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Changes in a professional appointment

ICAN Professional, Advanced Audit, Assurance and Forensics. Syllabus area B, accepting professional engagements and managing assignments

17 min read · Updated 5 November 2026

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Auditors change. A company outgrows its firm, a new board wants its own choice, or the old auditors and the directors fall out. The incoming auditor needs to know why before taking the work, because the reason may be a warning. The outgoing auditor owes duties too: to answer honestly, to hand over what is needed and to be paid.

Institute of Chartered Accountants of Nigeria (ICAN)’s code sets out a procedure for the change, and Companies and Allied Matters Act 2020 (CAMA 2020) gives the shareholders the protection of the law: removal is in section 409, and resignation and the resigning auditor’s right to requisition a meeting are in sections 412 and 413.

This topic covers why appointments change, the steps before accepting a new appointment, client identification, professional enquiry of the existing auditor, unpaid fees, confidentiality, defamation, joint auditors and vacancies, additional work, a worked acceptance decision, and the rules on client books (lien) and working papers. Examiners test the sequence of professional enquiry and a scenario where the facts about the old auditor are a warning sign.

In 30 seconds

Appointments change because a firm is too small, directors change, independence is doubted, there is a dispute or confidence is lost. Before accepting, the new firm checks for professional problems (independence, expertise, conflicts), confirms it has resources, screens the client and directors, and makes a professional enquiry of the existing auditor. It must identify the client for anti-money laundering purposes.

The client’s permission is needed to contact the old auditor, and if refused the appointment must not be accepted. The old auditor must reply promptly and state the facts, not just say that facts exist. The new auditor must be sure the old one was properly removed and paid. A reply is protected by qualified privilege, so defamation is not a worry if it is made without malice.

A lien may be used over books the auditor worked on, but working papers belong to the auditor. Sections 409, 412 and 413 of CAMA 2020 deal with removal, resignation and the resigning auditor’s right to call a meeting.

Why a change arises

A member may be asked to accept a new appointment where the previous (“old”) auditor will not be reappointed. Reasons include:

  • the current firm is too small for an expanding client with several locations or countries;
  • a change in the board, and new directors want an auditor of their choice;
  • perceived lack of independence, possibly one that has just arisen;
  • a disagreement between the directors and the old firm, for example over an accounting treatment; and
  • a loss of confidence in the old firm.

In theory, shareholders appoint the auditor. In practice, directors recommend a change to them. If the outgoing auditor thinks the reason should be brought to the shareholders’ attention, as in a dispute, the law lets him make representations.

In Nigeria, sections 409, 412 and 413 of CAMA 2020 deal with the removal of auditors (s. 410 adds the right of a removed auditor to attend and be heard at the relevant meetings), the resignation of auditors, and the right of a resigning auditor to requisition a company meeting.

Steps before accepting a new appointment

  1. Look for professional problems. For example a lack of independence, lack of technical expertise or a conflict of interest.
  2. Check resources. There must be enough staff of the right level of expertise at the right time.
  3. Take up references on the client and its directors if they are not known. This is client screening.
  4. Communicate with the existing auditors, if any, about the appointment, the client and the audit work. ICAN’s code calls this professional enquiry.

Client identification

To meet anti-money laundering rules, the firm must confirm that the client is who it says it is and that there is no ground for suspecting money laundering.

  • For a company or other entity, get documentary evidence of identity, such as a certificate of incorporation, and evidence of address, such as headed letter paper.
  • For an individual, get identity from a passport or driving licence and, possibly, address from a recent utility bill.
  • Consider whether the client’s business “makes commercial sense”. A very large company running a few dry-cleaning shops would not, and the declared business may be a front for hidden illegal activity.

These checks are usually a formality, and the client may be surprised by them, so the firm should explain their regulatory purpose.

