How to Value a Small Business: SDE, EBITDA, and Market Multiples Explained

By Charlie Brennan • Published June 22, 2026 • Updated June 22, 2026 • Educational content only — not financial, legal, or tax advice.

Every business acquisition starts with the same question: is this price fair? Sellers anchor to an asking price; buyers anchor to what the cash flow can actually support. The gap between those two anchors is where deals get made — or fall apart.

This guide walks through the two methods that drive small business pricing — SDE and EBITDA — explains how to normalize earnings with add-backs, and gives you multiple ranges by business type so you can benchmark any asking price in under ten minutes.

The Income Approach: What Small Businesses Are Actually Sold On

Small businesses aren't priced like public stocks. There's no P/E ratio, no analyst consensus, no forward revenue multiple. They're priced on what the business puts in the owner's pocket. The metric that captures that is either SDE or EBITDA — and which one applies depends entirely on the size of the business.

SDE (Seller's Discretionary Earnings)

SDE is the standard for businesses below roughly $2M in sale price. The formula:

SDE = Net profit + Owner salary + Owner perks + Depreciation/amortization + Interest + One-time/non-recurring expenses

The logic: SDE represents the total economic benefit available to a single working owner. You add back the owner's salary because a new owner will pay themselves from that same pool. You add back perks (personal vehicle, cell phone, travel, family payroll) because they're discretionary. You add back one-time expenses because they won't recur.

Example: A landscaping business with $80K net profit, a $120K owner salary, $15K in personal vehicle expenses run through the business, and $10K in equipment repairs from a one-time storm = $225K SDE.

EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization)

EBITDA is used for larger businesses ($2M+ asking price) where a new owner will hire a manager rather than work in the business. The formula:

EBITDA = Net profit + Interest + Taxes + Depreciation + Amortization

Unlike SDE, EBITDA does not add back the owner's salary — because a management-layer salary is a real cost the buyer will continue to pay. EBITDA tends to produce a lower earnings number than SDE, but commands higher multiples because the business runs without the owner.

Add-Backs: The Most Negotiated Number in a Deal

Add-backs convert a tax-minimized P&L into a real picture of what the business earns. Sellers maximize them. Your job is to scrutinize every single one.

Legitimate add-backs

• Owner's salary and any family member salaries above market rate
• Personal expenses run through the business (vehicle, insurance, phone, travel)
• One-time legal or professional fees
• Non-recurring repair or capital expenditure
• Depreciation and amortization (non-cash charges)
• Interest on debt that will be retired at closing

Questionable add-backs — push back here

• "Owner's time" applied to unpaid work — fine if documented, but how many hours and at what rate?
• Marketing or travel expenses claimed as personal — get the invoices
• Recurring "one-time" expenses (if it happened in three of the last five years, it's recurring)
• Above-market rent paid to an owner-controlled entity — verify fair market rent, and confirm the lease transfers

The cleanest process: get three years of tax returns and three years of P&Ls, then reconcile them line by line. Gaps between what was filed with the IRS and what the P&L shows aren't a clerical curiosity — they need a direct, documented explanation before you accept a single add-back.

Market Multiples: What Buyers Are Actually Paying

Once you have a credible SDE or EBITDA figure, multiply it by the market multiple for that industry and size tier. Multiples aren't arbitrary — they're driven by business quality, growth trajectory, customer concentration, and how easy it is to buy this type of business with debt right now.

SDE multiples (small businesses, typically <$2M asking price)

EBITDA multiples (mid-market, $2M—$10M EBITDA)

These ranges are deliberately wide. A business at the top end has recurring revenue, no single customer over 20% of sales, documented systems that run without the owner, and a clear growth trend. A business at the bottom has the opposite — and deserves the lower price.

What Pushes a Multiple Up or Down

Multiple expanders: recurring or contracted revenue, no single customer over 20% of revenue, documented processes (the business runs without the owner), clean books, growing revenue trend, defensible market position, transferable customer relationships.

Multiple compressors: heavy owner dependence, one or two customers representing most of revenue, seasonal or lumpy cash flow, deferred maintenance, a lease that can't transfer, declining revenues, thin margins, unclear add-backs.

Owner dependence is the biggest single compressor. If the business runs because of the seller's relationships, reputation, or daily presence, you're not buying a company — you're buying a job with debt attached. That's okay, but only at a price that reflects the risk.

