Intermittent FMLA leave lets an eligible employee use the 12-week annual entitlement under the Family and Medical Leave Act in separate blocks of time rather than all at once.1Office of the Law Revision Counsel. 29 USC 2612 – Leave Requirement Instead of three continuous months away from work, you might take a few hours every Tuesday for physical therapy, or miss occasional days when a chronic condition flares. The flexibility is real, and so are the rules that go with it.
Who Can Take Intermittent FMLA
Two things have to line up: you have to be an eligible employee, and your reason has to be one the regulation allows to be taken in pieces.
Eligibility has three parts, and missing any one of them puts you outside federal FMLA. You need at least 12 months with your current employer, though those months do not have to be consecutive; a break in service of seven years or more generally wipes out the earlier period. You need 1,250 hours of actual work in the 12 months right before leave begins, which averages to about 24 hours a week. And your employer must have at least 50 employees within 75 miles of your worksite, so a small satellite office can still be covered if the company has enough workers at other nearby locations.2eCFR. 29 CFR 825.110 – Eligible Employee
On the reason side, not every FMLA-qualifying event automatically supports an intermittent schedule. For health-related leave, the regulation requires that the medical need can best be met through intermittent or reduced-schedule leave rather than a continuous stretch, and your healthcare provider has to say so on the certification.3eCFR. 29 CFR 825.202 – Intermittent Leave or Reduced Leave Schedule Three patterns fit that standard most cleanly:
- A chronic serious health condition with episodic flare-ups — migraines, epilepsy, asthma, Crohn’s disease, severe anxiety disorders. You can take intermittent leave for a flare-up even on days you’re not receiving treatment, as long as the condition incapacitates you.4GovInfo. 29 CFR 825.202 – Intermittent Leave or Reduced Leave Schedule
- Pregnancy, including prenatal appointments and periods of severe morning sickness that keep you from working.4GovInfo. 29 CFR 825.202 – Intermittent Leave or Reduced Leave Schedule
- Caring for a spouse, child, or parent with a serious health condition, where the care schedule itself calls for sporadic absences — driving them to chemotherapy, being present during recovery windows, responding to flare-ups.
One important limit: leave for bonding with a newborn generally cannot be taken intermittently unless your employer agrees to it. If your plan is to spread bonding time across the first year in short blocks, that only works with employer buy-in.
Certification and Notice
Requesting intermittent leave means filing a specific Department of Labor certification. Use Form WH-380-E for your own serious health condition, or WH-380-F when you’re caring for a family member.5U.S. Department of Labor. FMLA Forms Forms are on the DOL website or through your HR department.
The certification asks your provider when the condition started, how long it’s expected to last, and — this part matters most for intermittent claims — how often episodes occur and how long each one typically lasts.6U.S. Department of Labor. Certification of Health Care Provider for Family Members Serious Health Condition Under the Family and Medical Leave Act Vague wording like “patient may need occasional time off” will almost certainly come back for revision. A strong entry reads more like “patient experiences migraine episodes approximately 2-3 times per month, each lasting 4-8 hours, requiring absence from work.” That specificity helps your employer plan and makes approval far more likely.
When the need is foreseeable — scheduled treatments, planned surgery, recurring therapy — you owe your employer at least 30 days’ advance notice. When the timeline doesn’t allow that, notice is due as soon as practicable, meaning the same day you learn of the need or the next business day.7eCFR. 29 CFR 825.302 – Employee Notice Requirements for Foreseeable FMLA Leave Once the employer requests certification, you have at least 15 calendar days to return it.8eCFR. 29 CFR 825.305 – Certification, General Rule That window is tight when a provider is booked out, so start the paperwork the day you request leave. Genuine good-faith delays can be extended, but the delay should be documented.
For each individual absence, follow your company’s normal call-in procedure and mention that the absence is FMLA-related. Skipping that step doesn’t automatically cancel your protection, but it gives your employer grounds to treat the absence as unexcused.
How the Time Comes Off Your Bank
Intermittent leave has to be tracked in the smallest time increment your employer applies to any other leave, capped at one hour. If sick time is tracked in 15-minute blocks, intermittent FMLA is tracked the same way; if all other leave is tracked in full days, FMLA still has to be tracked in increments no larger than one hour.9eCFR. 29 CFR 825.205 – Increments of FMLA Leave for Intermittent or Reduced Schedule Leave Rounding up costs you protected time. A 20-minute absence rounded to 30 quietly takes 10 extra minutes out of your bank.
Your entitlement can’t be reduced by more than the time you actually used.9eCFR. 29 CFR 825.205 – Increments of FMLA Leave for Intermittent or Reduced Schedule Leave For a full-time employee at 40 hours a week, 12 workweeks translates to 480 hours over the 12-month measurement period. Every two-hour absence chips at that total, so keeping your own running log alongside the employer’s tracking is worth the effort.
