ExitStack · Valuation Guide · 2026

How to Value a Small Business (2026)

📅 May 20, 2026 ⏱ 14 min read 📊 ~2,700 words

The most reliable way to value a small business is the SDE (Seller's Discretionary Earnings) multiple method. Calculate SDE by adding net profit + owner salary + owner benefits + one-time expenses. Then multiply by an industry-specific multiple — typically 2–4× for main street businesses. A profitable service business earning $200,000 SDE at a 3× multiple is worth roughly $600,000. Larger deals (over $1M EBITDA) use EBITDA multiples instead. For asset-heavy or distressed businesses, the asset-based method applies. SBA lenders require a 1.25× minimum debt service coverage ratio and a formal appraisal for loans over $250,000.

Why Valuation Matters — for Buyers and Sellers

Whether you're buying your first business or preparing to exit one you've built, the asking price is either an anchor or a trap. Sellers overvalue because they count sweat equity. Buyers undervalue to negotiate harder. Neither helps you close a deal that works for both sides.

Understanding the five core valuation methods — SDE multiples, EBITDA multiples, asset-based valuation, market comparables, and Discounted Cash Flow (DCF) — gives you the vocabulary to negotiate confidently and the math to know when a deal is fairly priced.

Method 1: SDE Multiples (Most Common for Small Businesses)

SDE stands for Seller's Discretionary Earnings. It's the industry-standard measure of a small business's true earning power for an owner-operator.

How to Calculate SDE

Start with the business's net profit (after all operating expenses, before taxes), then add back:

  • Owner's salary and benefits (wages, health insurance, retirement contributions)
  • Depreciation and amortization (non-cash charges)
  • Technology and SaaS subscriptions — solopreneurs spend $4,200–$7,800/yr on average (software, hosting, tools, AI services). These are real operating expenses that affect SDE.
  • Interest expense (financing structure will change with the sale)
  • One-time, non-recurring expenses (legal fees for a lawsuit, equipment write-offs)
  • Personal expenses run through the business (personal vehicle, travel, etc.)

SDE = Net Profit + Owner Compensation + Addbacks

Worked Example

Example: HVAC Service Business
Calculated SDE: $240,000
Net profit $90K + Owner salary $120K + vehicle/personal expenses $18K + one-time legal fees $12K = $240K SDE. At a 2.8× multiple → $672,000 estimated value.

SDE Multiple Ranges by Business Type

The multiple applied to SDE depends on industry, growth rate, owner dependence, and deal size. Here are current market ranges:

IndustrySDE Multiple RangeKey Factors
Restaurant (Full Service)1.5× – 3.0×Location, lease terms, cuisine type
Fast Food / QSR Franchise2.5× – 4.0×Brand strength, franchise agreement terms
Retail (Brick & Mortar)1.5× – 2.5×Inventory value, lease, online presence
eCommerce / Online Retail2.0× – 4.0×Traffic source, brand moat, supplier concentration
Professional Services2.5× – 4.0×Client concentration, staff retention, contracts
Home Services (HVAC, plumbing)2.5× – 4.5×Recurring contracts, technician count, territory
Healthcare / Dental3.0× – 5.0×Insurance mix, patient retention, equipment
Construction / Contracting1.5× – 3.0×Backlog, equipment owned, bonding capacity
B2B SaaS / Subscription4.0× – 8.0×MRR, churn, growth rate, product differentiation
Agency (Marketing/PR/Design)2.5× – 4.5×Recurring retainers, client mix, key-person risk

Method 2: EBITDA Multiples (For Larger Deals)

Once a business generates over $1 million in annual earnings, buyers and lenders shift to EBITDA — Earnings Before Interest, Taxes, Depreciation, and Amortization. Unlike SDE, EBITDA doesn't add back the owner's salary, which makes it better suited for businesses with professional management already in place.

EBITDA multiples for small-to-mid market deals typically range from 3× to 7×, with strategic buyers paying premium multiples for synergies. The formula is straightforward:

Business Value = EBITDA × Multiple

A manufacturing company with $800,000 EBITDA trading at a 4× multiple has a $3.2M enterprise value. Subtract any outstanding debt and add cash to get equity value.

SDE vs. EBITDA: When to Use Each

FactorSDE MultipleEBITDA Multiple
Business sizeUnder $5M revenue$5M+ revenue
Management structureOwner-operatedManagement team in place
Earnings thresholdUnder $1M annual earningsOver $1M annual earnings
SBA financingCommonLess common (conventional debt)
Owner's comp treatmentAdded back to earningsCounted as expense (market rate)
Buyer typeIndividual buyers, searchersPrivate equity, strategic buyers

Method 3: Asset-Based Valuation

Asset-based valuation is used when the business isn't profitable or when assets are the primary value driver — think equipment-heavy companies, real estate holdings, or businesses being wound down. The calculation is:

Business Value = Fair Market Value of Assets − Liabilities

Assets typically include: equipment and machinery, inventory, accounts receivable, real estate (if owned), intellectual property, and goodwill. This method gives a floor value — what you'd get if you liquidated everything — not a going-concern value. Most operating businesses are worth more than their assets.

