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“headline”: “Income Tax Notices: All Sections Explained”,
“description”: “9 income tax notices explained: Section 131, 132, 133A, 148, 154, 156, and 245. Compare triggers, deadlines, and consequences in one quick-reference guide.”,
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“datePublished”: “2026-09-23”,
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“name”: “What is the difference between a Section 131 summons and a Section 133(6) information notice?”,
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“text”: “A Section 131 summons requires the recipient to personally attend before the Assessing Officer on a specified date, with the option to produce documents as well. It is backed by the powers of a civil court and non-compliance attracts a Rs 10,000 penalty under Section 272A. A Section 133(6) notice, by contrast, only requires the submission of information or documents in writing; the recipient does not need to appear in person. Section 133(6) is typically used to gather information from third parties such as banks, employers, buyers, or registrars about transactions with the assessee.”
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“name”: “Can a Section 148 reassessment notice be issued without first issuing a Section 148A notice?”,
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“text”: “No – for assessments where income is alleged to have escaped assessment on or after 1 April 2021, the Finance Act 2021 made Section 148A a mandatory prerequisite. Before issuing a Section 148 reassessment notice, the AO must: (a) conduct an inquiry under Section 148A(a); (b) provide the assessee with an opportunity to be heard under Section 148A(b); and (c) pass an order under Section 148A(d). Only after this order can the Section 148 notice be issued. The Supreme Court in Union of India v. Ashish Agarwal (2022) confirmed this sequence is mandatory.”
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“text”: “File an objection within 30 days of the Section 245 intimation showing that the underlying demand is disputed – under appeal, or a rectification application is pending, or the demand itself is incorrect. If the demand is stayed by the CIT(A) or ITAT, the AO cannot proceed with the adjustment.”
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“name”: “What errors qualify for rectification under Section 154 and what is the time limit?”,
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“text”: “Section 154 allows rectification of a mistake apparent from the record: arithmetic errors, wrong tax rate, missed TDS credit, omitted Section 87A rebate, and interest calculation errors. It does not cover debatable legal questions. The taxpayer can apply within 4 years of the end of the financial year in which the order was passed. The AO must dispose of the application within 6 months of receipt.”
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“text”: “Yes. Pay the undisputed portion and simultaneously file a Section 246A appeal against the disputed portion with a stay application. Under CBDT guidelines, paying 20% of the disputed demand and filing a pending appeal is the standard basis for a stay. The AO must pass a speaking order on the stay application and cannot proceed with recovery while a valid stay is in force.”
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Income Tax Notices: All Sections Explained
Income tax notices arrive through the e-proceedings portal and can be hard to tell apart. This guide maps all 9 notice types — from the least intrusive written information request to the full search and seizure warrant — grouping them by what the department is trying to do and linking to a detailed guide for each one. If you have received a notice, start by reading the section number, find the matching card below, and follow the link.
- What Are the 9 Types of Income Tax Notices and How Are They Classified?
- Which Notices Are Used for Inquiry, Survey, and Search and When Are They Issued?
- Which Notices Are Used for Assessment and Reassessment and What Do They Trigger?
- Which Notices Are Issued After Assessment Is Complete and What Remedies Exist?
- How Do Response Deadlines Compare Across All 9 Income Tax Notices?
- What Happens If You Ignore or Miss Responding to an Income Tax Notice?
- Which Notice Should You Respond to First If You Receive Multiple Notices?
What Are the 9 Types of Income Tax Notices and How Are They Classified?
All income tax notices fall into 3 categories based on the stage of the department’s action: Inquiry & Investigation (the department is gathering information), Assessment & Reassessment (the department is re-examining a past return), and Post-Assessment (the assessment is done and the notice concerns its result or a correction to it). The table below shows the classification at a glance.
| Section | Notice Name | Category | Department’s Goal | Requires Personal Attendance? |
|---|---|---|---|---|
| 131 | Summons | Inquiry | Get information on oath in person | Yes — compulsory |
| 133(6) | Information Notice | Inquiry | Obtain documents from any person in writing | No — written only |
| 133A | Survey | Inquiry | Inspect business premises during business hours | No notice — unannounced visit |
| 132 | Search & Seizure | Enforcement | Seize undisclosed cash, jewellery, books | No notice — warrant execution |
| 148A | Preliminary Inquiry | Reassessment | Hear the assessee before reopening | Optional — written response |
| 148 | Reassessment Notice | Reassessment | Re-open a past year and re-assess income | No — file return online |
| 154 | Rectification Notice | Post-Assessment | Correct a mistake in an existing order | No — written response |
| 156 | Notice of Demand | Post-Assessment | Recover tax, interest, or penalty due | No — pay or appeal |
| 245 | Refund Adjustment | Post-Assessment | Adjust a refund against a pending demand | No — written objection |
Key Principle: Category Determines Your Response Strategy
- Inquiry & Investigation: Cooperate fully with accurate information; do not ignore or delay; engage a CA before any statement on oath (Sections 131, 132(4)). The department is building a case — what you say now shapes the assessment later.
- Assessment & Reassessment: Respond within the strict deadline; challenge the legal validity of the notice if the Section 148A process was skipped; file a complete return and gather all supporting documents for the year being reopened.
