Performing Public Company Interim Reviews and Reporting Negative Assurance
Feb 7, 2025
How auditors review issuer interim financial information using inquiry, analytical procedures, and negative assurance reporting.
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Public company interim reviews are limited-assurance engagements performed on interim financial information, usually quarterly information included in Form 10-Q. The auditor does not perform a full audit of the quarter. Instead, the auditor performs inquiries, analytical procedures, and other limited procedures to determine whether material modifications appear necessary.
The exam usually tests the difference between an audit opinion and review negative assurance. An audit says the financial statements present fairly. An interim review says the auditor is not aware of material modifications that should be made for conformity with the applicable financial reporting framework.
flowchart TD
A["Issuer prepares interim financial information"] --> B["Auditor updates understanding of the company and controls"]
B --> C["Perform inquiries"]
B --> D["Perform analytical procedures"]
C --> E["Evaluate unusual relationships and management explanations"]
D --> E
E --> F{"Possible material misstatement?"}
F -- "No" --> G["Issue negative assurance review report if report is presented"]
F -- "Yes" --> H["Perform additional procedures and require correction or disclosure"]
H --> I{"Issue resolved?"}
I -- "Yes" --> G
I -- "No" --> J["Modify communication, consider withdrawal, or take other appropriate action"]
Review Objective
An interim review is designed to provide a basis for communicating limited assurance. The auditor performs procedures to determine whether the interim financial information needs material modifications for conformity with the applicable framework.
Engagement
Main procedures
Assurance wording
Typical output
Annual audit
Risk assessment, tests of controls when relevant, substantive procedures, confirmations, observation, inspection, recalculation, and other audit evidence
Review report or required review completion for issuer filing context
Compilation
Accounting assistance and presentation based on management information
No assurance
Compilation report
The auditor should not let the term “review” imply a casual check. The work is limited compared with an audit, but it is still a professional assurance engagement with planning, documentation, and follow-up responsibilities.
Core Procedures
Interim review procedures focus on whether anything appears materially wrong or inadequately disclosed.
Procedure
What the auditor is looking for
Inquiries of management and financial reporting personnel
New transactions, accounting changes, unusual adjustments, fraud allegations, legal matters, related-party transactions, subsequent events, and internal-control changes.
Analytical procedures
Unexpected relationships in revenue, margins, expenses, working capital, debt, cash flows, or other key metrics.
Reading board and committee minutes
Significant approvals, financing decisions, litigation, restructuring, compensation matters, acquisitions, or other events affecting interim reporting.
Reading interim financial information
Obvious presentation problems, missing disclosures, inconsistent terminology, or amounts that conflict with other information.
Additional procedures when issues arise
Targeted corroboration of explanations or corrections when inquiries and analytics identify a possible material misstatement.
The auditor ordinarily does not perform all procedures required in an annual audit. For example, the review usually does not include full tests of accounting records, physical inventory observation, external confirmations, or extensive tests of controls unless a specific issue requires follow-up.
Negative Assurance
Negative assurance is the central reporting concept. The auditor’s wording is framed around what did not come to the auditor’s attention.
Wording idea
Meaning
“We conducted our review…”
The engagement was a review, not an audit.
“A review is substantially less in scope than an audit…”
Users are warned not to infer audit-level assurance.
“We do not express an opinion…”
The auditor is not giving positive audit assurance.
“We are not aware of any material modifications…”
This is negative assurance based on limited procedures.
If a question asks whether the auditor expresses an opinion on interim financial information, the answer is usually no. The auditor reports negative assurance, not an audit opinion.
Public Company Context
Issuer interim reviews are performed under PCAOB standards. They fit into a broader public-company reporting cycle that includes quarterly reporting, audit committee communication, and year-end audit planning.
Important public-company points include:
The auditor should have sufficient knowledge of the issuer’s business, internal control, and financial reporting practices.
The auditor updates that knowledge for interim changes.
Significant review matters may affect the annual audit risk assessment.
The auditor communicates required matters to the audit committee or those charged with governance.
The review does not replace the year-end audit.
Do not confuse issuer interim reviews with SSARS review engagements for nonissuer financial statements. The procedures may sound similar, but the standards, reporting context, and regulatory environment differ.
When Problems Are Found
If the auditor becomes aware of information suggesting the interim financial information may be materially misstated, the auditor cannot ignore it because the engagement is “only a review.” The auditor performs additional procedures necessary to resolve the matter.
Problem identified
Auditor response
Management’s explanation for a margin change is inconsistent with other evidence
Perform additional inquiry or targeted corroboration.
Interim financial information omits a material disclosure
Request correction or disclosure.
A possible illegal act or fraud indicator arises
Follow applicable inquiry, communication, and evaluation responsibilities.
Management refuses to correct a material misstatement
Consider report modification, withdrawal, and required communications.
