There is no column on a case interview scoring sheet for your suit. Every form I have filled in scores some version of structure, numbers, judgment, and communication, and nothing else. So your outfit cannot earn you a point; all it can do is take a few seconds of the interviewer's attention away from your answer, or make them wonder about your judgment. That changes the target: not "impressive", but one notch above what the person scoring you will be wearing, and nothing they could describe afterward.
Candidates now get this wrong in both directions because offices moved and interview norms mostly did not. PwC went "dress for your day" in 2016, Goldman Sachs went firmwide casual in 2019, and McKinsey told candidates in 2020 that "most of us have switched to business casual". The interview stayed a notch more formal than the office, and the gap is where the guessing happens.
Below: what McKinsey, Bain, BCG, and Deloitte actually publish about clothes (less than you think), the notch for each format, a two-minute distraction score, and what it should cost.
The scoring sheet has no column for clothes
Sit on my side of the table for a minute. The interviewer has forty-five minutes, a case they have run twenty times, and a form. Afterward, in the debrief, we compare forms. In something like three hundred debriefs I can recall clothing being raised perhaps five times, always filed under judgment: the candidate had misread the room. Never once as a plus. That is my recollection, not a statistic, but I have not met a colleague whose experience differs.
There is real evidence that the first read happens before you speak. In nine studies published in Nature Human Behaviour, the same face was judged more competent when paired with clothes independent raters called "richer" than with clothes rated "poorer", and the effect survived a 129-millisecond exposure and explicit instructions to ignore the clothing (Oh, Shafir, and Todorov, 2020). Two caveats: the raters were strangers looking at headshots for a fraction of a second, and a snap impression is not a forty-five-minute conversation. A case gives the interviewer far stronger evidence, and it overwrites the snapshot.
So the lesson is narrower than "dress rich". You cannot ask the interviewer to ignore your clothes, because they cannot. The snapshot is taken in the walk from the door to the chair, and all you control is whether it is neutral or negative. Your outfit has a floor and no ceiling. Design for the floor.
The office got casual. The interview mostly did not
The drift is documented. PwC US moved to "dress for your day" in 2016, and its people leader, Anne Donovan, drew the line herself: "If you're in front of a CEO, you wear a suit" (The Fiscal Times, August 2016). In March 2019 Goldman Sachs told its roughly 36,000 employees it was moving to a "firm wide flexible dress code" (Reuters, 5 March 2019), with a caveat in the same memo: "Casual dress is not appropriate every day and for every interaction" (BBC, 6 March 2019).
Every firm that loosened its office code kept the same exception: the moment someone senior is judging you. An interview is that moment by definition. The consultant interviewing you may be in chinos on a Tuesday; the standard applied to you is the client-meeting standard, because that is the job they are imagining you doing.
Hence the two failure modes are mirror images. The candidate who dresses like the office (open collar, no jacket, because "consultants don't wear suits any more") is right about the office and wrong about the room. The candidate in a three-piece with a pocket square has aimed two notches up and looks like they are in costume. Both get remembered. Neither gets a point.
What the firms actually publish
Firms publish less about clothes than prep sites pretend. Here is everything I could find on the firms' own pages, with dates, because this moves.
| Firm | What it says about what candidates wear | Where, and when |
|---|---|---|
| McKinsey | Answering "What should I wear?": "We do not expect you to wear a suit or dress formally. We are all in the same situation, and most of us have switched to business casual." The current interviewing page says nothing about clothes; for video it asks for camera on, virtual backgrounds and blurring off | Careers blog, Fall 2020, mid-pandemic, about virtual interviews; Interviewing at McKinsey, as of September 2026 |
| Bain | In person: "Dress professionally: Wear clean, business professional attire." Virtual: a quiet, well-lit space with a neutral or blurred background | Case interview preparation, as of September 2026 |
| BCG | Nothing about clothes on the case-interview page; it covers listening, structure, and communication | Case interview preparation, as of September 2026 |
| Deloitte | "When in doubt, overdress. Recent trends have dictated business-casual attire, but it's still appropriate to wear a business suit." On video: dress fully, not just from the waist up; avoid stark white shirts, bright colors, and intricate patterns | Interviewing tips and Video interview insights, Deloitte careers pages, as of September 2026 |
Three things stand out. The only firm that asks for a suit-level standard, Bain, asks for it in person and says nothing about clothes for video. The only firm that waived the suit, McKinsey, did so in 2020 for virtual interviews and has not repeated it; I would not treat a six-year-old pandemic blog post as policy. And nobody publishes a color, shoe, or tie rule. "McKinsey prefers navy", "Bain hates brown shoes", "BCG wants a tie in Boston but not San Francisco": that is folklore, and it lives on Reddit and in WhatsApp groups. If your recruiter tells you something specific in writing, the recruiter outranks this page.
