ADT-1 Filing for Auditor Appointment
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What is ADT-1 & Why is It Important?
Form ADT-1 is a mandatory filing with the Registrar of Companies (ROC) to notify the appointment or reappointment of an auditor under Section 139 of the Companies Act, 2013. Filing ADT-1 ensures legal compliance and maintains corporate transparency.

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Process to File ADT-1
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- Auditor’s Consent Letter – Confirmation from the appointed auditor.
- Board Resolution Copy – Documented approval of the auditor appointment.
- Appointment Letter – Official communication to the auditor.
- Company Details (CIN, PAN).
- Digital Signature Certificate (DSC) of a Director.
Tip: Keep scanned copies of all documents ready before filing.
- Visit www.mca.gov.in.
- Enter company credentials (User ID & Password).
- Go to “MCA Services” → “E-Forms” → “Form ADT-1“.
- Provide the required details, including:
- Company Name & CIN
- Auditor’s Name & Membership Number
- Date & Duration of Appointment
Latest 2024 Rule: Companies must confirm whether the auditor is newly appointed or reappointed.
- Upload Auditor’s Consent Letter, Board Resolution, and Appointment Letter.
- Ensure all documents are in PDF format (max size 10MB).
Tip: Double-check all details before submission to avoid rejection.
- Sign ADT-1 using the DSC of an authorized director.
- Pay the ROC filing fee (varies based on company capital).
Latest 2024 Update: ROC now processes ADT-1 applications within 2-5 working days.
Penalties for Late Filing of ADT-1
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Tip: File ADT-1 on time to avoid unnecessary fines and legal complications.
Frequently Asked Questions
What is Form ADT-1?
Form ADT-1 is used to notify the Registrar of Companies (RoC) about the appointment of an auditor by a company. It's filed to record the appointment details officially.
Who is required to file Form ADT-1?
Companies that have appointed an auditor to undertake their statutory audit are required to file Form ADT-1 as part of compliance with the Companies Act.
When should a company appoint its first auditor?
The first auditor should be appointed by the Board of Directors within 30 days from the date of registration of the company. If the Board fails to appoint, an EGM (Extraordinary General Meeting) must be called within 90 days to appoint the first auditor.
How long does the first auditor serve?
The first auditor appointed in a company holds office from the conclusion of the Board meeting in which they are appointed until the conclusion of the first Annual General Meeting (AGM).
What qualifications should the first auditor have?
The first auditor must be a qualified chartered accountant in practice, or a firm of chartered accountants can also be appointed as auditors, provided none of the partners is disqualified or barred from being appointed.
Is it mandatory to file ADT-1 for the appointment of the first auditor?
It is not mandatory to file Form ADT-1 for the appointment of the first auditor appointed by the Board. However, if the first auditor is appointed by shareholders in an EGM, then filing ADT-1 becomes necessary.
What details are required in Form ADT-1?
Form ADT-1 requires details such as the name and registration number of the auditor or auditor’s firm, the period for which the appointment is valid, details of the appointing authority, and the date of appointment.
What documents need to accompany Form ADT-1?
Typically, a certified true copy of the resolution passed in the board meeting or shareholder’s meeting appointing the auditor is attached along with Form ADT-1.
Can Form ADT-1 be filed online?
Yes, Form ADT-1 can be filed online through the MCA (Ministry of Corporate Affairs) portal. It needs to be digitally signed by a director and then submitted.
What are the penalties for not filing Form ADT-1 on time?
Failure to file Form ADT-1 within the prescribed time limit can lead to penalties and fines imposed on the company and each officer in default, as prescribed under the Companies Act.