An auditor finds that a company has not written down ₦300 million of obsolete inventory. Another cannot count the inventory because the company's records were destroyed in a fire. A third finds that all is well but that a major lawsuit has been disclosed in a note, which the auditor thinks every reader should notice. Each case needs a different kind of report.
The first is a misstatement, the second a limit on the evidence, and the third a matter to draw attention to. The auditor must choose the right form, and the exam asks for it again and again.
This topic covers the circumstances in which the opinion is modified under ISA 705, the three types of modified opinion, the choice between them by the nature of the matter and its pervasiveness, the structure of a modified report, and emphasis of matter and other matter paragraphs under ISA 706. The previous topic covered going concern, and the next begins the audit of information systems.
In 30 seconds
Modify the opinion when: the statements are materially misstated, or the auditor cannot obtain sufficient appropriate evidence. Choose by: the nature of the matter (misstatement or limitation of scope) and its effect (material but not pervasive, or material and pervasive). Qualified (except for): material but not pervasive. Adverse: material and pervasive misstatement. Disclaimer: possible effects of undetected misstatement are material and pervasive because of a limit on evidence.
Add a "Basis for Qualified/Adverse Opinion/Disclaimer" paragraph. Emphasis of matter and other matter paragraphs do not modify the opinion.
Key terms in plain English
| Term | What it means |
|---|---|
| Qualified opinion | An "except for" opinion on a material, confined matter |
| Adverse opinion | An opinion that the statements are not true and fair |
| Disclaimer of opinion | A statement that no opinion is expressed |
| Pervasive | Not confined to specific items, or fundamental to understanding |
| Limitation of scope | A restriction on the evidence the auditor can obtain |
| Emphasis of matter | A paragraph drawing attention to a disclosed matter |
Syllabus check
This topic is in syllabus area C, audit evidence, completion and reporting (25% of marks). It covers:
- types of audit opinion and the circumstances that lead to modification
- the effect of misstatements and limits on scope on the report
- emphasis of matter and other matter paragraphs
CAMA 2020 and modified opinions
The Companies and Allied Matters Act 2020 (CAMA 2020) is the company law of Nigeria. The sections below apply to this topic.
| Section | What it says | Link to this topic |
|---|---|---|
| s. 404(2) | The auditor states whether the accounts give a true and fair view and whether proper books were kept | A modified opinion qualifies this statement |
| s. 404(7) | The audit committee reviews the auditor's report and management findings | Modifications go to the committee |
| s. 407(3) | Right of access to books, accounts, vouchers and information | A refusal of access is a limitation of scope |
The rules in more depth
When the opinion is modified
ISA 705 requires the auditor to modify the opinion when:
- the auditor concludes, on the evidence obtained, that the financial statements as a whole are not free from material misstatement; or
- the auditor is unable to obtain sufficient appropriate evidence to conclude that the statements as a whole are free from material misstatement.
The syllabus for this course asks for an understanding of the types of audit opinion and the circumstances that lead to each, but the detailed requirements of ISA 705 and ISA 706 are outside the main reading. They are still tested in practice, in scenario questions and in the going concern and expectation gap questions.
Material and pervasive
Material: misstatements are material if, individually or together, they could reasonably be expected to influence the economic decisions of users. Pervasive: an effect that is not confined to specific elements, accounts or items; or, if confined, represents or could represent a substantial proportion of the statements; or, in relation to disclosures, is fundamental to the users' understanding of the statements.
Pervasiveness is the key to choosing between a qualified and an adverse opinion or a disclaimer.
The three types of modified opinion
| Nature of the matter | Material but not pervasive | Material and pervasive |
|---|---|---|
| Statements are materially misstated | Qualified opinion ("except for") | Adverse opinion |
| Unable to obtain sufficient appropriate evidence (limitation of scope) | Qualified opinion ("except for the possible effects") | Disclaimer of opinion |
- Qualified opinion. The auditor concludes that, except for the effects of the matter, the statements give a true and fair view. The problem is material but confined.
- Adverse opinion. The auditor concludes that the misstatements are both material and pervasive, so the statements do not give a true and fair view.
- Disclaimer of opinion. The auditor could not obtain evidence on which to base an opinion, and concludes that the possible effects of undetected misstatements could be both material and pervasive. The auditor says that no opinion is expressed.
If the auditor has been unable to obtain evidence but the possible effects are not pervasive, the opinion is qualified. If a limitation of scope is imposed by management after the auditor has accepted the engagement, the auditor asks management to remove it. If management refuses, the auditor discloses the matter to those charged with governance and either qualifies or disclaims, or withdraws where possible.
Examples of each
- Material misstatement, not pervasive: inventory overstated by ₦300 million against profit of ₦4 billion and total assets of ₦40 billion. The auditor issues a qualified opinion, "except for the overstatement of inventory".
