Interest Expense

Category

Income Statement

Units

Currency

US-GAAP elements

InterestExpenseInterestExpenseDebtInterestCostsCapitalized

Reference

Regulation S-X Rule 5-03.8 (Interest and amortization of debt discount and expense); ASC 835

Source

Reported in SEC EDGAR filings (US-GAAP XBRL taxonomy)

Interest expense is the cost a company recognizes during a period for the money it has borrowed. It covers interest on bonds, loans, credit lines, and similar obligations, along with the gradual amortization of any debt discount and issuance costs, and the interest component of finance lease payments.

It is recognized as the interest accrues, not when the cash is paid. A company can therefore report interest expense in a quarter with no interest payment, and vice versa.

Regulation S-X Rule 5-03.8 gives interest and the amortization of debt discount and expense its own caption, listed among non-operating items. Companies tag the total in XBRL as InterestExpense, with InterestExpenseDebt used for the portion tied to debt specifically. ASC 835 covers the underlying rules, including the effective interest method, which spreads discounts, premiums, and issuance costs over the life of the debt so the reported expense reflects the true cost of borrowing.

Not all interest reaches the income statement. Interest incurred while a company constructs a long-lived asset is capitalized into the asset's cost, tagged InterestCostsCapitalized, and is later charged through depreciation. Companies building large projects can report interest expense well below the interest they actually incur. Presentation also varies: some companies net interest income against interest expense on the face of the statement, and banks and other lenders treat interest expense on deposits and borrowings as a core operating cost rather than a financing item.

Interest expense is the denominator of the interest coverage ratio, which GeminIQ calculates as EBIT divided by interest expense, both over the trailing twelve months, using the as-filed value. Because interest is generally tax-deductible, analysts often compute an after-tax interest figure when building unlevered measures such as NOPAT. A rising interest expense with flat debt usually signals higher borrowing rates or refinancing at less favorable terms.