Interference vs. Retaliation — The Two Medical Leave Claims California Employees Must Understand

HOME › CALIFORNIA EMPLOYMENT LAW › MEDICAL LEAVE VIOLATIONS › Interference vs. Retaliation — CFRA and FMLA Claims

Updated April 2026 to reflect current CFRA standards under Government Code § 12945.2, FMLA standards under 29 U.S.C. § 2601 and 29 C.F.R. Part 825, SB 590's 2026 expansion of paid family leave, and current California appellate treatment of interference and retaliation theories in medical leave cases.

Two employees take medical leave. Both return to find their positions have been eliminated.

Both are told the elimination was part of a restructuring that had nothing to do with their leave. One has an interference claim. One has a retaliation claim. Both may have both.

The distinction between interference and retaliation in medical leave cases is not a technicality. It determines what the employee must prove, what the employer must show in defense, and how the entire litigation strategy is built.

Getting this analysis right at the outset of a medical leave case is as important as any decision made in the subsequent litigation.

What Interference Is — The No-Intent Theory

Interference under CFRA and FMLA occurs when an employer denies, restrains, or otherwise impedes an employee's exercise of a leave right — regardless of the employer's motive or intent.

29 C.F.R. § 825.220 states that employers cannot interfere with, restrain, or deny the exercise of any right provided by the FMLA. California's CFRA provision under Government Code § 12945.2 mirrors this framework.

The critical feature of an interference claim is that it does not require the employee to show discriminatory intent — if the employer denied a qualifying leave request or failed to restore the employee to their position after leave, the interference is established by the denial itself.

What interference looks like in practice:

An employer who denies a leave request for a qualifying serious health condition has interfered regardless of whether it intended to violate the law. An employer who tells an employee their position will not be held during leave has interfered.

An employer who restores the employee to a substantially different position with reduced pay, status, or responsibilities has interfered with the reinstatement right. An employer who disciplines an employee for absences that should have been designated as CFRA or FMLA leave has interfered.

The absence of bad faith is not a defense to interference. An employer who denies leave because it misunderstood the eligibility requirements has still interfered. An employer who fails to designate qualifying absences as CFRA leave — and later uses those absences as a basis for discipline — has interfered regardless of whether it knew the absences qualified.

What Retaliation Is — The Intent-Required Theory

Retaliation under CFRA and FMLA occurs when an employer takes an adverse employment action against an employee because the employee requested or used leave. Unlike interference, retaliation requires proof of a causal connection between the protected activity — the leave request or use — and the adverse action.

Under CFRA's anti-retaliation provision and FMLA's parallel prohibition, the employee must establish three elements: that they engaged in protected activity by requesting or using qualifying leave; that the employer took a materially adverse employment action; and that the protected activity was a substantial motivating factor in the adverse action.

How retaliation differs from interference in practice:

Dimension	Interference	Retaliation
Intent required	❌ No — denial itself is the violation	✅ Yes — causal link between leave and adverse action
What employee proves	Leave qualified + employer denied or impeded it	Protected activity + adverse action + causal connection
Employer's primary defense	Leave did not qualify, or position was genuinely eliminated	Legitimate non-retaliatory reason for adverse action
Adverse action required	❌ No — denial of leave itself is the harm	✅ Yes — termination, demotion, or other material adverse action
Burden shifting	Employee proves denial — employer must show legitimate reason	McDonnell Douglas framework — pretext analysis
Damages	Wages and benefits lost due to denial + reinstatement	Full wrongful termination damages if termination resulted

The retaliation theory is most valuable when the employer did not technically deny leave — the employee took leave, returned, and then experienced adverse employment action. Interference addresses what happened during leave. Retaliation addresses what happened as a result of leave.

Why Pleading Both Simultaneously Is Standard Practice

The most common medical leave violation scenario combines elements of both theories, and experienced California employment attorneys almost always plead both simultaneously.

The employer's conduct at different stages of the same situation may support different theories, and the evidence that proves each overlaps significantly.

Consider a warehouse supervisor who requests CFRA leave for a serious health condition. During her leave, HR tells her that her position "may not be available" when she returns.

Upon return, she is offered a position with the same title but with reduced supervisory responsibilities and a 15% pay reduction. Six months later, she was terminated in a restructuring.

The interference claim: The employer interfered with the reinstatement right by failing to restore her to the same or comparable position — the reduced responsibilities and pay cut constitute interference even if the employer characterizes it as a lateral reassignment.

