You have spent weeks preparing your resume walkthrough, studying DCF analysis, and practicing behavioral questions. But there is one aspect of interview preparation that many candidates overlook until the last minute: what to wear. While your outfit alone will not get you the offer, the wrong attire can create a negative first impression that is hard to overcome.
Investment banking is one of the most formal industries in the professional world, and the dress code for interviews reflects that. In this guide, we will cover exactly what to wear (and what to avoid) so you can walk into your interview looking polished and professional.
The General Rule: Conservative and Professional
The overarching principle for investment banking interview attire is simple: dress conservatively and professionally. You want your clothes to project competence, attention to detail, and seriousness. The goal is for the interviewer to focus on what you are saying, not what you are wearing.
Investment banking has a more traditional dress code than most industries, and even though many banks have shifted to business casual for day-to-day work, interviews are still formal occasions. When in doubt, err on the side of being overdressed rather than underdressed.
What to Wear: Men
The Suit
Wear a solid, well-fitted suit in navy blue, charcoal gray, or dark gray. These are the standard colors for banking interviews and you cannot go wrong with any of them. Avoid black suits: while they are technically formal, they can read as too somber or as if you are attending a funeral rather than a business meeting. Patterned suits (pinstripes, checks) are best avoided for interviews; save those for after you have the job.
Fit matters more than brand. A well-tailored suit from a mid-range brand will look far better than an expensive designer suit that does not fit properly. Make sure the jacket shoulders align with your natural shoulder line, the sleeves show about half an inch of shirt cuff, and the trousers break slightly at the shoe.
The Shirt
Wear a solid white or light blue dress shirt. These are the safest and most universally appropriate choices. The shirt should be well-pressed with no wrinkles: first impressions matter, and a wrinkled shirt suggests carelessness. Make sure the collar fits properly and the shirt is not too tight or too loose through the body.
The Tie
Wear a conservative tie in a solid color or simple pattern. Navy, burgundy, and dark blue are safe choices. Subtle patterns like small dots or diagonal stripes are fine. Avoid loud colors, novelty prints, or anything that draws too much attention. The tie should reach your belt buckle and be tied in a clean knot (a four-in-hand or half-Windsor works well).
Shoes and Belt
Wear polished dress shoes in black or dark brown leather. Oxford or derby styles are the standard for banking interviews. Make sure your shoes are clean and in good condition: scuffed or worn shoes are one of the most common mistakes candidates make. Your belt should match your shoe color (black belt with black shoes, brown belt with brown shoes).
Accessories
Keep accessories minimal. A simple, classic watch is fine but not required. Avoid flashy jewelry, visible bracelets, or anything that could be distracting. Your socks should be dark (navy or black) and long enough that no skin shows when you sit down and cross your legs.
What to Wear: Women
The Suit
Wear a well-fitted suit in navy, charcoal, dark gray, or black. Women have more flexibility with black than men in banking interviews, and it is a perfectly appropriate choice. You can choose between a pantsuit or a skirt suit: both are equally professional. If you choose a skirt suit, the skirt should be knee-length or just above the knee.
As with men’s suits, fit is paramount. The jacket should fit well through the shoulders and waist without being too tight or too loose. Invest in tailoring if needed: it makes a noticeable difference.
The Blouse
Wear a simple, professional blouse in a solid color: white, light blue, cream, or another neutral tone. The neckline should be conservative. Shell tops and button-up blouses are both appropriate. Avoid anything too sheer, too bright, or too casual.
Shoes
Wear closed-toe heels or flats in black, navy, or nude. If you choose heels, keep them at a moderate height, typically two to three inches. You want to be comfortable, especially if your interview day involves walking between offices or meeting rooms. Avoid open-toe shoes, platform heels, or anything overly trendy.
Accessories and Jewelry
Keep jewelry simple and understated. Small earrings, a simple necklace, and a classic watch are all appropriate. Avoid large or dangling earrings, stacked bracelets, or anything that jingles or draws attention. A structured handbag or professional tote in a neutral color is fine for carrying your materials.
Grooming and Personal Presentation
Your overall grooming matters just as much as your clothing choices. Here are the basics:
- Hair. Keep your hair neat and well-groomed. For longer hair, make sure it is styled and out of your face. For shorter hair, ensure it is clean and trimmed.
