Intermittent FMLA is the most operationally complex form of leave under the Family and Medical Leave Act, and the most common source of compliance violations for employers. Unlike a single continuous absence, intermittent leave happens in unpredictable blocks: a few hours for a migraine, a day for a chemotherapy session, a morning for a therapy appointment. Managing it correctly requires understanding both the employee’s rights and the employer’s obligations.
This guide covers the complete 2026 rules: who qualifies, how to request it, how employers must track and respond, what the new DOL opinion letter changes, and where most HR teams get it wrong. Both employees and employers will find what they need here.
If you need your FMLA certification completed, FMLADocs connects you with a licensed healthcare provider who can complete your form correctly and on time.
What Is Intermittent FMLA Leave?
Intermittent FMLA leave is leave taken under the Family and Medical Leave Act in separate blocks of time due to a single qualifying reason. According to 29 CFR Section 825.202, intermittent leave may include periods from an hour or more to several weeks. A reduced leave schedule is one that reduces an employee’s usual number of working hours per workweek or hours per workday, and is a change in the employee’s schedule for a period of time, normally from full-time to part-time.
The critical distinction is that all of the leave must relate to a single qualifying reason. An employee cannot bank intermittent leave from multiple separate conditions into one combined FMLA period without separate certifications for each condition.
Who Qualifies for Intermittent FMLA
The employer must be a covered employer and the employee must meet the FMLA eligibility requirements. According to DOL Fact Sheet 28: The Family and Medical Leave Act, covered employers include private-sector employers who employ 50 or more employees in 20 or more workweeks in the current or previous calendar year, all public agencies including federal, state, and local government employers regardless of employee count, and all public and private elementary and secondary schools regardless of size.
Employee Eligibility
- 12 months of employment: Employees must have worked for the employer for at least 12 months before FMLA leave starts. The 12 months do not need to be consecutive. Only employment within the past seven years counts, unless the break in service is due to military obligations or is governed by a collective bargaining or written agreement.
- 1,250 hours in the past 12 months: Only hours actually worked count. Paid leave, unpaid leave, and FMLA leave are not included in the 1,250-hour calculation.
- 50 employees within 75 miles: The employee must work at a location where the employer has at least 50 employees within a 75-mile radius. For remote employees, the worksite is the location to which they report or from which their work is assigned.
Both full-time and part-time employees can qualify provided they meet the 12-month and 1,250-hour thresholds. There is no minimum hours-per-week requirement beyond the annual 1,250-hour total.
Which Conditions Qualify for Intermittent FMLA
Not every medical or family reason qualifies for intermittent leave. According to the DOL’s Fact Sheet 28F on qualifying reasons for FMLA leave, employees have the right to take intermittent FMLA leave when it is medically necessary for a serious health condition, whether their own or a qualifying family member’s. Intermittent leave is also available for military family leave reasons without requiring employer consent. The one situation where employer agreement is required is bonding leave: employees may only take intermittent or reduced schedule leave to bond with a newborn or newly placed child if both the employee and employer agree.
Intermittent Leave Must Be Granted
- Employee’s own serious health condition when medically necessary
- Caring for a spouse, parent, son, or daughter with a serious health condition when medically necessary
- Qualifying military exigency leave related to a family member’s covered military service
Intermittent Leave Requires Employer Consent
- Birth of a child and bonding (employer and employee must agree)
- Adoption or foster care placement and bonding (employer and employee must agree)
What Counts as a Serious Health Condition
A serious health condition under the FMLA is an illness, injury, impairment, or physical or mental condition that involves inpatient care or continuing treatment by a healthcare provider. Conditions that qualify for intermittent leave include:
- Chronic conditions requiring periodic treatment: diabetes, severe arthritis, Crohn’s disease, asthma
- Mental health conditions requiring ongoing treatment: depression, anxiety, PTSD, bipolar disorder, OCD
- Cancer requiring chemotherapy, radiation, or surgical treatment
- Migraine disorders when physician-documented as chronic and incapacitating
- Pregnancy-related conditions including prenatal appointments
- Recovery from surgery when periodic treatment or flare-ups occur
Common Mistake: Minor Conditions Do Not Qualify
Routine colds, the flu (unless complications develop), minor injuries, and elective procedures that do not require continuing treatment are not serious health conditions under the FMLA. An employee who calls in sick with a cold is not protected by intermittent FMLA even if they have an active FMLA certification for a separate qualifying condition. Each absence must relate to the certified condition.
