Business Valuation: A Complete Guide for Owners

Most owners do not know what their business is actually worth. They have a number in their head, usually built from what they put into it and what they would need on the other side, but that number is rarely close to what a buyer would pay or a bank would lend against. Business valuation is the discipline of replacing that number with a defensible one.

Quick answer. A business valuation calculates what your company is worth using one of three approaches: income (what cash it produces), market (what comparable businesses sold for), or asset (what its assets and liabilities net out to). For most small businesses under $5M in profit, the answer is Seller's Discretionary Earnings or EBITDA times an industry multiple, adjusted for the things that lift or drop the multiple. A formal valuation typically costs a few thousand dollars to the low five figures depending on scope, and takes two to six weeks to produce. In our experience, most owners' starting number is meaningfully higher than what a buyer or a bank will support.

This guide walks through what business valuation is, how the three standard methods work, what drives the multiple up or down, when you actually need a formal valuation, who performs them, and how often to repeat the exercise. If you are valuing your business because you are thinking about selling, our guide to selling a business covers the broader process. This piece focuses on the number itself.

What Business Valuation Actually Is

A business valuation is a defensible estimate of fair market value. The phrase "fair market value" has a specific definition in this context: the price at which the business would change hands between a willing buyer and a willing seller, neither under compulsion to act, both with reasonable knowledge of the relevant facts.

That definition matters because it filters out three numbers owners often confuse with valuation:

• Replacement cost. What it would take to rebuild the business from scratch. Usually higher than market value, sometimes by a wide margin.
• Strategic value. What the business is worth to a specific buyer who can extract synergies. Higher than fair market value, but only available to that one buyer.
• Asking price. What an owner would like to receive. Has no relationship to value unless a market test confirms it.

Fair market value is the number most owners actually need. It is what a bank uses to extend credit, what the IRS uses for estate planning, what a divorce court uses for property division, and what a buyer's lender uses to size a loan. It is also the starting point for any honest conversation about selling.

For a deeper look at why owners commission valuations in the first place, why do a business valuation report covers the practical reasons.

When Owners Actually Need a Valuation

A formal valuation is not always necessary. Owners commission one for a handful of recurring reasons:

If none of these apply, a back-of-envelope estimate may be enough. Top reasons business valuation is needed covers the trigger events in more depth, and the importance of business valuation makes the case for valuing earlier rather than later.

The Three Standard Valuation Methods

Every business valuation uses one of three approaches, or some weighted combination of them. Each makes sense for a different kind of business.

The Income Approach

The income approach values the business based on the cash it produces. For a small business, this is the most common method and almost always the most relevant.

For businesses producing under roughly $1M in profit, the income approach uses Seller's Discretionary Earnings (SDE). SDE starts with net income, then adds back the owner's salary, owner perks (vehicles, travel, family on payroll, personal expenses run through the business), one-time items (legal settlements, equipment write-offs), and non-cash expenses (depreciation, amortization). The result is the cash a single owner-operator could pull out of the business in a year.

For businesses over $1M in profit, the standard measure is EBITDA: earnings before interest, taxes, depreciation, and amortization. The same logic, but without the owner-specific add-backs because larger businesses are usually run by a team, not a single owner.

Once you have SDE or EBITDA, you multiply by an industry-specific multiple. Typical ranges:

A worked example. A landscaping business with $180K in net income, a $120K owner salary, $25K of personal expenses run through the books, and a $15K one-time legal settlement has SDE of $340K once those items are normalized (the term valuators use for adjusting earnings to a defensible operating baseline). At a 3x multiple, that produces an enterprise value of roughly $1.02M. The same business with one customer at 50 percent of revenue might transact at 2.2x, which is $750K. The earnings did not change. The risk profile did.

A more sophisticated income-based method is discounted cash flow (DCF), which projects future cash flows and discounts them back to a present value using a cost-of-capital rate (often called the WACC, or weighted average cost of capital). DCF is common in larger transactions and is sensitive to assumptions about growth and discount rate. For most small businesses, multiples on trailing earnings are more reliable than DCF projections.

For the multiple-based approach in operational detail, how many times profit is a business worth walks through profit-based valuation. How to value a business based on revenue covers when revenue multiples come into play (typically pre-profit SaaS or growth-stage businesses).

The Market Approach

The market approach values the business by comparison: what did other businesses like yours actually sell for? It uses a database of completed transactions (comps) from sources like DealStats, BIZCOMPS, and Pratt's Stats, filtered by industry code, size, geography, and time period.

