What Is the Debt-to-Equity Ratio? A Plain-English Guide

The debt-to-equity ratio divides a company's total debt by its shareholders' equity, showing how much of the business is paid for with borrowed money rather than owners' money. A higher number means more borrowing relative to the money shareholders have put in or left in the business. We walk through how it's built, what different levels mean, and a case most explainers skip: when share buybacks shrink equity and push the ratio up even though debt hasn't changed.

How it works

Where both figures come from

Both numbers used in the ratio sit on the balance sheet, the statement that lists what a company owns and owes at a single point in time. Total debt is the company's borrowings, short-term and long-term combined; shareholders' equity is what would be left for owners if the company sold everything it owns and paid off everything it owes. Dividing debt by equity tells you how those two sources of funding compare.

What a ratio of 0.5, 1 or 2 means in words

As an illustration, a company with $2 billion of debt and $4 billion of shareholders' equity has a debt-to-equity ratio of 0.5, meaning it carries 50 cents of debt for every dollar of owners' money. If that same company instead had $6 billion of debt against the same $4 billion of equity, the ratio would be 1.5: $1.50 borrowed for every $1 of owners' money.

• A ratio of 0.5 means debt is half of equity, a relatively light reliance on borrowing
• A ratio of 1 means debt and equity are equal, each funding half the business
• A ratio of 2 means debt is twice equity, so borrowed money makes up the larger share of funding

Why acceptable levels differ by industry

There is no single "good" debt-to-equity ratio, because industries finance themselves differently. Utilities and banks are built to borrow more than most companies.

• Utilities often carry steady, predictable cash flow from regulated customers, so they can support more debt without added risk
• Banks hold deposits and other borrowed funds as the core of their business model, which pushes their ratios well above those of typical companies
• Asset-light businesses, such as software companies with few physical assets to borrow against, often run with much less debt relative to equity

How buybacks and accumulated losses shrink equity

Shareholders' equity does not only grow; it can shrink, and that alone can raise the debt-to-equity ratio even if debt stays flat. A share buyback, where a company spends cash to repurchase its own stock, reduces equity on the balance sheet, because retained earnings or capital that once counted as equity is paid out instead.

• A company that buys back a large amount of stock can see its equity fall sharply, mechanically raising its debt-to-equity ratio
• A company with several years of accumulated losses sees retained earnings turn negative, which also shrinks equity and inflates the ratio
• In both cases the business has not necessarily taken on more risk; the denominator of the ratio has simply gotten smaller

What to read beside it: interest costs and cash

The debt-to-equity ratio says nothing about whether a company can actually afford its debt. Interest costs, the payments owed on that debt each period, and free cash flow (FCF), the cash left after running and investing in the business, both help answer that question. A company with a high ratio but strong, steady cash flow may handle its debt more easily than a company with a lower ratio but thin or shrinking cash flow.

What it cannot tell you

The ratio does not say whether a company's debt is cheap or expensive, short-term or long-term, or coming due soon. It also cannot tell you why equity changed, whether from losses, buybacks, or a prior acquisition, without looking at the balance sheet in more detail. Comparing the ratio only makes sense between similar companies in the same industry, not across unrelated businesses.

A worked example with real figures

Using real figures, The Coca-Cola Company (KO) reported total debt of $41.62 billion against shareholders' equity of $37.37 billion as of October 2, 2026, giving a debt-to-equity ratio of 1.11, meaning its debt slightly exceeds its equity. Microsoft Corporation (MSFT) reported total debt of $133.93 billion against shareholders' equity of $470.51 billion as of September 30, 2026, a ratio of 0.28, far lower despite Microsoft's debt being more than three times larger in dollar terms.

The gap shows why the ratio needs context: Microsoft's equity base, built up over decades of profit, dwarfs its borrowing, while Coca-Cola carries a comparable debt load against a much smaller equity base. The Wall Street Journal reported that Microsoft finalized terms on a $25 billion bond sale in October 2026 to help fund its AI buildout, debt that will add to the figures in this comparison once it settles.

Neither company's ratio on its own says whether its debt is manageable; that depends on earnings and cash flow that sit outside this one number.