What EBITDA Measures and Why It Differs from Operating Profit

EBITDA is earnings before interest, tax, depreciation, and amortisation. It is calculated by taking net income and adding back four items: interest expense, tax expense, depreciation, and amortisation. The result is a measure of operating earnings before the effects of capital structure decisions, tax jurisdiction, and the accounting treatment of fixed assets and intangibles. Operating profit — also called EBIT — adds back only depreciation and amortisation, leaving interest and tax expense in the figure.

The Distinction That Matters

EBITDA is not a cash flow measure. It is frequently described as a proxy for cash flow, but this description is imprecise and sometimes misleading. A company with strong EBITDA and significant working capital requirements may generate much less cash than its EBITDA implies. The working capital cycle — the timing difference between when costs are paid and when revenue is collected — is entirely absent from EBITDA. A company that invoices sixty days before collecting payment has a working capital drag that reduces its actual cash generation well below its EBITDA figure.

EBITDA is useful as a valuation benchmark because it produces a number that is comparable across companies with different capital structures, tax positions, and depreciation policies. A company that has leased its equipment and a company that has purchased the same equipment will show different operating profits but similar EBITDAs, which makes the EBITDA multiple a more consistent basis for comparison across different financing decisions.

Why It Surfaces in a Raise Process

Series B and growth equity investors use EBITDA margins as a primary profitability benchmark and as the denominator in the Rule of 40 calculation. A company approaching a Series B that does not have EBITDA calculated separately in its financial model cannot produce this figure without manual reconstruction, which introduces delay and suggests the management accounts were not built for institutional investor review.

The Common Structural Error

The most common error is using net income instead of EBITDA when calculating the Rule of 40 or when comparing the company to sector benchmarks. Net income includes interest, tax, depreciation, and amortisation, which EBITDA explicitly excludes. The difference can be material for early stage companies with significant depreciation on capitalised development costs or with debt in the capital structure.

RELATED TERMS
- What the Rule of 40 Calculates and When It Applies
- How Gross Margin Is Calculated for a SaaS Business
- What Management Accounts Contain and When They Must Be Produced
- The Financial Model a Series A Investor Actually Reviews and Why the Structure Matters More Than the Numbers

Tool: Startup Financial Readiness Scorecard