ITR-B Form: Income Tax Return to Disclose Undisclosed Income

(For Search and Seizure Cases [Chapter XIV-B])

The Central Board of Direct Taxes (CBDT) has introduced a new income tax return form, ITR-B, specifically designed for disclosing undisclosed income identified during search and seizure operations. This form, notified on April 7, 2025, under Section 158BC of the Income Tax Act, 1961, applies to cases initiated on or after September 1, 2024. The ITR-B Form aims to streamline compliance for taxpayers involved in block assessments under Chapter XIV-B of the Income Tax Act, ensuring proper reporting and taxation of previously unreported income. In this article, we'll provide detailed information regarding the ITR-B Form.

Our IndiaFilings experts help you to file ITR-B along with other Income tax return e-filing services, end-to-end expert assistance!

Start Filing!

What is the ITR-B Form?

ITR-B Form is a special income tax return used when income is found during a search or requisition conducted by the Income Tax Department. It applies to block period assessments, covering multiple years in which the income was not reported earlier. This form helps taxpayers disclose all such undisclosed income in one place and ensures proper compliance after a search operation. It is different from the regular ITR forms and is specifically tailored for search cases under Chapter XIV-B of the Income-tax Act.

Below, we have attached the ITR-B Form (Income tax return for Block Assessment - for search and seizure cases[Chapter XIV-B]) for your reference.

Who Can File ITR-B?

Here is the list of persons who can file ITR-B to report their undisclosed income based on the notification,

• Person whose accounts are required to be audited under Section 44AB of the Income Tax Act: This includes individuals and entities whose books of accounts are subject to audit as per the provisions of Section 44AB.
• Company: All companies, whether domestic or foreign, are required to file ITR-B if they have undisclosed income discovered during search and seizure operations.
• Political Party: Political parties are also mandated to file ITR-B to disclose any previously unreported income.
• Any other person subject to a search or requisition on or after 1st September 2024

Structure of the ITR-B Form

The ITR-B form is comprehensive and organised into multiple parts and schedules. Here is a brief overview of the structure of the ITR-B Form:

Key Sections Include:

• Part A - General Information: PAN, name, contact details, nature of employment, search dates, block period, and earlier returns.
• Part B - Computation of Income: Income from salary, house property, business/profession, capital gains, and other sources.
• Part C - Computation of Undisclosed Income: Year-wise, source-wise, and head-wise breakup of undisclosed income.
• Part D - Tax Payable: Calculation of tax, surcharge, cess, and interest payable on undisclosed income.
• Part E - Tax Payments and Credit Claims: Details of TDS, advance tax, self-assessment tax, and other eligible credits.
• Verification and Declaration: Declaration by the taxpayer confirming the correctness of the information provided.

How to File ITR-B Form?

The ITR-B form must be filed electronically in a specified manner, depending on the category of the taxpayer. Here's how it works:

Manner of Filing Based on Type of Person

The Income Tax Department has specified the following methods with respect to the specific taxpayers:

• For Companies, Audited Persons under Section 44AB of the Act, and Political Parties: Must file the return electronically using a Digital Signature Certificate (DSC).
• For All Other Persons: Has two options for electronic filing:
• Option 1: File electronically using a Digital Signature Certificate (DSC)
• Option 2: Submit the return electronically and verify using Electronic Verification Code (EVC)

Filing Process:

Here is the brief process regarding how to file the ITR-B Form:

• Log in to the e-filing portal of the Income Tax Department.
• Select "ITR-B" as the form type.
• Fill in all relevant sections, including details of undisclosed income and supporting documentation.
• Submit electronically using a digital signature or EVC, based on where you fit.
• Retain acknowledgment for future reference

Can Tax Credits be Claimed?

Yes, tax credits can be claimed against the tax liability on undisclosed income declared for the block period. However, such credits must not include self-assessment tax paid for the block period. Importantly, the claim and its allowability are not automatic—they are subject to verification of the Assessing Officer. This means taxpayers must maintain clear documentation and justification for the tax payments they intend to claim, as the final decision rests with the tax authorities during assessment.

