What Is EBITDA and How to Calculate It

EBITDA is earnings before interest, taxes, depreciation, and amortization. It strips out financing and non cash charges to approximate the cash operating profit of a business. Analysts use it to compare companies with different capital structures and to anchor valuation multiples such as EV/EBITDA, so building it cleanly and traceably in a model matters more than most single line items.

Definition and the two build-ups

There are two equivalent ways to reach EBITDA, and a clean model usually shows both so they cross check each other.

Top down you start from operating income, also called EBIT, and add back the non cash charges: EBITDA = Operating Income + Depreciation + Amortization.

Bottom up you start from the very last line of the income statement and rebuild: EBITDA = Net Income + Interest + Taxes + Depreciation + Amortization. Both routes land on the same figure when the statements tie out, because the difference between net income and operating income is exactly interest and taxes.

Worked example in Excel

Suppose operating income sits in B5 and depreciation and amortization in B6. The top down formula is a single addition, and you sanity check it against the bottom up route below.

1. Enter =B5+B6 in B7 for the top down EBITDA.
2. Build the bottom up check as =B1+B2+B3+B6 where B1 is net income, B2 is interest, B3 is taxes.
3. Confirm both cells return the same number. A gap means a statement does not tie, not that EBITDA has two values.

=B5+B6 returns 150, and the bottom up sum of 60 + 25 + 35 + 30 also returns 150.

Why analysts use it

EBITDA approximates operating cash generation before capital structure and tax, so it compares businesses on a like for like basis even when one is heavily debt financed and another is not.

It anchors the EV/EBITDA multiple, the most common valuation shorthand in deal work, because enterprise value and EBITDA both span all providers of capital.

• Neutralizes financing differences so leverage does not distort the comparison.
• Feeds the EV/EBITDA multiple used across mergers and acquisitions.
• Proxies cash operating profit, though it is not actual cash flow.

Limitations and adjusted EBITDA

EBITDA ignores capital expenditure and working capital, so a capital heavy business can look healthier than the cash it actually generates. A telecom or airline burns cash on assets that EBITDA never sees.

Adjusted EBITDA adds back items management labels as one time or non recurring, such as restructuring or stock based compensation. Treat large or recurring adjustments skeptically, because the addback line is where aggressive presentation tends to hide. If the same charge appears every year, it is not really one time.