Letter Explaining Family and Medical Leave Template

In plain language: Names the employer, the employee, and the date, and states the letter's purpose clearly in the first sentence.

Common mistake: Addressing the letter to a nickname or job title instead of the employee's legal name — creating a mismatch with payroll records that complicates documentation later.

In plain language: Explicitly states that the employee meets the FMLA eligibility requirements as of the leave start date.

Common mistake: Omitting an explicit eligibility statement and assuming the employee knows they qualify — creating ambiguity about whether the leave is actually FMLA-protected.

In plain language: Identifies the FMLA-qualifying reason for leave without disclosing confidential medical details.

Common mistake: Including specific diagnoses or medical details in the letter body — this violates employee privacy and may expose the employer to ADA or HIPAA-related liability.

In plain language: States the approved start date, expected end date, and total weeks of leave, and notes whether leave is continuous or intermittent.

Common mistake: Stating only the start date without an expected end date or total duration — leaving the employee uncertain about when to return and the employer without a documented expectation.

In plain language: Clarifies whether the leave is paid, unpaid, or runs concurrently with accrued PTO, and confirms that group health benefits continue during the leave period.

Common mistake: Failing to specify whether paid leave runs concurrently with FMLA leave — leading to disputes about PTO balances and total weeks used when the employee returns.

In plain language: Notifies the employee of the deadline to submit completed medical certification and the consequence of failing to do so.

Common mistake: Setting a certification deadline shorter than 15 calendar days — the FMLA minimum — which can render the certification requirement unenforceable.

In plain language: States what the employee must do before returning — typically a fitness-for-duty certification — and confirms their right to job restoration.

Common mistake: Not requiring a fitness-for-duty certification for leave involving a serious health condition, which can create liability if the employee returns before they are medically cleared.

In plain language: Reminds the employee to provide periodic status updates during leave and states who they should contact with questions or if their return date changes.

Common mistake: Omitting a named contact person — employees on leave often contact the wrong person, causing delays in documentation and return-to-work coordination.

In plain language: Closes professionally, provides the HR contact's name and title, and leaves space for acknowledgment if the employer requests a signed copy.

Common mistake: Not requesting a signed acknowledgment — without it, the employer cannot prove the employee received the notice, which is critical if a dispute arises.

A letter explaining family and medical leave is a formal written notice from an employer to an employee that designates an upcoming or ongoing absence as FMLA-qualifying and outlines the employee's rights, the approved leave duration, pay and benefits details, and return-to-work conditions. It serves both as official notification and as a documentation record for the employer's HR files.

Under federal FMLA regulations, an employer must provide a designation notice within five business days of having enough information to determine whether the leave qualifies. Waiting until medical certification is returned is not required for sending the initial notice — if you know or reasonably suspect the reason qualifies, the five-day clock has started.

The FMLA does not require the employee's signature on the designation notice, but best practice is to request a signed acknowledgment of receipt. Without documented delivery, an employee can later claim they never received the notice — a claim that can support an FMLA interference complaint. A signed copy or a certified mail receipt closes that gap.

Yes. An employer may require — or the employee may elect — to substitute accrued paid leave (PTO, sick days, or vacation) to run concurrently with unpaid FMLA leave. The total leave period still counts against the 12-week FMLA entitlement. The letter should clearly state whether paid leave runs concurrently and how the employee's accrued balance is affected.

If the employee fails to provide certification within the 15-calendar-day deadline without a valid reason, the employer may deny FMLA designation for the absence. The employer should send a written reminder before the deadline and document it. Denying FMLA coverage without a reminder notice on record can still create interference exposure, even if certification was late.

FMLA applies to private employers with 50 or more employees within 75 miles of the employee's worksite. Businesses with fewer than 50 employees are not covered by federal FMLA. However, many states have their own family and medical leave laws with lower employer-size thresholds — some covering employers with as few as five employees. Always check the applicable state law before concluding FMLA does not apply.

An employer cannot deny leave to an eligible employee for a qualifying reason — doing so constitutes FMLA interference and is unlawful. An employer can deny a specific leave request if the employee is not eligible, the reason does not qualify, or required documentation is not provided. Operational need or staffing inconvenience is not a valid ground for denial.

FMLA leave is a federally mandated, job-protected entitlement for qualifying employees and qualifying reasons. A personal leave of absence is a company-granted, discretionary absence that does not carry the same job-restoration guarantee unless the employer's policy provides one. FMLA leave runs for up to 12 weeks; personal leave duration depends entirely on company policy. This letter covers FMLA-designated leave only.