Professional enquiry of the existing auditor

The new firm should communicate with the current auditors to find out whether there is anything it should know before it decides to accept. Partly this is courtesy, but it also lets the firm decide whether the client is one it wishes to act for. The rules are:

  1. When a prospective client first approaches the member, he should explain that he has a professional duty to communicate with the existing auditor or adviser.
  2. The client’s permission is required. If the client refuses, the appointment must not be accepted.
  3. If the client does not give the current auditor permission to reply to relevant questions, the current auditor should tell the prospective auditor of that fact, who should then not accept the appointment.
  4. If the current auditor gives no relevant information, the new auditor accepts or rejects on the other knowledge available.
  5. The existing auditor must answer without delay. If there is nothing the newcomer should know, he writes to say so.
  6. If there are such matters, he must tell the prospective auditor the facts known to him that he thinks the newcomer should know. It is not enough to say that unspecified facts exist.
  7. He may prefer to explain orally. The prospective auditor should be ready to meet, and each keeps a record of the discussion.
  8. If the old auditor reports a conflict of views with the client, the successor discusses it with the client and satisfies himself either that the client’s view is reasonable or that the client will accept that the incoming auditor may have to express a contrary opinion.
  9. If there is no reply within a reasonable time, the successor tries other means, such as telephone, fax or email.
  10. If that fails, and he has no reason to think there are untoward circumstances, he sends a final letter by recorded delivery saying that unless he hears within a stated time he will assume there are no matters to bring to his attention. A member who accepts in such circumstances may still complain to the Institute that the existing auditor did not respond.
  11. If satisfied that he can act and is prepared to accept, he informs the client in writing.

Other rules in the change process

IssueRule
Unpaid feesA member must not accept an audit previously done by another member without making sure the other member was properly removed from office and that outstanding fees were paid in full
ConfidentialityThe prospective auditor should treat the existing auditor’s information in confidence. But he may have to disclose to officers or employees of the client matters that need investigating. Disclosure should go no wider than necessary
DefamationAn existing auditor who tells a prospective auditor things damaging to the client or an individual is likely to have strong protection by qualified privilege. He is not liable for damages for defamatory statements, even if untrue, provided he made them without malice
Joint auditorA firm nominated as joint auditor should communicate with all existing auditors on similar principles. Where a joint appointment becomes a sole appointment, the surviving auditor should formally communicate with the outgoing joint auditor
Vacancy on death of a sole practitionerThe firm invited to accept should try to get the information it needs from the late practitioner’s alternative, the administrators of the estate or other sources
Additional workA member asked to do recurring or one-off work additional to and related to continuing work by another chartered accountant should normally notify that accountant, who can then give information the new work needs and adjust how he carries out his own duties. Notification should always be given. Opinions on the application of accounting standards need particular sensitivity to avoid adversarial positions

Deciding whether to accept

A firm may decide that accepting a new appointment would threaten its reputation or raise serious ethical issues. Acceptance is a matter of judgement.

Example. Backle Company is owner-managed and asks your firm to become its auditor. The current auditors have just resigned for lack of resources, having taken the audit two years before at a lower fee after the previous auditors resigned in a fee dispute.

The company has internal control weaknesses reported to management and not fixed, disputes with the tax authorities over three years’ profits, a poor public image, investigations by the police and regulators, and plans to expand using bank loans.

  • Reputation: the firm may not want to be linked with a client whose image is poor.
  • Advocacy threat: the investigations may lead to legal action in which the firm is expected to defend the company.
  • Aggressive management: management argues with auditors and wants low costs, so fee disputes are likely.
  • Audit risk: bank loans mean management wants strong profits in the statements, so misstatement risk is high. The firm may consider a disclaimer in the report to limit liability to the bank.
  • Weak controls not fixed also point to high risk.
  • Opening balances: high risk means careful work on opening balances, which adds cost and time that management may refuse.

There is no evidence of fraud, so the firm may accept, subject to agreement on fees.

