Auditor Appointment Services
Statutory Auditor Appointment Under the Companies Act, 2013

Every company registered under the Companies Act, 2013 is required by law to appoint a statutory auditor — a Practising Chartered Accountant or a firm of Chartered Accountants — to audit its annual financial statements. The auditor appointment is not a discretionary governance decision but a statutory mandate under Section 139 of the Companies Act, with specific timelines, eligibility conditions, mandatory rotation requirements for larger companies, and MCA filing obligations. The first auditor must be appointed by the Board of Directors within 30 days of the company’s incorporation; all subsequent auditors are appointed at the Annual General Meeting; and every appointment — whether first appointment, annual re-appointment, or appointment after mandatory rotation — must be notified to the MCA through Form ADT-1 within 15 days. A company that operates without a validly appointed auditor is in material breach of the Companies Act, and its directors are personally exposed to penalty.

N D Savla & Associates, Chartered Accountants based in Mumbai, provides complete auditor appointment compliance services for companies of all sizes: first auditor appointment within 30 days of incorporation (with Board Resolution, auditor consent, eligibility certificate, and Form ADT-1 filing); annual re-appointment at AGM; mandatory rotation advisory for companies that have crossed the prescribed thresholds; casual vacancy filling when an auditor resigns or vacates mid-term; and Form ADT-1 filing on the MCA21 portal within the 15-day window for every appointment event. We also advise companies and their Board of Directors on mandatory rotation schedules — identifying the year in which the current auditor’s term expires and ensuring a replacement auditor is identified and appointed in time, without a compliance gap.

The auditor appointment framework intersects with the broader annual compliance cycle. After the auditor is appointed and completes the audit, the audited financial statements are presented at the AGM, and the Annual Financial Statements (Form AOC-4) are filed with the MCA within 30 days of the AGM. For LLPs, the audit threshold — turnover above Rs. 40 lakh or contribution above Rs. 25 lakh — determines whether the Statement of Account and Solvency (Form 8) requires CA certification. Every auditor appointment (or re-appointment) is filed through the MCA21 portal at mca.gov.in.

Section 139 of the Companies Act, 2013 mandates auditor appointment for every company incorporated under the Act, without regard to turnover, paid-up capital, or size. This includes:

• Private Limited Companies: All private limited companies, including newly incorporated ones, must have a statutory auditor from within 30 days of incorporation
• Public Limited Companies: All public companies, whether listed or unlisted, must have a statutory auditor
• One Person Companies (OPCs): Even a one-person company with a single director and shareholder must appoint an auditor
• Small Companies and Dormant Companies: Even companies classified as “Small Companies” or designated as “Dormant” under the Companies Act must have an auditor. Small company status reduces certain filing requirements but does not remove the auditor appointment obligation
• Section 8 Companies (NGOs registered as companies): Section 8 companies must appoint auditors, though they have certain exemptions in relation to mandatory rotation
• Government Companies: Government companies have additional provisions under Section 139(5) to (7), where the Comptroller and Auditor General of India (CAG) is involved in the auditor appointment process

Limited Liability Partnerships follow a different audit framework under the LLP Act, 2008. As discussed on our LLP Statement of Account and Solvency (Form 8) page, an LLP is required to have its accounts audited only if its turnover exceeds Rs. 40 lakh in the financial year OR its total partner contribution exceeds Rs. 25 lakh. Below these thresholds, the LLP’s financial statements can be self-certified by the Designated Partners without an independent audit. When an LLP crosses the audit threshold, a Practising CA must certify Form 8 Part A. The statutory audit appointment framework under Section 139 of the Companies Act does not apply to LLPs — the LLP audit, when required, is arranged directly under the LLP Act provisions.

The first auditor of a company (other than a government company) must be appointed by the Board of Directors within 30 days from the date of registration of the company with the MCA. This Board-level appointment is a specific power given to the Board for the first auditor only — all subsequent auditors are appointed by shareholders at the AGM. The Board of Directors should pass a Board Resolution at their first Board Meeting appointing the first auditor and specifying the audit fee. The first auditor holds office until the conclusion of the first Annual General Meeting.

