In most situations, an employer can require a doctor’s note to verify a medical absence. What they can ask, when they can ask, and what the note is allowed to say are all constrained by federal disability, medical leave, pregnancy, and genetic privacy laws, and often by state or local sick leave rules on top of that. Whether a specific request is legal depends on the reason for the absence, how long you were out, the size of your employer, and where you work.
Company Policy Is the Starting Point
When no specific law says otherwise, your employer’s own attendance policy controls. Most companies spell out the rule in an employee handbook. A common threshold is three or more consecutive days of absence, though some employers ask for a note after a single day. As long as the policy is written down and communicated in advance, your employer can enforce it as a condition of approving the absence or paying out sick leave.
The catch is consistency. An employer that enforces the rule selectively opens itself up to discrimination claims. If the handbook says a note is required after three days, that rule has to apply the same way to everyone in a similar situation. The EEOC has said that employees with disabilities must have access to sick leave on the same terms as anyone else, so singling out one person for a note because of a known disability can violate the ADA.1U.S. Equal Employment Opportunity Commission. Employer-Provided Leave and the Americans with Disabilities Act
Short Absences and State Sick Leave Laws
A growing number of states and cities have paid sick leave laws that cap when an employer can demand a doctor’s note for short absences. The most common pattern is a prohibition on requiring documentation unless the absence exceeds three consecutive workdays. Someone home with a cold for a day should not have to spend time and money at a doctor’s office just to prove they were sick.
The specifics vary. Some laws restrict the type of documentation an employer can require, and some allow verification from sources other than a physician, including a clinic or a pharmacist. If your state or city has a paid sick leave law, its protections apply on top of federal law and often set stronger limits on documentation demands. Checking the specific rule where you work is worth the effort before assuming a request is enforceable.
FMLA Medical Certification
The Family and Medical Leave Act allows eligible employees up to 12 weeks of unpaid, job-protected leave per year for a serious health condition, and it has its own documentation rules that go well beyond a standard doctor’s note.2U.S. Department of Labor. Family and Medical Leave (FMLA) FMLA only covers employees who work for an employer with at least 50 employees within 75 miles, have been employed for at least 12 months, and have worked at least 1,250 hours in that period.3U.S. Department of Labor. Fact Sheet 28 – The Family and Medical Leave Act
When you request FMLA leave, your employer can require a medical certification from your healthcare provider. The certification covers the nature of the condition, its expected duration, and whether you are unable to perform your job functions. Your employer must give you at least 15 calendar days to provide it, with more time available if your provider needs it.3U.S. Department of Labor. Fact Sheet 28 – The Family and Medical Leave Act
If your employer doubts the certification, it can require a second opinion from a different provider at the employer’s expense. That provider cannot be someone the employer regularly uses. If the two opinions conflict, a third provider agreed on by both sides gives a final and binding answer, again at the employer’s cost.4eCFR. 29 CFR 825.307 – Authentication and Clarification of Medical Certification; Second and Third Opinions Recertification is limited: generally no more than once every 30 days and only in connection with an actual absence, though the employer can always ask every six months regardless of the stated duration.5eCFR. 29 CFR 825.308 – Recertifications
One boundary employees often do not realize exists: your direct supervisor is never allowed to contact your healthcare provider about an FMLA certification. Only an HR professional, leave administrator, or other management official can make that contact, and only to verify the provider signed the form or to clarify unclear responses. They cannot ask for additional medical detail beyond what the form requests.4eCFR. 29 CFR 825.307 – Authentication and Clarification of Medical Certification; Second and Third Opinions
ADA Limits on Medical Inquiries
The Americans with Disabilities Act, which applies to employers with 15 or more employees, restricts when and how an employer can ask for medical information. Any medical inquiry has to be job-related and consistent with business necessity.6U.S. Equal Employment Opportunity Commission. Questions and Answers – Enforcement Guidance on Disability-Related Inquiries and Medical Examinations of Employees
If you ask for a reasonable accommodation because of a disability, your employer can request documentation to confirm the disability and understand your functional limitations, but only when the disability or need for accommodation is not obvious. The employer is entitled to know that you have a covered disability and that the accommodation is necessary. It cannot demand your complete medical records. Documentation should be limited to the nature, severity, and duration of the condition and why the specific accommodation is needed.7U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Disability-Related Inquiries and Medical Examinations of Employees under the ADA
Return-to-work exams follow the same principle. When you come back from medical leave, your employer can require a fitness-for-duty exam only if it has a reasonable belief, based on objective evidence, that your ability to do essential job functions is impaired or that you would pose a direct threat to safety. Even then, the exam must be limited to the condition that triggered the leave. Returning from knee surgery does not open the door to a full battery of unrelated medical tests.6U.S. Equal Employment Opportunity Commission. Questions and Answers – Enforcement Guidance on Disability-Related Inquiries and Medical Examinations of Employees
Pregnancy Accommodations Under the PWFA
The Pregnant Workers Fairness Act, which took effect in 2023 and covers employers with 15 or more employees, is more protective than the ADA when it comes to documentation.8U.S. Equal Employment Opportunity Commission. What You Should Know About the Pregnant Workers Fairness Act An employer is not required to seek documentation for pregnancy-related accommodations, and in several situations it is prohibited from doing so.
