A client tells you that its existing auditor has “no objection” to your appointment. Can you accept the audit immediately? For an incoming chartered accountant, that is the wrong shortcut. The operative ICAI requirement is your own written communication with the previous auditor before accepting the audit position. A management statement that the old auditor has agreed does not replace that step.
The current rule appears in Clause (8) of Part I of the First Schedule as reproduced and explained in ICAI's Code of Ethics, Volume I, Thirteenth Edition 2026. ICAI states that this edition is applicable from 1 April 2026 in its announcement on the revised Code of Ethics.
The rule is written communication, not a magic document called an NOC
Clause (8) treats a chartered accountant in practice as guilty of professional misconduct if the member accepts a position as auditor previously held by another chartered accountant or specified certified auditor without first communicating with that person in writing.
That wording matters. In everyday practice, people often call the outgoing auditor's response an “NOC”. But the ethical obligation is not satisfied merely because the client says an NOC exists, nor does the outgoing auditor get an unrestricted veto over the client's choice. The purpose of the communication is to give the incoming auditor an opportunity to learn whether there are professional or other reasons why the appointment should not be accepted.
A recent ICAI disciplinary matter illustrates the distinction. In a 2026 order, the committee recorded that the incoming auditor had relied on a management representation claiming that the previous auditor had no objection. It nevertheless held that the incoming auditor was mandatorily required to communicate in writing with the previous auditor before accepting the assignment. The ICAI disciplinary order is useful because it shows why a client-side assurance is not a substitute for the incoming auditor's own compliance.
Send the communication before acceptance, not as a clean-up exercise later
The sequencing is central: identify the previous auditor, send the written communication, retain evidence that it was delivered, consider the response or allow a reasonable time for one, and then decide whether the engagement can properly be accepted.
That means a firm should not treat the communication as paperwork that can be regularised after an engagement has already been accepted. Client pressure, a reporting deadline or a statement that “the previous auditor already knows” does not ordinarily reverse the sequence in Clause (8).
The Code contains a narrow practical treatment for government companies, banks or their branches where the appointment arrives so late that there is no time to wait for the outgoing auditor's reply. In that situation, after sending the required communication, the incoming auditor may give a conditional acceptance and attend to urgent work, making it clear to the client that final acceptance remains subject to professional objections and the information received from the previous auditor. That is a specific situation, not a general licence to accept first and communicate later.
Proof that you sent something is not always proof that the communication reached the auditor
The Code asks members to retain positive evidence of delivery. This is an important distinction for engagement files: an outgoing email sitting in “Sent”, or evidence that a letter was merely posted, is not automatically the same as evidence contemplated by the Code.
ICAI lists methods that would normally provide the required evidence, including:
- a letter sent by Registered or Speed Post with acknowledgement due;
- hand delivery against written acknowledgement;
- acknowledgement of the communication from the retiring auditor's email address registered with ICAI or the retiring auditor's last known official email address; and
- the UDIN route, subject to the guidelines issued by the Council for that mechanism.
The practical control is simple: the engagement file should contain the communication and the evidence showing that it reached the outgoing auditor through a recognised route. The Code also deals with specific postal-return situations, so a returned envelope should be evaluated against the current wording rather than automatically being treated as failed communication.
No reply does not necessarily create a permanent deadlock
The previous auditor has a corresponding professional role. On the incoming auditor's request, the retiring auditor is expected to provide known information that the incoming auditor needs to consider before deciding whether to accept the engagement.
If the retiring auditor does not respond without justifiable cause, the Code recognises that the incoming auditor should not be trapped indefinitely. After waiting a reasonable time for a reply, the incoming auditor can act. The Code does not turn “reasonable time” into a universal number of days, so the file should show when delivery occurred, the urgency and circumstances of the assignment, any follow-up made, and why the firm considered the waiting period reasonable.
This is different from saying that silence equals an NOC. The better analysis is that the communication obligation has been performed, delivery is evidenced, a reasonable opportunity to respond has been given, and the incoming auditor then makes the acceptance decision using the information available.
An objection from the previous auditor has to be assessed, not just filed
The communication exercise matters because some facts can affect whether acceptance is professionally proper. Two areas deserve particular attention.
Outstanding undisputed statutory audit fees
The current Code explains that non-payment of undisputed audit fees for a statutory audit under the Companies Act, 2013 or other statutes can be a professional reason for non-acceptance. The Code also contains specified exceptions, including the provisions dealing with a sick unit and a company in a corporate insolvency resolution process where a resolution professional has been appointed.
For this purpose, the Code explains when an amount reflected in signed accounts is treated as undisputed audit fee and includes applicable taxes and out-of-pocket expenses. An incoming firm should therefore establish the facts rather than rely on a vague statement that “some old professional fees are pending”.
A previous qualified audit report
A qualification by the outgoing auditor is not, by itself, an automatic lifetime bar on a new auditor accepting the engagement. But it is a reason to understand the circumstances. If the previous auditor qualified the report for sound professional reasons, the incoming auditor should not accept merely to provide the client with a more convenient outcome. The Code requires the incoming auditor to consider the full facts and the professional basis of the previous auditor's position.
Who counts as the previous auditor?
The Code uses “previous auditor”, “retiring auditor”, “outgoing auditor” and similar expressions in this context. The practical focus is the chartered accountant who immediately preceded the proposed incoming auditor on the same or a similar audit assignment or scope.
A gap in time does not necessarily erase the obligation. ICAI's guidance makes clear that communication can still be mandatory where the earlier chartered accountant was the auditor for a year other than the immediately preceding year. Before deciding that there is “no previous auditor”, check who last held the same or similar assignment.
The obligation is not confined to Companies Act statutory audits
The Code expressly applies the communication requirement across types of audit, including statutory audit, tax audit, GST audit, internal audit, concurrent audit and other audits. It also states more broadly that communication is mandatory for audit or report work where the previous auditor is a chartered accountant. If the previous professional was not a chartered accountant, ICAI describes communication as a healthy practice rather than the Clause (8) mandate.
For a company audit, there is a separate acceptance check as well. Clause (9) requires the incoming auditor to ascertain whether the applicable legal requirements for the appointment, including Sections 139 to 141 of the Companies Act, 2013 where relevant, have been complied with. A proper Clause (8) communication does not cure a defective statutory appointment.
A workable acceptance file for the incoming auditor
- Identify the predecessor and the scope. Determine who last held the same or a similar audit assignment; do not assume a one-year gap eliminates the requirement.
- Communicate before accepting. Write directly to the previous auditor and ask whether there are professional or other reasons that should affect acceptance.
- Retain positive evidence of delivery. Use a mode supported by the current Code and keep the acknowledgement with the engagement-acceptance records.
- Consider the response. Investigate matters such as appointment defects, unpaid undisputed statutory audit fees, a previous qualification or other information relevant to acceptance.
- If there is no reply, document the waiting period. After a reasonable time, the Code permits the incoming auditor to act; record the chronology and basis for proceeding.
- Complete the separate legal and independence checks. Communication with the previous auditor is one part of acceptance, not a substitute for eligibility, independence, statutory appointment and other engagement-level requirements.
So the practical answer to “Do I need an NOC?” is more precise than a yes-or-no label. You need to comply with the ICAI requirement to communicate in writing with the previous auditor before acceptance and retain appropriate evidence of delivery. You must then evaluate any professional reason raised. A client-supplied assurance of “no objection” does not replace that process, while a non-response, after properly delivered communication and a reasonable waiting period, does not automatically prevent the incoming auditor from proceeding.
