ITR-BN: The New Return Form for Block Assessments – What Every Taxpayer Should Know
CBDT’s new form puts the entire block-period tax history on the assessee’s table
Search proceedings have always been among the most serious events in income-tax administration. But with the introduction of ITR-BN, the post-search compliance process has now received a completely new framework.
On 24 July 2026, the Central Board of Direct Taxes (CBDT) notified the Income-tax (Third Amendment) Rules, 2026, introducing Form ITR-BN for filing a return in block assessment cases arising from search and requisition proceedings.
The form is deemed effective from 1 April 2026. In other words, it is not something taxpayers need to worry about “from next year”. It is already relevant for searches initiated under the new provisions from the beginning of the current tax year.
And if one looks at the information that ITR-BN demands, one thing becomes clear:
The block assessment return is going to be much more than a routine tax return.
What exactly is ITR-BN?
The new Form ITR-BN has been introduced specifically for block assessment proceedings in search and requisition cases.
Rule 180 prescribes the form, while Rule 332 contains its format. The form is to be filed in response to a notice issued under section 294, including cases covered by section 295 relating to other persons.
This is an important change in approach.
Instead of dealing with individual assessment years in isolation, the taxpayer is required to present a consolidated picture of the relevant block period.
The Department is essentially saying:
“Show us the complete picture of the block period.”
And the form asks for a surprisingly detailed picture.
The 60-day clock
Once the Assessing Officer issues a notice under section 294, the notice will specify the period within which the return must be furnished.
That period cannot exceed 60 days.
Sixty days may sound comfortable when one reads it on paper.
But in a search case, 60 days can disappear very quickly.
The assessee may have to gather books, bank statements, investment details, property records, digital-asset information, earlier returns, TDS/TCS records, expenditure details and supporting evidence — and then reconcile everything with the seized or requisitioned material.
The lesson is obvious:
The preparation for ITR-BN cannot realistically begin when the 60-day notice arrives.
Flat 60% tax — and this is not an ordinary assessment
Section 192(1) provides for taxation of the undisclosed income of the block period determined under section 294 at a flat rate of 60%.
Section 192(2) further provides for an increase by surcharge, if any, as levied by the relevant Central Act.
Cess would apply additionally.
This makes the block assessment regime fundamentally different from the normal slab-based taxation framework.
The question, therefore, is not merely:
“How much income has escaped assessment?”
The first and more important question becomes:
“What constitutes undisclosed income for the block period?”
That distinction can determine whether an item attracts the special 60% regime or remains outside the block assessment.
ITR-BN asks for the taxpayer’s entire history
One of the striking features of the new form is the breadth of information it seeks.
The assessee has to provide details such as:
– Date of initiation of the search or requisition;
– Date of execution of the last authorisation;
– Relevant block period;
– Details of the notice issued under section 294;
– Document Identification Number (DIN);
– Returns already filed for every assessment year falling within the block period;
– The provision under which each return was filed;
– Acknowledgement numbers;
– Pending assessments and reassessments under both the Income-tax Act, 1961 and the Income-tax Act, 2025.
This is not simply a declaration of undisclosed income.
It requires the assessee to reconstruct the compliance history of the entire block period.
And that has practical significance.
The block return is not just about “cash found”
There is sometimes a popular perception that a search assessment is primarily about cash, jewellery, property or other physical assets found during the search.
ITR-BN tells a much broader story.
The computation of undisclosed income extends into areas such as:
– Valuable assets;
– Virtual Digital Assets;
– Expenditure;
– Claims of deductions;
– Exemptions;
– Other items falling within the statutory definition of undisclosed income.
Therefore, the professional preparing ITR-BN cannot restrict the exercise to the panchnama or the most visible search findings.
The entire financial picture of the block period needs to be reconstructed.
The provision likely to create substantial litigation: Rule 180(4)
Among the provisions associated with the new form, Rule 180(4) deserves particular attention.
Where credit is claimed against undisclosed income of the block period otherwise than by way of self-assessment tax for that period, the claim and its allowability are subject to verification by and satisfaction of the Assessing Officer.
This is potentially significant for credits such as TDS, TCS and advance tax, depending upon the precise circumstances and the manner in which the credit is claimed.
In ordinary tax compliance, taxpayers and professionals are accustomed to reconciling TDS/TCS and claiming corresponding credits through the return.
In block assessment proceedings, however, the new framework expressly brings the question of such credit within the verification and satisfaction mechanism of the Assessing Officer.
That means a taxpayer should not treat these credits as a mere computer-generated number.
TDS credit: the reconciliation should happen before filing
Suppose a taxpayer has undisclosed income identified during the block period but also has substantial TDS appearing in Form 26AS/AIS.
