What it means
Debt is repaid from cash, and the cash flow coverage ratio compares the two directly. A company with operating cash flow of $10 million and debt of $40 million has a ratio of 25%: it generates a quarter of its debt every year, and could, if it spent nothing else, repay it in four years.
A company with the same debt and $4 million of cash flow has a ratio of 10% and would take ten years. The second is far more exposed to a rise in interest rates, a fall in trading, or a lender's reluctance to refinance.
The ratio's inputs are taken from the cash flow statement and the balance sheet. Operating cash flow is cash generated from operations after working capital, interest and tax, though some definitions add back interest (so the numerator is cash available to pay interest and principal) and some deduct maintenance capital expenditure (so the numerator is cash genuinely available after keeping the business running).
Total debt is all interest-bearing borrowings, and most analysts now include lease liabilities, since they are debt in substance. Where the denominator is debt service for the period rather than total debt, the ratio becomes the debt service coverage ratio.
Interpretation is by industry, trend and stress. Rating agencies publish thresholds: a ratio (operating cash flow to debt) above 30% to 40% is consistent with strong investment-grade ratings for industrial companies, 15% to 25% with the lower investment grades, below 10% with speculative grades, adjusted for the stability of the business.
Trend is at least as informative: a ratio falling year on year, because debt is rising faster than cash flow, is the pattern that precedes financial distress. Stress testing asks what the ratio would be if cash flow fell by a plausible amount, and whether the company could still meet its obligations.
The ratio's strength is that it cannot easily be improved by accounting choices. Profit-based leverage measures (debt to EBITDA) can be flattered by capitalising costs, releasing provisions or recognising revenue early; cash flow is what actually arrived.
Its weakness is volatility: operating cash flow swings with working capital, so a single year can mislead, and a rolling three-year average is often used. Management uses the ratio to set borrowing limits (a policy of keeping operating cash flow to debt above 25%, for instance), to decide between debt and equity funding for an investment, and to demonstrate capacity to lenders.
Lenders use it as a covenant, typically a minimum ratio tested annually, and as a trigger for pricing changes.
In practice
Real-world examples.
Example
A utility with operating cash flow of $600 million and debt of $4 billion (ratio 15%) is rated investment grade because its regulated revenue is stable.
Example
A retailer's ratio falls from 28% to 12% over four years as it borrows for store openings, and its bonds are downgraded to speculative grade.
Example
A software company with debt of $50 million and operating cash flow of $60 million (ratio 120%) is described by analysts as having negligible credit risk.
Think of it
“Cash flow coverage shows how many times your cash from operations could cover debt payments.
Formula
Calculation
Cash Flow Coverage Ratio = Operating cash flow / Total debt
Variant (debt service form) = Operating cash flow (before interest, after tax) / (Interest + Principal due in the period)
Years to Repay Debt = Total debt / Operating cash flow (the inverse)
Worked example. A logistics company has operating cash flow of $14,000,000 (after interest of $3,000,000 and tax of $2,500,000), bank loans of $35,000,000, bonds of $20,000,000 and lease liabilities of $15,000,000. Principal due this year: $6,000,000 on loans and $4,000,000 on leases.
- Total debt including leases = $70,000,000
- Cash flow coverage ratio = $14,000,000 / $70,000,000 = 20%
- Years to repay = 5.0
- Excluding leases (the definition in the company's older loan agreement): $14,000,000 / $55,000,000 = 25.5%
Debt service form: cash available before interest = $14,000,000 + $3,000,000 = $17,000,000; debt service = interest $3,000,000 + principal $10,000,000 = $13,000,000; coverage = 1.31 times.
Rating context: at 20% on the all-in definition, the company sits in the lower investment-grade band for its sector; the agency's threshold for a downgrade is 15%.
Stress test: a 20% fall in operating cash flow to $11,200,000 gives a ratio of 16% (close to the threshold) and debt service coverage of ($11,200,000 + $3,000,000) / $13,000,000 = 1.09 times, barely covering.
Decision: the company is considering a $20,000,000 debt-funded acquisition adding $3,500,000 of operating cash flow. Post-acquisition: cash flow $17,500,000, debt $90,000,000, ratio 19.4%, roughly unchanged. But the acquisition debt adds $4,000,000 of annual principal and $1,200,000 of interest: debt service becomes $18,200,000 against cash before interest of $21,700,000, coverage 1.19 times, below the company's own policy floor of 1.25. The board approves the acquisition only with $8,000,000 of the price funded by a share placing, which brings the ratio to 21.3% and debt service coverage to 1.33.
Trend: three years ago the ratio was 31%. Debt has grown from $45,000,000 to $70,000,000 with the fleet expansion and the recognition of leases on the balance sheet, while cash flow has grown from $14,000,000 to $14,000,000: not at all. The finance director's report flags that the expansion has so far added debt without adding cash flow, and sets a target of returning the ratio to 25% within three years by holding capital expenditure to depreciation until the new capacity is producing.Case study
Seen in the real world.
A building materials group had a bank covenant based on net debt to EBITDA of no more than 3.0 times and had reported 2.7 times for two years. Its EBITDA included $8,000,000 of profit on property disposals and $5,000,000 of capitalised development costs, and its working capital had absorbed $12,000,000 over the period as it extended terms to win builder customers. A new lender, asked to join the syndicate, ran the cash flow coverage ratio instead: operating cash flow of $22,000,000 against debt of $130,000,000, a ratio of 17% and falling, and debt service coverage of 1.05 times once the scheduled repayments were included.
The new lender declined, and its analysis reached the existing syndicate, which added a cash flow coverage covenant (minimum 15%) and a debt service covenant (minimum 1.2) at the next renewal, with a step-up in margin. The group responded with a working capital programme that released $9,000,000, a moratorium on capitalising development costs, and a reduction in its capital programme, which lifted the ratio to 24% within two years. The finance director later described the EBITDA covenant as a measure the group had learned to manage and the cash flow covenant as one it had to earn.
Watch out
Common mistakes.
- Calculating the ratio on debt excluding leases when peers and rating agencies include them, which overstates the company's relative position.
- Reading one year. Operating cash flow swings with working capital; use a three-year average or examine the trend.
- Ignoring the debt service form. Total debt may be manageable while this year's repayments are not, if the maturity profile is front-loaded.
Questions
People also ask.
What is a good cash flow coverage ratio?
Above 30% (operating cash flow to total debt) is strong for most industrial companies; 15% to 25% is adequate for stable businesses; below 10% is weak. Debt service coverage should exceed 1.25 with margin for a downturn.
How does it differ from the interest coverage ratio?
Interest coverage tests only the ability to pay interest, usually from profit. Cash flow coverage tests the ability to repay debt, or to meet interest and principal together, from cash.
Should operating cash flow be taken before or after interest?
Either, if stated. Before interest is logical when interest is in the denominator (debt service form); after interest is usual when the denominator is total debt.
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