Corporate valuation is the process of determining what a business is worth. In M&A, valuation drives the price a buyer is willing to pay and the floor a seller is willing to accept. There is no single correct method — different approaches produce different values, and sophisticated buyers and sellers use multiple methods in combination to triangulate a defensible range. The three recognized methodological families are the income approach (what the business earns), the market approach (what comparable businesses sell for), and the asset approach (what the business owns minus what it owes). Understanding how each works — and when each is appropriate — is foundational to any serious business acquisition or sale.
Enterprise Value vs. Equity Value: The Foundation
Before diving into valuation methods, it is important to distinguish two terms that appear throughout M&A discussions: enterprise value (EV) and equity value.
Enterprise value is the total value of the business as an operating entity — the price a buyer would pay to acquire the entire business including its debt and cash. It represents what you would need to pay to own the business free and clear.
Equity value is what remains after subtracting net debt (total debt minus cash) from enterprise value. In a public company context, equity value is the market capitalization — shares outstanding multiplied by share price. In a private company acquisition, equity value is the price paid directly to the seller (shareholders), because the buyer typically assumes or pays off any existing debt at or before close.
The relationship: Enterprise Value = Equity Value + Net Debt
In small business acquisitions, most deals are structured as asset purchases, and the concept of "equity value" maps roughly to the purchase price the seller walks away with — which is the enterprise value of the business minus any assumed liabilities, plus or minus working capital adjustments. Understanding which measure you are discussing when evaluating an offer or a deal is foundational to avoiding misunderstandings in early negotiations.
For a complete framework on how these concepts translate into actual deal pricing, see how to value a business.
The Income Approach: DCF and Capitalization of Earnings
The income approach values a business based on the present value of its expected future earnings. It is the most theoretically rigorous valuation method and the most sensitive to assumptions.
Discounted Cash Flow (DCF) projects the business's free cash flow for a defined forecast period (typically 5 years), then estimates a terminal value at the end of that period, and discounts all future cash flows back to present value using a discount rate that reflects the risk of the business.
The key inputs — and the key sources of disagreement: - Revenue and margin projections: Buyers and sellers rarely agree on future performance. Sellers project optimistically; buyers apply conservative assumptions. - Discount rate (WACC or cost of equity): Higher discount rates produce lower valuations. For small private businesses, discount rates often run 20–35% to reflect illiquidity, key-person risk, and business-specific risk — much higher than for public companies. - Terminal value: The value at the end of the projection period often represents 60–80% of the total DCF value. Small changes in terminal growth rate assumptions produce large changes in the concluded value.
Capitalization of Earnings is a simplified income approach used for stable, predictable businesses. It takes a single normalized earnings figure (SDE or EBITDA) and divides it by a capitalization rate — essentially assuming the current earnings level persists in perpetuity. A business earning $500K annually capitalized at 25% implies a value of $2M. The capitalization rate is the inverse of the multiple: a 4x multiple implies a 25% cap rate.
The income approach is most appropriate for businesses with stable, predictable cash flows and a track record that supports projection assumptions. It is less reliable for early-stage, highly cyclical, or owner-dependent businesses.
The Market Approach: Comparables and Transaction Multiples
The market approach values a business by reference to how comparable businesses have been priced in the market — either through recent private company transactions or through the trading values of comparable public companies.
Guideline Private Company Method is the most commonly used valuation approach in small and mid-market business M&A. The analyst identifies comparable transactions from databases (DealStats, Pratt's Stats, IBA Market Data, Capital IQ for larger deals) and derives value multiples — most commonly EBITDA multiples, revenue multiples, or SDE multiples for smaller businesses. These multiples are then applied to the subject company's financial metrics.
Guideline Public Company Method uses trading multiples of publicly listed companies in the same industry as benchmarks. This approach is most relevant for mid-market businesses being acquired by strategic or PE buyers who are familiar with public market comparables. For small businesses, public company multiples are typically adjusted downward to reflect illiquidity and size differences.
| Method | Best For | Key Data Source | Key Risk |
|---|---|---|---|
| Private transaction comparables | Small to mid-market M&A | DealStats, Pratt's Stats | Comparables may not be truly comparable |
| Public company multiples | Mid-market strategic deals | Capital IQ, Bloomberg | Size premium mismatch |
| Revenue multiples | SaaS, high-growth businesses | Industry databases | Ignores profitability differences |
| EBITDA multiples | Stable businesses with history | Transaction databases | Requires clean EBITDA normalization |
| SDE multiples | Small owner-operated businesses | IBA, BizBuySell data | Add-back validation required |
The market approach is the most intuitive and the most commonly cited in M&A conversations. Its limitation is that "comparable" transactions are never perfectly comparable — industry, geography, growth rate, and customer concentration all differ. The analyst's judgment in selecting and adjusting comparables is a significant driver of the concluded value.
See Industry-Specific Valuation Multiples
DealFlow OS publishes EBITDA and SDE multiples by industry — updated for current market conditions — with buyer criteria and deal structure context.
Browse industry multiples →The Asset Approach: Net Asset Value and Liquidation
The asset approach values a business by adjusting its balance sheet to reflect the fair market value of its assets and liabilities. It asks: what would the business be worth if we added up everything it owns at fair market value, subtracted everything it owes, and sold the result?
