What is EBITDA and How Do You Calculate It?

If you've ever applied for a business loan, spoken with an investor, or looked at a company acquisition, you've almost certainly heard the word EBITDA. It's one of the most widely used financial metrics in business — and one of the most misunderstood.

This guide explains exactly what EBITDA is, how to calculate it two different ways, what the numbers mean, and when you should and shouldn't rely on it.

What Does EBITDA Stand For?

EBITDA stands for Earnings Before Interest, Taxes, Depreciation, and Amortization. It's a measure of a company's core operating profitability — how much cash the business generates from its day-to-day operations before accounting for financing decisions and accounting treatments.

Breaking it down:

• Earnings — the profit your business makes
• Before Interest — ignores how the business is financed (loans vs equity)
• Before Taxes — ignores the tax structure (which varies by jurisdiction)
• Before Depreciation — adds back the non-cash write-down of physical assets
• Before Amortization — adds back the non-cash write-down of intangible assets

Why Do Banks and Investors Use EBITDA?

EBITDA is used for three main purposes:

1. Business valuation — Most small and mid-size businesses are sold for a multiple of EBITDA (e.g., "3× EBITDA"). It's the standard starting point for any M&A deal.
2. Loan underwriting — Banks use EBITDA to calculate your Debt Service Coverage Ratio (DSCR). SBA loans typically require a DSCR of 1.25 or higher, meaning your EBITDA must be 1.25× your annual debt payments.
3. Performance comparison — EBITDA lets you compare profitability across companies in the same industry regardless of their capital structure or tax situation.

How to Calculate EBITDA — Two Methods

There are two ways to calculate EBITDA, and both should give you the same answer:

Method 1: Bottom-Up (from Net Income)

Start with your net income (the bottom line of your income statement) and add back the four items:

Method 2: Top-Down (from Revenue)

Start with revenue and subtract only the cash operating expenses — leave out depreciation and amortization:

Use bottom-up when you have a completed income statement. Use top-down when building a forecast or financial model.

Real Worked Example

Let's say you own a small manufacturing business. Here's what your income statement shows:

Now calculate EBITDA using the bottom-up method:

The EBITDA margin = $290,000 ÷ $1,200,000 = 24.2% — which is a strong result for a manufacturing business.

EBITDA Margin — What Is Good?

EBITDA margin = EBITDA ÷ Revenue × 100. It tells you what percentage of revenue becomes operating cash. Here are typical ranges by industry:

Industry	Typical EBITDA Margin	EV/EBITDA Multiple
Retail / E-Commerce	3–8%	4–6×
Restaurant / Food Service	8–14%	4–7×
Manufacturing	10–18%	5–8×
Construction / Contracting	5–12%	4–7×
Healthcare / Medical	12–22%	7–12×
Business Services	12–20%	7–11×
Technology / SaaS	15–35%	10–20×
Financial Services	25–45%	10–16×

Adjusted EBITDA Explained

Adjusted EBITDA adds back one-time, non-recurring items that distort the true picture of ongoing profitability. It's commonly used in M&A and investor presentations.

Common add-backs for Adjusted EBITDA:

• Owner compensation above market rate — If an owner pays themselves $300K but a market-rate CEO would earn $180K, the $120K difference is added back
• One-time expenses — Lawsuit settlements, restructuring costs, one-time marketing campaigns
• Non-cash stock compensation — Common in startups
• One-time revenue removed — PPP loan forgiveness, insurance proceeds, asset sale gains

Using EBITDA to Value a Business

The most common way to value a small business is: Enterprise Value = EBITDA × Industry Multiple

Using our ABC Manufacturing example:

• EBITDA: $290,000
• Manufacturing multiple: ~6×
• Implied enterprise value: $290,000 × 6 = $1,740,000

Limitations of EBITDA

Warren Buffett famously called EBITDA a "dangerous" metric. Here's why you shouldn't rely on it in isolation:

• Ignores capital expenditures (CapEx) — A manufacturing business might need $200K/year in equipment just to maintain operations. EBITDA ignores this entirely.
• Ignores working capital — Cash can be tied up in inventory and receivables. EBITDA doesn't show this.
• Can be manipulated — Aggressive "adjustments" can make a poorly-performing business look healthy. Always scrutinize what's being added back.
• Doesn't reflect actual cash taxes — The income tax you add back is the accounting entry, not what the business actually paid to the IRS.

The best approach: use EBITDA as a starting point for comparison and valuation, then validate it with free cash flow, DSCR, and actual cash tax analysis.

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