How do you write a leave of absence email?

State that you're requesting a leave of absence, the reason category (medical, parental, personal, family), and your expected start date in the first paragraph. You don't need to disclose medical or personal details in the email itself; HR will typically direct you to the correct documentation process separately.

Do you need to explain why you're taking a leave of absence?

You need to state the general category (medical, parental, family, personal) so HR can apply the correct policy, but you don't need to disclose specific medical or personal details in the email. Detailed documentation, if required, is usually handled through a separate, more private process.

How is a leave of absence different from PTO?

PTO is routine, planned time off, vacation or personal days, usually approved by a manager alone. A leave of absence is longer, often tied to a medical, family, or parental situation, and usually involves HR, formal documentation, and sometimes legal protections like FMLA. See our guide to PTO request emails if that's what you actually need.

Should you send a leave of absence request to your manager or to HR?

Both, typically. Notify your direct manager so they can plan for your absence, and go through HR or your official leave process for the formal request, documentation, and any required paperwork. Company policy on this varies, so check your employee handbook for the specific process.

Leave of Absence Email: How to Write One (Employee and HR Templates)

A leave of absence email needs to do less than most people think. State that you're requesting a leave, the general category (medical, parental, family, or personal), and your expected timeline. The specific medical or personal details almost never belong in the email itself, that's what your company's formal leave process and HR documentation are for.

This guide covers extended leave: medical, parental, family, or personal leave that typically involves HR and formal documentation. For routine vacation or personal days, see PTO request emails instead; that process and tone are simpler and don't require HR involvement.

Note: This is general guidance, not legal advice. Leave eligibility, required documentation, and protections (including FMLA and state-specific leave laws) vary by employer, location, and situation. Check your employee handbook and talk to HR about the specific process that applies to you.

What a Leave of Absence Email Needs

State the category, not the details. "I need to request a medical leave of absence" is enough. You don't need to explain the diagnosis or situation in the email; HR will direct you to whatever documentation process applies.

Give your best-estimate timeline. An expected start date and, if known, an expected return date or duration. It's fine to note that the return date is an estimate if your situation is uncertain.

Ask about the process, don't assume you know it. Every company's leave process is different. Asking directly what paperwork or next steps are needed is more useful than guessing.

Notify your manager separately from the formal HR request. Your manager needs to know you'll be out and roughly for how long, for planning purposes. HR needs the formal request and documentation. These are usually two different messages.

Leave of Absence Templates: Employee Side

Initial request to HR

Subject: Requesting a leave of absence

Hi [HR contact name],

I need to request a [medical / parental / family / personal] leave of absence, starting on or around [date]. [If known: "I expect this to last approximately [duration]," otherwise: "I don't yet have a firm return date and will update you as I know more."]

Could you let me know what documentation or next steps are needed on my end?

[Your name]

Notifying your manager

Shorter and less formal than the HR request; focused on the practical impact to your team.

Subject: I'll be out on a leave of absence starting [date]

Hi [Manager name],

I wanted to let you know directly that I'll be starting a leave of absence on [date]. I'm handling the formal request with HR separately. [Coverage plan or handoff notes, if applicable.]

Happy to talk through the handoff before I'm out.

[Your name]

Extending an existing leave

Subject: Extending my current leave of absence

Hi [HR contact name],

I'm writing to request an extension of my current leave, originally expected to end [original date]. [New expected return date, or "I don't yet have a firm new date."]

Please let me know if additional documentation is needed to process the extension.

[Your name]

Returning from leave

Subject: Returning from leave on [date]

Hi [Manager name] and [HR contact name],

I'm confirming my return date of [date]. Please let me know if there's anything I need to complete beforehand or on my first day back.

[Your name]

Leave of Absence Templates: HR and Manager Side

Acknowledging the request

Subject: Re: Requesting a leave of absence

Hi [Name],

Thanks for letting us know. I've started the process on our end. [Specific next step, e.g., "You'll receive a form from [system/provider] within the next few business days."]

Please reach out if you have any questions in the meantime, and take care of what you need to.

[HR contact name]

Manager acknowledging and confirming coverage

Subject: Re: I'll be out on a leave of absence

Hi [Name],

Thank you for letting me know, and for flagging it directly. We'll work out coverage for [specific responsibilities] before you're out. Focus on what you need to; we'll manage on this end.

[Manager name]

Common Mistakes

Disclosing more medical or personal detail than necessary. The email doesn't need to carry the full story. State the category, let the formal process handle documentation.

Sending the request only to your manager. A manager can plan around your absence, but usually can't process the formal leave, eligibility, or documentation. That typically requires HR.

Waiting until the last possible day to notify anyone. Even when the underlying situation is sudden, notifying HR and your manager as early as realistically possible gives them more room to plan and reduces stress on your end too.

Assuming your company's process is the same as somewhere else you've worked. Leave policies, especially around FMLA eligibility and paid versus unpaid leave, vary significantly. Ask rather than assume.

For routine time off, see PTO request emails. For the broader HR communication workload this sits inside, see how ForthWrite works for HR and People Ops.

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