Notice Under Section 133(6) of Income Tax Act is one of the most commonly issued yet widely misunderstood tax notices in India. Whether you are a salaried individual, a business owner, or a financial institution, receiving an Income Tax Notice Under Section 133(6) does not necessarily mean you are in trouble — but it absolutely demands timely and accurate attention.
Section 133(6) of Income Tax Act grants the Income Tax Department broad powers to gather information from taxpayers and third parties alike, often to cross-verify financial data and detect discrepancies. In July 2023 alone, the department issued over one lakh such notices to taxpayers suspected of underreporting income, underscoring the scale and seriousness of this provision.
This comprehensive guide covers everything you need to know about the 133(6) Notice — from its legal meaning and who can issue it, to how you should respond and what penalties await non-compliance.
Table of Contents
What Is Section 133(6) of Income Tax Act?
Section 133(6) of Income Tax Act, 1961 is a statutory provision that empowers authorised income tax officials to formally request information from any person, entity, or third party. The primary purpose is to collect data necessary for tax assessment, verification of income, or investigation of potential tax evasion.
Unlike scrutiny notices or demand notices, a 133(6) Income Tax Notice is essentially an information-gathering tool. It is not a direct accusation of wrongdoing. However, it is a signal that the department requires additional data to verify the accuracy of a taxpayer’s filings.
The scope of this provision is notably broad. The department can use it to:
- Verify high-value financial transactions reported through Annual Information Statements (AIS)
- Gather data from banks, NBFCs, mutual fund houses, and other institutions
- Cross-check third-party information against a taxpayer’s filed returns
- Investigate unexplained income or irregular transaction patterns
Crucially, this section applies not only to registered taxpayers but also to individuals and entities that are not direct taxpayers, as long as they hold relevant financial information about a subject under inquiry.
Who Has the Authority to Issue a 133(6) Notice?
The Income Tax Department Notice under this provision can be issued by a range of authorised officials. Understanding who can send this notice helps taxpayers validate its authenticity.
Authorised officials include:
| Designation | Authority Level |
| Assessing Officer (AO) | Primary issuing authority for individual assessments |
| Deputy Commissioner of Income Tax | For complex or cross-jurisdictional cases |
| Commissioner of Income Tax | For high-value or sensitive investigations |
| Principal Commissioner / Director | In cases involving large enterprises or cross-border transactions |
Important: A notice issued under Section 133(6) must always come through official channels — either via registered post or the government’s income tax e-filing portal. Always verify its authenticity before responding.
When and Why Is a 133(6) Notice Issued?
The Income Tax Department typically issues an Income Tax Notice 133(6) when it identifies specific red flags or requires information that is not available from a taxpayer’s submitted returns. The most common triggers include:
Common Triggers for a Section 133(6) Notice
- Underreporting of income: When tax filings do not match data received from third-party sources such as banks or employers
- Suspicious high-value transactions: Transactions flagged in the Annual Information Statement (AIS) that were not reflected in the ITR
- Wrongful deduction claims: Claiming deductions or exemptions that appear inconsistent with supporting documentation
- Non-filing of returns: When an individual or entity with evident taxable income has not filed an ITR
- Third-party verification: When a bank or financial institution needs to confirm details related to a taxpayer under inquiry
- Survey or search-linked investigations: As a follow-up to searches or surveys conducted by the department
Therefore, receiving an ITR Notice of this nature is not always an indication of fraud — it may simply reflect a data mismatch that the department wants clarified.
What Information Can Be Requested?
An Income Tax Notice Under Section 133(6) can seek a wide range of information. The request is tailored to the specific inquiry at hand, but commonly sought details include:
- Bank account statements and transaction records
- Investment and portfolio details, including mutual funds, stocks, and fixed deposits
- Property purchase or sale documents
- Business transaction records, including invoices, purchase orders, and payment receipts
- Details of loans taken or given
- Details of cash deposits made during specific periods (notably, demonetisation-era deposits attracted many such notices)
- Information from employers regarding salaries, perquisites, or allowances paid
- Rental income records from property owners
Third parties such as banks, registrars, employers, or stockbrokers may also receive a 133(6) notice asking them to submit information about a taxpayer — even if the taxpayer themselves is unaware of the inquiry at that stage.
Section 133(6) Time Limit: What You Need to Know
One of the most frequently asked questions surrounding the Section 133(6) of Income Tax Act pertains to time limits — and rightly so, because delays can be costly.
Response Deadline for the Notice Recipient
Unlike many other provisions in the Income Tax Act, Section 133(6) does not prescribe a fixed statutory time limit for issuing the notice. This gives the department flexibility to seek information at any point during an assessment or inquiry.
However, the notice itself will specify a deadline for the recipient’s response — typically ranging from 15 to 30 days from the date of receipt. This deadline is strictly enforced.
Can You Request an Extension?
Yes, if you genuinely require more time to compile the requested documents, you can submit a written request for an extension to the issuing authority. However:
- The extension is not automatic — it is granted at the discretion of the Assessing Officer
- You must submit the extension request before the original deadline lapses
- Provide a valid reason and an estimated date by which you can comply
Time Limit for Initiating Assessment Proceedings
While there is no prescribed limit for issuing the notice, the overall assessment proceedings must be completed within the limits defined under Section 153 of the Act. Typically, assessments must be completed within 12 months from the end of the assessment year to which the income relates (subject to specific extensions under law).