2026 Update: Travel Time Now Counts as Intermittent FMLA
The biggest intermittent FMLA change of 2026 is DOL Opinion Letter FMLA2026-2, issued January 5, 2026. This letter clarifies a long-standing ambiguity about whether travel time to and from medical appointments is FMLA-protected, though as a DOL opinion letter it is not legally binding on courts.
What DOL Opinion Letter FMLA2026-2 Says:
- Travel time counts: Employees may use intermittent FMLA leave for travel time to and from medical appointments for their own serious health condition or that of a qualifying family member.
- Applies to both directions: Both the trip to the appointment and the return trip home are covered.
- Pure travel only: If the employee makes stops for personal errands (grocery shopping, dropping off dry cleaning), FMLA protection does not extend to that time.
- No certification change needed: Medical certifications do not need to address travel time because travel is outside the knowledge of the healthcare provider.
- Employer tracking: Employers must track travel time as FMLA leave using the same increment rules as any other intermittent leave.
The practical impact: an employee with a serious health condition whose specialist is 90 minutes away can count the 3-hour round trip as intermittent FMLA leave. Previously, many employers only credited the appointment time itself. This ruling is particularly significant for employees in rural areas who travel longer distances for specialized medical care.
Notice Requirements: What Employees and Employers Must Do
Employee Notice Obligations
Employees must give 30 days advance notice for foreseeable intermittent leave such as scheduled medical treatments. When leave is not foreseeable, employees must notify the employer as soon as practicable, which the DOL interprets as the same day or the following business day in most cases.
The notice does not need to specifically mention FMLA. An employee who calls in and says ‘I’m having a bad migraine day’ has provided sufficient notice if the employer knows the employee has an active FMLA certification for migraines. Employers cannot penalize employees for failing to say the words ‘FMLA’ if the circumstances would reasonably suggest a qualifying reason.
Employers may require employees to follow their standard call-in procedures for absences, as long as those procedures do not prevent employees from getting the leave they need. An employee who follows the call-in procedure cannot be disciplined for the absence itself.
Employer Response Obligations
Once an employer knows an absence may qualify for FMLA, specific notice obligations trigger. These come from 29 CFR Part 825 Subpart C:
| Notice Required | Deadline |
| Eligibility Notice (WH-381) | Within 5 business days of the leave request |
| Rights and Responsibilities Notice | At the same time as the Eligibility Notice |
| Designation Notice (WH-382) | Within 5 business days of receiving sufficient information |
| Medical Certification Request | Employer must request within 5 business days of the leave request (or leave commencement for unforeseeable leave); employee then has 15 calendar days to return it. |
Medical Certification for Intermittent FMLA
Employers have the right to require medical certification from a licensed healthcare provider before approving intermittent FMLA leave. The DOL’s standard forms are WH-380E (employee’s own condition) and WH-380F (family member’s condition). While employers can use their own forms, they cannot require more information than the DOL forms request.
What the Certification Must Include for Intermittent Leave
- The expected frequency of episodes (example: 1 to 3 times per month)
- The expected duration of each episode (example: 4 to 8 hours per episode)
- Whether the condition qualifies as a serious health condition under the FMLA
- Whether the intermittent leave is medically necessary
Recertification Rules
| Situation | When Recertification Is Allowed |
| Condition expected to last less than 30 days | Not until the minimum period specified in the certification has passed |
| Condition lasting more than 30 days | No more often than every 30 days in connection with an absence |
| Condition lasting longer than 6 months | No more often than every 6 months |
| Changed circumstances or pattern of abuse | May be requested regardless of the above timelines |
| Second and third opinions | Allowed for initial certification, not for recertification |
FMLADocs connects employees with licensed healthcare providers who complete WH-380E and WH-380F forms correctly, including the frequency and duration fields required for intermittent leave. Incomplete or vague certification is one of the most common reasons intermittent FMLA requests are denied or disputed. Start your FMLA certification at FMLADocs.com.
Tracking Intermittent FMLA: Rules Employers Must Follow
Intermittent leave tracking is where most employers make mistakes. The rules are specific and non-negotiable.
The Increment Rule
Employers must track intermittent FMLA in the smallest increment used for any other leave type. If the employer tracks sick leave in 15-minute increments, intermittent FMLA must also be tracked in 15-minute increments. The maximum increment allowed is one hour. Employers cannot round up to the nearest half-day or full day if their timekeeping system tracks other leave in smaller increments.
Calculating Leave Used
For employees on intermittent leave, the calculation is:
Hours used / Normal weekly hours = Fraction of the 12-week entitlement used
Example: An employee normally works 40 hours per week. They use 4 hours of intermittent leave. That equals 4/40 = 0.1 weeks, or about 10% of one week of FMLA entitlement.
