EBITDA Adjustments and Normalization in Private Credit Underwriting: A Practitioner’s Framework for Separating Sustainable Earnings from Seller Narrative

The Underwriting Question Every Credit Officer Must Answer

A sponsor presents a manufacturing company with $12 million of reported EBITDA. The seller’s adjustment schedule adds back $4.2 million in “non-recurring” items — litigation settlements, a one-time ERP implementation, excess owner compensation, and projected cost synergies from a recent tuck-in acquisition. If the lender accepts the schedule at face value, the credit is underwritten at a 4.8x leverage multiple. If it doesn’t, leverage climbs to 8.2x — the difference between an investable credit and a distressed situation waiting to happen.

This is the central tension in private credit underwriting today. As one practitioner-focused analysis frames it, covenant definitions may permit adjustments that a credit officer still haircuts for underwriting conservatism, and the cleanest credit memo shows both borrower-adjusted EBITDA and lender-adjusted EBITDA, with a clear bridge between them. Getting that bridge right is not a stylistic preference — it is the primary risk management act in the entire underwriting process.

The stakes are material. According to Moody’s Analytics, the private credit default rate in 2025 likely ranged between 1.6% and 4.7%, depending on whether distressed exchanges are included, with distressed restructurings accounting for approximately 65% of all defaults that year. Inflated EBITDA at origination is one of the most consistent precursors to that distress. This article provides a practitioner’s framework for doing the work correctly.

The Framework: A Four-Layer EBITDA Normalization Stack

Experienced credit underwriters do not evaluate a single “adjusted EBITDA.” They build a layered analysis that moves from reported financials to defensible, lender-determined earnings in discrete, documented steps. The four-layer stack below is the operative structure.

Layer 1 — Reported EBITDA (The Starting Point, Not the Answer)

Begin with the company-prepared income statement, tied directly to the general ledger and reconciled to bank statements. This is the only number that has not yet been touched by seller incentives. Seller-provided schedules are viewed by lenders as a starting point, not a conclusion.

Layer 2 — Normalization Adjustments (Historical Distortions Only)

Normalization adjustments eliminate distortions in reported historical results and seek to reflect true business profitability, providing buyers with a proper baseline to evaluate business projections. The operative word is historical. Defensible normalization adjustments include:

• Excess owner compensation: Documented with a market-rate benchmark (e.g., Robert Half, Radford, or comparable CEO search offers). Valid only when the replacement cost is clearly supportable.
• Related-party rent normalization: Documented using third-party comparable market rents (CoStar, LoopNet, or a licensed broker opinion). Buyer pushback is minimal when the comparable is documented.
• Genuine one-time expenses: Litigation settlements with final resolution documentation, discrete system implementations, or casualty losses — items with a clear start and end date and no expected recurrence.
• Non-cash charges: Stock-based compensation, non-cash impairments, or amortization of intangibles where cash economics are clearly different from GAAP treatment.

The core add-backs lenders commonly accept fall into a few categories: excess owner compensation, documented one-time expenses, non-cash charges, and market-rate normalization for related-party costs. Even then, the amount matters as much as the category — a lender should rarely accept the borrower’s number without testing what must remain in the business.

Layer 3 — Pro Forma Adjustments (Future Savings, Strictly Scrutinized)

Normalized EBITDA reflects what the business did earn on a representative historical basis. Adjusted EBITDA, as used in some private equity underwriting contexts, can include additional pro forma assumptions about what the business could earn under future ownership. These are not the same thing. When a seller’s schedule blends both, they must be separated and evaluated independently.

For pro forma items to survive lender scrutiny, execution evidence must exist: executed vendor renegotiations with new pricing, signed headcount reductions with severance math, and terminated leases with effective dates all support inclusion. What fails the test: “what EBITDA would have been” at peak margins is not pro forma — it is imaginary.

Layer 4 — Lender-Determined EBITDA (The Underwriting Basis)

This is the number that drives covenant definitions, leverage calculations, and debt capacity analysis. It should be conservative, documented, and reproducible by any future reviewer of the credit file. Unsupported or aggressive add-backs are routinely removed during underwriting.

Walking the Calculation: A $10M EBITDA Manufacturing Example

Consider Apex Precision Components, a mid-market industrial manufacturer with $48M in revenue. The seller’s QoE report presents the following adjustment schedule:

The $1.48 million gap between the seller’s $10.34M and the lender’s $8.86M is not cosmetic. On a 5.0x leverage deal, it represents $7.4 million in excess debt capacity the borrower claimed — and that the lender appropriately denied.

Key Ratios at Lender EBITDA vs. Seller EBITDA

• Total Debt / EBITDA: Seller basis = 4.8x  |  Lender basis = 5.6x
• DSCR (at 7.5% all-in rate, 7-year amort): Seller basis = 1.48x  |  Lender basis = 1.22x
• Interest Coverage: Seller basis = 3.1x  |  Lender basis = 2.6x

Most lenders want to see a DSCR of at least 1.2x to 1.25x. At lender-adjusted EBITDA, this credit lands just above the floor — with limited margin for a revenue shortfall or cost increase. The seller-presented basis masked the true tightness of the structure.

If the cost is needed to generate revenue, serve customers, meet compliance requirements, or maintain the asset base, it should remain in EBITDA. This principle, applied consistently, is what separates disciplined underwriting from deal-motivated credit approval.

