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How to Write a Legal Memorandum: Template + IRAC Example

Build a legal memorandum with an adaptable outline, a facts checklist, and a short IRAC exercise. Check the sources and prepare the draft for review.

Whisperit

Whisperit Team

Legal Writing & Drafting · July 2026

Could a better legal memo structure change the outcome of your next case?

The legal memorandum remains one of the most important documents a lawyer produces, not because it's formal, but because it forces rigorous thinking. A well-crafted memo is how associates demonstrate their analytical ability, how partners communicate strategy, and how firms document their reasoning.

Despite the rise of AI-assisted drafting and digital communication, knowing how to write a legal memorandum that is clear and structured is more valuable than ever. Clients expect faster, clearer answers; a strong memo framework delivers both.

A legal memorandum template you can adapt

Use this working outline to organise your analysis. Confirm the format expected by your supervising lawyer, firm, or course, and adapt it to the relevant jurisdiction. A template supplies structure; it does not establish the legal answer.

CUNY’s law-office memo guidance includes a separate facts section and emphasises objective analysis. Monash’s examples also show how the audience and assignment affect the document.

MEMORANDUM — WORKING DRAFT
To: [Reviewer and role]
From: [Author]
Date / version: [Date and version]
Matter / subject: [Matter identifier and focused question]
Jurisdiction and research cut-off: [Confirm before analysis]

QUESTION
[State the issue neutrally and identify the material facts.]

SHORT ANSWER
[Give the current assessment, its main reason, and any important uncertainty.]

FACTS AND SOURCES
[Set out the relevant facts. Identify the document, page, or other source for each.]
[Separate verified facts, disputed assertions, assumptions, and missing evidence.]

DISCUSSION — REPEAT FOR EACH ISSUE
Issue: [Question to resolve]
Rule: [Applicable authority, citation/pinpoint, jurisdiction, and date checked]
Application: [Explain how the authority applies to the facts, including contrary evidence]
Counterargument: [Set out the strongest competing interpretation and assess its weight]
Conclusion: [Provisional answer and remaining uncertainty]

NEXT STEPS AND REVIEW
[Further research or documents required, owner, and target date]
[Reviewer comments and approval status]

Facts: make the memo traceable to the file

Before writing the discussion, identify where each material fact comes from. Keep a short working record with these fields: fact; source document; page or paragraph; agreed or disputed; and follow-up needed. A reviewer should be able to distinguish the evidence from your assumptions without reconstructing the entire file.

For a practical starting point, use our guide to organising legal case files.

A short IRAC exercise

Fictional internal-policy exercise, not a statement of law. A made-up office policy says that a draft may be marked “reviewed” only after a named reviewer has checked its sources and recorded approval. The example illustrates the structure of reasoning without inventing a court decision.

  • Issue: Can draft v2 be marked reviewed?
  • Rule: The fictional policy requires both source checking and recorded approval.
  • Application: The activity log records a source check, but no approval. A colleague says approval was given verbally; that assertion needs confirmation and does not itself supply the required record.
  • Conclusion: Keep v2 in review until the reviewer’s decision is recorded.

In a legal memo, replace the exercise’s invented policy with verified legal authority and apply it to the actual matter. Columbia Law’s guide to organising a legal discussion explains the analytical structure.

Before you send the draft for review

  • Does the question match the analysis?
  • Can each material fact be traced to a source?
  • Have you checked the authority and its relevance to the jurisdiction?
  • Does the discussion address competing arguments fairly?
  • Are assumptions and unresolved questions visible?
  • Is the next action assigned to a person?

For the research stage, see our overview of legal research methods. If you use AI to prepare a first draft, retain responsibility for checking every factual and legal statement.

The Modern Role of the Legal Memo

Legal memos serve multiple functions: they document legal research, provide analysis for client counselling, brief senior attorneys on complex issues, and create a written record of legal positions. They are simultaneously a thinking tool and a communication tool. Tight research underpins all of it; these AI legal research prompts help you gather authority faster before you start writing.

In the modern law firm, memos also increasingly serve as inputs to AI systems: structured analysis that can be referenced, retrieved, and built upon in future matters.

  • Documenting legal research and analysis for the file.
  • Advising clients on legal options and risks.
  • Briefing supervising attorneys on complex issues.
  • Creating a written record of legal positions taken.

Core Components of a Legal Memorandum

A properly structured legal memorandum follows a consistent format that enables efficient reading and clear communication. Each section serves a distinct purpose and should be drafted with precision.

The standard format has remained largely consistent for decades because it works: it guides the reader logically from question to conclusion.

The Heading

The heading identifies the memo's key parameters: To (recipient), From (author), Date, Re (subject matter). The 'Re' line should be specific enough to identify the exact legal question, not just 'Contract Issue' but 'Enforceability of Non-Compete Clause Under California Law.'

A vague heading sets a poor tone and makes the memo hard to retrieve and reference later.

The Question Presented

The Question Presented (QP) is a precise statement of the legal issue to be analysed. It should be drafted in a way that foreshadows the answer: specific enough to be meaningful, broad enough to cover the key issues.

A well-drafted QP does two things: it disciplines the author's analysis and it immediately signals to the reader exactly what ground the memo will cover.

Brief Answer and Discussion

The Brief Answer directly answers the Question Presented in 2-4 sentences. It should never be evasive; it is the memo's thesis, stated up front.

The Discussion section is where the analytical work lives. It applies the relevant law to the specific facts using the IRAC method (Issue, Rule, Application, Conclusion) or a variation suited to the memo's complexity. This section should be organised by issue, with clear headings for each sub-issue.

  • State the controlling legal rule clearly before applying it.
  • Use the specific facts of the matter, not hypotheticals, in the application.
  • Address the strongest counterarguments fairly, including where they weaken the proposed conclusion.
  • Organise by legal issue, not chronologically.

Conclusion and Practical Recommendations

The Conclusion summarises the memo's findings and, crucially, offers practical recommendations. A memo that ends at 'the law is unclear' without guidance leaves the client no better off than before.

Strong conclusions tell the reader what to do next: recommend a course of action, identify the risks of each option, and flag any additional information needed to refine the analysis.

If memos eat too much of your week, dictating the analysis and letting AI handle structure can cut drafting time dramatically. See Whisperit's pricing for plans built for legal teams.

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