The Four 12-Month Methods
Employers may choose one of four methods for calculating the 12-month FMLA leave period, but they must apply the chosen method consistently to similarly situated employees. According to U.S. Department of Labor Fact Sheet #28I: Calculation of Leave under the FMLA, the four approved methods are:
| Method | How It Works |
|---|---|
| Calendar year | January 1 through December 31. Simple to administer, but employees may “stack” leave by taking 12 weeks at the end of one year and another 12 weeks at the start of the next. |
| Any fixed 12-month period | A fixed year such as the employer’s fiscal year, an employee anniversary year, or another designated 12-month cycle. This method also allows possible leave stacking. |
| 12 months forward from first FMLA use | The 12-month period begins on the date the employee first uses FMLA leave. This prevents stacking but can be more difficult to track administratively. |
| Rolling backward 12-month period | The employer looks back 12 months from each date leave is used to determine remaining entitlement. This method is generally considered the most effective at preventing leave stacking, but it requires careful and consistent tracking. |
The Department of Labor also states that if an employer fails to select one of the approved methods, the employer must use the method that provides the employee with the most beneficial outcome.
Job Protection and Employee Rights During Intermittent Leave
Intermittent FMLA leave generally carries the same job-protection rights as continuous FMLA leave. Under the Family and Medical Leave Act, employers are prohibited from interfering with employees’ lawful use of FMLA leave or retaliating against employees for exercising FMLA rights.
Interference
Under 29 U.S.C. § 2615(a)(1) – FMLA Interference Provision, employers may not interfere with, restrain, or deny the exercise of FMLA rights. Examples of potential interference include:
- Pressuring employees not to take intermittent FMLA leave or discouraging leave usage
- Requiring employees to find their own replacement coverage as a condition of taking leave
- Scheduling meetings, training, or work obligations in a manner intended to deter protected leave usage
- Penalizing employees for protected FMLA absences under attendance policies
- Requiring employees to delay medically necessary treatment solely for business convenience
At the same time, employees are generally expected to make reasonable efforts to schedule foreseeable medical treatment in a way that minimizes disruption to employer operations when medically feasible.
Retaliation
Under 29 U.S.C. § 2615(a)(2) – FMLA Retaliation Provision, employers may not discharge, discriminate, or retaliate against employees for exercising FMLA rights.
Potential retaliation claims may arise when:
- An employee is terminated shortly after requesting or using intermittent FMLA leave
- A negative performance evaluation is based on FMLA-protected absences
- An employee is denied promotion opportunities because of protected leave usage
- Work assignments, schedules, or responsibilities are negatively altered due to FMLA leave
However, employers may still take adverse employment actions for legitimate reasons unrelated to FMLA leave, such as documented performance problems, misconduct, or company-wide layoffs, provided the action would have occurred regardless of the employee’s use of FMLA leave..
Intermittent FMLA and Abuse Prevention: What Employers Can Legally Do
Intermittent FMLA abuse, particularly the pattern of using leave on Mondays, Fridays, and around holidays, is a genuine operational concern. But the tools available to employers are narrower than many HR teams assume. Here is what is legal versus what creates liability:
| Employers CAN Do This | Employers CANNOT Do This |
| Request recertification if a pattern of abuse is suspected (e.g., leave always before weekends) | Require a doctor’s note for each individual intermittent absence |
| Require employees to follow normal call-in procedures | Deny FMLA leave because the timing is inconvenient |
| Transfer employee temporarily to a different role to minimize disruption (with equivalent pay and benefits) | Transfer employee to a less desirable role as punishment |
| Request second and third opinions for initial certifications | Request second opinions for recertifications |
| Contact the healthcare provider to authenticate or clarify the certification | Contact the provider to obtain additional medical information not required by the FMLA |
| Require periodic re-reporting of status for long-term conditions | Require employees to re-certify more frequently than allowed by regulation |
The pattern exception is important. If an employee’s intermittent leave consistently falls on the same days (always Mondays, always before holidays), the employer may request recertification and ask the provider to confirm whether the condition could reasonably be expected to cause that specific pattern. This is one of the most legally defensible tools for addressing suspected abuse.
Intermittent FMLA Compliance Checklist for HR
HR Compliance Checklist: Intermittent FMLA 2026:
- Eligibility: Verify 12-month tenure, 1,250 hours worked in the 12 months before leave starts, and the requirement that the employer has at least 50 employees within 75 miles of the employee’s worksite before any approval or denial.
