EBITDA Explained: Why Every Acquisition Uses It

You're reading an acquisition announcement. A private equity firm just bought a distribution company for $480 million, described as "12x EBITDA." You look up the company's financials. Net income last year was $11 million. At a 12x net income multiple, this company would be worth $132 million. But the deal closed at $480 million. The math doesn't add up until you understand what EBITDA is measuring and why buyers prefer it.

EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) is not a GAAP metric. It won't appear as a line item in any SEC filing. But it shows up in nearly every acquisition announcement, credit agreement, and enterprise valuation because it answers a specific question: what does this business earn before the capital structure, tax situation, and accounting for asset age get involved?

This post covers what each letter in EBITDA removes and why, how to calculate it two ways, why M&A uses EV/EBITDA instead of P/E, and where the metric breaks down.

This is a concept post. For the income statement mechanics needed to source the inputs, the financial statements guide covers those in detail. For the comparison between EBITDA and free cash flow, see the free cash flow explainer.

What EBITDA Strips Away (and Why)

EBITDA

Earnings Before Interest, Taxes, Depreciation, and Amortization. Measures operating cash-generating capacity independent of financing, tax, and non-cash accounting effects.

Enterprise Value (EV)

Market capitalization plus total debt minus cash. Represents the total acquisition cost of a business, not just equity.

EV/EBITDA

Enterprise value divided by EBITDA. The standard M&A valuation multiple, preferred over P/E because it neutralizes capital structure and tax differences.

Adjusted EBITDA

EBITDA with additional items added back (stock-based comp, restructuring, one-time charges). No standard definition exists.

The four items removed from earnings each serve a specific purpose in making businesses comparable:

Interest (the I in EBIT): Interest expense depends on how much debt a company carries. Two identical businesses, same revenue, same operations, can have very different net incomes if one is financed with debt and one with equity. M&A buyers strip out interest because they're acquiring the business operations, not the current capital structure. They'll refinance with their own debt at their own cost.

Taxes: Tax rates vary by jurisdiction, entity structure, and available tax losses. A company with accumulated losses from prior years might pay near-zero taxes while an identical competitor pays the statutory rate. Removing taxes makes cross-company comparisons cleaner and reflects what the business would earn under a neutral tax assumption.

Depreciation: Depreciation is a non-cash charge that reflects the gradual write-down of physical assets purchased in the past. Two companies with the same equipment might show different depreciation expenses if they bought the assets in different years at different prices. Removing depreciation eliminates this historical cost distortion.

Amortization: Amortization typically reflects the write-down of intangible assets, patents, customer relationships, trademarks, and crucially, goodwill from prior acquisitions. When a company acquires another for a premium, the excess purchase price is allocated to intangibles and amortized over years. This creates accounting charges with no cash equivalent that depress net income without reflecting current operating performance.

Together, these adjustments produce a number that represents the cash-generating capacity of the business operations themselves, independent of financing choices, tax position, and accounting for past investment.

Two Ways to Calculate EBITDA

There are two equivalent approaches when Method 1 includes the full net non-operating bridge. Method 2 is cleaner for public companies because operating income is reported directly.

Method 1 (from Net Income):

EBITDA = Net Income + Income Tax + Net Non-operating Expense + D&A

Method 2 (from Operating Income):

EBITDA = Operating Income + D&A

Operating income sits before net non-operating items and income tax, so you only need to add back D&A. A simplified Method 1 that adds gross interest expense works only when other non-operating items are zero or separately reconciled.

Worked example: Microsoft FY2024

Line	Amount
Operating Income	$109.433B
+ Depreciation & Amortization (canonical field)	+$15.200B
= EBITDA	$124.633B

Microsoft's cash flow statement also contains a broader $22.287B line labeled "Depreciation, amortization, and other." Do not treat that entire line as pure D&A: the unspecified "other" component would inflate EBITDA. This example uses Fundamentals Hub's $15.2B canonical depreciation_amortization field consistently.

Via Method 1: Net Income $88.136B + Income Tax $19.651B + Net Non-operating Expense $1.646B + D&A $15.200B = $124.633B. The $1.646B bridge captures the net effect of interest and other non-operating items: $109.433B - ($88.136B + $19.651B). Both methods therefore produce the same EBITDA. Method 2 remains the cleaner standard because operating income already isolates the operating result.

One practical note: D&A is not always a single line on the income statement. It's often scattered across cost of revenue and operating expenses, or disclosed only in the cash flow statement as an addback to net income. The cash flow statement is the reliable source.

EV/EBITDA: Why M&A Uses This Multiple

The price-to-earnings (P/E) ratio compares stock price to net income per share. For M&A and private business valuation, P/E is problematic: it's sensitive to capital structure, tax rates, and accounting choices. EV/EBITDA neutralizes all three.

