AUI2601: Auditing Theory and Practice Study Guide (UNISA BCompt)

This study guide provides comprehensive, exam-focused notes for AUI2601 Auditing Theory and Practice as offered in the UNISA BCompt in Financial Accounting qualification. It is written for South African students preparing for AUI2601 exams and assignments, and it aligns closely with the style of questions and outcomes used at UNISA and similar institutions (such as CUT, UJ, UP, and NWU) in introductory auditing modules. Use it alongside your official UNISA study material, past papers, and tutorials for maximum benefit.

1. Overview of Auditing for AUI2601 (UNISA BCompt)

1.1 What is Auditing?

In AUI2601, auditing is primarily about independent verification of financial information to enhance its reliability for users. A commonly accepted definition is:

Auditing is a systematic process of objectively obtaining and evaluating evidence regarding assertions about economic actions and events, to ascertain the degree of correspondence between those assertions and established criteria, and communicating the results to interested users.

Key elements of this definition, as examined in AUI2601 exams:

  • Systematic process
    The audit is planned, structured and documented. Auditors do not randomly inspect records; they follow formal procedures guided by International Standards on Auditing (ISAs) and local regulations (e.g. Companies Act in South Africa).

  • Objectively obtaining and evaluating evidence
    The auditor must be independent in mind and appearance; evidence must be gathered without bias. Evidence includes:

    • Documents (invoices, contracts, bank statements)
    • Physical inspection (inventory counts)
    • Confirmations (from banks, creditors, debtors)
    • Analytical procedures (ratio analysis, trend analysis)
    • Recalculations and re-performance
  • Assertions about economic actions and events
    Assertions are the claims made by management in the financial statements. For example, that inventory exists, is owned by the entity, and is valued correctly.

  • Established criteria
    Most often International Financial Reporting Standards (IFRS) or IFRS for SMEs in South Africa, plus relevant legislation like the Companies Act 71 of 2008 and, in some cases, Public Finance Management Act (PFMA).

  • Communicating results
    Normally via the independent auditor’s report attached to the financial statements. In AUI2601 you must know standard wording and types of opinions.

1.2 Types of Assurance and Engagements

AUI2601 places audit within the broader field of assurance. Understanding how audits compare to reviews, compilations, and agreed-upon procedures is a frequent exam theme.

1.2.1 Assurance Engagements

An assurance engagement is one in which a practitioner expresses a conclusion designed to enhance the degree of confidence of intended users about the outcome of the evaluation or measurement of a subject matter against criteria.

Components of an assurance engagement:

  1. Three-party relationship

    • Practitioner (auditor)
    • Responsible party (management)
    • Intended users (shareholders, banks, etc.)
  2. Subject matter
    Financial statements, sustainability information, internal control, compliance, etc.

  3. Suitable criteria
    IFRS, IFRS for SMEs, legislation, codes of practice.

  4. Evidence
    Sufficient appropriate evidence obtained via audit procedures.

  5. Assurance report
    Written report providing a conclusion.

1.2.2 Reasonable vs Limited Assurance

  • Reasonable assurance (typical audit):

    • High, but not absolute, level of assurance.
    • Conclusion is positively phrased:
      “In our opinion, the financial statements present fairly, in all material respects…”
  • Limited assurance (typical review):

    • Moderate level of assurance.
    • Less work than an audit, primarily inquiry and analytical procedures.
    • Conclusion is negatively phrased:
      “Nothing has come to our attention that causes us to believe…”

AUI2601 exam questions often ask you to distinguish these in terms of:

  • Level of assurance
  • Nature and extent of procedures
  • Cost and time
  • Type of conclusion wording

1.2.3 Types of Engagements (South African Context)

Common engagements tested in AUI2601:

  • Audit of financial statements
    Reasonable assurance, most common in companies and public interest entities.

  • Review engagement
    Limited assurance; often used by smaller companies or close corporations where full audit is not required.

  • Compilation engagement
    No assurance. The accountant assists with preparation of financial statements but does not provide an audit opinion.

  • Agreed-upon procedures (AUP)
    No assurance. The practitioner performs specific, agreed procedures and reports factual findings only.

