What Is SDE and How Is It Different From EBITDA?

Seller’s discretionary earnings (SDE) is a business’s pre-tax, pre-interest earnings with depreciation, amortization, one owner’s total compensation and benefits, and discretionary or non-recurring expenses added back. EBITDA is earnings before interest, taxes, depreciation, and amortization, with the owner’s compensation left in as an expense. The precise difference is the owner: SDE assumes one owner-operator works in the business and takes nothing out of the earnings figure; EBITDA treats the cost of running the business, including whoever manages it, as a real expense.

For the same business, SDE is always the larger number, and the gap between the two is roughly the market cost of the owner’s role. This article gives both definitions, a side-by-side comparison, a worked reconciliation from net income to each, and the practitioner point about which one a buyer should be underwriting on.

What is seller’s discretionary earnings (SDE)?

SDE is the total financial benefit a single full-time owner-operator derives from a business in a year, before financing costs, non-cash charges, and taxes. It is the earnings measure brokers use to list most owner-operated small businesses, and it is the base most small-business valuation multiples are quoted against. As defined by the International Business Brokers Association (IBBA) and the M&A Source, which maintain the standard definition used in small-business transactions, SDE starts from pre-tax net income and adds back interest, depreciation, amortization, one owner’s total compensation and benefits, and discretionary or non-recurring expenses. (Source: IBBA and M&A Source, Seller’s Discretionary Earnings definition; a market-standard definition, not a statutory or SBA rule.)

Written as a build:

SDE = pre-tax net income + interest expense + depreciation + amortization + one owner’s salary, payroll taxes, and benefits + owner’s personal or discretionary expenses run through the business + non-recurring expenses (less non-recurring income)

Three features of the definition matter in practice. It adds back one owner’s compensation, so a business run by two working spouses has the second owner’s compensation treated as an ordinary expense (or normalized to a market wage). It adds back the owner’s total compensation and benefits, not just salary, so health insurance, vehicle, phone, and retirement contributions the business paid for the owner are included. And the add-back is unconditional: SDE does not ask whether the buyer will actually do the owner’s job. That third point is where SDE and underwriting part company, and it is covered below.

What is EBITDA?

EBITDA is earnings before interest, taxes, depreciation, and amortization: net income with those four items added back. It is a widely used measure of operating profitability that strips out financing structure (interest), tax structure (income taxes), and non-cash accounting charges (depreciation and amortization) so that businesses with different capital structures and asset bases can be compared on operations. It is not a measure defined by GAAP, and different parties compute it slightly differently, but the four add-backs are the core.

Written as a build:

EBITDA = net income + interest expense + income tax expense + depreciation + amortization

Management compensation stays in EBITDA as an operating expense. If the owner runs the business and draws a salary, that salary is a cost of operations under EBITDA, the same as any other manager’s would be. If the owner draws no salary or a token one, EBITDA overstates operating profit, which is why practitioners normalize it, and why “adjusted EBITDA” exists.

Adjusted EBITDA takes EBITDA and applies normalizing adjustments: it removes genuinely non-recurring items, removes personal expenses run through the business, and, most importantly for an owner-operated company, replaces the owner’s actual compensation with a market-rate salary for the role. It does not add the owner’s compensation back entirely; it corrects it. For an owner-operated business, adjusted EBITDA therefore lands between EBITDA and SDE, and the difference between adjusted EBITDA and SDE is essentially the market cost of the owner’s job.

What is the difference between SDE and EBITDA?

The owner. SDE adds back one owner’s total compensation and benefits; EBITDA leaves management compensation in as an expense. Every other difference follows from that one, and the rest of the two definitions substantially overlap: both exclude interest, depreciation, and amortization; both are pre-tax in effect (SDE starts from pre-tax income; EBITDA adds taxes back); both are commonly cleaned of non-recurring items in practice.

Worked reconciliation: from net income to EBITDA and to SDE

All figures are illustrative and round. They are not typical results and not a projection for any business. A pass-through business (no entity-level income tax) reports the following for the year. The owner runs it full time and would cost about $120,000 in salary and benefits to replace at market.

And the adjusted EBITDA bridge, from the same starting point:

The three figures for the same business: EBITDA $250,000, adjusted EBITDA $280,000, SDE $400,000. The $120,000 gap between SDE and adjusted EBITDA is exactly the market cost of the owner’s role. A buyer who will do that job personally, at that intensity, and who has other means to live on, can think about the business in SDE terms. A buyer who will hire someone, or who needs to be paid, cannot. Which add-backs in lines 8 and 9 survive a buyer’s or lender’s review is its own question, covered in which add-backs are legitimate in a business sale.

