Cash Coverage Ratio

The cash coverage ratio measures a firm’s ability to service debt using cash earnings. It starts with EBIT (operating income), adds back non-cash expenses like depreciation and amortization, then divides by interest expense. The result reveals how many times over the company can cover its interest bills with cash generated from operations, abstracting away accounting write-downs that don’t drain the till.

Why non-cash charges distort interest coverage

The standard interest-coverage ratio divides EBIT by interest expense. EBIT, however, is an accrual-accounting figure that subtracts depreciation and amortization—real economic costs over an asset’s life, but not cash outlays in the current period. A highly capital-intensive firm with steep depreciation can show low interest coverage on an earnings basis yet possess ample cash to pay interest.

Consider a mature utility with $1 billion in annual EBIT and $200 million in annual depreciation. Its reported EBIT is $800 million. If interest expense is $150 million, the interest-coverage ratio is 5.3x—comfortable. But the true cash available for interest is $1 billion (add back the depreciation), yielding a cash coverage ratio of 6.7x. The gap highlights how depreciation, while economically real over decades, can temporarily obscure short-term debt-service capacity.

Similarly, a firm that has just finished a major acquisition carries hefty amortization from goodwill write-downs. These reduce EBIT but involve no current cash outlay. The cash coverage ratio strips them away, revealing the underlying cash-generation power.

Building the numerator: EBIT plus non-cash add-backs

Start with EBIT from the income statement—operating income before interest and taxes. Next, retrieve the cash flow statement or notes to find depreciation and amortization expenses. Add these back to EBIT.

Many analysts use EBITDA directly (earnings before interest, taxes, depreciation, and amortization), which does this work in one step. EBITDA = EBIT + Depreciation + Amortization. So the cash coverage ratio simplifies to EBITDA ÷ Interest Expense.

A practical example: Company C reports EBIT of $50 million, depreciation of $15 million, and amortization of $5 million. Interest expense is $12 million. Cash coverage ratio = ($50 + $15 + $5) ÷ $12 = $70 ÷ $12 = 5.8x. The firm can cover its annual interest obligation nearly six times over with cash earnings.

Note that this approach assumes depreciation and amortization are truly non-cash and do not reflect capital replacement needs. For some firms, this assumption breaks down—a company with heavily used equipment may need continuous reinvestment, and depreciation may understate the cash required to maintain operations. In such cases, analysts deduct estimated capital expenditures from the numerator to get a truer picture of free cash available for interest. But the basic cash coverage ratio stops at EBITDA.

Why this matters more for capital-heavy industries

Manufacturing, utilities, telecommunications, and transportation firms carry large fixed-asset bases and correspondingly large depreciation charges. For these sectors, the cash coverage ratio often exceeds the traditional interest-coverage ratio by 1.5x to 3.0x, making cash coverage a truer solvency measure.

A telco with steep amortization from spectrum licenses and infrastructure can appear less solvent on an interest-coverage basis than it truly is. The cash it generates is real; the amortization is an accounting allocation of past investment, not a current drain. The cash coverage ratio captures this.

Conversely, asset-light service firms (consulting, software, staffing) have minimal depreciation. Their interest-coverage and cash-coverage ratios align closely. The refinement adds little value for these businesses.

Technology firms with capitalized software development and intangible assets also see material amortization. A SaaS company expensing R&D but amortizing acquired software assets will benefit from a cash coverage view that normalizes away some of the amortization drag.

Comparing across debt structures

Firms with different debt maturities and refinancing patterns benefit from cash-coverage scrutiny. A company with $100 million in interest expense but $500 million in debt principal due in two years faces refinancing risk; the cash coverage ratio captures the annual interest burden but not the looming bullet repayment. A more complete solvency picture includes debt service coverage—a broader metric that includes principal repayment, not just interest.

Still, for pure interest-payment capacity, cash coverage is superior to earnings-based coverage when depreciation and amortization are material. Lenders and credit rating agencies routinely compute both and weigh them together.

Limitations and when cash coverage breaks down

The ratio assumes that EBITDA is truly available for interest. But if the firm must reinvest heavily in capital to maintain operations or growth, reported EBITDA overstates cash truly free for creditors. A manufacturing plant with a 25-year asset life and $100 million annual depreciation is recovering past capital investment; if it must spend $80 million annually on new equipment to maintain output, only $20 million of the “add-back” is truly free.

Additionally, if depreciation rates are conservative (accelerating write-downs early) or aggressive (spreading them late), the ratio distorts. A firm that write-offs assets quickly will show higher depreciation add-backs; one using straight-line methods will show lower ones. These accounting choices shouldn’t influence true solvency, yet the ratio can make them matter.

Finally, the ratio ignores taxes, principal repayment, and working-capital needs. A firm with a 5.0x cash coverage ratio but heavy tax payments, looming debt maturities, and rising accounts receivable may face cash stress despite the comfortable interest-coverage picture. Credit analysts always layer this metric with others—debt-to-EBITDA, debt-to-equity, free cash flow, and covenant compliance.

See also