What SDE Measures
SDE begins with reported pretax profit, then adds back one owner's compensation, interest, taxes, depreciation, amortization, and legitimate nonrecurring or personal expenses. The objective is to estimate the annual economic benefit available to one full-time owner-operator.
SDE is most useful for smaller, owner-managed companies. A business that requires a complete executive team is usually better evaluated using EBITDA and a market-rate management structure. Mixing the two methods can make a company appear more profitable than it really is.
Normalize Before Applying a Multiple
Start with tax returns, year-to-date financial statements, general ledgers, bank statements, payroll records, and owner interviews. Reconcile revenue to deposits. Trace every proposed add-back to source records. Replace below-market or above-market related-party expenses with market amounts.
A defensible normalization schedule shows the reported number, the proposed adjustment, the evidence, whether it continues after closing, and the buyer's conclusion. Unsupported add-backs should remain expenses.
Choose a Multiple Based on Risk
The multiple is not a reward for revenue size. It reflects durability, transferability, concentration, recurring revenue, management depth, growth, required capital expenditure, industry conditions, and the buyer's confidence in the records.
Two businesses producing identical SDE can deserve very different prices. A company with recurring contracts, clean books, a stable team, and no customer concentration is usually worth more than one dependent on the seller, a single customer, or undocumented relationships.
Run the Debt-Service Test
A valuation is not complete until the proposed purchase price is placed into a post-closing cash-flow model. Subtract a market salary for any role the buyer will not personally perform, debt service, taxes, maintenance capital expenditure, and a working-capital reserve.
If the remaining cash flow cannot support the buyer's income needs and a reasonable margin of safety, the deal is too expensive for that buyer even when the multiple looks normal.
Buyer Checklist
- Reconcile reported revenue to bank deposits
- Document every add-back
- Replace related-party expenses with market amounts
- Review three years plus trailing twelve months
- Test customer and employee concentration
- Model debt service and working capital
- Apply a downside case before making an offer
Frequently Asked Questions
What is SDE?
Seller's discretionary earnings estimates the annual financial benefit available to one full-time owner-operator after normalizing owner compensation and qualified discretionary or nonrecurring expenses.
Is SDE the same as EBITDA?
No. SDE commonly adds back one owner's compensation and benefits, while EBITDA generally assumes a market-rate management structure. SDE is most common for smaller owner-operated companies.
Should every seller add-back be accepted?
No. An add-back should be supported by records, genuinely nonrecurring or discretionary, and unlikely to continue after closing.
This guide is educational and does not replace transaction-specific legal, tax, accounting, lending, insurance, or valuation advice from qualified professionals.