What is the difference between SDE and EBITDA?
SDE (Seller's Discretionary Earnings) adds back owner compensation and discretionary owner expenses to EBITDA, while EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) does not. The key mathematical relationship is: SDE = EBITDA + owner compensation + discretionary owner expenses.
What SDE measures and when it's used
SDE is typically used for Main Street businesses valued under $1–2 million. It starts from net income and adds back interest, taxes, depreciation, and amortization — then goes further by adding back the owner's salary, health insurance, personal vehicle expenses, family member wages above market rate, personal travel, and other discretionary owner perks.
SDE assumes a single owner-operator will run the business after the sale. The buyer is expected to either work in the business themselves or replace the owner's labor by hiring management at market rates. Business brokers working with Main Street transactions commonly use SDE as the primary earnings metric.
Typical SDE multiples for small businesses range from 1.5x to 4x depending on industry and growth trajectory.
What EBITDA measures and when it's used
EBITDA is the standard metric for lower middle market businesses typically valued above $2–5 million. It adds back interest, taxes, depreciation, and amortization to net income, but does not add back management salaries — it assumes professional management will be retained or replaced at market rates.
EBITDA-based valuations assume the buyer is acquiring a cash flow stream managed by others, not a job. M&A advisors working with lower middle market deals commonly default to EBITDA. Businesses with multiple locations, professional management teams, or institutional buyer interest typically use EBITDA even below the $5 million threshold.
EBITDA allows for cleaner comparisons across businesses of different ownership structures because it normalizes for management costs.
Typical EBITDA multiples for lower middle market businesses range from 3x to 7x depending on sector, growth, and competitive dynamics.
Key differences in calculation
Both SDE and EBITDA start from net income and add back interest, taxes, depreciation, and amortization. The distinction lies in what happens next:
- SDE adds back owner compensation, owner benefits, and discretionary expenses because it assumes a single owner-operator will run the business.
- EBITDA does not add back management salaries because it assumes professional management will be retained or replaced at market rates.
This difference has a direct impact on the earnings base. Because SDE includes add-backs that EBITDA does not, SDE is a larger number for the same business. This means EBITDA multiples are typically lower than SDE multiples for comparable businesses — a 3x SDE multiple and a 5x EBITDA multiple may yield similar enterprise values if owner compensation is substantial.
Which metric applies to your business size
The transition zone between SDE and EBITDA usage typically occurs in the $1–5 million transaction value range. Below $1 million, SDE is almost universal. Above $5 million, EBITDA dominates. In between, the choice depends on the business's operational structure more than size alone.
If you work full-time in the business, draw a salary, and buyers are likely to replace your role directly, SDE is the appropriate metric. If you employ a general manager, operate multiple locations, or expect institutional or strategic buyer interest, EBITDA is more appropriate regardless of size.
How the choice affects valuation multiples
Using the wrong metric can create valuation confusion. An advisor quoting a "3x multiple" using SDE and another quoting "5x" using EBITDA may be describing the same enterprise value if the owner's compensation is significant.
Buyers evaluating an SDE-based business must budget for replacing the owner's labor, either by working in the business themselves or hiring management at market rates. This reality is baked into SDE multiples — they reflect the expectation that the buyer will step into an operational role.
Canadian tax treatment does not directly favor one metric over the other — both are pre-tax earnings measures used for valuation purposes, not tax reporting.
This article is for informational purposes only and does not constitute financial, legal, or business advice. Every business sale is different. Before making decisions about valuation, pricing, or engaging an advisor, consult a qualified professional familiar with your specific situation.
Ready to understand what your business is worth? Connect with valuation-focused M&A advisors who can walk you through the right earnings metric for your situation.