How to Conduct a Job Interview: The Small Business Owner's Complete Guide
How to conduct a job interview without an HR department. 7-step process, structured questions, scorecard template, and legal compliance.
How to Conduct a Job Interview
The complete guide for small business owners conducting interviews without an HR department
The first job interview I conducted was a disaster. I sat across from a candidate, asked "so, tell me about yourself," and then spent 45 minutes having a pleasant conversation that told me absolutely nothing about whether this person could do the job. I hired them based on my gut feeling. They lasted two months.
The second interview I conducted was only slightly better. I had a list of questions, but I asked them in a different order for each candidate, added bonus questions for people I liked, and skipped questions for people I had already decided against. I did not take notes. I did not use a scorecard. I made the decision based on who I enjoyed talking to the most, which is the worst predictor of job performance outside of handwriting analysis.
It took me a dozen hires and several expensive mistakes to learn that conducting a job interview is a skill, not an instinct. The difference between a good interview and a bad one is not talent or experience. It is structure: same questions, same scoring, same process for every candidate. This guide covers the complete process for conducting an interview when you have no HR department, no formal training, and no margin for a bad hire. I built the hiring-to-onboarding workflow in FirstHR because the gap between "the interview went great" and "the new hire is actually productive" is where most small businesses lose the investment they made in recruiting.
Why Structured Interviews Matter More for Small Business
A structured interview uses the same questions and the same scoring criteria for every candidate. An unstructured interview is a free-form conversation where the interviewer follows their curiosity, asks different questions to different people, and makes a decision based on overall impression. Most small business owners default to the unstructured approach because it feels natural. It is also significantly worse at predicting job performance.
Research on interview validity, including work compiled by the U.S. Office of Personnel Management, consistently shows that structured interviews predict job performance roughly twice as well as unstructured ones (OPM). The validity coefficient jumps from approximately 0.20 for unstructured interviews to approximately 0.42 for structured ones. In practical terms: structured interviews cut your odds of making a bad hire nearly in half.
For a 500-person company, a bad hire is absorbed by the system. For a 15-person company, a bad hire is a crisis that the founder manages personally while the team absorbs the workload. The margin for error is smaller, which makes the interview method more important, not less. The hiring manager guide covers how the role of interviewer typically falls to the founder or department lead at companies with 5-50 employees.
| Interview Type | What It Looks Like | Validity (Predicting Performance) | Best For |
|---|---|---|---|
| Unstructured | Free-form conversation, different questions for each candidate, no scoring | Low (~0.20) | Casual catch-up coffee, not hiring decisions |
| Semi-structured | Core set of questions with room for follow-ups, informal scoring | Medium (~0.30) | Second-round conversations after structured first round |
| Structured | Same questions, same order, same rubric for every candidate | High (~0.42) | First-round interviews, high-stakes hiring |
| Structured + work sample | Structured interview combined with a real or simulated task | Highest (~0.50+) | Senior roles, technical positions, leadership hires |
Step 1: Prepare Before You Talk to Anyone
Interview preparation takes 30 minutes and determines whether the next 45 minutes produce useful information or wasted time. Most small business owners skip preparation because they believe they can improvise. You can. The question is whether improvisation produces a decision you can defend, or a feeling you cannot explain.
Review the job description (10 minutes)
Read the job description you posted and identify the 3-5 skills or attributes that matter most for success in this role. Not the nice-to-haves. The must-haves. If you could only evaluate the candidate on three things, what would they be? Those three things become your interview criteria. The job responsibilities guide covers how to define these before you start hiring.
Read the resume with purpose (10 minutes)
Do not read the resume to form an opinion. Read it to identify 2-3 specific things you want to explore. A gap in employment, a short tenure at the last job, a claim about managing a team of 15 people, or a specific achievement you want them to walk you through. These become your follow-up questions during the interview.
Prepare 5-7 structured questions (10 minutes)
Write the questions you will ask every candidate. The same questions, in the same order, for every person. This takes less time than you think because most of the questions map directly to the 3-5 criteria you identified from the job description. You are not writing an exam. You are writing a conversation guide that ensures you evaluate every candidate on the same dimensions.
