How to Value a Small Business the Right Way

SDE vs. EBITDA: Understanding the Difference

The two most common earnings metrics used to value small businesses are Seller's Discretionary Earnings (SDE) and EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization). Knowing which to apply — and when — is the first step toward accurate valuation.

SDE is the preferred metric for businesses under $5 million in revenue where the owner is an active operator. SDE starts with net income and adds back: the owner's salary and benefits, interest expense, taxes, depreciation and amortization, and any personal or non-recurring expenses the owner ran through the business. The result represents the total economic benefit available to a single owner-operator. SDE is the right lens when the buyer will replace the seller as the working owner.

EBITDA is used for larger businesses — typically $5M+ revenue — where there's a professional management team and the buyer is acquiring a going concern rather than a job. EBITDA does not add back owner salary because a market-rate CEO salary would be required regardless of who owns the company. EBITDA is the more conservative, investor-grade metric.

Using the wrong metric leads to dramatically different valuations. A $300,000-per-year business where the owner pays himself $150,000 and there's $50,000 in owner-benefit add-backs has an SDE of $500,000 — but an EBITDA of $300,000 after backing out those perks. Applied at 3x, that's a $600,000 valuation gap. This is where many deals break down.

Revenue Multiples: A Weak Proxy

Revenue multiples are sometimes cited for businesses in sectors with predictable margin structures — SaaS, professional services, certain franchises. For most small local businesses, revenue multiples are a poor indicator of value because margins vary so dramatically. Two restaurants with identical revenue can have vastly different profitability based on labor costs, food costs, and lease terms. A cleaning service with $1M revenue might net $200K or $80K depending on whether it's staffed with employees or subcontractors.

Use revenue multiples only as a rough sanity check against earnings-based approaches. If your earnings-based valuation implies an extremely high or low revenue multiple compared to sector benchmarks, investigate why before proceeding.

Asset-Based Valuation

For asset-heavy businesses — laundromats, gas stations with real estate, car washes, businesses with significant equipment — asset-based valuation provides an important floor and sometimes a ceiling. This approach appraises the tangible assets: equipment at fair market value, real estate at appraised value, inventory at cost or current market, vehicles, and other tangibles. Net asset value is then compared against the earnings-based value.

When earnings-based value exceeds net asset value, the difference represents "goodwill" — the premium buyers pay for cash flow, customer relationships, and business systems. When asset value equals or exceeds earnings value, the business may be worth more in liquidation than as a going concern — a warning sign that deserves serious scrutiny.

Common Seller Add-Backs

Before applying a multiple to stated earnings, sellers typically "normalize" the financials by adding back non-recurring or personal expenses:

• Owner salary above market rate: If the owner pays himself $300,000 but a market-rate manager would cost $120,000, the $180,000 difference is a legitimate add-back.
• Personal vehicle expenses: Car payments, insurance, and fuel run through the business but used personally.
• Family member salaries: Compensation paid to relatives who may not continue with the business post-sale.
• One-time expenses: Legal fees from a settled lawsuit, equipment repairs that won't recur, moving costs.
• Non-cash charges: Depreciation and amortization always add back in SDE/EBITDA calculation.
• Owner health insurance and retirement contributions: Personal benefits run through the company P&L.

Buyer Adjustments to Counter-Normalize

Buyers should also adjust earnings in their favor before applying a multiple. These deductions are just as legitimate as seller add-backs:

• Normalized capital expenditure: If the seller has deferred equipment replacement, the buyer will face near-term capex. Annualize the expected cost and deduct it.
• Market-rate management salary: If the new owner won't run the business personally, the cost of a general manager must be deducted before applying a multiple.
• Lease adjustment: If the current lease is below market and will renew at higher rates, the additional cost is a real drag on future earnings.
• Customer concentration risk: If 40% of revenue comes from one customer, apply a risk discount. Loss of that customer changes the entire multiple calculus.

Why Professional Appraisal Beats Online Calculators

Online valuation calculators apply generic multiples to self-reported numbers. They do not adjust for lease quality, local market conditions, seller concentration risk, equipment condition, or pending litigation. A Certified Business Appraiser (CBA) or Certified Valuation Analyst (CVA) conducts site visits, scrutinizes financials, and produces a defensible report. For deals over $500,000, professional appraisal typically costs $3,000–$8,000 — a small fraction of the value difference a qualified appraiser may identify.