Non-quoting of DIN — From “Fatal Defect” to a “Curable Lapse”

Section 292-B of the Act safeguards notices and assessments from invalidation due to technical defects if they otherwise follow the Act.

The requirement of quoting a Document Identification Number (DIN) in the body of all the communications issued by the Income Tax Authority to the taxpayer has been one of the most significant changes in the year 2019. The Finance Minister had famously encouraged the taxpayers to throw communications without a DIN into the dustbin. Even though it was introduced with the intention to ensure transparency, traceability, accountability and create an audit trail within the tax administration, it has triggered an intense debate as to whether non-quoting of DIN is a curable defect under Section 292-B, Income-tax Act, 1961 (the “Act”). Through the Finance Bill, 2026 (the “Bill”), the legislature intends to settle this long-standing dispute.

Background

The Central Board of Direct Taxes (CBDT) vide Circular No. 19/2019 (CBDT Circular) dated 14-8-2019, mandated that every communication relating to assessment, appeals, orders, enquiry, investigation, penalty, prosecution, rectification, approval, etc. issued by the Income Tax Authority on or after 1 October 2019 must contain a computer-generated DIN. The CBDT Circular further stated in case any communication did not contain a DIN, it will be considered as invalid and shall be deemed never to have been issued, barring few circumstances, wherein the communication may be issued manually but only after recording reasons in writing and with prior written approval of the Chief Commissioner/Director General of Income Tax. Further, the said manually issued communication will have to be regularised within 15 working days of its issuance by uploading the same on the Income Tax Business Application (ITBA) system, generating the DIN and communicating the same with the assessee.

Further, Section 292-B of the Act safeguards notices and assessments from invalidation due to technical defects if they otherwise follow the Act.

Judicial precedents — The turning point

As the DIN mandate tightened, courts across India began dealing with cases where orders or notices lacked a DIN. Several rulings took a strict view, for instance:

1. Delhi High Court — CIT v. Brandix Mauritius Holdings Ltd.¹

In this case, the Income Tax Appellate Tribunal (ITAT)/Delhi High Court invalidated the final assessment order not carrying a DIN by relying heavily on the language of the CBDT Circular. However, the Supreme Court has granted an interim stay on the judgment of the Delhi High Court.

2. Bombay High Court — Hexaware Technologies Ltd. v. CIT²

In this case, the High Court invalidated the reassessment proceedings as the notice issued under Section 148 of the Act was issued without DIN by relying on the CBDT Circular, even though a separate letter was issued intimating the DIN for the reassessment notice.

Amendment proposed by the Finance Bill, 2026

The Bill proposes to amend Section 292-B of the Act, to state that no assessment shall be held to be invalid or shall be deemed to have been invalid on the ground of any mistake, defect or omission in respect of quoting of a computer-generated DIN, if the assessment order is referenced by the DIN in any manner.

The amendment therefore intends for the following:

1. Overruling the judicial precedents

The amendment intends to effectively overturn the judgment of the various High Courts, wherein assessment proceedings were held to be void in case DIN was not quoted on the assessment order or the notices initiating reassessment regardless of whether the DIN was generated and intimated by way of a separate letter.

2. Ending technical litigation based on missing DIN

By expressly providing that omission of a DIN is a curable defect, the legislature intends to prevent assessments from being annulled on purely technical grounds.

Possible issues arising out of the proposed amendment

The proposed amendment may open up new areas of litigation. The same are discussed hereinbelow:

1. What does “referenced by DIN in any manner” mean?

The amendment offers no guidance on what would constitute a valid reference of a DIN. Accordingly, questions may arise regarding validity of the assessment order in the following circumstances:

(a) If the DIN is mentioned only in the email body but not on the assessment order — will that qualify as “reference of DIN in any manner”?

(b) If the DIN is written in a separate letter issued after issuance of the assessment order.

(c) If the DIN is present in a show-cause notice or earlier correspondence for the same proceeding but missing on the final assessment order.

2. Retrospective application and validation of past notices/orders

While the memorandum to the Bill clearly states that the amendment will operate retrospectively from 1 October 2019, the actual text of the Finance Bill itself does not expressly incorporate this retrospective clause. If the Finance Act, 2026 is enacted with the same language, then in the absence of a clear statutory declaration of retrospective application, assessee may argue that the amendment should be applicable prospectively.

(a) The courts have consistently held that retrospectivity must be expressly stated or must arise only when the amendment is truly clarificatory.³ For being clarificatory, the earlier provision must have been unclear, confusing, or open to more than one reasonable interpretation. Moreover, a clarification cannot broaden, shrink, or change the meaning or scope of the original section.

3. Impact on communications/orders other than assessment orders

The amendment seeks to validate only the assessment orders. Therefore, non-quoting of DIN in other orders/communications not pertaining to assessment, like an order imposing penalty, a notice granting sanction for initiation of prosecution, an order cancelling registration under Section 12-AB, etc., can still be said to be invalid and non est in law.

4. Dilution of the audit trail discipline

The CBDT Circular was issued with the intention of maintaining a proper audit trail of all communication issued by the Income Tax Department. The proposed amendment might end up encouraging issuance of notices/communication by the Department without maintaining a proper audit trail, thereby diminishing overall transparency.

Conclusion: Practical implications for taxpayers

While the Tax Department surely will argue that the proposed amendments validate even the notices/orders invalidated by courts in past due to non-quoting of DIN, the taxpayers may argue against its retrospective application.

In any case, as the proposed amendment is limited to assessment orders wherein a DIN has been validly referenced to in any manner, the taxpayers may still question the validity of cases where no DIN is generated at all or where other communications/orders do not carry a DIN, like a letter granting sanction for reassessment, penalty orders, etc.

Further, it will be interesting to see if any changes are further proposed with respect to the instant amendment when the Finance Act is finally enacted.