- Post-Assessment: Check the demand for correctness before paying; file an appeal and stay application if disputing; do not let the 30-day payment window lapse without either paying or obtaining a stay.
Which Notices Are Used for Inquiry, Survey, and Search and When Are They Issued?
The 4 inquiry and enforcement notices escalate in severity — from a written information request to a full search with physical seizure. The department typically moves up this ladder when a lower-level action fails to produce the required cooperation or information.
The Inquiry Escalation Ladder
These 4 notices represent an escalation path. The department typically begins with a Section 133(6) written information request to banks or third parties. If the assessee fails to cooperate with a Section 131 summons, or if the survey reveals undisclosed assets, the matter is referred to the Investigation Wing for a Section 132 search.
Which Notices Are Used for Assessment and Reassessment and What Do They Trigger?
Which Notices Are Issued After Assessment Is Complete and What Remedies Exist?
How Do Response Deadlines Compare Across All 9 Income Tax Notices?
| Section | Notice Type | Standard Deadline | Consequence of Non-Response |
|---|---|---|---|
| 131 | Summons | Date specified | Rs 10,000 penalty per default (Sec. 272A); prosecution under Sec. 276D |
| 133(6) | Information Notice | 30 days (typical) | Rs 10,000 penalty per default (Sec. 272A); AO proceeds on available information |
| 133A | Survey | During survey | Section 275A: obstruction attracts prosecution up to 2 years RI |
| 132 | Search & Seizure | Immediate | Section 271AAB 60% penalty; Section 276C prosecution for wilful evasion |
| 148A | Preliminary Inquiry | 15 days | AO passes Section 148A(d) order without hearing; Section 148 notice follows |
| 148 | Reassessment Notice | 30 days (file return) | AO frames best-judgment assessment under Section 144; higher additions likely |
| 154 | Rectification Notice | 30 days | AO passes rectification order without assessee input; enhanced demand may stand |
| 156 | Notice of Demand | 30 days | 1% monthly interest under Section 220(2); recovery proceedings; TRO attachment |
| 245 | Refund Adjustment | 30 days | Refund adjusted automatically against the demand; recovery of adjusted refund is difficult |
What Happens If You Ignore or Miss Responding to an Income Tax Notice?
Non-Response Has Different Consequences at Each Stage
- Inquiry stage (Sections 131, 133(6)): Each default on a Section 131 summons attracts a separate Rs 10,000 penalty. For Section 133(6), the AO proceeds on the best available information and frames additions for unexplained transactions.
- Survey (Section 133A): Obstruction of a survey officer is a cognizable offence under Section 275A, punishable with up to 2 years of rigorous imprisonment.
- Search (Section 132): Deliberate concealment during a search compounds the penalty from 30% to 60% under Section 271AAB and opens the door to prosecution under Section 276C for wilful tax evasion (3 months to 7 years rigorous imprisonment).
- Reassessment (Sections 148A, 148): Missing the Section 148A deadline means the AO passes the reopening order without hearing the assessee. Missing the Section 148 return-filing deadline results in a best-judgment assessment under Section 144.
- Post-assessment (Sections 154, 156, 245): A missed Section 156 payment without a stay triggers 1% monthly interest under Section 220(2) and can lead to the TRO attaching bank accounts and immovable property. A missed Section 245 objection window means the refund is adjusted and recovery becomes nearly impossible.
Which Notice Should You Respond to First If You Receive Multiple Notices?
When multiple notices arrive simultaneously, prioritize by consequence severity and deadline tightness.
Common Questions
A Section 131 summons requires personal attendance on oath before the officer; a Section 133(6) notice requires only a written response and production of documents. The summons is backed by civil court powers. A Section 133(6) notice can also be sent to third parties (banks, employers) who had no involvement in any proceeding against the assessee.
No — for reassessments on or after 1 April 2021, Section 148A is a mandatory prerequisite. The AO must show the information to the assessee, hear a response, and pass an order under Section 148A(d) before issuing the Section 148 notice. The Supreme Court in Union of India v. Ashish Agarwal (2022) confirmed this sequence is mandatory.
File an objection within 30 days showing that the underlying demand is disputed (under appeal, subject of a rectification application, or already stayed). If the demand is on appeal, submit the appeal acknowledgment and any stay order. The AO cannot adjust a refund against a demand that is validly stayed.
Section 154 covers mistakes apparent from the record: arithmetic errors, wrong tax rate, missed TDS credit, omitted Section 87A rebate, and interest calculation errors. It does not cover debatable legal questions. The taxpayer can apply within 4 years from the end of the financial year in which the order was passed. The AO must dispose within 6 months of receipt.
Yes. Pay the undisputed portion and simultaneously file a Section 246A appeal against the disputed portion with a stay application. Under CBDT guidelines, paying 20% of the disputed demand and filing a pending appeal is the standard basis for a stay. The AO cannot proceed with recovery while a valid stay is in force.
For expert help with any income tax notice, contact the Tradeviser team. Individual notice guides: Section 131 • Section 132 • Section 133(6) • Section 133A • Section 148A • Section 148 • Section 154 • Section 156