When the condition and the needed workplace change are obvious, the employer cannot ask for supporting documentation. An obviously pregnant employee asking for a different uniform size should not be sent to get a note. The same prohibition applies when the employee provides a simple self-confirmation and requests any of these common accommodations: carrying water and drinking as needed; extra restroom breaks; alternating between sitting and standing; breaks to eat and drink; and time and a place to pump at work or to nurse when the child is nearby.
When documentation is allowed, the employer can only ask for the minimum needed to confirm that the employee has a physical or mental condition related to pregnancy, childbirth, or a related medical condition and needs the requested change. The employer cannot require a specific form, cannot insist the documentation come from the treating provider, and cannot require the employee to be examined by a provider of the employer’s choosing.9eCFR. 29 CFR Part 1636 – Pregnant Workers Fairness Act
What the Note Can and Cannot Contain
Even when your employer is entitled to a note, there are hard limits on what it can say. A compliant note generally confirms three things: that you were seen by a healthcare provider, the dates of your absence, and any work restrictions such as no heavy lifting for two weeks. Your employer is not entitled to your specific diagnosis, your treatment plan, or your medical history.
Many employees think HIPAA blocks their employer from asking about health information at all. It does not. HIPAA’s Privacy Rule restricts what healthcare providers can share with your employer without your written authorization. Your employer can still ask you directly for a note, and your provider can release information if you sign off on it. What your provider cannot do is hand records to your employer behind your back.10U.S. Department of Health & Human Services (HHS). Employers and Health Information in the Workplace
Genetic information is off the table entirely. Under the Genetic Information Nondiscrimination Act, family medical history counts as genetic information, and it is unlawful for an employer to request, require, or purchase genetic information about you or your relatives.11U.S. Equal Employment Opportunity Commission. Genetic Information Nondiscrimination Act of 2008 Employers ordering fitness-for-duty or return-to-work exams have to instruct the provider not to include family medical history in the report.12U.S. Equal Employment Opportunity Commission. What You Should Know – Questions and Answers About Genetic Information
Telehealth notes are generally treated the same as in-person notes. The key factors are whether the provider is licensed in your state, whether they conducted a genuine clinical evaluation, and whether the note has verifiable contact information. Some employers still push back on telehealth documentation, but no federal law distinguishes between the two as long as the provider is properly licensed.
How Your Employer Must Handle the Note
Once your employer receives a note or medical certification, it cannot go into your regular personnel file. Federal law requires medical records obtained through the FMLA process to be kept as confidential medical records in separate files from standard personnel records.13eCFR. 29 CFR 825.500 – Recordkeeping Requirements The ADA imposes a similar confidentiality rule for any medical information about employees, whether the employee has a disability or not. Managers and supervisors can be told about work restrictions they need to accommodate, but the underlying medical details stay locked down.14U.S. Equal Employment Opportunity Commission. Disability Discrimination and Reasonable Accommodation – Medical Inquiries, Leave and Telework
Mixing medical documentation into general HR files, leaving certifications in a shared folder, or discussing the contents of a note with coworkers all create legal exposure for the employer. If you suspect your employer is mishandling your medical records, that is a legitimate basis for a complaint.
Who Pays for the Visit
Who pays depends on why the visit is happening. In the FMLA context, if the employer doubts your initial certification and demands a second or third opinion, the employer pays.4eCFR. 29 CFR 825.307 – Authentication and Clarification of Medical Certification; Second and Third Opinions
For routine doctor’s notes required by an attendance policy, federal law is less direct. The Fair Labor Standards Act says an employer-required expense, including the cost of a required physical examination, cannot reduce your pay below minimum wage.15U.S. Department of Labor. Fact Sheet 16 – Deductions From Wages for Uniforms and Other Facilities Under the Fair Labor Standards Act (FLSA) Many states go further and require employers to cover the full cost of any medical exam they mandate, though specifics vary. If you are near minimum wage and your employer requires a note for every absence, the cost is worth flagging to HR.
What Happens If You Refuse
If the request is legitimate under your employer’s policy and applicable law, refusing to provide a note can lead to real consequences. The absence may be marked unexcused, which can mean losing paid sick leave for those days and triggering disciplinary steps up to termination. In FMLA cases, failing to provide a complete medical certification after being given the chance to fix any deficiencies can result in denial of the leave altogether.
The analysis changes when the request itself is improper. If your employer demands a note for a one-day absence in a jurisdiction where sick leave law prohibits that, or demands your full medical history when a simple verification would do, you have grounds to push back. Federal law prohibits retaliation against employees who exercise their rights under the FMLA, including opposing practices they reasonably believe are unlawful.16U.S. Department of Labor. Fact Sheet 77B – Protection for Individuals under the FMLA The ADA offers similar protection for employees who request reasonable accommodations or object to improper medical inquiries.7U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Disability-Related Inquiries and Medical Examinations of Employees under the ADA
The hard part is knowing which side of the line you are on in the moment. Before refusing outright, the smarter move is usually to provide the minimum documentation required, note your objection in writing, and follow up through HR or a formal complaint channel. Refusing on principle when the request turns out to be lawful gives your employer a clean paper trail for discipline that is hard to fight later.