A Client Asked for a Leave-of-Absence Letter. Now What?

If you’ve been practicing long enough, you’ve probably experienced it. Just as the session ends, a client mentions something important.

“My employer is asking for a letter.”

“My school needs documentation if I’m going to take a leave of absence.

Suddenly, what seemed like a routine session turns into a documentation question. How much information should you include? Do you need to provide a diagnosis? How detailed should the letter be? What exactly are you being asked to document?

Most therapists receive little formal training on writing leave-of-absence letters, yet these requests are a routine part of practice. Whether a client is requesting a leave from work, support for an FMLA application, time away from graduate school, or a temporary break from a training program, therapists are often asked to provide documentation supporting the need for time away from their responsibilities.

For many therapists, the uncertainty isn’t just about the letter itself. It’s about finding the balance between advocating for a client, protecting their privacy, and staying within the boundaries of their role.

That’s often what makes these requests feel more complicated than they actually are.

The good news is that effective leave-of-absence letters are usually much simpler than therapists expect.

Consider a graduate student whose anxiety has become so severe that they’re struggling to attend classes, complete assignments, and keep up with program expectations. The school may not need a detailed history of the student’s symptoms or treatment. What they often need is a clear explanation that the student’s current symptoms are significantly impairing their ability to function and that a leave of absence is clinically appropriate.

In fact, one of the biggest mistakes clinicians make is assuming they need to tell the client’s entire story. Most schools, employers, and programs aren’t looking for a detailed clinical history. They simply need enough information to understand how the client’s symptoms are affecting their ability to function and why a temporary leave of absence is clinically appropriate.

First Things First: Get Authorization

Before writing or sending any letter, obtain written authorization from the client.

Even if the letter contains minimal clinical information, it still involves the disclosure of protected health information.

The authorization should identify:

• Who will receive the letter
• What information may be disclosed
• The purpose of the disclosure
• Whether you have permission to communicate with the institution if follow-up questions arise

Whenever possible, disclose only the minimum information necessary to support the request.

Therapists sometimes feel pressure to provide extensive details in order to strengthen a client’s case. Ironically, more information isn’t always more persuasive. A concise letter that clearly explains the clinical concern is often far more effective than a lengthy summary of the client’s history.

If an institution later requests additional information, verify that the client’s authorization covers the requested disclosure before responding.

Establish Your Role

Once you’ve handled the authorization piece, it’s time to write the letter.

The first job is simple: establish who you are and your relationship to the client.

Include your name, credentials, licensure, practice name, contact information, and the date. You also want to establish your professional role immediately.

For example:

I am a licensed psychotherapist currently providing treatment to [Client Name].

This simple statement establishes your professional relationship and authority without disclosing unnecessary details.

Confirm the Treatment Relationship

Before discussing the recommendation itself, you’ll want to establish the treatment relationship.

This section is usually brief, but it matters. The reader needs to know that you’re speaking from an ongoing clinical relationship rather than a one-time interaction.

For example:

I have been treating this client since September 2025.

In most situations, there’s no need to include treatment frequency, therapeutic modality, or an extensive treatment history unless specifically requested.

Remember that the purpose of the letter isn’t to summarize therapy. The purpose is to communicate a clinical recommendation.

Explain the Clinical Concern

After establishing the treatment relationship, briefly explain the basis for your recommendation.

Depending on the client’s privacy preferences and the institution’s requirements, this statement can remain fairly broad.

For example:

The client is experiencing a mental health condition that is currently impairing their ability to fully participate in academic or occupational responsibilities.

Sometimes a more specific description of symptoms may be appropriate. However, before including additional clinical details, ask yourself whether they genuinely strengthen the recommendation or simply disclose more information than necessary.

Focus on Function, Not Diagnosis

This is the most important section of the letter.

Many therapists assume the institution wants to know the diagnosis. In reality, schools and employers are often more interested in understanding how symptoms are affecting the person’s ability to function.

This shift can sometimes feel counterintuitive because therapists are trained to think broadly. We listen for patterns, understand context, and hold the complexity of a client’s experience.

The audience reading this letter has a different task. They’re usually trying to answer a much narrower question: Is there a clinically supported reason this person needs time away from their responsibilities right now?

Rather than focusing primarily on diagnosis, describe the observable impact, such as:

• Difficulty concentrating
• Impaired executive functioning
• Reduced stamina
• Sleep disruption
• Panic symptoms
• Attendance difficulties
• Cognitive overload
• Difficulty meeting deadlines or maintaining workload demands

For example:

Current symptoms are impairing the client’s sleep, concentration, ability to sustain workload demands, attendance consistency, and overall functioning necessary for successful participation in academic or occupational responsibilities.

