## Audit Strategy vs Audit Plan: Key Distinctions
| Aspect | Audit Strategy | Audit Plan |
|---|---|---|
| Nature | Broad, overall approach | Detailed implementation document |
| Focus | Scope, timing, direction | How strategy will be executed |
| Sequence | Established first | Developed after strategy |
| Level of detail | Less detailed | More detailed |
---
## Can Planning Decisions Change?
YES — The auditor shall update and change the overall audit strategy and audit plan as necessary when:
1. Unexpected events occur during the audit
2. Changes in conditions arise
3. Audit evidence obtained differs significantly from what the auditor expected when planning the procedures
> This is not optional — if circumstances change materially, the plan must be revised.
---
## Responsibility
The responsibility for establishing the overall audit strategy and planning for the audit lies with the auditor (engagement partner) only.
---
## Documentation Requirements
The auditor shall document:
1. The overall audit strategy
2. The audit plan
3. Any significant changes made during the audit engagement to the strategy or plan
4. The reasons for such changes
> The audit trail of why changes were made is as important as the changes themselves.