Engagement Acceptance and Terms
Before any audit work begins, the auditor must decide whether to accept or continue an engagement and agree upon the terms with the client. This process is not merely administrative—it serves as a critical quality control safeguard that protects the public interest, the firm, and the profession. Getting engagement acceptance right reduces the risk of association with clients who lack integrity or present unmanageable risk.
This section covers the preconditions for an audit, the required elements of an engagement letter, considerations for recurring engagements, and the proper handling of changes in engagement terms.
The engagement acceptance process is governed by AU-C 210 (AICPA) for nonissuers and AS 2101 (PCAOB) for issuers. Both frameworks require auditors to establish that certain preconditions are met before accepting or continuing an audit engagement.
Engagement Acceptance Process
Engagement acceptance is a multi-step evaluation that occurs before the auditor agrees to perform the engagement. The auditor must assess both the client and the engagement itself.
Preconditions for an Audit
Before accepting an engagement, the auditor must determine that the following preconditions exist:
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Acceptable financial reporting framework — Management must prepare the financial statements using a framework that is acceptable (e.g., U.S. GAAP, IFRS, or a special-purpose framework). Without an appropriate framework, the auditor has no basis for forming an opinion.
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Management acknowledgment of responsibilities — Management must understand and agree to its responsibilities, which include:
- Preparing and fairly presenting the financial statements in accordance with the applicable framework
- Designing, implementing, and maintaining internal controls relevant to the preparation of financial statements that are free from material misstatement
- Providing the auditor with unrestricted access to all information, personnel, and records relevant to the audit
- Providing a management representation letter at the conclusion of the engagement
If management refuses to acknowledge its responsibilities—such as denying responsibility for internal controls or refusing to provide a representation letter—the auditor should not accept the engagement. These are non-negotiable preconditions.
Evaluating Whether to Accept the Client
Beyond the formal preconditions, the auditor performs additional evaluations:
- Integrity of management — The auditor considers the honesty and ethical values of those who own, manage, or govern the entity. Red flags might include prior regulatory sanctions, known fraud, or a reputation for aggressive financial reporting.
- Competence to perform — The firm must assess whether it has the staff, expertise, and resources to perform the engagement properly.
- Independence — The firm must confirm that it can comply with all applicable independence requirements.
- Communication with predecessor auditor — When a new auditor is being engaged to replace a predecessor, the successor auditor is required to communicate with the predecessor auditor before accepting the engagement (with the prospective client's permission). This helps the successor learn about matters such as disagreements with management, integrity concerns, or reasons for the change in auditors.
Example: BIF Partners is considering taking on Illini Entertainment as a new audit client. Before accepting, the engagement partner at BIF Partners contacts the predecessor auditor, who reveals that Illini Entertainment's management refused to adjust a material misstatement in the prior year. This information significantly influences BIF Partners' acceptance decision.
The successor auditor initiates communication with the predecessor. The client must grant permission for the predecessor to respond. If the client refuses permission, this is a significant red flag that the successor should carefully evaluate before accepting the engagement.
The Engagement Letter
The engagement letter is a written agreement between the auditor and the client that formalizes the terms of the engagement. It serves as a contract that documents mutual expectations and helps prevent misunderstandings.
Required Elements of the Engagement Letter
The engagement letter must include the following elements:
| Element | Description |
|---|---|
| Objective and scope | The objective of the audit (to express an opinion on the financial statements) and the scope of the engagement |
| Management's responsibilities | Acknowledgment that management is responsible for the preparation and fair presentation of the financial statements, internal controls, and providing access to all relevant information |
| Auditor's responsibilities | The auditor's responsibility to conduct the audit in accordance with GAAS (or PCAOB standards for issuers) and to express an opinion |
| Limitations of an audit | A statement that an audit provides reasonable, not absolute, assurance and that there is an unavoidable risk that some material misstatements may not be detected |
| Financial reporting framework | Identification of the applicable framework (e.g., U.S. GAAP) |
| Expected form and content of reports | A description of the expected form of any reports to be issued |
| Other relevant terms | Fee arrangements, timing, use of specialists, or other engagement-specific terms |
Example: Gies Co. hires a CPA firm to audit its annual financial statements. The engagement letter states that the audit will be performed in accordance with GAAS, that management is responsible for internal controls and the fair presentation of the financial statements under U.S. GAAP, and that the auditor will issue a written report upon completion. It also includes the agreed-upon fee schedule and a timeline for fieldwork.
