Debt to EBITDA: formula and interpretation

The debt to EBITDA formula divides a company's stated gross debt balance by its trailing EBITDA. It shows borrowing relative to earnings before interest, taxes, depreciation and amortization. The useful result is a multiple with a clear date, earnings period and debt definition.

The formula and the boundaries

Debt to EBITDA = Gross debt at the measurement date / EBITDA for the trailing twelve months

EBITDA = Net income + Interest + Income taxes + Depreciation + Amortization

Use the closing debt balance, rather than the year's borrowing proceeds or principal repayments. Use twelve months of earnings ending on the debt measurement date. An interim balance sheet does not justify dividing by only that quarter's EBITDA.

For the standard earnings bridge, the SEC identifies earnings as GAAP net income and says a differently calculated measure should carry a different name, such as adjusted EBITDA. Its EBITDA interpretations, Questions 103.01 and 103.02, also explain the reconciliation to net income. Use that bridge even if management accounts start their presentation at operating profit.

The short EBITDA definition provides the earnings background. The separate debt to EBITDA ratio guide covers broader interpretation; this page establishes the calculation and its proof.

Start with the borrowing and earnings exports

Ask treasury for a debt schedule with an instrument ID, borrowing entity, lender, currency, closing principal, current portion and noncurrent portion. Identify drawn revolvers separately from unused facilities. An unused commitment is available financing, rather than an outstanding principal balance.

Write down the lease policy. The example includes finance lease liabilities and excludes operating lease liabilities. This is an analytical definition, not a claim that operating leases have no obligations. FASB's Topic 842 update describes balance-sheet recognition for both finance and operating leases while retaining their classification distinction.

From management accounts, obtain net income, interest, income taxes, depreciation and amortization for the same entities and trailing period. Check whether the export stores expenses as positive values or negative ledger credits and debits before adding anything. The example below uses positive expense add-backs.

A worked example from the debt rows

Consider a hypothetical US industrial distributor at September 30, 2026. All instruments are in USD. Its policy uses outstanding borrowing principal and recorded finance lease liabilities; no operating lease liability is included.

The term loan's current portion is part of its total outstanding balance. It is not an additional loan. Keep it as a separate classification column so summing the schedule cannot count it twice.

Next reconcile the four quarters of earnings. Depreciation and amortization appear together in this export; the combined expense is added back once.

Each quarter's EBITDA is the sum of its four earnings inputs. The final calculation is:

Amounts are shown in whole dollars and multiples to two decimal places. The company has $3.44 of defined debt for each dollar of trailing EBITDA. That does not establish how quickly it can repay borrowing: EBITDA has not deducted every cash requirement.

The checks that prove the multiple

First, tie the schedule to the balance sheet. Suppose the borrowing and finance lease accounts have a combined carrying amount of $8,480,000 and the ledger separately identifies $120,000 of unamortized debt issuance costs deducted from debt. The principal-based bridge is:

This difference is explained, rather than forced to zero by changing the numerator. Other schedules can require different bridges for discounts, premiums or foreign exchange.

Second, confirm that the four quarterly EBITDA figures total the annual bridge. Here both routes give $2,500,000. Third, reverse the ratio: 3.44 × $2,500,000 = $8,600,000. Use the unrounded multiple for this check when the reported multiple is rounded.

Keep covenant adjustments visible

A loan agreement might permit adjustments that management's standard calculation excludes. Suppose this example's agreement permits one documented restructuring add-back, with every other input unchanged:

Covenant leverage becomes 8,600,000 / 2,750,000 = 3.13x, rounded. The borrowing did not fall; the denominator changed. Show both figures, preserve the agreement reference and test any add-back cap before interpreting headroom.

The EBITDA versus operating income comparison explains why a convenient operating-profit subtotal can differ from the required earnings bridge. Subtracting eligible cash instead changes the numerator and belongs in net debt to EBITDA.

Where it goes wrong

• Mismatched entities or dates. Parent debt over a subsidiary's earnings is not consolidated leverage. An acquisition needs explicit treatment of the acquired borrowing and earnings period.
• Current maturities counted twice. A full loan balance plus its current portion overstates debt. Add mutually exclusive current and noncurrent balances.
• Unlabeled add-backs. A management adjustment is not automatically permitted under a covenant, and a permitted adjustment is not ordinary EBITDA.
• Depreciation added twice. A combined depreciation and amortization line must not be added alongside its detailed components.
• A weak denominator read as precision. Near-zero EBITDA makes the multiple unstable. Zero or negative EBITDA requires a separate explanation of borrowing and cash obligations.

Calculate leverage from your own files in Covirage

Bring your borrowing schedule, trailing management accounts and documented adjustment bridge; Covirage maps the columns, and its tools compute and check the debt and earnings figures while the external AI model explains the result with every figure traced to its rows. Create a free Covirage account and bring a sample of your own data.

See Covirage for finance teams for the same work in a finance reporting context.