If the Board fails to appoint the first auditor within 30 days:

• The company must inform the members (shareholders) of the failure
• The members must appoint the first auditor within 90 days of incorporation at an Extraordinary General Meeting (EGM)
• If neither the Board nor the members act within these timelines, the company and its directors are in default and exposed to penalties under Section 147

After the first auditor, all subsequent auditors are appointed by the members (shareholders) at each Annual General Meeting. The appointment at AGM is made through an ordinary resolution. The person proposed to be appointed as auditor must have given written consent to the appointment and must have confirmed that they are eligible and not disqualified under Section 141. The company then files Form ADT-1 within 15 days of the AGM.

For companies not subject to mandatory rotation (see below), the same auditor can be re-appointed at each AGM indefinitely. For companies subject to mandatory rotation, the appointment at AGM is for a fixed term (typically 5 years for an individual CA or 5 years for a firm) and the same auditor cannot be re-appointed when that term expires.

Section 139(2) of the Companies Act, 2013 introduced mandatory rotation of auditors for specified categories of companies. The policy rationale is to prevent the over-familiarity that can develop between a long-serving auditor and company management, thereby protecting auditor independence. Mandatory rotation is one of the most practically complex aspects of auditor appointment compliance.

Mandatory rotation applies to:

• All listed companies (shares listed on any recognised stock exchange in India)
• All unlisted public companies with paid-up share capital of Rs. 10 crore or more
• All private companies with paid-up share capital of Rs. 50 crore or more
• All companies (public or private) which have public borrowings from scheduled banks or public financial institutions (PFIs) of Rs. 50 crore or more
• Companies not falling within any of the above categories are NOT subject to mandatory rotation; they may re-appoint the same auditor/firm indefinitely

For companies subject to mandatory rotation:

• Individual Chartered Accountant: Can be appointed for a maximum of one term of 5 consecutive years. After completing 5 years, there is a mandatory 5-year cooling-off period before the same CA can be re-appointed for the same company.
• Audit firm: A firm can be appointed for a maximum of two consecutive terms of 5 years each — a total of 10 consecutive years. After completing 10 years, the firm (or any other firm in which any of the retired partners of the first firm are partners) cannot be re-appointed for 5 years.
• Transition: Section 139(2) provided a 3-year transition period (ending on 31 March 2017) for companies to comply with mandatory rotation. Companies that had the same auditor for more than the prescribed period were given this transition window to complete the rotation.

The cooling-off period after a mandatory rotation is 5 years, during which neither the individual CA nor any of the partners of the outgoing firm can act as auditor of the same company. The cooling-off period is designed to ensure that the outgoing auditor is genuinely replaced with an independent new auditor and that the relationship between the company’s management and audit team is periodically refreshed. Companies must plan their auditor rotation well in advance: identifying a replacement, allowing the incoming auditor to review prior-year audit files during the transition, and briefing the new auditor on the company’s accounting policies and business.

Under Section 141(1) and (2) of the Companies Act, 2013, only the following are eligible to be appointed as statutory auditor of a company:

• A Chartered Accountant in practice (i.e., holding a valid Certificate of Practice from ICAI and actively practising as a CA)
• A firm of Chartered Accountants where a majority of the firm’s partners practising in India are qualified Chartered Accountants
• A Limited Liability Partnership (LLP) of Chartered Accountants (where the LLP is an audit firm registered as an LLP under the LLP Act)
• Foreign audit firms are not eligible to be statutory auditors of Indian companies (they may participate as network firms on multi-national audit engagements, but the statutory audit appointment must be held by an ICAI-registered CA or firm)

Section 141(3) Disqualifications — Who Cannot Be Appointed

Section 141(3) lists the grounds on which a person or firm is disqualified from being appointed as auditor. These disqualifications are critically important: appointing a disqualified auditor means the audit appointment is void, and the company has effectively operated without an auditor. The key disqualifications:

