Pillar guide
SDE vs EBITDA: how to read a business's earnings
Why small businesses use Seller's Discretionary Earnings, lower-middle-market businesses use EBITDA, which add-backs lenders and QoE analysts actually accept, and how to calculate SDE for a target you're looking at right now.
Last updated: July 21, 2026. Educational only — not legal, tax, lending, or investment advice.
The 30-second version
SDE and EBITDA are two different ways to express a business's earnings. They use the same idea — start from profit, add back things that aren't really operating expenses — but they treat the owner's compensation differently.
- SDE = the total cash benefit to the owner (salary + profit + personal expenses run through the business). It assumes the owner works in the business full-time. Used for small, owner-operated businesses, typically under ~$1M in earnings.
- EBITDA = earnings before interest, taxes, depreciation, and amortization. It assumes the owner is compensated as a regular employee and that salary is a real operating expense. Used for larger, manager-run businesses, typically above ~$1M in earnings.
Because SDE includes the owner's salary and EBITDA doesn't, SDE is always larger than EBITDA for the same business. That's why SDE multiples are lower than EBITDA multiples for comparable-quality businesses — a 3× SDE multiple and a 5× EBITDA multiple can describe similar deals.
When to use which
Use SDE when:
- The current owner works full-time in the business and their compensation is part of what the business produces.
- The buyer will replace the owner as the operator — i.e. you're buying a job plus a return on capital.
- The business's earnings are roughly below $1M per year.
Use EBITDA when:
- The business has a manager in place (or could have one) and the owner's compensation is a real operating expense.
- The buyer will be a more passive owner or will hire a general manager.
- The business's earnings are roughly above $1M per year.
There's no official line — a $900K earnings business with a manager in place might be priced on EBITDA, and a $1.2M earnings owner-operated business might be priced on SDE. The choice is a function of how the business runs, not the dollar amount.
The same business, presented both ways
To make this concrete, here's a small services business with $700K in revenue, one owner working full-time, and no separate manager.
| Line item | Amount |
|---|---|
| Revenue | $700,000 |
| COGS + operating expenses (excl. owner comp, interest, D&A) | $420,000 |
| Owner salary + payroll taxes | $120,000 |
| Interest expense | $8,000 |
| Depreciation & amortization | $22,000 |
| One-time legal fee (settled lawsuit) | $15,000 |
| Personal auto through the business | $6,000 |
Net profit on the tax return: $700K − $420K − $120K − $8K − $22K − $15K − $6K = $109,000.
SDE reconstruction: $109K + $120K (owner comp) + $8K (interest) + $22K (D&A) + $15K (one-time legal) + $6K (personal auto) = $280,000.
EBITDA reconstruction (assuming a replacement manager at $80K): $109K + $120K (current owner comp) + $8K (interest) + $22K (D&A) + $15K (one-time legal) + $6K (personal auto) − $80K (replacement manager) = $200,000.
So the same business is $280K SDE or $200K EBITDA. At a 2.5× SDE multiple, the implied price is $700K. At a 3.5× EBITDA multiple, the implied price is also $700K. The two methods, applied with their typical multiples, can describe the same deal — but only if you use each one correctly [3] .
Common add-backs — what's accepted and what isn't
Add-backs are the heart of SDE and EBITDA reconstruction, and they're where most disagreement between buyer and seller (and between buyer and lender) happens. A good rule of thumb: an add-back is legitimate only if it's truly discretionary, truly non-recurring, or truly personal. If removing the expense would reduce revenue, it's not an add-back.
| How lenders / QoE analysts view it | Typical examples |
|---|---|
| Almost always accepted | Owner salary, owner payroll taxes (FICA, Medicare, SUTA, FUTA), owner health insurance, owner retirement contributions, owner vehicle, owner travel that is clearly personal |
| Sometimes accepted | One-time legal fees (e.g. defending a now-resolved lawsuit), one-time relocation costs, one-time website rebuild, family member salary only if the role will be eliminated post-close, depreciation on a clearly obsolete asset |
| Rarely accepted | Ongoing capex required to maintain revenue (vehicles, kitchen equipment, laundry machines), rent paid to a related party below market, salary of family member doing real work, "one-time" expenses that appear every year under different names, marketing that drives ongoing revenue |
Important: an add-back that the seller claims as "one-time" but appears every year under a different label (e.g. "one-time software upgrade" in 2022, "one-time system migration" in 2023, "one-time platform migration" in 2024) is not one-time. A Quality of Earnings (QoE) review catches this; you should at minimum ask for the prior three years of general-ledger detail and scan for the pattern.
