This post breaks the EBITDA valuation formula into its two separate parts — how EBITDA itself is calculated, and how a multiple turns that figure into an estimated value — since conflating the two is where most confusion about this formula comes from.

  • The formula has two distinct steps: calculate EBITDA, then multiply it by a market-based multiple.
  • EBITDA = Net Income + Interest + Taxes + Depreciation + Amortization — a fixed calculation, even though the inputs require judgment.
  • Enterprise Value = EBITDA × Multiple — the multiple is where industry, growth, and risk actually get factored in.
  • EBITDA is a non-GAAP measure, per SEC classification, so the underlying add-backs need documentation, not just a formula.

What's the Formula for EBITDA Itself?

EBITDA (earnings before interest, taxes, depreciation, and amortization) is calculated as: Net Income + Interest Expense + Taxes + Depreciation + Amortization = EBITDA. Each of those four add-backs removes a cost tied to financing decisions or accounting treatment, rather than to how the business actually operates — the goal is a number that lets you compare businesses with different debt loads or tax situations on equal footing.

What's the Formula for Turning EBITDA Into a Valuation?

Once you have EBITDA, the valuation formula is straightforward: Enterprise Value = EBITDA × Multiple. The complexity isn't in the arithmetic — it's in selecting a defensible multiple, which depends on industry, growth trend, and risk factors like owner dependency and customer concentration. See our guide to EBITDA valuation multiples by industry for typical ranges.

Is EBITDA a Legally Standardized Number?

No. The SEC classifies EBITDA as a non-GAAP financial measure, meaning there's no single mandated formula for exactly which adjustments count. In practice, this means the "add back interest, taxes, depreciation, and amortization" formula is standard, but judgment calls about additional normalizing adjustments — one-time expenses, above-market rent, and similar items — can legitimately vary between accountants.

How Is This Formula Different From the SDE Formula?

SDE's formula adds the owner's full compensation back as earnings, on top of the same interest, tax, depreciation, and amortization add-backs; EBITDA generally does not, instead treating a market-rate manager's salary as a real cost. See our full breakdown in SDE vs. EBITDA for a worked comparison of both formulas applied to the same business.

How Do You Apply This Formula to Your Own Business?

Pull your net income from your P&L, add back the four standard items, and document any additional normalizing adjustments with real records before you apply a multiple. See our EBITDA valuation calculator walkthrough for a full worked example with real numbers.

If you want help applying this formula correctly to your specific business, get in touch with Silver Surf.

FAQ

1. What is the basic EBITDA valuation formula?

Enterprise value equals EBITDA multiplied by a market-appropriate multiple. EBITDA itself equals net income plus interest, taxes, depreciation, and amortization.

2. Does the EBITDA formula include owner salary add-backs?

Not the way SDE does. EBITDA typically treats a market-rate manager's salary as a real expense rather than adding back the full owner's compensation as earnings.

3. Is the EBITDA formula the same in every industry?

The formula for EBITDA itself is consistent, but the multiple applied to it varies significantly by industry, growth rate, and risk profile.

4. Why might two accountants calculate different EBITDA for the same business?

Because EBITDA is a non-GAAP measure under SEC classification, there's no single mandated method — differences usually come down to which adjustments and add-backs each accountant includes.