How Do You Start A Memo? | The First Lines That Get Read

A memo is a workhorse document. It moves decisions, records direction, and keeps teams aligned when a chat message would get lost.

When a memo lands in someone’s inbox, the first few lines decide its fate. If the opening feels vague, the reader skims. If it feels clear, they keep going.

This article shows exactly how to start a memo so your reader knows three things right away: what this is about, why they should read it, and what you want them to do next.

What a strong memo opening needs

Most memo problems aren’t “writing” problems. They’re clarity problems. A solid start has a small set of parts, in a predictable order.

Put the header to work

The header lines act like labels on a file folder. They help the reader sort the message before they read a single paragraph.

• To: The person or group who needs to act or stay informed.
• From: The writer (and team, if that helps context).
• Date: The day you sent it.
• Subject: A specific line that says what the memo is about.

Many style guides stick to this core. Purdue’s memo formatting guidance is a handy reference when you want a standard layout that readers recognize. Purdue OWL memo format.

Write a subject line that earns the next line

Your subject line should read like a mini headline. Skip fluffy labels. Name the topic and the trigger.

• Weak: “Update”
• Better: “Lab schedule change for March 4–8”
• Better: “Request: approval for new tutoring hours”

If the memo is about a decision, say “Decision” and name the decision. If it’s a request, say “Request” and name the ask.

Open with a purpose sentence

The first sentence after the header is your purpose sentence. It should do one job: say why the memo exists.

Keep it plain. Use a simple verb. “This memo requests…”, “This memo confirms…”, “This memo announces…”.

Add an action line when readers need to do something

If you need action, don’t bury it. Put it in the first paragraph as a clear next step with a date.

Try: “Please reply by Friday, March 1, with…” or “Send your final edits by 5 p.m. on Tuesday.”

How Do You Start A Memo? in real layouts

Here are three clean starter patterns you can copy. Each one uses the same bones: header, purpose, then action or context.

Pattern 1: Request memo

Purpose sentence: “This memo requests approval to extend library hours during finals week.”

Action line: “Please approve or decline by Wednesday, April 10, so staffing can be confirmed.”

Context line: “Last semester, late-hour attendance averaged 38 students per night.”

Pattern 2: Announcement memo

Purpose sentence: “This memo announces the new process for submitting absence notes.”

Action line: “Starting Monday, all notes must be uploaded to the portal within 48 hours.”

Context line: “This change reduces back-and-forth email and keeps records in one place.”

Pattern 3: Decision memo

Purpose sentence: “This memo confirms the decision to adopt the updated grading rubric for ENG101.”

Action line: “Instructors should use the new rubric for all assignments submitted on or after September 1.”

Context line: “The revision aligns rubrics across sections and reduces regrade requests.”

Choose the right opening verb

Opening verbs set the tone. They also tell readers what kind of memo this is. Pick one that matches the goal.

• Requests when you need approval, input, or a resource.
• Announces when you are sharing a change, date, or policy.
• Confirms when you are recording a decision already made.
• Summarizes when you are capturing meeting outcomes and next steps.
• Explains when you must clarify a process or reasoning.

Stick to one main verb in the first sentence. If you mix verbs, readers can’t tell if you want action or you’re just sharing news.

Build the first paragraph with a tight three-part formula

After the purpose sentence, you have a choice: action first, or context first. The best pick depends on the reader’s role.

Action first when the reader is busy

If the reader owns the decision or task, lead with the action line. Then add only the context they need to do it well.

This style works well for managers, instructors, team leads, and anyone scanning between meetings.

Context first when the reader needs grounding

If the reader is not close to the topic, start with one short line of context. Then state the action.

Keep the context factual. Save deeper reasoning for later sections.

Use plain language

Plain language isn’t “dumbing down.” It’s writing so the reader gets it on the first pass.

Digital.gov’s plain language guides give practical rules for clarity, like using common words and putting the main point up front. Plain Language Guide Series.

Common memo openings that lose readers

Many memo starts fail in the same ways. Fixing them is mostly about trimming and choosing clearer nouns and verbs.

Slow throat-clearing

Skip long warm-ups like “I am writing to inform you…” or “This is to let you know…” They add length without meaning.

Write the meaning instead: “This memo announces…” or “This memo requests…”.

Hidden ask

If you need approval, don’t wait until paragraph four. Put the ask in the first paragraph, then back it up with facts.

Unclear subject lines

A subject like “Memo” or “Update” forces the reader to guess. A subject like “Decision: printer budget for Q2” tells them what’s inside.

