BCG internship: programs, deadlines and prep

BCG offers consulting internships to undergraduate, advanced degree and MBA students, called Summer Associate in the US and Visiting Associate in some offices. Interns work on real client projects, and BCG says internships last from a few weeks to a year depending on the role and location. Next in the US: MBAs apply by November 10, 2026, and undergrads can join BCG Launch, a free virtual series running November 9, 2026 to February 17, 2027. BCG hasn't posted its next US undergrad window, since summer 2027 has closed. To rehearse the case rounds out loud, Soreno, an AI voice interview practice app for consulting, investment banking and other finance candidates, runs BCG-style cases and fit questions with follow-ups and scored feedback.

Updated

  • Every degree level. Core consulting internships for undergrads, advanced degrees and MBAs.
  • Length depends on the office. Eight weeks in London, eleven in Switzerland, a few weeks to a year worldwide.
  • Next: US MBAs by November 10, 2026. US undergrads: BCG Launch runs November 9 to February 17. The next intern window isn't posted yet.
  • A test comes first in the US. The Consultant Career Assessment, then an online case for selected candidates.
  • Pay isn't published. None of BCG's internship pages we read states intern pay.

BCG's internship programs

From BCG's own careers pages, read on October 25, 2026. BCG's internships differ by office, so each card names its country.

Summer Associate (US)

BCG's US internship for undergraduate and non-MBA master's students.

For
Undergrads and non-MBA master's, any major
Offices
Your top two
Next window
Not posted yet (2027 closed)

MBA summer internship (US)

BCG's US MBA recruiting for summer interns.

For
MBA students
Apply by
November 10, 2026
Steps
Assessment and an online case of about 40 minutes

Summer internship (London)

A full member of a case team, like a new Associate.

For
Penultimate-year students
Length
Eight weeks, July and August
Apply
January 1 to 24, 2027

Visiting Associate (Switzerland)

The role of an Associate on a real client project.

For
Bachelor's from the fourth semester, or master's
Length
Eleven weeks
Apply
At least six months before you start
What interns doBCG's words

From BCG's global internship page and its office pages.

  1. Worldwide

    Real consulting work

    Mentored by experienced consultants, interns take on meaningful projects, work with clients and see what life at BCG is like.

    BCG: internship opportunities
  2. London

    Part of the case team

    Interns are fully integrated members of a case team, in a similar way to a new Associate, and are evaluated for a graduate offer at the end.

    BCG: United Kingdom
  3. Switzerland

    Training, then a client project

    A two-day training, then a client project in Switzerland, elsewhere in Europe or abroad, with a local buddy. You get detailed feedback and a certificate at the end.

    BCG: Switzerland internships

From BCG: internship opportunities, BCG: US Associate opportunities, BCG: US MBA opportunities, BCG: United Kingdom and BCG: Switzerland internships.

Who can apply

What BCG's pages say, office by office.

  • US: undergrads and non-MBA master's

    From all fields of study and backgrounds. MBA students apply through the MBA process instead. A cover letter is not required.

  • London: the penultimate year

    Of a bachelor's, master's or advanced degree, with a predicted 2:1 or equivalent and excellence outside academics. You are not eligible if you graduate before the internship.

  • Switzerland: from the fourth semester

    Bachelor's students from the fourth semester or master's students, enrolled during the internship, with some practical experience and strong English.

  • Everywhere: a resume and your offices

    BCG asks for your resume or CV and preferred locations, and says windows vary with your role and where your school is.

From BCG: US Associate, BCG: United Kingdom, BCG: Switzerland and BCG: internships.

BCG internship deadlines

From BCG's pages, rechecked on October 26, 2026. BCG sets windows by office and school, so check yours.

US undergrads

Next window
Not posted yet
BCG Launch
Nov 9, 2026 to Feb 17, 2027
Summer 2027
Closed

BCG's next step for US and Canadian undergrads is BCG Launch, a virtual series on consulting, the Associate application and life at BCG. Sessions run November 9, 2026 to February 17, 2027, and registration is open until March 29, 2027. It is not a job application. The 2027 summer internship has closed, and as of October 26 BCG had not posted the next window.

US MBAs

Deadline
November 10, 2026
Offices
Top two, final once you apply

Summer internship applications close November 10, 2026 at 11:59 p.m. local time. Keep your top two offices the same across applications.

London

Opens
January 1, 2027
Closes
January 24, 2027

Applications open January 1, 2027 and close January 24. BCG decides after the deadline, so applying later in the window does not hurt you.

Switzerland

Apply
Six months ahead or more
Length
Eleven weeks

Zurich and Geneva take internship applications all year, with no fixed deadlines. BCG recommends applying at least six months before the start date you want, through its online portal.

The intern interview process

BCG's global page says shortlisted applicants get a problem-solving interview. The steps before it differ by office.

Show the steps
  1. US

    Consultant Career Assessment

    Sent 30 to 90 minutes after you apply. It takes 30 to 35 minutes and you have 48 hours to finish it. MBAs with a US, Canadian or Mexican office take it too.

