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How to Write an Internal Memo with ChatGPT

Writing an internal memo is a delicate exercise that requires clarity, conciseness, and a tone adapted to your organization. ChatGPT can assist you at every step, from structuring ideas to finalizing the text. Whether you are announcing an organizational change, a company event, or a new policy, the AI helps you find the right angle, tone, and wording. This tutorial guides you step by step to produce a professional, engaging internal memo ready for distribution. You will learn how to brief ChatGPT effectively, iterate over versions, and tailor the message to your internal audience.

Prerequisites

  • 1.A ChatGPT account (free or Plus)
  • 2.Key information to communicate (subject, dates, people involved)
  • 3.A clear idea of the target audience (all employees, a department, management)
  • 4.The desired tone (formal, semi-formal, informal)

Steps

1

Define the Context and Objective of the Memo

Before soliciting ChatGPT, gather the essential elements: what is the topic, why is this memo necessary, who are the recipients, and what action do you expect from them. The more precise your brief, the more usable the result will be from the first generation.

You are an expert in internal corporate communication. I need to write an internal memo about [SUBJECT]. Here is the context:

  • Company: [COMPANY NAME AND SECTOR]
  • Recipients: [TARGET AUDIENCE]
  • Objective: [INFORM / MOTIVATE / REASSURE]
  • Key information: [IMPORTANT DETAILS]
  • Desired tone: [FORMAL / SEMI-FORMAL / INFORMAL]
  • Planned distribution date: [DATE]

First, propose a structured outline for this memo before writing it.

Tip: Replace each element in square brackets with your actual information. The more specific you are, the fewer iterations you will need.
2

Generate a First Version of the Memo

Once the outline is validated, ask ChatGPT to write the full memo. Specify the desired length and formatting elements (short paragraphs, bullet points, bolding key points). A good internal memo is typically between 200 and 400 words.

Perfect for this outline. Now write the full memo respecting these constraints:

  • Length: between 250 and 350 words
  • Structure: catchy subject line, contextualizing introduction, body with key information, conclusion with a clear call to action
  • Use short paragraphs (3-4 lines max)
  • Bold essential information (dates, locations, expected actions)
  • End with the contact person's details for questions
Tip: Always ask for a catchy subject line: it determines whether the memo will be read or ignored.
3

Adapt the Tone and Style

The first draft is rarely perfect in terms of tone. Read carefully and ask for adjustments. The tone must match your company's culture and the seriousness of the subject. A team building announcement doesn't have the same tone as a restructuring.

The tone is a bit too [FORMAL/INFORMAL/COLD/ENTHUSIASTIC]. Can you rewrite it by:

  • Adopting a more [WARM / PROFESSIONAL / DIRECT / EMPATHETIC] tone
  • Using 'we' instead of impersonal formulations
  • Adding a sentence that acknowledges [THE IMPACT ON TEAMS / THE COLLECTIVE EFFORT]
  • Keeping a consistent register from start to finish

Keep the structure and information, only change the style.

Tip: In internal communication, 'we' creates a sense of belonging. Avoid 'management decided' in favor of 'we decided together'.
4

Review and Enrich the Content

Ask ChatGPT to play the role of a critical reviewer. This step helps identify ambiguities, omissions, and formulations that could be misinterpreted. This is especially important for sensitive topics.

Now, review this memo as a critical reviewer and answer these questions:

  1. Are there any ambiguities or sentences that could be misinterpreted?
  2. Is any essential information missing (who, what, when, where, why, how)?
  3. Is the call to action clear and actionable?
  4. Does the memo anticipate the questions employees will ask?
  5. Propose a corrected version incorporating your recommendations.
Tip: For sensitive topics (restructuring, layoffs, major changes), also ask ChatGPT to anticipate negative reactions and suggest more reassuring formulations.
5

Finalize and Prepare Distribution

Last step: create derivative versions if necessary (summary for Slack, version for intranet, manager version with talking points). ChatGPT can also help you prepare an anticipated FAQ to accompany the memo.

From this finalized memo, generate:

  1. A short version (80 words max) for distribution on [SLACK / TEAMS / INTRANET]
  2. An alternative email subject line (3 proposals)
  3. An FAQ of 4-5 anticipated questions and answers that employees might ask
  4. A short brief for managers (5 lines) with key points to relay orally to their teams
Tip: Always distribute the memo across multiple channels (email + instant messaging + intranet) to maximize reach. Adapt the format to each channel.

Common mistakes to avoid

  • ✗Giving ChatGPT a too vague brief (no context, no target audience, no desired tone), which produces a generic unusable text
  • ✗Using the first draft without review or adaptation, resulting in an artificial-toned memo that doesn't match the company culture
  • ✗Forgetting the call to action: a memo without clear instructions leaves employees uncertain about what is expected of them
  • ✗Neglecting the email subject line: a flat subject like 'Important Information' will be ignored, unlike a specific and engaging one
  • ✗Not anticipating employees' questions, which generates anxiety and rumors, especially on sensitive topics

FAQ

Can ChatGPT respect my company's communication charter?
Yes, provided you give it concrete examples. Paste one or two previous memos into the conversation and ask it to analyze the style and then draw inspiration from it. With ChatGPT Plus, you can also create a custom GPT with your integrated communication guidelines.
How to handle memos on sensitive topics (layoffs, crises)?
ChatGPT is an excellent starting point to structure your ideas and find empathetic phrasing. However, for topics with high human impact, always have the text reviewed by an HR manager or a legal expert. Ask ChatGPT to adopt an empathetic tone and to anticipate employees' objections and concerns.
What is the ideal length of an internal memo?
Between 200 and 400 words for a standard email memo. Beyond that, the reading rate drops drastically. For complex topics requiring more details, favor a short memo with a link to a full document on the intranet. Ask ChatGPT to summarize if your text exceeds 400 words.

Related tutorials

How to write a professional email with ChatGPTHow to write meeting minutes with ChatGPTHow to create an internal newsletter with ChatGPT

How to use this prompt

  1. Copy the prompt with the button above.
  2. Paste it into ChatGPT, Claude or your favorite AI assistant.
  3. Replace the bracketed variables with your details, then refine the result.

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