• Officer or employee of the company: A person who is an officer (director, secretary, etc.) or employee of the company cannot be its auditor
• Partner or employee of an officer: A partner or employee of an officer or employee of the company is disqualified
• Former director/officer: A person who has been a director or officer of the company at any time during the preceding 3 years
• Securities holder: A person who holds any securities of, or interest in, the company or its subsidiary, holding company, or associate company (subject to the prescribed threshold under ICAI guidelines)
• Indebted to the company: A person who is indebted to the company, its subsidiary, its holding company, or its associate company for an amount exceeding Rs. 5 lakh
• Provided guarantee: A person who has given a guarantee or provided security in connection with the indebtedness of any third person to the company, its subsidiary, its holding company, or associate company, for an amount exceeding Rs. 1 lakh
• Relative in company: A person whose relative is a director or is in the employment of the company as a director or Key Managerial Personnel (KMP)
• Full-time employment elsewhere: A person in full-time employment elsewhere (the CA must be practising, not employed full-time with another entity)
• Audit ceiling exceeded: A person who has audited more than the prescribed number of companies (currently 20 companies per CA, including maximum 10 public companies)

A single Chartered Accountant cannot be the statutory auditor of more than 20 companies at one time. For firms, the ceiling is 20 companies per partner. Independently of this statutory ceiling, ICAI has its own ethical guidelines that may impose lower limits in certain circumstances. An auditor who has already reached the ceiling cannot accept a new appointment and is disqualified. Companies that want to appoint a specific CA must verify that the CA has not already reached the 20-company ceiling before the appointment is confirmed.

• First auditor appointment: Within 15 days of the Board Resolution appointing the first auditor
• Subsequent auditor appointment at AGM: Within 15 days of the AGM date
• Re-appointment of existing auditor at AGM: Within 15 days of the AGM date
• Appointment to fill a casual vacancy (mid-term): Within 15 days of the Board Resolution filling the casual vacancy
• Appointment after mandatory rotation: Within 15 days of the AGM at which the new auditor is appointed after the outgoing auditor’s term expires

• Company’s CIN and name
• Category of appointment: First auditor / Appointment at AGM / Re-appointment / Casual vacancy
• Name and Membership Number of the auditor (individual CA or firm)
• Firm Registration Number (FRN) of the audit firm (if a firm is appointed)
• Date of appointment (date of Board Resolution for first auditor; date of AGM for AGM appointments)
• Period of appointment (from date to the conclusion of the next AGM, or from date to a specified year for mandatory rotation companies)
• Written consent of the auditor and certificate of eligibility (as attachments)
• DSC of a director or authorised signatory of the company

Form ADT-1 must be filed within 15 days of the appointment event. Late filing attracts additional fees in the same multiplier structure as other company e-forms under the Companies (Registration Offices and Fees) Rules:

• Up to 30 days late (total 45 days from appointment): 2× normal MCA fee
• 30 to 60 days late (total 45–75 days): 4× normal fee
• 60 to 90 days late (total 75–105 days): 6× normal fee
• 90 to 180 days late: 10× normal fee
• Beyond 180 days late: 12× normal fee

The base government fee for Form ADT-1 is relatively modest (it varies with the company’s authorised capital). However, the Section 147 penalty for non-appointment or non-filing is significantly larger, and it is the personal responsibility of the directors.

