Audit Planning Memorandum

The audit planning memorandum (also called the audit plan or planning summary) is the strategic foundation of an audit engagement. It documents the auditor's understanding of the client and the approach to the audit.

Components of a Planning Memorandum

1. Entity Overview

• Business description and operations
• Industry and competitive environment
• Regulatory and legal considerations
• Organizational structure and governance
• Key management personnel

2. Risk Assessment Summary

• Significant risks of material misstatement
• Fraud risk factors identified
• Going concern assessment
• Areas requiring special audit consideration

3. Materiality

• Overall materiality calculation
• Performance materiality
• Specific materiality (if applicable)
• Benchmark and rationale

4. Audit Strategy

• Overall approach (substantive vs. combined)
• Reliance on internal controls
• Use of specialists or experts
• Involvement of component auditors

5. Staffing and Timing

• Team composition and roles
• Interim fieldwork dates
• Year-end fieldwork dates
• Report delivery timeline
• Key meetings and deadlines

6. Key Audit Areas

• Significant account balances
• Complex transactions
• Accounting estimates
• Related party considerations

7. Communication Plan

• Client management contacts
• Audit committee communication
• Internal quality reviews
• Reporting deadlines

Why the Planning Memo Matters

For the Engagement Team

• Shared understanding of client risks and approach
• Clear roles and responsibilities
• Efficient allocation of effort

For Quality Control

• Demonstrates compliance with planning standards
• Facilitates engagement quality review
• Supports partner oversight

For the Client

• Transparent communication of audit approach
• Alignment on timing and expectations
• Basis for discussing fees

Best Practices

1. Complete early: Finalize before fieldwork begins
2. Involve the whole team: Ensure all members understand the plan
3. Update as needed: Revise when new information emerges
4. Link to procedures: Connect risks to specific audit programs
5. Review prior year: Build on previous engagement experience
6. Use templates: Standardize format across engagements