The Family and Medical Leave Act, known as the FMLA, is a federal law that lets eligible employees take up to 12 workweeks of unpaid, job-protected leave in a 12-month period for serious medical and family reasons. While you’re out, your employer must hold your job (or an equivalent one) and keep your group health insurance active on the same terms as before. The law reaches most public employers and private companies with at least 50 workers, and it covers situations like recovering from surgery, caring for a parent with cancer, or bonding with a new child.
Who Qualifies
FMLA has two gates: your employer has to be covered, and you have to be eligible.
Private companies are covered only if they employed at least 50 people during 20 or more workweeks in the current or previous calendar year. Public agencies at every level of government are covered no matter how few people they employ, and the same rule applies to public and private elementary and secondary schools. Most very small businesses fall outside the law, but the majority of American workers are inside it.
Even at a covered employer, you personally have to meet three tests. You must have worked for the employer for at least 12 months, which don’t have to be consecutive. You must have logged at least 1,250 hours of actual work during the 12 months right before the leave starts. And you must work at a location where the company employs 50 or more people within a 75-mile radius. The 1,250-hour count is based on time actually worked, so paid holidays, vacation, and sick time you used don’t count. That comes out to roughly 24 hours a week over a year.
Reasons You Can Take FMLA Leave
The statute lists specific situations that qualify:
- Birth or placement of a child. Time to bond with a newborn or a child newly placed with you through adoption or foster care. This leave must be used within one year of the birth or placement.
- Caring for a seriously ill family member. A spouse, child, or parent with a serious health condition. Siblings, grandparents, and in-laws are not covered unless they stood in the role of a parent to you.
- Your own serious health condition. A medical issue that makes you unable to do your job.
- Military-related needs. Urgent matters arising from a family member’s active-duty deployment, such as arranging childcare or attending military briefings.
The “parent” category is broader than most people expect. Under the FMLA’s in loco parentis standard, a parent includes anyone who had day-to-day responsibility for caring for or financially supporting you when you were a child. There’s no requirement of a biological or legal tie, and more than one person can qualify. A stepparent, grandparent, or other adult who raised you counts, even if a biological parent was also in the household.
What Counts as a Serious Health Condition
This is where a lot of FMLA claims turn. A “serious health condition” isn’t just any illness. The most common route to qualifying is the informal three-day rule: you must be unable to work, attend school, or perform other daily activities for more than three consecutive full calendar days, and you must receive continuing treatment from a health care provider.
Continuing treatment means either two or more in-person provider visits within 30 days of the first day you were unable to function (with the first visit within seven days), or at least one visit that leads to an ongoing treatment plan such as prescription medication or physical therapy.
Several other categories qualify without the three-day requirement:
- Pregnancy and prenatal care. Any period of incapacity related to pregnancy qualifies, with no minimum duration.
- Chronic conditions. Ongoing conditions like asthma, diabetes, or epilepsy that require periodic treatment (at least twice a year) and cause recurring episodes of incapacity.
- Permanent or long-term conditions. Conditions like Alzheimer’s disease or a severe stroke where the person is under continuing medical supervision, even if active treatment isn’t effective.
- Conditions requiring multiple treatments. Situations like chemotherapy, dialysis, or recovery from surgery that demand a series of treatment sessions.
A common cold or routine flu won’t qualify unless complications push you past those thresholds. Employers do deny leave when the medical certification doesn’t line up with these categories, so the specifics matter.
How Much Leave You Get
The standard entitlement is 12 workweeks in a 12-month period. Military caregiver leave is larger: up to 26 workweeks in a single 12-month period for an eligible employee who is the spouse, child, parent, or next of kin of a covered servicemember with a serious injury or illness. During that same 12-month window, the 26-week cap includes any leave taken for other qualifying reasons, so you don’t get 12 weeks plus 26 weeks stacked together.
You don’t have to take the full 12 weeks in one stretch. When leave is needed for a serious health condition, you can take it intermittently, a few days or even a few hours at a time, or on a reduced schedule. This is common for chemotherapy sessions or flare-ups of a chronic condition. If the intermittent leave is for planned medical treatment, you should make a reasonable effort to schedule appointments so they don’t unnecessarily disrupt your employer’s operations.