The output is a multiple range. A franchise sandwich shop with $400K in SDE might find that comparable transactions priced between 2.1x and 2.9x SDE in the past three years. That range becomes the anchor for valuation.

Market-approach data is most useful for businesses in established industries with high deal flow (restaurants, automotive, professional services, light manufacturing, e-commerce). It is less useful for unusual or hybrid businesses where there are few comparable transactions.

A simpler version is the rule of thumb approach: industry-specific shorthand multiples that have built up over years of deal data. A landscaping business might be "two times SDE plus the value of equipment." A dental practice might be "70 to 90 percent of trailing twelve months (TTM) collections." Rules of thumb are coarser than full market analysis but useful for a sanity check. What is the rule of thumb business valuation walks through how these are used and where they break down.

The Asset Approach

The asset approach values the business as the sum of its assets minus its liabilities. It is the right method for two specific cases:

• Asset-heavy businesses where the equipment, real estate, and inventory are the main thing of value (manufacturing, construction, some logistics).
• Distressed or unprofitable businesses that cannot support an income-based valuation. The floor value becomes "what would the assets fetch in a liquidation," which is usually less than book value. This is also where the going-concern assumption matters: a business valued as a going concern (continuing to operate) is usually worth more than the same business valued as an orderly liquidation.

For most service businesses, the asset approach undervalues the business significantly because most of the value sits in intangibles like customer relationships, brand, and operating systems, none of which appear on the balance sheet. The accounting term for that intangible premium is goodwill: the value above tangible assets that comes from reputation, recurring customers, trained staff, and proven systems. A business with $100K of equipment can easily be worth $1.5M because of recurring revenue, a brand, and a team that runs without the owner. Most of that gap is goodwill.

Can you sell a business that is not profitable addresses the case where the asset approach becomes the relevant one.

Which Method Applies to Your Business

For most small businesses with stable profit and an established model, the income approach is primary, with the market approach used as a cross-check. Asset approach is the floor.

A defensible valuation typically does all three and explains the weighting:

• Profitable service or product business under $5M: 70 percent income, 30 percent market, asset as floor
• Asset-heavy manufacturing or construction: 50 percent income, 20 percent market, 30 percent asset
• Pre-profit growth business (SaaS, e-commerce): Revenue-multiple variant of income approach, market approach as cross-check
• Distressed or unprofitable: Asset approach, with going-concern adjustment if relevant

What are the different business valuation methods covers the methods at a deeper level. How to do a small business valuation walks through the practical steps an owner can take to build a working estimate before commissioning a formal one.

What Lifts and Drops the Multiple

Once you have an earnings figure, the variable that moves the price most is the multiple. Two businesses with identical SDE can transact at very different prices because of what surrounds the number.

What lifts the multiple:

• Recurring revenue. Subscription, retainer, contracted, or maintenance revenue. Worth more than project revenue because it persists after the owner leaves.
• Customer diversification. No single customer over 10 to 15 percent of revenue. No top three over 40 percent.
• Owner independence. The business runs without the owner present every day. A buyer can step in.
• Documented systems. SOPs, training materials, an org chart with named roles. The intangible knowledge is on paper, not in the owner's head.
• A management team that stays. Key people with retention agreements through closing and the first year.
• Three years of clean financials. Reviewed or audited statements. No personal expenses commingled.
• Growth. A business growing 10 to 20 percent year over year transacts meaningfully higher than a flat one.
• Industry tailwinds. Buyers pay more in industries they are buying into.

What drops the multiple:

• Heavy owner dependence. The business is the owner. If the owner leaves, customers leave with them.
• Customer or supplier concentration. One client at 40 percent of revenue is a price-killer.
• Declining revenue. A trailing twelve months that is below the prior year drops both earnings and multiple.
• Pending litigation, tax issues, or regulatory exposure. Buyers price these as worst-case.
• Messy financials. QuickBooks file with personal expenses, no clean P&L, missing supporting documentation.
• Industry headwinds. Buyers price down for sectors in structural decline.

A business doing $500K in SDE at a 2.5x multiple is worth $1.25M. The same business with cleaner financials, less owner dependence, and a documented growth path can transact at 4x, which is $2M. Same earnings. $750K of additional value created by what surrounds the number.

How to Estimate Your Business Value Yourself

Before commissioning a formal valuation, an owner can build a working estimate in an afternoon. The number will not be defensible in a transaction, but it will be close enough to make decisions about whether to commission a formal one and where to focus prep work.

