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SDE calculator

SDE Calculator

Normalize owner-operated business earnings by adding back eligible owner compensation, interest, taxes, depreciation, amortization, and non-recurring expenses.

FormulaSDE = net income + owner compensation + interest + taxes + D&A + valid add-backs
Calculator

SDE Calculator

Enter your numbers and the result updates straight away.

Results

Outputs

Seller's discretionary earnings
Waiting for valid inputs
Total adjustments
Waiting for valid inputs

Planning estimate only. Verify assumptions before making a financial decision.

Worked example

$100,000 of net income plus $120,000 of owner compensation and $30,000 of valid adjustments produces $250,000 of SDE.

Methodology

How this calculation works

Every add-back should be separately documented and tested for whether a buyer would truly avoid the expense after closing.

How to interpret the result

Aggressive or unsupported add-backs overstate value. Keep a defensible adjustment schedule.

Limitations

Results are educational planning estimates. They do not include every tax, legal, accounting, financing, or business-specific consideration and are not professional advice.

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Formula and example
SDE = net income + owner compensation + interest + taxes + D&A + valid add-backs

$100,000 of net income plus $120,000 of owner compensation and $30,000 of valid adjustments produces $250,000 of SDE.

Common use cases
  • Recast owner-operated earnings.
  • Prepare a valuation input.
  • Audit seller-provided add-backs.
SDE Calculator FAQ

Which expenses qualify as SDE add-backs?

Only expenses that are documented, owner-specific or genuinely non-recurring, and unlikely to continue under the buyer’s ownership.

Is SDE the same as EBITDA?

No. SDE commonly adds one owner’s compensation and benefits, while EBITDA usually assumes market-rate management costs remain.

How is SDE calculated?

Every add-back should be separately documented and tested for whether a buyer would truly avoid the expense after closing.

How should I interpret the result?

Aggressive or unsupported add-backs overstate value. Keep a defensible adjustment schedule.