Step 2: Build Your Structured Question Bank
The quality of an interview depends entirely on the quality of the questions. Two types of questions dominate effective interviews: behavioral questions (what you did in the past) and situational questions (what you would do in a hypothetical scenario). Behavioral questions are more predictive because past behavior is the best available predictor of future behavior.
Behavioral questions (tell me about a time when...)
These ask the candidate to describe a specific past experience. Strong behavioral questions target specific competencies rather than general performance. "Tell me about a time you went above and beyond" is vague. "Tell me about a time you had to deliver a result with incomplete information and a tight deadline" is specific and reveals how the person handles real-world pressure.
| Competency | Behavioral Question | What a Strong Answer Includes |
|---|---|---|
| Problem-solving | Tell me about a time you identified and fixed a problem nobody asked you to fix. | A specific situation, the root cause they found, what they did, and a measurable result |
| Collaboration | Describe a time you worked with someone whose style was very different from yours. | How they adapted, what compromise looked like, and the outcome for the project |
| Reliability | Tell me about a time you had to choose between competing deadlines. How did you decide what to prioritize? | A framework for prioritization, communication to stakeholders, and the result |
| Adaptability | Describe a time when your role or responsibilities changed significantly. How did you handle the transition? | Specific actions taken to adjust, how quickly they adapted, and what they learned |
| Initiative | Tell me about something you improved at a previous job without being asked to. | A real example with measurable impact, not a hypothetical aspiration |
Situational questions (what would you do if...)
These present a hypothetical scenario and ask the candidate to walk through their approach. They are less predictive than behavioral questions but useful for roles where candidates lack directly comparable experience. For entry-level hires or career changers, situational questions fill the gap that behavioral questions cannot cover.
| Scenario | Situational Question | What You Are Evaluating |
|---|---|---|
| Customer conflict | A customer calls angry about a mistake we made. They want a refund but our policy does not allow it. What do you do? | Empathy, de-escalation, and judgment about when to follow policy vs when to make an exception |
| Competing priorities | Your manager gives you three tasks due by end of day, but you can only finish two. How do you handle it? | Communication, prioritization framework, and willingness to proactively flag problems |
| Team tension | You notice two teammates are not communicating well and it is affecting a project. What do you do? | Whether they address it directly or avoid it, and how they balance diplomacy with accountability |
| Mistake handling | You realize you sent a report to a client with incorrect numbers. What is your first step? | Speed of response, ownership vs blame-shifting, and whether they think about prevention |
For the full list of 50+ questions organized by type, the interview questions guide covers behavioral, situational, culture-fit, and role-specific questions with scoring guidance.
Step 3: Know What You Legally Cannot Ask
The Equal Employment Opportunity Commission prohibits employment decisions based on protected characteristics. This does not mean certain topics are technically off-limits. It means questions that reveal protected information create legal risk because they suggest the information influenced the hiring decision (EEOC). The safest approach is simple: do not ask it if it is not directly related to the candidate's ability to perform the job.
| Category | Do NOT Ask | Ask Instead |
|---|---|---|
| Age | How old are you? When did you graduate? | Are you legally authorized to work in the US? |
| Family status | Are you married? Do you have children? Are you pregnant? | Are you available to work the schedule this role requires? |
| Religion | What church do you attend? Do you observe any religious holidays? | This role requires occasional weekend work. Is that something you can accommodate? |
| National origin | Where are you from? What is your native language? | Are you authorized to work in the United States? Do you speak any languages relevant to this role? |
| Disability | Do you have any disabilities? How is your health? | Can you perform the essential functions of this position with or without reasonable accommodation? |
| Arrest record | Have you ever been arrested? | Have you been convicted of a crime relevant to this position? (Check state law: some states prohibit this question entirely) |
| Salary history | What was your salary at your last job? | What are your compensation expectations for this role? (Required in states with pay transparency laws) |
| Genetic information | Does anyone in your family have a history of disease? | Never appropriate. Do not ask under any circumstances. |
State laws add additional protections. Several states and cities ban salary history questions. Some prohibit questions about criminal history on the initial application ("ban-the-box" laws). A few restrict credit check inquiries. Check your state's labor department for specifics. The HR laws guide covers federal employment law thresholds by company size.
