The difference between continuous and intermittent FMLA leave comes down to shape: continuous leave is one unbroken stretch away from work for a qualifying reason, while intermittent leave draws from the same 12-workweek bank in separate pieces, whether that’s occasional days, a few hours at a time, or a temporarily reduced schedule. Both count against the same annual entitlement. Both require you to be eligible in the first place. But the rules for approval, tracking, certification, and return to work diverge in ways that matter before you file paperwork.
What Continuous FMLA Leave Is
Continuous leave is a single, uninterrupted absence for one qualifying reason.1eCFR. 29 CFR 825.202 – Intermittent Leave or Reduced Leave Schedule You leave on a set date, you return on a set date, no workdays in between. The typical uses are recovery from major surgery, the first several weeks after a birth or adoption, or extended caregiving for a seriously ill family member.
Every day of the block counts against your 12 workweeks. Take six consecutive weeks off for a cardiac procedure and you have six weeks left for the rest of that 12-month period.2U.S. Department of Labor. FMLA Frequently Asked Questions
When you come back, your employer must return you to your original position or one virtually identical in pay, benefits, and working conditions, meaning the same duties, an equivalent schedule, and the same or a nearby worksite.3U.S. Department of Labor. Fact Sheet 28A – Employee Protections under the Family and Medical Leave Act Any unconditional pay raises that took effect while you were out apply to you too, and you cannot be forced to re-qualify for benefits you had before leaving.4U.S. Department of Labor. Family and Medical Leave Act Advisor – Equivalent Position and Benefits Unpaid FMLA leave cannot count as a break in service for pension vesting or eligibility, though you don’t accrue additional seniority or benefits while you’re actually out.
What Intermittent FMLA Leave Is
Intermittent leave lets you take time off in separate pieces, all drawing from the same 12-week bank.1eCFR. 29 CFR 825.202 – Intermittent Leave or Reduced Leave Schedule That might mean a day here, a few hours there, or an ongoing pattern of missed shifts tied to the same medical condition. A close cousin is the reduced-schedule leave: instead of skipping full days, you temporarily cut your daily or weekly hours. A full-time employee moving to four-day weeks during chemotherapy is on a reduced schedule.
For a serious health condition, whether yours or a family member’s, your employer cannot refuse intermittent leave when it’s medically necessary. Bonding leave works differently. If you want to take post-birth or post-placement leave in pieces and there’s no medical complication, you need your employer’s agreement, and many say no.5U.S. Department of Labor. Fact Sheet 28Q – Taking Leave from Work for Birth, Placement, and Bonding with a Child If the child has a serious health condition, that consent requirement disappears and intermittent leave is available on the standard medical-necessity terms.
How the Two Types Actually Differ Day to Day
How Time Is Counted
Continuous leave is easy to count: workweeks off equal workweeks used. Intermittent leave has to be tracked in the smallest increment the employer uses for any other type of leave, capped at one hour. If sick time is tracked in 15-minute blocks, intermittent FMLA is tracked in 15-minute blocks. If the employer only tracks other leave in full-day units, it still must use increments no greater than one hour for FMLA, and it cannot round up or charge you for time you didn’t actually take.6eCFR. 29 CFR 825.205 – Increment of FMLA Leave for Intermittent or Reduced Schedule Leave
To translate the 12-week entitlement into hours, multiply your normal weekly schedule by 12. A 40-hour employee has 480 hours; a 50-hour employee has 600.7U.S. Department of Labor. Fact Sheet 28I – Calculation of Leave under the Family and Medical Leave Act If your hours swing week to week, the employer may average the previous 12 months to figure your entitlement.
Temporary Reassignment
Only intermittent (and reduced-schedule) leave triggers the employer’s right to temporarily move you. During an intermittent leave, your employer can transfer you to an alternative position that better accommodates recurring absences. The duties don’t have to match your regular role and the work may be less complex, but pay and benefits must stay equivalent. If you’re shifted to a part-time schedule, your hourly rate stays the same and health insurance continues, though benefits tied to hours worked (like vacation accrual) can be proportionally reduced.8eCFR. 29 CFR 825.204 – Transfer of an Employee to an Alternative Position The transfer cannot be used to punish you or discourage leave, and once you no longer need intermittent leave you must be returned to your original position or an equivalent one right away.
Continuous leave has no such reassignment mechanism. You’re out, and when you come back, you go back to your job or its equivalent.
Medical Certification
Both types of leave can require certification from a healthcare provider. At minimum, that certification must include when the condition started, its expected duration, and enough medical facts to show it qualifies as a serious health condition.9eCFR. 29 CFR 825.306 – Content of Medical Certification If you’re the patient, the provider also has to address whether you can perform the essential functions of your job. The Department of Labor’s optional forms (WH-380-E for your own condition, WH-380-F for a family member’s) cover this, but any format your provider uses is acceptable as long as it contains the required content.10U.S. Department of Labor. FMLA Forms
Intermittent leave demands more. The provider must explain why a continuous block isn’t sufficient and why sporadic absences are medically necessary. For planned treatments like dialysis or physical therapy, the certification needs estimated dates and durations. For conditions with unpredictable flare-ups, it needs an estimate of how often episodes are likely and how long each will last.9eCFR. 29 CFR 825.306 – Content of Medical Certification Specificity helps you: a form saying “two episodes per month lasting two to three days each” gives the employer a framework and gives you fewer disputes.