- Nails. Clean, trimmed nails are a must. If you wear nail polish, stick to neutral or classic colors.
- Fragrance. Go easy on cologne or perfume, or skip it entirely. You will likely be in a small conference room, and strong scents can be off-putting. Less is more.
- Makeup. If you wear makeup, keep it natural and professional. The goal is a polished look, not a dramatic one.
What About Virtual Interviews?
With the rise of virtual first-round interviews, many candidates wonder if the dress code is different for video calls. The short answer: dress the same as you would for an in-person interview, at least from the waist up.
Wear your full suit jacket and dress shirt (or blouse). Yes, it might feel strange to dress formally in your bedroom, but it puts you in the right mindset and ensures you look professional on camera. Many candidates have been caught off guard when they needed to stand up during a video call: do not be one of them.
A few additional tips for virtual interviews:
- Avoid busy patterns: they can look distracting on camera.
- Solid colors work best on video.
- Make sure your lighting is good so your outfit and face are clearly visible.
- Check your background: it should be clean and uncluttered.
What About Superdays?
For a Superday, which typically involves multiple back-to-back interviews at the bank’s office, the same dress code applies. Wear a full suit, just as you would for any formal interview. You will be meeting with multiple people throughout the day, and your appearance should be consistent and professional for every interaction.
One practical tip: bring a small bag with essentials like breath mints, a lint roller, and a backup tie or blouse in case of spills or wardrobe malfunctions. Superdays can be long, and a little preparation goes a long way.
Common Mistakes to Avoid
Here are the most common attire mistakes we see from investment banking interview candidates:
- Wearing a black suit (men). It is one of the most common errors. Stick to navy or charcoal gray.
- Forgetting about fit. A baggy suit looks sloppy regardless of how expensive it was. Get your suit tailored.
- Wearing brown shoes with a charcoal suit. While brown shoes work with navy, they can clash with darker gray or charcoal. When in doubt, go with black shoes.
- Over-accessorizing. A flashy watch, bold cufflinks, or statement jewelry can come across as trying too hard. Keep it simple.
- Neglecting the details. Wrinkled shirts, scuffed shoes, loose threads, or a crooked tie: these small things are noticeable and suggest a lack of attention to detail, which is the last impression you want to give in banking.
- Dressing too casually. Even if you hear that a bank has a casual dress code, always dress formally for interviews. The interview dress code and the daily office dress code are different things.
Budget-Friendly Tips
You do not need to spend a fortune to look professional for your investment banking interview. Here are some practical tips for putting together a solid interview outfit on a budget:
- Invest in one good suit. You really only need one suit for interviews. A well-fitted navy or charcoal suit from a mid-range retailer will serve you well. Budget around $300 to $500 for a solid option, plus $50 to $100 for tailoring.
- Prioritize fit over brand. A $400 suit that fits perfectly will outperform a $1,500 suit that does not. Spend money on tailoring: it is the best investment you can make in your interview wardrobe.
- Buy versatile pieces. A navy suit, white shirt, and navy tie can be mixed and matched for multiple interviews. Add a light blue shirt for variety.
- Take care of your clothes. Dry clean your suit before interviews, steam or iron your shirt, and polish your shoes. Maintenance is free and makes a significant difference.
Final Thoughts
Your interview attire is one of the few things you have complete control over when walking into an investment banking interview. While no one has ever landed an offer because of their suit, plenty of candidates have made a negative first impression because of poor attire choices.
Keep it simple, conservative, and well-fitted. Invest time in the details: a pressed shirt, polished shoes, and a clean overall appearance signal the same attention to detail that banks expect in your work. Then forget about your clothes and focus on what really matters: demonstrating your technical knowledge, your story, and your genuine interest in the role.
For more on how to prepare for every aspect of your investment banking interviews, check out our complete interview preparation guide and our free resources page.
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If you are serious about breaking into investment banking, the best thing you can do is work with someone who has been through the recruiting process and knows exactly what top banks are looking for. At Wall Street Mastermind, we have helped over 2,500 students land offers at every bulge bracket and elite boutique bank on Wall Street. Book a free strategy call to learn how we can help you prepare for your interviews and maximize your chances of landing the offer.
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