Memo Structure and the Four-Field Header

The business memo has a structure that has persisted because it works. The four-field header — To, From, Date, Subject — establishes immediately who is responsible for the communication, who receives it, when it was issued, and what it concerns. These four fields are not administrative formalities. They establish the memo's place in the organizational record. A memo missing any of these fields is not retrievable in context — it cannot be cited, it cannot be attached to a decision record, and it cannot be acted on by someone who did not receive it originally.

MEMORANDUM

TO:     [Named recipient(s) or defined group]
FROM:   [Name, Title]
DATE:   [Full date — not just month and day]
RE:     [Subject — specific enough to function as a title]
CC:     [If applicable]

CLASSIFICATION: [Confidential / Internal / For Distribution]

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SUMMARY / RECOMMENDATION (1 paragraph)
[State the purpose, decision, or position immediately.
What is this memo establishing?]

BACKGROUND (as needed)
[Context required to evaluate the memo — not history,
not narrative, not scene-setting. Essential context only.]

ANALYSIS / RATIONALE
[The reasoning. Options considered if relevant.
Why this position over alternatives.]

REQUIRED ACTION / NEXT STEPS
[What the recipient is expected to do, by when.
Or: what the memo establishes and what happens next
in the process it documents.]

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[Signature / initials if signed formally]