Deloitte interview process and practice questions

Behavioral questions

1. Tell me about a time you persuaded someone who disagreed with you.

   A good answer covers

   • What they believed and why it was reasonable from their side
   • How you made your case: evidence, a small trial, or finding common ground
   • The outcome, and what you learnt about persuading people

2. Tell me about a time a teammate wasn't doing their share. What did you do?

   A good answer covers

   • What was slipping and how it affected the team's deadline
   • How you raised it with them privately and found out why
   • What changed, and how you kept the working relationship good

3. Describe a time you noticed something that didn't look right and raised it, even though it was awkward.

   A good answer covers

   • What you noticed and how you checked it before speaking up
   • Who you told, and how you put it without blaming anyone
   • What happened next and why raising it was the right call

4. Tell me about a time you had to learn a new tool or subject quickly to deliver on time.

   A good answer covers

   • Why you needed it and how little time you had
   • How you learnt it: what you read, built or asked
   • What you delivered, and how well it held up

Role and technical questions

1. A client's sales dropped 20% this quarter. How would you find out why?

   A good answer covers

   • Clarifying questions first: which products, regions and channels, and whether the whole market fell
   • A clear structure: price versus volume, then customers, competitors and changes inside the company
   • The most likely cause, the data you'd use to test it, and a first recommendation

2. A client wants to move its finance systems to the cloud. What would you ask in the first meeting?

   A good answer covers

   • The business reason: cost, speed, ageing systems or growth
   • What exists today: systems, data, integrations, users and any regulatory limits
   • Risks and timing: data migration, security, downtime, training, and how success will be measured

3. Walk me through how you'd estimate the number of cups of coffee sold in Bengaluru on a weekday.

   A good answer covers

   • A clear starting point, such as population or number of cafés and offices
   • Splitting by who drinks coffee and how often, with round numbers you say out loud
   • A final figure, a quick sense check, and which assumption matters most

4. Explain what an external auditor does and why investors rely on audited financial statements.

   A good answer covers

   • An independent check that the statements give a true and fair view, under the accounting rules that apply
   • How auditors gather evidence: testing samples, confirming balances, understanding controls
   • Why independence and professional scepticism matter to investors and lenders

5. Explain the difference between a relational database and a NoSQL database, and when you'd choose each for a client project.

   A good answer covers

   • Relational: tables, fixed schema, joins and transactions; NoSQL: flexible documents or key-value data at scale
   • A client example for each, such as finance ledgers versus product catalogues or event logs
   • The trade-offs you'd explain to the client: consistency, scaling, skills and cost

6. You're implementing a new system and the client's team keeps resisting it. How would you get them on board?

   A good answer covers

   • Finding out why: fear of extra work, lost control, or real gaps in the system
   • Involving key users early, showing quick wins and training them in their own processes
   • Keeping the client's sponsor informed and agreeing what success looks like

Why Deloitte? Fit and HR questions

1. Tell me about yourself.

   A good answer covers

   • Your studies or current role in two or three lines, starting with what's most relevant to this job
   • One or two achievements that show analytical, technical or client-facing skills
   • Why you're applying to this business at Deloitte, as a bridge to the rest of the interview

2. Why consulting, and why Deloitte?

   A good answer covers

   • What draws you to client work, shown by something you've done (a project, an internship, a competition)
   • Something specific about Deloitte: a business, a service line or a kind of project you want to work on
   • How your skills fit the role you've applied for

3. Which of Deloitte's businesses do you want to work in, for example audit, tax, consulting or advisory, and why?

   A good answer covers

   • A clear choice, linked to your studies, skills or experience
   • What you know about the work people at your level do there
   • What you hope to learn in your first two years

4. What questions do you have for us?

   A good answer covers

   • One or two specific questions about the team's clients, projects or training
   • A question that shows you've listened during the interview
   • Nothing you could have found on the careers site in a minute

Tips

• Structure answers out loud: 'I'd look at three things…'.
• For case questions, ask clarifying questions before you answer.
• Know which business and service line you've applied to; audit, tax, technology consulting and risk interviews ask quite different technical questions.
• Bring one project you can explain end to end: the problem, your part, the tools you used and what the client or user got.
• In a partner round, expect broader questions on business news and why you want client work; read up on one or two industries you'd like to serve.
• Prepare a short story for each Shared Value, especially integrity and teamwork; behavioural questions often map to them.