You hear both terms constantly: SDE and EBITDA. Brokers use them interchangeably in conversation, but they produce different numbers and different multiples. Mix them up and you might think your business is worth $2.5 million when the market says $1.8 million, or vice versa. For Main Street business owners in Pennsylvania, Maryland, and Delaware, knowing which measure applies to your business, and why, is foundational to any sale or valuation conversation.

What SDE measures

Seller's Discretionary Earnings (SDE) answers one question: how much total financial benefit does a single full-time owner-operator get from this business in a year?

You start with net profit and add back everything that benefits the owner personally: owner salary, benefits run through the business, depreciation, interest, taxes, and personal or one-time expenses. The result is the total pot available to one working owner.

SDE is the standard earnings measure for businesses where the owner works in the business daily, typically those under $1 to $2 million in earnings.

What EBITDA measures

EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) answers a different question: how much does the business earn before financing and accounting decisions, assuming a manager, not the owner, runs operations?

EBITDA starts with net profit and adds back interest, taxes, depreciation, and amortization. It does not add back an owner salary, because EBITDA assumes the business already pays someone to manage it. If the owner works in the business and takes a below-market salary, EBITDA will be lower than SDE.

EBITDA is the standard for larger businesses with professional management, typically those above $1 to $2 million in earnings.

Side-by-side comparison

Consider a Harrisburg-area distribution company with the following annual figures:

  • Net profit (per tax return): $280,000
  • Owner salary: $150,000
  • Depreciation: $45,000
  • Interest: $18,000
  • Owner health insurance and vehicle: $22,000

SDE calculation: $280,000 + $150,000 + $45,000 + $18,000 + $22,000 = $515,000

EBITDA calculation: $280,000 + $45,000 + $18,000 = $343,000 (no owner salary add-back; the $150,000 salary is already embedded in the expense structure)

Same business, same year, $172,000 difference between the two measures. If someone quotes a 4x multiple without specifying which earnings base, the confusion is worth nearly $700,000.

Which one applies to your business

The choice depends on size, management structure, and who is buying.

  • Under $1M in earnings, owner-operated: SDE. Almost always. Buyers and brokers in the Main Street market will value on SDE.
  • $1M to $2M in earnings, transitioning to management: Either, depending on the buyer. Individual buyers who plan to work in the business may think in SDE. Financial buyers and larger acquirers will use EBITDA.
  • Over $2M in earnings, management team in place: EBITDA. The business is large enough that a buyer assumes they will hire or retain management.
  • Owner plans to leave at closing: SDE is less relevant because the buyer must replace the owner's labor. The valuation should account for a market-rate manager salary, which pushes toward an EBITDA-like analysis.

Why multiples differ between SDE and EBITDA

This is where the confusion compounds. SDE multiples and EBITDA multiples are not interchangeable.

Typical ranges for Main Street and lower-middle-market businesses:

  • SDE multiples: 2.0x to 4.0x, with most deals landing between 2.5x and 3.5x.
  • EBITDA multiples: 3.0x to 6.0x, with most deals landing between 4.0x and 5.0x.

EBITDA multiples are higher because the earnings base is smaller. A business with $500,000 in SDE at 3x is worth $1.5 million. The same business might show $350,000 in EBITDA at 4.3x, also $1.5 million. The math converges, but only if you apply the right multiple to the right number.

Common mistakes owners make

Applying an EBITDA multiple to SDE

An owner hears that HVAC companies sell for 4x and applies it to their $400,000 SDE, expecting $1.6 million. But the 4x figure is an EBITDA multiple from larger, managed companies. The SDE multiple for their business is closer to 3x, or $1.2 million. The $400,000 gap kills deals.

Ignoring the manager replacement cost

An owner who works 60 hours a week and takes $80,000 in salary may show strong SDE. But a buyer who will not work in the business must hire a manager at $120,000 to $150,000. That replacement cost reduces what the buyer can pay.

Mixing measures in the same conversation

Quoting SDE in the marketing package but negotiating on an EBITDA basis, or vice versa, creates confusion and erodes buyer trust.

Adjusted EBITDA: the middle ground

For businesses in the $1 to $3 million earnings range, brokers often use adjusted EBITDA, which starts with EBITDA and adds back legitimate one-time or owner-specific expenses, similar to SDE add-backs but without adding back the full owner salary.

Adjusted EBITDA is a compromise that works when the owner is partially in the business and partially overseeing it. Your broker or appraiser should specify which measure they are using and show the calculation.

Always ask: multiple of what? If the person quoting a number cannot show you the earnings calculation behind it, the number is not useful.

Standard advice in business valuation

Whether your business is valued on SDE, EBITDA, or adjusted EBITDA, the underlying question is the same: how much does this business earn, and how reliably will those earnings continue after you leave? The measure is just the language buyers use to answer that question.