Comparative table to assist AUI2601 exam preparation:

Feature Audit (Reasonable Assurance) Review (Limited Assurance) Compilation / AUP
Level of assurance High (reasonable) Moderate (limited) None
Report wording Positive (“In our opinion…”) Negative (“Nothing has come to our attention…”) Descriptive / factual only
Nature of procedures Tests of controls and substantive testing Primarily inquiry and analytical procedures As agreed (AUP) or preparation (comp.)
Typical user Shareholders, lenders, regulators Lenders for SMEs, owners of small entities Management only
Cost and time Higher Medium Lower

1.3 The South African Auditing Environment

UNISA AUI2601 expects students to link theory to the local regulatory environment:

  • Regulatory bodies:

    • Independent Regulatory Board for Auditors (IRBA) – regulates registered auditors in South Africa.
    • South African Institute of Chartered Accountants (SAICA) – professional body for CAs(SA); issues guidelines and codes.
    • Companies and Intellectual Property Commission (CIPC) – enforces Companies Act.
  • Companies Act 71 of 2008:

    • Introduced the public interest score (PIS) concept that determines whether a company must be audited, reviewed, or can elect a compilation.
    • Higher PIS (e.g. >350) typically requires an audit for private companies.
  • Public sector auditing:

    • Auditor-General South Africa (AGSA) performs audits on national, provincial and municipal departments and entities in terms of the Constitution and PFMA/MFMA.

Understanding how audits fit into this environment helps answer discussion and application questions in AUI2601.

1.4 Objectives of an Audit of Financial Statements

The overall objective of the auditor, as per ISA 200, is:

  1. To obtain reasonable assurance about whether the financial statements as a whole are free from material misstatement, whether due to fraud or error, thus enabling the auditor to express an opinion on whether the financial statements are prepared, in all material respects, in accordance with an applicable financial reporting framework; and
  2. To report on the financial statements and communicate as required by the ISAs, in accordance with the auditor’s findings.

Breakdown for exam purposes:

  • Reasonable assurance – high level but not absolute; unavoidable risk that some misstatements may not be detected.
  • Material misstatement – misstatements that could reasonably influence economic decisions of users.
  • Fraud vs error – fraud involves intentional misrepresentation; error is unintentional.

1.5 Limitations of an Audit

Exam questions often test your understanding of why an audit cannot provide absolute assurance:

  • Use of sampling
    Auditors test samples, not every transaction; there is always sampling risk.

  • Inherent limitations of internal control
    Collusion, management override, and human error can defeat even strong controls.

  • Estimates and judgement
    Financial statements contain estimates (e.g. provisions, impairments) that are inherently uncertain.

  • Cost-benefit considerations
    Audits must be cost-effective; auditors do not perform every possible procedure.

  • Timing
    Most audit evidence is gathered after year-end; some transactions may not yet be fully settled.

Link each limitation to why absolute assurance is impossible and how this influences the wording of the audit opinion.

2. Professional Ethics, Independence and Governance (UNISA AUI2601 / AUD2601 Themes)

2.1 Professional Ethics Framework (South Africa)

Auditors must act according to high ethical standards. AUI2601 refers to the IRBA Code of Professional Conduct, based on the IESBA Code. Key fundamental principles:

  1. Integrity

    • Be straightforward and honest in all professional and business relationships.
    • No deliberate misrepresentation or omission.
  2. Objectivity

    • Do not allow bias, conflict of interest, or undue influence to override professional or business judgments.
  3. Professional Competence and Due Care

    • Maintain professional knowledge and skill at the level required; act diligently and in accordance with applicable technical and professional standards.
  4. Confidentiality

    • Respect the confidentiality of information acquired; do not disclose without proper authority or legal duty.
  5. Professional Behaviour

    • Comply with relevant laws and regulations and avoid any conduct that discredits the profession.

A common AUI2601 question: describe or apply these principles to a practical scenario (e.g. an auditor accepting gifts from a client).

2.2 Threats to Compliance with Ethical Principles

The IRBA Code identifies five categories of threats:

  1. Self-interest threat

    • E.g. auditor has a financial interest in the client (shares, loan, unpaid fees).
  2. Self-review threat

    • Auditor audits their own work (e.g. firm both prepares and audits the financial statements).
  3. Advocacy threat

    • Auditor promotes a client’s position or opinion (e.g. representing them in court).
  4. Familiarity threat

    • Long or close relationship leads to excessive sympathy or trust (e.g. same engagement partner for many years).
  5. Intimidation threat

    • Actual or perceived pressure (e.g. client threatens to replace the auditor).

You must be able to:

  • Identify which threat applies in a scenario.
  • Suggest safeguards to reduce the threat to an acceptable level.

2.3 Independence: In Mind and In Appearance

Independence is critical in AUI2601 and is often linked to ethics questions.

  • Independence of mind

    • Internal state of objectivity and lack of bias. The auditor is actually unbiased.
  • Independence in appearance

    • External perception that the auditor is independent, important for public confidence.

Examples of independence issues:

  • Financial interests

    • Owning shares in a client is usually prohibited for audit team members.
  • Close business relationships

    • Joint ventures or significant business dealings with the client can impair independence.
  • Family and personal relationships

    • Close family member employed in a key position at the client may be a problem.
  • Non-audit services

    • Providing certain services (e.g. bookkeeping, internal audit) to an audit client may create self-review threats.

