The interest coverage ratio tells you how many times a company’s operating profit can pay its interest bill. It is a key safety check for any company that has borrowed money. In this guide you will learn the interest coverage ratio formula, what a safe level is, how profit falls change the picture, and a worked example.
Educational content only. This is not investment advice. All company figures below are hypothetical.
Key Takeaways
- Interest coverage = EBIT ÷ Interest expense.
- Higher is safer. Below 1.5 is a warning zone.
- It works best alongside debt-to-equity.
- A falling profit can cut coverage quickly.
What Is the Interest Coverage Ratio?
Think of a person who earns ₹50,000 a month and pays ₹10,000 as loan interest. The income is 5 times the interest, so life is comfortable. If the income fell to ₹15,000, it would be tight. Interest coverage applies the same idea to a company.
Interest Coverage Ratio Formula
Interest Coverage Ratio = EBIT ÷ Interest Expense
EBIT means earnings before interest and tax. Some analysts use EBITDA, which gives a higher number. Learn the difference in our EBITDA vs EBIT guide.
Worked Example: Two Hypothetical Companies
| Item (₹ crore) | Company A | Company B |
|---|---|---|
| EBIT | 300 | 90 |
| Interest expense | 60 | 60 |
| Interest coverage | 300 ÷ 60 = 5× | 90 ÷ 60 = 1.5× |
Using EBITDA: if Company A has EBITDA of ₹400 crore, then 400 ÷ 60 = 6.67×. It looks safer, but EBITDA ignores the cost of replacing machines, so EBIT is the stricter measure.
Stress Test: What If Profit Falls?
Suppose Company A’s EBIT falls by 40% from ₹300 crore to ₹180 crore. Coverage becomes 180 ÷ 60 = 3×. Still safe. But Company B, with an EBIT of ₹90 crore, would struggle to pay interest after even a small drop. Always ask: what happens in a bad year?
What Is a Good Interest Coverage Ratio?
| Coverage | General reading |
|---|---|
| Below 1.5× | Risky; little room for a profit fall |
| 1.5× to 3× | Acceptable but watch closely |
| 3× to 5× | Comfortable |
| Above 5× | Very safe |
A ratio below 1 means operating profit cannot even cover interest, so the company must use savings or borrow more to pay lenders.
How to Use It Step by Step
- Take EBIT and interest expense (finance cost) from the profit and loss statement.
- Calculate coverage for the last 5 years.
- Check debt-to-equity and whether debt is rising.
- Stress test with a 30% to 40% profit fall.
- Compare with peers in the same industry.
Pros and Cons
| Pros | Cons |
|---|---|
| Simple view of debt safety | Ignores loan repayment (principal) |
| Easy to stress test | Profits can swing in cyclical industries |
| Useful for lenders and investors | Not suitable for banks |
FAQs
What is a good interest coverage ratio?
Above 3 is generally comfortable, and above 5 is very safe. Below 1.5 is risky.
What does a ratio below 1 mean?
Operating profit is not enough to pay interest. It is a serious warning sign.
EBIT or EBITDA: which is better?
EBIT is stricter because it counts depreciation. EBITDA gives a higher, more flattering number.
Where do I find interest expense?
It is shown as “finance cost” in the profit and loss statement on NSE or BSE.
Is low debt-to-equity enough to be safe?
Not alone. Use interest coverage and cash flow too.
Conclusion
Interest coverage shows whether profits can comfortably pay for debt. Look for 3× or more, stress test it, and read it with debt-to-equity. See the full process in our fundamental analysis of stocks guide. For daily institutional flow figures, see the FII and DII data home page.
Disclaimer: Educational only, not investment advice. Figures are hypothetical. Verify data from official filings. Sources: NSE, BSE, Zerodha Varsity.
