Seller's Discretionary Earnings (SDE)
SDE is the single number that tells a buyer how much money your business really puts in one owner's pocket each year. It's the earnings figure most small businesses are valued on, and getting it right is the difference between a fair price and money left on the table.
What SDE is, and why it exists
Seller's Discretionary Earnings (SDE) is the total financial benefit a single full-time owner draws from a business in a year. Think of it as the real cash the business throws off once you account for the fact that the owner pays themselves, runs a few personal costs through the company, and reports profit in a way designed to keep the tax bill low.
Small businesses exist to support their owners, and their books reflect that. The salary the owner takes, the SUV on the company card, the one-time cost of a lawsuit two years ago: none of that tells a buyer what the business will earn for them. SDE strips those owner-specific items out of net profit and rebuilds a clean picture of earning power. That's why it became the standard for valuing owner-operated companies, the kind where the founder is still answering the phones and signing the checks.
The phrase you'll hear alongside SDE is discretionary. It refers to spending the owner chooses to run through the business but a new owner wouldn't have to. Add those choices back, and you get a number a buyer can compare against any other business they're considering.
The SDE formula
SDE builds up from the bottom line of your income statement. The formula:
| Line | Why it's added back |
|---|---|
| Net profit (pre-tax) | The starting point, straight off the P&L |
| + Owner's salary & benefits | One owner's pay; a buyer wants to see the full benefit before compensation |
| + Interest | Tied to how the business is financed, not how it operates |
| + Taxes | Depends on the owner's situation and entity type, not the business |
| + Depreciation & amortization | Non-cash accounting charges, not real outflows |
| + One-time & personal add-backs | Costs a new owner won't repeat or wouldn't incur |
| = SDE | The earnings figure used to value the business |
If the interest, taxes, depreciation and amortization piece looks familiar, that's because it's the same adjustment behind EBITDA. The thing that sets SDE apart is the line above it: SDE adds back one owner's salary, and EBITDA doesn't. Hold that thought; it's the whole story behind choosing between the two.
Example
Take a small services business. The owner runs it full-time and the books show:
- Net profit (pre-tax): $400,000
- Owner's salary: + $150,000
- Other add-backs (a one-time $18,000 legal settlement, $12,000 of personal vehicle and travel costs): + $30,000
Add those up and SDE comes to $580,000. That's the figure a buyer would apply an industry multiple to, not the $400,000 net profit. The gap between the two, $180,000, is exactly the money the owner was already taking out of the business that doesn't show up as "profit." Miss it, and you'd undervalue the business by roughly that amount times the multiple. (Figures are illustrative.)
Add-backs: legitimate vs aggressive
Add-backs are where SDE gets contentious. Every dollar you add back raises your SDE, and at a 3x multiple a single $10,000 add-back is worth $30,000 at the table. That's a real incentive to be generous, and buyers know it. Their diligence team will challenge anything that smells optimistic. So the rule is simple: add back what you can defend with a document, and leave the rest alone.
| Legitimate add-backs (buyers accept) | Aggressive add-backs (diligence rejects) |
|---|---|
| Owner's salary and payroll taxes | A second working family member's salary you don't add back to replace |
| One-time legal or settlement costs | Recurring legal fees dressed up as "one-time" |
| Personal vehicle, phone, or travel run through the company | "Savings we could make" that haven't actually happened |
| Owner's health insurance and retirement contributions | Marketing or staff you'd need to keep the business running |
| A genuine one-off project (a system migration, an office move) | Anything with no invoice, receipt, or paper trail |
| Non-cash items (depreciation, amortization) | Discretionary spend that's really just normal operating cost |
The test for any add-back: would a new owner avoid this cost, and can you prove the number? If both answers are yes, it belongs in SDE. If you're stretching on either, leave it out. A clean add-back schedule that survives diligence is worth more than an inflated one that gets picked apart, because every rejected add-back makes a buyer wonder what else you've padded.
SDE vs EBITDA
SDE and EBITDA answer the same question, just for businesses of different sizes. The line between them comes down to one thing: who runs the business day to day.
