CORAA

Internal Audit Charter Template — Section 138 / IIA / SIA

A board-approved Internal Audit Charter establishing the purpose, authority, independence, scope and responsibilities of the internal-audit function. Aligned with IIA Standards and ICAI SIA framework.

Free · ICAI AASB (June 2023)
Updated 28 May 2026
Statutory basis
Section 138 Companies Act 2013
Standards
ICAI SIA, IIA Standards
Approved by
Audit Committee / Board
Reviewed
Annually
Your firm — letterhead
Appears at the top of the document as the audit firm letterhead.
Used as the letterhead block.
Engagement details
The client and period this document is for.
What’s inside

An excerpt from the template.

INTERNAL AUDIT CHARTER

Approved by: Audit Committee / Board of Directors of ___

1. Purpose

The Internal Audit Function provides independent, objective assurance and consulting services designed to add value and improve operations of ___. It helps the Entity accomplish its objectives by bringing a systematic, disciplined approach to evaluating and improving the effectiveness of governance, risk management and internal control processes.

↑ Excerpt only — the full template is what you download as Word
About this template

What you’re downloading, and when to use it.

This template follows the format published by the Institute of Chartered Accountants of India (ICAI) in the AASB Audit Working Paper Templates (June 2023), the authoritative reference for Indian statutory-audit documentation. Fill in your firm’s letterhead and the engagement details on the form above, click Download Word file, and you’ll get a fully formatted .docx ready to use.

Everything is generated in your browser and on a stateless API endpoint — no account, no email gate, nothing stored. Edit freely in Word, Google Docs or Pages before sending to your client.

Common questions

FAQs.

Which companies require internal audit under Section 138?
Per Rule 13 of the Companies (Accounts) Rules 2014, internal audit is mandatory for every listed company, every unlisted public company with paid-up share capital ≥ ₹50 crore OR turnover ≥ ₹200 crore OR outstanding loans/borrowings from banks/PFIs > ₹100 crore OR outstanding deposits ≥ ₹25 crore during the preceding financial year, and every private company with turnover ≥ ₹200 crore OR outstanding loans/borrowings > ₹100 crore.
Who can be appointed as internal auditor?
The internal auditor can be a Chartered Accountant (in practice or employed by the company), a Cost Accountant, or such other professional as decided by the Board. The internal auditor must not be the same person/firm as the statutory auditor — that would compromise independence.
How often should the Internal Audit Charter be reviewed?
IIA Standard 1000 requires the Charter to be reviewed periodically. Best practice is annual review by the Audit Committee, with a substantive refresh every 3-5 years to reflect changes in the business, regulatory landscape, and internal-audit standards (ICAI SIA, IIA Standards updates).
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