Understanding Types of Demand and Notices Under Income Tax Regulations
- knp gst
- Nov 29, 2025
- 4 min read
Income tax laws require taxpayers to comply with various rules, including responding to demands and notices issued by tax authorities. These communications can sometimes cause confusion or anxiety, especially when the terms and procedures are not clear. Understanding the different types of demand and notices under income tax regulations helps taxpayers respond appropriately and avoid penalties.
This article explains the common types of demands and notices issued by income tax departments, their purposes, and how taxpayers should handle them. Clear examples and practical tips will guide you through the process.

What Are Income Tax Demands and Notices?
Income tax authorities issue demands and notices to communicate with taxpayers about their tax liabilities, compliance status, or information requests. These documents serve different purposes:
Demand: A formal request for payment of tax dues, penalties, or interest.
Notice: A communication that may seek information, clarification, or inform about proceedings.
Both demands and notices are legal documents and require timely attention. Ignoring them can lead to penalties, interest, or legal action.
Common Types of Income Tax Demands
Demands arise when the tax department identifies a discrepancy or unpaid tax. Here are the main types:
1. Demand Under Section 156
This is the most common demand notice. It is issued when the tax department finds that a taxpayer owes additional tax after processing the return or assessment. The notice specifies the amount payable, including interest and penalties if applicable.
Example: If you filed your return declaring income of ₹10 lakh but the department finds unreported income of ₹2 lakh, they will issue a demand under Section 156 for the tax on ₹2 lakh plus interest.
2. Demand Under Section 143(1)(a)
This demand arises from the processing of the income tax return. If the department finds a mismatch or short payment, it issues a demand notice. This is usually the first demand a taxpayer receives after filing.
3. Demand Under Section 245
This demand is related to the adjustment of refunds against outstanding tax dues. If you have a refund due but also owe tax from previous years, the department may adjust the refund and issue a demand for the balance.
4. Demand Under Section 221
Issued when the tax officer completes an assessment and finds additional tax payable. This demand is based on detailed scrutiny and may include penalties.
Different Types of Income Tax Notices
Notices serve various purposes, from seeking information to initiating assessments. Here are the key types:
1. Notice Under Section 139(9)
This notice is issued when the filed return is defective or incomplete. The taxpayer must correct the errors within the specified time to avoid the return being treated as invalid.
2. Notice Under Section 142(1)
Issued when the tax officer requires additional information or documents to verify the return or conduct an assessment. The notice will specify what is needed and the deadline for submission.
3. Notice Under Section 143(2)
This notice initiates a detailed scrutiny assessment. It means the tax officer will examine the return closely and may ask for explanations or evidence.
4. Notice Under Section 148
Issued when the department believes income has escaped assessment. This notice reopens the assessment for a previous year and requires the taxpayer to file a return or respond.
5. Notice Under Section 156
While primarily a demand notice, it also serves as a notice to pay the specified tax amount.

How to Respond to Income Tax Demands and Notices
Responding promptly and correctly is crucial. Here are steps to follow:
1. Verify the Notice or Demand
Check the details carefully:
Verify your name, PAN, and assessment year.
Confirm the tax amount demanded.
Understand the reason for the notice or demand.
2. Cross-check Your Records
Compare the notice details with your filed return, bank statements, and other financial documents. Sometimes, demands arise due to mismatches or errors in reporting.
3. Respond Within the Deadline
Notices specify deadlines. Missing these can lead to penalties or legal action. If you need more time, you can request an extension, but this must be done before the deadline.
4. Pay the Demand if Valid
If the demand is correct, pay the amount promptly to avoid interest or penalties. Payment can usually be made online through the income tax department’s portal.
5. File a Rectification or Appeal if Needed
If you believe the demand or notice is incorrect:
File a rectification request under Section 154 to correct mistakes.
Appeal to the Commissioner of Income Tax (Appeals) within the prescribed time.
6. Keep Records of All Communications
Maintain copies of notices, responses, and payment receipts for future reference.
Practical Examples of Income Tax Demands and Notices
Example 1: Demand for Tax on Unreported Income
Mr. Sharma filed his return declaring ₹8 lakh income. The department found ₹1 lakh interest income not reported. They issued a demand under Section 156 for the tax on ₹1 lakh plus interest. Mr. Sharma verified the notice, accepted the demand, and paid the amount online within 30 days.
Example 2: Notice for Additional Information
Ms. Gupta received a notice under Section 142(1) asking for bank statements and proof of investments. She gathered the documents and submitted them before the deadline, avoiding further scrutiny.
Example 3: Reassessment Notice
Mr. Verma got a notice under Section 148 for the assessment year 2018-19. The department suspected income was escaped. He filed a revised return and provided explanations. The reassessment was completed without additional demand.

Tips to Avoid Income Tax Demands and Notices
File accurate and complete returns.
Report all income sources, including interest and capital gains.
Keep proper records and proofs of investments and expenses.
Respond promptly to any communication from the tax department.
Use professional help if your tax situation is complex.
Final Thoughts on Income Tax Demands and Notices
Understanding the types of demands and notices under income tax regulations helps taxpayers act confidently and avoid unnecessary stress. Always verify the authenticity of notices, respond within deadlines, and seek professional advice when needed. Staying informed and organized reduces the risk of penalties and legal complications.





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