NRI Income Tax & Compliance

Section 148 of Income Tax Act: Notice Under Assessment or Reassessment

  • April 2, 2026
  • 7 mins
  • 13.5K Views
Section 148

Income Tax Act Section 148 permits the Income Tax Department to reopen assessments where the Assessing Officer has information suggesting that income chargeable to tax has escaped assessment in a previously filed Income Tax Return (ITR). For a taxpayer, a notice under Section 148 signals that the Assessing Officer intends to reassess the taxpayer’s Income Tax Return.

In this blog, we will explore Section 148 of the Income Tax Act in detail and outline the importance of staying tax compliant.

What is Section 148 of the Income Tax Act?

According to this section, the Assessing Officer has the authority to send a legal notice to a taxpayer where there is information indicating that income has escaped proper assessment. This means the officer believes the taxpayer may not have fully disclosed income or may have misreported it, and authorities can commence reassessment proceedings under this section subject to prescribed procedures.

Key Aspects Included In This Section

Reassessment Condition: Income tax reassessment under Section 148 of a previously filed ITR can only be initiated where the Assessing Officer possesses information suggesting income has escaped assessment, not merely suspicion.

Section 148A: This section acts as a safeguard. Generally, before issuing a Section 148 notice, the Assessing Officer conducts an inquiry, provides the taxpayer an opportunity of being heard, and considers the reply before deciding whether notice under Section 148 should be issued (except in certain specified cases such as search-related matters).

Legal Compliance: The taxpayer should respond promptly to a Section 148 notice within the time specified in the notice to avoid further legal complications or penalties.

What Does the Section 148 Income Tax Act Notice Say?

The notice typically highlights the alleged discrepancy in reported income. It specifies the relevant Assessment Year (AY), outlines the basis on which reassessment proceedings are initiated, and indicates areas where income may have escaped assessment.

For instance, a notice may seek clarification regarding significant bank deposits, high-value transactions, or third-party information mismatches.

The notice also specifies documents required and the deadline for response.

What are the Provisions for the Issuance of Section 148 Notice?

To issue a notice under Section 148, the following structured process generally applies:

  1. The Assessing Officer usually conducts an inquiry under Section 148A and provides the taxpayer an opportunity to respond.
  2. A notice is issued only after considering available information and obtaining required approvals.
  3. The taxpayer must respond by filing the required return or explanation addressing discrepancies.

Reasons to Issue a Notice Under Section 148

Common reasons include:

Not Disclosing Taxable Income: A notice may be issued where a taxpayer fails to disclose income in the ITR. For example, undisclosed freelance income or other earnings could trigger reassessment.

Suppression of Financial Transactions: Failure to report significant transactions, such as unrecorded cash sales, may lead authorities to reassess income.

Unexplained High-Value Transactions or Cash Deposits: Large deposits inconsistent with reported income may lead authorities to suspect income escaping assessment.

For example, sudden significant bank deposits without a clear basis or justification would trigger a notice under Section 148 by the assessing officer.

Information from Other Government Agencies: Data received from financial institutions or government agencies indicating discrepancies can trigger reassessment proceedings.

Timeline To Issue a Notice Under Section 148

The reassessment time limits (post Finance Act 2021 reforms) are:

Escaped Income Time Limit
Up to ₹50 lakh Within 3 years from end of relevant AY
Above ₹50 lakh (represented in asset/expenditure/entry) Beyond 3 years and up to 10 years
Beyond 10 years Notice generally cannot be issued

How to Reply to The Income Tax Notice Under Section 148

The key things to keep in mind are that the taxpayer must not take this notice lightly and the response should be made within the specified timeline. Moreover, please follow the pointers below while replying to the notice:

  • Carefully review the reasons provided for reopening the assessment. You may request a copy of the recorded reasons or information relied upon if not already provided.
  • Respond within the deadline specified in the notice (commonly between about 7–30 days depending on the case).
  • If a return was already filed, you may be required to confirm or re-file it in response to the notice.
  • Ensure complete and accurate disclosure while responding.
  • If you believe the notice is invalid, you may challenge it legally, including through writ proceedings where appropriate.

If a court rules in your favour, reassessment proceedings may be halted; otherwise, they continue as per law.

What Will Happen If You Don't Respond to the Notice?

