Why it matters at exit
For smaller owner-managed businesses, buyers often value the company as a multiple of SDE rather than EBITDA, because the owner’s own pay and perks are usually the largest single cost and a new owner may run the business themselves. A clean, well-documented SDE calculation lets you show the true earning power of the business and defend each add-back when a buyer’s accountant examines it. Weak records, vague personal expenses, or a figure that quietly depends on family members working unpaid will all reduce the SDE a buyer accepts, and therefore the price. Knowing your SDE early also tells you which costs are genuinely discretionary and which a buyer will treat as an unavoidable cost of trading.