The Asset Approach: A Sanity Check, Not a Primary Method

For service businesses, the income approach is the right primary method. For asset-heavy businesses — manufacturing, distribution, real estate — the asset approach gives you a floor: what would you recover if you liquidated everything today? If the income-based value is below that liquidation floor, something is off with either the earnings or the price.

The asset approach is also practical during due diligence. The AcquireCalc deal calculator lets you input each owned asset class and model how it can fund the acquisition itself — converting equipment, inventory, and receivables into closing cash while you pay fair market value for the business.

The Market Comps Approach: What Did Similar Businesses Sell For?

Comparable transactions anchor a valuation when you can find them. BizBuySell, BizQuest, and the IBBA transaction database publish median multiples by industry and size tier every year. But honestly, a 30-minute conversation with a broker who does 20 deals a year in your target industry beats any database. They know what's actually trading and why.

One thing to watch: normalize for size. A $500K SDE business trades at a lower multiple than a $2M SDE business in the same industry. The buyer pool shrinks as deals get bigger, and larger businesses tend to have better systems and less owner dependence — both of which support a higher multiple.

Putting It Together: A Quick Valuation Example

A residential cleaning company with 12 employees in a mid-size metro:

• Net profit (from tax return): $95,000
• Owner salary: $85,000
• Owner vehicle expense: $12,000
• One-time legal fee: $8,000
• SDE: $200,000

Market multiple range for professional services: 2.0x—3.5x. This business has 8 years of operating history, strong Yelp reviews, and 60% repeat customers — call it 2.8x.

Estimated fair market value: $200,000 × 2.8 = $560,000

If the seller is asking $650,000, that's a 3.25x implied multiple — above the midpoint, but not outrageous. Before paying it, verify every add-back with tax returns, confirm the lease transfers on a sale, and model whether the cash flow actually covers the debt service. A $90K gap between asking price and fair market value is worth fighting for in terms, not just accepting.

Frequently Asked Questions

What is SDE and how is it used to value a small business?

SDE (Seller's Discretionary Earnings) is the total economic benefit a single working owner takes from the business: net profit plus salary, perks, depreciation, amortization, interest, and any genuine one-time expenses. For businesses priced under roughly $2M, buyers multiply SDE by an industry-specific number — typically 1.5x to 4x — to get a fair price. The multiple rises when earnings are recurring and systematic; it falls when they depend on the owner showing up every day.

What is the difference between SDE and EBITDA for business valuation?

The key difference is the owner's salary. SDE adds it back, because a buying owner will pay themselves from that same pool. EBITDA doesn't, because a larger business needs a hired manager — and that salary is a real, permanent cost the buyer will keep paying. SDE fits owner-operated businesses under roughly $2M. EBITDA is the right metric when the new owner won't be working in the business day-to-day.

What are add-backs and which ones are legitimate?

Add-backs convert a tax-minimized P&L into a real picture of owner earnings. Legitimate ones: owner salary and perks, one-time legal or repair costs, depreciation, interest on debt retiring at closing. Push back on recurring expenses mislabeled as "one-time," unverified owner-time valuations, and above-market rent paid to an entity the owner controls. Reconcile three years of tax returns to the P&L before accepting any add-back — that's where inflated numbers surface.

What multiple should I use to value a small business?

SDE multiples generally run 1.5x–2.5x for local service and retail businesses, 2.0x–3.5x for professional services like landscaping and cleaning, and 2.5x–4.5x for digital and e-commerce businesses. Recurring revenue, low customer concentration, documented systems, and a clear growth trend push a multiple toward the top of its range. Heavy owner dependence, seasonal cash flow, and fuzzy add-backs push it toward the bottom.

How do I sanity-check a business's asking price?

Divide the asking price by your verified SDE to get the implied multiple. Then compare it to market comps for that industry and size tier — BizBuySell and IBBA both publish median multiples annually. If the implied multiple is meaningfully above market, one of two things is true: the add-backs are inflated, or the seller genuinely believes the business is above average. Either way, that belief needs documentation before you pay for it.

Use the Calculator to Model the Deal

Once you have a valuation you trust, model the deal structure: how much will the seller finance, what can you pull from the business's balance sheet, and what does your actual cash at closing look like? That's what the AcquireCalc deal calculator does — enter your numbers and see the full picture in one place.

Sources & Further Reading

• BizBuySell Insight Report — quarterly transaction data on small business sale prices and multiples by industry
• SBA: Buying an Existing Business — government guidance on the acquisition process and financing
• International Business Brokers Association (IBBA) — industry standards and annual transaction research
• IRS: Selling Your Business — tax treatment of business sales and asset allocation rules