Auditor Appointment in India: First Auditor, ADT-1 Form, Process and Due Dates
Appointing a statutory auditor is one of the first important compliance responsibilities after incorporating a company in India. The process applies not only when a company is newly incorporated, but also when an auditor is appointed or reappointed at an Annual General Meeting, when a casual vacancy arises, or when a new auditor needs to be appointed after the existing auditor’s tenure ends.
For new business owners, the terminology can be confusing. Terms such as auditor appointment, first auditor appointment, auditor appointment form, and ADT-1 filing are often used together, even though each refers to a different part of the compliance process.
This guide explains the auditor appointment process in India, including who appoints the first auditor, applicable timelines, Form ADT-1, documents, auditor eligibility, and common compliance mistakes.
What Is Auditor Appointment?
Auditor appointment is the legal process through which a company appoints a qualified statutory auditor to examine its financial statements and perform the duties prescribed under the Companies Act, 2013.
The statutory auditor plays an independent role in examining the company’s financial records and reporting on its financial statements.
Under the Companies Act, 2013, companies are required to appoint auditors according to the applicable provisions. The appointment process can differ depending on whether it is the company’s first auditor, a subsequent auditor appointed at an AGM, or an auditor appointed to fill a casual vacancy.
Section 139 of the Companies Act, 2013 contains the principal provisions relating to appointment of auditors.
First Auditor Appointment After Incorporation
The first auditor appointment is one of the earliest statutory compliance requirements for a newly incorporated company.
For a company other than a Government company, the Board of Directors is required to appoint the first auditor within 30 days from the date of registration of the company.
The first auditor generally holds office until the conclusion of the company’s first Annual General Meeting.
If the Board fails to appoint the first auditor within the prescribed period, the members are required to take the necessary action in accordance with the Companies Act.
This means that incorporation should be followed by a proper compliance calendar. Obtaining the Certificate of Incorporation does not mean that all post-incorporation obligations are complete.
Who Appoints the First Auditor?
For most newly incorporated companies, the Board of Directors appoints the first auditor within 30 days of incorporation.
There is a separate procedure for Government companies and certain companies owned or controlled by the government. Under Section 139, the first auditor of such a company is appointed by the Comptroller and Auditor-General of India within the prescribed period.
For an ordinary private limited company, however, the Board generally handles the first auditor appointment.
If the Board does not make the appointment within the applicable period, the members are required to appoint the auditor in accordance with the statutory procedure.
What Is Form ADT-1?
Form ADT-1 is the form used by a company to notify the Registrar of Companies about the appointment of its auditor.
It is commonly referred to as the auditor appointment form because it records important details relating to the auditor appointed by the company.
The form contains information such as:
- Company details
- Auditor or audit firm’s details
- Nature of appointment
- Auditor’s tenure
- Details relating to previous appointments, where applicable
- Other information required under the applicable MCA form
The official MCA form identifies ADT-1 as the notice to the Registrar by a company for the appointment of an auditor under Section 139 of the Companies Act and the applicable rules.
Is ADT-1 Required for the First Auditor?
This is an important point for companies incorporated recently.
The MCA’s company form system was updated in 2025, and ADT-1 is now required for reporting the appointment of the first auditor as well, according to the current compliance position reflected by MCA’s form rollout and current professional guidance.
For a newly incorporated company, it is sensible to consider both parts of the compliance process:
First auditor appointment → ADT-1 filing
Completing only the Board resolution without completing the applicable ROC filing can leave the company’s compliance record incomplete.
When Should ADT-1 Be Filed?
The company should file Form ADT-1 within 15 days from the date of appointment of the auditor.
This timeline is separate from the 30-day period applicable to the first auditor appointment.
For example, if a newly incorporated company appoints its first auditor through a Board resolution, the company should calculate the applicable ADT-1 filing deadline from the date of that appointment.
For a subsequent auditor appointed at the AGM, the 15-day period is calculated from the date of that appointment.
Keeping these two deadlines separate makes the compliance calendar easier to manage.
Auditor Appointment at the AGM
The first auditor generally remains in office until the conclusion of the first Annual General Meeting.
