SDE vs EBITDA: which multiple actually applies to your business.

Two owners with identical tax returns can walk away from a sale with very different proceeds. The reason almost always sits in the earnings line: whether buyers underwrote on Seller's Discretionary Earnings or on EBITDA, and which add-backs survived the buyer's Quality of Earnings analysis. This article explains the difference and shows the threshold where the conversation flips from one to the other.

Definitions, in one paragraph each

Seller's Discretionary Earnings, or SDE, is the cash flow available to a single owner-operator who works in the business. It is built up from net income on the tax return: add back interest, taxes, depreciation, and amortization, then add back one owner's compensation and benefits (because the owner is the operator), and finally add back legitimate one-time and discretionary expenses. SDE answers the question, what does this business earn for the person running it?

EBITDA, or earnings before interest, taxes, depreciation, and amortization, is the cash flow available to a corporate buyer who hires a market-rate manager to run the business. It starts from the same place SDE does, but it deducts a fair-market salary for the role the owner is currently filling. EBITDA answers a different question, what does this business earn for a buyer who is not also the operator?

The two numbers diverge by roughly one owner-salary's worth of cash flow, which on a $3M revenue business often means $150K to $250K. That gap, multiplied by whatever multiple applies, is real money in your settlement statement.

The inflection point sits around $1M to $2M of normalized earnings

Up to roughly $1M of normalized earnings, the buyer pool is dominated by individual buyers, SBA-financed acquirers, and small search funds. They are buying themselves a job, and they underwrite to SDE because they will be the operator. Above $2M of normalized earnings, the buyer pool tilts toward private equity, family offices, and strategic acquirers. They are buying a portfolio asset, and they underwrite to EBITDA with the operator salary baked in.

Between $1M and $2M, you sit in a transition zone where some buyers offer on SDE and others on EBITDA. Almost every Quality of Earnings firm will reframe a deal in that zone from SDE to EBITDA during diligence; almost every individual buyer working through SBA financing will reframe in the other direction. The mismatch between which earnings number the seller used to set the asking price and which one the buyer is offering against is a leading cause of late-stage deal failure.

The owner's salary problem

Almost every owner-operator pays themselves a salary that is wrong for valuation purposes. Some take below-market compensation to keep more cash inside the business for tax efficiency. Some take above-market compensation because the business has been their primary wealth-building vehicle and salaries were never benchmarked. Either way, the tax return understates or overstates real economic earnings.

A defensible normalization replaces the actual owner compensation with a market-rate salary for the role the owner is filling. For a $3M revenue HVAC company, the operator role typically benchmarks at $150K to $200K plus 10% to 20% in benefits. If the owner pays themselves $80K, the normalization adds back the gap; if the owner pays themselves $400K, the normalization subtracts the gap. The point is not the direction; the point is that EBITDA without a normalized operator salary is not EBITDA, and buyers will adjust it during diligence regardless.

Add-backs buyers accept, and add-backs buyers reject

The most contested territory in any sale-prep conversation is the add-back list. Sellers and their brokers want to maximize normalized earnings; buyers and their Quality of Earnings advisors want to minimize them. The settled middle ground is reasonably well-defined and worth knowing in advance.

How a QofE firm tests every add-back

A Quality of Earnings analysis, or QofE, is the buyer-side audit of your normalized-earnings story. A national QofE firm typically charges $25,000 to $100,000 for a private-business analysis and produces a report that walks line-by-line through every add-back on the seller's offering memorandum. For each, the firm asks four questions: Is it documented in the accounting system? Is it consistently characterized over the trailing twelve months? Will the cost recur for the next owner? Is the substitute cost (a manager salary, an arms-length rent, a market-rate insurance premium) at fair market value?

"Owners are almost always surprised by how much of their add-back list gets reduced in QofE. The fix is not to add fewer add-backs; it is to document every one of them properly, at the time you incur them, on the way to the sale."

Sara F. Gonzalez, CPA · Managing Partner, KGOB

The owners who do best in QofE prepared their books two years in advance, ran a "sell-side" QofE on themselves six months before going to market, and arrived at the buyer's QofE with a documented answer to every line. The owners who do worst arrived with a clean tax return, a hopeful add-back list, and no documentation. The math is unforgiving in the second case.

What "Adjusted EBITDA" means in an LOI versus at closing

Letters of intent almost always quote a multiple on "Adjusted EBITDA" without defining the adjustments. That ambiguity is intentional on the buyer's side. By the time the working-capital target and the final QofE are settled, the Adjusted EBITDA number used at closing is frequently 5% to 15% lower than the number that was on the LOI. The multiple is the same; the EBITDA shrank.

Two pieces of preparation defend against this. First, the seller should run their own pre-LOI normalized-earnings analysis, documented and footnoted, and use that number as the basis for any LOI conversation. Second, the seller's representation in the definitive agreement should reference an exhibit with each add-back enumerated, so that any disputed item at closing is a defined object, not a moving target.

Why your tax return understates your value, and how to stop apologizing for it

Almost every owner-operated business presents worse on the tax return than it actually performs. The reason is structural: every dollar of taxable income is a dollar of cash tax for the owner, so the rational tax-management posture is to deploy expenses against income wherever the tax code permits. That is not aggressive; that is what tax professionals are paid to do.

The translation problem at sale is that the buyer is looking at the tax return and the seller is talking about the real economic earnings. The bridge between the two is the normalization. A defensible normalization, signed by a CPA, gets you to the number the business actually earns; a defensible Quality of Earnings exercise gets a buyer comfortable with that number. The work is not embarrassing; it is the standard practice in every well-run sale process.

Where your business lands on the SDE-to-EBITDA continuum, and what to do about it

Three quick tests put your business on the continuum. First, what is your trailing-twelve-month net income plus owner comp plus interest, taxes, depreciation, and amortization? That is your SDE. If it is under $1M, almost every realistic buyer is in the SDE world. Second, replace your compensation with a market-rate manager. The result is your EBITDA. If it is above $2M, you are firmly in the EBITDA world. Third, if you are between $1M and $2M, you are in the transition zone, and the work of preparation is largely about which side you want to land on at sale.

Brief 1 in this library covers the broader valuation primer. Brief 3 covers the three approaches that produce defensible multiples. Brief 29 covers the working-capital and escrow mechanics that determine what reaches your account after closing. Together with this brief, those four pieces form the core literacy every owner needs before the first conversation with a banker.