Investment Banking interview preparation
Every question below is either traced to a named firm from a public candidate report, or tagged at desk level when we could not trace it. Answers are written the way you would actually say them out loud — answer first, then the mechanism, then the limitation.
100 questions, mapped to the firms that asked them
- Questions
- 100
- Traced to a firm
- 100
- Firms
- 46
- Updated
- September 2026
003Walk me through the three statements at the point of purchase and then after year one, given $100 of deferred revenue over two years.Centerview PartnersInvestment Banking · New York · 2026Piper SandlerInvestment Banking · Houston · 2026
Say this
At the moment of sale, cash goes up $100 and deferred revenue, a liability, goes up $100. Nothing touches the income statement yet. After year one, $50 is recognised as revenue, so the liability halves and earnings finally show up.
Then walk it
- Day one: cash up $100 on the asset side, deferred revenue up $100 on the liability side. Income statement untouched, because you have been paid but have not delivered.
- Year one: recognise $50 of revenue. At a 25% tax rate that is $37.50 of net income, assuming no costs for simplicity.
- Cash flow: net income up $37.50, then a working capital adjustment of minus $50 as deferred revenue unwinds. So cash from operations is minus $12.50 for the year, which is just the tax you paid.
- Balance sheet: cash down $12.50 from the year-one peak, deferred revenue down to $50, retained earnings up $37.50.
- The economic story is that a subscription business collects cash long before it books profit. That is why deferred revenue growth is a leading indicator.
Where candidates lose it
Recognising the revenue on day one. Cash received is not revenue earned. Also, candidates forget the working capital drag in year one and end up with a balance sheet that does not balance. Do the liability and the revenue in the same breath.
Expect next
- Would you rather own a business with growing or shrinking deferred revenue, and why?
- How does deferred revenue affect a DCF?
- What happens to deferred revenue in an acquisition?
Reported by candidates at Centerview Partners (Investment Banking, New York, 2026); Piper Sandler (Investment Banking, Houston, 2026). Source: Wall Street Oasis.
030Walk me through what happens to WACC when leverage rises, and tell me whether shareholder value actually changed.Centerview PartnersInvestment Banking · New York · 2026
Say this
WACC falls at first, because you are swapping expensive equity for cheaper tax-deductible debt, then rises again as distress risk takes over. So there is a U shape. Whether shareholder value changed depends on whether the tax shield outweighs the distress cost.
Then walk it
- Early leverage lowers WACC because debt is cheaper than equity and interest is deductible. The tax shield is a genuine transfer of value from the government to the capital providers.
- But as leverage rises, equity gets riskier, so cost of equity climbs. Lenders also reprice, so cost of debt climbs. Eventually both swamp the tax benefit and WACC turns back up.
- In a world with no taxes and no bankruptcy costs, Modigliani-Miller says the value of the firm is unchanged and you have only reshuffled claims. That is the reference case.
- In the real world the tax shield adds value and financial distress subtracts it, so there is an optimum somewhere in the middle. That is the whole theory of capital structure.
- So the honest answer to the second half is: shareholder value changed, but not because WACC fell. It changed because of the tax shield net of distress and agency costs. Falling WACC is a symptom, not the cause.
Where candidates lose it
Saying 'WACC falls so value goes up, therefore infinite leverage is optimal'. The interviewer asked the second half specifically to catch that. You must separate the mechanical WACC effect from the economic source of value.
Expect next
- So what is the optimal capital structure?
- Can debt ever be more expensive than equity?
- Why does Modigliani-Miller not hold in practice?
Reported by candidates at Centerview Partners (Investment Banking, New York, 2026). Source: Wall Street Oasis.
Firm tags come from public, anonymous candidate reports on Wall Street Oasis: strong signal, not sworn testimony. Firms are named as the places a question was reported, not as partners of Fin Maverick. Answers are written for this page to show how to think out loud; they are not scripts to recite.
