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The Biggest Problem with EBITDA Multiples (And Why You're Being Undervalued)

EBITDA is the starting point, not the destination. Learn the hidden deductions that reduce your Equity Value at exit.

⊛ 4 min read | By Brent Morrison | November 2025

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The Blind Spot: Relying on the Multiplier

For ambitious entrepreneurs, the question of valuation often begins and ends with the EBITDA multiple. It is the most common and decisive method for established, profitable SMEs, based on the calculation: Enterprise Value = Adjusted EBITDA × Industry Multiple.

However, treating this figure as your guaranteed exit price is the most dangerous assumption a seller can make. The truth is that a buyer armed with comprehensive due diligence, will relentlessly challenge and deduct value from two critical areas: Adjusted EBITDA and the subsequent Enterprise-to-Equity Bridge. The core problem is that this method is typically backward-looking. Without proactive financial intelligence, you leave yourself vulnerable to a significant, surprise deduction, a financial flaw that can result in a 20-30% reduction in potential value during an exit.

“One of the marks of a really great partner is a business that invests the time to get under the skin of who you are as a business…”

Lizzie Jones


Challenge 1: The Myth of “Adjusted” EBITDA

Buyers are not interested in the historical EBITDA figure; they are interested in Adjusted EBITDA, which represents the true, sustainable profitability of the business for the new owner. The negotiation over these “adjustments” is where significant value can be lost if you are unprepared. You must control the narrative of your own profitability.

The Two Most Vicious Adjustments Buyers Will Make

Buyers focus on proving that your reported EBITDA is artificially inflated. They seek to “normalise” your profitability by focusing on items that will either disappear or increase under their ownership:

A. Discretionary and Non-Recurring Expenses

Buyers scrutinise your P&L to find owner-centric or one-off expenses (like personal perks, excessive salaries, or one-off legal fees) that will not be present after the sale.

The Outrise Proactive Solution: Our continuous monitoring identifies and quarantines these expenses years in advance. We structure your financials to prove, with clear documentation, what your sustainable, normalised EBITDA truly is, removing the buyer’s leverage.

B. The Missing “Normalised” Costs

Buyers will add back costs that you, the owner, may have been absorbing but that a professional management team will have to pay. They will insist on deducting a market-rate salary for the roles you performed (e.g., Sales Director, CEO) if you were paying yourself below market rate, or challenge low operational expenditure on items like IT.

The Outrise Proactive Solution: We benchmark your operational costs against industry norms, proactively adjusting your EBITDA model to align with what institutional buyers expect, reducing the element of surprise.


Challenge 2: The Multiple Is Not Fixed

The Industry Multiple (e.g. 5x EBITDA) is not a market commodity. It is a reflection of risk and predictability. Buyers pay a premium multiple for a low-risk, highly predictable, forward-looking business. They apply a discount multiple to a business that is:

  • Owner-Dependent: The business cannot run without the founder.
  • Customer-Concentrated: A large portion of revenue comes from a single client, creating systemic risk.
  • Reactive and Unpredictable: Lacks defensible, long-term cash flow projections.

Our Virtual CFO Service addresses these risks years in advance. We focus on structure, process, and early warning to increase your predictability and, therefore, your multiple.


Challenge 3: The Enterprise-to-Equity Trap (The Biggest Deduction)

Even if you successfully defend your Adjusted EBITDA, the biggest problem is the deduction that separates the Enterprise Value (EV) from your cash-in-hand equity value. This is the equity bridge, where buyers deduct net debt and implement the contentious working capital adjustment.

1. Debt and Debt-Like Items

The EV is paid on a “cash-free, debt-free” basis. All bank loans and overdrafts are deducted. Crucially, buyers also deduct “debt-like items”.

The Trap: These include significant accrued liabilities, unpaid expenses, or deferred income that the new owner will have to clear. Unprepared sellers are constantly surprised by how aggressively these items are valued and deducted.

The Outrise Proactive Solution: We provide predictive control and scenario planning to identify and minimise these debt-like items years before the sale, ensuring they do not reduce your final payout.

