Notice Under Section 133(6): Why the Department Is Asking for Information and How to Reply (AY 2026-27)

An email lands in your inbox with the subject "Notice under section 133(6) of the Income-tax Act, 1961". There is no tax demand in it, no error code, and often no assessment year under scrutiny. It simply asks you to furnish information - sometimes about your own bank accounts, sometimes about a payment you made to someone else - by a date that is ten or fifteen days away.

Most people react in one of two wrong ways: they panic and start revising old returns, or they decide a notice with no money attached cannot matter and let the date pass. Both are expensive.

This guide covers what Section 133(6) actually empowers an officer to do, the triggers that generate these notices for individual taxpayers, how to verify the notice is genuine, what non-compliance costs for AY 2026-27 (FY 2025-26), and how to draft a reply that closes the file instead of opening a bigger one.

What Section 133(6) Is

Section 133 is the department's power to call for information. Sub-section (6) is the broadest part of it: an income-tax authority may require any person - including a banking company or any officer of one - to furnish information or statements on any point or matter that is "useful for, or relevant to, any enquiry or proceeding" under the Act.

Three features of that wording matter in practice.

It is a question, not a conclusion. A 133(6) notice carries no computation, no addition to your income and no demand. Nothing has been decided about your tax liability. The officer is collecting material.

It can be issued when nothing is pending against you. The proviso to Section 133 allows the power to be used for an enquiry even where no proceeding is pending, but in that situation the notice needs the prior approval of a Principal Director / Director or Principal Commissioner / Commissioner unless it is being issued by an officer of Joint, Deputy or Assistant Director rank. This is why these notices often arrive out of nowhere, years before any assessment.

It is frequently about someone else. The person asked for information need not be the person under enquiry. If you paid Rs 3,60,000 in rent during FY 2024-25 and your landlord's return shows no rental income, the notice can come to you for the lease deed and bank statements. You are a witness in that file, not the target.

How It Differs From the Notices People Confuse It With

The practical difference is scope. A scrutiny or reassessment notice is a proceeding where you defend a position; a 133(6) notice is one where you produce a document and stop there.

What Triggers These Notices for Individuals

The department's Insight platform matches third-party reporting against what you filed. When a figure does not reconcile, a 133(6) notice is the cheapest way to ask about it. The recurring triggers are:

• Cash deposits that do not fit the income profile in your return, especially aggregates crossing Rs 10 lakh in savings accounts during a year.
• High-value transactions reported in the SFT - mutual fund purchases, property registrations, large credit card settlements, foreign remittances under the LRS. These already appear in your AIS, so a mismatch is visible without any investigation.
• Deduction claims the department is sampling, most prominently donations under Section 80GGC and 80G routed through entities later found to be issuing accommodation receipts.
• Payments you made to a person under enquiry - rent, professional fees, contract payments, a property purchase from a seller whose return is being examined.
• Crypto and VDA exchange data, where exchange-reported trade volumes do not match Schedule VDA.
• Bank or employer-level enquiries where you are simply one row in a dataset the officer pulled.

A notice is not an allegation of evasion. Very often the answer is that the money was a loan repayment, a gift from a relative, a transfer between your own accounts or an exempt receipt - facts the department has no way of knowing until you say so.

Verify the Notice Before You Reply

Phishing notices imitating the department's format are common, usually built to collect your e-filing credentials or push a "refund processing fee".

Every genuine notice, order or letter issued by the department must carry a computer-generated Document Identification Number (DIN) under CBDT Circular 19/2019. A communication issued without a DIN is treated as never having been issued at all.

Check it this way:

1. Go to the e-filing portal and open Authenticate Notice / Order Issued by ITD under the "Our Services" section - it works without logging in.
2. Enter the DIN printed on the notice along with your mobile number, and complete the OTP.
3. Separately, log in and open Pending Actions > e-Proceedings. A real 133(6) notice in your own case will almost always be listed there.

If the DIN does not authenticate and nothing appears under e-Proceedings, do not click any link in the email and do not attach documents to a reply address. Report it and move on.

What Ignoring It Costs

Section 133(6) is backed by a penalty provision. Failure to furnish information called for under Section 133 attracts a penalty under Section 272A(2) of Rs 500 for every day during which the failure continues - the rate was raised from Rs 100 a day with effect from 1 October 2024.

A three-month delay on a single notice is therefore roughly Rs 45,000, and the penalty runs independently of whether any tax was ultimately found payable.

Two points of relief are worth knowing. Section 272A(2) is covered by Section 273B, so no penalty is imposable if you prove reasonable cause - a hospitalisation, a notice served on an abandoned email ID. And it is not automatic: the authority must give you an opportunity of being heard first.

The quieter cost is worse than the penalty. An unanswered information notice is the standard precursor to a Section 148A show-cause, because the officer is left to form a view on the third-party data alone. Answering a 133(6) notice properly is the cheapest point at which the matter can end.

How to Reply

Read exactly what is asked

Notices are usually templated and ask for more than the officer needs. Extract three things: the assessment years covered, the specific transactions or accounts identified, and the documents sought. If the notice asks about FY 2023-24 only, nothing in your reply should discuss FY 2024-25.

Assemble documents that prove the nature of the money, not just its movement

A bank statement shows a credit, not what the credit was. Pair each entry with the document that characterises it:

Cash is always harder to explain than a bank transfer, which is the real reason to route anything substantial through the banking channel in the first place.

Submit on the portal, not by email

Log in and go to Pending Actions > e-Proceedings, open the proceeding, and use Submit Response. Write the substantive reply as a single covering letter PDF and attach the evidence as separate, clearly named files. Keep each attachment within the portal's size limit and compress scans rather than splitting a document across files.

Download the acknowledgement and keep it with the notice. If the notice came by post from a jurisdictional officer with no e-Proceedings entry, reply at the counter and take a receipted copy.

Structure the covering letter plainly

A workable reply has four parts: the notice reference, DIN and date; a one-line confirmation of the years and transactions covered; a numbered item-by-item response, each pointing to its annexure; and a closing line offering any further information required.

Do not argue law you were not asked about, do not attach returns for years outside the notice, and do not explain a transaction you have no document for - say the document is being obtained and give a date.

Ask for time if you need it, before the date

The portal allows an adjournment request within the proceeding. Filed before the due date and citing what you are waiting for, it is routinely allowed. Filed after the date, it is a default you are asking to be excused.

Fix a genuine omission separately

If the exercise reveals income you actually missed - interest from a closed FD, a capital gain you never reported - say so in the reply and correct the record: a revised return if the window is open, an updated return under Section 139(8A) if it is not. Voluntary correction before any addition is made is what keeps a Section 270A under-reporting penalty off the table.

Most of these notices exist because a figure in the AIS never made it into the return. Reconciling your AIS and Form 26AS against your own records at filing time is what prevents the notice - 49Tax's AI reads your AIS and Form 16 together and flags the entries that do not tie up, before the return goes out rather than two years later.

The Takeaway

Treat a Section 133(6) notice as a deadline, not a verdict. Authenticate the DIN, note the exact years and transactions, answer only those with documents that show what each receipt was, and file on the portal before the date with an acknowledgement in hand. The notice itself costs nothing. Letting the date slide costs Rs 500 a day and hands the officer the right to draw his own conclusion from data you could have explained in a page.