Can You Fire an Employee on FMLA? The Definitive Employer Defense Guide (2026)

The Myth of Absolute Immunity: FMLA Does Not Guarantee Job Security

One of the most persistent and costly misconceptions among small business owners and HR managers is that employees on Family and Medical Leave Act (FMLA) leave possess absolute immunity from termination. In reality, the statute is unambiguous: FMLA leave grants job protection, not employment insulation.

Under federal regulations (29 CFR § 825.216(a)), 'An employee has no greater right to reinstatement or to other benefits and conditions of employment than if the employee had been continuously employed during the FMLA leave period.' An employer is legally permitted to discharge an employee on leave if the employer can prove that the worker would have been terminated regardless of whether they exercised their statutory FMLA rights.

The 4 Lawful Grounds for Terminating an Employee on FMLA Leave

1. Pre-Existing Documented Performance Deficiencies: If an employee was placed on a formal, written Performance Improvement Plan (PIP) or had documented written reprimands prior to requesting medical leave, the employer may proceed with separation if pre-established milestones were missed.

The critical evidentiary standard is that the decision was in motion before the protected leave request occurred.

2. Bona Fide Organizational Reductions in Force (RIF): When economic downturns, mergers, or department reorganizations force company-wide layoffs, employees on FMLA leave are not exempt. To withstand federal scrutiny, the employer must demonstrate objective, non-discriminatory selection criteria (such as tenure, entire division shutdowns, or historical sales performance) applied uniformly across both active and absent staff.

3. FMLA Fraud, Moonlighting, and Dishonesty: Under 29 CFR § 825.216(d), an employee who fraudulently obtains or abuses FMLA leave is not protected by the statute's job restoration or maintenance of health benefits provisions. If an employer uncovers credible evidence (such as verified surveillance, secondary employment violating company moonlighting policies, or social media activity showing physical strenuous recreation while claiming total incapacity), termination is legally defensible.

4. Permanent Inability to Perform Essential Functions: If medical certification or physician notes establish that an employee will be permanently unable to perform essential job functions even with reasonable accommodations under the Americans with Disabilities Act (ADA), the employer is not legally obligated to hold the position open indefinitely after the 12 weeks of statutory FMLA are exhausted.

The McDonnell Douglas Burden-Shifting Framework in Federal Court

When an employee files a federal retaliation lawsuit under 29 U.S.C. § 2615(a)(2), courts analyze the claim using the three-step burden-shifting framework established in McDonnell Douglas Corp. v. Green:

Step 1 (Prima Facie Case): The employee must prove: (a) they engaged in protected FMLA activity; (b) they suffered an adverse employment action; and (c) a temporal proximity or causal connection exists between the leave and the termination.

Step 2 (Legitimate Non-Discriminatory Reason): The burden shifts to the employer to articulate an objective, legitimate, non-retaliatory business justification for the discharge (e.g. plant closure, documented attendance point infractions prior to leave, or gross misconduct).

Step 3 (Pretext Burden): The burden shifts back to the employee to prove that the employer's stated reason was a pretext—a false cover-up for unlawful retaliation. If the employer maintains an immutable digital audit log with contemporaneous notes, the employee cannot satisfy this burden.

10-Point Pre-Termination Legal Audit Checklist for HR

Before approving any termination of an employee on or returning from FMLA leave, HR must verify: (1) Is there written proof of the performance issue dated prior to the leave request? (2) Were other employees in the same department treated identically for similar infractions? (3) Did any supervisor make derogatory comments regarding the employee's absences? (4) Was legal counsel consulted? (5) Are all leave balances and WH-382 notices stamped in compliance software?