    The BCG interview process

  2. US

    Online case

    Selected undergrads get one of about 35 minutes about two weeks after the deadline. MBA applicants take one of about 40 minutes.

    BCG's online case (Casey)

  3. London

    Numerical test, then cases

    A short numerical assessment, a final CV review, then case discussions with senior members of the London team.

    BCG: United Kingdom

  4. Switzerland

    Cognitive test, then three cases

    A virtual cognitive test, then three in-person case interviews. In Germany and Austria, round two is virtual for internships.

    BCG: SwitzerlandBCG: Germany and Austria

10 questions to practice for a BCG internship

BCG's rounds are case interviews with questions about you. These are in our words, in BCG's style, with what a strong answer does.

Case questions5 questions

BCG says there isn't always a single right answer. Your approach counts.

  1. A regional grocery chain's profits are down 20% in two years. How would you find out why?

    What a strong answer does

    Revenue and costs split for this chain, then where you would start and why. Practice it, see a model answer

  2. A European e-bike maker is thinking about entering the US. How would you structure the decision?

    What a strong answer does

    Market, ability to win, then how to enter, ending on a hypothesis. Practice it, see a model answer

  3. How many gas stations are there in the US?

    What a strong answer does

    A clean top-down or bottom-up path, the math out loud and a sanity check at the end. Practice it, see a model answer

  4. Should a private equity firm buy a regional chain of dental clinics?

    What a strong answer does

    Market, the business, price and exit, with the risk that could sink the deal named early. Practice it, see a model answer

  5. The CEO asks for your recommendation. What do you say?

    What a strong answer does

    Answer first, then two or three reasons, a risk and a next step. Practice it, see a model answer

Questions about you5 questions

Asked in most rounds, often before the case.

  1. Walk me through your background.

    What a strong answer does

    Two minutes, in order, with the choices you made and why, ending on why BCG. Practice it, see a model answer

  2. Why consulting?

    What a strong answer does

    Two reasons backed by things you have done, and what you want to learn in the summer. Practice it, see a model answer

  3. Why BCG?

    What a strong answer does

    Something you learned from BCG people or its own pages, tied to the work you want. Practice it, see a model answer

  4. Tell me about a time you worked with someone who saw things differently.

    What a strong answer does

    Their view put fairly, what you did to understand it and how you decided together. Practice it, see a model answer

  5. Tell me about a time you had to learn something quickly.

    What a strong answer does

    How you learned it, who you asked and what you did with it under pressure. Practice it, see a model answer

Mistakes and how to prepare

Where internship candidates slip
  • Applying with no time for the test

    In the US the assessment arrives within 90 minutes and is due in 48 hours. Apply when the next two days are free.

  • Changing offices between applications

    BCG asks MBA applicants to keep the same top two offices everywhere, and their choice is final once they apply.

  • Waiting for the fall

    BCG's US undergrad window for summer 2027 had closed by October 2026. Join BCG Launch this winter and watch the US page from early in the year.

  • Reading cases instead of saying them

    The case is a conversation. Practice out loud with someone who pushes back.

A prep plan for the internship interviews

Our suggestion for the weeks between applying and your first round.

  1. Before you apply

    Clear 48 hours

    In the US the assessment arrives within 90 minutes of applying. Know what it covers before you click submit.

    BCG case interview guide

  2. Week 1

    The online case

    If you are invited, it is a timed case on screen with charts and math. Work through a sample under time.

    BCG Casey online case

  3. Weeks 2 to 4

    Cases out loud, every few days

    Full cases with someone asking one question at a time, a partner or an AI interviewer. Drill the math by hand in between.

    Free BCG-style caseFree fit practice

Get ready for the BCG case rounds, out loud

Soreno's AI interviewer runs BCG-style cases one question at a time, checks your math and asks fit questions with follow-ups, then scores the session. Start your free week.

Questions people ask

When is the BCG internship deadline?

It depends on the office. Next up: US MBA summer applications close November 10, 2026, and London takes applications from January 1 to 24, 2027. BCG had not posted its next US undergrad window by October 26, 2026 (summer 2027 has closed). Until then, US and Canadian undergrads can register for BCG Launch, which runs November 9, 2026 to February 17, 2027.

How much do BCG interns make?

BCG does not state intern pay on the internship pages we read. For the full-time role, our BCG salary page shows base pay by level from US H-1B filings.

How long is a BCG internship?

BCG says a few weeks to a year, depending on the role and location. London's summer internship is eight weeks in July and August. Switzerland's Visiting Associate program is eleven weeks.

Does BCG require a cover letter for internships?

Not in the US. BCG's US page says cover letters are not required for summer or full-time applications, and you can add one under other documents.

What is the BCG intern interview process?

In the US, the Consultant Career Assessment, an online case for selected candidates, then case interviews. In London, a numerical test and case interviews. In Switzerland, a cognitive test and three in-person cases.

Can a BCG internship lead to a full-time offer?

Yes. BCG calls internships a common pathway into full-time consulting. London evaluates interns for a graduate offer at the end, and Switzerland may offer strong interns a full-time role.

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