2.4 Corporate Governance in the South African Context

In AUI2601, governance is usually examined through the lens of King IV™ Report on Corporate Governance for South Africa and the Companies Act.

2.4.1 Key Governance Structures

  • Board of Directors

    • Responsible for governance, overall direction, tone at the top.
  • Audit Committee

    • Required for public companies and certain others. Oversees:
      • Financial reporting
      • Internal audit
      • External audit (appointing auditor, reviewing independence)
      • Risk management (in some entities)
  • Internal Audit

    • Independent assurance and consulting activity to add value and improve operations.
  • Company Secretary

    • Ensures compliance with laws, regulations, and board procedures.

2.4.2 King IV™ Principles Relevant to Auditing

Selected principles that often link to exam questions:

  1. Ethical and effective leadership by the governing body

    • Board must set ethical tone, which impacts internal control and the risk of fraud.
  2. Governing structures and delegation

    • Proper establishment of audit committees and other board committees.
  3. Risk and opportunity governance

    • The board ensures that risk (including financial reporting risk) is properly managed.
  4. Technology and information governance

    • Important as most evidence comes from IT-based systems.
  5. Assurance

    • Combined assurance model: internal audit, external audit, management and other assurance providers work together to avoid gaps and duplications.

Understanding how good corporate governance reduces audit risk and enhances reliability of financial statements is important in AUI2601 essays and discussion questions.

2.5 Professional Skepticism and Professional Judgement

Two crucial concepts repeatedly emphasised in UNISA AUI2601 and similar courses like AUD2601 at CUT or ACC300 at UJ:

  • Professional skepticism

    • An attitude that includes a questioning mind and a critical assessment of audit evidence.
    • Being alert to:
      • Evidence that contradicts other evidence
      • Conditions indicative of fraud
      • Information that brings into question reliability of documents
  • Professional judgement

    • Application of relevant training, knowledge and experience to make informed decisions about:
      • Materiality
      • Assessing risks
      • Selecting audit procedures
      • Evaluating evidence
      • Forming conclusions

AUI2601 exam questions often present short case studies and ask whether the auditor exercised adequate professional skepticism or judgement.

2.6 Ethical Decision-Making: Exam-Style Application

A typical exam-style scenario:

The audit senior of Thabo & Co, Registered Auditors, has been offered a discounted holiday package by the financial director of a major audit client, MegaBuild (Pty) Ltd. The discount is not available to the public. Discuss the ethical issues and recommend appropriate action.

Approach:

  1. Identify ethical principles:

    • Threats: self-interest and possibly familiarity.
    • Fundamental principles: integrity, objectivity, professional behaviour.
  2. Assess significance:

    • Is the gift significant in value?
    • Is it intended to influence the auditor?
  3. Safeguards:

    • Decline the gift.
    • Inform engagement partner and possibly audit committee.
    • Firm’s policies on gifts and hospitality.
  4. Conclusion:

    • To maintain independence and objectivity, the offer should generally be declined.

Being able to structure your answer logically (identify principle, identify threat, propose safeguards, conclude) is key for AUI2601 ethics questions.

3. Audit Risk, Internal Control and Planning (Core AUI2601 Theory)

3.1 The Audit Risk Model

Audit risk is the risk that the auditor expresses an inappropriate opinion when the financial statements are materially misstated.

ISA 200 and ISA 315 express audit risk as:

Audit Risk (AR) = Inherent Risk (IR) × Control Risk (CR) × Detection Risk (DR)

  • Inherent Risk (IR)
    Susceptibility of an assertion to a misstatement that could be material, before considering any related controls.

  • Control Risk (CR)
    Risk that a misstatement could occur and not be prevented, detected or corrected on a timely basis by the entity’s internal control.

  • Detection Risk (DR)
    Risk that the auditor’s procedures will not detect a misstatement that exists and that could be material.

For AUI2601 exams, you must:

  • Explain each component.
  • Describe factors affecting them.
  • Show how they affect the nature, timing, and extent of audit procedures.

Example:

  • High IR and high CR (e.g. complex revenue recognition with weak controls) → auditor must lower DR by:
    • Performing more extensive and effective procedures,
    • At year-end rather than interim,
    • Using more reliable evidence.

3.2 Understanding the Entity and Its Environment

ISA 315 requires the auditor to obtain an understanding of:

  • The entity and its environment (including industry).
  • The entity’s internal control.
  • The applicable financial reporting framework.

Key areas:

  • Industry, regulatory and other external factors
    Economic conditions, competition, regulation.

  • Nature of the entity
    Operations, ownership, governance, investments, structure.

  • Objectives, strategies and related business risks
    Expansion plans, financing models.

  • Measurement and review of financial performance
    KPIs used by management (e.g. margins, debt ratios).