The engagement letter should be signed by both parties—the auditor and an appropriate representative of the entity (typically a member of management or those charged with governance). The letter is generally addressed to those charged with governance.
Recurring Engagements
When the auditor has an ongoing relationship with a client and is engaged to perform the audit year after year, the terms of the engagement may not need to be renegotiated each year—but the auditor must still evaluate whether circumstances warrant a new or revised engagement letter.
When to Reassess Terms
The auditor should reassess the terms of a recurring engagement when:
- There is a change in senior management or those charged with governance
- There has been a significant change in the nature or size of the entity (e.g., a major acquisition or restructuring)
- There is a change in legal or regulatory requirements affecting the audit
- There has been a change in the financial reporting framework used by the entity
- There is any indication that management misunderstands the objective or scope of the audit
Even when none of these changes have occurred, the auditor may decide to send a reminder letter to the client reconfirming the existing terms. The key principle is that both parties should always have a clear, current understanding of the engagement terms.
Example: Kingfisher Industries has been audited by the same firm for five consecutive years. At the start of year six, the company completes a major acquisition that doubles its size and introduces a new operating segment. The auditor determines that a new engagement letter is appropriate to address the expanded scope and any additional complexities.
For recurring engagements, the auditor is not required to send a new engagement letter every year. However, the auditor must consider whether changes in circumstances warrant updating the terms. On the CPA exam, look for fact patterns involving changes in management, ownership, scope, or legal requirements.
Changes in Engagement Terms
Sometimes, after an engagement has been accepted, the client requests a change in the terms—most commonly a request to downgrade the level of service. For example, a client might ask the auditor to change from an audit to a review or a compilation.
Evaluating a Request to Change Terms
The auditor must evaluate whether there is a reasonable justification for the change. Legitimate reasons include:
- A change in circumstances that affects the need for the original service (e.g., a lender no longer requires audited financial statements)
- A misunderstanding about the nature of the original engagement
- A change in reporting requirements
When to Refuse a Change
The auditor should not agree to a change in engagement terms if:
- There is no reasonable justification for the change
- The auditor suspects the request is intended to limit the scope of the engagement or to avoid disclosure of a material misstatement
- The request appears motivated by a desire to prevent the auditor from discovering or reporting unfavorable information
Example: MAS Inc. is undergoing an audit and the auditor discovers significant irregularities in the revenue recognition process. Shortly after the auditor raises these concerns, MAS Inc.'s CFO requests that the engagement be changed from an audit to a compilation. Because the request appears to be motivated by a desire to avoid the auditor's further investigation, the auditor should refuse the change and consider the implications for the audit, including the possibility of withdrawal.
A client requesting a downgrade from an audit to a review or compilation immediately after the auditor discovers potential misstatements or fraud is a major red flag. The auditor should not comply with such a request and should consider withdrawing from the engagement entirely.
Consequences of Agreeing to a Change
If the auditor agrees to a legitimate change in terms:
- A new engagement letter must be issued reflecting the revised terms
- The auditor should not reference the original engagement or any procedures already performed under the original engagement in the new report
- Work already performed under the original engagement terms cannot be used as a basis for the lower level of service report
Summary
| Topic | Key Takeaway |
|---|---|
| Preconditions | Acceptable framework, management acknowledgment of responsibilities, and unrestricted access must exist |
| Engagement letter | Written agreement covering objective, scope, responsibilities, limitations, and framework |
| Predecessor communication | Successor auditor must communicate with predecessor before accepting the engagement |
| Recurring engagements | New letter not required annually, but auditor must reassess when circumstances change |
| Changes in terms | Only acceptable with reasonable justification; auditor should refuse if motivated by scope limitation or concealment |