EBITDA vs. SDE: Which Earnings Metric Actually Matters When Buying a Small Business

The whole $120,000 difference is one line: whether the owner's pay counts as profit or as a cost.

That line is EBITDA vs SDE on a small business, and it's where most buyers misread the deal. The broker quotes the bigger number, you put a multiple on it, and you've overpaid before diligence even starts. Both numbers are real. Neither one's your take-home.

The difference in one line

It comes down to a single owner's salary.

SDE (seller's discretionary earnings) counts the owner's compensation as part of the return, because it measures what one working owner pulls out of the business. EBITDA takes a market-rate salary for that owner's role out first, so it measures what the business earns after somebody's paid to run it. The gap between them is whatever it costs to replace the owner.

What each one adds up

Both start in the same spot, the profit and loss statement you read before you trust any figure. They split on one question: is the owner's labor profit or expense?

The names tell you the design. SDE has "discretionary" in it because it includes money the owner chooses how to spend, starting with their own paycheck. EBITDA assumes that pay is a real cost the next operator can't dodge. (If you want every letter broken down, here's the definition of EBITDA.)

One more thing people miss. SDE assumes a single full-time owner, so a business with two working owners only gets one salary added back. Miss that and the listing's SDE is padded by a second person's pay that the next buyer still has to cover, so always ask how many owners the figure assumes.

Who runs it the day after you close

Strip out the forumlas and one number does all the work: what it costs to replace the owner.

SDE answers as if you're the next owner-operator, in the seat. EBITDA answers as if a hired manager's in that seat and you're holding the asset.

Back to that $300,000 listing. Say the owner pays themselves nothing and does $120,000 worth of management and sales work. To get EBITDA you charge a market salary for that role against the earnings:

• SDE: $300,000.
• Replacement salary for the owner's job: $120,000.
• EBITDA: roughly $180,000.

That's a $120,000 spread with not one dollar of revenue changed. The owner who never wrote themselves a check made the place look more profitable than it is to anyone who has to hire that role.

And that's where buyers get fooled. The seller quotes SDE, you treat it in your head like profit a manager-run business throws off, and you've skipped the most expensive line in the deal. The honest read is the buyer's read, what's left after the owner walks and someone's paid to take their place, and it's the lens behind the whole valuation method.

When each one applies

The market quotes both, sorted by size and by who's going to run the place. So the choice is a transferability question before it's a math question. If the earnings only exist while a working owner sits in the chair, SDE's the honest frame. If they survive a salaried manager, EBITDA is.

Convert before you compare to any multiple. A 3x quote on SDE and a 3x quote on EBITDA are two different prices on the same business.

The trap is mixing them. The seller quotes SDE, the comp set is built on EBITDA multiples, and the buyer ends up paying an EBITDA multiple on an SDE number. That one mismatch can swing a small deal by six figures. And whichever metric you use, the earnings under it have to pass the quality-of-earnings check before the multiple means anything.

Getting from their number to yours

Neither metric is what you take home. Your cash flow is what's left after you pay yourself, pay the bank and hold a reserve. Run the listing's $300,000 of SDE through it:

1. Start with SDE: $300,000, the number the listing leads with.
2. Subtract owner replacement: pay a manager $120,000 to do the owner's job, leaving roughly $180,000. That's the EBITDA-level number, the real standalone earnings.
3. Subtract debt service: an SBA 7(a) buyer pays the loan from here, which can run $80,000 to $120,000 a year depending on price and terms.
4. Subtract a working-capital reserve: the cash it takes to get through a slow quarter. You don't get to pocket it.

What's left, often well under half the headline SDE, is your actual cash flow. That's the number that decides whether the deal feeds you or starves you, and it traces back to one defined term. Seller's discretionary earnings is the owner's return. Yours is the smaller number at the bottom of that list.

The more a business needs its owner, the bigger the salary you subtract and the thinner your cash gets at any given price. So when that broker's email lands with $300,000 in the subject line, take $120,000 off before you let yourself do any more math.

FAQ

What is the difference between EBITDA and SDE?

The difference between EBITDA and SDE is the owner's salary. SDE counts the owner's compensation as part of the return because it measures what one working owner takes from the business, while EBITDA subtracts a market-rate salary for the owner's role first because it measures what the business earns after someone is paid to run it.

When do you use SDE instead of EBITDA?

You use SDE when one owner will personally operate the business, which covers most main-street deals under roughly $1M in price. You switch to EBITDA when a manager will run the business, because then the owner's salary is a real cost the buyer pays rather than a return the buyer keeps.

How do you convert SDE to EBITDA?

You convert SDE to EBITDA by subtracting a market-rate salary for the owner's role from the SDE figure. On a $300,000-SDE business where replacing the owner costs $120,000, EBITDA lands near $180,000, and that owner-replacement line is the entire structural gap between the two numbers.

You cannot price a deal on a number you have not converted.

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