Why Reported EBITDA in a Private Business Is Almost Always Wrong
Private companies don’t produce financial statements for investors. They produce them for tax authorities, banks, and their accountants. That single fact explains most of what makes private company EBITDA unreliable as a starting point for valuation.
The owner of a private business makes hundreds of decisions every year that affect the P&L, not to accurately represent the economics of the business, but to minimise tax, manage personal cash flow, and run the business in whatever way suits their personal situation. None of that is improper. It’s simply the reality of private ownership. But it means the reported EBITDA is shaped by those decisions in ways that need to be unwound before the number means anything to a buyer.
Normalisation is the process of moving from one to the other. It involves two directions of adjustment, adding back items that reduce reported EBITDA but aren’t real economic costs of running the business, and deducting items that inflate reported EBITDA but aren’t genuinely recurring. Both directions matter. Both require scrutiny. And both are places where sellers and buyers routinely disagree.
The Add-Back Categories and How to Challenge Each One
Here are the main categories of add-backs, what makes each one legitimate or challengeable, and the questions worth asking before you accept any of them.
| Category | Description | Key Risk | Recommended Approach |
|---|---|---|---|
| 1. Owner Compensation Above Market Rate | Private business owners often pay themselves based on tax efficiency rather than a true market salary. If an owner takes £150,000 while a replacement CEO would cost £90,000, the £60,000 difference may be a legitimate add-back. | Sellers often underestimate the real cost of replacing themselves. A competent GM with P&L responsibility may require higher compensation, benefits, and employer costs than assumed. | Partially legitimate. Accept the add-back only after independently validating the replacement cost rather than relying on the seller’s estimate. |
| 2. Genuine One-Off Costs | Non-recurring expenses such as lawsuit settlements, emergency repairs after a fire, or a one-time restructuring project can be valid add-backs if they are truly exceptional. | “One-off” is frequently abused. Costs may reappear under different descriptions, vendors, or accounting categories across multiple years. | Challenge immediately if the same or a similar expense appears in any previous year, regardless of how it is labeled. |
| 3. Related-Party Transactions at Non-Market Rates | Owners may run personal expenses through the business or transact with related entities (e.g., family-owned suppliers, personally owned real estate). Some adjustments can be legitimate if costs are not reflective of market rates. | Related-party arrangements may not survive ownership transfer. Costs that are artificially low today may increase post-acquisition when renegotiated at arm’s length. | Assess using market rates, not historical related-party rates. Focus on what the expense will be under new ownership. |
| 4. Non-Cash Charges & Depreciation Adjustments | EBITDA excludes depreciation and amortization, but accounting depreciation schedules often reflect tax strategy rather than actual asset replacement cycles. | EBITDA can overstate true cash generation, especially in capital-intensive businesses where maintenance capex exceeds accounting depreciation. | Do not rely on EBITDA alone. Analyze historical capex, asset age, and future maintenance requirements to determine real cash flow. |
| 5. Seller-Claimed Discretionary Costs | Sellers may classify spending on marketing, training, product development, or systems as discretionary because a new owner could choose to stop spending. | These expenses often drive growth and operational performance. Removing them may reduce future revenue and earnings. | Challenge every discretionary add-back. Ask: What happens to revenue if this spend stops? If revenue is likely to decline, the add-back is not clean. |
The Deductions Sellers Don’t Volunteer
Most sellers present an add-back schedule. Very few present the deductions that belong on the other side of the bridge. These need to be identified and applied by the buyer — and they are the adjustments that most commonly get missed under time pressure.
| Deduction type | What to look for | How to find it |
|---|---|---|
| Non-recurring revenue | Large one-off projects, government grants, insurance receipts inflating the revenue line | Revenue breakdown by customer and type across multiple years — does any item appear in one year but not others? |
| Below-market cost arrangements | Related-party rents, services, or loans at non-market rates that will normalise post-close | Related-party schedule in the accounts — compare each line to market rates for equivalent arrangements |
| Deferred costs | Maintenance, software renewal, staff costs deferred in the run-up to sale | Compare capex and operating cost run-rates in the final 12 months against the prior two years |
| Understated cost of sales | Supplier arrangements that will not persist under new ownership | Key supplier contracts — are any pricing terms conditional on the current owner relationship? |
| Timing manipulation | Revenue pulled forward or costs pushed back to improve the final year EBITDA | Monthly management accounts — look for unusual revenue concentration in Q4 of the final year |
How AI Changes the Quality of This Analysis
EBITDA normalisation is time-consuming precisely because the evidence for each adjustment is scattered. The owner compensation is in the accounts. The replacement cost benchmark requires external research. The one-off cost needs to be cross-referenced against prior years. The related-party rent needs to be compared against market rates. The non-recurring revenue item needs to be tracked across the customer revenue schedule.
Each of those tasks is manageable individually. Together, across a full data room, under time pressure, they consume days of analyst time and the risk of missing something grows with every hour of fatigue.
Kudra reads the full document set simultaneously and applies consistent scrutiny to every line of the seller’s add-back schedule. It tracks whether a “one-off” cost appeared in prior years. It flags related-party arrangements that may be understating true costs. It identifies revenue items that appear in a single year without explanation. It cross-references the compensation figures against the full package of owner benefits visible across all documents not just the salary line in the P&L.
“The seller’s add-back schedule is an argument, not a fact. Kudra reads the evidence behind each line (across every document in the data room) so you know which arguments hold up and which ones to push back on before you anchor on a price.”
The output is a normalisation bridge you can defend grounded in the actual documents, with specific evidence for each adjustment you’ve accepted and a clear rationale for each one you’ve challenged. That’s the analytical foundation that serious investors expect, and the negotiating position that protects you at the table.
