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ADT-1 Filing Online in India for Companies

ADT-1 filing online in India is a mandatory compliance requirement under the Companies Act 2013. Every company registered in India must file Form ADT-1 to intimate the Registrar of Companies (ROC) about the appointment of its statutory auditor. Whether it is a first-time appointment or a reappointment after an Annual General Meeting (AGM), timely ADT-1 filing online ensures your company stays compliant with MCA regulations and avoids unnecessary penalties.

What is ADT-1 Form Filing in India?

Form ADT-1 is an official intimation submitted by a company to the Registrar of Companies (ROC) regarding the appointment or reappointment of a statutory auditor. It is governed under Section 139 of the Companies Act 2013 and is a critical part of auditor appointment MCA compliance. Filing this form ensures transparency in corporate governance and keeps the MCA records updated with the latest auditor details.

Form ADT-1 serves as a formal notification to the ROC that a company has appointed or reappointed an auditor. It must be filed within 15 days of the AGM or Board Meeting where the auditor was appointed.

  • Governed under Companies Act 2013, Section 139
  • Filed on MCA21 portal online
  • Applicable to all registered companies in India
  • Required for both first-time and subsequent auditor appointments

Legal Framework under Companies Act 2013

The legal basis for ADT-1 filing is rooted in the Companies (Audit and Auditors) Rules 2014. Rule 4 specifically mandates that every company must file Form ADT-1 with the ROC within the prescribed time limit. Non-compliance attracts significant penalties under the Act.

What is the ADT-1 Due Date for Companies in India?

Understanding the ADT-1 due date is essential for every company to avoid late fees and penalties. The ADT-1 time limit varies depending on the type of auditor appointment — whether it is a first appointment by the Board of Directors or a reappointment at the AGM. Missing the deadline can result in significant financial penalties and compliance issues.

Due Date for New Companies

For newly incorporated companies, the Board of Directors appoints the first auditor within 30 days of incorporation. The ADT-1 Form must be filed within 15 days of this Board Meeting.

  • Board appointment: Within 30 days of incorporation
  • ADT-1 filing deadline: Within 15 days of Board Meeting
  • Casual vacancy appointment: Within 15 days of Board Meeting

Due Date After AGM

For companies reappointing or appointing a new auditor at the AGM, the ADT-1 due date is within 15 days from the conclusion of the AGM. Companies must ensure timely submission to avoid ADT-1 late fees.

EventADT-1 Filing Deadline
First Auditor Appointment (Board)Within 15 days of Board Meeting
Auditor Appointment/Reappointment at AGMWithin 15 days of AGM
Casual Vacancy FillingWithin 15 days of Board Meeting

ADT-1 Time Limit for Filing

The ADT-1 time limit is strictly 15 days from the date of the meeting where the auditor was appointed. Companies that miss this window must file with additional ADT-1 late fees as prescribed by the MCA.

Who Needs to File Form ADT-1 in India?

Understanding the ADT-1 applicability is critical for corporate compliance. Not all entities are required to file this form, but every registered company under the Companies Act 2013 must comply. Knowing who is liable helps avoid penalties and keeps the company in good standing with the ROC.

Applicability for Private Limited Companies

All private limited companies registered under the Companies Act 2013 must file Form ADT-1 every time they appoint or reappoint a statutory auditor. This includes companies appointing their first auditor after incorporation.

Applicability for Public Limited Companies

Public limited companies are also mandatorily required to file ADT-1. Given the higher level of public interest involved, compliance with ROC ADT-1 filing is strictly monitored by regulatory authorities.

Entities Not Required to File ADT-1

  • One Person Companies (OPCs) — exempted from ADT-1 filing
  • Small companies — exempted under certain conditions
  • LLPs — not governed under Companies Act 2013
  • Partnership firms — not applicable

What Are the Features of ADT-1 Filing in India?

The ADT-1 filing online process comes with several important features that make it a structured and transparent compliance mechanism under the MCA framework. Understanding these features helps companies prepare and submit the form efficiently without errors or delays.

