The audit of this year’s statements rests on last year’s. Opening balances are last year’s closing balances. Comparatives are last year’s figures shown beside this year’s. If last year was audited by someone else, or not audited at all, or the figures were wrong, the current report may have to say so.
This topic joins up the audit work in the earlier topics on opening balances and comparatives with what the auditor writes in the report.
It also brings together the going concern reporting rules, which November 2025 Question 4 tested in two parts: what happens if management will not disclose a material uncertainty (5 marks), and what the report looks like where the basis is appropriate but a material uncertainty exists (7 marks). The topic on going concern gave the audit work. This one gives the report.
In 30 seconds
Under International Standard on Auditing (ISA) 510, the report is modified if the auditor cannot get sufficient appropriate evidence on opening balances (qualified or disclaimer), if opening balances contain a misstatement that materially affects the current period and is not properly dealt with (qualified or adverse), if accounting policies are not applied consistently or a change is not properly accounted for (qualified or adverse), or if the prior report was modified and the matter still matters.
Under ISA 710, the opinion does not refer to corresponding figures unless an unresolved prior modification, or an uncorrected material misstatement in the prior period, requires it. If the prior period was audited by another auditor or not audited, an other matter paragraph says so.
For going concern, if the basis is appropriate but a material uncertainty exists and the disclosure is adequate, the opinion is unmodified and a separate Material Uncertainty Related to Going Concern section follows the Basis for Opinion. If the disclosure is inadequate, the opinion is qualified or adverse. If the basis is inappropriate, the opinion is adverse, unless an acceptable alternative basis is used and disclosed.
Management is reluctant to disclose because it looks like failure and may harm relations with banks, suppliers, customers and staff.
Opening balances: ISA 510
The audit work on opening balances was covered in an earlier topic. For the report, ISA 510 requires the auditor to modify the opinion in these circumstances.
| Circumstance | Opinion |
|---|---|
| The auditor cannot get sufficient appropriate evidence on the opening balances | Qualified (“except for”) or a disclaimer |
| The auditor concludes that opening balances contain a misstatement that materially affects the current period’s statements, and it is not properly accounted for or disclosed | Qualified (“except for”) or adverse |
| The auditor concludes that accounting policies have not been applied consistently, or a change of policy has not been properly accounted for or disclosed | Qualified (“except for”) or adverse |
| The prior period’s auditor’s report was modified and the matter is still relevant and material to the current period’s statements | Modify as appropriate |
The choice between qualified and the other option follows the usual test: qualified if the matter is material but not pervasive, and adverse or disclaimer if it is pervasive.
Comparatives: ISA 710
The financial statements show audited figures for the current year and for the previous year as comparative information. The opinion does not refer to the corresponding figures, except in these circumstances.
| Circumstance | ISA 710 requirement |
|---|---|
| The auditor gave a qualified opinion on the previous period and the problem is unresolved | Modify this year’s report, unless the matter has been resolved and properly dealt with in the statements |
| The auditor finds a material misstatement in the prior period statements, on which an unmodified opinion was given, and the corresponding figures have not been correctly restated or appropriately disclosed | Give a qualified or adverse opinion on the current period statements in respect of the corresponding figures included |
| The prior period statements were audited by another auditor | Use an other matter paragraph to explain this fact and the type of opinion given |
| The prior period statements were not audited | Use an other matter paragraph to say so. The auditor remains responsible under ISA 510 for sufficient appropriate evidence on the opening balances |
The other matter paragraph
If the prior statements were audited by a predecessor and the auditor is not prohibited by law from referring to the predecessor’s report and decides to do so, the Other Matter section states:
- that the prior period statements were audited by the predecessor;
- the type of opinion given and, if modified, the reasons; and
- the date of that report.
If the prior period was unaudited, the section states that fact.
Going concern in the report: ISA 570
If there are signs that the going concern basis may not be appropriate, the auditor considers the effect on the report. The form depends on the auditor’s judgement. There are two views:
- the use of the going concern assumption is appropriate but a material uncertainty exists; or
- the use of the going concern assumption is inappropriate.
If management is unwilling to make or extend a going concern assessment, the auditor also considers the effect on the report.
Appropriate basis, material uncertainty exists
The auditor considers whether the statements:
- adequately describe the principal events or conditions that may cast significant doubt on the entity’s ability to continue as a going concern, and management’s plans to deal with them; and
- clearly disclose that a material uncertainty exists that may cast significant doubt on the entity’s ability to continue as a going concern.
If the disclosure is adequate, the opinion is unmodified. The auditor adds a separate section immediately after the Basis for Opinion paragraph, headed Material Uncertainty Related to Going Concern. It highlights the uncertainty, draws attention to the relevant note and states that the opinion is not modified in respect of the matter.