SDE assumes a single owner-operator who's central to the company. It adds that owner's salary back because a buyer stepping into the role takes that pay themselves. EBITDA (earnings before interest, taxes, depreciation, and amortization) assumes the business already pays a market-rate management team, so there's no owner salary to add back. The team is a real, recurring cost, and EBITDA leaves it in.
The rough dividing line is around $1 million in earnings. Below it, most businesses are still owner-run and trade on SDE. Above it, they usually have a management layer and trade on EBITDA. Plenty of deals near that line get looked at both ways. Because SDE carries the owner's salary inside it, SDE multiples are always lower than EBITDA multiples for the same business; a company might be "3x SDE" and "5x EBITDA" and land at a similar value. The mistake is comparing a multiple from one basis against earnings on the other. Always check which figure a multiple is built on.
How SDE feeds the valuation multiple
SDE on its own isn't a value. It's one half of the equation. Value comes from multiplying SDE by an industry multiple:
SDE × industry multiple = business value
Run the example forward: $580,000 SDE in a sector that trades at 3x lands around $1.74M. Move that multiple to 4x and you're at $2.32M. The multiple does a lot of work, and it's driven by growth, recurring revenue, margins, customer concentration, and how much the business leans on the owner. We break the typical ranges down in our report on EBITDA & SDE multiples by industry, and you can run your own numbers through the business valuation calculator.
If you want the bigger picture on how the pieces fit, business valuation methods explained walks through the market, income, and asset approaches and where the earnings multiple sits among them.
Common mistakes owners make with add-backs
- Forgetting the owner's salary. The biggest add-back of all, and the one undervalued businesses miss. If you don't add your own pay back, you're handing the buyer free money.
- Padding with stuff you can't prove. Add-backs without receipts get struck in diligence, and they cost you credibility on the rest of the schedule.
- Calling recurring costs "one-time." If it happened two years running, a buyer counts on it happening again. It's not an add-back.
- Double-counting. Adding back both a manager's salary and the owner's when the business genuinely needs both roles filled.
- Mixing up SDE and EBITDA. Adding the owner's salary back to EBITDA, or applying an EBITDA multiple to an SDE figure. The two don't interchange.
None of this is exotic. It's bookkeeping discipline plus honesty about what a new owner would actually face. Getting it right before you go to market means the SDE number holds up when a buyer's accountant goes through it line by line, and that's what protects your price.
Frequently asked questions
What is seller's discretionary earnings?
SDE is the total financial benefit a single owner-operator takes from a business in a year. It starts with net profit and adds back the owner's salary, interest, taxes, depreciation and amortization, and any one-time or personal expenses that run through the business. It shows a buyer how much the business actually generates for one full-time owner, which is why it's the standard earnings figure for valuing small, owner-run companies.
How do you calculate SDE?
Start with net profit, then add back the owner's salary and benefits, interest, income taxes, depreciation and amortization, and legitimate one-time or personal add-backs. The total is your SDE. For example: $400,000 net profit + $150,000 owner salary + $30,000 of other add-backs = $580,000 SDE.
What are add-backs?
Add-backs are expenses on the income statement added back to profit because they don't reflect the real ongoing cost of running the business for a new owner. Legitimate ones include the owner's salary, genuine one-time costs, and personal expenses paid through the company. Aggressive add-backs that diligence will reject include normal recurring costs, hypothetical savings, and anything without a paper trail.
SDE vs EBITDA: which should I use?
Use SDE for owner-operated businesses, usually under roughly $1 million in earnings, where one working owner is central. Use EBITDA for larger companies that already pay a market-rate management team. The difference is the owner's salary: SDE includes it, EBITDA doesn't, which is why SDE multiples run lower.
Why are SDE multiples lower than EBITDA multiples?
Because SDE includes the owner's salary and EBITDA doesn't. SDE has a larger earnings base, so the multiple applied to it is smaller. The same business can be "3x SDE" or "5x EBITDA" and reach a similar value. Always confirm which earnings figure a multiple is built on before comparing.
See what your business is actually worth.
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