Advanced Auditing, Assurance and Professional Ethics · General Auditing Principles and Auditors Responsibilities

Ethical Requirements and Professional Skepticism (SA 200) for CA Final

Updated 5 October 2026 · Fact-checked

Under SA 200, the auditor must comply with relevant ethical requirements, including independence, and must plan and perform the audit with professional skepticism. Professional skepticism is a questioning mind, alertness to conditions that may indicate misstatement, and critical assessment of evidence. In answers, state the provision, apply it to the facts, then conclude.

Understand Ethical Requirements and Professional Skepticism

An audit is only useful if users can trust the auditor. That trust rests on two things: the auditor behaves ethically and independently, and the auditor does not accept what management says without checking it. SA 200 puts both into the auditor's basic duties.

Ethical requirements. The auditor must comply with the relevant ethical requirements relating to an audit of financial statements. In India these are mainly the ICAI Code of Ethics, together with the Chartered Accountants Act and its Regulations. The fundamental principles are integrity, objectivity, professional competence and due care, confidentiality and professional behaviour. Independence is what protects objectivity. It has two sides: independence of mind (not being swayed by outside influence) and independence in appearance (avoiding facts that a reasonable third party would see as compromising your judgment).

For audit engagements, the auditor is required to be independent of the entity. Threats to independence include self-interest, self-review, advocacy, familiarity and intimidation. Where a threat exists, you apply safeguards. If safeguards cannot reduce the threat to an acceptable level, you decline or withdraw from the engagement, as the Code permits.

Professional skepticism is an attitude that includes a questioning mind, being alert to conditions that may indicate possible misstatement due to error or fraud, and a critical assessment of audit evidence. SA 200 requires you to plan and perform the audit with professional skepticism, recognising that circumstances may exist that cause the financial statements to be materially misstated. It applies throughout the audit, not only at the risk assessment stage.

Skepticism is not suspicion of everyone. You can still rely on records and on management's honesty unless you have reason to doubt them. But you must stay alert: inconsistent evidence, doubts about the reliability of documents, conditions suggesting fraud, or management responses that do not add up. Skepticism is needed to reduce the risk of overlooking unusual circumstances, over-generalising from observations, and using poor assumptions when choosing the nature, timing and extent of procedures.

Skepticism versus professional judgment. Skepticism is an attitude: how you look at evidence. Judgment is the application of training, knowledge and experience to decide on an action, such as the right materiality or the amount of evidence to gather. Skepticism supports good judgment, because judgment based on uncritically accepted evidence is weak.

Key rules to remember

Ethical requirements (SA 200): Auditor must comply with relevant ethical requirements, including independence, relating to financial statement audit engagements; In India, source is the ICAI Code of Ethics read with the Chartered Accountants Act and its Regulations.
Professional skepticism (SA 200): Professional skepticism = questioning mind + alertness to possible misstatement (error or fraud) + critical assessment of audit evidence; Must be maintained throughout planning and performance of the audit.
Fundamental principles: Integrity, Objectivity, Professional competence and due care, Confidentiality, Professional behaviour; Independence safeguards objectivity; it has independence of mind and independence in appearance.
Threats to independence: Self-interest, Self-review, Advocacy, Familiarity, Intimidation; Respond with safeguards; if the threat cannot be reduced to an acceptable level, decline or withdraw.
Skepticism vs judgment: Skepticism = attitude toward evidence; Judgment = applying training, knowledge and experience to reach decisions; Both are needed, and skepticism underpins sound judgment.

How to solve Ethical Requirements and Professional Skepticism questions

Use this sequence for any scenario or theory question on ethics or skepticism under SA 200.

1Identify what the question tests: an ethical or independence issue, a skepticism issue, or the difference between skepticism and judgment.
2State the SA 200 requirement in one or two lines, using its own key words (relevant ethical requirements, independence, questioning mind, critical assessment).
3List the facts that matter: relationships, fees, services, management explanations, inconsistent evidence, unusual documents.
4Classify each fact. For ethics, name the threat (self-interest, self-review, advocacy, familiarity, intimidation). For skepticism, name the red flag or the evidence that needs challenge.
5State the auditor's response: safeguards or withdrawal for threats; extra procedures, corroboration or reassessment of risk for skepticism.
6Conclude clearly: is the auditor compliant or not, and what should the auditor do next.
7Add a one-line link to the wider framework where useful, such as the Code of Ethics or professional misconduct.

Quickest way: Provision, Facts, Conclusion in three lines

When to use it: When you have little time, or for a 4 to 5 mark written answer or a case MCQ.

Write the requirement: auditor must comply with relevant ethical requirements including independence, and maintain professional skepticism.
Pick the two or three facts that trigger the rule and tag them (threat type or red flag).
Give the action and conclusion: safeguard or withdraw; corroborate evidence and extend procedures.
For MCQs, eliminate options that treat skepticism as distrust of management or that let the auditor accept unsupported explanations.

Common mistakes in Ethical Requirements and Professional Skepticism

Treating professional skepticism as assuming management is dishonest.
The word sounds like suspicion.
Fix: Define it as a questioning mind and critical assessment of evidence. You can accept records as genuine unless there is reason to doubt them.
Using skepticism and professional judgment as the same thing.
Both relate to the auditor's mindset and both appear in SA 200.
Fix: Skepticism is an attitude toward evidence; judgment is applying training, knowledge and experience to decisions. Give one example of each.
Applying skepticism only at the risk assessment stage.
Students link it to fraud risk discussion alone.
Fix: State that it applies throughout planning and performance, including evaluating evidence and forming conclusions.
Saying independence concerns only actual conduct and ignoring appearance.
Focus on the auditor's own honesty.
Fix: Mention both independence of mind and independence in appearance, and say a reasonable observer's view matters.
Naming a threat but giving no response.
Answers stop after identification.
Fix: Always add safeguards, or decline or withdraw where safeguards cannot reduce the threat to an acceptable level.
Accepting a management explanation without corroboration in a case.
The explanation sounds reasonable.
Fix: Say the auditor should obtain independent evidence and consider whether the inconsistency indicates error or fraud.