A minor change is made to the introduction of the Key Audit Matters section, if there is one, to refer to the new section.
The syllabus example says: “We draw attention to Note X to the financial statements which indicates that the company incurred a net loss of ZZZ during the year ended 31 December 20X6 and, as of that date, the company’s current liabilities exceeded its total assets by YYY.
As stated in Note X, these events or conditions, along with other matters as set forth in Note X, indicate that a material uncertainty exists that may cast significant doubt on the company’s ability to continue as a going concern. Our opinion is not modified in respect of this matter.”
If the disclosure is not adequate, the opinion is qualified or adverse. There is no separate Material Uncertainty section, because the uncertainty is fully explained in the Basis for Qualified (Adverse) Opinion section.
Management’s attitude to disclosure
Management will probably be reluctant to disclose a material uncertainty, and the syllabus gives these reasons:
- admitting that there is material uncertainty about the next 12 months can be seen as a sign of management failure, and management may not want to admit responsibility to shareholders;
- the statement will make the position worse: banks may refuse to lend or withdraw facilities, suppliers may want credit guarantees, and customers may stop buying because they fear that after-sales service will not be provided;
- employees will worry about job security, and many might leave, which raises staff turnover; and
- management may not accept that a material uncertainty exists, so there could be a genuine disagreement with the auditor.
If management refuses to give suitable disclosure, the opinion is modified. That is the answer to the implications for the audit in November 2025 Question 4(b): the auditor discusses the matter with management, tells those charged with governance, and issues a qualified or adverse opinion, explaining the matter in the Basis for Opinion section.
Basis inappropriate
If the statements are prepared on the going concern basis but the auditor considers it inappropriate, the syllabus says that the auditor expresses an adverse opinion. If the statements are prepared on an alternative acceptable basis, such as the break-up basis. The basis is adequately disclosed, the auditor can give an unmodified opinion, and may add an emphasis of matter paragraph to highlight the alternative basis.
Note. Some sources say a qualified report should be considered if management will not change its view. Here the answer is adverse. For a clear case of inappropriate use, use the adverse opinion, which is also the ISA 570 position, and mention the qualified option only if the question gives you room.
The rules in more depth
Why opening balances affect the income statement
Opening inventory is part of cost of sales. If the auditor cannot verify opening inventory, profit for the year may be misstated, but the closing statement of financial position may be fine. That is why a scope limitation on opening balances often affects the statement of comprehensive income and the statement of cash flows more than the statement of financial position, and why a qualified opinion is common.
Why the comparatives are not normally mentioned
The opinion is on the current period. The comparatives were covered by last year’s opinion. The auditor refers to them only if last year’s problem still affects this year, or if a new problem in last year’s figures has been found.
Why going concern has its own section
A going concern uncertainty is serious but it is not a failure of the statements, so it does not call for a modified opinion if disclosed. A separate section makes it prominent, and keeps it apart from key audit matters and emphasis of matter paragraphs, which readers might see as less urgent.
Worked example: a first-year audit
Scenario. Kite Ltd appointed your firm for the year to 31 December 2025. Last year’s statements were audited by another firm, which gave an unmodified opinion on 20 March 2025. Materiality is ₦40 million. You cannot get sufficient appropriate evidence about opening inventory of ₦70 million, because the previous auditor did not attend the count. The previous firm will not give access to its files. Closing inventory at 31 December 2025, which you attended, is fully supported.
Step 1: the effect. Opening inventory is part of cost of sales. If opening inventory could be misstated by up to ₦70 million, profit for the year could be misstated by up to ₦70 million, which is above materiality of ₦40 million. Closing inventory, and so the statement of financial position, is supported.
The effect is on profit for the year, the statement of changes in equity at the start and the cash flow statement’s reconciliation, not on the whole of the statements.
Step 2: the opinion. It is a limitation on scope on opening balances. The matter is material. It is confined to specific items, so it is not pervasive.
The opinion is qualified, with “except for the possible effects on the profit for the year and the opening equity” wording, and the Basis for Qualified Opinion section says that the auditor could not get evidence about opening inventory and so could not tell whether adjustments to cost of sales were needed.
Step 3: the comparatives. Because the prior year was audited by another firm, an other matter paragraph states that the statements for the year ended 31 December 2024 were audited by another auditor who expressed an unmodified opinion on 20 March 2025.
Step 4: going concern. Suppose that, in addition, Kite has net current liabilities, a material uncertainty exists and the note is adequate. The report adds the Material Uncertainty Related to Going Concern section. This is separate from the qualification, and the opinion section states the qualified opinion for the opening inventory matter only.
