An AI interview assistant helps with investment banking interviews mainly as a drill partner. It asks the technicals (DCF, comps, how a change on one financial statement flows through the other two), the fit questions (why banking, why us, walk me through your résumé) and a deal walk-through, scores each spoken answer and shows a model answer. That repetition is what IB interviews reward, because the technical questions have known right answers and the interviewer is checking whether you can produce them quickly and calmly. Live help on a video first round is possible; at an in-person superday it is not appropriate, and the practice is where the value is.
What an investment banking interview actually asks
IB interviews for summer analyst, full-time analyst and associate roles are more standardized than most:
- First round (30 minutes, phone or video, often with an analyst or associate): a résumé walk-through, two or three fit questions, and five to ten technicals from "walk me through a DCF" to "if depreciation goes up by $10, what happens to the three statements?"
- Superday (final round): four to six back-to-back interviews of roughly 30 minutes each, from analysts up to managing directors. Historically in person at the bank's office; some groups now run it over video. Senior bankers lean toward fit, markets and judgment.
- Group-specific additions: restructuring groups ask about capital structure and distressed valuation; leveraged finance goes deeper on LBO mechanics; coverage groups ask about a company or deal in their sector.
Technicals cluster into four areas: accounting (the three statements and how they link, working capital, deferred taxes), valuation (DCF, trading comparables, precedent transactions, and when each gives a higher or lower value), enterprise value versus equity value (what to add and subtract and why), and LBO basics (what makes a good LBO candidate, how leverage amplifies returns). Market questions and brain teasers appear less often than they used to but still show up at some groups.
Question types, what the interviewer listens for, and how to anchor
| Question type | Example prompt | What the interviewer listens for | The anchor for your answer |
|---|---|---|---|
| Résumé walk | "Walk me through your résumé." | A story that ends at banking, under two minutes | Three moves, each with a reason, landing on why this seat |
| Fit | "Why investment banking? Why our bank?" | Specific, non-generic reasons and evidence you know what the job is | One experience that showed you the work, one true detail about the group |
| Accounting flow | "Depreciation rises by $10. Walk me through the statements." | Order, the tax rate, and the cash flow sign | Income statement first, then cash flow, then balance sheet; it must balance |
| Valuation | "Walk me through a DCF." | Each step in order and why, not a memorized list | Project free cash flow, discount at WACC, terminal value, bridge to equity |
| Comparison | "Which method usually gives the highest value?" | Judgment: control premiums, synergies, market conditions | Precedents usually highest because of the premium; say why it can differ |
| Deal walk-through | "Tell me about a recent deal you followed." | That you understand the rationale, not just the headline | Parties, size, multiple, strategic rationale, financing, your view |
| Judgment | "Should this company do a buyback or an acquisition?" | Framework plus a view you can defend | Lay out the trade-off, pick a side, name what would change your mind |
Even the technical rows are graded on order and reasoning. Bankers hear hundreds of DCF walk-throughs; what separates candidates is whether the steps come out in sequence, with a reason for each, under pressure.
Technicals: the accounting and valuation questions that decide first rounds
The three-statement question is the most reliable technical in IB interviews, and candidates lose it on two details: forgetting the tax effect and getting the sign on cash wrong. An outline we wrote for the $10 depreciation increase, assuming a 25% tax rate:
"On the income statement, operating income falls by $10 and net income falls by $7.50 after tax. On the cash flow statement, net income is down $7.50 but depreciation is a non-cash expense, so I add back $10, and cash from operations is up $2.50. On the balance sheet, cash is up $2.50 and PP&E is down $10, so assets are down $7.50; retained earnings fall by $7.50 on the other side, and it balances."
For a DCF, say the steps in the order a model is built: project unlevered free cash flow for five to ten years, calculate the discount rate (WACC, from the cost of equity via CAPM and the after-tax cost of debt, weighted by capital structure), estimate a terminal value by the perpetuity growth or exit multiple method, discount everything to present value to get enterprise value, then subtract net debt and other claims to reach equity value and divide by diluted shares. Be ready for the follow-up on every step: why unlevered, how you chose the growth rate, what happens to value if WACC rises.
Practice saying these out loud, not just reading them. Knowing the DCF and walking a managing director through it in ninety seconds are different skills.
Fit and the deal walk-through
"Why banking" fails when it is about prestige or learning. It works when it is about the work: a case competition, a finance club pitch, a prior internship where you built a model, a specific deal that made you want to understand how the financing came together. "Why our bank" needs one true detail, such as a deal the group closed, a sector focus, or a conversation you had with someone there, and a reason that detail matters to you.
