Ask three business brokers what a small business is worth and you'll get five answers. That's not because valuation is art—it's because the right method depends on the size of the business, the buyer pool, the industry, the growth trajectory, and whether the owner works in the business or on it. A $3M-revenue plumbing company is not valued the same way as a $3M-revenue SaaS startup, even though both are "small businesses."
This guide walks through the four valuation methods used for small businesses, the multiples that apply in different segments, the factors that push a multiple up or down, and concrete steps to raise valuation in the 12–24 months before a sale.
The four valuation methods
Most small businesses are valued using one (or several) of these approaches. The right one depends on the size and nature of the business.
- SDE multiples—for owner-operated businesses under $5M revenue.
- EBITDA multiples—for mid-market businesses with professional management.
- Revenue multiples—for high-growth businesses, often tech or subscription.
- Asset-based—for asset-heavy businesses or those with minimal earnings.
Method 1: Seller's Discretionary Earnings (SDE) multiples
SDE is the total financial benefit a single owner-operator receives from the business. It starts with net profit and adds back: the owner's salary and benefits, personal expenses run through the business, depreciation, interest, and one-time or non-recurring expenses.
SDE = Net profit + Owner salary + Owner benefits + Personal expenses + Depreciation + Interest + One-time expenses
Why SDE matters for small business
For businesses under $5M revenue where the owner is the primary operator, net income alone dramatically understates the business's true earning power. A business showing $80K net profit might actually produce $350K in SDE once owner salary ($150K), health insurance ($20K), vehicle ($15K), travel ($10K), depreciation ($50K), and one-time expenses ($25K) are added back.
The buyer isn't just buying a profit stream—they're buying a job, plus a return on capital. SDE captures both.
SDE multiples by business type
- 1.5–2.5x SDE: businesses with high owner dependence, declining revenue, customer concentration, or limited growth potential.
- 2.5–3.5x SDE: stable, profitable businesses with diversified customer base, 3+ years of consistent financials, and systems in place.
- 3.5–4.5x SDE: strong growth, recurring revenue, well-documented processes, transferable customer relationships.
- 4.5x+ SDE: rare; exceptional businesses with strong moats, high growth, and minimal owner dependence.
Example
An HVAC company with $1.8M revenue and $280K SDE, growing 8% per year with a 3-year service contract base, would likely value at 3.0–3.5x SDE, or $840K–$980K plus assumed equipment value.
Method 2: EBITDA multiples
For businesses above $5M revenue—or smaller businesses with professional management where the owner isn't operationally involved—EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) is the standard. EBITDA is similar to SDE but does not add back owner compensation, because the buyer will need to pay a replacement executive.
EBITDA = Net profit + Interest + Taxes + Depreciation + Amortization
EBITDA multiples by business size and type
- $1M–$5M EBITDA: 3–5x typical. Smaller mid-market, private equity and search fund buyers.
- $5M–$10M EBITDA: 5–7x. Attracts lower middle-market PE.
- $10M–$50M EBITDA: 7–10x. Middle-market PE and strategic buyers.
- Above $50M EBITDA: 10–15x+. Strategic premium, public company comparables.
Adjusted EBITDA
Buyers expect "adjusted EBITDA" presentations that add back one-time expenses, litigation costs, non-arm's-length transactions, and excess owner compensation above market rate for a replacement CEO. Expect the buyer's due diligence to challenge every add-back—have documentation ready.
Example
A regional logistics company with $12M revenue and $2.5M EBITDA, growing 12% per year with diversified customers, would likely value at 5–6x EBITDA, or $12.5M–$15M.
Method 3: Revenue multiples
Revenue multiples value a business on top-line revenue rather than profitability. They're typically used for high-growth businesses where current profitability understates future potential—SaaS startups, tech companies, and pre-profit businesses with strong unit economics.
Valuation = Revenue × Multiple
Revenue multiple ranges
- 0.5–1.5x revenue: low-growth services, agencies, consultancies (often valued on SDE/EBITDA instead).
- 2–5x revenue: growing SaaS, software, tech-enabled services with strong unit economics.
- 5–10x revenue: high-growth SaaS (50%+ growth), defensible moats, large TAM.
- 10–20x+ revenue: venture-scale SaaS with category-leading growth and retention.
Revenue multiples only make sense when growth is high, gross margins are strong (60%+), customer retention is excellent (95%+ net revenue retention), and there's a clear path to future profitability. Apply revenue multiples to a slow-growth, low-margin business and you'll wildly overvalue it.
Method 4: Asset-based valuation
Asset-based valuation calculates the value of the business's tangible and intangible assets, minus liabilities. It's used when earnings are weak or inconsistent, or when the business is primarily a vehicle for holding assets (real estate holding companies, equipment-heavy businesses, distressed businesses).
Two flavors:
- Book value: assets at carrying value on the balance sheet. Rarely reflects market value because depreciation understates true asset worth.
- Liquidation value: what assets would fetch if sold individually, often at discount. A floor valuation for distressed businesses.
