How To Choose Between Debt And Equity
One is expensive and permanent. The other is cheaper and unforgiving.
The choice between borrowing and selling equity is usually presented as a question of cost. It is better understood as a question of what happens when things go wrong.
What each demands
Debt must be repaid on a schedule regardless of how the business performs. It does not dilute ownership, interest is generally deductible, and when it is repaid the relationship ends.
Equity requires no repayment. It dilutes ownership permanently, brings governance rights, and creates an investor who needs an eventual exit.
The real test
Debt suits predictable cash flows funding assets or growth you can forecast: equipment, inventory for known demand, an acquisition of a business with established earnings.
Equity suits uncertainty — building something that may not work, where fixed repayments during the uncertain period would kill the business before it could succeed.
The question is not which is cheaper but whether your cash flows can carry a fixed obligation through a bad year.
The hidden cost of debt
Beyond interest, debt brings covenants, security over assets, and usually personal guarantees for a small business. A personal guarantee converts a business risk into a household one, and that is a decision to make deliberately with anyone else it affects.
The hidden cost of equity
Beyond dilution, equity brings an investor whose timeline may not match yours. Investors need exits. A founder content to run a profitable business indefinitely and an investor needing a sale within a fund's life have a conflict that is structural rather than personal.
The middle
There are instruments between the two: revenue-based financing repaid as a share of revenue, convertible instruments that begin as debt, and venture debt available to companies with institutional backing. Each blends the characteristics and each carries its own conditions.
The question to answer first
What does this money buy, and how confident are you about the cash it generates? Confidence points to debt. Uncertainty points to equity. Discomfort with both usually means the amount is wrong rather than the instrument.