Step 4: Run the Interview in 45-50 Minutes
A well-structured first-round interview takes 45 to 50 minutes. Shorter interviews do not provide enough data to make a confident decision. Longer interviews produce diminishing returns and increase the chance of bias (you start over-weighting the last 15 minutes because they are freshest in memory).
How to open the interview
The opening sets the tone. Start by thanking the candidate for their time, offering water or coffee if in-person, and making 2-3 minutes of casual conversation. Talk about the weather, their commute, or something neutral. This is not small talk for its own sake. It is a deliberate tactic to reduce the candidate's anxiety so they give authentic answers instead of performing.
After the small talk, explain the structure: "Here is how the next 45 minutes will work. I will start by telling you about the company and the role. Then I will ask you some questions about your experience. After that, you will have time to ask me anything. And I will close by explaining next steps. Sound good?" This gives the candidate a roadmap and reduces the "what is coming next?" anxiety that produces stilted answers.
The 80/20 listening rule
The most common mistake interviewers make is talking too much. The candidate should be speaking 80% of the time. You should be speaking 20%. Your job is to ask questions, listen carefully, take brief notes, and ask follow-ups. If you catch yourself explaining the company culture for 15 minutes, you are giving a presentation, not conducting an interview.
How to close the interview
Always close with specific next steps. "We are interviewing three more candidates this week and plan to make a decision by Friday. You will hear from us either way by end of day Friday." This is professional, creates a deadline for yourself, and respects the candidate's time. "We will be in touch" is not a closing. It is an evasion.
Step 5: Score the Interview Using a Simple Rubric
A scorecard transforms a subjective impression into a comparable data point. Without one, you remember who you liked. With one, you know who demonstrated the competencies the job requires. The difference between these two things is the difference between a hiring decision and a popularity contest.
How to build a scorecard
A scorecard has three columns: the competency being evaluated, the question asked, and a 1-5 rating. One means the candidate showed no evidence of the competency. Five means they provided a strong, specific example with measurable results. Keep it to 5 criteria maximum. More than that and you dilute the signal.
| Skill | Question Asked | Rating (1-5) | Notes |
|---|---|---|---|
| Problem-solving | Tell me about a time you solved a problem without clear instructions. | 4 | Described rebuilding inventory process from scratch. Found root cause independently. Clear STAR structure. |
| Communication | Describe a situation where you had to explain something complex to someone non-technical. | 3 | Decent example but stayed abstract. Follow up: ask for a more specific scenario next round. |
| Reliability | How do you handle competing deadlines when you cannot finish everything? | 5 | Excellent. Described prioritization framework they actually use. Gave concrete example with numbers. |
| Culture fit | What kind of work environment brings out your best performance? | 4 | Described preference for autonomy with regular check-ins. Matches our team style well. |
| Role-specific | Walk me through how you would handle [specific scenario relevant to this role]. | 3 | Showed understanding of the basics but missed a key compliance step. Trainable, not a deal-breaker. |
| Overall Score | 19/25 | Advance to reference check. Strong on reliability and problem-solving. Coach on compliance awareness during onboarding. | |
Scoring rules
Complete the scorecard within 30 minutes of the interview ending. Waiting until the end of the day introduces recency bias (you remember the last candidate better than the first). Waiting until tomorrow introduces memory distortion. The 30-minute window is when your observations are most accurate and least influenced by subsequent conversations.