Most going-concern businesses are worth more than their asset value—but asset value is the floor below which no rational seller should accept.
What affects the multiple
Within any method, the multiple moves based on business quality. Here are the factors buyers weigh:
Industry
Some industries command structurally higher multiples: software, healthcare services, recurring-revenue models. Lower multiples: construction, restaurants, retail, anything cyclical or low-margin.
Growth rate
A business growing 20%+ per year typically commands a 1–2 turn premium over a flat-growth peer. Buyers pay for momentum.
Recurring revenue
Subscription, service contracts, and re-order relationships reduce customer acquisition cost over time. A business with 70% recurring revenue often gets a 1–2 turn premium over a project-based business with identical financials.
Customer concentration
If one customer is more than 25% of revenue, buyers discount the valuation or require earn-outs. If no customer exceeds 10%, that's a positive signal. Concentration is one of the largest silent valuation killers.
Owner dependence
If the business depends on the owner's personal relationships, technical skills, or daily presence, expect a 20–40% valuation discount—or a requirement that the seller stays on for 1–3 years post-sale with an earn-out tied to performance.
Documented systems
Standard operating procedures, written training materials, documented customer lists, and CRM data make a business transferable. Lack of documentation signals "the business is in the owner's head"—a risk buyers price in.
Financial cleanliness
Audited or reviewed financials command higher multiples than compiled or internal statements. Mixing personal and business expenses, weak bookkeeping, or aggressive tax positions that depress reported earnings all reduce buyer confidence.
Market conditions
Cost of capital, sector sentiment, and M&A activity all move multiples. Software multiples in 2021 were 2–3x what they were in 2023. Sellers cannot control timing—but they can choose when to sell.
How to increase valuation before selling
If you're 12–36 months from a sale, here's the highest-leverage work you can do:
1. Grow and stabilize earnings (12–24 months out)
The trailing 12 months (TTM) of earnings drives valuation more than any other factor. A business showing $500K EBITDA at sale is worth ~$2M at 4x; the same business showing $700K is worth ~$2.8M. Focus on the bottom line: cut non-essential expenses, raise prices, sunset unprofitable product lines.
2. Diversify customer base (12–24 months out)
If you have a customer over 25% of revenue, grow other customers or add new ones to dilute that concentration. Even getting the largest customer below 20% materially improves buyer comfort.
3. Secure recurring revenue contracts (6–18 months out)
Convert project customers to retainers or service contracts. Even a 6-month contract provides more visibility than a one-time engagement. Document renewal rates.
4. Build systems and reduce owner dependence (6–24 months out)
Document key processes. Promote or hire a #2 who can run operations. Take a 2-week vacation where you're genuinely unreachable—if the business survives, you've proven transferability. Buyers notice.
5. Clean up financials (6–12 months out)
Move from cash to accrual accounting if appropriate. Engage a CPA for reviewed or audited financials. Remove personal expenses from the business. Stop aggressive tax positions that depress reported earnings—you'll pay more in taxes but net more at sale.
6. Reduce debt and clean up the balance sheet (6–12 months out)
Pay down high-interest debt. Resolve pending litigation. Sell off non-core assets. A clean balance sheet speeds due diligence and removes negotiation points.
7. Plan the deal structure with a CPA and M&A attorney (3–6 months out)
Asset sale vs. stock sale has major tax implications. Earn-outs, seller financing, non-competes, and consulting agreements all affect net proceeds. Get professional advice before negotiating—not after.
Working with advisors
- Business broker: For businesses under $2M revenue; typically charges 8–12% commission. List, market, qualify buyers, manage process.
- M&A advisor / investment banker: For businesses $2M–$50M+; typically charges 4–8% on a Lehman scale. Run structured auctions, manage buyer outreach.
- M&A attorney: Negotiates purchase agreement, handles reps and warranties, manages closing. Costs $15K–$75K+ depending on deal size.
- CPA: Prepares adjusted financials, advises on tax structure, models net proceeds. Often a fixed-fee engagement.
Cheap out on advisors and you'll pay many times their fee in lost value or surprise tax bills. Treat them as investment in net proceeds, not as cost.
Realistic expectations
Most small business owners dramatically overestimate what their business is worth. They anchor on revenue, ignore owner dependence, and forget that buyers discount for transition risk. A business showing $300K SDE rarely sells for $1.5M—it usually sells for $900K–$1.05M at 3–3.5x SDE, minus closing costs, minus seller-financed portion, minus taxes.
Get a realistic valuation range early—ideally 18–24 months before you plan to sell—so you can decide whether to invest in growing the business or accept current value. Sometimes the right answer is "sell now and reinvest the proceeds elsewhere."
Want a quick estimate of what your business might be worth? Our Business Valuation Calculator estimates value using SDE, EBITDA, and revenue multiples based on your inputs—so you can see the range buyers might pay and identify which levers (growth, margins, recurring revenue) move the number most.