the grey zone mean?
A: The grey zone means the score is not clearly low enough for a distress label or high enough for the safer-zone label. Review trends, industry peers, liquidity, debt maturities, and cash-flow quality before making a decision.
Q: Can I use this for a private company?
A: Use caution. The original public-company model uses market value of equity, which private companies do not report in the same way. Private-company Z' and non-manufacturing Z'' variants use different coefficients and assumptions.
Q: Which financial statements do I need?
A: You need balance-sheet values for current assets, current liabilities, total assets, retained earnings, and total liabilities. You also need EBIT and sales from the income statement plus market value of equity for the company.
Q: Is the Z-score a bankruptcy prediction?
A: It is a screening model, not a certainty. A low value can highlight financial pressure, but the model does not include refinancing options, covenants, legal events, off-balance-sheet exposure, or management actions.