Illegal Job Interview Questions and How to Respond
You walk into an interview prepared to talk about your skills, your results and why you want the job. Then the interviewer smiles and asks, "So, are you planning to start a family soon?" Suddenly you are not sure whether to answer, deflect or walk out.
Questions like this are more common than most candidates realise. Some interviewers ask them out of genuine curiosity or poor training. Others ask because the answer will quietly influence their decision. Either way, you have more power in that moment than you think.
This guide explains which topics employers should not ask about, why, and exactly what you can say if it happens to you.
The legal nuance most people miss
In the United States, many of these questions are not technically illegal to ask. What is illegal is making a hiring decision based on the answer. However, the U.S. Equal Employment Opportunity Commission (EEOC) treats such questions as potential evidence of discrimination, so careful employers avoid them entirely.
A few questions are directly prohibited by law. For example, under the Americans with Disabilities Act, employers cannot ask about disabilities or medical conditions before making a job offer. A growing number of states and cities also ban questions about your salary history outright.
The practical takeaway is simple. If a question has nothing to do with your ability to do the job, and touches on who you are rather than what you can do, it is a red flag.
The topics employers should not ask about
U.S. federal law protects candidates from discrimination based on race, colour, religion, sex (including pregnancy, sexual orientation and gender identity), national origin, age (40 and over), disability and genetic information. Most of the questions to watch out for map directly onto that list.
The good news is that nearly every illegal question has a legal version. Employers are allowed to ask about the job requirement. They are not allowed to ask about the personal characteristic behind it.
| Topic | Questions that cross the line | What an employer can legally ask instead |
|---|---|---|
| Age | How old are you? What year did you graduate? When do you plan to retire? | Are you over 18? (Or the legal minimum age for the role.) |
| Marriage and family | Are you married? Do you have children? Are you pregnant or planning to be? Who looks after your kids? | This role requires travel two weeks a month. Can you meet that schedule? |
| National origin and citizenship | Where are you from? Is English your first language? Are you a U.S. citizen? | Are you legally authorised to work in this country? Will you need visa sponsorship? |
| Race and ethnicity | What is your ethnic background? Questions or comments about your hair, skin, or accent. | No acceptable version. This should never come up. |
| Religion | What religion are you? Which holidays do you observe? Do you go to church? | This role requires weekend shifts. Are you able to work that schedule? |
| Disability and health | Do you have any disabilities? Have you ever been seriously ill? What medications do you take? How many sick days did you take last year? | Can you perform the essential functions of this job, with or without reasonable accommodation? |
| Genetic information | Does anyone in your family have a history of heart disease or cancer? | No acceptable version. Family medical history is off limits. |
| Sex, gender, and sexual orientation | Do you have a partner? What does your husband or wife do? How would you feel managing a team of men? | No acceptable version beyond job requirements. |
| Military discharge | What type of discharge did you receive? | What relevant skills or training did you gain in the military? |
| Arrests | Have you ever been arrested? | Depending on location and timing, questions about relevant convictions may be allowed (see below). |
| Union membership | Are you a union member? Do you support unions? | No acceptable version. |
Watch out for questions disguised as small talk. "Oh, nice ring, how long have you been married?" or "What a lovely name, where is it from?" can feel friendly, but they still collect information the employer should not be weighing.
Two questions that depend on where you live
Salary history
"What are you earning now?" is one of the most common interview questions, and in many places it is now banned. More than 20 U.S. states, including California, New York, Massachusetts, Illinois and Colorado, plus a long list of cities, prohibit employers from asking about your pay history. The aim is to stop past pay gaps from following people from job to job.
Even where it is legal, you are never obliged to answer. Steer the conversation towards the value of the role instead:
"I'd rather focus on what this role is worth. Based on my research and the scope you've described, I'm looking for something in the range of X to Y. Is that in line with your budget?"
If you want to walk in knowing your market value, it helps to hold credentials that justify a higher range. Our guide to certifications that pay shows which ones move the needle.
Criminal record
So-called "ban the box" or fair chance laws stop many employers from asking about criminal history on the application or in the first interview. Dozens of states and well over 100 cities have some version of these rules, and federal agencies and contractors have been covered by the Fair Chance to Compete for Jobs Act since 2021.
Under these laws, employers can usually only ask about convictions after a conditional job offer, and they must consider how relevant the offence is to the role. Questions about arrests that did not lead to a conviction are restricted in many places, and the EEOC warns that blanket policies excluding people with records can be discriminatory. Jobs involving children, vulnerable adults or security clearance often have legitimate exceptions.
How the rules differ outside the U.S.
