What each number is measuring
EBITDA is earnings before interest, taxes, depreciation, and amortization: the operating profit of the business as a standalone entity, assuming someone is paid a market wage to run it. SDE is EBITDA plus one full-time owner's compensation and personal benefits, assuming the buyer will work in the business themselves.
- SDE ≈ net profit + interest + taxes + depreciation + amortization + one owner's salary and benefits + non-recurring or personal expenses.
- EBITDA ≈ net profit + interest + taxes + depreciation + amortization, with a market-rate manager's salary left as a real cost.
- The gap between the two is roughly what it would cost to replace the owner.