For the deal walk-through, pick one transaction and know it properly: the acquirer and target, deal size and the implied multiple, the strategic rationale, how it was financed (cash, stock, debt), market reaction, and your own view on whether it was a good deal. Interviewers often follow with "what multiple did they pay?" and "how would you have financed it?" to see whether you actually read past the headline. Choose a deal in the group's sector if you can.
How the superday runs, and how to prepare for it
A superday compresses four to six interviews into a few hours, often with no break. Three things follow. You will be asked the same fit questions several times, and your answers should be consistent, since interviewers compare notes afterward. Technical difficulty is uneven: an analyst may grill you on deferred tax assets while a managing director asks for your view on a sector. And fatigue shows; the fifth interviewer should get the same energy as the first.
Preparation that works: repeat technicals until they are automatic, prepare three or four fit stories under two minutes each, and do at least one mock superday back to back, out loud. Our guide to the full-loop interview covers pacing across a day of back-to-back rounds, and the final round interview explainer describes what changes once senior people join.
How the free AI mock interview helps for IB
CoPilot Interview is a desktop AI interview assistant for Windows 10/11 and macOS 12+. For banking candidates, the mock interview is the mode to use. Paste the job posting and your résumé, and an AI interviewer builds questions from both, reads each question aloud, and you answer out loud. Each answer is scored out of 10 with what worked, what to improve and a model answer, and a report card ends the round.
Three ways to use it for IB. Run technicals out loud: the score tells you whether your DCF walk came out in order and whether you dropped the tax effect, and the model answer gives a clean version to compare against. Run your résumé walk-through until it is under two minutes and consistent. And simulate superday pressure with several short rounds back to back. The free plan is $0, no signup and no credit card, with 15 minutes a day in sessions of up to 15 minutes. For longer sessions in the final week, Standard is $14.99 a month with sessions up to 60 minutes and up to 100 minutes a day. Our finance interview help page collects more technical question lists, and the free AI mock interview page explains the scoring.
Live help, one honest limitation, and the rules
Some first rounds happen over video, and in that setting CoPilot Interview's Candidate Mode is a real-time interview assistant that runs beside Zoom, Microsoft Teams or Google Meet in a separate desktop window on your own screen and shows live captions plus a structured answer, key points first, about 2 seconds after the question ends; for an in-person superday it does not apply.
The honest limitation: the assistant cannot do the mental arithmetic for you in the room, and it cannot replace actually knowing the material. Banking interviewers follow every technical with a "why," and an answer read from a screen collapses on the second follow-up. The tool is for making the knowledge automatic beforehand. If you are choosing a practice tool, compare AI interview assistants on whether they grade spoken technicals rather than typed answers.
Follow the rules of the employer or assessment you're in — many people use it only to practice, which works on the free plan.
Drill your banking technicals out loud
Paste the posting and your résumé. The free AI mock interview asks valuation, accounting and fit questions, scores each spoken answer out of 10 and shows a model answer. 15 free minutes a day, no credit card.
Try a free AI mock interviewFAQ
What technical questions are asked in investment banking interviews?
The core set is accounting (how a change in depreciation or working capital flows through the three statements), valuation (walk me through a DCF, trading comps, precedent transactions, which gives the highest value), enterprise value versus equity value, and LBO basics such as what makes a good LBO candidate. Group-specific groups add restructuring or leveraged finance questions.
How do I answer 'walk me through a DCF' in an interview?
Say the steps in the order a model is built: project unlevered free cash flow, calculate WACC, estimate terminal value by perpetuity growth or exit multiple, discount to present value for enterprise value, then subtract net debt to get equity value and divide by diluted shares. Attach a short reason to each step and be ready for a follow-up on any of them.
What is a superday in investment banking?
A superday is the final round: four to six back-to-back interviews of about 30 minutes each, with interviewers from analyst to managing director, usually in one morning or afternoon. It is traditionally held in person at the bank's office, though some groups run it over video. Interviewers compare notes afterward, so consistency across interviews matters.
How should I prepare a deal to talk about in an IB interview?
Pick one recent transaction, ideally in the group's sector, and know the acquirer and target, deal size and implied multiple, strategic rationale, financing mix, market reaction and your own view. Expect follow-ups like what multiple was paid and how you would have financed it. One deal known well beats three known superficially.
Can an AI interview assistant help me practice IB technicals?
Yes. The free AI mock interview builds questions from the posting and your résumé, reads them aloud, scores each spoken answer out of 10 and shows a model answer, so you can check whether your DCF or three-statement walk came out in order. It is free for 15 minutes a day with no signup. It cannot replace knowing the material.
Is it appropriate to use a live AI interview assistant at a superday?
Not at an in-person superday, and most banks run them in person. On a video first round it can show captions and a structured outline, but follow the rules of the employer you are interviewing with. Most banking candidates use the tool only to drill technicals and fit answers before the interview.