Illegal Interview Questions: What They Can't Ask, and What to Do When They Do
A plain guide to illegal interview questions in the US — the protected categories, the innocent-sounding questions that cross the line, and three ways to respond in the room.
In the US, most so-called illegal interview questions are not illegal to ask — they are illegal to decide on. Federal law enforced by the EEOC bars employers from basing hiring decisions on protected characteristics: race, colour, religion, sex (including pregnancy, sexual orientation and gender identity), national origin, age 40 and over, disability, and genetic information. Many states add more categories, and a number of jurisdictions ban asking about salary history at all.
That distinction matters more than any script. A question is evidence; a decision is the violation. This is general information, not legal advice — rules vary by state and country, and the EEOC is the authority to check.
Which categories make an interview question illegal
The protected categories above are the spine of it. A question becomes a problem when it probes one of them, or reliably reveals one, without connecting to whether you can do the job.
Federal law is the floor, not the ceiling. States and cities routinely protect more — marital status, criminal history timing, credit, immigration status details, caregiver status, arrest records, and in several places salary history. Outside the US the framework changes entirely; the UK, EU and Canada each run their own regimes with their own protected grounds.
Two practical tests, which is roughly how investigators think:
- Does the answer change what I can do at work? If not, it has no business being asked.
- Would they ask this of every candidate? Questions applied selectively are the ones that leave a trail.
There is a legitimate version of almost every risky question. "Are you a US citizen?" is fraught. "Are you legally authorised to work in the United States, now and in the future?" is standard and fine. Same information need, different reach.
The innocent-sounding questions that cross the line
Most bad questions in real interviews are not hostile. They are small talk that wandered. That is exactly what makes them hard to handle — the person asking usually has no idea they stepped in it.
The recurring offenders:
- "Where are you from originally?" — national origin, dressed as curiosity about your accent or your surname.
- "When did you graduate?" — age, by arithmetic. So is "how long have you been doing this?" and "are you comfortable reporting to someone younger?"
- "Do you have kids?" / "Any plans to start a family?" — sex and pregnancy, and almost always asked of women.
- "What does your spouse do?" — marital status, and in many states a protected one.
- "Is that a church thing?" after you mention a weekend commitment — religion.
- "How's your health?" or "Have you ever filed a workers' comp claim?" — disability. Employers may ask whether you can perform the essential functions of the job, with or without reasonable accommodation. They may not go fishing for a diagnosis.
- "What did you make at your last job?" — legal in some places, banned in others. Either way you can decline and pivot to your target range.
Illegal question or illegal decision — know the difference
An interviewer asking about your kids is not, on its own, a lawsuit. The violation is the decision made because of the answer. The question matters because it becomes evidence that a protected characteristic entered the room.
That reframe changes what you should do. You are not policing the interviewer. You are deciding two things in real time: how much you want to reveal, and whether this is a place you want to work.
Ask yourself which risk is bigger — the risk that answering hurts you, or the risk that refusing marks you as difficult. There is no universally correct answer. There is only your answer, for this job, with this employer.
A stray question from a nervous hiring manager who talks too much is different from a pattern of them across a panel. One is sloppiness. The other tells you something about the culture, and you get to act on it.
Three ways to respond, and what each costs you
You have three moves: answer it, redirect it, or decline it. All three are legitimate. They trade off differently.
| What they asked | Why it's a problem | What you can say out loud |
|---|---|---|
| "Where are you from originally?" | Probes national origin | "I've been in Chicago for six years. Is there a travel or location requirement I should know about?" |
| "When did you graduate?" | Proxy for age | "I've got about nine years in this space — happy to walk through the most relevant stretch." |
| "Do you have kids?" | Probes sex and family status | "Nothing outside work affects my availability. What does coverage look like on this team?" |
| "Any health issues we should know about?" | Probes disability | "I can perform every function in the job description. Which of them is most demanding day to day?" |
| "What's your current salary?" | Banned in many jurisdictions | "I'd rather anchor on the role. I'm targeting the 95–110 range — where does this band sit?" |
Answering is fastest and keeps rapport intact, but you cannot un-reveal it. Redirecting is the workhorse: name the underlying job concern and answer that. It reads as competence, not evasion, and it usually resolves the moment. Declining — "I'd rather keep the focus on the role, if that's alright" — is your right and sometimes the only honest option, though with an inexperienced interviewer it can go stiff.
Whichever you pick, keep your tone level and warm. The words carry less than the delivery. Our guide to common interview questions and how to handle them covers the same principle for ordinary questions: answer the concern behind the question, not just the words.
What to do afterwards if you think it affected the outcome
Write it down the same day: date, who said it, the exact wording, who else was present, and how you replied. Contemporaneous notes are worth far more than a reconstruction three months later. Keep the job posting, your emails and any recruiter messages.
Then decide what you actually want. Options, roughly in order of escalation:
- Nothing. A legitimate choice. Not every clumsy question deserves your next six months.
- Raise it with the recruiter or HR. Often the fastest fix, and some companies genuinely want to know.
- File a charge with the EEOC or your state's fair-employment agency. Deadlines are short — commonly 180 days, extended to 300 where a state agency exists — so check them early.
- Talk to an employment lawyer. Many offer free consultations and can tell you in twenty minutes whether you have anything.
If you decided the culture was the real signal, close the loop cleanly anyway. A short post-interview thank-you email costs nothing and keeps the door open on your terms.
Frequently asked questions
Are illegal interview questions actually illegal to ask?
Mostly no, at the federal level. Asking is generally not itself unlawful — the violation is making a hiring decision based on a protected characteristic. Some specific questions are separately restricted by state or local law, salary history being the common example.
Can I refuse to answer and still get the job?
Yes, and it happens routinely. A calm redirect to the job-related concern almost always defuses it, because most interviewers were making conversation rather than screening you. If a polite decline ends your candidacy, the decision told you more than the question did.
Is asking about salary history illegal everywhere?
No. A number of US states and cities ban it, and others do not, so it depends on where you and the employer are. Either way you can decline to share it and give a target range instead — see our walkthrough on answering salary expectations.
Should I report an interviewer who asked something inappropriate?
Only you can weigh that. Document it either way, then choose between letting it go, raising it with HR, contacting the EEOC or your state agency, or consulting an employment lawyer. Filing deadlines are short, so decide sooner rather than later.
Handling illegal interview questions well is not about memorising statutes. It is knowing the protected categories, hearing the job concern buried under the question, and having a redirect ready so you are not improvising under pressure. If you want that same steadiness across the whole process — positioning, resume, interview, offer — Land the Offer with AI walks it end to end, with the rule that everything you say must survive the room you say it in.