Before you start, pull together what a valuator or buyer will eventually ask for anyway:

• Three years of profit and loss statements
• Three years of business tax returns
• Most recent balance sheet
• Customer concentration data (top 10 customers as percent of revenue)
• Employee roster with key roles and tenure
• Lease and any major contracts (supplier, software, franchise)
• Equipment list with rough current values

A simple six-step process:

1. Pull last year's profit and loss. Net income at the bottom is the starting point.
2. Add back owner perks. Owner salary above market rate, vehicles, travel, family on payroll, personal expenses run through the business, country club, phone, anything that is more lifestyle than operating cost.
3. Add back one-time items. Legal settlements, equipment write-offs, COVID losses, anything that will not recur.
4. Add back non-cash expenses. Depreciation, amortization. (For SDE only; EBITDA already excludes these.)
5. The result is SDE. This is what the business actually generates for an owner-operator.
6. Apply a multiple. Use the table above. A typical small business in the $250K to $1M SDE range trades at 2.5x to 3.5x in a clean process.

Sense-check by running the same earnings through revenue. If your SDE is 25 percent of revenue and the result is 3x SDE, that is roughly 0.75x revenue. Most stable small businesses transact between 0.5x and 1.2x revenue, so a result outside that band is a flag to revisit the math.

How to value a small business: a step-by-step approach walks through the same process in more detail, with worked examples. What is my small business worth covers the question from the owner's perspective.

What a Formal Valuation Looks Like and What It Costs

A formal valuation is a defensible written report from a credentialed third party. It is what banks, the IRS, courts, and most serious buyers will accept.

In our experience, fees fall into three tiers depending on the scope of the engagement:

The credentials to look for: CVA (Certified Valuation Analyst), ASA (Accredited Senior Appraiser), or ABV (Accredited in Business Valuation, the AICPA designation for CPAs who specialize). Any of the three is acceptable. A valuation from someone without one of these is harder to defend if challenged.

For the underlying cost question, how much does a small business valuation cost breaks down what drives the price. Are business valuation fees tax deductible and who pays for business valuation cover the practical questions about who picks up the cost.

A formal valuation typically takes two to six weeks. The owner submits financials, tax returns, customer concentration data, employee information, and a description of the business. The valuator interviews the owner, reviews market data, models the income approach, applies adjustments, and produces a written report ranging from 30 to 100 pages.

How Often to Have Your Business Valued

For most owners, a fresh valuation every two to three years is enough. More often than that and the changes are usually smaller than the cost of the report. Less often and the number gets stale fast, especially in industries with shifting multiples.

The exceptions: any time a triggering event is on the horizon (sale, partner change, financing, estate planning), get a current valuation within 12 months of the event. And in years with significant change, structural shifts (large customer wins or losses, M&A within the industry, a step change in revenue), update the working estimate even if a formal report is not commissioned.

How often should you have your business valued walks through the cadence question for different owner situations.

Where Owners Get the Number Wrong

Patterns that show up over and over:

• Confusing what you put in with what it's worth. What you invested over the years is sunk cost. The market does not reimburse effort.
• Pricing the business off your retirement gap. Your number on the other side is not the buyer's problem.
• Comparing to a competitor's sale. Without seeing the financials, structure, and add-backs, the number you heard is unreliable.
• Confusing revenue with profit. A $5M revenue business with $200K SDE and a $5M revenue business with $1.2M SDE are not the same business.
• Listing personal expenses as business expenses on tax returns. Common, but it works against you twice: you have to add them back at valuation, and they raise red flags in due diligence.
• Counting equipment at replacement cost. Buyers value equipment at fair market or liquidation, not what you paid.
• Assuming the multiple applies to one good year. Buyers and valuators use trailing twelve months or three-year averages, depending on the volatility of the business.
• Not separating personal from business goodwill. In smaller professional practices, much of the goodwill walks out the door with the owner. That portion is worth less to a buyer.

How Buyers Actually Price the Number

A valuation is a starting point. The price a buyer offers is shaped by additional factors the report does not always capture:

• Buyer type. Strategic buyers (a competitor or industry adjacent) typically pay the highest because they can extract synergy. Financial buyers (private equity, search funds) pay based on standalone returns. Individual buyers pay based on what they can finance and operate. The same business attracts different prices from different buyer types.
• Process. A confidential auction with multiple buyers in parallel typically lifts the price meaningfully above a single-buyer negotiation, because the seller has leverage and the buyer knows it.
• Deal structure. A $3M offer with $1.5M cash, $1M earn-out, and $500K seller note has a different risk-adjusted present value than $3M cash at close. Headline price and net present value are not the same.
• Working capital adjustment. The price is usually adjusted up or down at close based on whether working capital matches a target. Can swing the final price by 5 to 10 percent.
• Escrow holdback. A portion of price (typically 5 to 15 percent) held for 12 to 24 months to cover post-close issues. The seller gets it back assuming no claims.
• Marketability and control. Private companies typically transact at a discount to comparable public-company multiples, sometimes called the discount for lack of marketability (DLOM). And a controlling stake is worth more per share than a minority stake of the same business, the difference between a control premium and a minority discount. These show up in partner buyouts and shareholder disputes more often than in straight sales.

