Debt can increase the return reported for equity when operating returns exceed borrowing cost. The same mechanism increases losses when performance deteriorates.
Capital structure is therefore a choice about exposure, obligations and flexibility, not simply a way to make return on equity look stronger.
Understand the arithmetic
Consider a hypothetical business with €10 million of assets. Ignore tax for this illustration.
| € thousand | No debt | €6 million debt at 6% | Same debt, weaker year |
|---|---|---|---|
| Operating earnings before interest | 1,200 | 1,200 | 300 |
| Interest | 0 | 360 | 360 |
| Result for equity | 1,200 | 840 | −60 |
| Equity | 10,000 | 4,000 | 4,000 |
| Return on equity | 12% | 21% | −1.5% |
The debt cost has not fallen with operating performance.
Distinguish a higher ratio from value creation
A smaller equity base can increase return on equity without improving the underlying operation. The ratio alone does not establish that shareholders are better off after considering risk.
Debt can have benefits, including potential tax effects and financing discipline. It can also create distress costs, restrictions and reduced ability to invest.
The balance depends on the business and actual terms. There is no debt proportion that is optimal for every company.
Match leverage with cash-flow resilience
Examine demand variability, margins, fixed operating costs, working capital and investment needs.
A stable recurring cash stream can support a different obligation profile from a project business with uncertain acceptance and large cash swings.
A hypothetical equipment company with milestone receipts should test a delayed customer payment, not only a modest reduction in annual earnings. Timing can create difficulty before the annual result appears weak.
Look beyond the debt balance
Maturity, amortization, interest basis, collateral and covenants determine the practical exposure. Two companies with the same debt amount may face very different risk.
Include leases, guarantees and other relevant commitments when evaluating financial capacity. State the definitions rather than assuming every reporting measure captures the same obligations.
Check whether several facilities depend on the same lender, asset or refinancing window.
Protect strategic options
High leverage can make a promising investment difficult to fund or create pressure to sell assets at an unfavorable time.
Reserve capacity for plausible disruptions and opportunities. An apparently unused facility can have value through flexibility, but its availability and conditions need verification.
Consider how a rating change or covenant issue could affect the business’s choices even before a payment default.
Evaluate through scenarios and governance
Review interest cover, debt-service capacity, liquidity and covenant headroom using the agreement’s definitions. Ratios should support a cash analysis rather than replace it.
Test a combination of lower earnings, slower collection and higher floating costs. Define who acts and when.
Before changing the capital structure, identify which adverse condition the business could no longer absorb. That boundary is as important as the improved return shown in the base case.
Financial leverage is useful when it supports value creation without making the company dependent on a narrow path of favorable outcomes.