Case Study Interview Finance: UK Guide to Assessment Centre Case Tasks and Presentations

6 min readDaniel Ruiz

Testing

Case study interviews test judgement under time pressure, not full models. This UK guide covers solo case formats, recommendation structure, and presentation tactics at assessment centres.

Candidates often confuse case studies with technical exams. They either over-model and run out of time, or ramble without a recommendation. Banks use solo cases at assessment centres because analyst work includes synthesising incomplete information and advising under deadlines.

This guide focuses on individual case study interviews: formats, analysis structure, presentation, Q&A defence, and practice plans. For group tasks, see our group exercise assessment centre guide. For inbox simulations, see the e-tray exercise finance guide.

Where case studies appear in UK recruiting

Assessment centre
Stage
Format
On-the-spot solo case + presentation
Typical timing
45 to 75 minutes total
Final-round superday
Stage
Format
Shorter live case discussion
Typical timing
15 to 30 minutes
Take-home (some firms)
Stage
Format
Written memo or slides
Typical timing
24 to 72 hours
StageFormatTypical timing
Assessment centreOn-the-spot solo case + presentation45 to 75 minutes total
Final-round superdayShorter live case discussion15 to 30 minutes
Take-home (some firms)Written memo or slides24 to 72 hours

Case prompts often mirror real advisory questions:

  • Should Company X acquire Target A, B, or C?
  • Debt vs equity to fund expansion?
  • Should the bank pitch for this mandate?
  • Invest or pass on this company?

The decision type matters less than how you structure uncertainty.

What assessors score

Problem framing
Dimension
Strong signal
States decision and criteria upfront
Weak signal
Jumps to numbers without objective
Analysis
Dimension
Strong signal
Prioritises key drivers
Weak signal
Reads every page equally
Judgement
Dimension
Strong signal
Names trade-offs explicitly
Weak signal
False certainty
Communication
Dimension
Strong signal
Clear recommendation first
Weak signal
Circular narrative
Composure
Dimension
Strong signal
Handles Q&A revisions calmly
Weak signal
Defensive when challenged
DimensionStrong signalWeak signal
Problem framingStates decision and criteria upfrontJumps to numbers without objective
AnalysisPrioritises key driversReads every page equally
JudgementNames trade-offs explicitlyFalse certainty
CommunicationClear recommendation firstCircular narrative
ComposureHandles Q&A revisions calmlyDefensive when challenged

Technical depth is usually moderate. Communication and judgement often dominate.

The six-step case framework

Use this sequence in solo cases:

1. Clarify the decision (two minutes)

Write at the top of your notes:

  • What exactly are we deciding?
  • For whom (client, bank, investor)?
  • What is the time horizon?

If instructions are ambiguous, state your interpretation aloud before analysing.

2. Set criteria (three to five minutes)

Pick three to four factors, for example:

  • Strategic fit
  • Valuation / affordability
  • Execution risk
  • Financing flexibility

Criteria prevent random analysis.

3. Extract facts from the pack (fifteen to twenty-five minutes)

Scan for:

  • Revenue and margin trends
  • Leverage and liquidity
  • Market context
  • Synergy or integration risks
  • Management quality signals

Do not recopy every table. Flag three insights and one risk per option.

4. Compare options qualitatively (ten to fifteen minutes)

A simple comparison grid in notes:

A
Option
Upside
...
Risk
...
Fit with criteria
...
B
Option
Upside
...
Risk
...
Fit with criteria
...
OptionUpsideRiskFit with criteria
A.........
B.........

Directional valuation is enough: "A is cheaper on EBITDA multiple but carries integration risk."

5. Recommend with caveats (five minutes)

Structure:

  • Recommendation: one clear choice
  • Two reasons: criteria-linked
  • One risk: what could change your view
  • Next step: what diligence you would run

6. Present and defend (five to fifteen minutes)

Open with the recommendation, not background.

Presentation structure (three to five minutes)

Minute-by-minute outline:

0-0:30
Minute
Content
Decision + recommendation
0:30-2:00
Minute
Content
Key evidence (two points)
2:00-3:00
Minute
Content
Main risk and mitigation
3:00-4:00
Minute
Content
Optional: alternative rejected and why
4:00+
Minute
Content
Q&A
MinuteContent
0-0:30Decision + recommendation
0:30-2:00Key evidence (two points)
2:00-3:00Main risk and mitigation
3:00-4:00Optional: alternative rejected and why
4:00+Q&A

Use plain language. Assessors are not scoring slide design. They are scoring clarity.

