Divide total debt by equity to gauge leverage — how much of the business is financed by borrowing versus owners' money.
Debt-to-equity = total liabilities ÷ shareholder equity. Higher means more leverage — greater potential returns but greater risk. Healthy levels vary widely by industry (capital-intensive sectors run higher). Negative equity is a red flag. General information only.
Debt-to-equity shows how a business is financed: a ratio of 1 means equal debt and equity, above 1 means more debt than owners' capital. Leverage can amplify returns, but it also raises risk and interest costs — lenders and investors watch it closely.
D/E = total liabilities ÷ shareholder equity
Every dollar of assets a business holds was supplied either by a lender or by an owner. Debt-to-equity is the ratio between those two sources of funding, and nothing more. It is a snapshot of the right-hand side of the balance sheet on one date — it says who financed the business, not whether the business can afford what it financed. That second question is answered by interest cover and by the cash-flow statement, and the two answers routinely disagree: a stable business with contracted revenue can carry leverage that would sink a seasonal one on an identical ratio.
Debt-to-equity = total liabilities ÷ shareholder equity
Note that “total liabilities” here means everything owed, not just borrowings — trade payables, accrued wages, deferred revenue and tax owed are all in it. That is worth knowing before you compare your figure to a published one, because many analysts quote a narrower interest-bearing debt-to-equity that excludes payables. The two numbers can differ substantially for the same company, and neither is wrong; they are answering slightly different questions.
The calculator opens with $150,000 of total liabilities and $200,000 of shareholder equity. Divide: 150,000 ÷ 200,000 = 0.75, shown as 0.75 : 1. Read it as seventy-five cents of borrowed money for every dollar the owners have in. Total assets are the two added together, 150,000 + 200,000 = $350,000, which gives the two supporting figures: the debt ratio is 150,000 ÷ 350,000 = 42.9%, and the equity share is 200,000 ÷ 350,000 = 57.1%. The calculator labels 0.75 as Moderate, which is a band, not a verdict.
Now move it, because the direction of travel is the useful part. Borrow another $100,000 and liabilities become $250,000 against the same equity: the ratio goes to 1.25 : 1 and the debt ratio to 55.6% — lenders now fund the majority of the business. Alternatively, keep the debt and lose $60,000 in a bad year. Equity absorbs the loss and falls to $140,000, so the ratio rises to 1.07 : 1 without anyone borrowing a cent. That is the property of this ratio people miss most often: it moves on losses, not just on borrowing, because equity is the residual.
The rule of thumb you will see everywhere is that under 1.0 is conservative, 1.0 to 2.0 is normal and above 2.0 is aggressive. Treat it as a starting point only, because the spread by sector is enormous: property, utilities and equipment-heavy trades are financed with debt as a matter of structure, while a service business with no assets to pledge often cannot borrow much at all and shows a low ratio for reasons that have nothing to do with prudence. Compare within your industry, and weigh your own trend more heavily than any band — a ratio climbing steadily over four quarters is a signal regardless of where it started.
Negative equity — liabilities larger than assets — is the one reading that is unambiguous, and the calculator refuses to print a ratio for it rather than showing a meaningless negative number. It means accumulated losses or distributions have consumed the owners' stake entirely, and it usually requires either fresh capital or a restructuring rather than a better ratio.
The first is treating the ratio as a solvency test. It compares two balances; it never asks whether operating cash flow covers the interest. Run interest cover alongside it. The second is reading leverage as automatically bad. Debt is usually the cheaper of the two funding sources and it does not dilute ownership, so a business with almost no debt may simply be leaving returns on the table. The third is forgetting that owner loans sit in liabilities: many small businesses look heavily leveraged until you notice the lender is the founder, which is a very different risk. The fourth is comparing a figure that includes payables against a published one that does not. The fifth is using a year-end balance sheet when the business is seasonal — pick the same date each year, or the trend is measuring the season.
One division gives you a point; the decisions need the series and the schedule. That means the ratio tracked month by month next to interest cover, and a debt schedule listing each facility with its rate, its maturity and any covenant attached — because a covenant turns this ratio from advisory into contractual, tested on a date someone has to diary. Our Small Business Bookkeeping template holds the ledger those balances come out of, so the ratio is a by-product of the books rather than a separate exercise.
It depends heavily on the industry — utilities and real estate run high, software runs low. Compare within a sector. Broadly, under 1–2 is often seen as manageable.
Less debt lowers risk, but some leverage can boost returns on equity. The goal is a level the business can service comfortably through downturns.
Related: return on equity calculator · current ratio calculator · DSCR calculator · all free calculators.
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