Informal Interview vs Formal Interview: Key Differences

Everyone · Explainer · Updated October 1, 2026 · LearnLife Editorial

What is an informal interview versus a formal interview?

An informal interview is usually a relaxed, unstructured conversation that might happen over coffee, during networking events, or as a spontaneous chat. It focuses on learning about someone’s experience, skills, or industry insights without a rigid agenda. In contrast, a formal interview is a scheduled, systematic process where an employer asks specific questions to assess if a candidate fits a job role. Formal interviews often follow a set format, including introductions, behavioral questions, and discussions about qualifications.

For example, an informal interview might be a 20-minute chat with a company employee to understand their daily work and company culture. A formal interview, on the other hand, could be a one-hour meeting with a hiring manager who asks about your past job roles, skills, and how you would handle particular work scenarios. Each serves different purposes but both play important roles in career advancement.

How does each type of interview typically work?

In an informal interview, the conversation flows naturally. You might start by introducing yourself, then ask open-ended questions like “What’s your experience been like in this industry?” or “How did you get started in your career?” The goal is to build rapport and gather insights without pressure. There’s often no scoring or evaluation, and the tone is friendly and exploratory.

Formal interviews usually follow a structured format. The interviewer asks predetermined questions designed to evaluate your competencies, such as “Tell me about a time you solved a difficult problem at work.” You may also be asked to complete tests or provide references. The process often includes multiple rounds, with feedback based on clear criteria.

For example, if applying for a marketing role, a formal interview might include questions about campaign results you’ve achieved, while an informal interview might focus on industry trends and career advice.

Why does knowing the difference matter for your career or networking?

Recognizing whether you’re in an informal or formal interview helps you adjust your approach and expectations. In an informal interview, showing curiosity, asking insightful questions, and listening can create connections that lead to opportunities. You don’t have to prepare rehearsed answers but should be ready to share your story casually.

In a formal interview, preparation is key. Practicing common questions, dressing appropriately, and demonstrating professionalism can improve your chances of success. Confusing the two may lead to under- or over-preparation, hurting your impression.

For job seekers or professionals building their network, mastering both types lets you navigate diverse situations—from casual meetups to official hiring interviews—with confidence.

What terms do people confuse with informal and formal interviews?

People often mix up informal interviews with informational interviews, coffee chats, or networking meetings. While similar, an informational interview specifically seeks advice or insights about a career path rather than a hiring decision. Coffee chats are casual and may not even focus on career topics. Formal interviews are sometimes confused with assessments or auditions, but those usually come after initial interviews.

Understanding these distinctions helps you communicate your intentions clearly and prepare appropriately. For example, asking for an informational interview signals you want to learn rather than apply, setting the right tone.

How can you prepare differently for informal and formal interviews?

Preparation for informal interviews involves researching the person or company, preparing thoughtful questions, and being ready to share your background briefly. Dress is usually business casual, and the setting is often relaxed. Focus on building rapport and learning.

For formal interviews, preparation means reviewing the job description, practicing answers to common questions, preparing examples of your achievements, and dressing professionally. It helps to rehearse with a friend or mentor and bring copies of your resume and references.

Here’s a quick preparation checklist:

What should you do after each type of interview?

After an informal interview, send a brief thank-you note expressing appreciation for their time and insights. Mention something specific you learned or enjoyed about the conversation to personalize it. This keeps the door open for future connections.

Following a formal interview, send a more formal thank-you email that reiterates your interest in the position, highlights key points from the interview, and thanks the interviewer for considering you. This can reinforce a positive impression and keep you top of mind.

In both cases, reflect on what you learned and any next steps discussed. For informal interviews, this might mean following up with another contact or researching career paths. For formal interviews, it could mean preparing for a second round or negotiating an offer.

When is it best to use an informal interview, and when should you expect a formal one?

Informal interviews are great when you’re exploring career options, networking, or seeking advice. They’re typically not tied to a specific job opening but help build relationships and gather information. For example, reaching out to a professional for a coffee chat to learn about their job is an informal interview.

Formal interviews happen when you apply for a job and the employer wants to evaluate your fit for the role. These are scheduled and part of the hiring process. Preparing for these with care increases your chances of success.

Knowing which type you’re engaging in helps you play the right role—whether as an inquisitive learner or a job candidate.

Frequently asked questions

Can an informal interview turn into a formal interview?

Yes, sometimes an informal conversation can lead to a formal interview invitation if the employer is interested in hiring you. It’s wise to be professional and prepared even in informal settings to seize such opportunities.

How long does an informal interview usually last?

Informal interviews typically last between 15 to 30 minutes, depending on the setting and participants’ availability. They’re meant to be brief, casual conversations rather than in-depth assessments.

Should I dress formally for an informal interview?

Dressing business casual is generally appropriate for informal interviews unless you know the setting is very casual. It’s better to be slightly overdressed than underdressed to make a good impression.

Are formal interviews always face-to-face?

No, formal interviews can be conducted in person, over the phone, or via video calls. The key is that they follow a structured format regardless of the medium.

What is the main goal of an informal interview?

The main goal is to gather information, build relationships, and explore opportunities without the pressure of a job offer decision. It helps expand your network and gain insights into a field or company.