Q&A: how to handle pushback

Common challenges:

"Why not Option B?"
Interviewer push
Strong response
Acknowledge B's strength; explain criteria weighting
"Your valuation seems high"
Interviewer push
Strong response
Separate directional view from missing diligence
"What if synergies fail?"
Interviewer push
Strong response
Downside case and impact on recommendation
"You had ten minutes left. What else?"
Interviewer push
Strong response
Name one diligence workstream, not new analysis rabbit hole
Interviewer pushStrong response
"Why not Option B?"Acknowledge B's strength; explain criteria weighting
"Your valuation seems high"Separate directional view from missing diligence
"What if synergies fail?"Downside case and impact on recommendation
"You had ten minutes left. What else?"Name one diligence workstream, not new analysis rabbit hole

Revising your view calmly can score well. Arguing without evidence does not.

Case study vs technical interview

Open brief, messy data
Case study
Technical interview
Defined questions
Judgement and structure
Case study
Technical interview
Accounting and valuation fluency
Presentation matters
Case study
Technical interview
Verbal precision matters
"What would you advise?"
Case study
Technical interview
"Walk me through depreciation"
Case studyTechnical interview
Open brief, messy dataDefined questions
Judgement and structureAccounting and valuation fluency
Presentation mattersVerbal precision matters
"What would you advise?""Walk me through depreciation"

Refresh technical basics with our investment banking technical interview questions guide, but do not turn cases into formula recitation.

Commercial context strengthens cases. Apply second-order thinking from our commercial awareness finance interview guide when sector or macro appears in the brief.

Take-home case studies

Some firms assign cases in advance. Standards rise:

Depth
Element
Expectation
Cleaner logic, more explicit assumptions
Output
Element
Expectation
Short memo or slide deck
Numbers
Element
Expectation
More defensible if you cite them
Time management
Element
Expectation
Do not over-build; answer the question
ElementExpectation
DepthCleaner logic, more explicit assumptions
OutputShort memo or slide deck
NumbersMore defensible if you cite them
Time managementDo not over-build; answer the question

Still lead with recommendation. A beautiful model with no answer fails.

One-week case prep plan

1
Day
Task
Read one public M&A deal; write invest/pass memo (one page)
2
Day
Task
Timed solo case: acquisition choice (45 min)
3
Day
Task
Record three-minute presentation; review clarity
4
Day
Task
Timed solo case: debt vs equity financing
5
Day
Task
Mock Q&A with partner pushing on risks
6
Day
Task
Full mock AC block: case + one group exercise
7
Day
Task
Light review; sleep before real AC
DayTask
1Read one public M&A deal; write invest/pass memo (one page)
2Timed solo case: acquisition choice (45 min)
3Record three-minute presentation; review clarity
4Timed solo case: debt vs equity financing
5Mock Q&A with partner pushing on risks
6Full mock AC block: case + one group exercise
7Light review; sleep before real AC

Build cases from live UK/Europe deals in the news. Real context beats generic textbook companies.

Common case study mistakes

No recommendation
Mistake
Why it fails
Looks indecisive
Fix
State a view; qualify risks
Full DCF under time pressure
Mistake
Why it fails
Runs out of clock
Fix
Directional comparison
Ignoring the question
Mistake
Why it fails
Answers wrong decision
Fix
Write decision at top of page
Presenting chronologically
Mistake
Why it fails
Buries the lead
Fix
Recommendation first
Reading slides
Mistake
Why it fails
Low executive presence
Fix
Bullet notes + eye contact
Ignoring Q&A
Mistake
Why it fails
Misses half the score
Fix
Practise defence separately
MistakeWhy it failsFix
No recommendationLooks indecisiveState a view; qualify risks
Full DCF under time pressureRuns out of clockDirectional comparison
Ignoring the questionAnswers wrong decisionWrite decision at top of page
Presenting chronologicallyBuries the leadRecommendation first
Reading slidesLow executive presenceBullet notes + eye contact
Ignoring Q&AMisses half the scorePractise defence separately

Case briefs often reflect sectors you flagged on your CV or division you applied to. When you track applications by company and division, you can rehearse sector-relevant cases instead of generic templates.

Practise one forty-five-minute solo case this week and record a three-minute recommendation-only presentation before your assessment centre.

What to do after reading this

Prepping case study interviews at finance assessment centres? Finbound is a free application tracker and study platform for finance recruiting. You add the banks and divisions on your list, and an advanced priority algorithm ranks the highest-impact assessment centre prep from those applications so case work for one firm is not ordered the same as group exercise drills for another.

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Read the full assessment centre investment banking guide and pair with group exercise and e-tray prep if your invite includes them.

Frequently Asked Questions