This understanding feeds into:

  • Risk assessment (IR and CR).
  • Materiality assessment.
  • Design of audit procedures.

3.3 Internal Control: Components and Objectives

Internal control is a process, designed and implemented by those charged with governance and management, to provide reasonable assurance about the achievement of objectives in:

  • Effectiveness and efficiency of operations
  • Reliability of financial reporting
  • Compliance with applicable laws and regulations

3.3.1 Components of Internal Control (COSO Model)

  1. Control Environment

    • Integrity and ethical values
    • Commitment to competence
    • Board of directors and audit committee participation
    • Management’s philosophy and operating style
    • Organisational structure
    • Human resource policies and practices
  2. Entity’s Risk Assessment Process

    • How management identifies and responds to business risks that might affect financial reporting.
  3. Information System and Communication

    • Procedures and records to:
      • Initiate, record, process and report entity transactions.
      • Maintain accountability for assets and liabilities.
  4. Control Activities

    • Policies and procedures that help ensure directives are carried out:
      • Authorisations
      • Performance reviews
      • Information processing controls (IT)
      • Physical controls
      • Segregation of duties
  5. Monitoring of Controls

    • Ongoing activities and separate evaluations (e.g. internal audit) to ensure controls continue to operate effectively.

In AUI2601, short questions often ask for definitions, examples, and implications for the audit plan.

3.4 Tests of Controls vs Substantive Procedures

Auditors use two main categories of procedures:

  • Tests of Controls

    • To obtain evidence about the operating effectiveness of controls in preventing, detecting or correcting misstatements.
  • Substantive Procedures

    • To detect material misstatements at the assertion level:
      • Tests of details (e.g. vouching invoices)
      • Substantive analytical procedures (e.g. ratio analysis)

The choice depends on risk assessment and control effectiveness:

  • If controls are strong and reliance is planned → perform tests of controls to reduce substantive testing.
  • If controls are weak or not reliable → perform more substantive procedures, rely less on controls.

Exam focus:

  • Explaining differences.
  • Giving examples for specific cycles (e.g. revenue, purchases).
  • Designing reasonable procedures based on a given scenario.

3.5 The Audit Process and Planning (AUI2601 Emphasis)

A typical audit (for a company in the UNISA context) follows these broad stages:

  1. Client Acceptance and Continuance
  2. Planning the Audit
  3. Performing Risk Assessment and Understanding Internal Control
  4. Designing and Performing Further Audit Procedures
  5. Concluding and Reporting

3.5.1 Client Acceptance and Continuance

Before accepting or retaining a client, the auditor must:

  • Evaluate integrity of management.
  • Assess independence and ethical issues.
  • Consider competence and resources.
  • Communicate with predecessor auditor (where allowed).
  • Decide whether engagement is acceptable.

If not acceptable (e.g. evidence of fraudulent management, serious independence issues), the auditor must decline the engagement.

3.5.2 Audit Engagement Letter

Once accepted, the auditor issues an engagement letter to:

  • Confirm:
    • Objective and scope of audit.
    • Responsibilities of auditor and management.
    • Applicable financial reporting framework.
    • Expected form and content of reports.
  • Help avoid misunderstandings.

Typical content for an engagement letter (exam list question):

  • Addressee
  • Objective and scope
  • Auditor’s responsibilities
  • Management’s responsibilities
  • Identification of applicable framework
  • Reference to any other reports to be issued
  • Basis for fees
  • Form of communication

3.5.3 Overall Audit Strategy and Detailed Audit Plan

  • Overall audit strategy:

    • Sets the scope, timing, and direction of the audit.
    • Considers characteristics of the engagement (e.g. locations, components, use of experts).
    • Guides development of the audit plan.
  • Audit plan:

    • More detailed description of the nature, timing, and extent of audit procedures.
    • Includes risk assessment procedures, tests of controls, and substantive procedures.

AUI2601 often tests whether students understand:

  • Why planning is necessary (efficient, effective audit, proper direction and supervision).
  • What documents must be prepared.
  • How planning is updated as the audit progresses.

3.6 Materiality and Performance Materiality

Materiality is central to audit planning and evaluation.

  • Overall Materiality:

    • Amount that could reasonably be expected to influence decisions of users.
    • Often based on a benchmark (e.g. 5% of profit before tax, 1% of total revenue or 1–2% of total assets).
  • Performance Materiality:

    • Set at less than overall materiality to reduce risk that unadjusted and undetected misstatements exceed overall materiality.
    • Applied at account balance, class of transactions, and disclosure level.
  • Trivial misstatement threshold:

    • Amount below which misstatements are regarded as clearly trivial and need not be accumulated.

Exam-style calculation example:

Profit before tax = R2 000 000. Firm’s policy: 5% of profit before tax for overall materiality. Performance materiality = 75% of overall materiality.