Key Features of ADT-1 Filing

  • Filed entirely online on the MCA21 portal
  • Digital Signature Certificate (DSC) of the director is mandatory
  • Applicable for appointment, reappointment, and casual vacancy
  • ADT-1 Form pdf available for download on the MCA portal
  • Acknowledgement generated instantly upon successful submission
  • SRN (Service Request Number) issued for tracking status

Auditor Appointment Benefits

Filing ADT-1 on time ensures that the company auditor appointment is officially recorded with the ROC. This protects the company from compliance risks and strengthens its corporate governance structure.

MCA Compliance Significance

Regular and timely MCA ADT-1 submission demonstrates a company's commitment to transparency and statutory compliance, which is essential for raising funds, obtaining loans, and maintaining investor confidence.

What is the ADT-1 Form PDF and How to Download It in India?

The ADT-1 Form pdf is the official document prescribed by the Ministry of Corporate Affairs (MCA) for intimating auditor appointments. Companies can download the ADT-1 Form pdf directly from the MCA portal and fill it with the required auditor and company details before submission.

Steps to Download ADT-1 Form PDF from MCA Portal

  1. Visit the official MCA portal at mca.gov.in
  2. Navigate to "MCA Services" and click on "e-Filing"
  3. Search for "Form ADT-1" under the list of company forms
  4. Download the latest version of the ADT-1 Form pdf
  5. Open the form using Adobe Acrobat Reader
  6. Fill in the company CIN, auditor details, and appointment date
  7. Attach required documents and affix DSC
  8. Upload and submit on the MCA21 portal

Steps to Fill ADT-1 Form

While filling the Form ADT-1, ensure you enter the correct Corporate Identification Number (CIN), auditor's membership number, date of appointment, and financial year details. Any mismatch may result in rejection of the filing.

What Documents Are Required for ADT-1 Filing in India?

Preparing the right set of documents is crucial for a smooth ADT-1 online filing process. Incomplete documentation is one of the most common reasons for rejection of ADT-1 submissions on the MCA portal. Refer to the complete documents required for ADT-1 filing checklist below.

List of Documents Required

  • Board Resolution for auditor appointment
  • Auditor's written consent to act as auditor
  • Certificate from auditor confirming eligibility under Companies Act
  • Company's Certificate of Incorporation
  • Digital Signature Certificate (DSC) of the authorized director
  • PAN and membership number of the auditor/audit firm

Auditor Consent Letter

The auditor's consent letter is a mandatory attachment to Form ADT-1. It confirms that the auditor has agreed to the appointment and meets all eligibility criteria under Section 141 of the Companies Act 2013.

Board Resolution

A certified copy of the Board Resolution or AGM Resolution authorizing the auditor appointment must be attached. This is a critical document for ROC ADT-1 filing and must be certified by a Company Secretary or Director.

How Does the ADT-1 Filing Process Work Online in India?

The ADT-1 filing online process is entirely digital and managed through the MCA21 portal. Companies can complete the entire process without visiting any government office. Follow this step-by-step approach for a hassle-free ADT-1 filing process.

Step-by-Step Online Process

  1. Login to MCA21 Portal: Use your registered credentials to log in
  2. Select Form ADT-1: Navigate to "e-Filing" and select Form ADT-1
  3. Enter Company Details: Fill in CIN, company name, and registered office address
  4. Fill Auditor Details: Enter auditor name, membership number, and firm registration number
  5. Enter Appointment Details: Mention date of appointment and type of appointment
  6. Attach Documents: Upload Board Resolution, consent letter, and eligibility certificate
  7. Affix DSC: Attach the Digital Signature Certificate of the authorized director
  8. Pay Filing Fees: Pay the applicable ADT-1 fees online
  9. Submit Form: Submit the form and note the SRN for tracking

MCA21 Portal Filing Tips

Ensure that the company's MCA account is active and the DSC is valid before initiating the ADT-1 form submission online. Always check the form version compatibility with the MCA portal before uploading.

What Are the ADT-1 Late Fees and Penalty in India?

Missing the ADT-1 due date results in additional ADT-1 late fees and potential penalties under the Companies Act 2013. It is important for companies to understand the penalty structure and use an ADT-1 penalty calculator to estimate their liability before filing.

