Part 3 · Ratios · Chapter 47
Leverage and solvency
Debt-to-equity, net debt to EBITDA, interest coverage - the level of leverage never tells you the risk; the stability of the cash flows behind it, the wall of maturities ahead of it, and the guarantees hidden beside it do.
13 min
Prerequisites not yet complete
This module builds on Chapter 4: The balance sheet, line by line, Chapter 45: DuPont decomposition. You can read on, but the sequence is load-bearing.
Same leverage, opposite danger
Two companies carry exactly the same leverage: net debt of four times EBITDA, an identical debt-to-equity, an identical interest coverage. On any screen they are the same risk. One will refinance its debt next year without a second thought and sail on; the other will breach its covenants in the coming downturn, watch its lenders refuse to roll the debt over, and be fighting for survival - with the same ratios the first one has. The numbers were identical; the danger was not remotely so. illustrative
Debt is not dangerous in proportion to its size. It is dangerous in proportion to the mismatch between when it must be paid and when the cash to pay it arrives - which is why the level of leverage is the one ratio whose face value misleads most. Three things carry the risk, and none of them is the leverage number. The first is the stability of the cash flow servicing the debt: the same debt is safe against steady cash and lethal against cash that can halve. The second is the maturity profile: debt due in ten years is a background fact, debt due in ten months is a live threat. The third is what is hidden beside the debt - guarantees and contingent liabilities that never reach the reported leverage number but can crystallise into real obligations overnight. This module reads leverage as a question of solvency - can this business survive its bad times? - rather than as a figure on a screen, because , and the ratio that looked comfortable is no defence against it.
Size the debt, then read what it hides
The leverage ratios come in two kinds, and both are only the opening of the enquiry. Stock measures size the debt: debt-to-equity compares borrowing with the owners' capital, and net debt to EBITDA asks how many years of cash operating profit it would take to clear the debt - a rough "how deep is the hole?" Two-to-three times is ordinary; above five starts to constrain, unless the cash flows are utility-steady. Flow measures ask whether profit can service the debt as it runs: interest coverage - operating profit over interest - is the cushion, and six times means profit could fall a long way before interest bit, while coverage near two is precarious. Quote these, then go past them, because the two facts that decide survival are not ratios at all.
| Measure | Firm A (safe) | Firm B (fragile) |
|---|---|---|
| Net debt / EBITDA | 3.5 | 3.5 |
| Interest coverage | 5x | 5x |
| Cash-flow stability | steady (contracted) | cyclical |
| Debt due within 1 year | 15% | 70% |
| Guarantees vs net worth | negligible | large |
Read leverage against the cash flow, never alone. Hold the ratio next to the volatility of the cash flow servicing it. A net-debt-to-EBITDA of 4 is comfortable for contracted, regulated or otherwise steady cash flow, because that EBITDA will still be there next year to service and repay the debt. The same 4 is dangerous for a cyclical, whose EBITDA can halve in a downturn - which mechanically doubles the ratio to 8 and can trip covenants at the worst moment, when profit is weakest and lenders most nervous. The acceptable leverage level is not a universal number; it scales with how reliable the cash flow is. Steady cash carries a lot of debt; swinging cash carries very little.
Then look at the two things the ratios hide. First, the maturity profile - pull the schedule of when the debt falls due. A firm with modest leverage but most of its debt maturing within a year faces a refinancing wall: if credit tightens or the firm stumbles just as the debt comes due, lenders may refuse to roll it, and a solvent-looking business hits a liquidity crisis. Well-run balance sheets ladder their maturities so no single year overwhelms. Second, contingent liabilities and guarantees - read the notes for guarantees given on behalf of subsidiaries, associates or joint ventures, for disputed tax and legal claims, for other off-balance-sheet commitments. None appears in the debt figure, yet a guarantee for a subsidiary's borrowing becomes the parent's debt the moment the subsidiary cannot pay. Size the material ones against net worth: a company with contingent liabilities as large as its equity is far more leveraged than its balance sheet admits.
What counts as safe is a sector fact
Leverage is the ratio most tightly bound to cash-flow stability, and cash-flow stability is a property of the sector. So the same debt level is prudent in one business and reckless in another - which is exactly what a single leverage scale, applied across a screen, gets wrong.
High leverage is normal and safe, because tariff-fixed cash flows are steady and predictable. A low-debt utility is arguably under-using a cheap, reliable funding base. Judge it on interest coverage and maturity laddering, not the debt level.
Low leverage is essential, because EBITDA can halve in a downturn and double the ratio overnight. The right question is what net-debt-to-EBITDA looks like on trough earnings, not on this year's peak.
Project debt and guarantees dominate, much of it in special-purpose vehicles. Reported parent leverage can look modest while the group carries heavy project debt and cross-guarantees - read the consolidated picture and the contingent liabilities.
Debt-to-equity is the wrong tool entirely - borrowing is raw material, and 10x-plus is the model. Solvency is capital adequacy: capital against risk-weighted assets, the regulator's ratio, not the manufacturer's.
A regulated utility can safely run leverage that would sink a cyclical, purely because its cash flow does not move - so reading the two on the same debt-to-EBITDA scale ranks them wrongly. A developer's true leverage hides in project vehicles and guarantees, so the parent's headline debt understates the group. And for a bank, the manufacturing ratio does not apply at all; a debt-to-equity of 10-plus is the business model, and solvency is capital adequacy, a different instrument. In every case the discipline is the one this part keeps teaching: before you read the leverage level, ask what cash flow sits behind it and what the sector's normal is - and for a lender, reach for the right ratio in the first place. A debt level ripped out of its cash-flow context is not a risk measure; it is a number waiting to mislead.
