If EBITDA is the foundation of most valuation work, adjusted EBITDA is the metric that actually drives deal pricing. In investment banking and private equity, raw EBITDA is almost never used as-is. Instead, analysts adjust EBITDA to remove one-time, non-recurring, or non-operational items that distort the company’s true earning power. The result — adjusted EBITDA — is meant to reflect what the business would earn on a normalized, go-forward basis.
Understanding adjusted EBITDA is essential for investment banking interview prep and even more critical for live deal work. In this guide, we will cover what adjusted EBITDA is, the most common adjustments, why it matters for valuation, and how to think about it critically — because adjusted EBITDA is also one of the most subjective and frequently manipulated metrics in finance.
What Is Adjusted EBITDA?
Adjusted EBITDA starts with standard EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) and then adds back or removes items that are considered unusual, non-recurring, or not representative of the company’s ongoing operations. The goal is to arrive at a “clean” or “normalized” measure of operating profitability that better reflects what a buyer or investor can expect the business to generate in the future.
If you are not yet comfortable with how to calculate standard EBITDA, start with our step-by-step EBITDA guide before diving into adjustments.
The formula looks like this:
Adjusted EBITDA = EBITDA + Non-Recurring Charges – Non-Recurring Gains +/- Other Normalizing Adjustments
Common Adjusted EBITDA Add-Backs
Here are the most common adjustments you will encounter in practice and in interviews:
Restructuring Charges
Restructuring costs — such as severance payments, facility closure costs, and write-downs associated with organizational changes — are among the most common EBITDA adjustments. The logic is that these costs are one-time in nature and do not reflect the company’s ongoing operating expenses. Once the restructuring is complete, the company should have a lower cost base going forward.
However, it is worth noting that some companies seem to take “one-time” restructuring charges year after year, which raises questions about whether these costs are truly non-recurring.
Acquisition-Related Costs
Companies that complete M&A transactions incur transaction costs — advisory fees, legal fees, integration costs, and other one-time expenses related to the deal. These are typically added back to EBITDA because they would not recur in a normal operating year.
Stock-Based Compensation
As discussed in our guide on stock-based compensation in valuation, SBC is a non-cash expense that many practitioners add back to EBITDA. This is particularly common in technology, where SBC can represent a significant portion of total compensation. The counterargument is that SBC is a real economic cost that substitutes for cash compensation, so adding it back overstates true profitability.
Legal Settlements and Litigation Costs
Large, one-time legal settlements or unusual litigation costs are commonly added back because they are not expected to recur. However, for companies in industries with frequent litigation (such as pharmaceuticals or financial services), some level of ongoing legal cost may be part of normal operations.
Non-Recurring Gains or Losses
One-time gains (such as the sale of a non-core asset) or losses (such as a write-down of impaired assets) are removed because they do not reflect the company’s recurring earning power. The goal is to present a view of what the business generates in a “normal” year.
Management Fees and Owner Perquisites
In private company transactions, this is a major category. Private business owners often run personal expenses through the company — above-market salaries for family members, personal vehicles, travel, and other perks. These are added back because a new owner would not incur them. Similarly, management fees paid to private equity sponsors are added back in secondary buyouts.
Cost Savings and Synergies (Pro Forma Adjustments)
In M&A contexts, adjusted EBITDA may include projected cost savings or synergies that the buyer expects to realize after closing. For example, if a buyer plans to eliminate redundant corporate functions, the expected savings may be reflected as an EBITDA add-back. These are sometimes called “pro forma” adjustments and are among the most controversial because they involve forward-looking estimates rather than historical facts.
Why Adjusted EBITDA Matters for Valuation
Adjusted EBITDA is the metric that drives the EV/EBITDA multiple in most M&A transactions. When a banker or buyer says a company is trading at “8x EBITDA,” they almost always mean 8x adjusted EBITDA. The adjustment process directly affects how the company is valued, which is why it is so important — and so contentious.
Consider this example: a company reports EBITDA of $80 million, but after adding back $10 million in restructuring charges and $5 million in acquisition-related costs, adjusted EBITDA is $95 million. At a 10x multiple, the difference between using raw EBITDA ($800M enterprise value) and adjusted EBITDA ($950M enterprise value) is $150 million. Small adjustments can have an enormous impact on deal pricing.
The Quality of Earnings Report
Because adjusted EBITDA is so influential in deal pricing, buyers (especially private equity firms) commission a quality of earnings (QoE) report as part of their due diligence process. The QoE report is prepared by an independent accounting firm and scrutinizes every adjustment the seller has made to arrive at their adjusted EBITDA figure.