Key Takeaways:

• New Rule Introduced: Rule 12AE has been added to the Income-tax Rules, 1962 to define the process for filing ITR-B in block assessment cases.
• Purpose: The ITR-B form is specifically meant to report undisclosed income identified during search and requisition operations for the block assessment period.
• Applicability: ITR-B must be used if a search (under Section 132) or requisition (under Section 132A) happens on or after 01.09.2024.
• E-Filing Requirement: The return must be filed electronically—either using a digital signature or an Electronic Verification Code (EVC).
• Claim of Tax Credits: You can claim tax credits (except for self-assessment tax), but only if verified and approved by the Assessing Officer.

Below is the CBDT Notification dated 7th April 2025 (No. 30/2025) regarding the ITR-B Form.

File your ITR-B Form through IndiaFilings

Don't let the complexity of ITR-B filing slow you down—let the experts at IndiaFilings handle it for you. From interpreting search notices to accurately reporting undisclosed income and claiming eligible tax credits, our professionals ensure 100% compliance with the latest CBDT rules. With end-to-end support for Income tax return e-filing and timely submission, we help you avoid penalties and stay compliant. 

Let’s connect with IndiaFilings experts and start filing your ITR-B form effortlessly!

Get Started!

FAQs on ITR-B Form

1. What is Form ITR-B?

ITR-B is a special income tax return form introduced by the CBDT for reporting undisclosed income found during search and seizure or requisition operations under Sections 132 and 132A.

2. When was Form ITR-B introduced?

Form ITR-B was introduced through CBDT Notification No. 30/2025, dated 7th April 2025, and is applicable for searches initiated on or after 1st September 2024.

3. Who needs to file ITR-B?

ITR-B must be filed by anyone subject to a search or requisition action, including:

• Companies
• Persons audited under Section 44AB
• Political parties
• Any other person subject to a search or requisition on or after 1st September 2024

4. Under which section is ITR-B required to be filed?

ITR-B must be filed under Section 158BC of the Income-tax Act, 1961, which governs block assessments in search and requisition cases.

5. What is a block assessment?

Block assessment is a procedure under the Income Tax Act, specifically governed by Section 158 B. It is initiated when the Income Tax Department conducts a search due to suspicions of undisclosed income. The assessment covers a "block period" of six previous financial years, allowing authorities to evaluate all income, expenditures, and deductions comprehensively during this timeframe

For example, if a search is conducted on September 15, 2024, the block assessment will cover the financial years from 2018-2019 to 2023-2024, plus part of 2024, and any undisclosed income found needs to be reported in the newly introduced ITR-B Form.

6. Is ITR-B different from regular ITR forms?

Yes, ITR-B is designed specifically for search-related cases and is not used for regular annual income tax filing. It deals exclusively with undisclosed income discovered during enforcement actions.

7. What is the structure of the ITR-B form?

The ITR-B form consists of several parts:

• Part A: General Information
• Part B: Computation of Income
• Part C: Undisclosed Income
• Part D: Tax Payable
• Part E: Tax Payments and Credit Claims
• Verification & Declaration

8. How should companies and audited entities file ITR-B?

They must file the form electronically using a Digital Signature Certificate (DSC) as mandated by the CBDT.

9. Can individuals file ITR-B without a DSC?

Yes, individuals and entities not requiring audit can file the return electronically using either:

• A Digital Signature Certificate (DSC), or
• Electronic Verification Code (EVC)

10. Can tax credits be claimed in ITR-B?

Yes, tax credits such as TDS, advance tax, or other taxes paid can be claimed, excluding self-assessment tax. These claims are subject to Assessing Officer’s verification.

11. Can self-assessment tax be claimed in ITR-B?

No, self-assessment tax payments for the block period cannot be claimed as a credit against undisclosed income under ITR-B.

12. How can IndiaFilings help me file ITR-B?

IndiaFilings offers end-to-end support for filing ITR-B, including understanding the notice, preparing documentation, calculating undisclosed income, and claiming eligible tax credits. Our experts ensure accurate e-filing in compliance with Income tax rules—helping you avoid errors, delays, and penalties.

About the Author