Read it live
A composite mid-cap capital-goods maker shows net debt to EBITDA of 2.2 and interest coverage of 5x - modest, healthy leverage by any screen. The balance sheet looks safe, and the instinct is to move on. Read the three hidden things before you do. illustrative
Start with cash-flow stability. This is a project-driven business whose EBITDA swings with the order cycle; the 2.2 is struck on a good year, and in the last downturn EBITDA fell 45%. Recompute on that trough and net debt to EBITDA jumps to roughly 4.0 - survivable, but no longer "modest." The honest number is the through-cycle one. Now the maturity profile: dig into the borrowing note and 65% of the debt matures within fifteen months, most of it short-term working-capital lines that must be rolled. In a good market that is routine; if the order cycle turns just as those lines come due, the firm is relying on nervous lenders to refinance a wall of debt into weakness. And the contingent liabilities: the notes disclose guarantees given for a jointly-controlled entity's borrowing equal to about 40% of the parent's net worth, plus a disputed tax claim. Neither is in the 2.2; both are real exposures that could crystallise.
Put the three together and the "safe, 2.2x" business is materially riskier than the headline - its true leverage is closer to 4x at the trough, it faces a refinancing wall within fifteen months, and it carries off-balance-sheet guarantees worth two-fifths of its equity. None of that changes the reported ratio, and all of it changes the risk.
What the ratio cannot tell you
A leverage ratio cannot tell you whether the lenders will still be there when the debt falls due. Solvency in a crisis is as much about access to refinancing as about the debt-to-EBITDA level, and access depends on the credit market, the lenders' own health, and confidence in the borrower - none of which is in the ratio. A firm can be modestly leveraged on paper and still fail because it could not roll a maturing loan in a frozen market. The ratio measures the debt; it cannot measure the willingness of others to keep funding it. Nor can it size the odds on the contingent liabilities: the notes list the maximum exposure, but whether a guarantee is called or a tax dispute lost is a probability the accounts do not price. Reading contingent liabilities against net worth sizes the potential damage; it cannot tell you the likelihood, which is a judgement about the underlying disputes and the health of the guaranteed entities.
And the ratios say nothing about covenant terms, which often bite before the headline numbers look dangerous. A loan may carry a covenant that trips at a net-debt-to-EBITDA of 3.5, so a firm drifting from 3.0 to 3.6 in a soft year can breach and hand its lenders control long before its leverage looks alarming to an outsider. The thresholds live in the loan agreements, not the ratios, and a business can be technically in default at a leverage level a screen would call perfectly comfortable. What the numbers cannot show, the fine print decides.
In the concall
When leverage looks fine on the surface, a sharp analyst probes the three hidden things at once: "Net debt to EBITDA is 2.2, but what does that look like on trough EBITDA, what share of the debt matures within a year, and what are the guarantees you've given for the JV?" The question tests solvency, not leverage - and the answer either walks toward the stress or away from it.
A candid management walks toward it:
"Sensible to stress it. On mid-cycle EBITDA we'd be around 3x, and at a genuine trough closer to 4x, which is why we're targeting a reduction before the next down-leg. On maturities, we've termed out most of it - only about 20% is due within a year, and it's laddered. The JV guarantee is real, about 30% of net worth; the JV is self-funding now, but we disclose it and monitor it. We run the balance sheet for the trough, not the peak."
That stress-tests the leverage on trough earnings, shows the maturities are laddered, and puts a number on the guarantee rather than hiding it. The evasive version does the opposite - it quotes the peak-EBITDA ratio as if it were through-cycle and waves the rest away:
"Our balance sheet is very comfortable - net debt to EBITDA is just 2.2 and interest coverage is healthy. We have a strong relationship with our lenders and access to ample liquidity, so we're not concerned about our debt at all."
"Access to ample liquidity" is precisely what evaporates in the downturn that tests it. The follow-up that settles it is the one nobody asks: "Give us net debt to EBITDA on trough earnings, the exact share of debt maturing in the next twelve months, and total guarantees against net worth." If the room lets "comfortable at 2.2x" stand without those three numbers, either the trough leverage is uncomfortable or a refinancing wall is looming, and the peak ratio is being used to change the subject.
Decide
Test your reading, not your memory - short decisions under incomplete information. The answer only shows after you commit.
All figures are illustrative - constructed to demonstrate a judgement, not reported as fact.
Carry forward
- Leverage ratios come in two kinds - stock measures (debt-to-equity, net debt to EBITDA) that size the debt, and flow measures (interest coverage) that test whether profit can service it - but the level alone never tells you the risk.
- Solvency is decided by three things the ratios do not carry: the stability of the cash flow servicing the debt (steady cash carries far more than cyclical cash), the maturity profile (a refinancing wall can sink a lightly-levered firm), and the contingent liabilities and guarantees that are real debt until the moment they crystallise.
- The safe leverage level is a sector property: high and normal for a regulated utility, low and essential for a cyclical, hidden in project vehicles for a developer, and measured as capital adequacy rather than debt-to-equity for a lender.
Enables: 050 When each ratio stops making sense, 051 How ratios get gamed
Read leverage on trough cash flow, pull the maturity schedule, and size the guarantees against net worth - the debt level is the start of the solvency question, never the answer.
The thinkers this chapter leans on.