Hiring Under the ADA: What You Can and Can’t Ask

Summary:

The ADA strictly limits when employers can ask medical questions during hiring. No inquiries are allowed before a conditional offer, and any post-offer medical exams must be consistent, job-related, and followed by an interactive process if issues arise. Vague questions and inconsistent screenings open the door to legal risk. 

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Hiring managers should be meticulous when scrutinizing résumés, checking references, and even decoding the tone in a cover letter. However, once a candidate walks through the door, curiosity has limits. Especially when it comes to health.

The Americans with Disabilities Act (ADA) draws a hard line in the hiring process: what you ask, when you ask it, and how you use the answers. Employers who cross that line risk bad optics and litigation.

Before the Offer, Stay Silent on Medical Topics

No medical questions before a conditional offer. Period.

The rule applies to written forms, off-the-cuff interview questions, and personality tests that might reveal a disability. If a candidate shows up in a wheelchair, you can’t ask why. If they mention a prior surgery in passing, you don’t follow up. Curiosity here is not just unhelpful—it’s illegal.

The Equal Employment Opportunity Commission (EEOC) has flagged common missteps: asking about previous injuries, sick leave history, or whether someone has filed for workers’ compensation. Even well-meaning questions like “Is there anything that would prevent you from doing this job?” are off-limits if they lead toward medical disclosure.

If it’s not directly tied to the candidate’s qualifications or experience, it’s not yours to ask.

After the Offer, Testing is Allowed—with Conditions

Once a conditional job offer is made, the ADA allows medical exams, but with strings attached.

All candidates for the same role must be subject to the same evaluation process. You can’t test one candidate and not the other. These tests must be relevant to the job. A blanket health screening is less valuable and riskier than a focused assessment built around the actual demands of the position.

If a condition is flagged, that’s not an automatic disqualifier. Employers are required to compare any medical findings to the essential functions of the job and assess whether the individual could perform them with reasonable accommodations. This includes short-term limitations. If the candidate is expected to recover within weeks, consider a delayed start or temporary duty modification.

One critical note: employers can’t skip the interactive process. It’s not enough to collect results and make a decision behind closed doors. You need a conversation, a documented back-and-forth that evaluates options and demonstrates an effort to accommodate.

Make Pre-Employment Exams Work for You

Third-party clinics often run these exams, especially in physically demanding industries. But too many employers rely on generic checkups that tell them little and expose them to more risk.

Be specific. Provide clinics with job descriptions, physical requirements, and a clear scope. If the job involves lifting 50 pounds or climbing ladders, the exam should measure those abilities. Vague medical “clearances” won’t protect you if the hire goes sideways, or if a rejected candidate sues.

When limitations arise, don’t ghost the process. Follow through with documentation. If accommodations are rejected, explain why. If adjustments are made, record them. In litigation, silence reads as indifference. Records show intention.

Avoid the Common Misstep: Timing

Most ADA issues in hiring don’t come from discrimination; they come from poor timing.

Asking health-related questions too early or applying inconsistent standards after an offer exposes the company. Fixing this doesn’t require rewriting your hiring philosophy. It requires precision.

Before the offer, the focus is skills and qualifications. After the offer, assessments must be uniform, job-specific, and followed by a real conversation if concerns arise.

Build Hiring Practices That Hold Up Under Scrutiny

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