Method 4: Market Comparables (Real Deal Data)

While multiples give you a formula, market comparables give you a reality check. This method finds 3–5 businesses similar to yours that have actually sold recently, then adjusts for differences in size, revenue, profitability, geography, and business model.

The key sources are BizBuySell.com (700,000+ listings, sold database), MicroAcquire (SaaS and digital businesses), and Dealwake (transaction database with multiples). Business brokers also maintain private databases of closed deals.

How to Use Market Comparables

For each comparable sale, record: sale price, annual revenue, annual SDE (or EBITDA if available), location, and business type. Then calculate the implied SDE multiple and revenue multiple for each deal.

Example: Digital Marketing Agency
Comparable Range: $180,000 – $240,000
Three similar agencies sold at 2.2×, 2.5×, and 2.8× SDE on $100K–$150K SDE. Your agency with $120K SDE likely falls in the $198K–$264K range. Adjust up for strong recurring retainer revenue; adjust down for high owner dependence.

When you can't find perfect comparables, use the "rule of three": find one business larger than yours, one similar, and one smaller. The implied multiples from those three deals tell you the market range. Market comparables are particularly valuable when you're in a niche vertical where industry average multiples don't apply.

What Adjusts the Multiple Up or Down

Multiples aren't fixed. Buyers (and lenders) apply adjustments based on risk factors:

Multiple Compressors (lower value)

  • High owner dependence — business stops if the owner leaves
  • Customer concentration — one client represents 30%+ of revenue
  • Declining revenue — 2+ years of revenue decline
  • Weak books — messy financials, cash transactions, no accrual accounting
  • Short lease — less than 3 years remaining on a key location lease
  • Staff turnover — high churn in key roles

Multiple Expanders (higher value)

  • Recurring revenue — subscriptions, retainers, service contracts
  • Documented processes — SOPs, training manuals, CRM data
  • Growth trajectory — consistent 15–20%+ year-over-year growth
  • Diversified customer base — no client over 10% of revenue
  • Strong brand / online presence — reviews, domain authority, social following
  • Experienced management team — key people who stay post-sale

Revenue Multiples: A Quick Proxy

Revenue multiples are a fast sanity check, especially for early-stage or high-growth businesses where profitability doesn't yet reflect potential. They're common in SaaS and subscription models:

Business TypeRevenue Multiple RangeWhen Used
SaaS (bootstrapped, $500K–$5M ARR)2× – 5× ARRProfitable or near-profitable
eCommerce0.5× – 2× revenueCombined with SDE check
Content / Media / Newsletters1× – 3× revenueSubscriber monetization potential
Professional Services0.5× – 1.2× revenueSanity check alongside SDE
Brick-and-mortar Retail0.2× – 0.5× revenueLow-margin environments

Never rely on revenue multiples alone. A $2M revenue business with $50,000 net profit and a revenue multiple of 1× is priced at $2M — but its SDE multiple would be astronomical and the deal wouldn't pencil for any rational buyer.

Method 5: Discounted Cash Flow (DCF)

DCF is the most rigorous valuation method — and the most commonly misused on main street deals. It projects future cash flows over 3–5 years, estimates a terminal value at the end of that period, then discounts everything back to today's dollars using a discount rate.

Business Value = PV of Year 1 CF + PV of Year 2 CF + ... + PV of Year N CF + Terminal Value PV

When DCF Makes Sense

DCF is most appropriate when: the business has predictable, recurring cash flows (SaaS with multi-year contracts, established service businesses with long-term retainer clients), you have 3+ years of clean financial history, and you're modeling a 3–5 year hold period before resale.

Simplified 3-Year DCF Example
Estimated Value: ~$650,000
Year 1 CF: $180K ÷ 1.15 = $156,500 · Year 2: $198K ÷ 1.32 = $149,200 · Year 3: $218K ÷ 1.52 = $143,200 · Terminal Value: $218K × 4.0 (exit multiple) ÷ 1.52 = $574,000 · Total: ~$1,023,000 / 1.58 (cumulative discount factor) ≈ $650K. At a 15% discount rate over 3 years.

The Discount Rate

Small business DCF typically uses a discount rate of 12–20%, reflecting: the risk-free rate (US Treasury yields), a premium for small business size and illiquidity, and a risk premium for industry-specific factors. More predictable businesses (recurring revenue, contracts in place) use lower rates; volatile or owner-dependent businesses use higher rates.

When NOT to Use DCF

For the vast majority of main street businesses — single-location service companies, restaurants, retail shops — DCF is unreliable because cash flow projections are too speculative. If the business could be worth $300K or $600K depending on whether the owner stays, your DCF is a guess dressed up as math. Use the SDE multiple method instead, and reserve DCF for businesses with multi-year contracts, recurring subscription models, or formal management teams where cash flow is genuinely predictable.