Client books, working papers and lien

When a new auditor is appointed, the outgoing auditor should arrange to transfer client books and records in his possession. Where fees are unpaid, he may exercise a lien, a right to keep property belonging to another until amounts due are paid. Auditors have a particular lien, not a general one: it covers only the books and records on which the auditor did audit work.

To apply the lien, the documents must have come into the auditor’s possession lawfully, an invoice must have been sent, and there must be no dispute over fees. In some countries the courts have held that a lien cannot be exercised over books and records the client must keep by law, which is most of them, so it is often weak.

Audit working papers are prepared by the auditors for their work and generally belong to them, unless the engagement letter or national law says otherwise. The outgoing auditor must still give the new auditor enough information for a reasonable handover, depending on the stage the audit has reached.

The rules in more depth

Why the client’s permission is the key

The outgoing auditor owes confidentiality to the client and may not speak without permission. If the client refuses to allow the conversation, the most natural reading is that there is something to hide. That is why the rule is absolute: no permission, no acceptance.

Why the old auditor must state facts

A reply that says only that “there are matters” tells the newcomer nothing but leaves a warning. The rule that facts must be given means the newcomer can make a real decision. Qualified privilege makes that safe for the old auditor, as long as there is no malice.

Why the fees rule exists

If clients could change auditors to avoid paying, auditors would be reluctant to challenge them. The new auditor’s duty to make sure the old fees are paid supports independence and fair dealing in the profession.

Numbers: the final letter

A prospective auditor sends a first letter on 2 May, reminds by phone on 16 May and sends a final recorded-delivery letter on 23 May, saying he will assume there are no matters if no reply comes within 14 days. The deadline is 6 June (23 May plus 14 days: 8 days left in May, then 6 in June). If nothing is received and there are no untoward circumstances, he may accept, and can still complain to ICAN.

Worked example: a prospective appointment

Scenario. Yusuf and Co is asked to become auditor of Kano Pipes Ltd. The client says the old auditors, Bello and Co, were dismissed because the new managing director wants a firm “with a fresher approach”. The managing director refuses to let Yusuf contact Bello. Yusuf learns that Bello is owed ₦4 million in fees.

Kano also wants Yusuf to give an opinion on how to account for a disputed contract while the audit with Bello is still open. Advise.

  1. Professional enquiry. Yusuf must communicate with the existing auditor. The client’s permission is required, and it has been refused, so Yusuf must not accept.
  2. If permission were given. Bello must reply promptly and state the facts, not just say that facts exist. Both keep records of any meeting.
  3. Unpaid fees. Yusuf must make sure Bello was properly removed from office and that the ₦4 million is paid before accepting. The incoming auditor should help recovery within a reasonable time.
  4. Removal. Directors cannot remove an auditor. The shareholders must do so by ordinary resolution with special notice. If the managing director “dismissed” Bello, the removal may be invalid.
  5. Opinion on the contract. A second opinion on an accounting treatment needs the client’s permission to contact the auditor. Yusuf should notify Bello of additional work and be sensitive about adversarial positions.
  6. Client identification and screening. Do the anti-money laundering checks, take references on the company and directors.
  7. Conclusion. Decline until permission is given, fees are paid and Bello is properly removed. Tell the client in writing if declining.

How to score full marks

  • For “procedures before acceptance”, give the four steps and then the extras. Professional problems, resources, screening, professional enquiry, then client identification, fees paid and proper removal, and the engagement letter.
  • For professional enquiry, state the permission rule first. It is the point most often tested. Then the old auditor’s duty to reply, the facts, and what the new auditor does when there is no reply.
  • Apply to the scenario. Each fact about the old auditor, the client or the fees maps to a rule. Name the rule and the consequence.
  • For lien questions, give the conditions. Lawfully held, invoiced, undisputed, particular not general, and the limit where the client must keep the records by law.
  • Separate confidentiality from defamation. One is about disclosure, the other about protection from claims.
  • Time. Spend time in proportion to marks.