One notch above the room
The rule I give candidates: dress one notch above the person who will score you, never two. University career offices say a version of the same thing, "a little more conservatively and formally than employees typically dress" (Texas A&M Career Center). The only work is guessing what the interviewer will have on, and the format gets you most of the way.
| Setting | What the interviewer will probably wear | Your notch |
|---|---|---|
| In-person first round, strategy firm | Business casual, or a suit with no tie, depending on the office | Suit, plain shirt. Add the tie if the invite is silent |
| In-person final or partner round | Often a suit, sometimes without a tie | Suit and tie, or the equivalent tailored suit or dress with a jacket |
| Virtual case or fit interview | Business casual, by the firms' own account | Jacket and collared shirt in frame; real trousers out of frame |
| In-person round at a Big Four or Accenture strategy arm | "Dress for your day" norms | Suit; drop the tie only if the invite says business casual |
| Assessment center or office superday | Mixed, because several people rotate through | Suit. Jacket off only when everyone in the room has taken theirs off |
| Recruiting event, info session, coffee chat | Business casual | Blazer, no tie, collared shirt or plain knit |
The notch is the whole outfit reading slightly more formal than theirs, not any one item. A suit without a tie is one notch above chinos and a blazer; a suit and tie is one notch above that; a three-piece is two notches above almost anything. And when the invite states a code, the invite wins. A full suit at an interview the email called business casual is a small misread, but it is a misread, and it says you did not read the email.
The distraction score
Here is the two-minute check I would run on a candidate if they asked. Put the outfit on, stand in front of a mirror, and score each row. It is a heuristic, not science, but it maps to the things I have actually heard colleagues mention in debriefs.
| Element | 0 points | 1 point | 2 points |
|---|---|---|---|
| Fit | Sleeves end at the wrist bone, trousers break once, jacket buttons without pulling | One of those is slightly off | It pulls, pools, or you keep adjusting it |
| Color and pattern | Navy, charcoal, or mid-gray; solid or faint | Black suit, bold stripe, or a bright shirt | Anything you would call a statement |
| Shoes | Clean, closed, and you can walk 400 meters in them | New and stiff, or visibly scuffed | Sneakers, open toes, or a limp by the elevator |
| Accessories | A watch, one ring, small earrings | Cufflinks, a pocket square, a large necklace | Anything that makes noise or catches light when you gesture |
| Fragrance | None | Light | Arrives before you do |
| Logos and pins | None visible | One brand mark | A competitor firm's tote, or a political or cause pin |
| Bag | Slim folio or plain tote | Backpack, kept on the floor | Backpack on the table |
Total 0 or 1: go. Total 2: fix the item that scored it. Total 3 or more: you are paying an attention tax every time the interviewer looks up from their notes; change something tonight, not tomorrow morning.
"Expensive" appears nowhere in the table. A $180 secondhand suit that scores zero on fit beats a $1,500 suit that pulls at the button. And most of the 2-point column is fine at a wedding. The interview is not a wedding.
Ned's rule. If I can describe your outfit after the interview, it was the wrong outfit. Dress one notch above the person scoring you, then remove anything they could name in the debrief.
What it costs, against what it pays
Candidates put off buying the outfit because it feels expensive relative to a student budget. Run the numbers relative to the job instead. Ned's estimates for a complete outfit, US prices, September 2026, buying new unless noted:
| Item | Lean | Middle | Comfortable |
|---|---|---|---|
| Suit, navy or charcoal (lean tier: secondhand or entry-level) | $180 | $450 | $900 |
| Tailoring: sleeves, hem, waist | $60 | $80 | $120 |
| Two shirts or blouses | $70 | $120 | $200 |
| Closed leather shoes | $90 | $180 | $350 |
| Tie, belt, socks or hosiery | $40 | $70 | $130 |
| Total | $440 | $900 | $1,700 |
Now the other side. For the Harvard Business School Class of 2025, the median consulting base salary was $190,000, with a $30,000 median signing bonus and a $40,000 median variable bonus, each received by roughly nine in ten of those who took consulting jobs (HBS employment data, consulting). Base salary alone, spread over 250 working days, is $760 a day. The lean outfit costs about 0.6 of one day's pay at the job you are interviewing for; the comfortable one, a little over two days. Undergraduate offers are lower, but halve the salary and the arithmetic says the same thing.
Cost per wear is the more honest number. A typical season is four firms and perhaps six interview days, plus two events where a blazer matters: eight wears. The middle outfit is about $112 a wear across recruiting; if it then does thirty client days in your first year, which it will, that drops to $24. Spend the money on tailoring before fabric. Every partner I know can spot an unaltered sleeve from across the room; none of us can tell a $450 wool from a $900 one at conversational distance.
Lead time matters more than price. Buy two weeks out, because tailoring takes a week or more; break the shoes in around the house in the ten days between; run the camera test and the distraction score three days out; hang everything up the night before, then stop thinking about it.
On camera, the shirt is the test
Virtual interviews change what the interviewer can see, and therefore what can distract. Three published facts set the constraints. McKinsey asks for camera on with virtual backgrounds and blurring disabled, so your actual room is the backdrop (Interviewing at McKinsey). Bain is fine with a neutral or blurred background (Bain, case interview preparation). And Deloitte's own video advice is to avoid stark white shirts, bright colors, and intricate patterns (Deloitte, video interview insights), because webcams over-expose white and turn fine patterns into shimmering moiré.