The principle is similar almost everywhere: questions should relate to the job, not to protected personal characteristics. The details and the strength of enforcement vary a lot, so check the rules where the job is based.
| Country | Main law | What it means in an interview |
|---|---|---|
| United Kingdom | Equality Act 2010 | Protects nine characteristics: age, disability, gender reassignment, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex, and sexual orientation. Section 60 bars most health and disability questions before a job offer. Right to work checks are legal and expected. Spent convictions usually do not have to be disclosed. |
| Canada | Canadian Human Rights Act and provincial human rights codes | Questions about age, marital or family status, religion, disability, ethnic origin, and similar grounds are generally prohibited. Each province has its own code and human rights tribunal. |
| Nigeria | Constitution (Section 42), Discrimination Against Persons with Disabilities (Prohibition) Act 2018, HIV and AIDS (Anti-Discrimination) Act 2014 | Employers cannot discriminate on the basis of disability or require an HIV test as a condition of employment. Questions about age, marital status, and religion are still common, and private sector protections are less developed, but disputes can go to the National Industrial Court. |
| European Union | EU equal treatment directives and GDPR | Discrimination on grounds such as sex, race, religion, disability, age, and sexual orientation is banned, and GDPR limits how much personal data employers can collect and keep. |
| Australia | Fair Work Act 2009 and federal anti-discrimination Acts | Adverse action based on protected attributes, including during recruitment, is unlawful. Complaints go to the Fair Work Ombudsman or the Australian Human Rights Commission. |
If you are applying for a remote role with an overseas company, the law of the country where you will be employed usually applies, not the law where the company is headquartered.
What to say in the moment
There is no single right response. The best one depends on how much you want the job, how the question was asked and how comfortable you feel. Here are five options, from the softest to the firmest.
1. Answer the concern behind the question
This is usually the smartest move. Most improper questions hide a legitimate worry about reliability, availability or commitment. Address that worry without giving away the personal detail.
Question: "Do you have kids?"
Response: "If you're asking about my availability, I'm fully able to meet the hours and travel this role requires."
Question: "How old are you?"
Response: "I bring 15 years of experience and I've kept my skills current, most recently with a certification in data analytics last year."
2. Redirect to your qualifications
Acknowledge the question briefly and steer back to the job.
"I prefer to keep my personal life separate from work, but I'm happy to tell you more about how I led the system migration at my last company."
3. Ask how it relates to the role
A calm, curious question gives the interviewer a chance to realise their mistake and rephrase.
"Could you help me understand how that relates to the position? I want to make sure I give you the information you need."
4. Answer it anyway
You are allowed to answer if you are comfortable and believe the detail will not hurt you. Some candidates happily mention their family or faith. Just know that you are under no obligation to do so.
5. Decline politely
If the question feels clearly inappropriate, you can say no without being confrontational.
"I'd rather not discuss that, as I don't think it affects my ability to do this job. Is there anything else about my experience I can tell you?"
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Whatever you choose, keep your tone even. Staying calm keeps you in control and makes it easier to judge what the question tells you about the company.
These questions can also appear in automated video interviews and chatbot screenings, where you cannot ask for clarification. Our guide to the AI interview and screening stack explains how those tools work and how to handle them.
What to do after the interview
If an inappropriate question left you uneasy, or you suspect it cost you the job, take these steps while the details are fresh.
- Write everything down the same day. Note the date, time, location or video platform, the interviewer's name and title, the exact question, how you answered and anyone else who was present.
- Keep your records. Save the job advert, emails, calendar invites and any rejection message. Screenshots are fine.
- Decide whether to raise it with the company. A short, factual email to HR or the recruiter can be enough. Many companies take this seriously, especially if the interviewer was poorly trained rather than malicious.
- Get advice if you think you were rejected unfairly. An employment lawyer, a legal aid clinic or your local equality body can tell you whether you have a case. Many offer free initial consultations.
- File a formal complaint within the deadline. Job applicants, not just employees, are protected. Deadlines are short, so do not wait.
| Where | Who to contact | Typical deadline |
|---|---|---|
| United States | EEOC, or your state or local fair employment agency | 180 days from the incident, extended to 300 days in most states with their own anti-discrimination agency. |
| United Kingdom | ACAS early conciliation, then an employment tribunal | 3 months less one day from the incident. |
| Canada | Provincial human rights commission or tribunal (federal for federally regulated employers). | Varies by province, often 1 year. |
| Nigeria | An employment lawyer, then the National Industrial Court; disability cases can involve the National Commission for Persons with Disabilities. | Seek advice promptly, as limitation periods vary. |
Reporting does not mean you have to sue anyone. In many cases a complaint simply leads to mediation, a settlement or better training for the people doing the hiring.
Red flag or honest mistake?
Not every awkward question signals a discriminatory employer. Small businesses in particular often have managers who were never trained in interviewing, and our article on the employment law mistakes that hurt small businesses shows how common that gap is.
Ask yourself a few questions afterwards. Did the interviewer rephrase or apologise when you redirected? Was it a single slip, or a pattern across several topics? Did other people on the panel look uncomfortable? A one-off clumsy question may be forgivable. Repeated probing about your age, family or background tells you a lot about the culture you would be joining.
Also remember that some checks are perfectly legitimate. Verifying your identity, confirming your right to work and checking references are normal parts of hiring, especially now that employers are dealing with fake candidates. See our guide on proving you are a real candidate for what to expect.
The bottom line
An interview is a two-way assessment. You are judging the employer as much as they are judging you, and the questions they ask are evidence. Know the off-limits topics, prepare one or two calm responses in advance and keep the focus on what you bring to the role.
If you are job hunting right now, our guide to making the most of the fall hiring window will help you time your applications, and a strong, focused CV means interviewers spend their time on your skills rather than your personal life.
This article is for general information only and is not legal advice. Employment laws change and vary by country, state and city. If you believe you have experienced discrimination, speak to a qualified employment lawyer or your local equality body.