The retaliation claim: The adverse employment actions — the reassignment and eventual termination — were causally connected to her leave. The timing of the reassignment upon return from leave and the termination six months later, combined with the HR statement during leave suggesting her position might not be held, establishes the retaliatory motivation.

Both claims arise from the same conduct. Both are supported by much of the same evidence. The interference claim is stronger because it does not require proving intent — the reinstatement right was violated by the reduced position regardless of the employer's motivation. The retaliation claim adds the wrongful termination damages that the interference claim alone may not fully support.

The Employer Defenses — What Each Theory Must Overcome

Interference defenses:

The most common employer defense to an interference claim is that the leave did not qualify — that the employee did not have a serious health condition under the applicable statute, that the employer lacked sufficient notice, or that the employee failed to follow the certification process.

A second common defense is the "same action" argument: that the position would have been eliminated regardless of the leave, meaning the employer would have taken the same action even if the employee had never requested leave.

The "same action" defense — also known as the "key employee" exception under the FMLA — is available in limited circumstances. Under FMLA, an employer may refuse reinstatement to a salaried employee who is among the highest-paid 10% of employees within 75 miles if reinstatement would cause substantial and grievous economic injury and the employee received timely notice. This exception is narrow and rarely successfully applied. Under CFRA, the comparable limitation is similarly constrained.

Retaliation defenses:

The employer's primary defense to a retaliation claim is the legitimate non-retaliatory reason — the same McDonnell Douglas framework that governs FEHA retaliation and discrimination claims.

The employer articulates a business justification for the adverse action — restructuring, performance, position elimination — and the burden shifts to the employee to show the justification is pretextual. For a full analysis of how pretext is established in retaliation cases, see our guide to proving causation in California retaliation claims.

The timing argument is central to defeating the legitimate-reason defense in medical-leave retaliation cases. An employer whose restructuring produces a position elimination the week after an employee returns from twelve weeks of CFRA leave — with no pre-leave documentation of any restructuring plan — has a pretext problem that the stated business justification alone cannot resolve.

The SB 590 2026 Expansion — New Protected Leave Categories

SB 590, effective January 1, 2026, expanded California's paid family leave program to cover care for a "designated person" — a person identified by the employee who is not otherwise covered by the existing family member definitions. This expansion creates new protected leave categories that are now subject to the same interference-and-retaliation framework.

An employee who takes paid family leave under the SB 590 expansion to care for a designated person has the same interference and retaliation protections as an employee taking leave for a covered family member. An employer who denies this leave has interfered. An employer who terminates an employee for taking this newly protected leave has engaged in retaliation.

The 2026 expansion means the pool of protected leave conduct — and the corresponding pool of potential violations — has grown materially since January 1, 2026.

How Interference and Retaliation Interact With FEHA

Medical leave violations frequently occur alongside FEHA discrimination and accommodation violations — particularly in cases involving disability-related leave. The overlap produces a multi-theory claim structure that is substantially stronger than any single theory.

When an employee takes CFRA leave for a disability and returns to find they have been terminated, they may simultaneously have a CFRA interference claim for the failure to reinstate, a CFRA retaliation claim for the termination following leave, a FEHA disability discrimination claim for the adverse action based on their disability, and a FEHA failure to accommodate claim if the employer did not engage in the interactive process before terminating.

Each claim is evaluated independently, each carries its own damages framework, and the combined exposure across all four theories is substantially larger than any single claim.

The FEHA claims add the uncapped emotional distress and punitive damages that the CFRA and FMLA frameworks alone may not fully support. For the full intersection between medical leave violations and FEHA wrongful termination, see our California wrongful termination guide.

Real Cases — Interference and Retaliation in California Medical Leave

Technology, San Jose. A software engineer took 10 weeks of CFRA leave for a serious health condition. Upon return, he was restored to his position — but his team had been restructured during his absence, and he was assigned to a different project with reduced scope and no access to the senior leadership meetings his role had previously included.

The interference claim was supported by the reinstatement right's requirement that the employer restore the employee to the same or a comparable position — the reduced scope and exclusion from leadership access constituted a failure to restore the employee to a comparable position, even without a pay cut.

The employer's argument that the restructuring would have occurred regardless of the leave was undermined by the absence of any documentation of the restructuring plan predating the leave request. Use our wrongful termination case qualifier to assess whether your reinstatement situation involves an interference claim.

Healthcare, Los Angeles. A nurse took FMLA leave for a serious health condition that required surgery and a six-week recovery. During her leave, her manager called her twice to discuss work matters and once emailed to ask when she would return and whether she was "really that sick."

