DocketX / Family and medical leave / Intermittent leave, explained

Intermittent leave, explained

You have a medical condition that does not keep you out of work all at once, but it flares up unpredictably or requires regular treatment that pulls you away in small chunks. Maybe it is a chronic illness, a therapy schedule, or a series of follow-up appointments. This situation can feel uncertain and frustrating because you are not gone for weeks straight, but you still need time off. Fortunately, there is a real, defined process under the law that is built exactly for this kind of intermittent leave.

The honest reality

The honest truth is that intermittent FMLA leave is not a free pass to take time off whenever you feel like it. You must follow your employer's normal call-in and notice procedures, and you may need medical certification that explains why the leave is medically necessary in small increments. Also, your employer can require you to try to schedule treatment or appointments at times that cause the least disruption to your work, as long as that is reasonable.

Leave doesn't have to be one continuous block

FMLA leave can be taken intermittently, in separate blocks of time for a single qualifying reason, or on a reduced schedule, working fewer hours for a period, when medically necessary, which matters most for chronic conditions, ongoing treatment, or recovery that doesn't require being out entirely. Your employer can require you to try to schedule foreseeable intermittent leave, like planned treatments, in a way that doesn't unduly disrupt operations, and can temporarily move you to an equivalent position with better-suited hours if the intermittent schedule requires it. Intermittent leave is where employers and employees disagree most often, about how much leave was actually used and whether it was properly tracked, so keeping your own written record of every instance is worth doing regardless of what your employer tracks.

Fired, demoted, or cut in hours around your leave

That is not an ordinary leave question anymore

Being punished for requesting or taking protected leave is a separate, serious problem from the leave process itself. Our three-question triage routes you to the free agency that actually handles retaliation, nothing you type there is sent or stored, and our employment guide covers wrongful termination and retaliation in depth.

You don't need a lawyer to start

Every step above is built for people without lawyers

A WHD complaint and a state agency complaint are both free and designed for workers to use directly. Read our pro se guide for how self-representation works generally, and if a lawyer's cost is the blocker at any stage, our can't-afford-a-lawyer triage covers every free and low-cost path, including legal aid.

Questions

Do I have to use all my leave in one block, or can I take it a few hours at a time?

You can take FMLA leave in separate blocks of time, even as small as an hour or less, as long as the leave is for a qualifying reason like ongoing treatment or a chronic condition. Your employer may have a policy on the smallest increment they will track, but they cannot force you to take a full day if you only need a few hours.

What if my condition flares up without warning? Can I still use intermittent FMLA for that?

Yes, if your condition is a chronic serious health condition that causes periodic flare ups, you can use intermittent FMLA for those unscheduled absences. You still need to follow your employer's usual call-in rules for unexpected absences, and you may need to provide medical certification that explains the unpredictable nature of your condition.

Will my employer count my intermittent leave against my total FMLA entitlement?

Yes, every hour or partial day you take as intermittent FMLA leave counts toward your total FMLA leave entitlement for the year. Your employer is required to track and notify you of how much leave you have used, so you can keep an eye on your remaining balance.

Not legal advice and not a law firm. We don't predict outcomes, and eligibility thresholds, leave lengths, and benefit amounts change and vary by employer, by state, and by program, never rely on a number from this page, confirm the current figures at dol.gov's own FMLA page or your state's agency. If you can get a lawyer or free legal aid, do: start at lsc.gov.