The question of whether an employer can deny a time-off request is a common source of confusion for many employees. In the United States, there is no federal law requiring employers to provide paid vacation time, meaning that paid time off is generally considered a benefit offered at the company’s discretion. The answer to the denial question depends on the specific type of leave requested, the reason for the absence, and the laws of the state or local jurisdiction where the employee works. Understanding the distinction between voluntary time off and legally protected leave is the first step toward knowing your rights.
Understanding the General Rule: Employer Discretion
Most time off, such as requests for a vacation or a personal day, falls under the category of discretionary leave, which is not protected by federal or state law. For these requests, employers generally retain the right to approve or deny the time off based on their business needs. The fundamental concept of “at-will” employment, which is the prevailing rule in most states, means that an employer or employee can terminate the relationship at any time and for almost any reason, provided it is not an illegal one.
This principle extends to scheduling, allowing employers to manage staffing efficiently. Unless an employment contract or a union agreement states otherwise, a request for a vacation day is viewed as a privilege granted by the employer, not an inherent right. Employers must apply their time-off policies consistently and fairly, ensuring that a denial is based on legitimate business reasons and is not discriminatory or retaliatory against a specific employee.
When the Refusal May Be Illegal: Legally Protected Leave
An employer’s discretion is overridden when an employee requests leave for a reason protected by law. Federal statutes mandate that employers must grant time off for specific circumstances, and denying these requests can be illegal. The Family and Medical Leave Act (FMLA) requires covered employers to provide eligible employees up to 12 weeks of unpaid, job-protected leave for reasons like the birth or adoption of a child, or a serious health condition affecting the employee or a family member.
The Americans with Disabilities Act (ADA) requires employers to provide reasonable accommodations to employees with disabilities, which can include time off for medical treatment or recovery, unless it causes an undue hardship to the business. Other mandatory leaves include time off for jury duty, military service leave protected by the Uniformed Services Employment and Reemployment Rights Act (USERRA), and, in some jurisdictions, time off to vote. For these mandatory leaves, the employer must follow the specific guidelines and eligibility requirements set by the law.
The Role of Company Policy and Contractual PTO
Beyond legally mandated time off, an employee’s rights often come from the employer’s own policies and contractual agreements. Paid Time Off (PTO), vacation banks, and personal days are considered employer-granted benefits, which are defined by the company’s handbook or an individual employment contract. The policy will detail how PTO is earned, typically through an accrual system where employees gain hours based on time worked or per pay period.
These documents also outline rules concerning carryover limits and whether a “use-it-or-lose-it” policy is enforced, potentially requiring employees to forfeit unused time at the end of the year. Some states treat accrued vacation time as earned wages, which may require the employer to pay out the unused balance upon separation. While an employer may legally deny the timing of a non-statutory PTO request due to business needs, the right to the accrued time itself is governed by the specific terms of the company’s written policy.
Handling Sick Leave and Medical Appointments
Time off for illness or routine medical care is treated differently than general vacation time, particularly due to the growing number of state and local paid sick leave mandates. Although federal law does not require paid sick leave, over 20 states and numerous municipalities have enacted laws requiring employers to provide a minimum amount of paid sick time that can be used for the employee’s or a family member’s illness or preventative care. These laws often require employees to accrue leave and specify the allowable uses for the time.
For a minor illness or a routine appointment that does not qualify for FMLA or ADA protection, the employer’s denial is measured against local laws or the company’s own sick leave benefit policy. An employer may request medical documentation, such as a doctor’s note, to verify the need for the absence, but only if that requirement is clearly stated in company policy and applied consistently to all employees. Denying sick leave mandated by law or company policy can expose the employer to penalties and legal risk.
Valid Business Reasons for Denying Time Off
For non-protected leave, an employer’s denial is considered valid when it is based on genuine business need. The most common reason for a denial is a staffing shortage, such as when multiple employees request the same dates, leaving inadequate coverage for a shift or department. Requests submitted during known peak business seasons, like a retailer’s holiday rush or an accountant’s tax season, are also frequently denied through established “blackout periods.”
A denial is also justifiable if the employee has a history of excessive or poorly scheduled prior absences, or if the request conflicts with a project deadline. The denial must be applied neutrally, meaning the employer cannot deny one employee’s request for a specific date while approving a similar request from a co-worker unless a clear, non-discriminatory policy—like seniority—is consistently followed. The denial must protect the business from genuine operational harm, not simply punish or inconvenience the employee.
Steps to Take After Your Request is Denied
When a time-off request is denied, the employee should review the company’s official handbook or PTO policy to understand the specific rules cited for the refusal. Documenting all communications, including the original request, the denial, and the stated reason, is important. The employee should then attempt to negotiate alternative dates that better align with the employer’s business needs, demonstrating a willingness to compromise.
Escalating the Denial
If the denial seems inconsistent with policy or arbitrary, the employee can formally escalate the matter to Human Resources, presenting the facts and requesting a review of the decision.
Pursuing Legal Action
If the employee suspects the denial is retaliatory—perhaps following a complaint about workplace conditions—or discriminatory, based on a protected characteristic such as race, gender, or a known disability, the situation requires more serious action. In these cases, the employee should seek counsel from a labor attorney or consider filing a complaint with the relevant federal agency, such as the Equal Employment Opportunity Commission (EEOC), which investigates claims of workplace discrimination.