2. The Working Capital Deduction

Buyers demand a “normal” level of working capital be left in the business to ensure it continues operating smoothly post-acquisition.

The Trap: If the working capital in the business on the day of the sale is less than the historical average (the “target”), the buyer deducts the shortfall from the purchase price. This is often a last-minute deduction that catches founders completely off guard.

The Outrise Proactive Solution: Our continuous forecasting and decision confidence tools allow you to manage your cash flow and working capital actively against a pre-agreed target, eliminating this surprise deduction.


The Outrise Solution: Foresight Replaces Fear

Our strategic partnership is designed to tackle these three challenges head-on. We move the conversation from backward-looking compliance to proactive intelligence. This is the emotional payoff of our service:

  • Less Stress, Less Worry: You eliminate the fear of a financial surprise or a last-minute negotiation deduction.
  • Maximised Payout: Our disciplined preparation ensures that your financials are so clean and spot-on that due diligence is quick and easy, which removes the buyer’s incentive to “chip” the price.

“The real life change that I’ve experienced is less stress, less worry. We actually talk about other things at the dinner table rather than, you know, is there enough money in the bank?”

Michael & Hannah

HMDG

Your Next Decisive Action

Stop letting a historical metric define your future wealth. The EBITDA multiple is merely a suggestion; your final equity value is the result of focused, multi-year strategic preparation. Don’t wait until the buyer is at the table to discover why your business is being undervalued. Take proactive control of your financials today.

Common Questions About EBITDA Valuation

Why is relying on EBITDA multiples dangerous for selling a business?
Relying solely on EBITDA multiples is dangerous because buyers do not pay for historical data; they pay for Adjusted EBITDA. Without preparation, buyers will deduct "normalised" costs (like market-rate salaries) and apply an Enterprise-to-Equity deduction, often reducing the final payout by 20–30% compared to the headline figure.
What is the difference between EBITDA and Adjusted EBITDA?
Reported EBITDA is your historical profit. Adjusted EBITDA is the sustainable profitability for the new owner. Buyers will "normalise" this by adding back one-off expenses (increasing value) but, more aggressively, deducting costs you may have absorbed, such as proper market rates for the roles the owner performs (decreasing value).
What is the "Equity Trap" or Bridge in a business sale?
The "Equity Trap" is the deduction that sits between the Enterprise Value (the headline price) and the Equity Value (cash in your pocket). This primarily consists of net debt (bank loans) and "debt-like items" (such as accrued liabilities or deferred income) which the buyer insists on deducting from the final price.
How does the Working Capital Adjustment affect my deal?
Buyers set a "target" working capital based on your historical average. If your actual working capital on the day of the sale is lower than this target, the buyer deducts the difference from your purchase price pound-for-pound. This is a common surprise deduction for unprepared sellers.
How can I increase my EBITDA multiple?
Multiples reflect risk and predictability. To increase your multiple (and reduce the discount applied), you must demonstrate that the business is not Owner-Dependent, does not suffer from Customer Concentration risk, and has defensible, forward-looking cash flow projections rather than just historical data.

Close the Gap Between Valuation and Payout

You can avoid the most aggressive price deductions. Our strategic approach replaces…

  • Historical EBITDA with Defensible Adjusted EBITDA
  • Surprise Deductions with Proactive Working Capital Management
  • Valuation Risk with Maximised Equity Value at Exit

This is the strategic preparation that ensures your headline valuation becomes your high-confidence payout.

See Where You Stand

Stop letting the hidden deductions of an EBITDA sale hold your ambition back. It’s time to get a clear, forward-looking view.

Our 90-second assessment can help you identify if your current financial planning is leaving you vulnerable to being undervalued.

No obligation. Just honest answers about where you are and how to maximise your exit value.

Brent Morrison. Strategic accountancy partner at OutRise

ABOUT THE AUTHOR

Brent Morrison ACA CTA

Chartered Accountant and Chartered Tax Adviser

Member of the Institute of Chartered Accountants (ICAEW) and Taxation (CIOT) | Director at OutRise | He has over 12 years of experience advising high and fast growth companies across the UK. His approach combines a deep understanding of structuring data and systems, coupled with practical, real-world business experiences.

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