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5 October 2026 3 min read Advest Editorial Team

Statutory Audit vs Internal Audit: What Every Business Owner Should Know

Magnifying glass and calculator resting on business documents

"Audit" is one word covering very different kinds of work. Business owners often meet the statutory audit first, as a legal requirement, and only later discover that an internal audit can be one of the most useful management tools they have.

Statutory audit

What it is: An independent examination of your financial statements, resulting in an auditor's opinion on whether they present a true and fair view.

Who needs it: Every company registered under the Companies Act, 2013, regardless of size. LLPs need one once turnover or contribution crosses prescribed limits, and other entities may need audits under the laws that govern them.

Who appoints the auditor: For companies, the shareholders, on terms set by law. The auditor must be independent of management.

Who it reports to: The members (shareholders), and through the filed financial statements, to banks, investors and regulators.

What it gives you: Credibility. Lenders, investors, tax authorities and business partners rely on audited financial statements.

Internal audit

What it is: A review of processes, controls and risks (purchasing, sales, inventory, payroll, IT access, compliance) to find weaknesses and recommend improvements.

Who needs it: It is mandatory for certain classes of companies above prescribed thresholds. For everyone else it is optional, and often worthwhile.

Who appoints the auditor: Management or the board. The internal auditor can be an employee or an external firm.

Who it reports to: Management, the board or the audit committee.

What it gives you: Insight. It shows where money leaks, where fraud could happen and where processes slow the business down.

Side by side

Statutory auditInternal audit
PurposeOpinion on financial statementsImprove controls and processes
Required byLawManagement (law for some companies)
FocusYear-end numbersOngoing operations and risks
FrequencyAnnualQuarterly, half-yearly or continuous
OutputAudit report filed with statementsFindings and action plan for management

And the tax audit?

A tax audit is a separate requirement under income-tax law for businesses and professionals whose turnover or receipts exceed specified limits, or in certain other situations. It focuses on tax-related particulars and is reported to the tax department in a prescribed format.

Getting more from your audits

  • Keep books audit-ready all year. Monthly reconciliations make year-end faster and cheaper.
  • Share the internal audit findings with the statutory auditor: strong controls can make the statutory audit smoother.
  • Treat findings as an action list, with owners and deadlines, not a report to file away.

How Advest can help

We provide statutory, internal and tax audits, along with bookkeeping and controls design so your business is always ready. Explore Audit & Assurance.

This article is general information, not professional advice. Audit requirements depend on your entity type and size; please consult us.

Need advice on this topic?

Talk to the Advest team about your specific situation.

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