EBITDA is a measure of a company’s earnings before interest, taxes, depreciation, and amortization. It strips out financing costs, tax bills, and non-cash accounting charges to show what a business earns from its core operations alone. That single figure drives most acquisition pricing, sets the thresholds inside corporate loan agreements, and now directly affects how much interest expense a business can deduct on its federal tax return.
How to Calculate EBITDA
The calculation starts with net income and adds back four line items that obscure operating performance:
EBITDA = Net Income + Interest + Taxes + Depreciation + Amortization
Each add-back has a reason. Interest expense reflects how the business is financed, not how well it runs. Income taxes depend on jurisdiction and planning choices. Depreciation spreads the cost of physical assets like equipment and buildings across their useful lives, and amortization does the same for intangibles like patents or acquired customer relationships. None of the four tells you much about whether the company is good at making and selling things.
A second path reaches the same number from higher up the income statement: start with operating income (EBIT) and add back only depreciation and amortization. Either method produces the same figure. Which one you use usually depends on which lines are easiest to pull from the statements in front of you.
EBITDA Margin
Dividing EBITDA by total revenue produces the EBITDA margin, expressed as a percentage. Raw EBITDA tells you the dollar amount of operating earnings. The margin tells you how much of each revenue dollar survives as operating profit. A business with $50 million in revenue and $15 million in EBITDA has a 30% EBITDA margin.
Margins vary sharply by industry. Capital-light software companies regularly clear 30% to 40%. Grocery retailers and restaurants often run in the single digits. Comparing a company’s margin against direct competitors shows whether management runs a tighter operation. Tracking the same company’s margin over several years reveals whether efficiency is improving or slipping, which raw EBITDA growth can hide when revenue is also climbing.
Why Analysts and Lenders Use EBITDA
The metric puts companies on equal footing regardless of how they’re financed, where they’re headquartered, or how aggressively their accountants depreciate assets. Two companies selling the same product at similar volumes can report wildly different net incomes because one carries heavy debt and the other was funded with equity. Adding interest back neutralizes that gap. Stripping taxes out removes the effect of operating in different countries with different rates. Removing depreciation focuses the comparison on actual output rather than accounting judgments about asset lives.
That’s why EBITDA anchors two of the most common numbers in corporate finance. In mergers and acquisitions, the Enterprise Value to EBITDA multiple is the standard valuation shorthand. If comparable businesses recently sold at 12 times EBITDA, that multiple becomes the starting point for negotiations. As of January 2026, the median EV/EBITDA multiple across U.S. sectors with positive EBITDA sat near 20x, though it varies enormously by industry and market conditions.
Lenders lean on EBITDA just as heavily. Banks structure loan agreements around leverage ratios, most commonly Total Debt to EBITDA, that borrowers must stay under to avoid a technical default. These thresholds typically sit between 3x and 5x depending on the industry and the borrower’s risk profile. A ratio below 3x generally signals comfortable debt capacity, while anything above 4x draws closer scrutiny.1Journal of Accountancy. Keeping Covenants: Getting Debt Ratios Right The definition of EBITDA used inside those covenants matters more than most borrowers realize; disputes over allowable add-backs have triggered defaults that had nothing to do with the company’s actual financial health.
Adjusted EBITDA and Add-Backs
Raw EBITDA rarely survives first contact with a real transaction. In practice, buyers and sellers negotiate over “Adjusted EBITDA,” which layers additional add-backs onto the base figure to reflect what the business would earn under normalized conditions. Some adjustments are defensible:
- Owner compensation above market rate. A private business owner paying themselves $800,000 when a replacement executive would cost $300,000 creates $500,000 in add-back.
- One-time legal or restructuring costs, such as a lawsuit settlement or facility closure that won’t recur under new ownership.
- Related-party rent above market, when the company leases space from the owner’s separate real estate entity.
- Non-recurring write-downs from a one-time event, like inventory obsolescence or bad debt.
Trouble starts when sellers treat every inconvenient expense as non-recurring. A company that reports “one-time” restructuring charges three years running isn’t really experiencing one-time events. Experienced buyers scrutinize each add-back and often reject or discount a meaningful share of them. If adjusted EBITDA runs more than 20% to 30% above the unadjusted figure, question every line.
