ADT-1 Filing for Auditor Appointment — Section 139 Compliance for Indian Companies

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Every company registered in India has to appoint a statutory auditor, and then it has to tell the Registrar of Companies that it has done so. The second half is where boards slip. The appointment gets made, the minutes are signed, and Form ADT-1 sits unfiled until someone spots the gap months later during annual filing season.

That gap became a great deal more expensive on 14 July 2025. The Companies (Audit and Auditors) Amendment Rules, 2025, notified through G.S.R. 359(E) dated 30 May 2025, removed the long-standing exemption that let companies skip ADT-1 filing when the board appointed the first auditor. Every appointment now gets reported — first auditor, reappointment at the AGM, casual vacancy, all of it. Companies incorporated after that date which assumed the old position still held are carrying an open default, and the additional fee on a late Form ADT-1 compounds in fixed multiples rather than sitting as a flat penalty.

N D Savla & Associates handles ADT-1 filing for companies across Mumbai, Navi Mumbai, Thane, Panvel and Goa — from single-director One Person Companies reporting a first auditor appointment to public company subsidiaries working through a mandatory rotation cycle. We draft the resolution, obtain the auditor’s written consent and eligibility certificate under Section 141, reconcile the tenure against the financial years the MCA portal will accept, and file inside the fifteen-day window.

What Is Form ADT-1?

Form ADT-1 is the statutory notice a company files with the Registrar of Companies to report the appointment of its statutory auditor. It is filed under Section 139(1) of the Companies Act, 2013, read with Rule 4(2) of the Companies (Audit and Auditors) Rules, 2014.

The filing obligation rests on the company, not on the auditor. Under the Companies Act, 1956 the position was the reverse — the auditor filed Form 23B to intimate the Registrar. The 2013 Act moved that duty to the company, and moved the exposure to penalty along with it.

What the form actually does is create a public record linking a named auditor to a named company for a stated tenure. The MCA then uses that record for cross-verification. When the company later files its , the auditor particulars have to reconcile with what the ADT-1 filing declared. A mismatch surfaces straight away.

A completed Form ADT-1 records:

• Whether the auditor is an individual or a firm, with the ICAI membership number or Firm Registration Number
• The category of appointment — first auditor by board, appointment at AGM, casual vacancy, or appointment by the Comptroller and Auditor General
• The financial years covered by the statutory auditor appointment
• The date of the board meeting or general meeting at which the appointment was made
• Details of the outgoing auditor, where the appointment follows a resignation or removal
• The audit committee’s recommendation, where the company is required to constitute one

Who Must File Form ADT-1?

Every company incorporated under the Companies Act, 2013 must file ADT-1 — private limited, public limited, One Person Company and Section 8 company alike. There is no turnover threshold and no exemption for dormant or zero-revenue companies.

Newly incorporated companies

Section 139(6) requires the board to appoint the first auditor within 30 days of incorporation. If the board fails to do so, the members must appoint within 90 days at an extraordinary general meeting. Since 14 July 2025 the resulting ADT-1 filing is mandatory in both cases. A company registered in June therefore completes its first auditor appointment and its Form ADT-1 well before its first financial year has even closed.

Companies appointing or reappointing at the AGM

This is the routine case. Section 139(1) permits appointment for five consecutive financial years, and the annual ratification requirement that once applied is gone — the Companies (Amendment) Act, 2017 deleted it with effect from 7 May 2018. ADT-1 is filed once for the five-year term, not every year. Some companies still file annually out of habit; it is not required unless there is a fresh appointment.

Companies filling a casual vacancy

Under Section 139(8) a casual vacancy is filled by the board within 30 days. Where the vacancy arose from a resignation, the appointment must also be approved by members in general meeting within three months of the board’s recommendation. The outgoing auditor files separately; the company files ADT-1 for the incoming one. Both are required, and one does not substitute for the other.

Companies inside a mandatory rotation cycle

Section 139(2) with Rule 5 applies rotation to listed companies, unlisted public companies with paid-up share capital of ?10 crore or more, private companies with paid-up share capital of ?50 crore or more, and any company with public borrowings from banks, financial institutions or public deposits of ?50 crore or more. An individual auditor serves one term of five years; an audit firm, two consecutive terms. matters here because the cooling-off period is five years, and a rotation deadline noticed late leaves no room to appoint a successor.

One Person Companies and small companies

No relief applies. includes the ADT-1 filing exactly as it applies to any other company. A single-shareholder OPC with no operations, no bank account activity and no revenue still appoints an auditor within 30 days of incorporation, and still reports that statutory auditor appointment to the Registrar.

How Did Auditor Appointment Reporting Evolve in India?

The reporting duty moved from the auditor to the company across three regulatory eras — the Companies Act, 1913, the Companies Act, 1956, and the Companies Act, 2013 — with each shift tightening accountability after a period of corporate expansion.

