AI for Financial Due Diligence: Claude Tools for M&A and QoE Analysis (2026)

Financial Due Diligence and AI

Financial due diligence (FDD) in M&A transactions verifies the financial representations in a seller's information memorandum and identifies risks not visible in audited financials. The goal is to give the buyer an independent view of the business's true earnings power, working capital requirements, debt obligations, and the credibility of management's projections — all of which directly affect purchase price and deal structure.

FDD typically covers six workstreams: quality of earnings (QoE), working capital normalization, revenue quality, EBITDA bridge analysis, debt-like items, and management projection assessment. On a typical buy-side engagement, these workstreams are run concurrently by an accounting advisory team (Big 4 or independent FDD boutique) over 3–6 weeks, producing an FDD report that becomes the basis for purchase price adjustment mechanisms and rep-and-warranty insurance coverage. Claude with ClaudeFinanceLab accelerates the analytical work across all six workstreams — running EBITDA bridges in minutes rather than hours, flagging revenue recognition risks, and stress-testing management projections.

The FDD Workstream Structure

The six workstreams map to the key transaction economics as follows:

• QoE / EBITDA normalization → determines the EBITDA multiple denominator and thus the valuation anchor
• Revenue quality → assesses sustainability and recurrence of the earnings being capitalized
• Working capital normalization → determines the NWC peg, which affects the equity value received at closing
• Debt-like items → adjusts enterprise value to equity value in the closing waterfall
• Management projections → drives the buyer's underwritten IRR and informs leverage sizing
• Off-balance sheet and contingent liabilities → identifies risks that affect post-close cash flows or require escrow/indemnification

Quality of Earnings (QoE)

QoE analysis is the heart of FDD — determining the true, sustainable EBITDA that the buyer is actually acquiring at the stated multiple. Sellers present an "adjusted EBITDA" with addbacks that can range from genuinely defensible (one-time legal costs, owner comp above market) to aggressively optimistic (recurring items dressed as one-time, pro forma synergies, full credit for partial-year acquisitions). The buyer's FDD team accepts, rejects, or modifies each addback and may identify additional deductions the seller hasn't disclosed. The gap between seller-adjusted and buyer-adjusted EBITDA is typically 10–25% on lower-middle-market deals and directly reduces the equity check at the same multiple.

• "Perform a quality of earnings adjustment on this EBITDA bridge: reported EBITDA $42.5M. Addbacks claimed by seller: (1) CEO salary above market $1.2M (owner comp adjustment); (2) one-time restructuring charges $2.8M; (3) COVID-related government grants $1.5M; (4) gain on sale of equipment $0.6M; (5) management consulting fees $1.8M (to related party); (6) pro forma for acquired entity $3.2M. Total claimed addbacks $11.1M → adjusted EBITDA $53.6M. Assess each addback: which are defensible and which would a buyer challenge?"
• "Analyze EBITDA trend quality: LTM EBITDA $42.5M. But: year 3 was $38M, year 2 was $44M (anomaly — won large one-time project), year 1 was $36M. Trailing 12 months benefited from a one-time customer migration project ($6.4M revenue, 80% margin). Normalized EBITDA excluding the one-time project? What does the underlying growth trend look like?"
• "Build the EBITDA bridge from reported to 'buyer-adjusted': start with reported EBITDA $42.5M, add/subtract: seller addbacks accepted ($5.8M), seller addbacks rejected ($5.3M), buyer-identified deductions — above-market rent to related landlord ($1.2M below market adjustment reversal), understated accruals ($0.8M), public company cost burden ($2.1M if taken private → removal). Buyer-adjusted EBITDA?"

Revenue Quality Analysis

• "Assess revenue quality for this B2B SaaS company: ARR $28.4M, 420 customers. Customer concentration: top 5 customers = 38% of ARR. Contract terms: 72% on annual contracts (recurring), 18% on multi-year (high quality), 10% month-to-month (churn risk). Net revenue retention 108%. Churn analysis: gross churn 12% by customer count, 8% by ARR (larger customers more sticky). Assess revenue quality on a 1-5 scale."
• "Flag revenue recognition risk: the company recognizes 100% of a multi-year contract upfront if the customer signs a non-cancellable contract. Under ASC 606, is this appropriate? Review: (1) performance obligations — is the entire contract a single PO or multiple? (2) timing — over time or point in time? (3) If recognition is incorrect, what is the deferred revenue adjustment?"
• "Analyze revenue bridge: LTM revenue $142M vs prior year $128M (+10.9% growth). Decompose: organic growth from existing customers $8.4M (+6.6%), new customer revenue $12.2M (+9.5%), churn/downsell ($6.6M, -5.2%). Is the growth quality acceptable for a 12x EBITDA acquisition multiple?"