- Material and pervasive misstatement: the directors consolidated a subsidiary that they do not control, which inflates every line. The auditor issues an adverse opinion. Also a company that has prepared the statements on a going concern basis when it must close.
- Limitation, not pervasive: the auditor could not attend the inventory count and cannot satisfy herself on inventory by other means, which is material but affects one balance. Qualified, "except for the possible adjustments".
- Limitation, pervasive: records were destroyed and the auditor cannot test most items. A disclaimer.
Structure of a modified report
When the opinion is modified, the report has:
- the Opinion section headed "Qualified Opinion", "Adverse Opinion" or "Disclaimer of Opinion", which says "except for" or states that the statements do not give a true and fair view, or states that the auditor does not express an opinion;
- a Basis for Qualified Opinion, Basis for Adverse Opinion or Basis for Disclaimer of Opinion paragraph that describes the matter, and if the matter is a misstatement, quantifies the effect, or says that it is not practicable to do so; and
- the other normal sections, though for a disclaimer the statements about the auditor's responsibilities are changed so that they do not suggest that the audit was an adequate basis for an opinion.
For a disclaimer, the report no longer includes a section on key audit matters. For a qualified or adverse opinion, KAMs may be included but must not suggest that the matter is not a problem. The reasoning for the modification is explained in the basis paragraph, not in a KAM.
Sample qualified opinion wording. In our opinion, except for the effects of the matter described in the Basis for Qualified Opinion section of our report, the accompanying financial statements give a true and fair view of the financial position of ABC Company as at 31 December 20X6 and of its financial performance and cash flows for the year then ended in accordance with IFRS.
Basis for Qualified Opinion: the Company's inventories are carried in the statement of financial position at ₦X. Management has not stated the inventories at the lower of cost and net realisable value but has stated them at cost, which is a departure from IFRS.
The company's records indicate that, had management stated the inventories at the lower of cost and net realisable value, an amount of ₦Y would have been required to write the inventories down. Accordingly, cost of sales would have been increased by ₦Y, and income tax, net income and shareholders' equity would have been reduced by ₦Z.
Emphasis of matter and other matter paragraphs
These paragraphs do not modify the opinion. They are decided by reference to the user.
- An emphasis of matter paragraph refers to a matter that is appropriately presented or disclosed in the statements and that, in the auditor's judgement, is of such importance that it is fundamental to the users' understanding of the statements. Examples are an unusual major litigation, a significant subsequent event, or a major catastrophe that has affected the entity's financial position. It must say that the opinion is not modified in respect of the matter and point to the note.
- An other matter paragraph refers to a matter other than those presented or disclosed in the statements that is relevant to users' understanding of the audit, the auditor's responsibilities or the report. Examples are that the prior year's statements were audited by another auditor, or that the report is restricted in distribution.
Both are placed after the opinion and the basis for opinion, in a separate section with a suitable heading. An auditor does not use an emphasis of matter paragraph in place of a modification when the statements are materially misstated, and does not use it for a material uncertainty on going concern, which has its own section.
Comparing the types of paragraph
| Item | Is the opinion modified? | Use |
|---|---|---|
| Qualified opinion | Yes | Material, not pervasive |
| Adverse opinion | Yes | Material and pervasive misstatement |
| Disclaimer | Yes | Material and pervasive limitation of scope |
| Emphasis of matter | No | A disclosed matter fundamental to understanding |
| Other matter | No | A matter relevant to understanding the audit or report, not in the statements |
| Material uncertainty on going concern | No | Disclosed uncertainty about going concern |
| Key audit matters | No | The most significant matters in the audit |
Process for deciding the report
- Accumulate and evaluate misstatements and limits on evidence.
- Decide whether each matter is material, individually and together.
- Decide whether it is pervasive.
- Pick the opinion from the table.
- Discuss with management and those charged with governance; give management a chance to correct.
- Draft the basis paragraph and describe the effect.
- Review the draft with the engagement partner and, where required, the quality reviewer.
Where a modification of the opinion arises in a listed company, the auditor also considers the regulatory consequences: the Financial Reporting Council of Nigeria and the stock exchange may require disclosure and follow-up.
Where the auditor has qualified the report because of a disagreement with directors on a major matter, the auditor also considers whether the matter should be reported to the audit committee and to the members at the annual general meeting.
Worked examples
Example 1: choose the opinion. Receivables of ₦600 million, 4% of total assets, are not provided against although the debtor is insolvent.
- The misstatement is material but confined to one balance.
- The opinion is qualified: "except for".
Example 2: pervasive. The directors refuse to consolidate five subsidiaries that make up most of the group's assets and revenue.
- The effect is material and pervasive.
- The opinion is adverse.
Example 3: limit on scope. The auditor was appointed after the year end, could not observe the inventory count and cannot confirm the figure by other means. Inventory is 35% of assets.