A casual approach would be:
“The TDS is already appearing in the Department’s system, so the credit will automatically follow.”
That assumption could be risky.
Under Rule 180(4), the allowability of the claim is subject to verification and satisfaction of the Assessing Officer where the credit is claimed otherwise than by self-assessment tax for the block period.
Therefore, the assessee should be ready with:
– Deductor-wise TDS reconciliation;
– Relevant invoices or income documents;
– Form 26AS/AIS reconciliation;
– Bank-credit trail;
– Corresponding income offered or disclosed;
– Previous-year and current-year credit mapping;
– Details of any mismatch;
– Evidence explaining why the credit relates to the block period.
In other words:
Don’t wait for the assessment hearing to build the reconciliation.
Build it before filing ITR-BN.
The same principle applies to TCS and advance tax
The problem is not restricted to TDS.
Any claim involving TCS or advance tax should be carefully mapped to the block-period computation and supported with documentary evidence.
This becomes particularly important where payments, income recognition and tax deductions fall in different periods.
A block assessment is already a high-stakes proceeding. A credit dispute can make the effective tax burden even more painful.
The professional should therefore prepare a credit matrix before filing the return.
A simple working could contain:
Particulars| Amount| Relevant Year| Credit claimed| Supporting evidence| Reconciliation status
TDS| ₹XX| AY XXXX-XX| ₹XX| 26AS + certificates| Reconciled
TCS| ₹XX| AY XXXX-XX| ₹XX| 26AS + documents| Reconciled
Advance Tax| ₹XX| AY XXXX-XX| ₹XX| Challan| Reconciled
This may look like additional paperwork.| | | | |
But in search matters, paperwork is often cheaper than litigation.| | | | |
ITR-BN creates a new professional challenge
The form effectively requires the taxpayer to put together three different pictures:
Picture 1 — What was already disclosed?
Returns filed, assessments completed, reassessments pending and taxes already paid.
Picture 2 — What has emerged from the search?
Assets, documents, transactions, expenditure, digital assets and other material relevant to undisclosed income.
Picture 3 — What remains taxable as undisclosed income for the block period?
Only after these three pictures are reconciled can the block-period computation be prepared properly.
This is why ITR-BN should not be treated as a form-filling exercise.
It is a reconstruction exercise.
Search cases will require a “block-period file”
A practical approach would be to create a dedicated Block Assessment Master File immediately after the search.
It should ideally contain:
- Search/requisition authorisation details;
- Panchnama and inventory;
- Notice under section 294;
- All returns within the block period;
- Assessment/reassessment orders;
- Bank statements;
- TDS/TCS statements and reconciliations;
- Advance-tax challans;
- Investment and asset records;
- Property transactions;
- VDA/digital-asset records, wherever applicable;
- Expense and deduction evidence;
- Seized-material-wise explanation;
- Year-wise and issue-wise computation of undisclosed income.
This file can become the backbone for preparing ITR-BN and subsequently defending the computation before the Assessing Officer.
One important caution
The introduction of ITR-BN should not be interpreted to mean that every item appearing in seized material automatically becomes undisclosed income.
The Department still has to apply the substantive provisions governing block assessment and undisclosed income.
Likewise, the mere fact that an item is not reflected in the block return does not automatically establish that it is taxable as undisclosed income.
The taxpayer’s explanation, books, earlier disclosures, statutory returns, source documents and the nature of the material found during search remain crucial.
Therefore, ITR-BN should be prepared strategically — not mechanically.
A new era of search assessments
The new return form represents a significant shift in the compliance architecture surrounding search assessments.
Earlier, professionals often approached search cases issue-by-issue and assessment-year-by-assessment-year.
The ITR-BN framework demands something broader:
Reconstruct the block. Reconcile the history. Identify the undisclosed income. Support every claim.
And the 60-day filing window makes advance preparation even more important.
Most importantly, taxpayers should not assume that tax credits will simply flow because they appear in the Department’s database. Rule 180(4) makes verification and the Assessing Officer’s satisfaction an important part of the credit claim mechanism.
The message is simple
ITR-BN is not merely a new return form. It is a new preparation discipline for search assessments.
The best defence in a block assessment may begin before the return is filed.
Reconcile the returns. Reconcile the taxes. Reconcile the assets. Reconcile the seized material. Reconcile the TDS, TCS and advance tax.
And above all, document the explanation before the notice becomes a hearing.
Because when the search is over, the real battle may only be beginning.
ITR-BN may be a form, but for the taxpayer it is effectively the first draft of the entire block-assessment defence.
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Disclaimer: This article is intended for general information and discussion. The precise computation of undisclosed income, eligibility of tax credits and consequences of search/requisition proceedings should be examined with reference to the facts of each case and the applicable statutory provisions.
