A Beginner's Guide to Writing a Memo: Format, Tone and Worked Examples

A memo is the quiet workhorse of workplace writing. It is not a report, not an email chain, and not a place for throat-clearing. It is a short, structured message that tells a specific group of people what they need to know, why it matters, and what happens next. Get the format right and the tone calm, and a memo can settle a question in thirty seconds rather than sparking three days of replies.

What a memo is actually for

Memos work best for internal messages with a clear audience and a clear purpose. A change to the holiday booking system. A new sign-in process for the loading bay. A reminder that timesheets are due a day early this month. Anything that would otherwise be asked about five times in the kitchen.

They suit situations where you need a written record. An email can do that too, but email is easily buried and often written in a rush. A memo has structure, which signals that the information is deliberate and worth keeping.

What memos are not good for: long arguments, personal feedback, or anything confidential. If your memo runs past two pages, you are probably writing a report. If it names one person's performance, you want a private conversation instead.

The standard memo headings

Most organisations expect the same few fields at the top. They exist so a reader can work out within seconds whether the memo applies to them.

• To: the group or named individuals. Be specific: "All warehouse staff" or "Team leaders, Customer Service". Avoid "Everyone" unless it genuinely means everyone.
• From: your name and, if it helps, your role or team.
• Date: the day you send it. Write it in full to avoid confusion between day and month.
• Subject: a short line that says what the memo is about and, where possible, what action follows. "New fire drill procedure – practice run on 14 March" beats "Fire safety".

Some workplaces add a cc line for people who need to know but are not the main audience, or a reference number for audit trails. Add those if your team uses them. Otherwise, keep the header lean.

Under the header, the body usually follows three short parts: a statement of the situation, the detail that matters, and the action required. You do not need to label them with subheadings for a short memo, though you can if the memo is longer.

Tone: plain English, no padding

The best memos read as though a sensible colleague is explaining something clearly. That means short sentences, active verbs, and no dressing up.

Compare these two openings:

It has come to our attention that there has been some inconsistency regarding the completion of the weekly compliance documentation, and it would be appreciated if colleagues could ensure that all relevant fields are populated going forward.

Weekly compliance forms are being sent back incomplete. Please check all fields before you submit yours on Friday.

The second is shorter, easier to act on, and far less annoying. Write the plain version first and you will rarely need a second draft.

A few habits worth building

1. Lead with the point. If the change takes effect on Monday, say so in the first sentence.
2. Use "you" and "we" rather than "staff" and "personnel". Memos are written by people to people.
3. Cut adverbs. "Please submit by noon" needs no "kindly" or "urgently".
4. Read it aloud. Anything you would not say out loud can usually go.
5. Keep it to one page where you can. Two pages is your ceiling, not your target.

Length matters because attention is short. A one-page memo with three bold points will be read properly. A two-page memo with no structure will be skimmed and then queried.

Worked example: a staff update

Here is a memo for a routine operational change. Notice how little it says, and how much it covers.

To: All staff, Riverside office
From: Priya Raman, Office Manager
Date: 6 May 2025
Subject: New kitchen rota starts Monday 12 May

The kitchen is being cleaned by the same three people every week, and it is not sustainable. From Monday 12 May, cleaning duties will rotate across all teams on a four-week rota.

The rota is pinned to the kitchen noticeboard and saved on the shared drive. Each team is responsible for one week: wipe surfaces, empty the fridge on Friday, and put the bins out. A checklist is on the wall by the sink.

If your team cannot cover its week, swap with another team and let me know by email. Please do not leave it until Friday afternoon.

Three paragraphs. One action. The reader knows exactly what changes and when.

Worked example: a policy change

Policy memos need a little more care, because readers will want to know why and what it means for them. Give the reason, the rule, and the date it starts.

To: All sales staff
From: Daniel Okafor, Head of Sales
Date: 3 September 2025
Subject: Discount approvals move to the new portal from 1 October

From 1 October, all discounts above 10 per cent must be requested through the approvals portal rather than by email. This gives us a clear record of who approved what, which we currently cannot produce when finance asks.

What changes for you:

• Log the request in the portal before you confirm anything with the customer.
• Attach the quote and a one-line reason for the discount.
• Approvals come back within one working day.

Requests sent by email after 30 September will be returned with a link to the portal. Training sessions run on 24 and 26 September; book through the sales inbox.

This version answers the obvious questions in advance: why the change, what I do differently, and what happens if I forget. That last point is worth including in almost every policy memo, because someone will forget.

Before you press send

Run through a short checklist. Is the subject line specific enough that someone could find this memo in six months? Have you named the audience accurately? Is the action in the first half of the memo, not buried at the bottom? Have you said what happens if someone does nothing?

Then check the details that cause quiet trouble: dates written in full, names spelled correctly, and no jargon that only your team understands. If the memo touches on contracts, pay, or legal obligations, have it reviewed by whoever handles those matters before it goes out, and point readers to the right person for questions.

Finally, save a copy somewhere sensible. Memos are a record, and the best time to find one is when someone asks what was agreed.

Photo: stevepb / Pixabay