The QoE analysis typically:
- Verifies that reported financials are accurate
- Evaluates whether each EBITDA adjustment is truly non-recurring
- Identifies adjustments the seller may have overlooked (both positive and negative)
- Analyzes revenue quality, customer concentration, and working capital trends
- May add back adjustments the buyer accepts or remove ones they reject
The QoE-adjusted EBITDA figure often differs from the seller’s adjusted EBITDA — sometimes significantly. This is a common negotiation point in M&A transactions.
Adjusted EBITDA in Different Contexts
Investment Banking (Sell-Side)
When investment bankers are selling a company, they work with management to present adjusted EBITDA in the confidential information memorandum (CIM). The goal is to present the company’s earnings in the most favorable (but defensible) light. Bankers will include every legitimate add-back they can identify to maximize the adjusted EBITDA and, by extension, the implied valuation. This is sometimes referred to as “scrubbing” EBITDA.
Private Equity (Buy-Side)
PE firms take a more skeptical view of seller-adjusted EBITDA. They will scrutinize every adjustment, often pushing back on items they consider aggressive or unsubstantiated. The QoE process is the formal mechanism for this review, but experienced PE investors also develop an intuition for which adjustments are legitimate and which are “creative accounting.”
Debt Financing
Adjusted EBITDA also matters for debt covenants. Loan agreements often define financial covenants (such as maximum leverage ratios) based on adjusted EBITDA. The definition of “Adjusted EBITDA” in a credit agreement can be quite broad, allowing for a wide range of add-backs. This is sometimes called “covenant EBITDA” and can be significantly higher than the adjusted EBITDA used for valuation purposes. Understanding these dynamics is important for anyone interested in leveraged finance.
Red Flags in Adjusted EBITDA
Not all adjustments are created equal. Here are some red flags to watch for:
- Recurring “non-recurring” charges: If a company takes restructuring charges every year, they are arguably part of the cost of doing business, not one-time events.
- Adjustments that are a large percentage of EBITDA: If adjustments represent more than 20-30% of reported EBITDA, the quality of the adjusted figure becomes questionable.
- Forward-looking synergies with no detail: Pro forma synergy add-backs should be supported by specific, actionable plans. Vague promises of “operational improvements” are a red flag.
- Aggressive revenue normalization: Some sellers adjust for “lost” revenue from one-time events (like a product recall) by adding back the estimated lost revenue. This is highly subjective and often overstated.
- Inconsistency between periods: If the types of adjustments change significantly from year to year, it may indicate that management is cherry-picking which items to adjust.
Adjusted EBITDA in Investment Banking Interviews
“What is adjusted EBITDA?”
Adjusted EBITDA is standard EBITDA with further adjustments to remove non-recurring, one-time, or non-operational items. The goal is to arrive at a normalized view of a company’s ongoing operating profitability. Common add-backs include restructuring charges, acquisition costs, legal settlements, and stock-based compensation.
“Why is adjusted EBITDA important in M&A?”
Adjusted EBITDA is the basis for valuation in most M&A transactions. The EV/EBITDA multiple applied by buyers is typically based on adjusted EBITDA, so the level of adjusted EBITDA directly determines the company’s implied enterprise value. Small differences in adjustments can translate into large differences in deal pricing.
“Give me an example of an EBITDA adjustment you would push back on.”
A good example is restructuring charges that appear in the company’s financials every year for the past three to four years. While each individual restructuring may be labeled as “non-recurring,” the pattern suggests that restructuring is an ongoing cost of running the business. A buyer should be skeptical about adding back a charge that recurs annually.
The Bottom Line
Adjusted EBITDA is the metric that actually drives deal pricing in investment banking and private equity. Understanding the common adjustments, their rationale, and their limitations is critical for both interviews and deal execution. The best analysts approach adjusted EBITDA with a balance of optimism and skepticism — recognizing that while adjustments serve a legitimate purpose in normalizing earnings, they can also be used to paint an overly rosy picture. Building this judgment comes with practice and experience. For more on the valuation building blocks, explore our guides on how to calculate EBITDA, DCF analysis, and comparable company analysis, and check out our free course for a comprehensive overview of the skills you need to break into banking.
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Related Articles
- How to Calculate EBITDA: Step-by-Step Guide
- Valuation Multiples: EV/EBITDA and P/E Guide
- Walk Me Through a DCF
- How to Explain an LBO
- Stock-Based Compensation in Valuation
- Leveraged Finance Complete Guide
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