  • Overall materiality = 5% × R2 000 000 = R100 000
  • Performance materiality = 75% × R100 000 = R75 000

Be ready to:

  • Show simple calculations.
  • Justify why a particular benchmark and percentage is used.
  • Explain how materiality affects sample sizes, selection of procedures, and evaluation of misstatements.

3.7 Documentation and Working Papers

Auditors must prepare audit documentation sufficient to enable an experienced auditor, having no previous connection with the audit, to understand:

  • Nature, timing, and extent of audit procedures,
  • Results of those procedures,
  • Significant matters and conclusions reached.

Key types of working papers:

  • Permanent file (e.g. memorandum of association, long-term contracts).
  • Current file (e.g. current year’s trial balance, lead schedules, working papers for each cycle).
  • Administrative papers (audit plan, time budgets).

In AUI2601, you might be asked:

  • To explain purposes of audit documentation:
    • Evidence of compliance with ISAs and legal requirements.
    • Basis for audit report.
    • Facilitates planning, supervision, and review.
  • To list characteristics of good working papers:
    • Clear, complete, accurate, neat, properly cross-referenced, signed, and dated.

4. Audit Procedures, Evidence and Specific Cycles (UNISA AUI2601 Focus)

4.1 Assertions in Financial Statements

Audit procedures are directed at management assertions about classes of transactions, account balances and disclosures. For AUI2601, you should memorise the main assertions:

4.1.1 Assertions about Classes of Transactions and Events

  • Occurrence: Transactions recorded have actually occurred.
  • Completeness: All transactions that should have been recorded have been recorded.
  • Accuracy: Amounts and other data are recorded appropriately.
  • Cut-off: Transactions recorded in the correct accounting period.
  • Classification: Transactions have been recorded in the proper accounts.

4.1.2 Assertions about Account Balances

  • Existence: Assets, liabilities and equity interests exist.
  • Rights and Obligations: The entity holds or controls rights to assets, and liabilities are obligations of the entity.
  • Completeness: All assets, liabilities and equity interests that should be recorded are recorded.
  • Valuation and Allocation: Assets, liabilities and equity interests are included at appropriate amounts.

4.1.3 Assertions about Presentation and Disclosure

  • Occurrence and Rights and Obligations: Disclosed events and transactions have occurred and pertain to the entity.
  • Completeness: All disclosures that should have been included have been included.
  • Classification and Understandability: Disclosed information is appropriately presented and described.
  • Accuracy and Valuation: Information is disclosed fairly and at appropriate amounts.

In exam questions, you will often be required to:

  • Identify assertions relevant to a given procedure.
  • Suggest procedures to test a specific assertion.

4.2 Types of Audit Procedures

ISA 500 identifies main categories:

  1. Inspection

    • Inspection of records or documents (internal or external).
    • Inspection of tangible assets.
  2. Observation

    • Watching a process or procedure being performed (e.g. inventory count).
  3. Inquiry

    • Seeking information from knowledgeable persons (internal or external).
  4. Confirmation

    • Obtaining representation of information or an existing condition directly from a third party (e.g. bank confirmations).
  5. Recalculation

    • Checking mathematical accuracy (e.g. depreciation, interest).
  6. Re-performance

    • Independently performing procedures or controls originally performed as part of the entity’s internal control.
  7. Analytical Procedures

    • Evaluations of financial information through analysis of plausible relationships.

You must be able to:

  • Classify examples into these categories.
  • Explain the reliability hierarchy:
    • External vs internal evidence
    • Direct knowledge vs indirect
    • Written vs oral

4.3 Reliability and Sufficiency of Audit Evidence

  • Appropriateness: Quality of evidence (relevance and reliability).
  • Sufficiency: Quantity of evidence (affected by materiality and risk).

Factors affecting reliability:

  • Source:
    • External evidence is more reliable than internal.
  • Nature:
    • Written is more reliable than oral.
    • Direct observation or recalculation by the auditor is highly reliable.
  • Effectiveness of internal controls:
    • If controls are strong, internal evidence is more reliable.

In an AUI2601 question, you may be asked:

  • To rank evidence in terms of reliability.
  • To discuss whether evidence is sufficient and appropriate in a scenario.

4.4 Substantive Analytical Procedures

Analytical procedures involve:

  • Comparing recorded amounts with:
    • Prior periods
    • Budgets or forecasts
    • Industry norms
    • Auditor’s own expectations

Examples:

  • Gross profit percentage (GP%).
  • Receivables days (debtors collection period).
  • Inventory turnover.

Uses in audit:

  • Risk assessment (planning stage).
  • Substantive testing (reducing tests of details if reliable).
  • Final review (overall reasonableness).