How to score full marks
- Identify the source of the problem. Opening balances, comparatives or going concern.
- Apply the misstatement or scope test, then the material or pervasive test.
- Name the paragraph. Other matter for a predecessor or an unaudited prior year. A separate section for a going concern uncertainty.
- Give the effect on the statements. Opening balances touch the statement of comprehensive income and cash flows first.
- For going concern, deal with adequate and inadequate disclosure separately.
- Give the reasons management is reluctant, if the question asks.
Common mistakes in the exam
- Referring to comparatives in the opinion in cases where ISA 710 does not require it.
- Using an emphasis of matter paragraph for a predecessor auditor. It is an other matter paragraph.
- Giving an unmodified opinion with a going concern section when disclosure is inadequate.
- Giving a disclaimer for a misstatement of opening balances.
- Forgetting that ISA 510 work on opening balances applies when the prior year is unaudited.
- Giving only one reason for management’s reluctance.
Quick revision
- ISA 510: no evidence on opening balances (qualified or disclaimer), misstatement not dealt with (qualified or adverse), inconsistent policies (qualified or adverse), prior modification still relevant.
- ISA 710: refer to corresponding figures only for an unresolved prior modification or an uncorrected prior misstatement.
- Predecessor auditor or unaudited prior year: other matter paragraph.
- Going concern, appropriate with uncertainty and adequate disclosure: unmodified, separate section after the Basis for Opinion.
- Inadequate disclosure: qualified or adverse, no separate section. Inappropriate basis: adverse.
- Management’s reasons: sign of failure, banks, suppliers, customers, employees, genuine disagreement.
Practice questions
These are original questions written in the style of the Institute of Chartered Accountants of Nigeria (ICAN) exam. Try each one before you open the answer. Full model answers follow the written questions.
Recall check: multiple choice
The real ICAN paper has no multiple-choice section. These questions are for quick recall. The written questions that follow are closer to the exam.
Question 1. The auditor cannot get sufficient appropriate evidence on opening balances. The opinion is:
- Unmodified
- Qualified or a disclaimer
- Adverse only
- An emphasis of matter paragraph
Show the answer
B. Qualified if material but not pervasive, a disclaimer if pervasive.
Question 2. Opening balances contain a material misstatement that is not properly accounted for. The opinion is:
- Qualified or adverse
- A disclaimer
- Unmodified
- An other matter paragraph only
Show the answer
A. This is a misstatement, so the opinion is qualified or adverse.
Question 3. The prior period statements were audited by another auditor. The current report uses:
- An other matter paragraph
- An emphasis of matter paragraph
- A disclaimer
- Nothing
Show the answer
A. It states the fact, the type of opinion and the date of the predecessor’s report.
Question 4. The prior period statements were not audited. The auditor:
- Ignores opening balances
- Uses an other matter paragraph and still gets evidence on opening balances under ISA 510
- Gives a disclaimer
- Resigns
Show the answer
B. The auditor remains responsible for evidence on opening balances.
Question 5. The opinion normally refers to corresponding figures:
- Always
- Never
- Only in the circumstances ISA 710 lists
- Only for listed companies
Show the answer
C. For example, an unresolved prior modification.
Question 6. A going concern material uncertainty is adequately disclosed. The opinion is:
- Qualified
- Unmodified, with a separate Material Uncertainty Related to Going Concern section
- Adverse
- A disclaimer
Show the answer
B. The section goes after the Basis for Opinion.
Question 7. The disclosure of a material uncertainty is inadequate. The opinion is:
- Unmodified
- Qualified or adverse, with no separate section
- A disclaimer in all cases
- Unmodified with an emphasis of matter
Show the answer
B. The matter is explained in the Basis for Qualified (Adverse) Opinion section.
Question 8. The financial statements use the going concern basis but the auditor considers it inappropriate. The syllabus says the opinion is:
- Unmodified
- Adverse
- A disclaimer
- An other matter paragraph
Show the answer
B. The auditor expresses an adverse opinion.
Question 9. Which is a reason for management’s reluctance to disclose a material uncertainty?
- It may be seen as management failure
- It will increase the share price
- It will raise bank lending
- It will please suppliers
Show the answer
A. Banks, suppliers, customers and employees may all react badly.
Question 10. The statements are prepared on an acceptable alternative basis, such as break-up, with adequate disclosure. The opinion can be:
- Unmodified, with an emphasis of matter paragraph if needed
- Adverse
- A disclaimer
- Qualified
Show the answer
A. The emphasis of matter highlights the alternative basis.
Written questions
Question 11 (10 marks). State the circumstances in which ISA 510 requires the auditor to modify the report on opening balances, and the type of opinion in each case.