Before accepting any appointment as statutory auditor, the CA or firm must provide two documents to the company:

The written consent confirms that the CA/firm is willing to accept the appointment. The consent letter should state:

• Name and Membership Number (or FRN for firms) of the auditor
• Name of the company for which consent is given
• Date from which the appointment is to be effective
• Acceptance of the appointment as statutory auditor
• Confirmation that all conditions of eligibility under Section 141 are met

The certificate of eligibility is a more detailed document in which the auditor certifies:

• They are not disqualified under Section 141(3)
• The appointment will be within the prescribed limit of Section 141(3)(g) (ceiling of 20 companies)
• They satisfy the criteria for independence as per Section 141 and the applicable ICAI ethical standards
• No relative of theirs holds a position as director or KMP in the company

Section 144 of the Companies Act, 2013 prohibits the statutory auditor of a company from providing certain non-audit services to the same company. The prohibition extends to the auditor providing these services to the company, its holding company, or its subsidiary company. The rationale is that an auditor who also provides management services to a company cannot maintain genuine independence when auditing the same company. The prohibited services are:

• Accounting and bookkeeping services: Maintaining the books of account that the same CA is then auditing is a direct conflict of interest
• Internal audit: A CA cannot perform both the internal audit and the statutory audit of the same company
• Design and implementation of financial information systems: Designing the systems whose outputs the auditor then audits
• Actuarial services
• Investment advisory services
• Investment banking services
• Rendering of outsourced financial services
• Management services and other prescribed services

Before appointing a CA or firm as statutory auditor, the company must verify that the proposed auditor is not already providing any of these prohibited non-audit services. An audit appointment where the auditor is also providing prohibited services is a violation of Section 144. N D Savla & Associates, as a CA firm, clarifies the scope of services to every audit client at the time of appointment, ensuring there is no overlap between the statutory audit engagement and other services that would compromise independence.

Removing a statutory auditor before the expiry of their term is a complex and deliberately burdensome process under the Companies Act, designed to protect auditor independence from management pressure. Removal requires: (a) prior approval from the Central Government, applied for in Form ADT-2 with a statement of reasons; (b) after receiving Central Government approval, a Special Resolution at a General Meeting of shareholders. The involvement of the Central Government as a check on auditor removal — not seen for company director removal which only needs a shareholder Ordinary Resolution — reflects the legislature’s deliberate protection of the auditor’s tenure from management interference.

An auditor may resign from their appointment at any time. Within 30 days of the resignation, the auditor must file Form ADT-3 with the MCA21 portal at mca.gov.in. Form ADT-3 requires the auditor to provide a statement of the reasons for resignation and to indicate whether the resignation is in the interest of the company. The requirement for the auditor to disclose reasons for resignation is specifically designed to prevent auditors from resigning to avoid reporting frauds or irregularities they have discovered. The company must also file its own Form ADT-1 to appoint a replacement auditor to fill the casual vacancy.

Where an auditor vacates office mid-term (due to resignation, death, disqualification, or any other reason), the vacancy is a “casual vacancy”. For casual vacancies caused by resignation: the casual vacancy must be filled by the Board of Directors at a Board Meeting, and the appointment must be ratified by the members at the next AGM. For casual vacancies caused by other reasons (death, disqualification): the Board can fill the vacancy, and again the appointment must be ratified at the next AGM. Form ADT-1 must be filed within 15 days of the Board Resolution filling the casual vacancy.

An LLP’s audit requirement and auditor appointment mechanism is governed by the LLP Act, 2008 and LLP Rules, 2009 — not the Companies Act, 2013. The Section 139 appointment framework, Form ADT-1, mandatory rotation, and the Section 141 disqualifications do not directly apply to LLPs. Instead:

• Auditor engagement: When the LLP crosses the audit threshold, it engages a Practising CA (under a separate engagement letter) to conduct the audit of the LLP’s accounts. There is no Form ADT-1 or MCA filing specifically for the LLP auditor appointment.
• Mandatory rotation: There is no mandatory auditor rotation framework for LLPs under the LLP Act. LLPs may engage the same CA or firm for multiple years without any rotation requirement.
• No audit ceiling: The 20-company ceiling under Section 141(3)(g) applies to company statutory audits under the Companies Act. LLP audit engagements are separate and may or may not count toward this ceiling depending on ICAI’s regulatory framework at the time.