- The possible effect is material but confined to inventory, so qualified for the limitation.
- If the auditor also cannot test receivables and cash, the possible effects become pervasive and a disclaimer follows.
Example 4: emphasis. A company has disclosed a regulatory investigation that may lead to a large fine. The auditor agrees with the disclosure.
- The statements are fairly presented, so the opinion is unmodified.
- An emphasis of matter paragraph may be added.
How to score full marks
- Use the two-by-two table of nature and pervasiveness.
- Apply the facts: material? pervasive? misstatement or limit?
- Draft the opinion and the basis paragraph if asked.
- Separate modifications from emphasis, other matter and KAM paragraphs.
Common mistakes in the exam
- Qualifying where the matter is pervasive.
- Using an emphasis paragraph to cover a material misstatement.
- Giving a disclaimer for a misstatement.
- Leaving out the basis for modification paragraph.
Quick revision
- Misstatement: qualified or adverse. Limit on scope: qualified or disclaimer.
- Pervasive: adverse or disclaimer.
- Basis paragraph is required.
- Emphasis, other matter and KAM do not modify.
Practice questions
Questions 1 to 10 are multiple choice. Questions 11 to 13 are written. Try each before opening the answer.
Question 1. A qualified opinion is used when the matter is material but:
- Not pervasive
- Pervasive
- Trivial
- Fraudulent
Show the answer
A. "Except for".
Question 2. An adverse opinion is given when misstatements are:
- Material and pervasive
- Trivial
- Corrected
- Unknown
Show the answer
A. The statements are not true and fair.
Question 3. A disclaimer is given when the auditor:
- Cannot obtain evidence and the effects could be pervasive
- Finds a small error
- Disagrees with a note
- Has high fees
Show the answer
A. No opinion is expressed.
Question 4. Pervasive effects are those that:
- Are not confined to specific items or are fundamental
- Are small
- Are corrected
- Are in one account only
Show the answer
A. Defined in ISA 705.
Question 5. A limit on scope that is material but not pervasive leads to a:
- Qualified opinion
- Disclaimer
- Adverse opinion
- Unmodified opinion
Show the answer
A. "Except for the possible effects".
Question 6. A modified opinion requires a:
- Basis for modification paragraph
- Fee note
- Budget
- Tax return
Show the answer
A. Describing the matter.
Question 7. An emphasis of matter paragraph:
- Does not modify the opinion
- Modifies the opinion
- Replaces the opinion
- Ends the audit
Show the answer
A. It points to a disclosed matter.
Question 8. An other matter paragraph could say that:
- The prior year was audited by another auditor
- The audit fee is high
- Inventory is overstated
- Cash is missing
Show the answer
A. A matter outside the statements.
Question 9. Which does NOT modify the opinion?
- Key audit matters
- Adverse opinion
- Disclaimer
- Qualified opinion
Show the answer
A. KAMs are a normal section.
Question 10. A misstatement that is material and pervasive gives an:
- Adverse opinion
- Qualified opinion
- Disclaimer
- Unmodified opinion
Show the answer
A. The statements are not fairly presented.
Question 11 (10 marks). Explain the circumstances in which the auditor modifies the opinion and the three types of modified opinion. (8 marks)
Question 12 (10 marks). Explain how the auditor decides between a qualified and an adverse opinion, and between a qualified opinion and a disclaimer. (6 marks)
Question 13 (10 marks). Explain the difference between an emphasis of matter paragraph and a qualified opinion, with an example of each. (6 marks)
Model answers
Show the model answer to Question 11
When statements are materially misstated or the auditor cannot get sufficient appropriate evidence. (2) Qualified: material but not pervasive; adverse: material and pervasive misstatement; disclaimer: limit on evidence with possible effects material and pervasive. (6)
Show the model answer to Question 12
Decide the nature: misstatement or limit on scope. (1) Then whether material and pervasive. Misstatement: qualified if not pervasive, adverse if pervasive. Limit on scope: qualified if not pervasive, disclaimer if pervasive. (5)
Show the model answer to Question 13
An emphasis paragraph draws attention to a properly disclosed matter and the opinion is not modified; example, a major lawsuit disclosed in a note. (3) A qualified opinion modifies the opinion because of a material misstatement or limit on evidence; example, inventory overstated by a material amount. (3)
Pathfinder on Modified opinions and emphasis of matter paragraphs
These are the ICAN Pathfinder questions that test this topic. ICAN owns the questions and the suggested solutions, so we point you to them and do not copy them. Open your Pathfinder, attempt each question under exam conditions, then check your answer against the notes above.
Revise first: Comparing the types of paragraph
Source: ICAN Pathfinder, Audit, Assurance and Forensics. Diets covered: May 2026 and November 2025.
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