Interest Coverage

Interest coverage shows how easily a company pays its interest from operating profit.

Common confusion

Below 1.5 times is a flashing light that interest is a heavy burden.

Why it matters

It is the early-warning gauge for debt trouble.

A real-world scenario

A retailer carries heavy debt from a leveraged buyout. In good years its interest coverage is 2.5x, enough for lenders. Sales slip, operating income falls by a third, and coverage drops to 1.2x — the company now spends almost all of its operating profit on interest. When coverage falls below 1, it must borrow to pay interest, and the debt spiral accelerates. The scenario shows why coverage, not the debt level, is the early warning: it measures the flow, which cracks before the stock of debt becomes obviously fatal.

Worked example

How investors use it

Check interest coverage before buying a leveraged company’s stock or bonds. A falling coverage trend is often the first sign of distress, long before the balance sheet itself looks broken.

Key takeaway

Interest coverage measures whether a company can actually pay its interest from operating profit, and it is the earliest warning of debt trouble. Below 1.5 times is a flashing light; below 1 means borrowing to pay interest, a spiral that ends badly. Because coverage responds to earnings and rates, a falling trend appears long before the balance sheet looks broken. Check it before buying any leveraged company’s stock or bonds — the flow cracks before the stock does.

Definitions reviewed by the Investing Glossary editorial team.