The statutory audit requirement for Indian companies has roots in the Companies Act, 1913 and was comprehensively codified in the Companies Act, 1956. Under the 1956 Act, every company was required to appoint an auditor, and the first auditor was appointed by the directors within 1 month of incorporation. The 1956 Act did not have mandatory rotation provisions; auditors could serve indefinitely, and many companies had the same audit firm for decades.

The Companies Act, 2013 introduced several landmark changes to the auditor appointment framework: Section 141 codified the eligibility and disqualifications for the first time in one place; Section 144 introduced the prohibited services list (a concept borrowed from Sarbanes-Oxley in the US); and most significantly, Section 139(2) introduced mandatory auditor rotation for the first time in Indian corporate law. These changes were prompted by high-profile audit failures (Satyam Computer Services being the most prominent) that highlighted the risks of long-tenured auditor relationships and non-audit services compromising independence.

The mandatory rotation provisions came into full effect from 1 April 2017 (after a 3-year transition period from the Act coming into force in 2014). The first major wave of mandatory rotations occurred in 2017, requiring many listed companies to change their audit firms — including several Big Four relationships that had lasted decades. The Companies (Amendment) Act, 2017 and subsequent MCA circulars have clarified various aspects of the rotation framework.

The Companies (Auditor’s Report) Order (CARO), issued by the Ministry of Corporate Affairs, prescribes the specific matters that the statutory auditor must report on in their audit report. CARO has been revised several times, with CARO 2020 (effective for audit reports from FY 2021-22 onwards) being the most recent version. CARO requirements are in addition to the statutory audit under Section 143 and apply to most companies above the small company threshold.

Yes. The statutory audit requirement under Section 139 applies to every company registered under the Companies Act, 2013, including Small Companies, One Person Companies, and Dormant Companies. Small company status and OPC status reduce certain other compliance requirements (such as mandatory auditor rotation), but they do not remove the obligation to appoint a statutory auditor and file Form ADT-1. Even a small company with zero revenue must have a statutory auditor.

Mandatory auditor rotation requires companies in specified categories to change their statutory auditor (or audit firm) after the maximum permitted term expires. It applies to: all listed companies; unlisted public companies with paid-up capital of Rs. 10 crore or more; private companies with paid-up capital of Rs. 50 crore or more; and companies with borrowings from banks/PFIs of Rs. 50 crore or more. For individual CAs, the maximum term is 5 consecutive years (followed by a 5-year cooling-off period). For firms, it is two consecutive terms of 5 years each — total 10 years — followed by a 5-year cooling-off.

Late filing of Form ADT-1 attracts additional MCA fees in a multiplier structure (2× to 12× the base fee, depending on delay). More seriously, Section 147 of the Companies Act provides that a company which contravenes the auditor appointment provisions shall be punishable with a fine of not less than Rs. 25,000 and not more than Rs. 5,00,000. Every director in default is also punishable with a fine of not less than Rs. 10,000 and not more than Rs. 1,00,000 or imprisonment up to 1 year, or both.

No. Section 144 specifically prohibits the statutory auditor from providing accounting and bookkeeping services to the same company. This is one of several prohibited non-audit services designed to protect auditor independence. An auditor cannot maintain the books of account and then audit those same books. Companies that need both accounting/bookkeeping support and statutory audit must engage two separate CA firms or individuals for these two functions. N D Savla & Associates makes the scope of services clear at the time of engagement to ensure no Section 144 violation.

If the statutory auditor resigns before completing their term, two compliance actions occur simultaneously: the auditor files Form ADT-3 (statement of resignation with reasons) on the MCA21 portal at mca.gov.in within 30 days. The company fills the casual vacancy by convening a Board Meeting, passing a Board Resolution to appoint a replacement auditor, obtaining the new auditor’s consent and eligibility certificate, and filing Form ADT-1 within 15 days of the Board Resolution. The replacement auditor appointed to fill the casual vacancy holds office until the next AGM, at which the shareholders formally appoint/re-appoint the auditor.