Private Equity Interview Prep with AI: Case Studies, Paper LBO, and Technical Questions (2026)

Private Equity Interview Preparation with AI

Private equity interviews are more demanding than investment banking interviews — they test not just technical skills but genuine investment judgment. Associates are expected to think like investors from day one: evaluate businesses, stress-test assumptions, construct investment theses, and defend recommendations. Claude with ClaudeFinanceLab lets you work through case studies conversationally, drill paper LBOs with immediate feedback, and develop the analytical instincts that separate strong candidates from technically competent ones.

Paper LBO Practice

Paper LBOs are the core PE technical screen. You must be able to complete one in under 5 minutes without a calculator:

• "Paper LBO: You are evaluating a business services company. LTM revenue $200M, LTM EBITDA $40M (20% margin). The seller is asking 9x EV/EBITDA. You plan to use 5x leverage (net debt / EBITDA) and hold for 5 years. Assume: (1) EBITDA grows at 8% per year; (2) FCF conversion is 70% of EBITDA (capex + working capital uses 30%); (3) 100% of FCF goes to debt repayment; (4) exit at 10x EV/EBITDA. Calculate: entry equity, exit equity, MOIC, and approximate IRR. Walk me through your logic step by step."
• "Paper LBO: Consumer brand. LTM EBITDA $25M. Entry at 11x. 55% leverage. Hold 4 years. EBITDA grows to $35M at exit. Exit at 10x. FCF: $12M/year, all to debt pay-down. Entry equity: 45% × (11 × $25M) = $123.75M. Entry debt: 55% × $275M = $151.25M. Debt after 4 years: $151.25M − 4 × $12M = $103.25M. Exit EV: $35M × 10x = $350M. Exit equity: $350M − $103.25M = $246.75M. MOIC: $246.75M / $123.75M = 1.99x. IRR: approximately 19% (2x in 4 years ≈ 19% IRR). Is this deal attractive? What would need to be true to hit 3x MOIC? Walk through the sensitivities."
• "Paper LBO shortcuts: what are the quick rules of thumb for IRR from MOIC and hold period? Build a 4×5 table in your head: rows are hold years (3, 4, 5, 6), columns are MOIC (2x, 2.5x, 3x, 3.5x). For each cell, give the approximate IRR. Then explain why IRR matters more than MOIC for fund performance, and why MOIC matters more for the LP's absolute return. Under what circumstances does a 5-year 2.5x MOIC beat a 3-year 2.0x MOIC on an IRR basis? When does it not?"

Investment Case Study Framework

• "I have a PE take-home case study: here is the CIM for a specialty distribution company — $480M revenue, $72M EBITDA (15% margin), 85% recurring revenue, fragmented customer base (top 10 = 22% of revenue), growing at 6% organically. Help me build the investment thesis. Walk me through: (1) what makes this a good PE business; (2) what are the 3 main value creation levers; (3) what are the 3 biggest risks; (4) what due diligence questions are most critical; (5) what price would you pay and why."
• "For this distribution company, build the 100-day plan. Assume entry. What are the first operational priorities: (1) Management assessment — which leaders are keepers; (2) Financial hygiene — what visibility into the P&L do we need immediately; (3) Revenue growth initiatives — identify the top 3 cross-sell or pricing opportunities; (4) Cost reduction — where are the quick wins without cutting into growth; (5) M&A pipeline — what add-on acquisitions would immediately add EBITDA at the same or lower entry multiple? Define success metrics for each initiative at day 30, 60, and 100."
• "How would you stress-test this distribution case? Build a downside scenario: assume revenue growth drops to −3% (volume loss due to supply chain disruption), EBITDA margins compress 200bps, FCF conversion falls to 55% (working capital strain). Recalculate the LBO returns at these assumptions. At what EBITDA level does the deal breach a 6x total leverage covenant? How many years of continued downside would trigger that? Does the PE firm have structural protections (covenant-lite, excess cash sweep block) that delay the breach?"

Operating Model Questions

• "PE interviewers often ask: 'How would you grow EBITDA from $40M to $60M in 4 years at this company?' Build a framework: (1) Organic revenue growth — what is the addressable market, what is the company's current penetration, what sales force or product improvements drive share gain? (2) Pricing — has the company raised prices in the last 3 years, what is the price elasticity, what is the competitive constraint on pricing? (3) Margin improvement — what is the overhead cost structure, where are the duplicative costs, what is the industry benchmark margin for similar companies? (4) Add-on acquisitions — at what multiple can you acquire bolt-ons, and what synergies justify a premium? Calculate the EBITDA contribution from each lever to reach the $60M target."
• "Walk me through how working capital affects LBO returns. A company has $200M revenue, 45-day AR, 30-day AP, 60-day inventory. Compute the cash conversion cycle and working capital as % of revenue. If the company grows revenue from $200M to $280M over 3 years and working capital intensity stays constant, how much cash does working capital consume? How does this change your FCF estimate and IRR? What operational improvement (e.g., reducing inventory to 45 days) would recover? Show the math."
• "How do you value a company in a PE context differently from a DCF? PE uses LBO math as a check on price — the question is: at what entry multiple does the deal still achieve a 20% IRR? Work backwards: if you require 20% IRR on a 5-year hold, MOIC must be ~2.5x. If exit equity = $250M (at a reasonable exit multiple), then max entry equity = $100M. If exit EV = $450M (9x exit EBITDA of $50M), and you have $180M of exit debt (based on assumed paydown), then max entry EV = $280M. Max entry multiple = $280M / $40M LTM EBITDA = 7.0x. This is your 'walk-away' price."

Portfolio Monitoring and Value Creation

• "A portfolio company (PE-owned, 3 years into a 5-year hold) is underperforming: EBITDA $28M vs. budget $38M (−26%). Revenue is on plan but margins compressed due to input cost inflation and a failed pricing initiative. Remaining debt: $180M. Originally projected exit equity: $220M. Recalculate exit equity at current trajectory. What are the options: (1) extend hold period; (2) inject equity and use for operational improvements; (3) sell now at a distressed valuation; (4) pursue a strategic sale despite market timing. What information would you need to make this decision?"
• "Build a monthly portfolio KPI dashboard for a PE-owned B2B software company. Include: (1) ARR and NRR; (2) new logo count and ACV; (3) gross margin and S&M efficiency (CAC payback); (4) EBITDA and FCF; (5) leverage ratio (net debt / LTM EBITDA); (6) employee count and revenue per employee. For each metric, identify: the target level, the current level, the trend vs. prior 3 months, and the threshold that would trigger a board conversation."

Fund Economics and LP Questions

• "Explain private equity fund economics to a first-year associate. A $1B PE fund charges 2% management fee and 20% carry above an 8% preferred return. The fund makes 10 investments over 5 years, then exits over the next 5 years. Assume the fund achieves a 2.3x gross MOIC. Walk through: (1) total management fees over 10 years; (2) total capital deployed; (3) gross return; (4) carried interest calculation (hurdle rate, catch-up, 80/20 split); (5) LP net MOIC and net IRR after fees and carry. What is the GP's total economics from this fund?"
• "What is the J-curve in private equity and how does it affect LP commitments? The J-curve: in the early years of a PE fund, the LP shows a paper loss because (1) management fees reduce NAV before investments are made; (2) early investments are marked at cost or below before value creation. As companies improve and exits occur (typically years 4-8), the IRR climbs. LPs with short-term reporting constraints (insurance company accounting, pension fund actuarial rates) struggle with the J-curve. What structures have PE firms developed to mitigate J-curve effects: secondary sales, subscription lines, NAV financing?"

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