ADT-1 Late Fees Structure

Delay PeriodLate Fees Applicable
Up to 30 days2x of normal filing fees
More than 30 days up to 60 days4x of normal filing fees
More than 60 days up to 90 days6x of normal filing fees
More than 90 days up to 180 days10x of normal filing fees
Beyond 180 days12x of normal filing fees

ADT-1 Penalty Calculator

Companies can use the ADT-1 penalty calculator available on the MCA portal to estimate the exact late fees payable based on the number of days delayed. This helps in planning the ADT-1 form revision and payment before submission.

Penalty for Non-Compliance

Beyond late fees, continued non-compliance with ADT-1 compliance India requirements can result in:

  • Penalty on the company: Up to Rs. 50,000
  • Penalty on every officer in default: Up to Rs. 50,000
  • Disqualification of directors in extreme cases

How Much Does ADT-1 Filing Cost in India?

The ADT-1 fees depend on the company's paid-up share capital. The government filing fees are relatively modest, but professional charges for expert assistance may vary based on the complexity of the filing. Below is a structured breakdown of the ADT-1 filing fees and professional charges India.

ADT-1 Government Fees Structure

Paid-Up Share CapitalGovernment Filing Fee
Less than Rs. 1,00,000Rs. 200
Rs. 1,00,000 to Rs. 4,99,999Rs. 300
Rs. 5,00,000 to Rs. 24,99,999Rs. 400
Rs. 25,00,000 to Rs. 99,99,999Rs. 500
Rs. 1,00,00,000 or moreRs. 600

Professional Charges

Professional assistance for ADT-1 filing online India typically ranges from Rs. 500 to Rs. 2,000 depending on the service provider. Expert assistance ensures error-free filing and timely submission, saving companies from unnecessary ADT-1 late fees.

How Does ADT-1 Filing Differ from ADT-3 in India?

Many companies confuse Form ADT-1 with Form ADT-3. While both are related to statutory auditors, they serve entirely different purposes under the Companies Act 2013. Understanding the difference helps companies file the correct form and avoid compliance errors.

ADT-1 vs ADT-3 Comparison

ParameterForm ADT-1Form ADT-3
PurposeIntimation of auditor appointmentIntimation of auditor resignation
Filed ByCompanyAuditor
Time Limit15 days from appointment30 days from resignation
Applicable EventAppointment / ReappointmentResignation of auditor
PortalMCA21MCA21

Why Choose IndiaFilings for ADT-1 Filing in India?

IndiaFilings is India's leading business compliance platform, trusted by thousands of companies for seamless ADT-1 compliance India services. Our expert team handles every aspect of the filing process — from document preparation to final submission — ensuring zero errors and timely delivery.

Our professionals are well-versed with MCA regulations and stay updated with the latest changes in auditor appointment MCA requirements. We provide end-to-end support, making the entire ADT-1 online filing process smooth and stress-free for company directors and compliance officers.

With transparent pricing, dedicated support, and a proven track record, IndiaFilings ensures your company auditor filing is completed accurately and on time — every time. Trust us to manage your MCA compliance while you focus on growing your business.

Ready to file your ADT-1 form without hassle? Get started with expert assistance today. File ADT-1 Online with IndiaFilings and ensure your company stays fully compliant with MCA regulations.

Frequently asked questions

Common questions about ADT.

Form ADT-1 is a statutory return filed with the Registrar of Companies (ROC) to report the appointment or reappointment of an auditor as per Section 139 of the Companies Act, 2013.
The company is responsible for filing Form ADT-1, not the auditor.
Yes, under the Companies (Audit and Auditors) Amendment Rules, 2025, filing ADT-1 is now mandatory for first auditor appointments, including those made by the Board of Directors.
It must be filed within 15 days of the auditor's appointment, whether it occurs at the Board Meeting or AGM.
Late filing attracts penalties, with fees increasing based on the number of days delayed.
Penalty ranges from 2x to 12x the normal filing fee, depending on the delay period.

Key documents include:

  • Copy of Board/AGM resolution
  • Auditor's consent letter
  • Certificate under Section 141
  • Intimation sent to auditor

You need to provide the auditor’s:

  • Name and address
  • PAN and membership number
  • Email and contact info
  • Period of appointment
  • Firm registration number (if applicable)
Yes, it is mandatory for all types of companies—private, public, listed, unlisted, and OPCs.
Yes, companies must file ADT-1 even when an auditor is appointed to fill a casual vacancy.