In most cases, yes — your employer can tell you when to take vacation. Federal law does not require private employers to offer paid vacation, so the ones that do generally get to set the rules on timing: approving or denying requests, imposing blackout periods, and even requiring you to use vacation days during a company shutdown. The limits come from a handful of specific protections: anti-discrimination law, the FMLA, religious accommodation rules, USERRA for military service, union contracts, and some state statutes.
Why Your Employer Has This Much Say
The Fair Labor Standards Act does not require employers to pay for time not worked. The Department of Labor treats vacation as a “matter of agreement between an employer and an employee.”1U.S. Department of Labor. Vacations Because the benefit is voluntary, the employer offering it gets to shape how it works — minimum notice periods, caps on how many people are off at once, restrictions during busy seasons, and whether requests go by seniority or first-come-first-served.
The floor under all of it is anti-discrimination law. Title VII of the Civil Rights Act bars discrimination in the “terms, conditions, or privileges of employment,” and courts read that to cover vacation scheduling.2U.S. Equal Employment Opportunity Commission. Title VII of the Civil Rights Act of 1964 Approving one worker’s holiday week while denying an identical request from a coworker of a different race, sex, religion, or national origin, without a legitimate business reason, is the kind of pattern that supports a discrimination claim.
When Your Employer Can Require You to Use Vacation Days
Two situations come up most often.
Company Shutdowns and Slow Periods
If your workplace closes for a week around the holidays or shuts a production line, your employer can require you to use accrued vacation to cover it. The Department of Labor confirmed this in a formal opinion letter: because the FLSA doesn’t require vacation in the first place, nothing stops an employer from directing when accrued days get used.3U.S. Department of Labor. Opinion Letter FLSA2005-41
Salaried exempt employees get one extra protection. If your vacation balance is empty, your employer still owes you your full salary for any closure it initiates. Docking an exempt employee’s pay for a shutdown the business chose would break the salary basis test that supports the overtime exemption.4U.S. Department of Labor. Fact Sheet 17G – Salary Basis Requirement and the Part 541 Exemptions Under the Fair Labor Standards Act
FMLA Leave
Your employer can also require you to run accrued vacation concurrently with unpaid FMLA leave. Federal regulations spell it out: if you don’t volunteer to use paid time, your employer can require you to.5eCFR. 29 CFR 825.207 – Substitution of Paid Leave You get paid during the absence, but the days come off your vacation balance. Your FMLA job protections stay the same whether the leave is paid or unpaid.
Blackout Periods and Denied Requests
Blackout periods are stretches when your employer blocks most vacation requests: late November through December at retailers, tax season at accounting firms, flu season at hospitals. No federal law prohibits them, and your employer doesn’t need to justify one beyond general business need.
A denied request isn’t automatically a legal problem, even when you followed every rule. Your employer can turn down a properly submitted request based on staffing, project deadlines, or workload. The protection isn’t against denial; it’s against inconsistent or discriminatory denial. If similar coworkers routinely get approved for the same kinds of requests while yours are rejected, and the pattern lines up with a protected characteristic, that’s worth raising.
Protections That Override Your Employer’s Preference
Three federal laws can override scheduling decisions even during a blackout period or staffing crunch.
FMLA Leave
If you’ve worked for your employer for at least 12 months, logged at least 1,250 hours in the past year, and work at a location with 50 or more employees within 75 miles, you’re entitled to up to 12 weeks of unpaid, job-protected leave per year for qualifying family and medical reasons.6U.S. Department of Labor. Family and Medical Leave A blackout period is not a lawful reason to deny qualifying FMLA leave. The FMLA has no general “undue hardship” defense; if you meet the eligibility rules and have a qualifying reason, the leave is yours. You’re still expected to follow normal procedures — forms, advance notice — when the need is foreseeable.7U.S. Department of Labor. The Employees Guide to the Family and Medical Leave Act
Religious Observances
Title VII requires employers to make reasonable schedule adjustments for sincerely held religious practices unless doing so would impose an undue hardship. Typical accommodations include schedule swaps, flexible start times, and excused absences for religious holidays.8U.S. Equal Employment Opportunity Commission. Fact Sheet – Religious Accommodations in the Workplace
The bar for undue hardship is higher than it used to be. In its 2023 decision in Groff v. DeJoy, the Supreme Court rejected the longstanding rule that employers only needed to show a minor cost. The Court held that an employer must show the accommodation would result in “substantial increased costs in relation to the conduct of its particular business.”9Supreme Court of the United States. Groff v. DeJoy, 600 U.S. 447 (2023) Pointing at a blackout period and refusing to talk about alternatives doesn’t clear that bar.
