How to Analyze a Company's Debt

The Debt Stack — Short-Term vs Long-Term, Secured vs Unsecured

Before you calculate a single ratio, you need to understand what a company actually owes and who gets paid first. A balance sheet shows "total debt" as one number. That number hides critical structure — the maturity profile, the seniority, and the collateral behind each tranche. Two companies with identical total debt can have wildly different risk profiles depending on how that debt is structured.

Short-term vs long-term debt

Short-term debt (also called current portion of long-term debt) matures within 12 months. It must be repaid or refinanced in the near term, which makes it a liquidity risk. Long-term debt matures beyond 12 months and represents the structural leverage of the business. When analyzing a company, always check both lines on the balance sheet separately. A company with $5 billion in total debt that is 90% long-term with maturities spread over 10 years is in a very different position than one where $2 billion comes due next year.

Secured vs unsecured debt

Secured debt is backed by specific assets — real estate, equipment, inventory, or receivables. If the borrower defaults, the lender seizes the collateral. Unsecured debt has no collateral behind it — lenders rely on the company's general creditworthiness. In a bankruptcy, secured creditors get paid first from the value of their collateral. Unsecured creditors split whatever is left. This matters to equity holders because secured debt creates prior claims on the company's best assets, leaving less recovery value for everyone below in the capital structure.

The seniority ladder

The typical priority order in a liquidation is: secured bank debt first, then senior unsecured bonds, then subordinated debt, then preferred equity, and finally common equity. Common shareholders are last in line. When a company's debt stack is heavy on secured and senior claims, the equity cushion is thinner — meaning shareholders take losses sooner in a downturn. Find the full breakdown in the 10-K footnotes under "Long-term debt" or "Borrowings," where each tranche is listed with its interest rate, maturity date, and any collateral or covenants attached.

Calculate any company's debt-to-equity ratio instantly — then come back here to understand what the number actually means.

4 Key Ratios with Worked Examples

Four ratios cover 90% of what you need to evaluate a company's leverage. None of them works alone — each answers a different question, and the combination gives you the full picture. Below, every ratio is calculated using a hypothetical industrial company with $800M total debt, $200M cash, $400M equity, $300M EBITDA, $220M EBIT, and $50M in annual interest expense.

1. Debt-to-equity (D/E)

Formula: Total Debt / Total Shareholders' Equity
Example: $800M / $400M = 2.0x
D/E tells you how much of the company is financed by creditors versus owners. A 2.0x ratio means creditors have provided twice as much capital as shareholders. Higher D/E magnifies returns in good times and losses in bad times. It is the most basic leverage screen — useful for quick comparisons within an industry, but it does not tell you whether the company can actually service the debt.

2. Net debt-to-EBITDA

Formula: (Total Debt − Cash) / EBITDA
Example: ($800M − $200M) / $300M = 2.0x
This is the leverage metric credit analysts use most. It normalizes for cash on hand (which can be used to retire debt) and for operating earnings power. A company at 2.0x net debt-to-EBITDA could theoretically pay off all its net debt in two years of operating earnings. Below 2.0x is conservative. 2.0–4.0x is moderate. Above 4.0x needs a strong sector justification.

3. Interest coverage ratio

Formula: EBIT / Interest Expense
Example: $220M / $50M = 4.4x
Interest coverage measures whether the company earns enough to pay its interest bill. At 4.4x, our example company earns $4.40 for every dollar of interest it owes — comfortable. Below 3.0x warrants scrutiny. Below 1.5x means the company is barely covering interest, and below 1.0x it is not covering it at all. Track this quarterly — a declining trend is more informative than any single reading.

4. Debt-to-EBITDA (gross leverage)

Formula: Total Debt / EBITDA
Example: $800M / $300M = 2.7x
Gross leverage ignores the cash cushion — it tells you the total debt burden relative to earnings power. It matters most when you suspect the cash balance is not truly available (trapped in foreign subsidiaries, earmarked for acquisitions, or needed for working capital). Compare gross vs net leverage: if the gap is large, the company is holding significant cash while also carrying significant debt, which may signal a planning or tax strategy rather than genuine financial strength.

See how debt levels affect a company's cost of capital — the WACC calculator shows you the tradeoff between cheap debt and rising equity risk.

Reading Maturity Schedules from 10-K Footnotes

Ratios tell you how leveraged a company is today. The maturity schedule tells you when the leverage becomes a problem. A company with manageable leverage ratios can still face a crisis if a large tranche of debt matures at the wrong time — during a recession, a credit crunch, or a period of rising interest rates when refinancing costs spike.

Where to find the maturity schedule

Open the 10-K and search for "contractual obligations" or "maturities of long-term debt." You will find a table that lists the dollar amount of debt maturing in each of the next five years, plus a lump sum for everything beyond year five. Some companies also break this out in the "Liquidity and Capital Resources" section of MD&A or in the footnotes under "Long-term debt."

