How to Lawfully Deny an FMLA Leave Request: Step-by-Step Employer SOP (2026)

The High Stakes of Denying FMLA Leave

Denying an employee's request for Family and Medical Leave Act (FMLA) leave is the single most litigated action in federal employment law. Under 29 U.S.C. § 2615(a)(1), an unlawful denial constitutes statutory interference, subjecting the employer to strict liability, mandatory back pay, front pay, liquidated damages (double damages), and the employee's attorney's fees.

However, employers are under no obligation to approve requests that do not satisfy federal requirements. A lawful denial requires meticulous adherence to statutory procedures, specific written notices, and strict preservation of employee cure windows.

The Only 4 Lawful Grounds to Deny an FMLA Request

1. Employer Non-Coverage: The employer does not employ 50 or more employees within a 75-mile radius, or did not employ 50+ staff for 20 workweeks in the current or preceding calendar year under 29 CFR § 825.104. (Note: verify state law like California CFRA or New York PFL before denying, as state thresholds are often as low as 1 to 5 staff).

2. Employee Ineligibility: The employee has worked for the employer for less than 12 total months (accounting for the 7-year lookback rule under § 825.110(b)), or has completed fewer than 1,250 actual hours of service during the 12 months immediately preceding the leave start date.

3. Failure to Submit or Cure Medical Certification (29 CFR § 825.313): The employer properly delivered written notice requesting medical certification (WH-380), granted at least 15 calendar days to return it, followed up with a written 7-day cure notice specifying any deficiencies, and the employee failed to return a complete certification without proving diligent good-faith efforts.

4. Non-Qualifying Health Condition: The medical documentation reveals that the condition does not meet the statutory definition of a 'serious health condition' under 29 CFR § 825.113 (e.g. minor colds, routine flu, headache, routine dental care, or voluntary cosmetic treatments without inpatient hospitalization).

The Mandatory Form WH-382 Written Denial Protocol

An oral denial is legally invalid. Under 29 CFR § 825.300(d), the employer MUST issue Form WH-382 (Designation Notice) within 5 business days of receiving complete information, checking the box indicating that 'FMLA leave is not approved' and detailing the precise statutory rationale.

Copy-Paste Denial Letter Template: 'Dear [Employee Name], We received your request for medical leave dated [Date]. Following review under federal FMLA regulations (29 CFR Part 825), your request cannot be approved as FMLA-protected leave for the following reason: [Select: Insufficient Hours (1,120 hours worked vs.

1,250 required) / Failure to Submit Medical Certification following 7-day cure notice dated [Date]]. Consequently, absences starting on [Date] will be administered under the company standard attendance policy. If you believe this determination was made in error or have updated medical documentation, please contact HR within 5 business days.'