Key takeaways
- SDE estimates the financial benefit available to one full-time owner-operator.
- The quality of add-backs matters as much as the multiple applied to earnings.
- Comparable multiples must be adjusted for size, risk, growth, concentration, and transferability.
- A supported valuation is a range, not a single guaranteed sale price.
What SDE is
Seller’s Discretionary Earnings is commonly used to value owner-operated small businesses. It starts with reported profit and adds back selected expenses or benefits that a single replacement owner may receive or avoid.
Illustrative formula
SDE = Pre-tax profit + one owner’s compensation + interest + depreciation/amortization + supported discretionary or nonrecurring expenses
Common SDE add-backs
An add-back is not valid merely because the seller labels it discretionary. The buyer should verify the amount, confirm that it appears in the financial records, and determine whether the expense will truly disappear after closing.
- One working owner’s salary, payroll taxes, and benefits.
- Interest expense when the buyer’s financing structure will replace existing debt.
- Depreciation and amortization, while recognizing that future capital expenditures still matter.
- Documented personal expenses that are not required for normal operations.
- Clearly nonrecurring legal, relocation, casualty, or one-time project costs.
Add-backs that deserve extra scrutiny
- Under-market rent when the buyer will pay market rent after closing.
- Family payroll when those duties must still be replaced.
- Repairs classified as one-time even though they recur annually.
- Growth investments that may need to continue to sustain revenue.
- Owner expenses that are mixed with legitimate business costs.
Applying an SDE multiple
A simplified market approach multiplies normalized SDE by a market-supported multiple. The multiple reflects the durability and transferability of the cash flow, not just the industry label.
- Higher quality: recurring revenue, stable margins, documented systems, low concentration, capable staff, and limited owner dependence.
- Lower quality: volatile earnings, weak records, customer concentration, deferred investment, key-person dependence, or licensing risk.
Illustrative example
$300,000 normalized SDE × 3.0 multiple = $900,000 indicated operating-business value before deal-specific adjustments.
From indicated value to transaction value
The operating-business value may still require adjustments for excess cash, debt, working capital, inventory, real estate, equipment condition, assumed liabilities, and deal structure. A buyer may also pay a different price depending on financing terms, seller support, earnouts, or contingent consideration.
The strongest valuation conclusion reconciles earnings quality, market evidence, assets, financing feasibility, and the risks discovered during due diligence.
Step 2 · Apply what you learned
Continue into a Professional Playbook
The guide explains the concept. The playbook turns it into a complete, documented workflow you can use on an actual client or investment assignment.
Step 3 · Test the actual transaction
Generate Deal Intelligence with Acqyrly
Enter the actual assumptions, compare scenarios, review decision metrics, and identify the questions that require better documentation.