Too many names in the To line

If you send it to 25 people, no one feels responsible. If you can, list the owner first, then add “Cc:” for others who should stay in the loop.

Table: Opening lines that fit common memo situations

Situation	Purpose sentence starter	Action line you can add
Requesting approval	This memo requests approval to…	Please approve or decline by [date].
Asking for feedback	This memo requests feedback on…	Send comments by [date] so revisions can be finalized.
Announcing a change	This memo announces a change to…	The new process starts on [date].
Confirming a decision	This memo confirms the decision to…	Teams should begin using the new approach on [date].
Meeting recap	This memo summarizes outcomes from…	Owners should complete action items by [date].
Policy reminder	This memo reminds staff that…	Please follow the policy starting immediately.
Sharing a timeline	This memo outlines the timeline for…	Mark these dates on your calendar by [date].
Reporting status	This memo reports the current status of…	Reply with blockers by [date] if you see issues.

Write the opening for the reader you have

Two readers can receive the same memo and need different openings. One cares about action and timing. Another cares about risks and constraints.

Before you write the first sentence, answer two questions:

• Who owns the next step?
• What does that person need in the first 10 seconds?

When you’re writing to a supervisor

Lead with the ask and the deadline. Put your strongest supporting fact in the next line. Keep the first paragraph under five lines.

If money or staffing is involved, name the exact number and the date range early.

When you’re writing to peers

Peers often want a clear process. Start with the purpose, then list the next steps in a short set of bullets. Save details for later sections.

When you’re writing to a mixed group

Mixed groups need roles. Put the owner in the first paragraph: “Jordan will compile responses.” Then name what each group should do.

If you can’t fit roles cleanly, add a short “Action owners” bullet list right after the purpose sentence.

Make your first paragraph easy to scan

Most readers scan memos on a phone. A dense paragraph feels harder than it is, so you want clean visual cues.

• Keep sentences short.
• Use one idea per sentence.
• Prefer concrete nouns over abstractions.
• Use dates, times, and quantities when they matter.

Use bullets after the opening when there are three or more items

Bullets help readers spot tasks and deadlines. Put bullets right after the opening paragraph when you have several steps.

Start each bullet with a verb: “Submit,” “Review,” “Approve,” “Send.”

Table: A memo opening checklist you can run in two minutes

Check	What to look for	Fix if missing
Subject line is specific	Names the topic and the trigger	Add “Request,” “Decision,” or a date range.
Purpose sentence is first	Starts with one clear verb	Rewrite the first line to “This memo [verb] …”.
Action is visible	Reader can spot the ask fast	Add a “Please…” line with a deadline.
Owner is named	Someone is responsible for next steps	Name a person or role in the first paragraph.
Scope is clear	Dates, teams, or locations are defined	Add the boundaries in one sentence.
Language is plain	Few acronyms, short words	Swap jargon for everyday terms.

Starter templates you can paste and fill

Use these as fill-in frames. Replace the brackets with your details, then read the opening out loud once. If it sounds like a person talking, you’re close.

Template for a request memo

Subject: Request: [what you need] by [date]

Opening: “This memo requests [decision or resource]. Please reply by [date/time]. The request covers [scope].”

Template for a decision memo

Subject: Decision: [what was decided]

Opening: “This memo confirms the decision to [decision]. The change takes effect on [date]. Owners are [names/roles].”

Template for an announcement memo

Subject: Change: [process or rule] starting [date]

Opening: “This memo announces [change]. Starting [date], [new behavior]. If you have questions, send them to [name/role] by [date].”

Mini rewrites that turn a weak start into a clear start

These quick swaps show the kind of edit that helps most memos. Cut filler phrases. Put the verb first. Name the action.

Weak start: “I’m writing to let you know about the new schedule.”

Clear start: “This memo announces the new schedule for [team] starting [date].”

Weak start: “There have been some issues with attendance lately.”

Clear start: “This memo requests input on attendance issues and proposes two fixes for review by [date].”

Weak start: “Please see the attached document.”

Clear start: “This memo requests review of the attached draft policy. Please send edits by [date].”

Final pass before you send

Give the top of your memo a fast audit. You’re checking for clarity, not perfection.

• Read only the Subject line and the first paragraph. Can a reader tell what to do?
• Circle the first verb. Does it match the memo type?
• Underline the deadline. If there is action, is the deadline present?
• Delete one sentence that repeats the same idea.

Do that, and most memo openings stop feeling like “writing.” They start feeling like clear work.