Score each criterion independently. Do not let a strong answer on one question inflate scores on others. A candidate who gave an excellent problem-solving example (5/5) but could not articulate how they work with others (2/5) should not get a 4/5 on collaboration because you liked them overall. Independent scoring per criterion is what makes scorecards more predictive than gut feelings.
| Rating | What It Means | Example Signal |
|---|---|---|
| 1 - No evidence | Candidate could not provide a relevant example or gave a response that was off-topic | Long pause followed by 'I cannot think of a specific example' |
| 2 - Weak evidence | Candidate described a vague or secondhand example without specific details | General statement about team values without personal involvement |
| 3 - Adequate evidence | Candidate gave a relevant example but lacked specifics or measurable results | Described the situation and their role but could not quantify the outcome |
| 4 - Strong evidence | Candidate provided a specific example with clear actions and a positive result | Detailed STAR response with a concrete outcome |
| 5 - Exceptional evidence | Candidate gave multiple specific examples with measurable impact and clear learning | Quantified results, described what they would do differently, showed self-awareness |
Step 6: Make the Decision Within 48 Hours
Speed matters in small business hiring. The best candidates are interviewing at multiple companies. Every day you delay a decision increases the chance they accept another offer. The 48-hour rule forces you to make a decision while your assessment is fresh and before you lose the candidate to a faster competitor.
How to compare candidates
Compare scorecard totals, not impressions. If Candidate A scored 22/25 and Candidate B scored 18/25, the decision is straightforward. If they are close (within 2-3 points), look at which criteria each candidate was strongest on and match that to the role's most critical requirements. A customer service hire who scored 5/5 on communication and 3/5 on problem-solving may be a better fit than one who scored 4/4 on both.
Conduct reference checks before extending the offer
Reference checks happen after the final interview and before the offer. Not after the offer. A verbal offer followed by a reference-based withdrawal creates legal risk and reputational damage. Call three references (at least one direct supervisor), ask structured questions, and document the responses. The reference check guide covers the full process including 15 specific questions to ask.
Notify all candidates
Every candidate who interviewed deserves a response, including those you did not select. A brief email is sufficient: "Thank you for taking the time to interview for [role]. We have decided to move forward with another candidate. We appreciate your interest in [company name]." This takes 2 minutes per candidate and protects your employer brand. Small business owners often skip this because they are busy. The candidates notice.
Step 7: From Offer to Day 1 (The Step Nobody Covers)
Every interview guide ends at Step 6: make the decision, send the offer. But the interview process is not complete when the offer is signed. It is complete when the new hire is productive. The gap between "offer accepted" and "productive employee" is 60 to 90 days of onboarding, and the person who conducted the interview, the hiring manager, owns that transition.
This is where structured hiring pays its biggest dividend. Everything you learned during the interview and reference checks informs how you onboard this specific person. A candidate who demonstrated strong independence during the interview needs less hand-holding in Week 1. A candidate who struggled with a role-specific scenario needs targeted training in that area during the first 30 days. The interview is not just a selection tool. It is the first data collection step in a successful onboarding process.
| When | What to Do | Why It Matters |
|---|---|---|
| Day of acceptance | Send a personal welcome email from the hiring manager (not a template) | Sets the tone: this is a team that communicates and values people |
| Within 48 hours | Send pre-boarding paperwork: I-9, W-4, direct deposit, handbook acknowledgment | Legal compliance starts before Day 1. Late I-9 completion carries penalties. |
| 1 week before start | Confirm start date, share first-week schedule, introduce the buddy or mentor | Eliminates first-day anxiety. The candidate has already mentally joined the team. |
| Day 1 | Run orientation: compliance forms, team introductions, role expectations | First impressions determine whether the new hire commits or starts looking elsewhere |
| End of Week 1 | First 1-on-1: how is it going, what questions do you have, what do you need | Catches confusion and misalignment before they become patterns |
| Day 30 | Formal review against the goals set during onboarding | Confirms the hiring decision was right and course-corrects if needed |
The employee onboarding checklist covers every task from pre-boarding through Day 90. The 30-60-90 day plan guide covers how to structure the goals that onboarding is measured against. The pre-boarding guide covers the timeline between offer acceptance and Day 1.