Worked examples

Example 1

Case: You are the statutory auditor of Sunrise Ltd. During the year your firm also prepared the company's books of account and drafted its financial statements from the trial balance. The CFO says this saves time and the audit fee remains the same. Your engagement partner says the firm has strong internal checks. Advise whether the ethical requirements of SA 200 are met.

Show the solution

Provision: SA 200 requires the auditor to comply with relevant ethical requirements, including independence, under the ICAI Code of Ethics. Because Sunrise Ltd is a company, the Companies Act, 2013 also applies.
Statutory position: Section 144 of the Companies Act, 2013 itself prohibits a statutory auditor from providing certain services, such as accounting and book-keeping, to the company, its holding company or its subsidiary. This is the statutory prohibition. It applies regardless of safeguards. Section 141 deals separately with the disqualification of auditors, such as certain relationships and indebtedness. It is not the source of this prohibition.
Facts: the firm prepared the books and the financial statements that it will then audit.
Code of Ethics classification: this is a self-review threat, as the firm would be auditing its own work. It also affects independence in appearance. Under the Code alone, such services are not automatically barred and are allowed only if safeguards bring the threat to an acceptable level. Here the statute removes that option.
Assessment: internal checks within the same firm are a safeguard of limited value and cannot override the statutory bar. The fee being unchanged does not help, because the prohibition depends on the nature of the service, not on whether extra fees are earned. An unchanged fee also does not remove the self-review threat.
Response: the services are prohibited. The firm must stop providing accounting and book-keeping services to Sunrise Ltd, or it cannot continue as its statutory auditor and should withdraw from the audit.

Answer: The ethical and independence requirements are not met. Section 144 of the Companies Act, 2013 itself prohibits the statutory auditor from providing accounting and book-keeping services to the company, its holding company or its subsidiary, regardless of safeguards. The work also creates a self-review threat under the Code of Ethics. Neither internal checks nor an unchanged fee cures this. The firm must stop the services or not act as auditor of Sunrise Ltd.

Example 2

Case: In auditing Rao Traders Pvt Ltd, you note that closing inventory is ₹48,00,000 as per the stock register. Management says the figure is correct and gives a verbal explanation that goods worth ₹6,00,000 are lying with a third-party warehouse. The warehouse confirmation received is dated after year end and states ₹3,50,000. The junior auditor suggests accepting the management explanation because management has been honest in earlier years. Explain how professional skepticism applies.

Show the solution

Provision: SA 200 requires planning and performing the audit with professional skepticism, including critical assessment of audit evidence and alertness to conditions indicating possible misstatement.
Facts: management's verbal claim of ₹6,00,000 is not supported by the third party, whose confirmation shows ₹3,50,000.
Difference: ₹6,00,000 - ₹3,50,000 = ₹2,50,000 is unexplained. This is an inconsistency between evidence sources.
Reasoning: past honesty does not remove the need to assess current evidence critically. A verbal explanation is weaker than external written evidence.
Action: ask management to reconcile the difference, examine dispatch and transfer documents, consider testing the warehouse records or a physical check, and reassess the risk of misstatement and whether fraud indicators exist.
Conclusion: if unresolved, evaluate the ₹2,50,000 as a misstatement against materiality and consider the effect on the auditor's opinion.

Answer: The junior's view is wrong. Professional skepticism requires the auditor to challenge the unsupported verbal explanation, investigate the unexplained ₹2,50,000 difference with corroborating evidence, and evaluate any uncorrected misstatement for its effect on the audit opinion.

Exam tips

For case MCQs on independence, first name the threat type. The correct option usually matches the threat and the proper response.
In written answers, use the provision-facts-conclusion pattern and quote key words such as questioning mind, critical assessment and independence of mind and in appearance.
If asked for the difference between skepticism and judgment, write a short two-column style comparison in bullets: nature, purpose and example.
Do not claim skepticism means distrust. Examiners reward the balanced position that evidence is assessed critically.
Link the topic to fraud, estimates and management representations when the case shows inconsistent or weak evidence.

Practice questions from General Auditing Principles and Auditors Responsibilities

Ethical Requirements and Professional Skepticism: frequently asked questions

What is professional skepticism under SA 200?

It is an attitude that includes a questioning mind, alertness to conditions that may indicate misstatement due to error or fraud, and critical assessment of audit evidence. SA 200 requires the auditor to maintain it throughout the audit.

What is the difference between professional skepticism and professional judgment?

Skepticism is the attitude with which you assess evidence. Judgment is applying your training, knowledge and experience to decide what to do, such as how much evidence is enough. Sound judgment depends on a skeptical approach to evidence.

Which ethical requirements apply to an auditor under SA 200?

The auditor must comply with the relevant ethical requirements relating to financial statement audits, including independence. In India this means the ICAI Code of Ethics along with the Chartered Accountants Act and its Regulations.

Can the auditor rely on management's past honesty?

Past experience may inform your risk assessment, but it does not replace critical assessment of current evidence. You must stay alert to inconsistencies and gather corroboration where evidence is doubtful.