At the AGM, the members appoint the auditor for the subsequent term in accordance with Section 139 and the applicable rules.
A subsequent auditor may generally be appointed for a term of five years, subject to the provisions of the Companies Act.
The company must also consider the applicable auditor rotation provisions and other statutory requirements when making a subsequent appointment or reappointment.
The Companies Act provides specific rules for appointment and reappointment of auditors, including provisions concerning retirement and reappointment.
Auditor Appointment Process
Although the exact procedure can vary depending on the circumstances, a typical auditor appointment process involves the following steps.
1. Identify a suitable auditor
The company first identifies a Chartered Accountant or eligible audit firm that can act as its statutory auditor.
The proposed auditor should satisfy the eligibility requirements under Section 141.
2. Obtain consent from the auditor
Before completing the appointment process, the company should obtain the auditor’s written consent to act as auditor.
The company should also obtain the required eligibility confirmation from the proposed auditor.
3. Check eligibility and disqualifications
The company should verify that the proposed auditor is eligible and does not fall under any statutory disqualification.
Section 141 contains requirements relating to qualifications, eligibility and disqualifications of auditors. For example, an individual auditor must be a Chartered Accountant, while an eligible firm may be appointed in accordance with the Act.
4. Pass the required resolution
For the first auditor, the Board generally passes a resolution approving the appointment.
For subsequent appointments, the appropriate members’ resolution is passed at the AGM, subject to the applicable provisions.
5. Prepare Form ADT-1
Once the appointment has been completed, the company prepares the auditor appointment form with the required details and supporting information.
6. File ADT-1 with the ROC
The company submits ADT-1 to the Registrar of Companies within the applicable statutory period.
7. Preserve the filing records
The company should retain the resolution, auditor’s consent, eligibility documents, filed form and acknowledgement as part of its corporate records.
Documents Required for Auditor Appointment
The exact documents can vary depending on the type of appointment, but companies commonly need:
- Certificate of Incorporation
- Company PAN
- Memorandum of Association
- Articles of Association
- Board resolution or members’ resolution
- Auditor’s written consent
- Auditor’s eligibility certificate
- Auditor’s membership and registration details
- Details of previous auditor, where applicable
- Digital Signature Certificate of the authorised person
- Other information required for Form ADT-1
Before filing, the company should check that the information in the resolution, auditor’s consent and MCA form is consistent.
Auditor Eligibility Under Section 141
Choosing an auditor is not simply a matter of obtaining consent from any accounting professional.
Section 141 of the Companies Act contains specific eligibility and disqualification requirements.
An individual appointed as a company auditor must be a Chartered Accountant. An eligible firm may also be appointed, subject to the requirements of the Act.
The legislation also specifies circumstances that can disqualify a person from appointment. These include certain relationships with the company, employment relationships, prohibited business relationships, specified financial interests and other circumstances prescribed by law.
The company should therefore complete an eligibility check before passing the appointment resolution.
Auditor Appointment for a Casual Vacancy
An auditor may leave office before the normal end of the term, creating what is known as a casual vacancy.
For companies other than those whose accounts are subject to audit by an auditor appointed by the Comptroller and Auditor-General of India, the Board generally fills a casual vacancy within 30 days.
Where the vacancy results from the auditor’s resignation, the appointment must also be approved by the company at a general meeting within the prescribed period.
This is different from the first auditor appointment and should not be treated as the same compliance event.
What Happens If Auditor Appointment Is Delayed?
Failure to appoint an auditor within the prescribed period can create a compliance default.
The Companies Act contains penalties for failure to comply with the auditor appointment requirements. The company and officers in default may face financial consequences depending on the nature of the default.
Late or missed ADT-1 filing can also result in additional filing fees and create inconsistencies in the company’s ROC records.
A delayed appointment can become particularly inconvenient when the company later needs to complete annual filings, conduct due diligence, raise investment or provide corporate records to a bank or other stakeholder.
Conclusion
Auditor appointment is an important statutory requirement for companies in India, and the process begins as early as the company’s first month after incorporation.