What is ADT-1?
Form ADT-1 is the statutory notice mandated under Section 139(1) of the Companies Act, 2013 read with Rule 4(2) of the Companies (Audit and Auditors) Rules, 2014, filed with the Ministry of Corporate Affairs (MCA) to officially intimate the Registrar of Companies (ROC) regarding the appointment of a statutory auditor.
Following Notification G.S.R. 359(E) (effective 14 July 2025), filing Form ADT-1 is explicitly mandatory for First Auditor appointments under Section 139(6) as well as subsequent 5-year AGM appointments. Submitting Form ADT-1 on the MCA V3 portal registers the auditor’s PAN, ICAI Firm Registration Number (FRN), membership number, term of appointment, and registered office into the public record under Straight Through Process (STP) auto-approval.
Who Must File ADT-1?
Every company incorporated under the Companies Act, 2013 or previous company laws must file Form ADT-1 upon appointing or re-appointing a statutory auditor. This includes:
- Private Limited Companies (Standard & Small Companies)
- Public Limited Companies (Unlisted and Listed)
- One Person Companies (OPC)
- Section 8 Companies (Non-profit organizations)
- Producer Companies
Form ADT-1 is statutorily mandated for:
- First Auditor Appointment: Appointed by the Board within 30 days of incorporation under Section 139(6). Mandatory Form ADT-1 filing within 15 days of Board meeting under amended Rule 4(2) [Notification G.S.R. 359(E)].
- Subsequent Auditor Appointment at AGM: Appointed for a term of up to 5 consecutive years under Section 139(1).
- Casual Vacancy Appointment: Filling a vacancy caused by death, disqualification, or resignation under Section 139(8).
ADT-1 Due Date & Timeline
Unlike standard ROC returns allowing a 30-day window, Form ADT-1 enforces a tight statutory timeline of strictly within 15 days from the date of the meeting at which the auditor was appointed:
- Standard AGM Scenario: If the Annual General Meeting is held on 30th September, the 15-day statutory window expires on 15th October.
- First Auditor Board Meeting: If the Board appoints the first auditor on 10th August, Form ADT-1 must be filed on or before 25th August.
- Casual Vacancy Scenario: If the appointment resolution is passed on 10th November, Form ADT-1 must be filed on or before 25th November.
- Filing Day Calculation: The day of the meeting is excluded (Day 0), and counting starts the following day. Filing on Day 16 triggers an immediate delay classification under MCA rules. Backdating is strictly prevented by MCA V3.
Consequences of Late Filing ADT-1
Delay in filing Form ADT-1 triggers two separate levels of statutory exposure:
1. Table B Additional Filing Fee Multipliers (Rule 12 Annexure)
Unlike annual financial returns (AOC-4 and MGT-7) which attract an uncapped ₹100 per day late fee, Form ADT-1 is an event-based form governed by Table B. The additional fee escalates based on the duration of delay as a direct multiplier of the normal base fee:
- Delay up to 15 days: 1 time the normal filing fee (1x)
- Delay 16 to 30 days: 2 times the normal filing fee (2x)
- Delay 31 to 60 days: 4 times the normal filing fee (4x)
- Delay 61 to 90 days: 6 times the normal filing fee (6x)
- Delay 91 to 180 days: 10 times the normal filing fee (10x)
- Delay beyond 180 days: 12 times the normal filing fee (12x)
2. Section 403 Condonation Requirement (> 270 Days Delay)
Under the second proviso to Section 403(1), if Form ADT-1 is delayed beyond 270 days from the statutory due date, the company cannot directly file the form through self-service checkout on MCA V3. The company must file an application in Form CG-1 with the Regional Director for Condonation of Delay before the ROC accepts the belated ADT-1.
3. Statutory Adjudication Penalties (Section 147)
Failure to appoint an auditor or contravention of Section 139 renders the company liable to a fine of ₹25,000 up to ₹5,00,000, and every officer in default liable to a fine of ₹10,000 up to ₹1,00,000. Furthermore, failure to file ADT-1 prevents filing AOC-4 and MGT-7 as the portal will fail auditor verification.