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SDE, EBITDA, or Owner’s Cash Flow: Which Number Actually Matters?

By Christian Schweizer, MBA, CVA — March 5, 2026

When a business owner asks what their company is worth, the answer almost always begins with another question: which earnings number are we using? This is not a technicality. It is one of the most consequential choices in the entire valuation process, and it is one that surprises many owners who assumed their tax return or their bookkeeper’s profit figure was the starting point.

In practice, three earnings metrics drive the vast majority of small and mid-sized business valuations: Seller’s Discretionary Earnings (SDE), Earnings Before Interest, Taxes, Depreciation, and Amortization (EBITDA), and what practitioners often call Owner’s Cash Flow. Each tells a different story about the business, and applying the wrong one — or misunderstanding how they relate to each other — can distort a valuation significantly in either direction.

Seller’s Discretionary Earnings: The Small Business Standard

SDE is the earnings metric most commonly used to value owner-operated businesses with annual revenues below approximately $5 million. It starts with net income and adds back the owner’s total compensation (salary, benefits, perquisites, and any personal expenses run through the business), plus taxes, interest, depreciation, and amortization, plus any non-recurring or non-operating items.

The logic behind SDE is straightforward: in an owner-operated business, the owner’s compensation and the business’s true profitability are intertwined. A buyer who will step into the owner’s role wants to know the total economic benefit the business generates for a single working owner. SDE captures that figure.

It is worth noting that SDE is not a GAAP measure. It is an analytical construct, and its integrity depends entirely on how carefully the add-backs are documented and justified. Inflated or poorly supported add-backs are one of the most common red flags a buyer’s advisor will challenge during due diligence.

EBITDA: The Institutional Buyer’s Lens

EBITDA is the preferred metric for larger businesses — typically those with revenues above $2 to $5 million — and for transactions involving institutional buyers such as private equity groups, strategic acquirers, and lenders. Unlike SDE, EBITDA assumes the business will be run by a professional management team rather than the owner personally. Owner compensation is therefore normalized to a market-rate salary for a replacement manager, not added back entirely.

This distinction matters enormously in practice. Consider a business generating $600,000 in SDE where the owner pays themselves $250,000. If a replacement manager could be hired for $150,000, EBITDA — after that normalized compensation adjustment — would be approximately $450,000. Apply a market multiple to each figure and the gap between an SDE-based value and an EBITDA-based value can be substantial.

EBITDA is also the metric most closely tracked by lenders underwriting acquisition financing, which makes it relevant even in transactions where the buyer is an individual rather than an institution.

Owner’s Cash Flow: A Bridge Measure

Owner’s Cash Flow (sometimes called Discretionary Cash Flow) occupies a middle ground. It typically begins with EBITDA and adds back the specific owner-related items that a new owner would control or eliminate. It is most often used in income-based valuation approaches when the goal is to capture what a particular buyer — rather than a hypothetical market participant — would actually receive from the business. In formal valuation engagements conducted under NACVA Professional Standards, this measure appears most frequently in the context of the capitalization of earnings or the discounted cash flow methods.

Which Metric Applies to Your Business?

The short answer: it depends on the size of your business, the likely buyer profile, and the purpose of the valuation. The table below summarizes the general guidance:

Metric

Best Used For

Typical Buyer

SDE

Revenue < $5M, owner-operated

Individual / owner-operator

EBITDA

Revenue > $2M, managed businesses

Private equity, strategic acquirers

Owner’s Cash Flow

Income-based formal valuations

Formal appraisal contexts

Choosing the right earnings metric is not simply a technical preference. It shapes every subsequent step in the valuation: which multiples are appropriate, which comparable transactions are relevant, and ultimately what the business is worth. A Certified Valuation Analyst applies professional judgment to select and defend the appropriate measure for each specific engagement — and to ensure that the add-backs supporting it will hold up to scrutiny from buyers, lenders, or the IRS.

“The earnings number that drives your valuation is not the one on your tax return. It is a carefully constructed, professionally normalized figure — and the difference between getting it right and getting it wrong can be measured in hundreds of thousands of dollars.”

This article is intended for general educational purposes and does not constitute a formal valuation opinion or engagement. Business valuations performed by this firm are conducted in accordance with the National Association of Certified Valuators and Analysts (NACVA) Professional Standards. For questions about your specific situation, please contact us.

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