Issue affects the annual audit risk assessment
Carry the information into year-end planning.
The exam trap is choosing “issue the standard negative assurance report” even after the fact pattern gives the auditor unresolved evidence of a material misstatement.
Exam Traps
Interim reviews provide negative assurance, not positive assurance.
Analytical procedures and inquiries are central; extensive substantive testing is not the default.
The auditor performs additional procedures when review procedures identify a possible material misstatement.
A Form 10-Q review does not replace the annual audit of Form 10-K financial statements.
Issuer interim reviews are not the same as SSARS reviews for nonissuers.
A review report should not imply that the auditor audited the interim financial information.
Quick Review
Use this sequence for interim review questions:
Identify whether the entity is an issuer and whether interim financial information is involved.
Remember that the engagement gives limited assurance.
Look for inquiry and analytical procedures as the core procedures.
Watch for unusual fluctuations, accounting changes, omitted disclosures, fraud indicators, and subsequent events.
If a possible material misstatement appears, perform additional procedures.
Report negative assurance only when unresolved material issues are not present.
Review Questions
### What level of assurance does a public-company interim review provide?
- [ ] Positive assurance that the interim financial information presents fairly.
- [x] Negative assurance that the auditor is not aware of material modifications needed.
- [ ] Absolute assurance on quarterly internal control effectiveness.
- [ ] No assurance and no professional responsibility.
> **Explanation:** An interim review provides limited assurance expressed negatively, not an audit opinion.
### Which procedures are most central to an interim review?
- [ ] Physical inventory observation and external confirmations.
- [ ] Full tests of controls and detailed substantive procedures.
- [x] Inquiries and analytical procedures.
- [ ] Reperformance of all year-end audit procedures.
> **Explanation:** Reviews rely primarily on inquiry and analytical procedures, with additional procedures when issues arise.
### What does negative assurance mean in an interim review report?
- [x] Nothing came to the auditor's attention indicating that material modifications are needed.
- [ ] The auditor guarantees that the interim financial information is accurate.
- [ ] The auditor expresses an adverse opinion on internal controls.
- [ ] The auditor found immaterial errors but did not document them.
> **Explanation:** Negative assurance is framed around the absence of awareness of needed material modifications based on limited procedures.
### Which filing commonly contains quarterly interim financial information for a U.S. issuer?
- [ ] Form 10-K.
- [ ] Proxy statement.
- [x] Form 10-Q.
- [ ] Form 8-A.
> **Explanation:** U.S. public companies generally use Form 10-Q for quarterly reporting.
### If analytical procedures reveal an unexplained gross-margin decline, what should the auditor do?
- [ ] Ignore it because review procedures never require follow-up.
- [x] Inquire and perform additional procedures needed to resolve the matter.
- [ ] Immediately issue an adverse audit opinion.
- [ ] Convert the engagement into a compilation.
> **Explanation:** Possible material misstatements identified during a review require additional procedures or resolution.
### Which statement best distinguishes an interim review from an annual audit?
- [x] A review is substantially less in scope and does not result in an audit opinion.
- [ ] A review provides more assurance because it occurs quarterly.
- [ ] A review requires all procedures used in a year-end audit.
- [ ] A review eliminates the need for audit committee communication.
> **Explanation:** The review scope is limited and supports negative assurance rather than positive audit assurance.
### Which issue would most likely require follow-up during an interim review?
- [ ] Revenue is exactly equal to the prior quarter.
- [ ] The company changed its logo during the quarter.
- [ ] The controller took a planned vacation.
- [x] Management adopted a new revenue recognition policy without clear disclosure.
> **Explanation:** Accounting-policy changes and related disclosures are directly relevant to whether interim financial information needs material modifications.
### What should the review report avoid implying?
- [ ] That management is responsible for the interim financial information.
- [x] That the auditor audited the interim financial information.
- [ ] That the auditor performed inquiries.
- [ ] That the auditor performed analytical procedures.
> **Explanation:** Review reports should clearly distinguish review-level assurance from audit-level assurance.
### How can interim review findings affect the year-end audit?
- [ ] They have no relevance to the annual audit.
- [x] They may update risk assessment and planning for the annual audit.
- [ ] They replace substantive procedures at year-end.
- [ ] They eliminate the need to consider internal control.
> **Explanation:** Interim review findings can reveal risks, control changes, or accounting issues relevant to year-end audit planning.
### Which statement about issuer interim reviews is correct?
- [ ] They are governed primarily by SSARS compilation standards.
- [x] They are performed in the public-company reporting environment under PCAOB standards.
- [ ] They always include an opinion on ICFR effectiveness.
- [ ] They are identical to a full audit of quarterly financial statements.
> **Explanation:** Issuer interim reviews are public-company review engagements under PCAOB standards, not SSARS compilations or full audits.