Common mistakes in the exam

  • Accepting when the client refuses permission to contact the old auditor.
  • Forgetting the unpaid fees and proper removal checks.
  • Saying the old auditor need only say that matters exist.
  • Saying a lien applies to all documents. It is a particular lien.
  • Saying working papers belong to the client.
  • Omitting client identification and the “commercial sense” test.
  • Saying the directors may remove the auditor.
  • Forgetting to notify the existing accountant of additional work.

Quick revision

  • Reasons: too small, new board, independence doubt, dispute, loss of confidence.
  • Before accepting: professional problems, resources, screening, professional enquiry; client identification.
  • Enquiry: client permission or do not accept; prompt reply with facts; recorded delivery final letter; written acceptance.
  • Fees paid and proper removal. Confidentiality no wider than needed. Qualified privilege.
  • Lien: particular, lawful possession, invoiced, no dispute. Working papers belong to the auditor.
  • CAMA 2020 ss. 409, 410, 412 and 413. Notify the existing accountant of additional work.

Practice questions

These are original questions written in the style of the 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. If a client refuses permission for the prospective auditor to contact the existing auditor:

  1. The appointment should not be accepted
  2. The appointment may be accepted at once
  3. The auditor may phone anyway
  4. The fee is reduced
Show the answer

A. No permission, no acceptance.

Question 2. Taking up references on the client and its directors is called:

  1. Client screening
  2. Lien
  3. Tendering
  4. Vouching
Show the answer

A. Client screening.

Question 3. An existing auditor who has relevant matters to disclose must:

  1. Say only that unspecified facts exist
  2. Tell the prospective auditor the facts he thinks the newcomer should know
  3. Refuse to reply
  4. Tell the press
Show the answer

B. Stating that unspecified facts exist is not enough.

Question 4. A communication from the old auditor about the client is protected by:

  1. Qualified privilege, if made without malice
  2. Absolute immunity
  3. No protection
  4. The client’s consent only
Show the answer

A. Even if the statements prove untrue.

Question 5. The lien of an auditor is a:

  1. General lien over all client property
  2. Particular lien over books and records on which he did work
  3. Lien over bank accounts
  4. Lien over shares
Show the answer

B. Particular.

Question 6. Audit working papers generally belong to:

  1. The auditors
  2. The client
  3. The regulator
  4. The shareholders
Show the answer

A. Unless the engagement letter or law says otherwise.

Question 7. Before accepting an audit previously done by another member, a member must ensure that the other member:

  1. Has been properly removed and fees paid
  2. Has retired
  3. Has changed firm
  4. Has agreed a discount
Show the answer

A. Properly removed from office and paid in full.

Question 8. Client identification for a company includes obtaining:

  1. A certificate of incorporation
  2. A driving licence
  3. A passport only
  4. A tax return
Show the answer

A. Plus evidence of address.

Question 9. A firm asked to do additional work related to another accountant’s continuing work should normally:

  1. Tell no one
  2. Notify the other accountant
  3. Ask the other accountant’s consent to charge
  4. Take over the work entirely
Show the answer

B. Notification should always be given.

Question 10. Which CAMA sections deal with removal, resignation and the resigning auditor’s right to requisition a meeting?

  1. 409, 412 and 413
  2. 401 and 403
  3. 404 only
  4. 407 and 410
Show the answer

A. 409, 412 and 413.

Written questions

Question 11 (10 marks). Describe the procedures a firm should follow before accepting a new audit appointment, including client identification.

Question 12 (20 marks). (a) Describe the process of professional enquiry of an existing auditor. (10 marks) (b) Explain the rules on unpaid fees, confidentiality and defamation in a change of auditor. (5 marks) (c) Explain the right of lien and the ownership of working papers. (5 marks)

Question 13 (10 marks). Eze and Co is asked to audit Prime Textiles Ltd. The current auditors resigned because they lacked resources, the company is under regulatory investigation and has unresolved weaknesses in controls. The board wants the audit fee kept low because it plans a bank loan. Discuss the issues Eze should consider before accepting. (10 marks)

Model answers

Show the model answer to Question 11

Procedures. Assess professional problems, such as lack of independence, lack of technical expertise or a conflict of interest (2). Make sure resources are available, in particular enough staff of the right level at the right time (1.5). Take up references on the client and directors if unknown (client screening) (1.5). Communicate with the existing auditors through professional enquiry (1.5). Make sure the previous auditor was properly removed and fees paid (1).

