Tax Audit Due Date 2026: Why CBDT Should Decide on Extension Early

Summary: The article examines the recurring extension of statutory due dates under the Income-tax Act, 1961, and asks whether compliance deadlines should be fixed after adequately considering the practical difficulties faced by taxpayers and professionals. Changes in return formats and utilities, delayed availability of utilities, natural events, the COVID-19 pandemic and technical issues have historically affected timely compliance. The concern is particularly significant for assessees whose accounts require audit because prescribed forms and reports may have to be furnished before the return of income. For FY 2025-26 relevant to AY 2026-27, the ordinary due date for tax audit reports in cases where the return is due on 31 October 2026 is 30 September 2026; the due dates of other forms must be checked under their respective provisions. A proposed strike by bank employees on 28, 29 and 30 September 2026, following the fourth Saturday and Sunday, could affect branch-based banking services during the last five days of September. The article reviews extensions granted in earlier years and observes that decisions have sometimes been announced close to the existing deadline. It suggests that any extension under consideration should be announced early to reduce uncertainty. In the longer term, it advocates a coordinated compliance framework that takes account of utility availability, completion of audits, prescribed forms and filing of returns, so that extensions become exceptional rather than recurring.

Introduction

Extensions of due dates for compliance under the Income-tax Act have become a recurring feature. This raises an important question: are statutory deadlines fixed after sufficient consideration of the practical difficulties taxpayers and professionals face in completing the required work?

Around twelve years ago, the Gujarat High Court had occasion to consider the issue of fixing due dates for filing returns of income. The underlying practical concern remains relevant. Changes are made to the formats and utilities of returns and other forms, but the corresponding utilities and requirements may become available substantially later than the announcement of the due dates. In some years, taxpayers and professionals have had only a short period to work with the final utilities before the filing deadline.

Practical Difficulties in Complying with Due Dates

Different circumstances can affect the timely completion of tax compliances. Heavy rainfall, floods, the COVID-19 pandemic, technical issues on the income-tax portal and other unforeseen events have, in the past, led to requests for extensions.

The issue becomes more significant where an assessee is required to have the books of account audited. The due dates for furnishing an audit report and filing the return of income are generally separate. Before filing a return, an assessee may also need to furnish forms and reports such as:

• Form No. 10, where applicable to a trust claiming accumulation of income;
• Form No. 10B or Form No. 10BB, as applicable, where an audit report is required for a trust or institution;
• Form No. 3CA or 3CB together with Form No. 3CD, wherever tax audit provisions apply; and
• Other prescribed forms and reports depending on the assessee and the applicable provisions.

These forms may require information that can be finalised accurately only after the audit and compilation of the relevant financial records. Their respective due dates are not necessarily identical. In particular, the Income Tax Department states that Form 10 has to be furnished at least two months before the due date for filing the return under Section 139(1), whereas Forms 10B and 10BB are linked to the specified audit-report date.

This leads to a practical question: how should the deadlines for audit reports, other prescribed forms and returns be coordinated when the information needed for one compliance depends on completion of another?

For assessees subject to tax audit, a common date such as 31 October for completing related compliances could be considered as a policy proposal. Such a change would require examination of the statutory provisions governing each form and the present requirement that certain reports be furnished before the return due date. It should not be assumed that all existing deadlines can be aligned merely through an extension announcement.

Due Dates for FY 2025-26

For FY 2025-26 relevant to AY 2026-27, the ordinary specified date for furnishing a tax audit report is 30 September 2026 where the applicable return-filing due date is 31 October 2026. Where a different return due date applies, the audit-report deadline must be checked separately. The Income Tax Department has confirmed the 30 September 2026 date for the relevant tax audit cases.

The due dates for Form 10, Forms 10B and 10BB, and other prescribed reports should be determined under their specific provisions. It would be inaccurate to state that all these forms are due on 30 September 2026. Forms 10B and 10BB are generally linked to the specified date referred to in Section 44AB, while Form 10 follows a different timing requirement.

There is a further practical concern arising from the proposed bank employees’ strike on 28, 29 and 30 September 2026. The preceding dates, 26 and 27 September, fall on the fourth Saturday and Sunday. If the proposed strike proceeds, branch-based banking and certain related services may be affected during the last five days of September. The extent of disruption will depend on participation and the arrangements made by individual banks; the proposed strike should not be described as a confirmed closure of every banking service.

In these circumstances, taxpayers and professionals may be concerned about completing banking-dependent work and associated tax compliances within the prescribed time. The situation may also lead to representations to the Central Board of Direct Taxes (CBDT) seeking an extension. A representation or a proposed strike does not, by itself, change a statutory due date. Taxpayers should continue to work to the existing deadline unless the CBDT announces a change.

Experience of Earlier Years

Extensions of tax audit-related deadlines have been granted in several earlier assessment years. The table below retains the historical overview while distinguishing the final extended date from intermediate extensions. Dates in older years should be read with the applicable CBDT orders, particularly where extensions were granted in stages or only for specified categories of assessees.

For AY 2017-18 and AY 2018-19, the final dates followed earlier intermediate extensions. For AY 2025-26, CBDT Circular No. 15/2025 further extended the audit-report date from 31 October to 10 November 2025. These examples show why the date of each extension and the class of assessees covered should be checked before comparing years.

The history also shows that some decisions have been communicated very close to the then-applicable deadline.

Need for a Timely Decision

Past experience indicates that, where an extension is considered necessary, it may be announced on the last day or shortly before the due date. Such an extension provides relief from the immediate deadline, but a late announcement leaves taxpayers, tax professionals and auditors uncertain while they plan their work.

Completing an audit requires obtaining information from clients, finalising financial statements, preparing the tax audit report and furnishing the applicable forms. Where additional reports or forms depend on the same financial information, their preparation must also be coordinated with the audit.

If the competent authority is considering an extension for AY 2026-27, an early announcement would give taxpayers and professionals greater certainty and allow them to plan more effectively. Until an official order is issued, however, the existing due dates remain the basis for compliance.

The broader issue also calls for a longer-term review. Repeated extensions may indicate that the time allowed for a set of interdependent compliances needs closer examination. Due dates should take account of when final utilities become available and the sequence in which audits, reports, forms and returns must be completed.

Conclusion

The recurring requests for extensions indicate scope for a more practical and coordinated approach to statutory due dates. Utility availability, completion of audits, furnishing of prescribed forms and filing of returns are interlinked processes. Their deadlines should be considered together, while respecting the different requirements laid down for each form.

For AY 2026-27, taxpayers and professionals should proceed on the basis of the currently applicable deadlines and monitor official CBDT announcements for any change. The proposed bank strike may add to practical difficulties, but it does not automatically extend a tax deadline.

In the longer term, the objective should be a compliance framework in which realistic timelines are built into the regular calendar and extensions become exceptional rather than recurring.