- Notice (WH-381): Provide the eligibility and rights notice within 5 business days of the initial request for leave or when the employer learns the absence may be for an FMLA-qualifying reason.
- Certification: Request in writing. The employer must give the employee at least 15 calendar days to provide certification. Never contact the provider directly without the employee’s written authorization. A medical certification need not include any information regarding travel time to be complete and valid under the FMLA.
- Designation (WH-382): Provide the written designation notice within 5 business days of having enough information to determine whether the leave qualifies as FMLA. The notice must include the amount of leave that will count against the employee’s FMLA entitlement, if known.
- Tracking increment: Use the smallest increment the employer uses to account for any other type of leave, provided it is not greater than one hour. If an employer uses different increments for different leave types, FMLA leave must be tracked in the smallest of those increments.
- Attendance policy: Ensure FMLA absences are fully excluded from attendance tracking and points systems. Writing up an employee for missing work when using FMLA leave or assessing negative attendance points for FMLA leave use constitutes a violation of an employee’s FMLA rights. Audit your HR system’s configuration.
- Travel time: Since January 5, 2026, an eligible employee may use FMLA leave to travel to or from a medical appointment for a serious health condition, whether or not the medical certification indicates the need for or time required for such travel. Travel time unrelated to the serious health condition is not protected. (DOL Opinion Letter FMLA2026-2.)
- Manager training: Ensure supervisors know they cannot question whether an employee “really” needs leave, pressure employees to shorten absences, or discipline for FMLA-protected absences. Critically, an employee giving notice of the need for FMLA leave does not need to expressly assert rights under the Act or even mention the FMLA — so supervisors must be trained to flag any absence that may qualify to HR, even when FMLA is never mentioned, as failure to designate can itself constitute interference.
- State law overlay: Identify all states where you have employees and apply the most protective law. Some states have their own family and medical leave laws, and nothing in the FMLA prevents employees from receiving protections under other laws. State laws may exceed federal standards in leave duration, eligibility thresholds, paid leave, or the definition of covered family members — consult employment counsel per state.
- Record retention: It is mandatory for employers to retain FMLA records for three years per 29 U.S.C. § 2616 and 29 C.F.R. § 825.500. Records must be made available to the DOL upon request and kept as confidential medical records, separate from general personnel files.
Conclusion
Intermittent FMLA is one of the most legally complex areas of employment law for both employers and employees. Employees with serious chronic or recurring conditions have strong federal protections for taking leave in separate blocks of time, and those protections have been expanded in 2026 to include travel time to medical appointments under DOL Opinion Letter FMLA2026-2.
For employers, compliance requires getting five specific things right: eligibility determination, timely notices, correct certification, accurate tracking in the right increments, and excluding FMLA absences from attendance discipline. Manual processes create the most risk. Manager training and clear policies close most gaps.
For employees, the most important step is getting your certification completed correctly and submitted on time. A vague or incomplete WH-380E or WH-380F is the most common reason intermittent leave requests are disputed. FMLADocs provides access to licensed healthcare providers who complete these forms correctly. Check your eligibility and start your FMLA certification at FMLADocs.com.
Frequently Asked Questions
Can an employer deny intermittent FMLA for child bonding?
Yes, under federal FMLA, employers have discretion to approve or deny requests for intermittent bonding leave after the birth or adoption of a child. However, if the newborn has a serious health condition requiring ongoing care, intermittent leave must be granted when medically necessary.
How often can employers request recertification?
Generally, recertification can be requested no more than once every 30 days unless the employee requests an extension, circumstances change significantly from what was originally certified, or the employer receives information questioning the validity of the certification.
What happens if an employee exhausts their 12-week FMLA entitlement?
Once the 12-week entitlement is exhausted in a 12-month period, the employee no longer has FMLA protection for absences. However, employers should consider whether accommodations under the Americans with Disabilities Act might be required. Additionally, some state laws provide additional leave beyond federal FMLA.
Can employers require employees to schedule intermittent leave during specific times?
For planned medical treatment, employers can require employees to make reasonable efforts to schedule leave to minimize business disruptions. However, employers cannot refuse leave or dictate appointment times. Medical necessity and healthcare provider availability take precedence.
What if an employee’s intermittent FMLA usage seems suspicious?
When usage patterns raise concerns, employers can request additional information through recertification, but they must be careful not to interfere with legitimate leave usage. Focus on objective inconsistencies between certified restrictions and observed behavior. Conduct thorough investigations before taking adverse action.