Upon her return, her schedule was changed to less desirable shifts, and her annual performance review — due during her leave — was delayed for four months.

The interference claim was established by the employer's communications during leave — which constituted interference with the employee's leave rights by pressuring her to return — and by the schedule change upon reinstatement, which materially affected the terms of her employment.

The retaliation claim was supported by the manager's statements during leave and the adverse schedule change immediately upon return. If you experienced pressure to return from leave early or adverse changes upon reinstatement, our FEHA Claim Checker evaluates whether the circumstances support an interference or retaliation claim.

What to Do If Your Leave Rights Were Violated

Document every communication about your leave — every interaction with HR and management before, during, and after leave. The employer's statements during the leave period — about whether your position will be held, about expectations for your return, about the status of your role — are central evidence in both interference and retaliation claims.

Request your personnel file immediately upon return or upon termination. Under California Labor Code § 1198.5, the employer must provide access within 30 days of a written request. What is in the file — and what is notably absent — establishes the baseline against which the employer's post-leave conduct is measured.

Identify the theory — or both. If your employer denied leave entirely, interference is the primary theory. If your employer allowed the leave but took adverse action upon return or after return, retaliation is the primary theory.

If both occurred, both theories apply. File with the California Civil Rights Department within three years for CFRA claims. FMLA interference claims have a two-year statute of limitations — three years if the violation was willful. For the complete framework on California medical leave violations, see our California medical leave violations guide.

Frequently Asked Questions

What is the difference between an interference claim and a retaliation claim under CFRA?

An interference claim requires only that the employer denied, restrained, or impeded the employee's exercise of a leave right — no discriminatory intent is required.

A retaliation claim requires proof that the employer took an adverse employment action because the employee requested or used leave — a causal connection between the protected activity and the adverse action must be established. Both theories can arise from the same conduct and are frequently pleaded simultaneously.

Do I have an interference claim if my employer allowed my leave but fired me when I returned?

Potentially — if the termination constitutes a failure to reinstate to the same or a comparable position. The interference right extends beyond the leave itself to the reinstatement obligation.

A termination upon return may be analyzed as both an interference with the reinstatement right and retaliation for taking leave. Which theory is stronger depends on the specific facts and the employer's stated justification.

Does the employer have a defense if it had terminated me anyway?

Yes — the "same action" defense is available for both interference and retaliation claims. For interference, the employer must show the position would have been eliminated regardless of the leave.

To establish retaliation, the employer must show that the adverse action was based on legitimate non-retaliatory reasons. Both defenses are subject to pretext analysis — an employer who cannot produce pre-leave documentation of the restructuring or performance concerns faces significant challenges sustaining either defense.

Can I have both a CFRA retaliation claim and an FEHA disability discrimination claim for the same termination?

Yes — and this is one of the most important strategic considerations in medical leave cases. CFRA retaliation claims and FEHA disability discrimination claims are independent theories that can both arise from the same termination. CFRA retaliation focuses on the causal link between leave and termination.

FEHA disability discrimination focuses on whether the termination was motivated by the underlying disability. The FEHA claim adds uncapped emotional distress and punitive damages, which are not always available under the CFRA alone.

What is the statute of limitations for medical leave interference and retaliation claims?

CFRA claims must be filed with the California Department of Civil Rights within 3 years of the violation. FMLA interference claims have a two-year statute of limitations — extended to three years if the violation was willful.

Filing a CFRA complaint with the CRD simultaneously preserves both state and federal claims in most cases. Do not wait — both deadlines run from the date of the violation, not from the date you consulted an attorney.

What does the SB 590 2026 expansion add to medical leave protections?

SB 590, effective January 1, 2026, expanded California's paid family leave program to cover care for a "designated person" — a person identified by the employee who does not fall within the existing family member categories.

This expansion means additional leave taken for a designated person is now protected against both interference and retaliation, effective January 1, 2026. Employers who deny this newly protected leave or retaliate against employees who take it are subject to the same violation framework as any other CFRA violation.

Connect With a Vetted California Medical Leave Attorney

Medical leave cases involving both interference and retaliation require careful analysis of what happened before, during, and after leave, and which theory best fits each stage of the employer's conduct. Early legal consultation ensures both theories are identified and preserved from the outset.

DISCLOSURE

This article is intended for general informational purposes only and does not constitute legal advice. No attorney-client relationship is formed by reading this content. 1000Attorneys.com is a State Bar of California Certified Lawyer Referral and Information Service (LRS #0128), not a law firm.