Sometimes, but not always. There is no general federal right to take unpaid time off whenever you want it. Federal law guarantees unpaid leave only in specific situations - most commonly serious health conditions and family caregiving under the Family and Medical Leave Act (FMLA), disability-related leave under the Americans with Disabilities Act (ADA), and certain pregnancy, religious, and military situations. Outside those protected categories, unpaid leave is usually discretionary, meaning your employer can grant it, deny it, or condition it on their own policies.
Understanding which bucket your situation falls into is the key to knowing your rights. Below we walk through the federal baseline, where state law commonly adds stronger protections, and the practical steps to take.
The federal baseline: when unpaid leave is protected
A handful of federal laws create enforceable rights to unpaid leave. If your reason for needing time off fits one of these, an employer generally cannot simply refuse.
FMLA: serious health conditions and family caregiving
The Family and Medical Leave Act (FMLA), enforced by the U.S. Department of Labor's Wage and Hour Division, is the main federal source of unpaid leave. Eligible employees can take up to 12 weeks of unpaid, job-protected leave in a 12-month period for:
- Your own serious health condition that prevents you from doing your job
- Caring for a spouse, child, or parent with a serious health condition
- The birth of a child and bonding, or placement of a child through adoption or foster care
- Certain situations arising from a family member's military service (and up to 26 weeks to care for a covered servicemember with a serious injury or illness)
FMLA does not cover everyone. You generally must work for a covered employer (private employers with 50 or more employees within 75 miles, plus public agencies and schools), have worked there at least 12 months, and have logged at least 1,250 hours in the past year. When FMLA applies, your employer must continue your group health insurance on the same terms and restore you to the same or an equivalent job when you return.
FMLA leave is unpaid by default, though your employer may require - or you may choose - to use accrued paid time off concurrently. Importantly, many states have their own family and medical leave or paid family leave laws that cover smaller employers, offer longer leave, or provide wage replacement. This varies by state, so check your state labor department's rules even if you do not qualify federally.
ADA: leave as a disability accommodation
Under the Americans with Disabilities Act (ADA), enforced by the Equal Employment Opportunity Commission (EEOC), unpaid leave can be a reasonable accommodation for a qualifying disability - even when FMLA does not apply or has been exhausted. The ADA applies to employers with 15 or more employees.
This is not unlimited. The employer and employee are expected to engage in an "interactive process" to find a workable accommodation, and the leave must not impose an undue hardship on the business. Indefinite leave with no expected return date is generally not required, but a defined period of additional unpaid leave often is. If you have a medical condition that substantially limits a major life activity, leave may be protected under the ADA regardless of company policy.
Pregnancy, childbirth, and related conditions
Several laws intersect here. Title VII of the Civil Rights Act (as amended by the Pregnancy Discrimination Act) requires employers to treat pregnancy-related limitations like other temporary disabilities. The newer Pregnant Workers Fairness Act (PWFA), also enforced by the EEOC, requires covered employers (15 or more employees) to provide reasonable accommodations for pregnancy, childbirth, and related medical conditions - which can include time off - unless it causes undue hardship. Many states add stronger pregnancy accommodation and leave protections.
Military service: USERRA
The Uniformed Services Employment and Reemployment Rights Act (USERRA) protects employees who need leave for military duty, including reservists and National Guard members. It applies to employers of all sizes and provides reemployment rights after service.
Religious observance: Title VII
Under Title VII, employers with 15 or more employees must reasonably accommodate sincerely held religious practices - which can include unpaid time off for religious observances - unless doing so imposes an undue hardship. The Supreme Court has clarified that undue hardship means a substantial burden, not a trivial cost.
When an employer CAN deny unpaid time off
If your reason does not fall under a protected category, the answer is often that your employer has wide discretion. The Fair Labor Standards Act (FLSA) - the core federal wage-and-hour law enforced by the Department of Labor - sets minimum wage and overtime rules but does not require employers to provide vacation, personal days, sick leave, or any general unpaid time off. There is no federal mandate for ordinary discretionary leave.
That means for routine requests - a personal trip, a non-emergency errand, or time off that exceeds your accrued PTO - an employer can lawfully say no, as long as the denial is not discriminatory or retaliatory. Discretionary leave is governed by your employer's policies, your handbook, and any union contract.