The clock starts the day the company is born
Most founders assume a new Private Limited company's first compliance job is the annual filing, a year away. It is not. The very first statutory deadline lands within thirty days of incorporation, and it is easy to miss because nothing prompts you: the company has to appoint its first auditor. This is the "first auditor" step the SPICe+ incorporation walkthrough flags as one of the clocks that begins the moment the certificate is issued. Here is exactly how it works — the thirty-day board appointment, the Form ADT-1 that used to be skipped and no longer can be, the five-year appointment at the first AGM, and what it costs to get any of it wrong.
Section 139(6) — the first auditor, inside thirty days
The rule sits in Section 139(6) of the Companies Act, 2013. For a company other than a Government company, the Board of Directors must appoint the first auditor within thirty days from the date of registration of the company. That is thirty days from incorporation — not from when you start trading, not from the end of the year. If the Board fails to make the appointment in that window, it must inform the members, and the members then appoint the first auditor at an extraordinary general meeting within ninety days. Either way, the first auditor holds office until the conclusion of the company's first annual general meeting, at which point the appointment is made afresh for a longer term.
Who you can appoint — and the consent that has to come first
The auditor must be a practising Chartered Accountant, or a firm of Chartered Accountants. Before the appointment is made, the proposed auditor has to give written consent and a certificate confirming that the appointment, if made, will be within the limits laid down in the Act and that the auditor is not disqualified. The disqualifications are the ones in Section 141 — the auditor cannot be an officer or employee of the company, cannot hold securities in it, cannot be indebted to it beyond the prescribed limit, and so on. Getting that consent and eligibility certificate on record is part of the appointment, not an afterthought.
Form ADT-1 — the filing companies used to skip, and no longer can
Once the auditor is appointed, the company has to tell the Registrar, and it does that in Form ADT-1, filed within fifteen days of the appointment. This is the part that has changed, and it catches people working from old advice.
For years there was a genuine grey area over the first auditor. Rule 4(2) of the Companies (Audit and Auditors) Rules, 2014 referred only to appointments under Section 139(1) — the ones made at the AGM — and said nothing about the first auditor under 139(6). So a widespread view held that ADT-1 was not required for the first auditor when the Board appointed within thirty days. That gap is now closed. The Companies (Audit and Auditors) Amendment Rules, 2025 (notified by the MCA as G.S.R. 359(E) and effective 14 July 2025) made ADT-1 mandatory for the first auditor too — whether the appointment is by the Board or by the members — and the form itself now carries a "Nature of Appointment" field with an explicit "First Auditor by Board/Members" option. So for any company incorporating now, the position is simple: appoint the first auditor within thirty days, and file ADT-1 within fifteen days of that appointment. No exemption to rely on.
At the first AGM — the five-year appointment under Section 139(1)
The first auditor's job ends at the first AGM, and there the company makes the real appointment. Under Section 139(1), the company appoints an auditor to hold office from the conclusion of that first AGM until the conclusion of the sixth AGM — a five-year term. A short point that trips people up: the Act originally required the members to ratify the auditor's appointment at every AGM in between, but that ratification requirement was removed by the Companies (Amendment) Act, 2017. The appointment now simply runs its five-year course without an annual ratification vote. And again, the company files a fresh ADT-1 within fifteen days of that AGM appointment.
When the auditor leaves mid-term — casual vacancy under Section 139(8)
Auditors sometimes resign, or the office falls vacant before the term is up. Section 139(8) deals with that. A casual vacancy is filled by the Board within thirty days. Where the vacancy is the result of the auditor's resignation, the Board's appointment must also be approved by the members at a general meeting convened within three months of the Board's recommendation, and the auditor so appointed holds office only till the conclusion of the next AGM. (A resigning auditor has a filing of their own to make — Form ADT-3 — but the company's job is to fill the seat and, once more, file ADT-1 for the new appointment.)
What it costs to get this wrong
Skipping the auditor appointment is not a quiet omission — it blocks everything downstream. No auditor means no audited accounts, and no audited accounts means the annual AOC-4 and MGT-7 cannot be filed, so one missed step turns into a stack of defaults with per-day late fees. On top of that, contravening the auditor-appointment provisions carries a penalty in its own right: under Section 147, where any of Sections 139 to 146 is contravened, the company is liable to a fine of ₹25,000 up to ₹5,00,000, and every officer in default to a fine of ₹10,000 up to ₹1,00,000. For a step that takes one board resolution and one form inside the first month, that is a lot of downside to leave on the table.
Where this sits in the company's first year
The first auditor is one of three things a brand-new Private Limited company owes in its opening months, alongside the INC-20A commencement-of-business declaration (within 180 days) and, if there is share capital paid in, the paperwork around that. From the first AGM onward it settles into the annual rhythm — the audited accounts, AOC-4, MGT-7 and the director KYC — all laid out in our Private Limited compliance calendar. Knowing this deadline exists is part of understanding what a company actually asks of you, which our comparison of the five business structures weighs before you incorporate at all.
How we handle it at RDA, Baner
At RDA Advisory, Baner, the first auditor appointment is part of how we set a new company up — not a loose end left for you to remember. We put the board resolution appointing the first auditor in place inside the thirty days, collect the auditor's consent and Section 141 eligibility certificate, and file ADT-1 within fifteen days — including for the first auditor, as the 2025 rules now require. At the first AGM we make the five-year appointment under Section 139(1) and file it, and if an auditor ever resigns mid-term we handle the casual-vacancy appointment and the members' approval so the seat is never left empty. Office No. 102, Snehraj Apartment, Baner, Pune 411045 · call +91 77570 45059.
Just incorporated? Don't let the first deadline slip
Registered a Private Limited company in Pune and not sure what the first thirty days ask of you? RDA appoints your first auditor on time, files the ADT-1, and keeps the rest of the first-year compliance — INC-20A, the first AGM, AOC-4 and MGT-7 — on a calendar so nothing lapses. Book a consult at rdatax.in or call +91 77570 45059, or see our ROC and secretarial service. RDA Advisory, Baner, Pune.
Verification note: The requirements described here are based on the Companies Act, 2013 and the Companies (Audit and Auditors) Rules, 2014, as administered by the Ministry of Corporate Affairs (mca.gov.in): the appointment of the first auditor of a company (other than a Government company) by the Board of Directors within thirty days of the date of registration under Section 139(6), failing which by the members at an extraordinary general meeting within ninety days, the first auditor holding office until the conclusion of the first annual general meeting; the appointment at the first AGM of an auditor holding office from the conclusion of that meeting till the conclusion of the sixth AGM under Section 139(1), the requirement of ratification at every AGM having been omitted by the Companies (Amendment) Act, 2017; the eligibility and disqualifications of auditors under Section 141 and the auditor's written consent and certificate; the filling of a casual vacancy by the Board within thirty days under Section 139(8), with approval of the members within three months where the vacancy arises from resignation; the filing of Form ADT-1 within fifteen days of the appointment, now mandatory for the first auditor following the Companies (Audit and Auditors) Amendment Rules, 2025 (G.S.R. 359(E), effective 14 July 2025); and the penalties under Section 147 for contravention of Sections 139 to 146. Forms, fees, thresholds and time limits are periodically revised by the MCA; confirm the current requirements for your company with your CA or company secretary. This is general information, not legal or professional advice.