Interview Formats Compared: Which One to Use When
Not every interview format works for every situation. The right format depends on the role, your team size, and how many rounds you plan to conduct.
| Format | Structure | Duration | Best For | Not Ideal For |
|---|---|---|---|---|
| One-on-one (structured) | Hiring manager asks all questions, scores independently | 45-50 min | Most roles, first-round interviews, small teams | Senior/exec roles where multiple perspectives are needed |
| Panel interview | 2-3 interviewers ask questions from a shared question set | 60-75 min | Roles that interact with multiple teams, leadership hires | Entry-level roles (overkill, intimidates candidates) |
| Working interview / work sample | Candidate completes a real or simulated task | 60-90 min | Technical roles, creative positions, roles where output quality matters | Roles where output is hard to evaluate in isolation |
| Phone screen | Brief call to verify basics before investing in a full interview | 15-20 min | High-volume roles, initial filter before in-person rounds | Final decision. Never hire based on a phone screen alone. |
| Group interview | Multiple candidates interviewed simultaneously | 45-60 min | Seasonal retail, hospitality, high-volume roles | Knowledge work, office roles, anything requiring individual assessment |
For most small business hires, a structured one-on-one interview in the first round followed by a shorter second conversation (30 minutes, focused on fit and logistics) is sufficient. Save panel interviews for roles that interact with multiple teams. Save work samples for roles where output quality is critical and hard to assess through questions alone.
How to Conduct a Remote Interview
Remote interviews follow the same structure as in-person interviews with a few adjustments for the video format. The questions, scoring, and process are identical. What changes is the logistics and the candidate's comfort level.
| In-Person | Remote Adjustment | Why It Matters |
|---|---|---|
| Greet at reception, walk to interview room | Send video link 24 hours in advance, confirm it works 5 minutes before start | Technical issues waste the first 10 minutes and fluster the candidate |
| Offer water or coffee | Ask 'are you comfortable, do you need a minute before we start?' | Acknowledges the awkwardness of talking to a screen |
| Read body language naturally | Focus on voice tone, pacing, and facial expressions. Do not penalize for eye contact (they are looking at the screen, not the camera) | Video distorts non-verbal cues. Over-indexing on them leads to bad assessments |
| Share documents by hand | Use screen share for job descriptions or scorecards | Keeps both parties literally on the same page |
| Walk them out personally | Stay on the call for 30 seconds after the formal close | Abrupt disconnects feel impersonal. A brief 'thanks again, really enjoyed talking with you' makes a difference |
One additional rule for remote interviews: record them (with the candidate's consent) if you plan to involve other team members in the decision. A 45-minute recording is more useful than a second-round interview that asks the same questions because the original interviewer forgot half the conversation. The remote onboarding guide covers what happens after a remotely-hired candidate accepts the offer.
Panel Interviews for Small Teams
Panel interviews involve two or three interviewers asking questions from a shared set. They are useful when the new hire will work across multiple teams and each team lead needs to assess fit. They are counterproductive when used for entry-level roles where a single interviewer can evaluate all relevant criteria.
How to run a panel interview
Assign each interviewer 2-3 questions from the shared set. One person leads the interview (opens, closes, manages time). Each panelist scores independently on their assigned criteria. Debrief after the candidate leaves, not during the interview. Never let one panelist's body language influence the others' assessment in real time.
When panel interviews go wrong
The most common failure mode: three interviewers asking the same questions because nobody coordinated beforehand. The candidate answers "tell me about your biggest challenge" three times and wonders whether this team communicates at all. Pre-assign questions. Brief the panel in 5 minutes before the candidate arrives. Debrief in 10 minutes after they leave. That 15 minutes of coordination makes the difference between a panel interview that adds value and one that wastes everyone's time.
The recruitment process guide covers how panel interviews fit into the broader hiring workflow, including when to schedule them relative to other rounds.
The Complete Interview Checklist
Use this checklist for every interview. Print it, keep it with your question set and scorecard, and check off each item. Structure is what separates a hiring process from a guessing game.
Common Mistakes When Conducting Interviews
After conducting dozens of interviews and coaching other founders through their first hires, eight mistakes come up repeatedly. All of them reduce the quality of the hiring decision, and all of them are fixable with preparation.
