What Employers Can and Can't Ask You in an Interview
Someone asks how old you are. Or whether you're planning to have kids. Or what church you go to.
The question lands wrong and stays with you the rest of the day. Later you look it up and find a hundred articles telling you it was an illegal interview question. That's not quite how it works, and the difference is worth knowing.
Here's the short version. One category of question is genuinely barred before a job offer, and it's anything about disability or your medical history. Most of the rest are legal to ask. What makes them a problem is what happens next.
So was that question illegal?
Federal equal opportunity laws don't clearly forbid employers from asking questions that touch on race, color, sex, national origin, religion, or age. There's no list of banned words and no penalty attached to the question by itself.
What the law does is treat the question as evidence. EEOC's guidance says these inquiries may be used as proof that an employer intended to discriminate, unless the question can be justified by a business purpose. So asking doesn't get an employer in trouble. Asking and then turning you down might.
That's why EEOC tells employers to keep hiring questions limited to what's needed to work out whether someone can do the job, and treats race, sex, national origin, age, and religion as irrelevant to that.
What employers can't ask before an offer
Disability and medical questions work differently, because a regulation covers them directly. Before an offer, it is unlawful for a covered employer to conduct a medical examination of an applicant or to ask whether an applicant has a disability, or about the nature or severity of one.
EEOC's stated reason is plain enough. This information used to get people screened out before anyone assessed whether they could do the work.
What an employer can do at that stage is ask about your ability to perform job-related functions, and ask you to describe or demonstrate how you'd do them, with or without accommodation. That's a fair question and one worth being ready for.
After a conditional offer, this opens up. An employer can require a medical examination between the offer and your start date, and can make the offer conditional on the results, as long as everyone entering that same job category goes through it regardless of disability. That last part matters. A medical exam only you were asked to take is a different situation from one everyone takes.
The questions employers are told to avoid
None of these are banned outright. They're the ones EEOC tells employers to stay away from, because the answers say nothing about whether you can do the job.
Family and pregnancy. EEOC names these specifically: whether you're pregnant, your marital status or plans to marry, the number and ages of your children, future childbearing plans, child care arrangements, your spouse's job, and your spouse's name.
The guidance notes these questions have long been used to limit opportunities for women, and that asking them of one sex and not the other is clearly discriminatory.
The same guidance covers medical history of pregnancy, ability to reproduce, and birth control. Some of this can legitimately come up once you've accepted an offer, where it's needed for insurance or another real business reason.
Religion. Questions about religious affiliation or belief are generally treated as not job-related unless religion is a bona fide occupational qualification. EEOC tells employers to avoid asking where you worship, which days you worship, and which holidays you observe, and not to ask for references from a minister, rabbi, priest, imam, or pastor.
Religious organizations have an exemption, and it's narrower than people assume. It covers hiring on the basis of religion only, and doesn't reach race, sex, national origin, disability, color, or age.
Anything that reveals something sideways. EEOC advises employers not to ask which organizations, clubs, societies, or lodges you belong to, or anything else that would indicate race, sex, national origin, disability status, age, religion, color, or ancestry.
Requesting a photograph falls in the same bucket. If one's needed to identify you, it can wait until an offer has been made and accepted. On age specifically, federal protection starts at 40.
Where the line actually falls
It's the decision, not the question.
An interviewer who asks about your kids and then hires you hasn't done anything the law reaches. The same question followed by a rejection is what EEOC would look at, and the question becomes part of the picture.
If you think a hiring decision came down to something it shouldn't have, EEOC accepts charges of discrimination. The deadline is generally 180 calendar days from the day the discrimination took place, and stretches to 300 where a state or local agency enforces a law covering the same thing. EEOC's field offices can tell you which applies to you.
(Important: This article is general information about federal employment law and is not legal advice. State and local laws vary, and many offer protection beyond what's described here. For advice about your own situation, talk to a qualified employment attorney.)
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Sources & References
U.S. Equal Employment Opportunity Commission. (n.d.). Prohibited employment policies/practices. https://www.eeoc.gov/prohibited-employment-policiespractices
U.S. Equal Employment Opportunity Commission. (n.d.). Pre-employment inquiries and disability. https://www.eeoc.gov/pre-employment-inquiries-and-disability
U.S. Equal Employment Opportunity Commission. (n.d.). Pre-employment inquiries and marital status or number of children. https://www.eeoc.gov/pre-employment-inquiries-and-marital-status-or-number-children
U.S. Equal Employment Opportunity Commission. (n.d.). Pre-employment inquiries and gender. https://www.eeoc.gov/pre-employment-inquiries-and-gender
U.S. Equal Employment Opportunity Commission. (n.d.). Pre-employment inquiries and religious affiliation or beliefs. https://www.eeoc.gov/pre-employment-inquiries-and-religious-affiliation-or-beliefs
U.S. Equal Employment Opportunity Commission. (n.d.). Time limits for filing a charge. https://www.eeoc.gov/time-limits-filing-charge
Prohibited medical examinations and inquiries, 29 C.F.R. § 1630.13 (2026). https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XIV/part-1630/section-1630.13
Medical examinations and inquiries specifically permitted, 29 C.F.R. § 1630.14 (2026). https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XIV/part-1630/section-1630.14
