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Income Approach

Capitalization of Earnings

The Capitalization of Earnings method converts a single period of normalized earnings into an indication of value by dividing by a risk-adjusted capitalization rate. It's the most straightforward income approach — best suited for businesses with stable, predictable earnings that are expected to continue indefinitely.

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USPAP Classification: Income Approach — Direct Capitalization

Under USPAP Standard 9, the Income Approach values a business based on anticipated economic benefits. The Capitalization of Earnings method is a direct capitalization technique that converts a single period of representative earnings into an indication of value. Per NACVA and IBA standards, the cap rate must be built from market-derived components — not arbitrarily assigned — and the appraiser must explain the basis for each component of the build-up. USPAP requires that capitalization rates and projections be based on reasonable and appropriate evidence.

Standards references: USPAP Standard 9, Ibbotson/Duff & Phelps Build-Up Method, NACVA Professional Standards, Kroll Cost of Capital Navigator

How It Works

1

Determine Normalized Earnings

Calculate the business's sustainable, normalized earnings — typically SDE for Main Street or EBITDA for mid-market. Apply multi-year weighted averages to smooth cyclical variations. Remove one-time, non-recurring items.

2

Build the Capitalization Rate

The cap rate represents the required rate of return an investor demands. For small businesses, it's built up from: Risk-Free Rate (20-year Treasury yield) + Equity Risk Premium + Size Premium + Industry Risk Premium + Company-Specific Risk Premium (CSRP). For Main Street businesses, total cap rates typically range from 20% to 33%.

3

Adjust for Growth (if applicable)

If the business has a sustainable long-term growth expectation, subtract the growth rate from the discount rate to derive the cap rate. Cap Rate = Discount Rate − Long-Term Growth Rate. For no-growth businesses, the cap rate equals the discount rate.

4

Divide Earnings by Cap Rate

Indicated Value = Normalized Earnings ÷ Capitalization Rate. For example: $200,000 SDE ÷ 25% cap rate = $800,000 indicated value. The lower the cap rate (lower risk), the higher the value.

The Formula

Business Value = Normalized Earnings ÷ Capitalization Rate

Where Cap Rate = Discount Rate − Sustainable Growth Rate

The Build-Up Method for Cap Rate

MainStreetOS™ builds the discount rate (and subsequently the cap rate) using the Build-Up Method, which is standard practice under USPAP and NACVA guidelines for privately held businesses:

Component
Example Rate
Risk-Free Rate (20-Year US Treasury)
4.3%
Equity Risk Premium
4.6%
Size Premium (small private business)
10.5%
Industry Risk Premium
5.0%
Company-Specific Risk Premium (CSRP)
7.0%
Total Discount Rate
31.4%
Less: Long-Term Sustainable Growth Rate
−3.0%
Capitalization Rate
28.4%

The CSRP is where broker judgment matters most. MainStreetOS™ uses a 15-factor weighted scoring system across Business & Industry, Financial, and Operational risk categories.

When to Rely on This Method

Best When

  • Stable, predictable earnings over 3+ years
  • Mature business in an established industry
  • No significant expected changes in earnings trajectory
  • Business expected to operate indefinitely
  • Single-period earnings representative of future performance

Less Reliable When

  • Volatile or cyclical earnings history
  • Startup or turnaround businesses
  • Rapid growth or decline expected
  • Major planned capital expenditures ahead
  • Earnings driven by non-recurring factors

How MainStreetOS™ Applies This Method

Agent 3 executes Cap of Earnings by:

  • Reading normalized SDE/EBITDA from Agent 2
  • Building the discount rate using the Build-Up Method with your broker-entered risk factor scores
  • Converting the discount rate to a cap rate by subtracting the sustainable growth rate
  • Dividing normalized earnings by the cap rate to produce indicated value
  • Querying Open Brain for historical cap rates from your past valuations for sanity checking

Professional Standards Requirements

USPAP Standard 9

Capitalization rates must be based on reasonable and appropriate evidence. The appraiser must weigh historical information and trends, current market factors, and reasonably anticipated events. The selection of the earnings period (single year vs. weighted average) must be explained and supported.

Build-Up Method (Duff & Phelps / Kroll)

The industry-standard method for constructing discount and capitalization rates for privately held businesses. Components include the risk-free rate, equity risk premium, size premium, industry risk premium, and company-specific risk premium (CSRP). All components must be sourced from recognized market data.

NACVA Standards

The capitalizer/divisor and the investor must be defined in terms of the same measure of investment return. A pre-tax capitalization rate must be applied to pre-tax earnings; post-tax to post-tax. Mismatching produces materially incorrect valuations.

AICPA SSVS VS Section 100

Requires that the valuation analyst consider and document the basis for all significant assumptions, including the discount rate, capitalization rate, and any adjustments to normalize earnings. The analyst must explain why the capitalization method was selected.

Other Methods

Run a Cap of Earnings Valuation

MainStreetOS™ builds your cap rate from 15 risk factors and applies it alongside four other methods.

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