The pattern behind all eight mistakes: treating the interview as a conversation instead of an assessment. A great conversation produces a friend. A great assessment produces a good hire. They are not the same thing. The talent acquisition guide covers how the interview fits into the broader hiring strategy for companies with 5-50 employees.
Frequently Asked Questions
What are the 7 steps of conducting an interview?
The 7 steps are: (1) Prepare by reviewing the job description and resume, (2) Build 5-7 structured questions based on the role requirements, (3) Know what you legally cannot ask (EEOC protected categories), (4) Run the interview in 45-50 minutes following a consistent structure, (5) Score the interview using a 1-5 rubric on each criterion, (6) Make the hiring decision within 48 hours while the conversation is fresh, and (7) Transition from offer to onboarding by preparing the offer letter, collecting compliance paperwork, and setting up the first 30 days.
How do you start an interview as the interviewer?
Start by greeting the candidate warmly and spending 2-3 minutes on casual conversation to reduce nerves. Then briefly explain the interview structure: how long it will take, what topics you will cover, and when they will have a chance to ask their own questions. This gives the candidate a mental roadmap and helps them give better answers because they are not wondering what comes next.
What questions should I ask when conducting a job interview?
Ask behavioral questions that start with 'tell me about a time when...' rather than hypothetical questions that start with 'what would you do if...'. Focus on 5-7 questions tied to the core competencies of the role. Include at least one question about problem-solving, one about working with others, one about handling pressure or deadlines, and one role-specific scenario. Ask every candidate the same questions to keep comparisons fair.
What is the STAR method of interviewing?
STAR stands for Situation, Task, Action, Result. It is a framework for evaluating behavioral interview answers. A strong answer describes a specific Situation, explains the Task or challenge, details the Actions the candidate took, and shares the measurable Result. When a candidate gives a vague answer, use STAR as a follow-up prompt: 'Can you walk me through the specific situation, what you did, and what the outcome was?'
What should an interviewer avoid asking?
Do not ask about age, race, religion, national origin, disability, pregnancy, marital status, sexual orientation, gender identity, or genetic information. Do not ask about arrest records (though conviction questions may be permissible depending on state law and job relevance). Do not ask about salary history in states with pay transparency laws. The rule: if the question is not directly related to the candidate's ability to perform the job, do not ask it.
What is the difference between structured and unstructured interviews?
A structured interview uses the same pre-determined questions and scoring criteria for every candidate. An unstructured interview is a free-form conversation without set questions. Research shows structured interviews predict job performance roughly twice as well as unstructured ones. For small businesses making high-stakes hiring decisions with limited data, the structure is essential because every hire significantly impacts the team.
How long should a job interview last?
A standard first-round interview should last 45-50 minutes. This allows 5 minutes for introductions, 25 minutes for structured questions, 10 minutes for the candidate's questions, and 5 minutes for closing. Going longer than 60 minutes produces diminishing returns and increases the chance of bias (the candidate you liked best at minute 15 gets confirmed for the next 45 minutes). Panel interviews can run 60-75 minutes because multiple interviewers share the questioning.
How many interviews should a small business conduct before hiring?
Two rounds is sufficient for most roles at a small business: a structured first interview (45-50 minutes) and a shorter second conversation (30 minutes) focused on fit and logistics. For senior or leadership roles, add a third round with a work sample or presentation. More than three rounds for non-executive roles signals indecision, not thoroughness, and risks losing candidates to faster-moving competitors.
Should I take notes during an interview?
Yes. Tell the candidate at the start that you will be taking notes because you want to accurately remember their responses. Write brief observations, not full transcripts. Focus on key examples, specific numbers or results they mention, and anything that stands out positively or negatively. Complete your scorecard ratings within 30 minutes after the interview while the conversation is still fresh.
What happens after the interview?
Complete your scorecard immediately. Compare scores across all candidates who interviewed for the role. Make a decision within 48 hours. Conduct reference checks on your top candidate. Prepare the offer letter. Notify all candidates of the outcome, including those you are not selecting. For the selected candidate, transition immediately into pre-boarding: send the welcome email, collect compliance paperwork, and set up the first week schedule.