SDE vs EBITDA

If you are buying a business under $10M, you will see its earnings quoted two ways, and the two numbers can differ by a third or more. A broker's listing says SDE of 390K. Your accountant models EBITDA of 260K. Neither is wrong. They are answering different questions, and the whole point of valuation is knowing which question is yours.

This is a companion to our guide on how to value a business. Here we go one level down into the earnings figure itself, because almost every valuation mistake we see at the sub-$10M level starts here.

The one difference that matters: who runs it

Strip away the acronyms and there is a single distinction underneath.

SDE (seller's discretionary earnings) measures what the business generates for a single owner-operator who works in it. It adds back one owner's full compensation, because the assumption is that you, the buyer, will take that seat and that pay yourself. SDE answers: if I run this myself, what does it put in my pocket?

EBITDA (earnings before interest, taxes, depreciation, and amortization) measures what the business earns after paying market wages to everyone, including a manager in the owner's chair. It does not add back the owner's salary, because it assumes that role is a real cost that has to be filled. EBITDA answers: if I hire someone to run this, what is left over?

That is why SDE is always the larger number. The gap between them is, roughly, one owner-operator's total compensation.

The bridge between the two

You can move between the metrics with one line:

Or in reverse:

That second version is the one that protects you. If a listing quotes SDE and you plan to hire a general manager, you must subtract that manager's real cost before you value the business, or you are paying for labor you will still have to buy.

Which metric applies to your deal

The rule of thumb tracks deal size, because deal size tracks how the business is run.

Use SDE when the business is genuinely owner-operated and you intend to run it yourself. This is most main-street and lower-end deals, typically where earnings are under roughly 1M. Think trades, service businesses, small e-commerce, single-location operations. One owner, one seat, and you are taking it.

Use EBITDA when the business already runs on a management layer, or is large enough that you will not be the day-to-day operator. This is the lower-middle-market, usually earnings above 1M to 2M, where a buyer is underwriting the cash flow of a company, not buying themselves a job.

The middle is fuzzy on purpose. A business earning 800K might be valued either way depending on the buyer's plan. What you cannot do is let the metric drift halfway through the analysis.

The mistake that costs six figures: mismatched multiples

Here is the part that actually moves the price.

The two metrics carry different multiple ranges because they carry different risk. SDE, which leans on one owner doing the work, typically trades around 2 to 4x. EBITDA, which reflects a business that runs without its owner, typically trades higher, around 4 to 8x at this size, because that cash flow is more transferable and less fragile.

Those ranges are not interchangeable, and mixing them is the single most common valuation error we see:

• Apply a 4.5x EBITDA multiple to a 390K SDE figure and you get 1.75M. You have just agreed to pay for the owner's salary twice and priced the business like it runs itself when it does not.
• Apply a 3.0x SDE multiple to a 260K EBITDA figure and you get 780K, an offer so low the seller will not take your next call.

Same business, wildly different answers, entirely because the metric and the multiple were mismatched.

A worked example that reconciles

Take a distribution business with 1.5M in revenue. The owner works in it full-time and pays themselves 120K plus about 10K in benefits. The books show:

• Operating income (EBIT): 215K
• Depreciation and amortization: 25K
• Interest expense: 15K
• One-time legal expense this year: 8K
• Owner's personal vehicle run through the business: 12K

Adjusted EBITDA (for a buyer who will hire a manager, with the owner's 120K treated as a roughly market wage for that role):

SDE (for a buyer who will run it themselves and take the owner's seat):

The bridge is exactly the owner's 130K of total comp, just as expected.

Now price it correctly on each basis:

• SDE 390K × 3.0x = 1.17M
• EBITDA 260K × 4.5x = 1.17M

They converge, because a correct multiple on the correct metric describes the same business. That convergence is the tell that your analysis is internally consistent. When the two methods land far apart, one of your inputs, usually the owner-comp normalization or the multiple, is wrong.

Where diligence actually happens

The clean example above hides the real work, which is verifying the inputs. This is the diligence layer, and it is where a defensible valuation is won or lost:

• Normalize owner compensation to a real market wage. If the owner underpays themselves at 40K, SDE looks inflated and EBITDA looks great, until you price in the 120K it will cost to replace them. If they overpay themselves, the reverse. Adjust to what the role actually costs in the market, not what the seller happened to pay.
• Prove every add-back. Each add-back is a claim that an expense will not continue under your ownership. One-time legal fees, the owner's car, a family member on payroll who does not work there, personal travel. Sellers add back aggressively. Your job, and your lender's, is to accept only what is genuinely non-recurring and documented.
• Separate one-time from recurring. A "one-time" expense that shows up three years running is not one-time. Pull multiple years, not just the trailing twelve months.
• Watch for the metric switch mid-pitch. A well-packaged listing will quote SDE (the bigger number) and then anchor on an EBITDA-style multiple in conversation. Hold the metric and the multiple together, always.

The takeaway

SDE and EBITDA are not competing answers. They are the same business viewed through two different operating plans, yours and a hired manager's. Pick the one that matches how you will actually run it, normalize owner pay before you compare anything, document every add-back so the number holds up under the bank's scrutiny, and never let an EBITDA multiple touch an SDE figure. Do that and your valuation is not just a number, it is one you can defend across the table and to your lender.

If you want to see both figures for a specific business, our free valuation calculator runs the SDE and EBITDA math and returns a defensible range in a couple of minutes.