Spotting a maturity wall

A maturity wall is a year (or cluster of years) where a disproportionate share of total debt comes due. If $3 billion of a company's $5 billion in debt matures in 2027, that is a maturity wall. The company must refinance, repay from cash flow, or raise equity to cover it. In a favorable credit market, refinancing is routine. In a tight market — or if the company's credit has deteriorated — the maturity wall becomes a liquidity event.

What refinancing risk looks like

Compare the coupon rate on the maturing debt to current market rates. If the company borrowed at 3.5% in 2021 and market rates are now 6.5%, the refinancing will add roughly $30 million in annual interest expense per $1 billion refinanced. That hits margins directly. Calculate the impact: take the maturing principal, multiply by the rate differential, and compare the additional interest cost to EBITDA. If the new interest burden pushes interest coverage below 2.0x, the refinancing risk is material.

Matching maturities to cash generation

The simplest maturity test: compare annual free cash flow to the debt maturing in each of the next three years. If FCF comfortably covers each year's maturities, the company can self-fund repayment without touching the capital markets. If FCF covers less than half of a year's maturities, the company depends on refinancing — and refinancing is a market-dependent event, not a company-controlled event.

Calculate free cash flow for any company — then compare it to the maturity schedule to see if the company can self-fund its debt paydowns.

Red Flags Checklist — When Debt Becomes Dangerous

High leverage is not inherently dangerous. High leverage combined with deteriorating fundamentals is. The following signals tell you when a company's debt is transitioning from a manageable cost of capital to an existential risk.

Rising leverage + falling coverage

When debt-to-EBITDA is climbing while interest coverage is declining, the company is borrowing more while earning less relative to its obligations. This is the single most reliable predictor of credit distress. Track both metrics over four to eight quarters. A company that moved from 2.5x to 4.0x net debt-to-EBITDA while coverage fell from 5.0x to 2.5x in the same period is on a trajectory toward trouble, even if the absolute levels still look acceptable.

Covenant violations or waivers

Debt covenants are contractual limits — maximum leverage ratios, minimum coverage ratios, or required asset levels. When a company approaches or breaches a covenant, it must negotiate a waiver with its lenders. Search the 10-K for "covenant," "waiver," or "amendment" in the debt footnotes. A covenant waiver is not just a legal technicality — it signals that the company's performance has deteriorated enough to trigger the protective clause creditors insisted on when they lent the money.

Variable-rate exposure in a rising-rate environment

Fixed-rate debt locks in interest costs. Variable-rate debt (typically benchmarked to SOFR or a bank's prime rate) resets periodically, exposing the company to rising interest expense. Check the debt footnotes for the split between fixed and variable rate. If more than 40% of a company's debt is variable-rate and rates are rising, every rate increase flows directly to the income statement. A company paying SOFR + 300bps on $2 billion in variable debt faces $20 million in additional annual interest expense for every 100bps rate hike.

Debt-funded dividends or buybacks

When a company borrows to pay dividends or buy back stock, it is transferring value from creditors to shareholders — increasing risk while returning capital. This is sustainable when leverage is low and earnings are growing. It becomes dangerous when the company is already leveraged and using debt to maintain a dividend it cannot fund from free cash flow. Compare annual dividends plus buybacks to free cash flow. If shareholder returns exceed FCF and total debt is also growing, the capital allocation is unsustainable.

Credit rating downgrades

Rating agencies (Moody's, S&P, Fitch) assign credit ratings that reflect the probability of default. A downgrade from investment grade (BBB-/Baa3 and above) to high yield (BB+/Ba1 and below) — called a "fallen angel" — is particularly damaging because many institutional investors are prohibited from holding high-yield debt. Forced selling creates a negative feedback loop: the downgrade increases borrowing costs, which compresses earnings, which increases the probability of further downgrades.

Check any company's leverage ratios — then run through this checklist to see if the debt is manageable or a warning sign.

Sector Context — Why the Same Ratio Means Different Things

A 2.0x debt-to-equity ratio at a regulated utility is conservative. The same ratio at a software company is aggressive. Debt capacity depends on cash flow predictability, asset tangibility, and industry norms. The table below shows typical leverage ranges for major sectors — use it as a baseline, not a rule.

Why sector context matters

A utility at 4.0x net debt-to-EBITDA has predictable cash flows from regulated rate payers, tangible infrastructure assets as collateral, and a regulator that adjusts pricing to ensure the company can service its debt. A tech company at 4.0x net debt-to-EBITDA has volatile revenue that can decline 30% in a single year, minimal tangible assets, and no pricing backstop. The ratio is identical. The risk is not.

When to worry regardless of sector

Some signals transcend sector norms. Interest coverage below 1.5x is dangerous everywhere. A maturity wall that exceeds three years of free cash flow is dangerous everywhere. Covenant violations are a warning regardless of industry. Debt-funded shareholder returns when leverage is already above sector median is aggressive regardless of sector. Use the table as a starting point, but do not let "normal for the industry" lull you into ignoring a company whose fundamentals are deteriorating within that range.

Model how different capital structures affect valuation — the WACC calculator lets you see the cost-of-capital impact of adding or reducing debt.