Job, Benefit, and Pay Protection
The core protection of FMLA is job restoration. When you return from any FMLA leave, including intermittent, your employer must put you back in the same position you held or an equivalent one with the same pay, benefits, and working conditions.10Office of the Law Revision Counsel. 29 USC 2614 – Employment and Benefits Protection That right applies even if someone else was hired to cover your duties or the position was restructured during your absence.11eCFR. 29 CFR 825.214 – Employee Right to Reinstatement
Federal law also bars an employer from interfering with your FMLA rights or retaliating against you for using them.12Office of the Law Revision Counsel. 29 USC 2615 – Prohibited Acts Your employer cannot count FMLA absences against you under a no-fault attendance policy, use your leave as a negative factor in promotion or performance decisions, or fire you for exercising your rights.13eCFR. 29 CFR 825.220 – Protection for Employees Who Request Leave or Assert FMLA Rights Without that rule, a point-based attendance system would effectively punish every intermittent absence. FMLA does not make you untouchable, though. If your position would have been eliminated in a layoff regardless of your leave, or if you commit a fireable offense, FMLA does not shield you.
Bonuses tied to a specific goal — perfect attendance, a production target, a set number of hours — can be denied or prorated when FMLA leave keeps you from hitting the goal. But your employer has to treat FMLA absences the same way it treats equivalent non-FMLA absences. If someone on jury duty or personal leave still gets the attendance bonus, so do you. Bonuses not tied to individual goals, like a company-wide holiday bonus, are generally paid to employees on FMLA leave the same as everyone else.
Health Coverage While You’re Out
Your employer must maintain group health coverage during FMLA leave on the same terms as if you were still working.14eCFR. 29 CFR 825.209 – Maintenance of Employee Benefits Family coverage continues if you had it, and dental, vision, and mental health benefits stay in place. You’re still responsible for your share of the premiums, and the employer can require you to keep paying during unpaid leave.
All benefits must be restored immediately on return, at the same levels, with no new waiting periods or requalification.15eCFR. 29 CFR 825.215 – Equivalent Position If life insurance lapsed during unpaid leave, the employer cannot require a physical exam to re-enroll.
If you don’t return to work after exhausting FMLA leave, the employer can recover the premiums it paid to keep your health coverage active during unpaid periods.16U.S. Department of Labor. Family and Medical Leave Act Advisor – Employer Recovery of Benefit Costs That recovery right disappears when the reason you didn’t return is a continuing serious health condition or other circumstances beyond your control. Simply choosing not to come back, though, can produce a bill.
Whether You Get Paid
FMLA leave is unpaid by default. You can choose to substitute accrued paid leave — vacation, sick, personal — so you keep receiving a paycheck during FMLA absences. Your employer can also require that substitution, meaning your paid balance gets drawn down before you go unpaid. Either way, the paid and FMLA leave run at the same time; substituting paid leave does not extend your 12-week entitlement.17eCFR. 29 CFR 825.207 – Substitution of Paid Leave
A number of states run their own paid family and medical leave programs with partial wage replacement. Where those apply, the state benefit can run alongside your federal FMLA entitlement. Eligibility rules and benefit amounts vary, so check with your state labor department.
What Your Employer Can Do Back
Intermittent leave is not one-directional. The regulations give employers specific tools for managing the disruption sporadic absences create.
When your intermittent leave is foreseeable and based on planned medical treatment, the employer can temporarily transfer you to a position that better accommodates the recurring absences.18eCFR. 29 CFR 825.204 – Transfer of an Employee to an Alternative Position During Intermittent Leave or Reduced Schedule Leave The alternative role must offer equivalent pay and benefits, and you must be qualified for it. The transfer has to respect any collective bargaining agreement and other laws, including the Americans with Disabilities Act. It’s a management tool, not a permitted punishment for taking leave.
Your employer can also require updated medical certification, but not at will. Recertification is generally limited to no more than every 30 days and only in connection with an absence. If the original certification specifies a minimum duration longer than 30 days, the employer must wait until that period ends. For conditions expected to last more than six months, recertification can be requested every six months.19eCFR. 29 CFR 825.308 – Recertifications Earlier recertification is allowed when you ask to extend leave or when the pattern of absences shifts significantly from what the certification described. Employers watch intermittent patterns closely, and a mismatch between certification and actual usage is the fastest way to trigger scrutiny.
Military Family Situations
Two FMLA categories apply specifically to military families, and both can be taken intermittently.
Qualifying exigency leave covers events arising from a spouse, child, or parent’s covered active duty or call-up: military-sponsored events, arranging childcare or eldercare, powers of attorney and other legal or financial matters, counseling, and time with a service member on short-term rest and recuperation leave (up to 15 calendar days).20U.S. Department of Labor. Qualifying Exigency Leave Under the Family and Medical Leave Act Most of these come in short bursts, so intermittent use is the norm. Unlike health-related intermittent leave, this category does not require a medical-necessity determination.
Military caregiver leave gives a spouse, child, parent, or next of kin of a service member with a serious injury or illness up to 26 workweeks in a single 12-month period to provide care.21U.S. Department of Labor. Military Caregiver Leave for a Current Servicemember Under the Family and Medical Leave Act That 26-week ceiling is the combined cap for all FMLA reasons during the period; using 8 weeks for caregiver leave leaves up to 12 of the remaining 18 weeks for other qualifying reasons. Like other health-related FMLA, it can be taken intermittently when medically necessary.