Enterprise Value (EV) represents the total acquisition price, not just equity, but all claims on the business:

Enterprise Value = Market Cap + Total Debt - Cash & Equivalents

For a leveraged buyout, EV is what the acquirer is paying in total (equity paid plus debt assumed, minus cash acquired). Using EV in the numerator and EBITDA in the denominator creates a ratio that reflects the full cost of acquiring the business relative to its operating cash generation. In the Microsoft example below, cash available to offset the acquisition cost includes cash, cash equivalents, and short-term investments.

Microsoft at its June 2024 fiscal year-end:

• Market cap: ~$3,285B
• Total debt: $44.937B
• Cash, cash equivalents, and short-term investments: $75.543B
• Enterprise Value: ~$3,254B
• EV/EBITDA: ~$3,254B / $124.6B = 26.1x

That 26.1x multiple reflects Microsoft's premium as a dominant software platform with high recurring revenue and low capital requirements. Compare against typical M&A transaction multiples by sector:

Sector	Typical M&A EV/EBITDA Range
Software / SaaS	15-30x
Consumer goods	8-14x
Manufacturing	6-10x
Distribution / Logistics	5-9x
Utilities	8-12x

The distribution company from the opening, acquired at 12x EBITDA with $40M in EBITDA, falls squarely in the distribution sector range. Net income of $11M is low because the company carries debt and depreciates a fleet of trucks. EBITDA of $40M represents the actual cash-generating capacity before those financing and accounting items.

(Fundamentals Hub returns ebitda as a pre-computed field in every API response, derived from operating income + D&A. You can try the free tier here.)

Where EBITDA Misleads You

EBITDA's blind spots are as important as its uses.

It ignores capital expenditures. A cable company and a software company can have identical EBITDA but radically different capital requirements. The cable company needs to spend hundreds of millions each year on network maintenance just to keep its EBITDA flat. The software company spends almost nothing. EBITDA treats them identically. Free cash flow (covered in detail in the free cash flow explainer) is the metric that captures this difference.

Depreciation is sometimes a real cost. The whole point of removing D&A is that it's "non-cash." But for businesses that depend on physical assets, manufacturing equipment, aircraft, restaurant kitchens, depreciation is a proxy for real replacement costs. When those assets wear out, the cash actually has to go out the door. Warren Buffett famously criticized EBITDA on this basis: "Does management think the tooth fairy pays for capital expenditures?"

Working capital is invisible. A company can have strong EBITDA while building up receivables and inventory that tie up cash. This is particularly relevant in seasonal businesses or rapid-growth periods. EBITDA says nothing about it.

Interest expense matters when debt is high. In a leveraged buyout, the acquired company takes on significant debt. The EBITDA multiple was used to price the deal, but the company still has to service that debt from actual earnings. If EBITDA is $40M and debt service is $30M, there's very little margin for error.

Adjusted EBITDA: The Number Companies Prefer

Public companies and private equity sellers routinely report "Adjusted EBITDA," EBITDA with additional items added back. Common adjustments include:

• Stock-based compensation: Some argue SBC is not a "real" cash cost. Others (correctly) point out that dilution is genuine even if cash doesn't leave the building.
• Restructuring charges: One-time costs for layoffs, facility closures. Companies that restructure repeatedly make this "one-time" adjustment less convincing.
• One-time legal settlements or write-offs: Legitimate if genuinely non-recurring; a red flag if it appears every year.
• Pro forma adjustments for acquisitions: "As if we'd owned this acquisition for the full year." Reasonable in some contexts, optimistic in others.

Adjusted EBITDA has no standard definition. Two companies in the same industry will add back different things, making comparison treacherous. When evaluating adjusted EBITDA, always ask what percentage of the adjustment consists of recurring items versus genuinely non-recurring ones.

A useful rule of thumb: if a company's adjusted EBITDA is more than 20-30% above its standard EBITDA, scrutinize the addbacks closely. Most healthy businesses don't need that much adjustment.

Finding EBITDA Data

From SEC filings: EBITDA does not appear as a reported line. Build it from operating income plus D&A. Operating income is on the income statement (XBRL tag: OperatingIncomeLoss). D&A is disclosed in the cash flow statement as an addback to net income, or in the notes. Do not automatically substitute a broader line containing "and other" without identifying the other adjustments.

From financial data APIs: Some APIs return EBITDA as a pre-computed field; others require you to derive it from operating income and D&A. If deriving it yourself, check whether the API returns D&A as a separate field or buries it in the cash flow section.

The SEC EDGAR API guide covers how to pull operating income and D&A directly from XBRL if you want to build the derivation from raw filings.

Fundamentals Hub returns ebitda as a pre-computed field for 8,000+ companies across FY, Q, and TTM periods. You can try the free tier here.