The Indian Companies Act, 1913 introduced compulsory audit for registered companies but left the reporting machinery thin. Appointment was largely a matter for the company’s own records, and the Registrar’s role was custodial. In an economy where the registered corporate sector was small and concentrated in a few trading and manufacturing houses, that was workable.

The Companies Act, 1956 formalised the position through Section 224. On receiving intimation of appointment, the auditor filed Form 23B with the Registrar within 30 days. Placing the duty on the auditor made sense in a licence-era economy where the state’s attention was fixed on capital issues and industrial approvals rather than on the granular disclosure practices of private companies.

Liberalisation in 1991 changed the scale of the problem rather than its nature. Company registrations climbed sharply through the 1990s and 2000s, foreign investment reshaped ownership patterns, and the number of entities the Registrar had to track outgrew what a paper-based regime could absorb. MCA21, launched in 2006, digitised filings and made electronic forms the default. Form 23B became an e-form — but the underlying design, in which the auditor filed and the company did not, survived intact.

The Satyam Computer Services fraud, uncovered in January 2009, forced a specific rethink of auditor accountability. The Companies Act, 2013 answered with a package of measures: mandatory rotation under Section 139(2), tighter disqualification tests under Section 141, reporting of suspected fraud under Section 143(12), and a transfer of the appointment-notice duty from the auditor to the company through Form ADT-1. If the company appoints the auditor, the 2013 Act reasoned, the company should answer for reporting it.

Refinement has continued since. The Companies (Amendment) Act, 2017 removed annual ratification, which had made the five-year tenure largely notional. The National Financial Reporting Authority was constituted in 2018 to oversee auditors of larger companies. And in 2025 the MCA closed the first-auditor gap and migrated Form ADT-1 to the web-based MCA21 V3 platform, where the form validates tenure against the financial year in real time and rejects mismatches at data entry rather than at scrutiny. The same amendment revised ADT-3 and converted ADT-4 from a prescribed format into a proper e-form.

Read together, thirty years of change point one way: the auditor appointment record has moved from a private minute-book entry to a live, cross-verified public dataset. That is why an unfiled ADT-1 now shows up in investor diligence rather than staying buried.

What Is the Due Date for Filing Form ADT-1?

Form ADT-1 must be filed within 15 days of the appointment. The clock runs from the date of the board meeting or general meeting at which the auditor was appointed — not from incorporation, and not from the financial year end.

A company incorporated on 5 April that holds its first board meeting on 30 April has until 15 May to file ADT-1. Miss that and the additional fee runs from 16 May. The fifteen-day period is not extendable, and there is no condonation route for an ordinary ADT-1 delay.

How Do You File Form ADT-1 on the MCA V3 Portal?

Form ADT-1 has been a web-based form on MCA21 V3 since 14 July 2025. The old V2 routine of downloading a PDF, completing it offline and uploading the signed file no longer applies. The eight steps below are the sequence we follow on every ADT-1 filing.

1. Pass the resolution. The board resolution — or the ordinary resolution at the AGM — must record the auditor’s name, ICAI membership number or Firm Registration Number, the financial years covered, and either the remuneration or the authority delegated to fix it. The signed resolution becomes an attachment to the form, so the minute book and the filing have to say the same thing.
2. Obtain the auditor’s written consent. This is required by the first proviso to Section 139(1). Consent must be given before the appointment is made. A consent letter dated after the board meeting is a defect that surfaces later, usually at the worst moment.
3. Obtain the Section 141 eligibility certificate. Rule 4(1) requires a certificate from the auditor confirming that the appointment falls within the ceiling under Section 141(3)(g), that the auditor is not disqualified under Section 141, and that the appointment is in accordance with the prescribed conditions.
4. Issue formal intimation to the auditor. The company writes to the appointed auditor confirming the statutory auditor appointment, and a copy of that intimation is attached to the form.
5. Log in to the V3 portal as a registered business user. The form sits under company e-filing on the MCA portal at . V3 pre-fills company data from the ROC database, so verify the CIN, registered office and financial year fields against your own records before going further — pre-filled does not mean correct.
6. Complete the form fields. Select the nature of appointment carefully: "first auditor by Board of directors/members" is now a distinct category. Enter the Firm Registration Number and the membership number of the signing partner separately, since V3 requires both where earlier versions accepted either. Record the audit committee recommendation if the company constitutes one, and the SRN of Form INC-28 where the appointment follows a tribunal order.
7. Reconcile the tenure against the financial years. V3 validates the appointment period against the financial year entered and rejects the form outright where the two disagree. A five-year appointment made at the AGM for FY 2025-26 must be stated as running FY 2025-26 to FY 2029-30 — not from the calendar date of the meeting.
8. Attach, sign and submit. Attach the resolution, consent letter, eligibility certificate and intimation copy. Affix the of a director or authorised signatory, pay the ADT-1 filing fees based on nominal share capital, and record the SRN generated on submission. ADT-1 runs under straight-through processing, so approval is automatic once the form is accepted.