How to Respond to an Income Tax Notice Under Section 133(6)
Receiving a 133(6) Income Tax Notice can be unsettling, but responding methodically and accurately protects your interests. Follow this step-by-step guide:
Step 1: Read the Notice Carefully
Do not panic. Start by reading the notice thoroughly to understand:
- The specific information or documents requested
- The deadline for submitting your response
- The issuing authority and their contact details
Step 2: Verify the Notice’s Authenticity
Cross-check the notice using the Income Tax Department’s e-filing portal (www.incometax.gov.in). A genuine Income Tax Department Notice will have a valid Document Identification Number (DIN). Any notice without a DIN is invalid.
Step 3: Gather All Relevant Documents
Based on the information requested, collect:
- Bank statements and passbooks
- ITR acknowledgments and supporting schedules
- Transaction records, invoices, or receipts
- Investment statements, Form 16, or Form 26AS
Step 4: Prepare a Factual, Accurate Response
Draft your response clearly. Ensure that every detail you provide is consistent with your filed returns and financial records. Avoid submitting incomplete or contradictory information, as this can escalate the inquiry.
Step 5: Submit Your Response
You can respond to a Section 133(6) of Income Tax Act notice through:
- Online: Log in to the Income Tax e-filing portal → Go to ‘Pending Actions’ → ‘Compliance Portal’ → Locate the notice and submit your response digitally
- Offline: In some cases, documents may need to be physically submitted to the issuing Assessing Officer’s office
Step 6: Retain Proof of Submission
Always keep copies of:
- The original notice
- Every document submitted
- Acknowledgment of submission (online portal confirmation or postal receipt)
Penalties and Consequences of Non-Compliance
Ignoring or inadequately responding to a Notice Under Section 133(6) of Income Tax Act carries serious consequences. The law does not treat non-compliance leniently.
Key Penalties for Non-Compliance
| Type of Default | Consequence |
| Failure to respond within the deadline | Penalty under Section 272A — ₹10,000 per default |
| Providing false or misleading information | Prosecution under Section 277 of the Income Tax Act |
| Persistent non-compliance | Enhanced scrutiny and potential best-judgment assessment |
| Concealment of information | Penalty equal to 100%–300% of the tax evaded (Section 271(1)(c)) |
Moreover, non-compliance can trigger a broader investigation into the taxpayer’s financial affairs, including scrutiny of past returns, which compounds the complications significantly.
Therefore, the wisest course of action is always to respond promptly and transparently.
Important Case Laws on Section 133(6)
Judicial decisions have substantially shaped the interpretation and practical application of Section 133(6) of Income Tax Act. Here are two illustrative scenarios:
Case Study 1: Unreported Purchase Transaction
A taxpayer purchased goods worth ₹30 lakhs from a vendor but failed to disclose this transaction in their income tax return. The Income Tax Department, upon receiving third-party data from the vendor’s filing, issued a 133(6) Income Tax Notice directing the buyer to furnish invoice copies, payment records, and bank statements. The taxpayer complied, revised their return accordingly, and the matter was resolved without further penalty — demonstrating that timely compliance is always the better path.
Case Study 2: Non-Resident with Undisclosed Indian Income
A taxpayer who had relocated abroad continued earning interest on domestic bank accounts and investments. However, they neglected to file returns on this Indian-sourced income. The department issued a Section 133(6) notice to both the individual and their Indian bank, requesting account statements and investment details. The taxpayer was subsequently required to file returns, pay applicable taxes, and also faced interest under Sections 234A, 234B, and 234C.
These case studies highlight that Section 133(6) operates effectively across a wide spectrum of taxpayer profiles and transaction types.
Section 133(6) vs Other Common Income Tax Notices
Understanding how the 133(6) Notice differs from other notices helps taxpayers respond appropriately:
| Notice Type | Section | Purpose | Typically Sent To |
| Information Gathering Notice | 133(6) | Collect financial data for verification | Taxpayers and third parties |
| Scrutiny Notice | 143(2) | Detailed examination of a filed return | Filed ITR taxpayers |
| Notice Before Best Judgment Assessment | 142(1) | Request for return filing or information | Non-filers or incomplete return filers |
| Defective Return Notice | 139(9) | Fix errors in filed ITR | Taxpayers with defective returns |
| Demand Notice | 156 | Recover outstanding tax dues | Taxpayers with unpaid taxes |
The key differentiator is that a Section 133(6) of Income Tax Act notice primarily serves an investigative and verification function, whereas other notices tend to address specific assessment or recovery actions.
Conclusion
Receiving a Notice Under Section 133(6) of Income Tax Act is not the end of the world — but it demands your immediate, careful, and accurate attention. Section 133(6) of Income Tax Act gives the Income Tax Department powerful tools to maintain transparency and ensure that every taxpayer fulfils their lawful obligations. The best approach is always to stay compliant, respond promptly, and seek professional guidance when needed.
At BestTaxInfo, our team of experienced tax professionals is ready to guide you through every step — from analysing your notice and gathering documents to drafting a watertight response and representing your case before tax authorities.
Contact BestTaxInfo today for a personalised consultation and take control of your tax compliance with confidence.
Your financial safety is our priority.