Employers must track intermittent leave in increments no larger than one hour. If your employer already tracks other leave in smaller increments (say, 15 minutes for sick time), they must use that same increment for FMLA. Your leave balance can only be reduced by the amount of time you actually miss; an employer can’t round up or dock you for a full day when you took two hours.
Bonding leave for a new child works differently. Employers can require you to take it in continuous blocks rather than scattered days, unless both sides agree to a flexible arrangement.
Pay: FMLA Is Unpaid, but Paid Leave Can Run With It
FMLA leave is unpaid by default. The law protects your job and your health insurance; it doesn’t require your employer to pay you while you’re out.
You can choose to use your accrued paid leave (vacation, sick time, or PTO) during FMLA leave, and your employer can also require you to do so. When paid leave runs concurrently with FMLA, both clocks tick together. You don’t get your 12 FMLA weeks plus your paid leave on top. You still have to follow the employer’s normal procedures for requesting paid leave.
These substitution rules don’t apply when you’re already receiving pay from another source. If you’re collecting workers’ compensation or benefits from a state or local paid family leave program, your employer generally cannot force you to burn through accrued paid leave at the same time. You and your employer can agree to “top off” those benefits with paid leave to bring your income closer to your full salary, but that has to be mutual.
More than a dozen states and the District of Columbia have their own paid family and medical leave programs funded through payroll contributions. These typically provide partial wage replacement during qualifying leave, and they usually run at the same time as federal FMLA, giving you both income and job protection. Eligibility and benefit amounts vary, so check with your state’s labor department.
Your Job and Health Insurance While You’re Out
Job protection is the core of the FMLA. When you return, your employer must put you back in your original position or an equivalent one with the same pay, benefits, and working conditions. “Equivalent” means genuinely comparable: same shift, same duties, same location or one close by. An employer can’t demote you, cut your pay, or move you into a lesser role because you took leave.
Throughout your leave, your employer must maintain your group health insurance on the same terms as if you’d never left. If your employer normally covers 80% of the premium, that continues. You’re still responsible for your share, and your employer should set up a payment arrangement with you before the leave begins so coverage doesn’t lapse.
One narrow exception exists. If you’re a salaried employee in the highest-paid 10% of all workers within 75 miles of your worksite, your employer can classify you as a “key employee” and deny reinstatement, but only if returning you to your job would cause “substantial and grievous economic injury” to the business. That’s a high bar, and routine inconvenience or the cost of a temporary replacement won’t meet it. The employer also has to give you specific written notices, and skipping those notices costs them the right to deny reinstatement.
How to Request Leave
When you know in advance that you’ll need leave, like a scheduled surgery or an expected due date, you must give your employer at least 30 days’ notice. For unexpected needs such as an emergency hospitalization, notify your employer as soon as you reasonably can.
Your employer will likely ask for a medical certification from your health care provider, covering the approximate start date of the condition, its expected duration, and whether you need continuous or intermittent leave. If your employer doubts the certification, they can require a second opinion at their expense, and a binding third opinion if the first two disagree.
Once you notify your employer of a need for leave, they have five business days to send you an eligibility notice telling you whether you qualify, and if not, why. After receiving your medical certification, they have another five business days to issue a designation notice confirming whether the absence will count as FMLA leave. These deadlines matter. Employers who miss them can lose the ability to challenge the leave later, so if you never received either notice and your employer later claims your absence wasn’t protected, that’s worth raising.
If Your Employer Violates the Law
FMLA violations fall into two categories. Interference is when an employer blocks leave you’re entitled to: refusing a valid request, discouraging you from applying, or manipulating your hours to keep you under the eligibility threshold. Retaliation is when an employer punishes you for using FMLA leave: firing you, demoting you, passing you over for promotion, or counting protected absences against you under an attendance policy.
You can file a complaint with the Department of Labor’s Wage and Hour Division at 1-866-487-9243. Complaints are confidential, and your employer is prohibited from retaliating against you for filing one or cooperating with an investigation.
You can also file a private lawsuit. The statute of limitations is two years from the date of the last violation, or three years if the violation was willful. A successful case can recover lost wages and benefits, actual monetary losses (such as the cost of paying for your own care), an equal amount in liquidated damages, and attorney’s fees. Courts can also order reinstatement or promotion. The liquidated damages provision effectively doubles the recovery in most cases, which gives the law real teeth.