To use analytical procedures as substantive tests, the auditor must:

  • Develop an expectation.
  • Evaluate the reliability of data used.
  • Define acceptable difference.
  • Investigate significant differences.

4.5 Audit of Revenue Cycle (Sales and Receivables) – Common UNISA Case Study

The revenue cycle is a regular feature in AUI2601 case-based questions and in related modules at other universities such as CUT’s AUD2601 or UJ’s ACC3003.

4.5.1 Typical Revenue Cycle Documents and Controls

Key documents:

  • Customer order
  • Credit approval
  • Sales order
  • Delivery note
  • Invoice
  • Monthly statements
  • Remittance advice (for receipts)

Typical controls:

  • Proper segregation of duties:
    • Credit approval vs sales vs recording vs custody of assets.
  • Pre-numbered documents and regular sequence checks.
  • Credit limits approved and reviewed.
  • Matching:
    • Sales order, delivery note, and invoice must agree.
  • Daily reconciliations:
    • Cash receipts to bank deposits.
  • Monthly statements sent to customers and follow-up of queries.

4.5.2 Revenue Assertions and Procedures

Key assertions and examples of substantive procedures:

  • Occurrence:
    • Select sample of recorded sales and vouch to supporting documents: customer order, delivery note, signed invoice.
  • Completeness:
    • Trace a sample of dispatch notes to sales invoices and sales journal.
    • Review sequence of invoices for gaps.
  • Accuracy:
    • Recalculate invoice totals, prices and discounts.
  • Cut-off:
    • Compare the last few delivery notes before and after year-end with sales journal.
  • Existence (trade receivables):
    • Send debtors confirmations (positive or negative).
    • Review subsequent receipts after year-end.
  • Valuation (trade receivables):
    • Review ageing analysis.
    • Assess adequacy of allowance for doubtful debts.
    • Review correspondence with customers for disputes.

You must be able to:

  • Design tests of controls and substantive procedures based on scenarios.
  • Identify control weaknesses and suggest improvements.
  • Link procedures to specific assertions.

4.6 Audit of Purchases and Payables Cycle

The purchases cycle is also commonly tested:

Documents:

  • Purchase requisition
  • Purchase order
  • Goods received note
  • Supplier’s invoice
  • Payment voucher / remittance

Controls:

  • Authorisation of purchase requisitions.
  • Approved suppliers list.
  • Three-way match: purchase order, goods received note, supplier’s invoice.
  • Segregation of duties (ordering, receiving, recording, paying).
  • Regular supplier statement reconciliations.

Key assertions:

  • Completeness:
    • Reconcile supplier statements to creditors ledger and general ledger.
    • Search for unrecorded liabilities close to year-end.
  • Occurrence:
    • Vouch a sample of recorded purchases to purchase orders, goods received notes and supplier invoices.
  • Cut-off:
    • Compare goods received notes around year-end to purchase day book.
  • Existence (payables):
    • Confirm with major suppliers (if applicable).
    • Review subsequent payments after year-end.

4.7 Audit of Inventory

Inventory is high-risk in many audits due to valuation and existence issues.

4.7.1 Attendance at Inventory Count

ISA 501 requires the auditor to attend the physical inventory counting when material, unless impracticable.

Main objectives:

  • Evaluate management’s count instructions and procedures.
  • Observe performance of management’s count procedures.
  • Inspect inventory.
  • Perform test counts.

Common exam tasks:

  • List procedures before, during, and after the inventory count.
  • Explain why attendance is important.

Procedures:

  • Before:

    • Review instructions.
    • Understand methods of counting and recording.
    • Identify high-risk items (high value, slow-moving).
  • During:

    • Observe adherence to instructions.
    • Perform test counts from floor to count sheets and from count sheets to floor.
    • Note obsolete or damaged items.
  • After:

    • Trace test counts to final inventory records.
    • Perform price testing and recalculation of extensions.
    • Evaluate write-downs for slow-moving stock.

4.7.2 Inventory Assertions and Procedures

  • Existence:
    • Physical inspection of items during count.
  • Rights and Obligations:
    • Review contracts, consignment agreements, goods held on behalf of third parties.
  • Completeness:
    • Ensure all locations are counted and included.
  • Valuation:
    • Test pricing (cost vs net realisable value).
    • Check costing methods (FIFO, weighted average).
    • Review for obsolescence (age analysis, slow-moving items).

4.8 Use of Experts and Other Auditors

In some audits, the auditor may need to use:

  • Auditor’s expert (e.g. property valuers, actuaries).
  • Management’s expert.
  • Other auditors (e.g. group audits).

Key points:

  • Must evaluate competence, capabilities and objectivity of experts.
  • Must obtain understanding of expert’s work and evaluate its adequacy.

AUI2601 may test shorter theoretical questions on how to assess the work of an expert and its impact on the audit opinion.