Which measure does an SBA lender use?

EBITDA, adjusted for items the lender can justify, not SDE. Under SBA SOP 50 10 8 (effective June 1, 2025, in force as of this article’s review date), operating cash flow for the coverage ratio on a Standard 7(a) loan is defined as EBITDA, and the lender must justify additions and subtractions such as unfunded capital expenditures, non-recurring income, expenses and distributions, S-corporation tax distributions, rent payments, and owner’s draw. (Source: SBA SOP 50 10 8, Section B, Chapter 1, Underwriting Standard 7(a) Loans, Lender’s Credit Analysis, financial analysis of repayment ability.) SBA SOP 50 10 8.1 (effective October 1, 2026) defines the change-of-ownership coverage ratio as EBITDA divided by combined post-transaction debt service and lists ownership compensation and seller discretionary expenses among the adjustments the lender may make with written justification, requiring that the owner’s compensation be sufficient to cover their living expenses. (Source: SBA SOP 50 10 8.1, Appendix 15, 7(a) Changes of Ownership, Historical and Adjusted Debt Service Coverage.) The point is not that a term is missing; it is that SBA and brokerage use different earnings measures. SBA underwrites acquisition cash flow on an EBITDA-based measure, adjusted item by item, while brokers quote SDE for valuation. Where the SOPs use the phrase “seller discretionary,” it is as a label for a category of expense adjustment, not as the SDE earnings measure a listing is priced on.

This is general information about SBA program rules, not advice for your specific transaction. Confirm the SOP version and your lender’s own methodology with your lender.

The practical consequence, framed as judgment: a listing quotes SDE, a lender computes adjusted EBITDA, and the distance between them is the owner’s labor. A buyer who prices a deal off SDE and finances it with an SBA loan will discover that distance in underwriting unless it was modeled first. How replacement management enters the coverage calculation, and how much it moves the ratio, is worked through in does owner salary reduce SBA debt-service coverage.

When should a buyer use SDE, and when EBITDA?

Framed as practitioner judgment: use SDE to compare owner-operated listings to each other and to understand a broker’s asking price, because that is the base the market quotes. Use adjusted EBITDA, with a market salary for whoever will run the business, to decide what the business can actually pay you and your lender, because that is the base underwriting runs on. Most buyer mistakes in this area come from mixing the two: applying an SDE multiple to an EBITDA figure (which understates price), applying an EBITDA multiple to SDE (which overstates it), or, most commonly, pricing off SDE and then discovering that coverage was always going to be tested on adjusted EBITDA.

Two corollaries follow. First, a multiple of SDE and a multiple of EBITDA are not comparable, and the same business will show a lower multiple on EBITDA than on SDE simply because the base is smaller; the mechanism, not any particular figures, is what matters. Second, as businesses grow past a single owner-operator and take on management, SDE stops describing them well (there is no one owner whose compensation captures the cost of running the company) and EBITDA becomes the natural measure. Where that transition happens for a given business is a judgment about the business, not a rule. How the multiple itself is set is the subject of how are small businesses valued for sale.

Related and next steps

• Which add-backs are legitimate in a business sale? →
  Which SDE add-backs survive a buyer's or lender's scrutiny.
• How to read a broker-prepared profit and loss →
  What to scrutinize in the financials a listing is built on.
• Does owner salary reduce SBA debt-service coverage? →
  The replacement-management adjustment that turns SDE into lendable cash flow.
• See where earnings review fits in the full pre-LOI acquisition checklist →

About the author

Steve Morello is the founder of NexTax Advisory. His career spans corporate tax and transaction-related tax matters across private-equity and investment-fund environments, including experience at EY and Morgan Stanley. Today he applies that financial and tax background to lower-middle-market acquisitions and exits, and is the creator of AcquiFlow, pre-LOI underwriting software for SMB buyers.

About Steve →

Published August 17, 2026. Materially reviewed August 17, 2026. This article is general information, not advice for your specific situation. NexTax Advisory provides financial and tax advisory services and does not provide legal services or formal audit or attest engagements. Consult your own attorney, lender, and accountant on your specific transaction.