Working Capital Normalization

• "Compute normalized working capital: trailing 12-month average of: AR $18.4M, inventory $12.2M, other current assets $2.8M, AP ($8.4M), accrued expenses ($6.2M), deferred revenue ($4.8M). Normalized NWC = $14.0M. Seller's proposed closing NWC peg: $16.4M. Is the peg fair? Which line items are inflated?"
• "Analyze working capital seasonality: the business has peak AR in Q4 (holiday season), with Q4 AR typically 30% above average. The deal is closing in October. Seller is arguing for Q4-elevated NWC peg. What is the seasonality-adjusted NWC peg and how much is the Q4 timing worth to the seller?"
• "Identify working capital manipulation risks: (1) AR acceleration — any large payments received just before year-end that normally come in January? (2) Inventory write-offs deferred — are reserves adequate? (3) AP stretching — has vendor payment timing changed in the last 90 days? (4) Accrual holidays — are all bonus and vacation accruals properly recorded?"

Debt-Like Items and Net Debt

• "Identify debt-like items in this acquisition: nominal balance sheet debt $42M (term loan). Additional debt-like items to deduct from equity value: unfunded pension liability $8.4M, deferred revenue (liability for future performance) $6.2M, earn-out obligations $4.5M, operating lease obligations (IFRS 16 / ASC 842) $12.8M, customer deposits (refundable) $1.4M. What is total net debt for enterprise-to-equity value bridge?"
• "Assess off-balance sheet liabilities: company has 12 operating leases not yet on balance sheet (pre-ASC 842 adoption). Minimum future lease payments: Year 1 $2.4M, Year 2 $2.4M, Year 3 $2.4M, Year 4 $1.8M, Year 5 $1.2M, thereafter $2.4M. Discount at 5.5% IBR. What is the operating lease liability to include in net debt?"

Management Projection Assessment

• "Assess management's 5-year projection: revenue CAGR 22% (from $142M to $385M), EBITDA margin expansion from 29.8% to 38.5%. Historical CAGR: 11% revenue, margin has been flat. Key assumptions driving plan: (1) new product launch in Year 2 ($45M revenue); (2) international expansion ($68M revenue by Year 5); (3) automation investment reducing COGS by 600bps. How achievable is this plan? What is the implied multiple on a buyer-adjusted base case?"
• "Build buyer's own base case using conservative assumptions: revenue CAGR 14% (haircut of 8 points from 22%), EBITDA margin expansion 200bps over 5 years (vs 870bps claimed). Compute: Year 5 EBITDA on buyer's case vs management case. At 12x exit multiple, what is the IRR on buyer's base case vs management case?"

Carve-Out and Standalone Cost Analysis

For corporate divestitures (carve-outs), FDD adds a critical workstream not present in full-company acquisitions: separating the target's true standalone economics from the parent's shared services. A carve-out business may have benefited from parent-level IT infrastructure, HR, legal, finance, insurance, procurement, and treasury services without bearing their full cost. The buyer must estimate the cost to replicate these services as a standalone company.

• "Estimate standalone costs for this corporate carve-out: the target has been allocated $4.2M/year in shared services from the parent (IT $1.4M, HR/payroll $0.8M, finance/accounting $0.9M, legal $0.6M, insurance $0.5M). Market rate for standalone equivalents: IT (managed service) $2.1M, HR outsourcing $1.1M, finance/controller function $1.4M (need CFO + controller + 2 accountants), legal (outside counsel retainer) $0.8M, D&O/GL insurance $0.7M. Standalone cost uplift: $6.1M vs. $4.2M allocated = $1.9M incremental cost burden. Buyer-adjusted EBITDA impact: $1.9M reduction. At 12x multiple, this represents $22.8M of value difference."
• "Assess transition service agreements (TSA): seller is offering to provide IT, payroll, and ERP support for 12 months post-close at cost plus 10%. TSA costs: Year 1 $4.6M. Buyer must build standalone capability during TSA period. What resources and timeline are needed to exit TSA services, and what is the stranded cost risk if the transition runs over?"

FDD Red Flags Checklist

The most common FDD red flags that result in purchase price reductions or deal breaks:

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