The takeaway: a defensible valuation gets you to a credible price range, but the structure of the deal often matters more than the headline number. Our step-by-step guide to selling a business covers the broader process, including deal structure and negotiation.

Frequently Asked Questions

What is business valuation?
Business valuation is the process of estimating what a business is worth at fair market value, the price between a willing buyer and willing seller. The standard methods are income (cash it produces), market (what comparables sold for), and asset (what assets minus liabilities net to). For most small businesses, the income approach is primary, using a multiple of Seller's Discretionary Earnings or EBITDA.

How do you value a small business?
Calculate Seller's Discretionary Earnings by adding back owner salary, perks, one-time items, and non-cash expenses to net income. Multiply by an industry-specific multiple, typically 1.5x to 4x for businesses under $1M in SDE. Cross-check against revenue multiples and recent sales of comparable businesses. For a defensible number, commission a formal valuation from a CVA, ASA, or ABV.

How much does a business valuation cost?
A calculation of value runs $1,500 to $4,000. A limited-scope opinion runs $3,000 to $7,000. A full opinion of value with all three methods runs $7,000 to $25,000 or more for complex businesses. The cost depends on size, complexity, and the level of defensibility required.

What is the rule of thumb for valuing a business?
For most stable small businesses, the rule of thumb is 2x to 4x Seller's Discretionary Earnings, or 4x to 6x EBITDA for larger businesses. Industry-specific rules of thumb (a percentage of trailing revenue, a multiple of equipment value plus earnings) work as quick estimates but should not replace a real valuation for any meaningful decision.

How often should I value my business?
Every two to three years for routine planning. Within 12 months of any triggering event: a sale, partner change, financing, estate planning, or divorce. Update the working estimate during years of significant change even if a formal report is not commissioned.

Who can do a business valuation?
A CVA (Certified Valuation Analyst), ASA (Accredited Senior Appraiser), or ABV (Accredited in Business Valuation, AICPA designation for CPAs) is the credential to look for. CPAs without ABV, business brokers, and "valuation tools" online produce numbers that are useful for ballpark estimates but are harder to defend if the valuation is challenged.

What is the difference between SDE and EBITDA?
SDE (Seller's Discretionary Earnings) is the cash a single owner-operator can pull out of the business, including salary and perks. Used for businesses under about $1M in profit. EBITDA (earnings before interest, taxes, depreciation, and amortization) is calculated without owner-specific add-backs and is used for businesses run by management teams, typically over $1M in profit.

Does my business have value if it is not profitable?
Sometimes. If the business has assets (equipment, real estate, inventory, customer contracts), the asset approach establishes a floor value. Strategic buyers may pay for customer relationships, brand, or recurring revenue even at a loss. Most unprofitable businesses transact at a steep discount to what a profitable comparable would, and many do not transact at all.

Where to Start

If you are within 24 months of a sale, partner change, or financing event, the work this quarter is not the formal valuation. It is the preparation that lifts the multiple. The formal valuation comes later, once the business is positioned to show the highest defensible number.

This quarter:

1. Build a working estimate. Use the six-step process above. The number does not need to be precise. It needs to be honest.
2. Identify the multiple drivers you can move. Owner dependence, customer concentration, financial cleanliness, recurring revenue. One year of focused work on these typically lifts a multiple by 0.5x to 1x.
3. Get the books cleaned up. Separate personal expenses, document add-backs, get the trailing twelve months presentable.
4. Time the formal valuation right. Commission it 6 to 12 months before the event, when the prep work has had time to show in the numbers.

A defensible valuation is the foundation of a good decision. Done early, it shapes what to fix. Done late, it confirms what could have been.

If you want help building the working estimate or identifying which multiple drivers to focus on, we offer a free business health check that gives owners an honest read on where the business sits today and what would move the value most over the next 12 months. Explore our coaching programs or book a conversation with one of our coaches. We work with owners across South Florida and the US who are 12 to 36 months from an exit, a partner change, or a financing event.