Businesses may require different types of audits to maintain compliance, improve financial accuracy, and manage potential risks. An auditor is a qualified professional who examines specific areas of a business to verify accuracy, identify discrepancies, and ensure that applicable rules and regulations are followed.
The right type of auditor depends on the nature and requirements of the business. Common types include internal auditors, statutory auditors, cost auditors, tax auditors, secretarial auditors, forensic auditors, government auditors, compliance auditors, and IT auditors.
Each type focuses on a specific area of business operations, helping organisations identify risks, strengthen internal controls, meet regulatory requirements, improve transparency, and make informed business decisions.
Here are the common types of auditors and their roles in businesses:
Internal auditors review a company’s financial processes, internal controls, risk management systems and operational efficiency. They help identify weaknesses, inefficiencies and potential risks before they develop into larger issues. Under Section 138 of the Companies Act, 2013, specified classes of companies are required to appoint an internal auditor. The applicability depends on prescribed criteria relating to the company’s nature and financial parameters. Internal audits may be conducted by a Chartered Accountant, Cost Accountant or another professional as permitted under the applicable rules. Read More
Cost auditors specialise in examining cost records, cost allocation methods, production costs and costing systems. They are particularly relevant to specified manufacturing and regulated sectors.
A cost audit can help businesses:
• Analyse production and operating costs
• Review costing methods
• Identify inefficiencies and wastage
• Improve cost control
• Support accurate pricing decisions
• Protect profit margins
Under Section 148 of the Companies Act, 2013 and the Companies (Cost Records and Audit) Rules, 2014, cost audit requirements apply to specified classes of companies subject to applicable sector and turnover criteria. For example, the rules prescribe different thresholds for regulated and non-regulated sectors.
Cost audits are conducted by practising Cost and Management Accountants (CMAs) in accordance with the applicable requirements.
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• External or statutory auditors are independent professionals appointed to examine a company’s financial statements.
• Their primary responsibility is to express an opinion on whether the financial statements give a true and fair view of the company’s financial position and performance.
• Under Section 139 of the Companies Act, 2013, companies are required to appoint statutory auditors in accordance with the applicable provisions.
• Statutory audits provide stakeholders such as shareholders, lenders and regulators with greater confidence in the reliability of financial information.
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• Tax auditors examine whether a taxpayer’s income, expenses, deductions and other relevant financial information have been appropriately reported for tax purposes.
• A tax audit can help businesses:
• Verify financial information
• Identify reporting discrepancies
• Check applicable deductions and expenses
• Determine tax liability accurately
• Meet applicable tax reporting requirements
• Under the current Indian tax framework, tax-audit requirements and thresholds depend on the nature of the taxpayer and applicable provisions. For example, the general business threshold is ₹1 crore, with a higher ₹10 crore threshold where the prescribed cash-transaction conditions are satisfied; the professional threshold is ₹50 lakh.
• Tax audits are conducted by practising Chartered Accountants. Applicable audit reports and filing requirements depend on the relevant tax year and law.
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• Secretarial auditors examine whether a company is complying with applicable corporate laws, governance requirements, regulatory provisions and secretarial standards.
• Their review may cover areas such as:
• Companies Act requirements
• SEBI regulations, where applicable
• FEMA requirements
• Secretarial Standards
• Corporate governance practices
• Applicable regulatory filings
• Secretarial audit requirements are prescribed under Section 204 of the Companies Act, 2013 for specified classes of companies.
• The audit is conducted by a practising Company Secretary (CS), and the report is issued in the prescribed format.
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• Forensic auditors investigate suspected fraud, financial misconduct, misappropriation or irregularities.
• Unlike a routine financial audit, a forensic audit focuses on understanding what happened, identifying the parties or transactions involved, tracing financial movements and collecting evidence that may be useful in legal or regulatory proceedings.
• Forensic audits may be initiated because of:
• Suspected fraud or embezzlement
• Misappropriation of funds
• Whistleblower complaints
• Unexplained financial discrepancies
• Regulatory investigations
• Mergers and acquisitions due diligence
• Insolvency-related investigations
• Depending on the circumstances, investigations may involve authorities or institutions such as SFIO, SEBI, the Enforcement Directorate or lenders.
• Forensic professionals may be practising CAs or other qualified professionals with specialised forensic and fraud-investigation expertise.
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• Government auditors examine the use and management of public funds across government departments, public-sector organisations and other entities subject to government audit.
• In India, the Comptroller and Auditor General of India (CAG) performs constitutional audit functions under Articles 148–151 of the Constitution.
• Government audits can cover:
• Central and state government departments
• Government companies
• Public-sector organisations
• Government-funded or substantially financed bodies
• Utilisation of public funds and grants
• These audits help promote financial accountability, transparency and compliance in the use of public resources.
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• Compliance auditors assess whether an organisation is following applicable laws, regulations, internal policies and industry standards.
• They are particularly important in highly regulated industries such as:
• Banking
• Insurance
• Healthcare
• Financial services
• Fintech
• Other regulated sectors
• A compliance audit may examine:
• Regulatory filings and disclosures
• Data protection and privacy requirements
• Internal compliance policies
• Environmental, health and safety requirements
• Industry-specific licences and regulations
The frequency and scope of compliance audits depend on the applicable regulations, regulator requirements and the organisation’s internal risk framework.
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IT auditors evaluate an organisation’s technology infrastructure, information security, systems, access controls and data integrity.
They may review systems that process financial and operational information, including ERP platforms such as Tally, SAP and Oracle.
An IT audit can help identify:
• Cybersecurity vulnerabilities
• Weak access controls
• Data integrity issues
• System and application risks
• Backup and recovery gaps
• Inadequate IT controls
• Risks associated with ERP implementations or upgrades
IT audits are particularly relevant for:
• Banks and financial institutions
• NBFCs and insurance companies
• Listed companies
• Businesses with significant digital operations
• Organisations handling sensitive financial or customer data
• Companies undergoing ERP migration or system upgrades
• Businesses responding to cybersecurity incidents
The requirement and frequency of IT audits depend on the applicable regulatory framework, industry requirements and the organisation’s risk profile.
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Yes. Many medium- and large-sized businesses engage multiple auditors for different areas, such as internal, statutory and tax audits, to ensure comprehensive financial, operational and regulatory coverage.
Forensic audits are generally triggered by specific concerns rather than performed routinely. They are typically initiated when there are suspected instances of fraud, significant financial discrepancies, or credible whistleblower allegations.
Not necessarily. The requirement depends on factors such as turnover, legal structure, applicable laws, and regulatory requirements. Even when an audit is not mandatory, a voluntary audit can help improve financial transparency, credibility, and stakeholder confidence.
Statutory audits are generally conducted annually, while internal audits may be performed quarterly, periodically, or on an ongoing basis, depending on the size, complexity, risk profile, and operational needs of the business.
Yes. Investors and lenders prefer businesses with audited financials, as it increases trust and reduces perceived risk.
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