If a taxpayer does not respond to the notice within the timeframe, the assessing officer has the right to carry out the reassessment process using the information available to them. They can make their judgment and evaluate your ITR based on their understanding and the available information.

However, suppose the taxpayer disagrees with the result. In that case, they have an option to file an appeal with any of the Income Tax Appellate Tribunals and the Commissioner of Income Tax (Appeals).

Who has the Authority to Issue a Notice Under Section 148?

Income Tax Act Section 151(1) has the provision for the issue of the notice.

  • No assessing officer is liable to issue a notice under section 148 of the Act unless instructed by the Principal Commissioner, the Chief Commissioner, the Principal Chief Commissioner, or the Commissioner to do so.
  • The assessing officer can issue no Income Tax Notice under section 148 where the assessing officer is below the rank of a joint commissioner, unless the Joint Commissioner is satisfied with the reasons given by the AO. If the Joint Commissioner finds the evidence sufficient to issue a notice, a below-rank AO can issue it.

What are the Rights and Duties of the Assessee After Receiving the Notice?

  • The Assessee must do their duty of filing the tax return for the relevant assessment years because a notice of Income escaping has been issued.
  • Once the return has been filed, the assessee has the right to request a copy of the notice, which highlights the reason for which the assessing officer has issued the notice.
  • If the assesses find the reason provided by the AO to be baseless and unjustified, then they can file the objection notice.
  • For the assessee, it is important to provide all the valid information; however, they can raise questions and objections to the lawfulness of the notice.
  • If the Assessing officer dismisses the claims made by the assessee, then the assessee can retain its right and request the provision of reasons for the dismissal of the claims.
  • Assessee also has the right to file a write petition with the high court challenging the validity and the basis on which the notice has been issued under section 148. This can be done before the conclusion of the assessment and re-assessment.

Assessment Case Reopening

In the Union budget 2021, the decision has been made to shorten he time limit to income tax assessment cases. Previously, the period was six years, which has now been reduced to three years; however, in cases where the assessed concealed income exceeds Rs 50 Lakh, the assessment period can be extended up to 10 years due to significant tax evasion.

Need Expert Help With Revised Return?

Who wants a legal notice waiting for them in the mailbox because the heart does skip a beat or two while any such thing happens. However, section 148 of the Income Tax Act plays a vital role in ensuring that the taxpayer's income is assessed correctly. If you receive a notice under this section, then respond to it immediately and with due diligence.

Although it is advised to ask an expert for guidance in such legal matters, as they have the thorough knowledge of the Indian Income Tax Act, and can help you with the best financial advice. Hence, Savetaxs steps in. We have been assisting NRI taxpayers in resolving their complex legal issues and filing their ITR with utmost precision, thereby eliminating the risk of notices or enquiries.

For years, we have supported NRIs with taxation matters involving Indian and international compliance. Connect with us if you need assistance navigating tax notices or filings.

Note: This guide is for information purposes only. The views expressed in this guide are personal and do not constitute the views of Savetaxs. Savetaxs or the author will not be responsible for any direct or indirect loss incurred by the reader for taking any decision based on the information or the contents. It is advisable to consult either a CA, CS, CPA or a professional tax expert from the Savetaxs team, as they are familiar with the current regulations and help you make accurate decisions and maintain accuracy throughout the whole process.

Manish Prajapat
Manish Prajapat(Tax Expert)

Mr Manish is a financial professional with over 10 years of experience in strategic financial planning, performance analysis, and compliance across different sectors, including Agriculture, Pharma, Manufacturing, & Oil and Gas. Mr Prajapati has a knack for managing financial accounts, driving business growth by optimizing cost efficiency and regulatory compliance. Additionally, he has expertise in developing financial models, preparing detailed cash flow statements, and closing the balance sheets.

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Frequently Asked Questions

This notice is issued by the income tax department when an assessing officer believes that a source of income or two has been escaped from assessment in a previously filed ITR of a taxpayer.

Section 148 is a remedy in which the taxpayer is given a chance to explain the whole case before the legal notice is issued.

For three years, and if the underreported income exceeds INR 50 lakhs, the case can be opened for up to ten years.

Only an assessing officer who is either equal to or above the rank of a deputy or assistant commissioner can issue a notice, and after three years, they need approval from the higher authority.

The taxpayer must respond within the timeframe, which is usually 30 days after receiving the notice.