Income Tax Notice Types Explained: Section 143(1), 139(9), 142(1), 143(2), 148, 245 and More – Complete Taxpayer Guide for AY 2026-27
Income Tax Notice Types Explained: Section 143(1), 139(9), 142(1), 143(2), 148, 245 and More – Complete Taxpayer Guide for AY 2026-27
Introduction
Receiving an Income Tax Notice can be stressful for many taxpayers. Whether you are a salaried employee, pensioner, freelancer, business owner, or professional, an email or message from the Income Tax Department often creates anxiety.
However, it is important to understand that not every Income Tax Notice indicates a penalty, tax evasion issue, or legal action. In many cases, notices are issued for routine verification, information matching, return processing, or correction of errors.
With the increasing use of AIS (Annual Information Statement), Form 26AS, TDS reporting, GST data, and financial transaction tracking, the Income Tax Department can easily identify mismatches between the information reported by taxpayers and data available in its records.
This article explains the most common Income Tax Notices including Sections 143(1), 139(9), 142(1), 143(2), 148, 245, and 156 in simple language, along with the reasons for receiving them and the actions taxpayers should take.
What is an Income Tax Notice?
An Income Tax Notice is an official communication sent by the Income Tax Department when it requires clarification, additional information, correction, verification, or tax recovery from a taxpayer.
A notice may be issued due to:
Mismatch in income details
Incorrect ITR filing
Missing disclosures
High-value transactions
Tax demand generation
Refund adjustment
Defective return filing
Reassessment of income
Ignoring a notice can lead to penalties, interest, additional tax liabilities, or legal consequences. Therefore, every notice should be carefully reviewed and responded to within the prescribed time limit.
1. Section 143(1) Notice – Intimation After Processing
Section 143(1) is the most commonly issued Income Tax communication.
After your Income Tax Return is processed, the department sends an intimation showing whether your return has been accepted as filed or whether any discrepancies have been identified.
Possible Outcomes Under Section 143(1)
Return Accepted
The department agrees with the information provided in your return.
Refund Determined
A tax refund is approved and processed.
Tax Demand Raised
Additional tax becomes payable due to mismatches or recalculations.
Adjustments Made
Certain deductions, exemptions, or income figures may have been modified.
Example
Suppose you reported FD interest of ₹20,000 in your ITR.
However, the bank reported ₹35,000 interest in AIS and Form 26AS.
The department may recalculate your tax liability and issue an intimation showing additional tax payable.
What Should You Do?
Download and review the intimation.
Compare the figures with your return.
Verify any tax demand raised.
File a rectification request if required.
2. Section 139(9) Notice – Defective Return
A notice under Section 139(9) is issued when the Income Tax Department considers your return defective or incomplete.
This is one of the most common notices received by taxpayers who choose the wrong ITR form or fail to provide mandatory information.
Common Reasons for Section 139(9) Notice
Incorrect ITR Form
Using ITR-1 instead of ITR-3 or ITR-4.
Missing Financial Statements
Balance Sheet or Profit & Loss details not reported.
Incomplete Information
Mandatory schedules left blank.
Calculation Errors
Incorrect computation of taxable income.
Missing Business Details
Turnover or professional receipts not properly disclosed.
Example
A taxpayer earning business income files ITR-1, which is meant primarily for salary and pension income.
The department may classify the return as defective and issue a Section 139(9) notice.
Action Required
Read the notice carefully.
Identify the defect mentioned.
Submit the corrected information within the prescribed timeline.
Failure to respond may result in the return being treated as invalid.
3. Section 142(1) Notice – Inquiry and Information Request
A Section 142(1) notice is issued when the department requires additional information to assess your tax liability correctly.
This notice may be issued before or during assessment proceedings.
Information Commonly Requested
Bank statements
Investment proofs
Books of accounts
Property transaction details
Loan documents
Business records
Income supporting documents
What Should You Do?
Gather all requested documents.
Upload accurate information through the Income Tax Portal.
Respond before the deadline.
Timely compliance can help avoid further complications.
4. Section 143(2) Notice – Scrutiny Assessment
A Section 143(2) notice is issued when the department selects your return for detailed scrutiny.
The purpose is to verify whether the income declared and deductions claimed are accurate.
Common Reasons for Scrutiny Selection
High-Value Transactions
Large investments, deposits, or purchases.
Unusual Deductions
Excessive deductions compared to income levels.
Significant Refund Claims
Large refunds requested.
