Arcane University

Valuation

What SDE is, and how to rebuild it yourself

The SDE on a listing is the seller's argument for a price. Before you agree with the argument, rebuild the number from documents you can verify.

Updated October 6, 2026 · 7 min read

An open ledger, brass magnifying glass and document folios on a plum desk.
Keep the evidence beside the decision. Original illustrative artwork.

Where the cash goes

Annual amounts in USD, before income taxes.

Cash-flow bridge. Exact amounts appear below the chart.043.8k87.5k131.3k175kSDEPayReserveDebtCash
Stated SDE
$175,000
Replacement pay
−$60,000
Capex reserve
−$15,000
Debt service
−$72,865
Annual cash flow
$27,135

Fictional example: $500,000 price, $175,000 SDE, 10% down, 10.5% loan over 10 years. Change the assumptions in the calculator.

Seller's discretionary earnings is the total financial benefit one full-time owner-operator takes out of a business in a year. It starts with pre-tax profit and adds back the owner's own salary and benefits, interest, depreciation and amortization, and one-time or non-business expenses. It answers a simple question: if you owned this business and ran it yourself, how much cash would it produce before you paid any debt or yourself?

Most businesses that sell for under a few million dollars are priced as a multiple of SDE. That makes SDE the most important number in the deal, and also the easiest to inflate.

The formula

SDE = net profit before tax + owner's salary and payroll taxes + owner's benefits + interest + depreciation and amortization + legitimate one-time and personal expenses run through the business.

Larger businesses with a management team are usually valued on EBITDA instead, which does not add back a manager's salary because a buyer would still have to pay one.

A worked example

LineAmount
Net profit before tax (illustrative corporation accounts)$62,000
Owner's W-2 salary and payroll tax$55,000
Owner's health insurance$14,000
Interest on equipment loan$6,000
Depreciation$21,000
One-time roof repair on owned building$9,000
Owner's personal vehicle, run through the business$8,000
Stated SDE$175,000

At a 3× multiple, that is a $525,000 asking price. Every $10,000 of add-backs you accept adds $30,000 to the price. That is why add-backs deserve the most scrutiny.

This example assumes the owner's compensation was deducted in the business accounts. A sole proprietor's owner draws are not W-2 wages and should not be added back as a wage expense. Match the bridge to the entity's actual tax treatment; see IRS sole proprietorship guidance. Avoid counting the same benefit twice.

Which add-backs survive

Usually fine, once documented: the owner's salary and payroll taxes, the owner's health insurance, interest, depreciation and amortization.

Fine only with evidence: a one-time expense that genuinely will not recur. A roof repair once in twenty years is one-time. Equipment repairs every year are not, no matter what the seller calls them.

Usually rejected:

How to rebuild it

  1. Get three years of tax returns and the year-to-date profit and loss statement. Lenders use the returns. So should you.
  2. Reconcile revenue to bank deposits. Twelve months of statements should roughly match reported revenue. Big gaps in either direction need an explanation.
  3. List every add-back with a document. A receipt, an invoice or a ledger entry. No document, no add-back.
  4. Apply replacement compensation and a capex reserve. If you will hire a manager, subtract their full cost.
  5. Look at the trend, not the average. Three years at $150,000, $175,000 and $200,000 is a different business from $200,000, $175,000 and $150,000.

When to bring in an accountant

For a deal large enough to justify it, a quality of earnings review by an independent accountant tests revenue, expenses and add-backs in far more depth. It costs money. It costs much less than overpaying for earnings that are not there.