Keep the SRN somewhere retrievable. It is quoted in later filings, and its absence turns a routine annual filing cycle into a hunt through email archives.

What Happens If You File ADT-1 Late?

A late ADT-1 attracts an additional fee calculated as a multiple of the normal fee, and the multiple rises with the length of the delay. Beyond the fee, Section 450 exposes the company and its officers in default to penalty.

The normal fee is itself modest. It is calculated on nominal share capital under the Companies (Registration Offices and Fees) Rules, 2014 — ?200 where share capital is below ?1 lakh, rising through slabs to ?600 where nominal capital is ?1 crore or more. Companies without share capital pay ?200. It is the multiplication that stings on a long delay, and nothing resets it.

Separately, Section 450 operates as the residual penalty provision wherever the Act prescribes no specific punishment. It exposes the company and every officer in default to ?10,000, with a further ?1,000 for each day the default continues, subject to a maximum of ?2,00,000 for the company and ?50,000 for an officer in default. In practice the additional fee is the routine consequence and Section 450 is the enforcement backstop — but both are live, and the ADT-1 late filing penalty is not something a company can simply price in and ignore.

Backdating a resolution to fit inside the fifteen-day window is not a fix. The V3 portal cross-checks the appointment date against the incorporation date and the financial year, and an inconsistency between Form ADT-1 and the minute book is precisely the discrepancy that surfaces during scrutiny, due diligence or a change of auditor.

How Does ADT-1 Compliance Differ Across Sectors?

The form is identical everywhere. What changes is where the risk sits — which is a function of how often a sector incorporates entities, how fast it crosses statutory thresholds, and whether a second regulator has a view on who may audit.

Startups and newly incorporated companies

The first auditor appointment catches founders off guard more than any other early filing. A company incorporated in March, still pre-revenue and still choosing an accounting stack, must appoint an auditor within 30 days and complete its ADT-1 filing within 15 days of that board meeting. Investors running diligence at seed or Series A routinely ask for the ADT-1 SRN alongside the certificate of incorporation. An unfiled form reads as loose governance and delays closing at exactly the point where speed matters.

Real estate and construction

Project-level entities are incorporated and wound down on a rolling basis, often several a year within one group. Each special purpose vehicle carries its own appointment deadline and its own Form ADT-1. Where the group also has RERA obligations, statutory auditor details feed into quarterly project reporting, so an appointment recorded inconsistently between the minute book and the Registrar creates a reconciliation problem across two regulators rather than one.

Manufacturing and companies crossing rotation thresholds

Rotation under Section 139(2) is triggered by paid-up capital and borrowing thresholds that a growing manufacturer crosses without making any deliberate decision about it. A company that raises paid-up capital past ?50 crore, or takes on bank borrowing past ?50 crore, moves into the rotation regime for the following appointment cycle. The practical failure is rarely the rotation itself — it is the timing. Realising in the AGM month that the incumbent has completed the permitted term, with no successor identified and no consent obtained, is a genuinely difficult position.

NBFCs and financial services entities

Sector regulators layer their own auditor-eligibility conditions on top of the Companies Act. An NBFC’s statutory auditor has to satisfy Reserve Bank criteria on tenure and on the number of group entities audited, in addition to Section 141. The auditor appointment filing itself is standard; the work sits in confirming eligibility under both regimes before the resolution is passed, because an appointment that fails a sectoral test has to be unwound rather than corrected.

Why Choose N D Savla & Associates for ADT-1 Filing?

We reconcile the appointment before we file, not after a rejection

Most ADT-1 rejections on V3 come from a tenure that does not match the financial year, or a Firm Registration Number entered where a membership number belongs. We check the resolution, the consent letter and the form against one another before submission. It is an unglamorous step that removes the majority of resubmissions.

The full auditor lifecycle, not a single form

Appointment, reappointment, , resignation, rotation planning and casual vacancy handling sit in one continuous file in our practice. Companies that treat them as separate errands are usually the ones that discover a gap three years later, when the cost of fixing it has multiplied twelvefold.

Companies Act practice, not form-filling

Statutory audit and ROC compliance sit in the same team here. That means the person completing your ADT-1 filing understands what the auditor will need at year end and what the Registrar will cross-check at annual filing — and flags the conflict now rather than in October.

Deadline tracking that runs ahead of the window

We maintain appointment and rotation dates per company and raise them before the window opens rather than inside it. Our published carries the recurring statutory dates; entity-specific appointment dates are tracked separately for each client.

Six offices across Maharashtra and Goa

Andheri, Charni Road, Vashi, Thane, New Panvel and Panaji. Resolutions get signed and documents get collected where your directors actually are, which matters more than it sounds when a fifteen-day clock is running.

Frequently Asked Questions on ADT-1 Filing

Related Compliance Services

• ADT-3 Filing on Auditor Resignation
• AOA Amendment under Section 14
• Auditor Appointment Services
• Authorised Capital Increase and Form SH-7
• Internal Audit Services
• Risk Control Matrix (IFC) Advisory