Notice that this statement provides meaningful information while preserving the client’s privacy.

A helpful way to think about this section is that you’re answering a simple question: Why is this person currently unable to meet the demands of work or school?

Say What You’re Recommending

Many therapists are comfortable describing symptoms but become less confident when it comes to making recommendations.

The purpose of the letter, however, is to communicate your professional opinion. If you believe a leave of absence is clinically appropriate, say so directly.

For example:

At this time, I am recommending a leave of absence from academic responsibilities to allow for treatment, stabilization, and recovery.

Avoid vague language that leaves the reader guessing about your clinical opinion.

How Long Should the Leave Be?

Whenever possible, provide a recommended timeframe.

Examples might include:

• Leave through the end of the current semester
• A 12-week leave period
• Leave beginning immediately, with reassessment after a specified timeframe

If the duration remains uncertain, it’s perfectly acceptable to state that the recommendation may need to be reevaluated based on treatment progress.

Consider Including a Return-to-Function Statement

Many institutions appreciate understanding that the purpose of the leave is to support recovery and eventual return to responsibilities.

For example:

With appropriate treatment and reduced stress, I anticipate the client may be able to return to previous responsibilities following the recommended leave period.

Notice the wording here. You’re offering a clinical expectation, not a guarantee. Therapists can provide informed opinions about recovery. We can’t promise outcomes.

Should You Include a Diagnosis?

This is probably one of the most common questions therapists ask when writing these letters.

Many clinicians assume a diagnosis must be included for the request to be taken seriously. In many situations, that’s simply not true.

There are several reasons therapists choose not to include diagnoses:

• Protecting client privacy
• Reducing stigma
• Avoiding unnecessary disclosure
• Recognizing that diagnosis alone doesn’t establish impairment

A diagnosis may be appropriate if it’s specifically requested or if including it meaningfully strengthens the recommendation.

For example:

The client meets criteria for Major Depressive Disorder and Generalized Anxiety Disorder.

There’s rarely a need to provide extensive diagnostic justification or symptom histories.

The Information to Leave Out

Therapists are trained to understand the full complexity of a client’s story. Letter writing requires a slightly different skill.

In most cases, the challenge isn’t figuring out what to include. It’s deciding what can be left out.

One of the most common mistakes therapists make is including too much information.

Generally avoid including:

• Trauma histories
• Family histories
• Medication details unless directly relevant
• Psychotherapy process notes
• Detailed risk assessments
• Highly personal disclosures
• Speculative statements

A leave-of-absence letter isn’t a clinical summary.

The goal isn’t to demonstrate the severity of suffering through personal details. The goal is to explain functional impairment and communicate a clinically supported recommendation.

Less Is Often More

The strongest leave-of-absence letters are professional, confident, and medically grounded.

They’re also usually shorter than therapists expect.

Most employers, schools, and training programs review many similar requests. A concise, well-organized letter is often more persuasive than several pages of clinical explanation.

In most cases, a single page is sufficient.

Can Therapists Charge for Writing These Letters?

If you’ve ever spent an hour writing a carefully worded letter and wondered whether that time should be billable, you’re not alone.

Documentation requests often feel like a gray area, particularly in private practice.

Many therapists struggle with this because they genuinely want to be helpful. At the same time, letter writing requires professional judgment, takes time away from clinical work, and creates additional responsibility.

For many therapists, charging for these letters is appropriate.

Writing support letters requires clinical judgment, documentation time, review of records, and professional liability. These activities often fall outside the scope of a standard psychotherapy session.

If you charge for letter-writing services, make sure your policy is clearly outlined in your informed consent and practice policies. Clients should understand:

• Whether fees apply and what those fees are
• The types of letters you charge for
• Expected turnaround times

Clear policies help prevent misunderstandings and make these requests easier to manage when they arise.

Back to the Doorknob Statement

The next time a client reaches for the doorknob and says, “Oh, and I need a letter for work,” don’t panic or overthink it.

You don’t need to tell the client’s entire story. You don’t need to include every symptom, every challenge, or every detail from treatment.

What you do need is a clear understanding of how the client’s symptoms are affecting their ability to function and a professional recommendation about what support they need right now.

In most cases, that’s exactly what a school, employer, or training program is looking for.

While writing leave-of-absence letters may never be anyone’s favorite part of practice, they’re a way we advocate for our clients outside the therapy room.

And sometimes, beyond helping a client access a leave of absence, the letter communicates something equally important: that their struggles are real, that their symptoms are having an impact, and that someone understands what they’re carrying.

A letter can’t solve the underlying problem. But it can help a client feel seen, supported, and understood during a difficult period of their life.