What interest coverage means

Debt-to-Equity and the Equity Multiplier both look at how much debt and leverage sit on the balance sheet. Interest Coverage asks a more immediate question: whatever the debt load, can the company comfortably afford the interest payments on it out of its regular operating profit?

The formula

Interest Coverage = EBIT / Interest

We use EBIT — operating profit after depreciation, but before interest and tax — because that’s the profit actually available to pay lenders, before anything is set aside for the government or for shareholders.

Worked example: Desi Bites Foods, FY25

  ₹ Lakh
EBIT 326
Interest 47
Interest Coverage 6.9x

Desi Bites earns enough operating profit to cover its interest bill about 6.9 times over — comfortable, though not enormous headroom for a smaller manufacturer still carrying a meaningful term loan.

Worked example: Britannia Industries, FY25

From Britannia Industries’ audited consolidated FY25 results (year ended 31 March 2025, filed 8 May 2025). For illustration only.

  ₹ Crore
EBIT 2873.81
Interest 138.8
Interest Coverage 20.7x

At 20.7x, Britannia’s operating profit covers its interest bill roughly three times as comfortably as Desi Bites’ does — consistent with everything the last two posts already showed: a company carrying genuinely light debt.

Common mistakes

  • Using EBITDA instead of EBIT in the numerator. EBITDA hasn’t yet accounted for the plant ageing — using it inflates the ratio and can overstate how comfortably a company can actually service its debt.
  • Reading one year’s coverage without checking the trend. A single strong year’s EBIT can flatter interest coverage even if the underlying business is inconsistent — several years tell a more honest story than one.
  • Ignoring the type of debt behind the interest figure. A company paying a low fixed rate on long-tenure debt has a very different risk profile from one paying a similar rate on floating-rate, short-tenure debt that could reset higher — interest coverage doesn’t distinguish between them.
  • Treating comfortable coverage as proof the debt itself is small. Coverage measures serviceability, not size — a company can have very comfortable interest coverage and still carry a large absolute debt load. That’s what Debt-to-Equity and Net Debt/EBITDA, covered in the next post, are for.

Takeaway: interest coverage measures whether a company’s operating profit can comfortably afford its interest bill — a high number is reassuring, but it answers “can it pay?”, not “how much does it owe?”, which is a separate question the leverage ratios earlier in this module already covered.