Audit rotation under Section 139 — practical guide

Section 139(2) Companies Act 2013 + Rule 5 Audit and Auditors Rules. Mandatory rotation of statutory auditors. Here's the practical decision tree.

Who has to rotate?

• All listed companies.
• Unlisted public companies with paid-up share capital ≥ ₹10 cr.
• Private limited companies with paid-up share capital ≥ ₹50 cr.
• Any company with public borrowings (loans + deposits) ≥ ₹50 cr.

Small + medium private limited companies are exempt. So roughly 90% of an average CA firm's book is not affected — but the 10% that is generates the largest fees.

Tenure limits

• Individual auditor: max one term of 5 consecutive years.
• Audit firm: max two terms of 5 consecutive years (i.e. 10 years total).
• Cool-off: 5 years before re-appointment to the same client.

How the 5-year cool-off works in practice

The cool-off applies to the firm AND any other firm in the same network (common partners, common branding, common control). So splitting your firm into "A" and "B" partnerships to keep an audit doesn't work; ICAI's peer-review team checks for related firms.

Once the cool-off starts, the same partner can't join the new audit firm and re-appoint themselves to the same client — that's also blocked.

Common edge cases

1. Company grows past threshold mid-year.Rotation kicks in from the next AGM. You don't lose the audit immediately, but plan succession.
2. Auditor resigns mid-term.The replacement's clock starts from their appointment date; the 5-year term restarts.
3. Group of companies.Each subsidiary's tenure runs separately. Parent + subsidiary can have different auditors.
4. Multiple branches / joint auditors.Each firm's tenure runs independently.

Track the "first year of audit" per client in your practice software, alert 12 months before the rotation deadline, and start a successor-search workflow at that point. Last-minute rotations are how firms lose clients permanently.