{"id":1353,"date":"2026-04-04T17:34:24","date_gmt":"2026-04-04T13:04:24","guid":{"rendered":"https:\/\/caalokkumar.com\/my-writing\/?p=1353"},"modified":"2026-04-04T17:34:28","modified_gmt":"2026-04-04T13:04:28","slug":"form-itr-b-filing-block-assessment-income-tax","status":"publish","type":"post","link":"https:\/\/caalokkumar.com\/my-writing\/form-itr-b-filing-block-assessment-income-tax\/","title":{"rendered":"What is ITR-B? Block Assessment Return Filing in Search and Seizure Cases"},"content":{"rendered":"\n

Form ITR-B Filing \u2013 Complete Guide to Block Assessment in Income Tax<\/strong><\/p>\n\n\n\n

Search and seizure cases require a very different compliance approach from regular income-tax return filing. For such cases, the law now provides a separate block assessment mechanism, and the prescribed return form for that mechanism is Form ITR-B<\/strong>. This is not a normal annual ITR. It is a special return meant for reporting undisclosed income of the block period<\/strong> in consequence of a search under section 132 or requisition under section 132A. The present block assessment regime applies where the search or requisition is initiated on or after 1 September 2024<\/strong>, and Form ITR-B was notified by CBDT Notification No. 30\/2025 dated 7 April 2025<\/strong> under Rule 12AE<\/strong>.<\/p>\n\n\n\n

The block assessment framework was reintroduced through the Finance (No. 2) Bill, 2024 \/ Finance Act, 2024<\/strong> because the earlier search assessment model under reassessment provisions was leading to staggered year-wise proceedings, prolonged litigation, lack of coordinated investigation, and a long period of uncertainty for both taxpayers and the Department. The official memorandum clearly states that the objectives behind reintroducing block assessment were early finalisation of search assessments, coordinated investigation, and reduction in multiplicity of proceedings<\/strong>.<\/p>\n\n\n\n

What is Form ITR-B?<\/strong><\/p>\n\n\n\n

Form ITR-B<\/strong> is the return prescribed for block assessment of undisclosed income<\/strong>. It is required to be filed when the Assessing Officer issues a notice under section 158BC<\/strong> or section 158BC read with section 158BD<\/strong> after a search or requisition action. The Income Tax Department\u2019s user manual expressly states that ITR-B is to be used where a person or entity is subjected to search under section 132 or requisition under section 132A, and the AO issues the block assessment notice.<\/p>\n\n\n\n

In simple words, a regular ITR reports the income that a taxpayer voluntarily discloses for one assessment year. ITR-B, on the other hand, is a notice-driven return for a consolidated \u201cblock period\u201d and is meant for income that the law treats as undisclosed in consequence of search proceedings.<\/strong> <\/p>\n\n\n\n

Introduction and Preamble \u2013 Why ITR-B Was Introduced<\/strong><\/p>\n\n\n\n

The present block assessment regime is part of Chapter XIV-B<\/strong>. According to the official memorandum to the Finance Bill, 2024, after the Finance Act, 2021, search cases were effectively being handled through the reassessment route. Field experience showed several difficulties under that model. In search matters, only the time-barring year would often be reopened first, followed by separate proceedings for other years, which meant the same search could keep the taxpayer engaged in litigation for many years. The memorandum records that this made the process time-consuming, raised litigation costs, created scope for inconsistent additions across years, and made coordinated investigation difficult.<\/p>\n\n\n\n

To solve those problems, the law reintroduced a single consolidated block assessment system<\/strong> for search and requisition cases initiated on or after 1 September 2024<\/strong>. The official departmental guidance now describes block assessment as a special procedure<\/strong> for a single consolidated assessment<\/strong> of the total undisclosed income of the block period. It also clarifies that any pending assessments or reassessments abate and merge into the block assessment, and that the undisclosed income assessed under this scheme is taxable at 60%<\/strong>.<\/p>\n\n\n\n

From When Does This Regime Apply?<\/strong><\/p>\n\n\n\n

The official departmental material states that block assessment applies where a search under section 132 or requisition under section 132A is initiated on or after 01-09-2024<\/strong>. The user manual for ITR-B also uses the same date.<\/p>\n\n\n\n

There is also an important transition point after the coming into force of the Income-tax Act, 2025<\/strong> from 1 April 2026<\/strong>. The official transition FAQs clarify that where a search was initiated before 1 April 2026<\/strong>, the proceeding continues under the Income-tax Act, 1961<\/strong>, by virtue of the saving clause in section 536(2)(v)<\/strong> of the new Act. So, in practical terms, many current ITR-B proceedings may still continue under the old Act numbering, even though the new Act has come into force.<\/p>\n\n\n\n