So, the ninety-second camera test, three days out:
- Open the exact app named in the invite. Record sixty seconds of yourself explaining a market-sizing structure out loud.
- Watch it back muted and check three things: is the shirt a blown-out white rectangle (switch to light blue or a pale pastel), is anything on the shirt or tie shimmering (change it), and does the jacket collar sit flat when you lean forward to write?
- Stand up on camera. If you would be embarrassed by what appears, you are not dressed. Deloitte says the same thing more politely.
Light in front of you, camera at eye level, headphones if you need them. From the chest up the jacket is the suit, which is why the notch table allows jacket-and-shirt on video. Spend what you save on the room: a plain wall, nothing moving behind you, and blur if the firm allows it.
Tonight's assignment
Two minutes for the clothes, then the rest of the evening where the points are.
First, put the outfit on and run the distraction score. Fix anything scoring 2 tonight, while shops are still open tomorrow. If the interview is virtual, do the sixty-second recording now and watch it back muted.
Second, with clothes removed from the list of things that can cost you, spend an hour on the things that can earn you something. A five-minute first rep gives you three typed turns of a case with instant scores and needs no account. When you want the room rather than the keyboard, the live voice case with Ned runs about eighteen minutes and ends with a seven-score debrief, a fair proxy for the form the real interviewer fills in. If the fit interview worries you more than the case, the behavioral practice pushes four follow-ups deep on each story, which is where presence is actually tested. Everything on CoachNed is open for seven days with no card; after that it is $120 for a recruiting season or $49 a month.
CoachNed is independent and is not affiliated with McKinsey, BCG, Bain, Deloitte, PwC, Goldman Sachs, or any other firm named in this article.
Frequently asked questions
Do I need to wear a suit for a virtual consulting interview?
No firm's published guidance requires one for video; McKinsey said in 2020 that business casual was fine, and Bain's virtual tips are about the room and the tech. A jacket over a collared shirt or plain top, with real trousers below the frame, is the one-notch answer.
Is a tie required at McKinsey, BCG, or Bain interviews?
No firm publishes a tie rule. Bain asks for "business professional attire" in person, which most people read as suit and tie or the equivalent; McKinsey and BCG say nothing. If the invite is silent, wear one to an in-person round; it is easy to remove in the lobby and impossible to add.
Can I wear a hijab, turban, or kippah to a consulting interview?
Yes. In the United States, Title VII requires employers to accommodate sincerely held religious dress and grooming practices for applicants as well as employees, short of undue hardship; the EEOC's guidance lists hijabs, turbans, and religious beards among its examples (EEOC fact sheet). Match colors to a conservative outfit and the distraction score is unaffected.
Do women have to wear heels to a consulting interview?
No. UK government guidance says a dress code requiring women to wear high heels with no equivalent requirement for men is likely to be unlawful (GOV.UK, Dress codes and sex discrimination, May 2018), and no consulting firm asks for them. Polished flats or a low block heel you can walk in score zero on the shoes row; a heel you cannot walk in scores two.
Sources
- Fall 2020 Global Recruiting Update, McKinsey careers blog — McKinsey's 2020 answer to "What should I wear?" for virtual interviews. Checked 2026-09-24.
- Interviewing at McKinsey — current virtual-interview guidance: camera on, virtual backgrounds and blurring disabled, no attire guidance. Checked 2026-09-24.
- Case interview preparation, Bain & Company — "Wear clean, business professional attire" in person; neutral or blurred background for virtual. Checked 2026-09-24.
- Case interview preparation, BCG Careers — no published attire guidance. Checked 2026-09-24.
- Interviewing tips, Deloitte South Africa — "When in doubt, overdress"; a business suit is still appropriate. Checked 2026-09-24.
- Video interview insights, Deloitte US-India offices — avoid stark white shirts and intricate patterns on camera; dress fully. Checked 2026-09-24.
- Not Just Cargo Shorts: The Slow Death of the Office Dress Code, The Fiscal Times — PwC and Accenture "dress for your day" policies in 2016 and the "in front of a CEO, you wear a suit" quote. Checked 2026-09-24.
- Suits and ties now optional, Goldman Sachs hedges dress code, Reuters — the March 2019 firmwide flexible dress code and the 36,000-employee figure. Checked 2026-09-24.
- Goldman Sachs relaxes dress code for all employees, BBC — the memo's "not appropriate every day and for every interaction" caveat. Checked 2026-09-24.
- Economic status cues from clothes affect perceived competence from faces, Nature Human Behaviour — nine studies on clothing cues and snap competence judgments, including the 129-millisecond exposure. Checked 2026-09-24.
- Employment data, consulting function, Harvard Business School Class of 2025 — $190,000 median base, $30,000 signing bonus, $40,000 variable bonus. Checked 2026-09-24.
- Dress for Success, Texas A&M University Career Center — "a little more conservatively and formally than employees typically dress." Checked 2026-09-24.
- Fact Sheet on Religious Garb and Grooming in the Workplace, EEOC — Title VII accommodation of religious dress for applicants. Checked 2026-09-24.
- Dress codes and sex discrimination: what you need to know, GOV.UK — requiring heels for women only is likely unlawful. Checked 2026-09-24.