Military Service Under USERRA
If you’re called to uniformed service, USERRA lets you use accrued vacation during your service period if you want to. That choice is yours alone — your employer cannot force you to burn vacation days while you’re on military duty.10Office of the Law Revision Counsel. 38 U.S. Code 4316 – Rights, Benefits, and Obligations of Persons Absent From Employment for Service in a Uniformed Service The one exception is if your military absence overlaps with a period, like a plant shutdown, when every employee is required to take vacation.11U.S. Department of Labor. USERRA Advisor – Vacation Accruals
Union Contracts Change the Picture
If a collective bargaining agreement covers your job, your vacation rights are usually more detailed than what non-union workers get. Vacation is a mandatory subject of bargaining under the National Labor Relations Act because it falls within “wages, hours, and other terms and conditions of employment.”12National Labor Relations Board. National Labor Relations Act Your employer has to negotiate vacation policies with your union and cannot change them unilaterally while the contract is in force.13National Labor Relations Board. Collective Bargaining Rights
Seniority often controls when you get to take time off. Many contracts use a bidding process where longer-tenured workers pick their preferred weeks first, so popular dates like summer weeks and holidays tilt toward senior employees.14U.S. Equal Employment Opportunity Commission. CM-616 Seniority Systems If your employer violates the vacation terms of the contract, you file a grievance under the contract’s dispute process. Watch the deadline — grievance windows are often 30 days or less from when you learn of the violation.
Can Your Employer Cancel Vacation It Already Approved?
Usually, yes. No federal law treats an approved vacation request as a binding contract. If a staffing crisis hits or a project timeline slips, your employer can pull back approval that was already granted. Some will reimburse non-refundable travel costs; most don’t have to.
The exception is retaliation. If you recently filed a discrimination complaint, reported a safety violation, or did something else legally protected, and your employer suddenly cancels your approved vacation, the timing can support a retaliation claim. The EEOC treats revoking benefits like approved time off as a materially adverse action.15U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Retaliation and Related Issues
Union workers should check the contract. Some CBAs require the employer to show real operational necessity before pulling back approved leave, and some require compensation if approval is rescinded close to the planned dates.
State Laws Worth Checking
The federal government stays out of vacation policy, but states don’t. Roughly a dozen treat accrued vacation as earned wages, so your employer has to pay out the unused balance when you leave. A smaller group bans “use-it-or-lose-it” policies outright, meaning the vacation you earn stays yours (employers can cap total accrual, but can’t wipe out what you’ve already banked). In the remaining states, forfeiture is generally allowed if the policy is in writing and communicated before it takes effect.
A few states have added general-purpose paid leave on top of anything your employer offers voluntarily. Illinois, Maine, and Nevada each require up to 40 hours per year of paid leave employees can use for any reason, accruing at roughly one hour for every 40 hours worked. Check your state labor department’s site if you’re not sure how the local rules apply to your situation.
What to Do If a Denial Feels Wrong
Start with the written policy. Pull the employee handbook, your offer letter, or any document that spells out your employer’s vacation rules. If the denial contradicts what’s in writing — the policy promises first-come-first-served and you submitted first — raise the inconsistency with HR in writing. Most vacation disputes are policy-application problems, not legal violations, and a clear paper trail resolves them.
If you believe the denial is discriminatory, you can file a charge with the EEOC. That applies when your requests are repeatedly rejected while coworkers in a different protected group are approved under the same circumstances.16U.S. Equal Employment Opportunity Commission. Filing a Charge of Discrimination Union workers should use the grievance process in the CBA, and file quickly given the short deadlines.
Whichever route fits, save copies: your vacation requests, any approvals or denials, the reasons your employer gave, and the published policy. FMLA-covered employers are required to keep leave policies and hours records for at least three years.17eCFR. 29 CFR 825.500 – Recordkeeping Requirements If a dispute escalates, those records do most of the work.