FMLA Eligibility: Do ‘Bonus Hours’ Count Toward the 1,250?

FMLA eligibility usually looks straightforward: Employees need 1,250 hours of service in the prior 12 months. But the calculation isn’t always that simple, especially when bonus pay or shift differentials enter the picture.

This well-established Sixth Circuit precedent – Mutchler v. Dunlap Memorial Hospital – shows how “hours worked” questions can move from DOL scrutiny into litigation. Those disputes still land employers in audits and court, making precise hours tracking non-negotiable.​

FMLA Eligibility: What Counts Toward 1,250 Hours

In Mutchler, respiratory therapist Carla Mutchler sought intermittent FMLA leave for neck surgeries but had only 690 actual hours in her 12-month lookback period. She argued “bonus hours” – extra pay for weekend shifts (e.g., 10 additional paid hours for a Saturday) – should count toward the threshold. 

The employer initially approved her first leave request but later clarified her FMLA ineligibility for subsequent absences – leading to her termination.

She then sued, alleging FMLA interference and retaliation. A district court granted summary judgment to the hospital, and Mutchler appealed to the Sixth Circuit.

Why Appeals Court Backs Employer

The Sixth Circuit affirmed summary judgment for the employer on two fronts:

• Hours strictly per FLSA: “Hours of service” mirror Fair Labor Standards Act rules (29 CFR § 785), counting only time the employee is “required to give” the employer. Bonus pay tied to hours – even if labeled as such – doesn’t add to the tally unless actual work occurred. Mutchler’s differentials were compensation premiums, not extra hours worked.
• No equitable estoppel: The employer first OK’d her leave but quickly sent written notices clarifying she didn’t qualify under FMLA rules – before her second absence. She argued DOL rules barred reversing eligibility after approval. The court rejected that as overreach and said common-law estoppel still wouldn’t apply. She had to prove the hospital misled her, and she reasonably relied on it to her detriment, which the facts didn’t show.

Under FLSA rules, the following do not count toward the 1,250-hour requirement:

• Paid leave, including vacation, sick time or holidays
• Prior FMLA leave
• Shift bonuses or differentials, unless tied to actual hours worked
• On-call time, unless the employee is “engaged to wait”

HR Compliance Takeaways

Because eligibility hinges on a 1,250-hour calculation, small errors can create significant exposure. This ruling reinforces where HR processes must be precise to prevent disputes and defend decisions.

• Track eligibility precisely. Audit FLSA-qualifying hours monthly during the 12-month lookback, reconcile payroll reports against timekeeping data, and flag employees nearing 1,250 hours. Part-timers picking up shifts are high-risk for miscalculations, especially when bonus pay is involved.
• Document the calculation. Retain the 12-month hours worksheet or payroll report used to determine FMLA eligibility in the leave file so you can show the calculation.
• Issue eligibility notices without delay. Provide the required notice within five business days of a leave request, and follow up in writing if the initial determination changes.
• Clarify pay versus hours. Train managers and payroll staff that shift differentials, bonuses and premiums do not count toward the 1,250-hour FMLA eligibility requirement unless tied to actual hours worked.
• Review state overlays. Confirm whether state family or medical leave laws apply lower hour thresholds or broader eligibility rules.

Payroll configurations deserve the same scrutiny as time records. Eligibility totals depend on how pay codes are structured and how reports pull data. A scheduled review of system settings and calculation logic helps catch misclassifications before they affect a leave decision.

FMLA eligibility ultimately rises or falls on the numbers. When timekeeping data, payroll classifications and eligibility notices align, employers are far better positioned to withstand DOL scrutiny or review in court.

Mutchler v. Dunlap Memorial Hospital, No. 06-3132 (6th Cir. 5/2/07).