Industry Standards, Market Data, and Red Flags

What Institutional Lenders Look For

In 2026, underwriting requires validating assumptions, stress-testing cash flow under various scenarios, and ensuring that the capital structure is resilient enough to withstand economic volatility. The current market has reset leverage norms: typical leverage in 2023–2025 ran 4.5x to 5.5x, with cash flow mattering again and deal structures normalizing after years of covenant erosion. Senior lenders are holding the line at 5.0x to 5.5x, and structures requiring 6.5x or more have largely become unfinanceable at institutional quality lenders.

IOSCO’s review of leveraged lending practices found that EBITDA adjustments in current transactions are subject to add-backs of 15–30% of reported EBITDA, and that these add-backs are uncertain both in magnitude and timing, and may overstate EBITDA and thus understate debt-to-EBITDA leverage multiples. S&P Global Ratings has documented this systematically: add-backs have run at a median of approximately 28% of management-adjusted EBITDA at deal inception, with expected synergies and cost savings the single largest category.

Red Flags in EBITDA Adjustment Schedules

Experienced underwriters are alert to the following patterns, each of which should trigger immediate heightened scrutiny or outright rejection:

• Recurring items labeled non-recurring: Wage increases, utilities, and input cost inflation are ordinary course unless replaced by contracts at locked rates. A cost that returned three years in a row is not a one-time event.
• Growing add-back packages in successive amendments: Growing add-back packages in successive amendments show a company managing the covenant rather than the business — one of the clearest leading indicators of a deteriorating credit.
• Widening EBITDA-to-cash-flow gap: A widening gap between reported EBITDA and cash flow from operations usually means working capital is being stretched or earnings quality is deteriorating. Falling cash conversion with flat EBITDA points to rising maintenance requirements.
• Pro forma synergies without execution evidence: Indefinite initiatives without execution plans do not qualify. Lenders should demand signed contracts, termination notices, or at minimum board-approved integration plans with named owners and quantified targets.
• Blended historical and forward-looking schedules: When a seller’s schedule blends historical normalization with forward-looking pro forma items, the two must be separated and evaluated independently. The price is set on history.

Underwriting Checklist: EBITDA Normalization Due Diligence

The following step-by-step framework should be executed on every private credit transaction before credit committee submission.

1. Obtain Source Financials — Verified, Not Prepared
   • Request 3 years of company-prepared financial statements, tax returns, and general ledger trial balances
   • Reconcile EBITDA to bank statements and tax returns independently — not off the CIM
   • Identify any restatements, audit qualifications, or changes in accounting policy
2. Build the Lender’s Own Adjustment Bridge
   • Do not begin with the seller’s schedule; build your own independently, then compare
   • Each add-back must have: a dollar amount, a category, supporting documentation, and a lender disposition (accept / haircut / reject)
   • Document the rationale for every deviation from the seller’s schedule
3. Apply the “Must It Remain?” Test to Every Add-Back
   • Ask: if this cost were removed, would revenue, customer service, or compliance be impaired?
   • If yes, the cost stays in EBITDA regardless of how it is labeled
   • Growth spend, customer acquisition costs, and compliance-related expenses fail this test regularly
4. Scrutinize Pro Forma Items With Execution Evidence Requirements
   • Accepted: executed vendor contracts at new rates, signed headcount reduction documentation with severance calculations, terminated leases with effective dates
   • Rejected: projected margin improvements, budget-based assumptions, synergy estimates without signed contracts
5. Calculate Leverage, DSCR, and Coverage on Lender-Adjusted EBITDA
   • Net Debt / EBITDA: flag anything above 5.5x for additional scrutiny; above 6.0x is high-risk territory
   • DSCR floor: 1.25x minimum on lender-adjusted EBITDA, with 1.40x or higher preferred for volatile industries
   • Interest coverage: 2.0x minimum; stress-test at +200bps rate increase
6. Covenant Definition and Add-Back Cap Alignment
   • Ensure covenant EBITDA definition aligns with lender-adjusted underwriting EBITDA — not seller-presented figures
   • Impose an explicit add-back cap (typically 15–25% of covenant EBITDA) on synergy and cost-savings items
   • Build a maintenance covenant at a level that provides early warning, not just default protection
7. Document Everything for Future Portfolio Monitoring
   • Preserve the full adjustment bridge in the credit file with dated source documentation
   • Set quarterly monitoring triggers tied to lender-adjusted EBITDA, not covenant EBITDA
   • Flag any borrower-submitted amendment that proposes expanded add-back definitions as a credit deterioration signal

Key Takeaways

• Seller EBITDA is a negotiating position, not an underwriting basis. Build the lender’s own adjustment bridge independently, verify every item with source documentation, and present both figures with a clear, auditable bridge in the credit memo.
• The “must it remain in the business?” test is the most powerful filter in EBITDA normalization. Any cost that sustains revenue, serves customers, or meets compliance requirements stays in EBITDA — regardless of how it is categorized on the seller’s schedule.
• Pro forma synergies without execution evidence are not EBITDA — they are projections. Require signed contracts, terminated leases, or documented headcount reductions before crediting any forward-looking cost savings.
• The gap between borrower-adjusted and lender-adjusted EBITDA directly determines whether a credit is sound or levered beyond sustainable capacity. A 28% median add-back rate documented by S&P Global means the leverage multiple on the average leveraged transaction is materially understated if add-backs are accepted uncritically.
• Covenant definitions must mirror underwriting EBITDA — not seller-presented figures. A maintenance covenant calibrated to inflated EBITDA provides no early warning. With Fitch’s private credit default rate hitting 6.0% in Q2 2026, tight, well-defined covenants are the primary tool for early detection and recovery preservation.