How SBA Lenders Think About Value

If you plan to use SBA financing to buy, lenders add a layer beyond the purchase price. They require the business to support the debt — measured by Debt Service Coverage Ratio (DSCR):

DSCR = Annual Net Operating Income ÷ Annual Debt Service

SBA requires a minimum 1.25× DSCR. That means for every $1 of annual loan payment, the business must generate $1.25 in operating income. For acquisitions over $250,000, SBA also requires a formal business valuation from a qualified independent valuator. Our SBA 7(a) Loans for Acquisitions guide covers eligibility and application step by step.

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Common Valuation Mistakes

  • Ignoring addbacks — Not normalizing personal expenses or one-time costs understates SDE significantly.
  • Using one year of earnings — Lenders and sophisticated buyers average 2–3 years of financials. One outlier year (good or bad) gets averaged out.
  • Confusing revenue with value — "We do $3M in revenue" isn't a valuation. Margins matter far more than topline.
  • Overlooking working capital — Most acquisition deals include a working capital peg. Understand what current assets and liabilities will transfer.
  • Not accounting for real estate — If the business owns its building, real estate is often carved out and valued separately.

When to Get a Formal Appraisal

A formal certified business valuation is required when: (1) applying for SBA financing over $250K, (2) settling a business dispute or divorce, (3) estate planning or gifting business interests, or (4) issuing equity to employees. Certified Valuation Analysts (CVA) and Accredited Senior Appraisers (ASA) typically charge $3,000–$10,000. For a quick deal sense check, our free tool is a solid starting point.

More ExitStack Resources

Frequently Asked Questions

The most common method is the SDE (Seller's Discretionary Earnings) multiple. You calculate SDE — net profit plus owner salary, benefits, and one-time expenses — then multiply by an industry-specific multiple, typically 2–4× for main street businesses. This reflects what a new owner would earn and is preferred by business brokers and SBA lenders.
SDE stands for Seller's Discretionary Earnings. Start with net profit, then add back: owner's salary and benefits, depreciation and amortization, interest expense, one-time or non-recurring expenses, and personal expenses run through the business. The result represents the true cash flow available to a full-time owner-operator.
For small businesses under $5M in revenue, EBITDA multiples typically range from 3× to 6×. Service businesses with recurring revenue often command 4–6×. Retail and restaurants typically trade at 2–4× EBITDA. SaaS and subscription businesses can reach 5–10× or higher.
Industry multiples reflect what buyers have historically paid relative to earnings in that sector. A restaurant might sell for 2–3× SDE because of high operator risk, while a SaaS business sells for 4–7× because of recurring revenue and scalability. Multiples are derived from comparable transaction data and vary based on growth rate, customer concentration, and owner dependence.
Asset-based valuation adds up tangible assets minus liabilities — used for asset-heavy or declining businesses. Earnings-based valuation (SDE or EBITDA multiples) is used for profitable going-concern businesses and is the standard for most small business sales. Most buyers use earnings-based methods because they reflect the income stream they are buying.
DCF projects future annual cash flows over 3–5 years, estimates a terminal value at the end of that period, then discounts everything back to today's dollars using a discount rate (typically 12–20% for small businesses). It's most useful when a business has strong, predictable cash flows — SaaS companies with recurring subscriptions, service businesses with long-term contracts. For businesses with volatile or owner-dependent cash flows, the multiple method (SDE/EBITDA) is more reliable because DCF projections become too speculative.
The market comparables method finds 3–5 similar businesses that have recently sold, then adjusts your valuation based on differences in size, revenue, profitability, geography, and business model. Sources include BizBuySell, MicroAcquire, Dealwake, and business broker listings. You compare on both SDE multiple and revenue multiple, then interpolate to your business. For example, if three digital marketing agencies sold at 2.2–2.8× SDE with $100K–$150K SDE, your agency with $120K SDE likely falls in that range.
High owner dependence is the single biggest value destroyer. If the business cannot operate without the current owner, buyers apply a discount — often 0.5× to 1× lower multiple. Businesses with documented processes, trained staff, and recurring customer relationships command premium multiples because they can be transferred cleanly to a new owner.
SBA lenders use similar methods — primarily SDE multiples and debt service coverage ratios (DSCR). For SBA 7(a) loans, lenders require a minimum 1.25× DSCR. The SBA also requires a formal business valuation for loans over $250,000 from a certified valuator.
For informal estimates, use BizStackHub's free Valuation Estimator. For formal valuations required by banks or legal proceedings, hire a Certified Valuation Analyst (CVA) or Accredited Senior Appraiser (ASA). Formal valuations typically cost $3,000–$10,000. Most small business sales under $1M use a broker's informal opinion of value rather than a formal appraisal.
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