How to Prepare for an Investment Banking Interview
TL;DR: IB interviews weight technical accounting and valuation knowledge (know a DCF and the three-statement linkages cold) alongside "fit" — because bankers hire people they'd want in the room during long hours. With 2-4 weeks, prioritize accounting; with only days, drill the most common technical questions and the three-statement model.
By Pinal Dave · Last updated: 2026-08-05
The Claim
Investment banking interviews follow a well-documented structure across banks: a technical screen (accounting, valuation, DCF mechanics) and a fit/culture round, with "walk me through a DCF" cited as the single most common technical question across prep guides.
The Evidence
Multiple independent 2026 prep guides (Exponent's IB interview course, University of Miami's career center guide, FE Training's "45 Ultimate Investment Banking Interview Questions") converge on the same core structure and even the same flagship question — "walk me through a DCF" — while also flagging that screening tools like HireVue now filter candidates before they reach a live technical round.
Comparison: What Gets Tested and How to Prepare
| Area | What's tested | How to prepare |
|---|---|---|
| Accounting | Three-statement linkages (income statement, balance sheet, cash flow) | Practice explaining how a $10 increase in depreciation flows through all three statements |
| Valuation | DCF mechanics, comparable company analysis, precedent transactions | Be able to "walk me through a DCF" from memory, unprompted |
| Market awareness | Recent deals, industry trends, why this bank/group | Read recent deal news in your target group's sector before interviewing |
| Fit | Can they work with you under high-pressure, long-hour conditions | Prepare specific, concise stories — bankers screen out vague or overly rehearsed answers |
| Screening stage | Increasingly automated (HireVue, online tests) before live interviews | Practice on-camera, structured responses since automated screens are now common gatekeepers |
Step-by-Step: Preparing for an Investment Banking Interview
- If you have 2-4 weeks: prioritize accounting fundamentals first — it's the most common technical topic and the easiest area to look unprepared in.
- If you have only days: review the most common technical questions and make sure you can explain three-statement linkages cold.
- Master the DCF walkthrough — practice explaining it out loud, unprompted, since it's the single most frequently asked technical question.
- Prepare 3-4 concise fit stories covering teamwork, pressure, and why banking/why this group — bankers evaluate whether you can connect technical concepts to real deals clearly, without jargon overload.
- Research recent deals in your target group's coverage area so you can speak knowledgeably about market context.
- Practice for automated screens too — HireVue-style asynchronous video interviews are now a common first gate, so rehearse concise, structured on-camera answers.
FAQ
What's the single most important technical question to prepare? "Walk me through a DCF" — it's cited as the most common technical question across every major IB interview prep guide.
How much does "fit" really matter if my technicals are strong? Significantly — prep guides note that fit can trump technicals at the margin, since bankers are choosing who they want working alongside them during intense hours.
Do I need to memorize every valuation method? No — DCF, comparable company analysis, and precedent transactions cover the core; depth on DCF matters most since it's asked most often.
What's changed most about IB interviews recently? The addition of automated screening tools (HireVue, online tests) before candidates reach a live interview, making the funnel more competitive earlier in the process.
For live coaching through both technical and fit questions, InterviewBoost.ai's AI mock interviews and Live Interview Assist support high-stakes finance interview prep.
Sources
- Exponent: "Investment Banking Interview Prep (2026 Guide)"
- University of Miami Custom Career: "Investment Banking Interview Prep (2026 Guide)"
- FE Training: "45 Ultimate Investment Banking Interview Questions (2026 Edition)"