SEC Rules for Reporting EBITDA
EBITDA is not defined under Generally Accepted Accounting Principles, so companies have significant latitude in how they calculate and present it.2Thomson Reuters. Consider Developing a Standard Definition of EBITDA for U.S. GAAP, FASB Advisers Say For public companies, that latitude has limits. Under Regulation G, any registrant that publicly discloses a non-GAAP financial measure like EBITDA must present the most directly comparable GAAP measure alongside it and provide a quantitative reconciliation showing how the two numbers connect.3eCFR. 17 CFR 244.100 – General Rules Regarding Disclosure of Non-GAAP Financial Measures For EBITDA, the comparable GAAP measure is almost always net income, and the reconciliation walks through each add-back line by line.
The SEC also prohibits companies from adjusting non-GAAP performance measures to remove charges labeled “non-recurring” if similar charges appeared within the prior two years or are reasonably likely to recur within the next two.4Securities and Exchange Commission. Conditions for Use of Non-GAAP Financial Measures Enforcement is real. The SEC assessed a $1.3 million penalty against Koppers Holdings for manipulating its reported net debt reduction relative to adjusted EBITDA by withholding tens of millions in overdue vendor payments.5Securities and Exchange Commission. SEC Charges Koppers Holdings Inc. for Materially Misleading Non-GAAP Financial Measures When reading a public company’s earnings release, find the reconciliation table. Its absence is itself a red flag. A long list of creative add-backs bridging net income to adjusted EBITDA deserves skepticism.
How EBITDA Now Affects the Interest Deduction
EBITDA plays a direct role in how much interest expense a business can deduct on its federal tax return. Under Section 163(j) of the Internal Revenue Code, the deduction for business interest expense is generally capped at 30% of the taxpayer’s adjusted taxable income (ATI).6Office of the Law Revision Counsel. 26 USC 163 – Interest
The definition of ATI shifted for 2025 and beyond. From 2022 through 2024, ATI was calculated on an EBIT basis; depreciation, amortization, and depletion were not added back, which tightened the cap for capital-intensive businesses. Starting with tax years beginning after December 31, 2024, legislation restored the add-back of depreciation, amortization, and depletion, effectively returning ATI to an EBITDA-based measure.7Internal Revenue Service. Questions and Answers About the Limitation on the Deduction for Business Interest Expense A company with high depreciation charges now has a higher ATI, and 30% of that larger number permits more interest to be deducted. Businesses that were bumping against the cap under the EBIT-based rules, particularly in manufacturing, real estate, and energy, get meaningful relief.
What EBITDA Leaves Out
EBITDA’s biggest blind spot is capital expenditures. The metric adds back depreciation on the theory that it’s a non-cash charge, but the assets being depreciated will eventually need replacing, and replacement costs real money. A business reporting strong EBITDA while spending every dollar it generates on aging equipment isn’t profitable in any meaningful sense.
It helps to separate maintenance CapEx, which keeps existing operations running, from growth CapEx, which funds new capacity, locations, or product lines. A rough split: the portion of total CapEx roughly equal to depreciation approximates maintenance spending, and anything above that likely represents growth investment. Companies with maintenance CapEx consuming most of their EBITDA leave very little free cash flow for debt repayment, dividends, or reinvestment.
EBITDA also ignores changes in working capital. A fast-growing company can report impressive EBITDA while hemorrhaging cash because it’s funding a buildup of inventory or extending generous payment terms to customers. That cash is tied up in the business and unavailable for anything else.
To get closer to reality, analysts subtract capital expenditures, cash taxes, and changes in working capital from EBITDA to arrive at free cash flow. Free cash flow is what actually pays lenders, returns capital to shareholders, or funds acquisitions, and it’s what gets modeled in a discounted cash flow valuation. EBITDA is the starting point, not the answer. It tells you quickly whether a business generates meaningful operating earnings and lets you compare across companies without financing and accounting noise. Every serious analysis moves past it to examine what the business actually needs to spend to sustain itself.