Client identification. To meet anti-money laundering rules, confirm the client is who it says. For a company, get a certificate of incorporation and evidence of address such as headed paper; for an individual, a passport or driving licence and perhaps a utility bill. Consider whether the business makes commercial sense, since a front for illegal activity may not. Explain to the client that it is a regulatory requirement. (2.5)

Show the model answer to Question 12

(a) Professional enquiry (10 marks). The member explains to the prospective client that he has a duty to communicate with the existing auditor (1). The client’s permission is required, and if refused the appointment must not be accepted (1.5). If the client does not allow the current auditor to reply, the current auditor tells the prospective auditor, who should then not accept (1).

The existing auditor must reply without delay, writing that there is nothing if that is so (1), or giving the facts he thinks the newcomer should know, not merely saying facts exist (1.5). A meeting may be held and each keeps a record (1).

If the old auditor reports a conflict of views with the client, the successor discusses it and satisfies himself that the client’s view is reasonable or that the client will accept a contrary opinion (1). If no reply, try other means, then a final recorded-delivery letter with a deadline, after which he may assume nothing needs to be raised, and he may complain to the Institute (1.5). If satisfied, he informs the client in writing (0.5).

(b) Fees, confidentiality, defamation (5 marks). The member must not accept without making sure the other member was properly removed and paid in full (1.5). Information from the existing auditor is treated in confidence, though disclosure to the client’s officers may be needed for matters to be investigated, no wider than necessary (1.5).

The old auditor is protected by qualified privilege, so is not liable for defamatory statements, even if untrue, if made without malice (2).

(c) Lien and working papers (5 marks). A lien is a right to keep property until amounts due are paid (1). It is a particular lien over books and records on which he did work, applying only if lawfully held, invoiced and not disputed (2). In some countries it cannot be used over records the client must keep by law (1).

Working papers generally belong to the auditor, but a reasonable handover of information is expected (1).

Show the model answer to Question 13

Professional enquiry (2 marks). Eze must seek the client’s permission to contact the current auditors and find out why they resigned, and must not accept if refused. The stated reason of lack of resources should be checked. (2)

Reputation and advocacy (2 marks). The regulatory investigation may harm the firm’s image and may lead to legal action in which the firm is expected to defend the company, an advocacy threat. (2)

Audit risk (3 marks). Unresolved weaknesses in controls mean high control risk, and the bank loan gives management an incentive to show strong results, so misstatement risk is high (2). The firm might consider a disclaimer in the report to limit liability to the bank (1).

Fee and opening balances (2 marks). High risk calls for careful work on opening balances, which needs time and cost that a board wanting a low fee may refuse. Eze should not quote a fee that compromises quality. (2)

Conclusion (1 mark). There is no evidence of fraud, so Eze may accept if the enquiry is satisfactory and fees are agreed. (1)

Pathfinder on changes in professional appointment

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.

May Diet, 2026: Question 7(a) (part of 6 marks)

Risks found at client acceptance include the reason for a change of auditor. This topic gives the professional enquiry and the checks before accepting.

Revise first: Professional enquiry of the existing auditor

November Diet, 2025: Question 1(c) (part of 7 marks)

A second firm is asked for a view while the audit continues. The rule on additional work, which requires notifying the existing accountant, is in this topic; the second opinion rules are in the topic on confidentiality and conflicts.

Revise first: Professional enquiry of the existing auditor

Section A of each diet (compulsory case question, 30 marks)

Section A is a single compulsory case with several requirements. It has drawn on ethics, quality management, group audits and reporting. Practise the scenario method in this topic 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.

