Blog
What Is Seller's Discretionary Earnings?
The Definition and What It Is Trying to Measure
Seller's Discretionary Earnings, commonly abbreviated as SDE, is the financial metric most widely used to value small, owner-operated businesses. It represents the total financial benefit that a single owner-operator receives from the business, combining the business's net income with the owner's compensation and all other owner-related expenses that run through the company. The purpose of this metric is to give a buyer, or any evaluator, a clear picture of what the business actually generates — stripping away the layer of personal financial decisions the current owner has made about how to structure their compensation and expenses.
How SDE Is Calculated Step by Step
The calculation starts with the business's net profit as reported on the tax return or income statement. To that, the evaluator adds back the owner's total compensation — salary, payroll taxes, and any retirement contributions made on the owner's behalf through the business. Non-cash charges like depreciation and amortization are added back. One-time or non-recurring expenses — a lawsuit settlement, major non-recurring equipment repair, or a one-time marketing campaign — are added back as well. Personal expenses the owner runs through the business, such as a personal vehicle, personal cell phone, or personal travel, are added back to the extent they are genuinely personal rather than business. The result is SDE: what this business is actually worth to a single owner-operator who runs it full time.
Why SDE Rather Than EBITDA
EBITDA — earnings before interest, taxes, depreciation, and amortization — is the standard metric for valuing larger, professionally managed companies where market-rate management is already in place. For a small owner-operated business, EBITDA understates the actual earning power because it does not add back the owner's compensation, treating the owner as if they were a salaried employee at market rates when in reality they may be paying themselves far below or above what market-rate management would cost. SDE corrects for this by normalizing around the single-owner-operator model, which is the structure most small business buyers are actually purchasing into.
Common Legitimate Add-Backs
Legitimate add-backs are expenses that reflect the current owner's personal choices and would not necessarily be incurred by a new owner. The most common include the owner's salary and benefits, a personal vehicle or vehicle allowance used primarily for personal purposes, personal life insurance premiums paid by the business, the owner's travel and entertainment that is primarily personal in nature, and depreciation on assets that are not actually being replaced or would not need to be replaced in the near term. Each add-back should be documented with actual expense records rather than estimated, because buyers will ask for supporting documentation during due diligence.
Common Mistakes in Calculating SDE
The most common mistakes in SDE calculation fall into two categories: overstating and understating. Overstating happens when sellers include add-backs that are not genuinely discretionary — adding back the cost of a part-time bookkeeper who is genuinely necessary for operations, for example, inflates SDE beyond what a new owner would actually realize. Understating happens when sellers forget to add back legitimate items, particularly smaller personal expenses spread across multiple expense categories. Using only one year's data is also a common mistake; buyers generally want to see three years of normalized SDE to understand whether the number is stable or variable, and a single strong year may not be representative.
Industry Multiples and How They Are Applied
Once a normalized SDE figure is established, buyers and evaluators apply a multiple to arrive at an estimated enterprise value. For small businesses under three million dollars in revenue, SDE multiples typically range from two to four times annual SDE, with the specific multiple driven by factors including revenue stability, customer concentration, industry growth trends, how long the business has operated, whether it has any proprietary systems or contracts, and how dependent it is on the owner. A business with stable recurring revenue, diversified customers, and low owner dependency commands a higher multiple than a comparable-revenue business that is highly concentrated or owner-dependent.
Normalizing for Anomalous Years
Not every year in a business's history is representative of normal operations. A strong year produced by a one-time large contract, a weak year caused by a construction project blocking the business's main entrance, or any COVID-affected year may not reflect the business's baseline performance. Buyers and evaluators typically want to see a weighted average of three to five years of SDE, with explicit notes about why any year was anomalous. The seller's job is not to hide the anomalies but to contextualize them — a well-explained unusual year is treated very differently than an unexplained one.
Using SDE in Negotiations
SDE is the foundation of the initial valuation, but it is not the end of the conversation — it is the beginning. Buyers will have their own view of which add-backs are legitimate, which years are representative, and what multiple the business warrants given its specific characteristics. Having well-documented, defensible SDE calculations — with three years of financial statements, supporting receipts for add-backs, and clear explanations of any anomalous years — puts the seller in a stronger negotiating position than arriving with a number that cannot be substantiated. Working with an accountant who has experience in small business transactions, rather than just tax preparation, is worth the cost.
See what a direct evaluation of your business could look like →