What is the \u201cBlock Period\u201d?<\/strong><\/p>\n\n\n\n

The Income Tax Department explains that the block period<\/strong> includes:<\/p>\n\n\n\n

    \n
  1. the\u00a0six previous years<\/strong>\u00a0preceding the previous year in which the search or requisition is initiated; and<\/li>\n\n\n\n
  2. the period starting from\u00a01 April of the previous year<\/strong>\u00a0in which the search or requisition is initiated and ending on the date of execution of the\u00a0last authorisation<\/strong>.<\/li>\n<\/ol>\n\n\n\n

    This is why block assessment is much wider than an ordinary annual assessment. In practice, once the date of first search authorisation and the date of last execution are identified, the system derives the block period and the return has to be prepared for that entire span. The official ITR-B form itself captures these dates and auto-derives the block period.<\/p>\n\n\n\n

    What Counts as \u201cUndisclosed Income\u201d for Block Assessment?<\/strong><\/p>\n\n\n\n

    The departmental assessment page explains that section 158B gives an inclusive meaning to undisclosed income. It covers not only undisclosed assets such as money, bullion, jewellery, virtual digital assets, foreign assets, and other valuable articles<\/strong>, but also income reflected through books, documents, or transactions that was not disclosed or would not have been disclosed. The same official guidance also states that incorrect claims of expenses, exemptions, deductions, or allowances<\/strong> can be treated as undisclosed income.<\/p>\n\n\n\n

    This is a very important practical point. In a search case, the issue is not limited to cash or jewellery found during search. The exposure may arise from seized papers, digital evidence, loose sheets, parallel books, unexplained transactions, unrecorded sales, accommodation entries, bogus expense claims, unexplained investments, or even claims that the Department alleges were wrongly made.<\/p>\n\n\n\n

    Main Reasons for Block Assessment and ITR-B Filing<\/strong><\/p>\n\n\n\n

    The legal trigger for ITR-B filing is not voluntary. It generally arises because of one or more of the following reasons:<\/p>\n\n\n\n

    1. Search under section 132<\/strong><\/p>\n\n\n\n

    If the Income Tax Department conducts a search under section 132 on or after 1 September 2024, the AO may proceed under Chapter XIV-B and issue notice for filing ITR-B.<\/p>\n\n\n\n

    2. Requisition under section 132A<\/strong><\/p>\n\n\n\n

    Where books of account, documents, or assets are requisitioned under section 132A, the same block assessment mechanism can apply.<\/p>\n\n\n\n

    3. Proceedings against \u201cother person\u201d under section 158BD<\/strong><\/p>\n\n\n\n

    Block assessment is not confined only to the person searched. If material found during search relates to another person, proceedings may be initiated against that other person under section 158BC read with section 158BD<\/strong>. The Department\u2019s guidance specifically recognises this route.<\/p>\n\n\n\n

    4. Need for one consolidated assessment instead of multiple scattered proceedings<\/strong><\/p>\n\n\n\n

    The official memorandum says the scheme was brought back because the previous search-assessment system caused staggered reassessments, duplication of proceedings, and lack of coordination. ITR-B is therefore part of a single, consolidated search assessment architecture<\/strong>.<\/p>\n\n\n\n

    5. Abatement of pending assessments<\/strong><\/p>\n\n\n\n

    Once block assessment applies, pending assessments or reassessments abate and merge into the block assessment. This is one of the reasons why ITR-B becomes the central compliance document in a search case.<\/p>\n\n\n\n

    6. Determination of undisclosed income for the full block period<\/strong><\/p>\n\n\n\n

    The scheme is designed to assess total undisclosed income<\/strong> for the block period in a unified manner under section 158BB. Official guidance also notes that different categories of already disclosed income are excluded while computing block income, depending on whether income was assessed, returned, recorded in books before the search, or covered by specific TDS-based provisions.<\/p>\n\n\n\n

    Tax Impact Under Block Assessment<\/strong><\/p>\n\n\n\n

    This is one of the most sensitive parts of the regime. The official departmental guidance states that undisclosed income of the block period is taxable at 60%<\/strong> under section 158BA(7) read with section 113, along with surcharge where applicable.<\/p>\n\n\n\n

    The same official source further states:<\/p>\n\n\n\n