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Understanding Seller’s Discretionary Earnings (SDE): The True Measure of a Small Business’s Profitability

Written by Bill Frierson | Aug 8, 2025 12:45:00 PM

When evaluating the financial performance of a small business, one of the most critical metrics used by business buyers, brokers, and lenders is Seller’s Discretionary Earnings (SDE). But what exactly is SDE, why does it matter, and how is it calculated?

 

What is Seller’s Discretionary Earnings?

Seller’s Discretionary Earnings is a measure of the total financial benefit a full-time owner-operator derives from a business in a single year. It represents the business’s true cash flow to a hands-on owner and is often used to determine the business’s value in a sale. 

SDE is particularly important in small business transactions, where the owner’s involvement is deeply tied to the company’s operations and profitability. Unlike EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization), which is more common in middle-market and larger company valuations, SDE includes the owner’s salary and certain discretionary expenses.

 

Why SDE Matters

SDE is crucial for both buyers and sellers:

  • Buyers want to understand how much income they can expect to earn from the business if they replace the owner and operate it themselves.

  • Sellers use SDE to justify their asking price and demonstrate the business’s earning potential.

Lenders, particularly SBA lenders, also use SDE to determine whether the business generates enough cash flow to cover debt payments after acquisition.

 

How SDE is Calculated

SDE starts with net income (the “bottom line” from the tax return or P&L statement), and then adds back certain expenses that are not essential to the business or are considered “discretionary.” These typically include:

  1. Owner’s Salary or Compensation

  2. Payroll Taxes on the Owner's Wages

  3. Owner’s Perks or Discretionary Expenses

    • Personal vehicle expenses

    • Travel not essential to business

    • Meals and entertainment

    • Health insurance for the owner

  4. Non-Cash Expenses

    • Depreciation and amortization

  5. One-Time or Non-Recurring Expenses

    • Legal fees for a lawsuit

    • Unusual repairs or equipment purchases

  6. Interest Expense

    • Since buyers will bring their own capital or debt structure

 

SDE Formula:

SDE = Net Profit + Owner’s Salary + Interest + Depreciation + Amortization + Discretionary and Non-Recurring Expenses

 

A Quick Example

Suppose a business has the following:

  • Net Profit: $100,000

  • Owner’s Salary: $75,000

  • Depreciation: $10,000

  • Interest: $5,000

  • One-Time Legal Fees: $7,000

  • Personal Car Expenses Run Through the Business: $3,000

SDE = $100,000 + $75,000 + $10,000 + $5,000 + $7,000 + $3,000 = $200,000

This $200,000 is the total earnings available to a new owner-operator.

 

Common Mistakes When Calculating SDE 

  • Including normal business expenses as add-backs (only discretionary or non-essential ones should be added back)

  • As the business owner, it is up to you to prove the add-backs during due diligence, make sure you have good documentation, and a clear presentation of those expenses

 

SDE and Business Valuation

Most small businesses (under $5 million in revenue) are valued based on a multiple of SDE, depending on the industry, size, risk, growth potential, and other factors. For example:

  • A business with $200,000 in SDE might sell for 2.5x – 3.0x SDE, or $500,000 to $600,000.

The cleaner and more justifiable the SDE calculation, the easier it is to attract serious buyers and close a deal.

 

Final Thoughts

Understanding and accurately calculating Seller’s Discretionary Earnings is essential when preparing to sell or buy a small business. It not only helps determine valuation but also gives both parties a realistic view of the business’s earning potential. At EDGE Business Advisors, we work with business owners and buyers to ensure SDE is clearly presented and properly analyzed, so informed decisions can be made and transactions close with confidence.

 

Need help determining your business’s SDE?

Schedule a confidential consultation with our team today.

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