Why Your Profit Number Isn't What Buyers Will Pay For
If you're thinking about selling your business, you've probably looked at your bottom line and thought, "That's what my business is worth." But here's the reality: most small-business buyers don't care about your net profit. They're looking at something called SDE—Seller's Discretionary Earnings—and it's a very different number.
The gap between these two metrics can be thousands of dollars. Understanding the difference isn't just accounting trivia. It directly affects how much a buyer will offer and whether you're even comparing apples to apples when you talk about valuation.
What Is SDE and Why Do Buyers Use It?
SDE is your business's earnings before you remove owner perks, one-time expenses, and non-recurring costs. Think of it as the cash a new owner could reasonably expect to pocket in year one, assuming they run the business the way you do.
Here's a simple formula:
SDE = Net Profit + Owner Compensation + Non-Recurring Expenses + Non-Cash Expenses
Buyers use SDE because it levels the playing field. Your business might have a lower net profit because you:
- Pay yourself a salary (which you might reduce or eliminate as a buyer)
- Deduct owner health insurance or a vehicle lease
- Write off a one-time legal settlement or equipment replacement
- Depreciate assets that still have real value
A buyer stepping in could change any of these. So they want to see the earnings potential without your personal spending built in.
A Real Example: Service Business
Let's say you own a plumbing service with $300,000 in annual revenue. Your P&L shows:
- Revenue: $300,000
- Labor: $120,000
- Materials: $40,000
- Vehicle lease (personal): $8,000
- Your salary: $80,000
- Depreciation: $5,000
- Other expenses: $30,000
- Net Profit: $17,000
That $17,000 looks rough. But here's your SDE:
- Net Profit: $17,000
- Add back your salary: +$80,000
- Add back personal vehicle: +$8,000
- Add back depreciation: +$5,000
- SDE: $110,000
A buyer sees $110,000 in discretionary earnings—money they could take home or reinvest. That's the number they'll use to value your business, typically applying a multiple of 2–4x depending on the industry and business stability.
What Counts as an Add-Back?
Not everything you spend money on gets added back. Buyers are reasonable, but they're also skeptical. Here are the most common (and defensible) add-backs:
- Owner salary — if you pay yourself, that's discretionary. A buyer might pay themselves less or more.
- Owner benefits — health insurance, retirement contributions, life insurance premiums tied to you personally.
- Vehicle or equipment leases — if they're in your personal name and the buyer can negotiate differently.
- Depreciation and amortization — non-cash charges that reduce profit but don't reduce cash flow.
- One-time or non-recurring expenses — lawsuit settlements, emergency repairs, a year you hired a consultant for a specific project.
- Excessive owner discretionary spending — travel, meals, or entertainment you could reduce.
What doesn't count: regular salaries for employees, rent, insurance, utilities, or cost of goods sold. Those are real operating costs a buyer will still have to pay.
Common Mistakes When Calculating SDE
Over-adding back. Owners sometimes get creative and add back things that aren't defensible. "My daughter works here for free" or "I write off my home office" might feel like add-backs, but a buyer won't believe them without documentation. Stick to items you can prove with tax returns or bank statements.
Mixing personal and business expenses. If you leased a vehicle and it's legitimately used 100% for business, it's not an add-back—it's a real operating cost. Only add back the portion that's truly discretionary or personal.
Forgetting to normalize. If your business had an unusually bad (or good) year, buyers will ask about it. A smart valuation accounts for a normalized, sustainable earnings level. If you had a one-time spike in revenue or a major customer loss, flag it.
Ignoring industry standards. Different industries have different SDE multiples. A digital agency might sell for 3–4x SDE, while a local service business might be 2–2.5x. Knowing your industry range helps you set realistic expectations.
How to Calculate Your Own SDE
Start with your last two years of tax returns (or your last full year if you're newer). You'll need:
- Your business's net profit (from Schedule C, K-1, or your business tax return).
- A list of all owner compensation (salary, bonuses, distributions).
- A breakdown of personal expenses paid by the business (vehicle, insurance, meals, travel).
- Depreciation and amortization figures (from your tax return).
- Any one-time or unusual expenses from that year.
Add them up, and you've got a rough SDE. But here's the catch: a buyer (or a broker, or a valuation professional) will scrutinize every add-back. If you can't point to a tax return line item or a bank statement, they won't believe it.
Why This Matters When You're Actually Selling
When you list your business, the asking price will be based on SDE, not profit. If you've never calculated it, you might underprice yourself by tens of thousands of dollars—or overprice and never get an offer.
Tools like ExitKit's free business valuation estimate give you an instant SDE-multiple range so you can see what buyers in your industry typically pay. It's a reality check before you commit to a number.
Once you have a kit and are preparing documents for buyers, you'll be walking through your SDE calculation in detail. Buyers will ask about every add-back, so having clean documentation and a clear story around each one is essential.
The Bottom Line
Your net profit is what your business made after all expenses. Your SDE is what a buyer thinks they can make if they buy it. The difference is often substantial, and understanding it is the first step toward a realistic valuation.
If you're serious about selling, calculate your SDE now. Be honest about add-backs, and have your documentation ready. That number will shape every conversation with a potential buyer—and ultimately, the offer you receive.
