What is the Interest Coverage Ratio?
The Interest Coverage Ratio (ICR), also known as the Times Interest Earned (TIE) ratio, is a financial metric that measures a company's ability to pay interest on its outstanding debt. It indicates how many times a company can cover its interest payments with its earnings before interest and taxes (EBIT).
Interest coverage compares earnings with interest expense. It does not measure cash available, principal repayment capacity or a probability of default.
How to Calculate Interest Coverage Ratio
The formula for calculating the Interest Coverage Ratio is straightforward:
Interest Coverage Ratio = EBIT ÷ Interest Expense
Where:
- EBIT (Earnings Before Interest and Taxes): Net income plus interest and income taxes. It can differ from operating income because of other non-operating items. Check the reported reconciliation before using it.
- Interest Expense: The total amount of interest expense recognized during the period, rather than cash payments alone. This can include interest on bonds, loans, credit lines, and other debt instruments.
Interpreting the Interest Coverage Ratio
- Above 1x: EBIT exceeds interest expense.
- At 1x: EBIT equals interest expense.
- Below 1x: EBIT is less than interest expense; negative EBIT gives a negative ratio.
Choosing a Comparison
Compare periods and peers using the same earnings and expense definitions. Industry mix, business cycles and exceptional items affect comparability. Read the agreement for a debt covenant: an adjusted EBITDA or net-interest definition may differ from this EBIT calculation. No fixed industry benchmark is assumed here.
Limitations of the Interest Coverage Ratio
While useful, the Interest Coverage Ratio has some limitations:
- Doesn't account for principal payments: The ratio only measures interest coverage, not the ability to repay principal.
- EBIT vs. cash flow: EBIT is an accrual measure and may not reflect actual cash available for interest payments.
- Seasonal variations: Companies with seasonal earnings may show misleading quarterly ratios.
- One-time items: Non-recurring income or expenses can distort the ratio.
EBITDA-based interest coverage is a different earnings measure, not cash coverage. Review the cash-flow statement and debt maturity schedule separately. A debt-service ratio may include principal, but its numerator and denominator must follow the definition being evaluated.
Accounting reference: SEC non-GAAP guidance, questions 103.01–103.02, explains EBIT/EBITDA definitions and why operating income is not interchangeable with them.