5. Completion, Reporting and Exam Strategy for AUI2601 (UNISA BCompt)

5.1 Completion and Final Review

Towards the end of the audit, the auditor performs:

  • Review of working papers and evidence obtained.
  • Evaluation of uncorrected misstatements.
  • Final analytical procedures.
  • Overall review of financial statements.
  • Subsequent events review.
  • Going concern assessment.
  • Letter of representation from management.

5.1.1 Evaluation of Misstatements

Auditor must:

  • Accumulate all identified misstatements (except clearly trivial).
  • Communicate misstatements to management.
  • Request correction.

If management refuses to correct, the auditor assesses whether uncorrected misstatements, both individually and in aggregate, are material.

  • Compare total uncorrected misstatements to overall and performance materiality.
  • Consider qualitative factors (e.g. if misstatement turns profit into loss).

5.1.2 Subsequent Events

Two types (ISA 560):

  1. Adjusting events: provide further evidence of conditions that existed at period-end (require adjustment).
  2. Non-adjusting events: indicative of conditions that arose after period-end (may require disclosure).

Procedures:

  • Read minutes of board meetings.
  • Inquire of management and legal counsel.
  • Review subsequent interim financial statements.
  • Inspect subsequent receipts and payments.

5.2 Going Concern

Management is responsible for assessing going concern; auditor evaluates this assessment.

Indicators of going concern problems:

  • Financial:

    • Net liability position.
    • Negative operating cash flows.
    • Loan defaults.
  • Operational:

    • Loss of major customer or key staff.
    • Labour disputes.
  • Other:

    • Legal proceedings.
    • Adverse government actions.

If material uncertainty exists, this affects the audit report (e.g. inclusion of a Material Uncertainty Related to Going Concern paragraph or modification if disclosures are inadequate).

5.3 Written Representations

ISA 580 requires the auditor to obtain written representations from management, including:

  • That they have fulfilled their responsibility for preparation of financial statements.
  • That they have provided all relevant information.
  • Completeness of related party information.
  • Specific representations about matters where other evidence is limited.

Remember:

  • Written representations do not replace other audit evidence.
  • They complement and support other evidence.

5.4 Auditor’s Report: Types of Opinions

A central area in AUI2601 is understanding the standard auditor’s report and various modified opinions.

5.4.1 Unmodified (Unqualified) Opinion

Issued when:

  • Financial statements are prepared, in all material respects, in accordance with applicable framework.
  • No material misstatements found.
  • No significant scope limitations.

Key components of a standard report (per ISA 700, in South African format):

  • Title (“Independent Auditor’s Report”)
  • Addressee (e.g. shareholders)
  • Opinion section
  • Basis for opinion
  • Key audit matters (for listed entities)
  • Responsibilities of management and those charged with governance
  • Auditor’s responsibilities
  • Other reporting responsibilities (if any)
  • Auditor’s signature, address, date

5.4.2 Modified Opinions (ISA 705)

Three types of modified opinion:

  1. Qualified Opinion
  2. Adverse Opinion
  3. Disclaimer of Opinion

Basis for modification:

  • Material misstatement (disagreement with management on accounting treatment or disclosure).
  • Inability to obtain sufficient appropriate evidence (limitation of scope).

Decision criteria (exam tip):

Circumstance Material but not pervasive Material and pervasive
Misstatements (disagreement) Qualified opinion Adverse opinion
Inability to obtain evidence (scope) Qualified opinion Disclaimer of opinion

Pervasive generally means:

  • Not confined to specific elements or accounts.
  • Represents substantial portion of statements.
  • Fundamental to users’ understanding.

5.4.3 Emphasis of Matter and Other Matter Paragraphs (ISA 706)

These do not modify the opinion but are used to draw attention:

  • Emphasis of Matter (EOM):

    • Refers to a matter appropriately presented/disclosed in financial statements, which is fundamental to understanding them.
    • Example: Significant uncertainty relating to ongoing litigation.
  • Other Matter:

    • Refers to a matter not presented or disclosed in financial statements but relevant to understanding audit, auditor’s responsibilities, or report.
    • Example: Auditor was not engaged to audit prior period financial statements.

AUI2601 questions may ask:

  • To classify a situation as requiring a modified opinion vs an EOM.
  • To justify chosen type of opinion.

5.5 Reporting on Other Legal and Regulatory Requirements

In South Africa, the auditor of a company must also report on:

  • Reportable irregularities (as per Auditing Profession Act).
  • Compliance with Companies Act requirements.

Understanding the concept of a reportable irregularity:

  • Any unlawful act or omission committed by management or those charged with governance that:
    • Has caused or is likely to cause material financial loss to the entity or stakeholders, or
    • Constitutes a material breach of fiduciary duty or law, or
    • May cause the entity to trade under insolvent circumstances.