Data Mismatch
Differences between AIS, TDS records, GST data, and ITR.
Example
A taxpayer reports income of ₹8 lakh but claims deductions exceeding ₹5 lakh.
The department may seek supporting evidence through scrutiny proceedings.
Action Required
Maintain proper documentation.
Respond accurately to departmental queries.
Seek professional assistance if necessary.
5. Section 148 Notice – Income Escaping Assessment
A notice under Section 148 is issued when the department believes that income chargeable to tax has escaped assessment.
This is generally considered one of the more serious notices because it involves reassessment of previously filed returns.
Situations Leading to Section 148 Notice
Property Sale Not Reported
Capital gains omitted from the return.
Undisclosed Investments
Income generated from investments not reported.
Foreign Assets or Income
Failure to disclose foreign income or assets.
Large Cash Transactions
Significant cash deposits detected.
AIS Mismatch
Financial transactions reported by third parties but missing from the ITR.
Example
You sell a property and earn taxable capital gains but fail to disclose the transaction in your return.
The department may initiate reassessment proceedings under Section 148.
What Should You Do?
Carefully review the notice.
Understand the reasons provided.
Collect supporting evidence.
Submit an appropriate response.
Consult a tax professional if required.
6. Section 245 Notice – Refund Adjustment Notice
Many taxpayers expect a refund but instead receive a notice under Section 245.
This notice informs the taxpayer that the department proposes to adjust the current refund against an outstanding tax demand from a previous year.
Why is Section 245 Issued?
The department's records indicate that:
Tax demand remains unpaid.
Previous assessments created outstanding dues.
Refund is available for adjustment.
What Should You Do?
If the Demand is Correct
Accept the adjustment request.
If the Demand is Incorrect
Submit an online objection along with supporting documents.
Ignoring the notice may result in automatic adjustment of the refund.
7. Section 156 Notice – Demand Notice
A demand notice under Section 156 is issued when tax, interest, or penalty becomes payable after assessment.
What Does the Notice Contain?
Tax amount payable
Interest liability
Penalty amount, if applicable
Due date for payment
Action Required
Verify the demand.
Make payment if correct.
File a response if you disagree.
How to Respond to an Income Tax Notice Online
Follow these simple steps:
Step 1
Log in to the Income Tax Portal.
Step 2
Navigate to "Pending Actions."
Step 3
Open the "e-Proceedings" or "Notices" section.
Step 4
Download and review the notice.
Step 5
Upload the required documents.
Step 6
Submit your response and save the acknowledgement.
Mistakes to Avoid After Receiving a Notice
❌ Ignoring the notice
❌ Missing the response deadline
❌ Uploading incorrect documents
❌ Providing incomplete information
❌ Responding without verification
❌ Assuming every notice means a penalty
Best Practices to Prevent Income Tax Notices
To minimize the chances of receiving notices:
Reconcile AIS, Form 26AS, and TDS data before filing.
Report all income sources accurately.
Select the correct ITR form.
Maintain proper documentation.
Disclose capital gains and high-value transactions.
Verify deductions before claiming them.
Regularly monitor notices on the Income Tax Portal.
Conclusion
Receiving an Income Tax Notice is not always a reason for concern. Most notices are issued for verification, correction, information requests, or routine processing activities.
Understanding the purpose of notices such as Sections 143(1), 139(9), 142(1), 143(2), 148, 245, and 156 helps taxpayers respond appropriately and avoid unnecessary complications.
The key is to remain calm, review the notice carefully, provide accurate information, and respond within the prescribed time limit. Timely compliance can help resolve most tax matters smoothly and efficiently.
Frequently Asked Questions (FAQs)
Q1. Does every Income Tax Notice mean a penalty?
No. Many notices are issued simply for verification or information purposes.
Q2. Is a Section 143(1) notice serious?
Generally, it is an intimation after processing and may not indicate any issue.
Q3. Why do taxpayers receive a Section 139(9) notice?
It is issued when the return is defective or incomplete.
Q4. What is the purpose of a Section 245 notice?
It informs taxpayers that a refund may be adjusted against an outstanding tax demand.
Q5. Can I respond to Income Tax Notices online?
Yes. Most notices can be responded to through the Income Tax Portal.
Q6. What happens if I ignore an Income Tax Notice?
Ignoring a notice may lead to penalties, interest, demand recovery proceedings, or further legal action.
Q7. Can a tax professional help with notice responses?
Yes. Professional assistance is recommended for scrutiny assessments, reassessment notices, or complex tax matters.
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