Spotted a mistake? Tell us and we will check it.

Where this fits

See every past question on Advanced Audit, Assurance and Forensics and the topic each one tests in the Pathfinder question finder.

This course builds on Audit, Assurance and Forensics. After it, move on to Case Study.

All Advanced Audit, Assurance and Forensics topics

You are reading topic 16 of 64.

  1. The meaning of assurance, audit and audit-related services01
  2. Why audit is regulated: the FRC Act, FRC rules and the Audit Regulation 202002
  3. Appointment, removal, resignation, rights and duties of auditors under CAMA 202003
  4. Professional standards and how audit standards are set04
  5. Corporate governance, its codes and the audit committee05
  6. ISA 250 and money laundering06
  7. The fundamental ethical principles07
  8. Independence: threats and relationships with audit clients08
  9. Non-audit services and safeguarding independence09
  10. Confidentiality, conflicts of interest, second opinions and corporate financial advice10
  11. The expectations gap and the causes of audit failure11
  12. Fraud and error: ISA 24012
  13. The auditor’s liability and how to manage it13
  14. Quality management in firms: ISQM 114
  15. ISA 220, engagement partner responsibility and risk before acceptance15
  16. Changes in a professional appointment16 here
  17. Obtaining professional work, fees and tendering17
  18. Agreeing the terms of an engagement: ISA 21018
  19. Audit strategies and the business risk approach19
  20. The systems-based and statement of financial position approaches20
  21. Audit planning: ISA 200 and ISA 30021
  22. Audit risk and the audit risk model22
  23. Linking business risk to risks of material misstatement and responding to them23
  24. Materiality: ISA 32024
  25. Computers in auditing and IT controls25
  26. Not-for-profit and public sector audits26
  27. Audit evidence, assertions and audit sampling27
  28. Audit documentation: ISA 23028
  29. Related parties: ISA 55029
  30. Written representations and the auditor’s expert: ISA 580 and ISA 62030
  31. Reliance on internal audit and auditing accounting estimates: ISA 610 and ISA 54031
  32. Auditing specific areas of the financial statements32
  33. Auditing transaction cycles33
  34. Evaluating misstatements, opening balances and comparatives34
  35. Subsequent events: ISA 56035
  36. Going concern: ISA 57036
  37. Group audits and working with component auditors37
  38. Joint audits, the consolidation process and group communication38
  39. Review engagements and due diligence39
  40. Agreed-upon procedures and compilation engagements40
  41. Investigations and reports on internal control over financial reporting41
  42. Liquidation, bankruptcy, receivership and administration42
  43. Assurance engagements and ISAE 300043
  44. Assurance on risk, performance, value for money, systems and e-commerce44
  45. Prospective financial information: ISAE 340045
  46. Pro forma information in a prospectus: ISAE 3420, and reporting accountants46
  47. Forensic accounting, investigation and audit47
  48. Internal audit and its types48
  49. Outsourcing and service organisations: ISA 40249
  50. The auditor’s report: true and fair view and the ISA 700 structure50
  51. Key audit matters, other information and CAMA 2020 reporting51
  52. Modified opinions: ISA 70552
  53. Emphasis of matter and other matter paragraphs: ISA 70653
  54. Opening balances, comparatives and going concern in the auditor’s report54
  55. Communicating with those charged with governance and about control deficiencies: ISA 260 and ISA 26555
  56. Specialised audit reports: ISA 800 and ISA 81056
  57. The impact of information technology on audit, and audit tools57
  58. Governance, risk and compliance software, and COBIT58
  59. E-business risks, digital forensics and robotics in audit59
  60. Data protection: the NDPR and the NITDA Act60
  61. Ethical issues and the structure of the auditing profession61
  62. Transnational audits and the audit of small companies62
  63. Social and environmental reporting and assurance63
  64. Emerging technologies and the audit changes in CAMA 202064
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