How Much Debt Can a Growing Business Safely Carry?

Ratios describe capacity, they do not determine it

Leverage multiples and coverage ratios are useful shorthand and are how lenders frame their own limits. They are not a substitute for understanding what the business can actually carry.

Two businesses at identical leverage can have very different capacity, because capacity depends on the stability of the cash flow servicing the obligation and the flexibility available if that cash flow disappoints.

What determines real capacity

• The proportion of cash flow that is contracted or recurring rather than dependent on new business
• The volatility of that cash flow through a normal cycle, not just in a good year
• The working capital the business absorbs as it grows — growth consumes cash before it produces it
• Committed capital expenditure that cannot be deferred without damaging the business
• Concentration: how much of the servicing capacity rests on a small number of customers
• Headroom under existing covenants before any new facility is added

Growth changes the calculation

A growing business is often a net consumer of cash even when it is profitable, because receivables and inventory expand ahead of collections. Debt sized against a profitable forecast can become difficult to service precisely because the growth arrives.

The safer approach is to size the obligation against the cash the business generates while it is growing, not the profit it reports.

The test worth applying

Model a period of materially lower revenue sustained for several quarters, with no new facilities available. If the structure survives that, the leverage is defensible. If it survives only on the plan, the business is carrying more risk than the ratio suggests.