If the certification comes back incomplete, the employer has to tell you what’s missing and give you seven calendar days to fix it.11eCFR. 29 CFR 825.305 – Certification, General Rule You get at least 15 calendar days for the initial certification.12U.S. Department of Labor. Certification of Health Care Provider for Employees Serious Health Condition under the Family and Medical Leave Act Recertification generally can’t be requested more than once every 30 days and must coincide with an actual absence; if the original certification stated a minimum duration longer than 30 days, the employer waits until that period ends. Regardless of those limits, the employer can always ask for recertification every six months, and can ask sooner if you request an extension, your circumstances change significantly, or new information casts doubt on your stated reason for being out.13U.S. Department of Labor. Family and Medical Leave Act Advisor – Recertification
Returning to Work
Before you return from continuous leave for your own serious health condition, your employer can require a fitness-for-duty certification confirming you can perform the essential functions of your job. That requirement has to be spelled out in the designation notice, not raised at the last minute.14eCFR. 29 CFR 825.312 – Fitness-for-Duty Certification
For intermittent leave, the employer cannot demand a fitness-for-duty certification after every single absence. It can require one no more than once every 30 days, and only when reasonable safety concerns exist about your ability to do your job given the condition that prompted the leave. The employer has to give you advance notice of the requirement and cannot fire you while waiting for the certification.14eCFR. 29 CFR 825.312 – Fitness-for-Duty Certification
Who Is Eligible in the First Place
Both types of leave require the same eligibility. You must work for a covered employer, have been employed there for at least 12 months (not necessarily consecutive), and have worked at least 1,250 hours in the 12 months before leave starts. There’s also a worksite rule: your employer must have at least 50 employees within 75 miles of your worksite.15U.S. Department of Labor. Fact Sheet 28 – The Family and Medical Leave Act
All public employers, including federal, state, and local agencies and public schools, are covered regardless of headcount. Private employers fall under FMLA only if they employed 50 or more workers during at least 20 workweeks in the current or preceding calendar year. If you’re at a small satellite office and the nearest cluster of coworkers is more than 75 miles away, you may not qualify even if the company as a whole is much larger.
Choosing Between the Two
The choice usually isn’t really a choice. It’s driven by the medical situation. Recovery from major surgery calls for continuous leave. Chemotherapy every other Friday calls for intermittent. Extended caregiving for a parent recovering from a stroke is continuous; taking your parent to weekly dialysis is intermittent.
Where you do have discretion, weigh the tradeoffs honestly. Intermittent leave gives you flexibility but layers on tighter tracking, more detailed certification, the possibility of a temporary transfer, and more friction with your employer over unpredictable absences. Continuous leave is administratively simpler and puts your job restoration on cleaner footing, but a single long absence isn’t right for every condition.
For planned treatments, you’re expected to work with your employer on scheduling that doesn’t unnecessarily disrupt operations. Your provider still has final say on medical timing, but if you can choose between a Tuesday morning and a Friday afternoon appointment, the law expects you to factor in staffing needs.16eCFR. 29 CFR 825.302 – Employee Notice Requirements for Foreseeable FMLA Leave For foreseeable leave of either type, you owe your employer at least 30 days’ advance notice. When the need is sudden, notify as soon as practicable. You don’t have to invoke the FMLA by name; telling your employer you need time off for a qualifying reason is enough.
Paid Leave Running Concurrently
Regardless of the type, FMLA leave itself is unpaid. You can substitute accrued vacation, sick time, or personal leave to keep a paycheck coming, and your employer can require you to use accrued paid leave concurrently with FMLA rather than stacking one on top of the other.17eCFR. 29 CFR 825.207 – Substitution of Paid Leave This catches employees off guard: if you expected to use vacation after your FMLA ran out, concurrent use means those vacation weeks count against the same 12-week entitlement instead of extending your time off.
Your employer must also continue your group health insurance on the same terms as if you were working, though you remain responsible for your share of the premium.18U.S. Department of Labor. Family and Medical Leave Act Advisor – Health Plan Premium Payments
If Your Employer Pushes Back
Federal law prohibits interference with your FMLA rights and retaliation for using them. That covers firing and demotion, and it also covers subtler conduct: discouraging you from taking leave, using FMLA absences as a negative factor in promotion decisions, counting FMLA leave under a no-fault attendance policy, or manipulating your schedule to push you below the 1,250-hour threshold.19eCFR. 29 CFR 825.220 – Protection for Employees Who Request Leave or Otherwise Assert FMLA Rights
If you believe your rights have been violated, you can file a confidential complaint with the Department of Labor’s Wage and Hour Division at 1-866-487-9243 or through its online contact form.20U.S. Department of Labor. How to File a Complaint You can also sue in federal or state court. The deadline is two years from the last violation, or three years if the violation was willful.21U.S. Department of Labor. Family and Medical Leave Act Advisor – Filing a Complaint Remedies include lost wages and benefits, actual monetary losses, and reinstatement or promotion where appropriate.