Auditor Rotation Services – Section 139(2) Mandatory Rotation
Transition Planning, New Auditor Selection, and ADT-1 Filing for Companies Subject to Mandatory Auditor Rotation Under the Companies Act 2013
Mandatory auditor rotation under Section 139(2) of the Companies Act 2013 is one of the most significant governance provisions for listed and large companies — designed to ensure auditor independence by requiring that no individual auditor or audit firm can audit the same company for more than one or two consecutive five-year terms. When the rotation period ends, the company must appoint a new auditor (or a new audit firm), and the outgoing auditor is "cooled out" for a period before they can be reappointed.
Auditor rotation is not a simple administrative task — it involves transition planning, knowledge transfer from the outgoing to the incoming auditor, renegotiation of audit fee structures, and careful compliance with the rotation timeline to avoid inadvertent continuity beyond the permitted period. Our team provides end-to-end rotation support: determining when rotation is due, identifying and onboarding a new audit firm, managing the outgoing auditor's ADT-3 resignation process, and filing ADT-1 for the newly appointed auditor.
Our Auditor Rotation Services
Rotation Timeline Assessment
Reviewing the company's auditor appointment history to determine the precise rotation deadline — counting continuous years of service by the individual auditor or partner-led audit firm — and alerting management well in advance of the mandatory change date.
New Auditor Selection Support
Assisting the Audit Committee and Board in identifying potential replacement audit firms — considering size, sector expertise, fee structure, and independence — and conducting eligibility checks under Section 141 for the shortlisted firms.
Transition Planning
Coordinating the handover between outgoing and incoming auditors — scheduling knowledge transfer meetings, ensuring working papers and prior year files are accessible, and communicating with both audit teams to minimise disruption to the audit timeline.
Board & AGM Resolution Management
Drafting the Board Recommendation and AGM Ordinary Resolution for appointment of the new auditor — incorporating the rotation reason and the new term details — with Explanatory Statement as required.
ADT-1 Filing for New Auditor
Filing Form ADT-1 for the newly appointed auditor within 15 days of the AGM appointment — with the new auditor's consent, eligibility certificate, and shareholder resolution as mandatory attachments.
ICAI Self-Regulatory Compliance
Advising both the outgoing and incoming auditors on their respective ICAI obligations during transition — communication of acceptance by incoming auditor, NOC from outgoing auditor, and compliance with the ICAI Code of Ethics during the transition period.
Mandatory Rotation — Who Is Covered?
| Company Type | Rotation Requirement | Maximum Continuous Period |
|---|---|---|
| Listed Companies | Mandatory | Individual: 5 years (1 term); Firm: 10 years (2 terms) |
| Unlisted Public Companies with paid-up capital ≥ ₹10 crore | Mandatory | Individual: 5 years; Firm: 10 years |
| Private Companies with paid-up capital ≥ ₹20 crore | Mandatory | Individual: 5 years; Firm: 10 years |
| Companies with public borrowings ≥ ₹50 crore | Mandatory | Individual: 5 years; Firm: 10 years |
| Other Private Companies and Small Companies | Not mandatory | Auditor can continue indefinitely (subject to AGM re-appointment) |
Frequently Asked Questions
Does auditor rotation apply to private limited companies?
Can the same audit firm continue if only the signing partner changes?
What happens if a company fails to rotate its auditor on time?
Auditor Rotation Due? Start Planning 12 Months Ahead.
Our team determines your rotation deadline, identifies and onboards the new audit firm, manages the transition process, and files ADT-1 on time — ensuring fully compliant auditor rotation with zero disruption.
Plan Auditor Rotation