Question 12 (20 marks). (a) Explain the effect on the auditor’s report of the following under ISA 710:
- (i) an unresolved qualification in the prior year
- (ii) a material uncorrected misstatement in the prior period statements
- (iii) a predecessor auditor
- (iv) an unaudited prior period
(8 marks) (b) Explain the form of the report where the going concern basis is appropriate but a material uncertainty exists, when disclosure is (i) adequate and (ii) inadequate, and where the basis is inappropriate. (8 marks) (c) Explain why management is reluctant to disclose a material uncertainty. (4 marks)
Question 13 (10 marks). Kite Ltd’s prior year statements were audited by another firm. You cannot get sufficient appropriate evidence about opening inventory of ₦70 million, but closing inventory is fully supported. Materiality is ₦40 million. Explain the effect on the opinion and describe the report.
Model answers
Show the model answer to Question 11
Circumstances (10 marks). The auditor cannot get sufficient appropriate evidence on the opening balances: a qualified (except for) opinion or a disclaimer. (2.5) Opening balances contain a misstatement that materially affects the current period and is not properly accounted for or disclosed: a qualified or adverse opinion. (2.5) Accounting policies have not been consistently applied, or a change in policy has not been properly accounted for or disclosed: a qualified or adverse opinion.
(2.5) The prior period report was modified and the matter is still relevant and material to the current period: modify as appropriate. (2.5)
Show the model answer to Question 12
(a) ISA 710 (8 marks). (i) Modify this year’s report, unless the matter has been resolved and properly dealt with. (2) (ii) Give a qualified or adverse opinion on the current statements in respect of the corresponding figures. (2) (iii) Use an other matter paragraph stating the fact, the type of opinion given and, if modified, the reasons, and the date of the report.
(2) (iv) Use an other matter paragraph saying the prior period was unaudited, while still getting evidence on opening balances under ISA 510. (2)
(b) Going concern (8 marks). The auditor considers whether the statements describe the principal events or conditions and management’s plans and clearly disclose the material uncertainty.
(1.5) (i) If adequate, the opinion is unmodified, with a separate section headed Material Uncertainty Related to Going Concern immediately after the Basis for Opinion, drawing attention to the note, saying the events indicate a material uncertainty and that the opinion is not modified, with a small change to the key audit matters (KAM) introduction.
(2.5) (ii) If inadequate, the opinion is qualified or adverse, and the uncertainty is explained in the Basis for Qualified (Adverse) Opinion section with no separate section. (2) Where the basis is inappropriate, the opinion is adverse, unless an acceptable alternative basis is used and adequately disclosed, when it can be unmodified with an emphasis of matter paragraph. (2)
(c) Reluctance (4 marks). It can be seen as a sign of management failure and management may not want to admit responsibility. (1) It makes the position worse: banks may withdraw facilities, suppliers want guarantees and customers may stop buying. (1.5) Employees worry about job security and may leave. (1) Management may actually disagree that a material uncertainty exists. (0.5)
Show the model answer to Question 13
Effect (6 marks). The problem is a limitation on scope on opening balances. (1) Opening inventory forms part of cost of sales, so profit could be misstated by up to ₦70 million, above materiality of ₦40 million. (2) Closing inventory is supported, so the statement of financial position is not affected. (1) The effect is confined to specific items, so it is not pervasive. (1) The opinion is therefore qualified. (1)
The report (4 marks). The opinion section says that, except for the possible effects of the matter described in the Basis for Qualified Opinion section, the statements give a true and fair view. (1.5) The basis section says that the auditor could not get evidence about opening inventory and so could not tell whether adjustments to cost of sales were needed.
(1.5) An other matter paragraph states that the prior period statements were audited by another auditor, the type of opinion and the date. (1)
Pathfinder on opening balances, comparatives and going concern in the report
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.
A listed energy company has a going concern uncertainty. Part (b) asks for the implications if management refuses to disclose it, answered by the section on management’s attitude and the inadequate disclosure rule. Part (d) asks for the form of report where the basis is appropriate but a material uncertainty exists, answered by the adequate disclosure rule with the separate section and its three statements.
Revise first: Going concern in the report: ISA 570
Section A is a single compulsory case with several requirements. Practise saying whether a prior year problem or a going concern issue changes the opinion, the paragraphs, or both, before you attempt it.
Revise first: How to score full marks
Source: ICAN Pathfinder, Advanced Audit, Assurance and Forensics. Diets covered: May Diet, 2026 and November Diet, 2025.
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