Auditor’s duty:

  • Report to IRBA without delay when a reportable irregularity is identified or suspected.
  • Follow prescribed timelines and procedures.

5.6 Linking AUI2601 Content with Other South African University Modules

Although this guide is focused on UNISA AUI2601: Auditing Theory and Practice in the BCompt in Financial Accounting stream, many South African universities cover similar auditing fundamentals in their own modules:

  • Central University of Technology (CUT) – e.g. AUD2601 Auditing and ACC26AS Auditing and Assurance.
  • University of Johannesburg (UJ) – e.g. ACC3003 Auditing.
  • University of Pretoria (UP) – e.g. OBS2601 counterparts that touch risk and governance.
  • North-West University (NWU) – similar intermediate auditing units.
  • Durban University of Technology (DUT) – internal auditing and assurance modules.

Common threads across these courses:

  • Use of ISA standards.
  • Emphasis on South African regulatory environment (IRBA, Companies Act, King IV™).
  • Integration of ethics, risk, internal control, planning and reporting.

Students often search for:

  • AUI2601 exam notes
  • AUI2601 study guide UNISA
  • BCompt auditing theory practice notes
  • AUD2601 past exam solutions CUT

This guide is designed to align with those needs while remaining firmly based in UNISA’s AUI2601 assessment style.

5.7 AUI2601 Exam Strategy and Study Tips

5.7.1 Understand the Structure of the Exam

While UNISA may adjust the structure over time, typical features include:

  • Section A: Short questions (definitions, lists, basic application).
  • Section B: Longer, scenario-based questions.

Marks typically emphasise:

  • Application over pure theory.
  • Ability to analyse scenarios, identify risks, and recommend procedures.
  • Integrated understanding of ethics, internal control, and audit procedures.

5.7.2 How to Prepare Effectively

  1. Master the Core Definitions and Lists

    • Audit risk model components.
    • Fundamental principles of ethics.
    • Assertions for transactions and balances.
    • Types of opinions and circumstances for each.
  2. Practise Application with Past Papers

    • Use past UNISA AUI2601 exam papers and tutorial letters.
    • Time yourself under exam conditions.
    • Mark your answers critically against suggested solutions.
  3. Develop Scenario-Answering Technique

    For each case study:

    • Identify:
      • Issue (e.g. independence threat, control weakness).
      • Relevant principles/standards (ISA, ethics code, Companies Act).
    • Discuss:
      • Implications for audit risk.
      • Impact on audit procedures or opinion.
    • Conclude:
      • Clear recommendation or opinion.
  4. Link Topics Across the Syllabus

    Example:

    • For a revenue recognition scenario:
      • Consider inherent risk (complex contracts).
      • Evaluate internal controls.
      • Design tests of controls and substantive procedures.
      • Consider materiality.
      • Finally, decide on impact on audit opinion.
  5. Focus on High-Yield Topics

    Historically, UNISA and other SA universities place strong emphasis on:

    • Ethics and independence (IRBA Code).
    • Audit risk, internal control, and planning.
    • Revenue, purchases, and inventory cycles.
    • Types of audit reports and modifications.
    • Materiality and evidence evaluation.
  6. Use Structured Layouts in Your Answers

    Marker-friendly answers:

    • Use headings and numbered lists where appropriate.
    • Define term briefly.
    • Apply to scenario.
    • Provide examples.

5.7.3 Common Mistakes to Avoid in AUI2601

  • Giving generic answers without linking back to the scenario.
  • Confusing types of opinions (e.g. adverse vs qualified).
  • Failing to distinguish audit, review, compilation, and AUP.
  • Ignoring ethics and independence issues in case studies.
  • Not addressing the command verbs (describe, explain, evaluate, recommend).

5.8 Final Integration: What AUI2601 Expects You to Be Able to Do

By the end of AUI2601 (and similar modules like CUT’s AUD2601), you should be able to:

  1. Explain the role and purpose of auditing in South Africa, including assurance levels and different types of engagements.
  2. Apply professional ethics and independence requirements of the IRBA Code to practical auditing situations.
  3. Assess audit risk, understand and evaluate internal control systems, and design appropriate audit plans.
  4. Select and justify audit procedures for different assertions and cycles (revenue, purchases, inventory, cash, receivables, payables).
  5. Evaluate audit evidence, misstatements and subsequent events and reach reasoned conclusions.
  6. Draft or interpret auditor’s reports, including unmodified and modified opinions, and explain their implications.

Mastery of these outcomes, combined with consistent practice using UNISA AUI2601 past papers, tutorial letters, and your official prescribed material, will put you in a strong position to succeed in UNISA’s BCompt in Financial Accounting and to progress to more advanced auditing modules offered at UNISA and other South African universities.

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