How to challenge an add-back
If you're looking at a listing and the SDE number feels too high, work through the add-backs methodically:
- Ask for the source. Every add-back should trace to a specific line in the tax return or P&L. If it can't, it's invented.
- Ask for the prior three years. A "one-time" expense that appears in multiple years isn't one-time.
- Ask whether removing it would reduce revenue. If the seller added back "marketing" but the marketing drives ongoing customer acquisition, that's not an add-back.
- Ask whether the buyer will bear it personally. If the seller added back their own health insurance and the buyer will also need health insurance, the buyer's cash benefit is overstated.
- Run a lender test. SBA 7(a) lenders reconstruct SDE their own way [2] . If the lender won't accept an add-back, it doesn't matter whether the seller did.
Interactive SDE calculator
Enter the numbers from a target's tax return or P&L. The calculator reconstructs SDE and shows a multiple-implied price range. This is a starting point for buyer analysis — not a valuation, not a lender's number, and not a substitute for a QoE review. See the methodology page for the formula and assumptions.
Reconstructed SDE
$280,000
Implied price at 2.5× SDE
$700,000
Illustrative only — not a valuation, not a loan pre-approval, not a lender's number.
Show the formula
SDE = Net profit
+ Owner salary + payroll taxes
+ Interest
+ Depreciation & amortization
+ One-time, non-recurring
+ Personal expenses
− Non-operating income
Implied price = SDE × MultipleWhere to go next
- Turn your SDE into a realistic price ceiling — Affordability Calculator
- Find targets to run the math on — How to find businesses for sale in New York
- Verify what the seller is telling you — Due diligence checklist
- Move from adjusted earnings to transaction proof — Quality of earnings guide
- See the whole acquisition process end-to-end — How to buy a business in New York
Frequently asked questions
Which should I use — SDE or EBITDA?
Use SDE when the business is owner-operated (typically under ~$1M in earnings) and the owner's compensation is part of the cash flow available to the buyer. Use EBITDA when the business is manager-run (typically above ~$1M in earnings) and the owner's compensation is a real operating expense. The numbers are not interchangeable: SDE will be larger than EBITDA for the same business, so SDE multiples are lower than EBITDA multiples for comparable-quality businesses.
What is an add-back?
An add-back is an expense the seller ran through the business that should be added back to net profit to reflect the true cash flow available to a new owner. Common legitimate add-backs: the owner's salary and payroll taxes, interest expense, depreciation, one-time legal fees, and clearly personal expenses. Add-backs that lenders and QoE analysts challenge: ongoing capex needed to maintain revenue, family members on payroll for real work, 'travel' that's partly personal, and one-time expenses that recur every year under a different name.
Will the SBA lender use my SDE number?
Not exactly. SBA 7(a) lenders reconstruct SDE their own way, typically backing out add-backs they don't accept and applying a debt-service coverage ratio (DSCR) of 1.15–1.25 to determine how much debt the business cash flow can support. Your SDE number is a starting point for the conversation, not the number the lender uses to underwrite.
Is SDE the same as cash flow?
No. SDE is a normalized earnings figure, not a cash-flow figure. It adds back non-cash expenses (depreciation, amortization) and treats the owner's compensation as available cash. Actual free cash flow also accounts for capital expenditures, working-capital changes, and required debt service. A business can show strong SDE and weak cash flow at the same time — common in businesses that need recurring equipment investment.
How do I challenge an add-back I think is wrong?
Ask for the underlying records: the general ledger detail, the receipts, the contracts. If the seller claims an expense is 'one-time,' ask what they spent in the equivalent category in prior years. If the seller claims a personal expense, ask for receipts that show the personal portion. A CPA running a Quality of Earnings review does this systematically; you should at minimum spot-check the largest add-backs.
Looking at a specific target? Get a second set of eyes on the numbers.
A 20-minute call with Jason can tell you whether the SDE reconstruction on your target will survive a SBA lender's review — before you spend on a QoE. Free, no pressure.
Book a free callSources cited on this page
- 1 U.S. Small Business Administration. Buy an existing business or franchise. https://www.sba.gov/business-guide/plan-your-business/buy-existing-business-or-franchise (retrieved 2026-07-21) — Mentions capitalized earnings, excess earnings, cash flow, tangible assets, and intangible assets valuation methods at a high level.
- 2 U.S. Small Business Administration. 7(a) loan program (lender-facing). https://www.sba.gov/partners/lenders/7a-loan-program (retrieved 2026-07-21) — Lender underwriting standards; SBSS scoring.
- 3 International Business Brokers Association. Business Reference Guide. https://www.ibba.org/ (retrieved 2026-07-21) — Industry-standard reference for rule-of-thumb multiples. Not cited for specific transaction amounts; only as the named authority for the concept.