Adjusted Net Asset Value is the going-concern form of this approach. The analyst identifies each asset on the balance sheet (and any off-balance-sheet assets, such as internally developed intangibles), determines its fair market value, deducts liabilities, and concludes an equity value. This approach is most commonly used for: - Asset-holding companies and real estate businesses, where the asset values are meaningful - Capital-intensive businesses (heavy equipment, manufacturing) where equipment values are significant - Businesses where the going-concern value is lower than the sum of the parts
Liquidation Value is the distressed form — what the assets would bring in a forced sale. Liquidation value is almost always lower than going-concern value because time-constrained asset sales produce discounted prices. Lenders use liquidation value when assessing collateral coverage; buyers use it as a floor in distressed acquisitions.
For most operating businesses — particularly service businesses, professional practices, and technology companies where value resides in relationships, contracts, and people rather than hard assets — the asset approach produces a value floor, not a primary value conclusion. A physical therapy practice with $150,000 in equipment and $50,000 in accounts receivable might have an asset approach value of $200,000, while its income-based value reflecting patient relationships and payer contracts might be $900,000. The income approach reflects the going-concern value more accurately.
For information on the professionals who apply these methods formally and when you need one, see the certified valuation analyst guide.
Which Method to Use — and When
Sophisticated valuation analysts and M&A advisors rarely rely on a single method. They apply multiple approaches, understand why each produces the result it does, and reconcile the differences to conclude a range.
| Business Type | Primary Method | Secondary Method | Notes |
|---|---|---|---|
| Stable cash-flowing small business | SDE/EBITDA multiple | Capitalization of earnings | Market approach most practical |
| Mid-market growth company | EBITDA multiple (transactions) | DCF | Both required by most PE buyers |
| High-growth SaaS / tech | Revenue multiple | DCF | EBITDA often negative |
| Asset-intensive business (mfg.) | EBITDA multiple + asset | Adjusted NAV | Asset floor matters to lender |
| Distressed business | Liquidation value | Asset approach | Going-concern value may not exist |
| Real estate holding company | Asset approach | Cap rate (income) | Asset value is primary |
| Professional practice (solo) | SDE multiple | Earnings capitalization | Discount for key-person risk |
For buyers, the valuation methodology matters because it determines how you underwrite the deal and how you respond to the seller's asking price. For sellers, understanding which method produces the highest defensible value — and preparing your financials to support that method — is the most direct path to maximizing exit proceeds.
Frequently Asked Questions
What are the three main corporate valuation methods?
The three main business valuation approaches are: (1) the income approach — which values the business based on its expected future earnings, using methods like discounted cash flow (DCF) or capitalization of earnings; (2) the market approach — which values the business by reference to comparable private transactions or public company multiples; and (3) the asset approach — which values the business based on the fair market value of its assets minus liabilities. Most formal valuations apply more than one method and reconcile the results.
What is the difference between enterprise value and equity value?
Enterprise value (EV) is the total value of the business as an operating entity, including its debt and cash — the total cost to acquire the business free and clear. Equity value is enterprise value minus net debt (total debt minus cash). In a private business acquisition, equity value roughly corresponds to the purchase price the seller receives, because the buyer typically assumes or retires the business's debt at close.
What is DCF and when is it used in business valuation?
DCF (discounted cash flow) is an income approach method that projects the business's expected future free cash flows for a forecast period, estimates a terminal value at the end of that period, and discounts all cash flows back to present value using a discount rate that reflects the business's risk. DCF is most appropriate for businesses with stable, projectable cash flows. It is widely used by PE and institutional buyers for mid-market acquisitions. For small businesses with limited historical data or high owner dependency, DCF is less reliable than market comparable methods.
How do EBITDA multiples work in business valuation?
An EBITDA multiple is a market approach shorthand: enterprise value divided by EBITDA equals the multiple. If comparable businesses in an industry sell for 5x EBITDA and your business generates $400,000 in normalized EBITDA, the implied value is $2,000,000. The multiple is derived from transaction databases of comparable sales. It varies by industry, business size, growth rate, customer concentration, and the quality of earnings. EBITDA must be normalized — adjusted for owner compensation, one-time items, and non-recurring expenses — before a multiple is applied.
When is the asset approach used in business valuation?
The asset approach — valuing the business based on the fair market value of its assets minus liabilities — is most appropriate for asset-holding companies, capital-intensive businesses (manufacturing, equipment leasing), distressed businesses where going-concern value may not exist, and real estate businesses. For operating businesses where value resides in customer relationships, contracts, and people, the asset approach produces a value floor rather than a primary conclusion. Most professional practices and service businesses are valued primarily on income or market methods.
Corporate valuation is not a formula — it is a judgment process that uses data and methodology to produce a defensible range. Buyers use valuation to underwrite a deal price and stress-test their assumptions; sellers use it to establish a floor and understand which aspects of their business most drive value. The method that produces the highest defensible number for your business is the one your financial history can most credibly support. Prepare your financials — three years of normalized earnings, documented add-backs, and supporting revenue data — before engaging any valuation analyst or entering serious negotiations. For a buyer-facing walkthrough of how these methods translate into real deal pricing, see [how to value a business](/blog/how-to-value-a-business). For the professionals who produce formal valuation reports, see the [certified valuation analyst guide](/blog/what-is-a-certified-valuation-analyst).
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