How to Respond to an Income Tax Notice Under Section 148 (Reassessment)

Last Updated on July 27, 2026

The Section 148 notices are deemed serious since they are capable of reopening previous tax proceedings and triggering the assessee’s response from the beginning. According to the Income Tax Act, a Section 148 notice can be issued only after compliance with all the provisions of the law and the assessee’s furnishing of the required return within the prescribed time.

This blog post is meant for taxpayers and businesses seeking an adequate understanding of what a Section 148 notice is and how to respond to it while considering the documents and steps associated with such response. The blog focuses on practical compliance, common mistakes, and actions after the notice is issued.

What is a Section 148 Reassessment Notice?

The term Section 148 refers to the section of the Income Tax Act that relates to the issuance of reassessment notices. According to the Income Tax Department’s official website, prior to issuing an assessment/re-assessment/re-computation order pursuant to the provisions of Section 147, the Assessing Officer has to issue a notice mandating the taxpayer to file a return for the applicable assessment year.

It also mentions in this connection that the notice is subject to the provisions of Section 148A and can only be issued if there is information indicating that income that is subject to tax has escaped assessment, thus requiring prior approval of the prescribed authority.

Section 148A vs Section 148

Following the Finance Act 2021 and the Supreme Court’s landmark judgment in Ashish Agarwal vs UOI (2022), the reassessment process now has two distinct stages:

Stage	Provision	What Happens	Timeline
Stage 1	Section 148A(b)	Assessing Officer issues a show-cause notice — “why should reassessment not be initiated”	Taxpayer gets a minimum of 7 days to respond (extendable to 30 days)
Stage 2	Section 148A(d)	AO passes order after considering your response — either drops proceedings or authorises Section 148 notice	AO must pass order within 1 month of receiving your reply
Stage 3	Section 148	Actual reassessment notice issued requiring fresh ITR filing	Only after Stage 2 order authorising it

Note: If you receive a notice on the e-filing portal, check carefully whether it’s a Section 148A(b) notice (early stage, before reassessment is authorised) or a Section 148 notice (actual reassessment notice). Your response rights and strategy differ significantly at each stage. Many taxpayers mistake a 148A notice for the final 148 notice and respond incorrectly. Respond to your Section 148 notice before the deadline ends.

Why is a Section 148 Notice Important for Indian Businesses?

The importance of this notice is that it can resume or reopen tax scrutiny of a previous year and lead to reassessment, additional taxes, interest, or any other proceedings if the taxpayers respond weakly. The legislation links the notice specifically to the escaped income and assessments under Section 147.

From a business perspective, it can have consequences in terms of cash flow, bookkeeping trust, and tax risk management, and, consequently, the response should be dealt with as formal compliance.

Who Receives an Income Tax Notice Under Section 148?

• Any taxpayer whose earnings are thought to have avoided taxation can receive a notice under Section 148. The legislation permits the taxpayer to be notified for the relevant tax year and asked to file a return.
• Companies, partnerships, LLPs, and businesses can obtain such notifications based on the particulars of the situation.

E-commerce sellers with GST-ITR turnover mismatches frequently receive Section 148A/148 notices; our guide on ITR filing for e-commerce sellers covers how to align both filings.

What are the conditions for Receipt of Section 148 Notice?

Before serving notice under Section 148, the tax authorities had to collect data indicating the presence of income that was not reported to the authorities. It is stated on the Income Tax Department’s website that to issue the notice, the concerned tax authority must seek prior authorisation.

The taxpayer should be ready to furnish necessary returns and records regarding the relevant year.

When Can You Challenge a Section 148 Notice?

A Section 148 notice is not automatically valid; it can be successfully challenged on these grounds:

Challenge Ground	Legal Basis	When to Raise
Notice issued after time limit	Limitation under Section 149	Before filing return in response
No information suggesting escape	Section 148 requires “information” per CBDT	At Section 148A(b) stage
Prior approval not obtained	Mandatory under Section 148	At Section 148A(b) stage
Wrong assessment year mentioned	Jurisdictional error	Immediately upon receipt
Notice issued to wrong PAN	Administrative error	Immediately upon receipt
Section 148A procedure not followed	Ashish Agarwal judgment, 2022	Before complying with Section 148
Income already assessed — no “escape”	Double jeopardy argument	At assessment stage

Important: Challenging the validity of the notice doesn’t mean you should ignore it. The safest approach is to respond and simultaneously raise jurisdictional/limitation objections within your response; courts have held that mere response doesn’t constitute waiver of the right to challenge the notice’s validity.

Time Limits for Issuing Section 148 Notice

Under the current law (post Finance Act 2021), the time limits for issuing a Section 148 notice are:

Escaped Income Amount	Time Limit	Additional Condition
Up to ₹50 lakh	3 years from end of relevant assessment year	Information suggesting escape required
Above ₹50 lakh	10 years from end of relevant assessment year	Prior approval of Principal Chief Commissioner required
Survey cases (Section 133A)	10 years	Regardless of amount
Search cases (Section 132)	10 years	Special provisions apply

Example: For AY 2020-21, the 3-year window closes on March 31, 2024 (3 years from end of AY 2020-21 = end of March 31, 2024). If you receive a 148A notice after this date for escaped income below ₹50 lakh, it may be time-barred and can be challenged.

First step on receiving any reassessment notice: Calculate whether the notice is within the applicable time limit. A time-barred notice can be challenged in court; this is one of the most common grounds for successfully quashing Section 148 notices.

Documents Required for Section 148 Reassessment Reply

Some of the most important papers that need to be submitted for a Section 148 response include the following:

• The acknowledgement of the notice along with the copy of the notice.
• The applicable income tax return for the financial year in question.
• The financial reports, trial balance, and ledger.
• The bank statements along with the supporting vouchers.
• Form 26AS or the annual information statement (AIS) and tax information statement (TIS) if necessary.
• Notes for explaining the disputed items.
• Power of the contracts, invoices, and reports.
• If this is a matter pertaining to a commercial transaction, then it is necessary to produce income evidence, expenses, and end-of-period reconciliation. Proper documentation also means a better response.

AIS/Form 26AS Reconciliation

Before responding to any Section 148 notice, download and review:

Annual Information Statement (AIS) on the income tax portal; this shows every transaction reported to the department, including:

• Bank interest (reported by banks)
• Property purchase/sale (reported by registrars)
• Mutual fund transactions
• Share/securities transactions
• GST turnover (imported from GSTN)
• Foreign remittances received
• High-value cash deposits

Compare AIS data against your filed ITR for the relevant assessment year:

• Transactions appearing in AIS but not in your ITR → likely the source of the notice
• Transactions appearing in your ITR but not in AIS → not a concern for this notice
• Discrepancies between AIS figures and your records → explain with supporting documents

The AIS is now the primary tool the department uses to identify escaped income, and it’s the same tool you should use to understand exactly what triggered the notice before you respond.

If the Section 148 notice relates to undisclosed capital gains, our guide on capital gains tax on shares in India covers the correct tax treatment and disclosure requirements.

Step-by-Step Process to Respond to a Section 148 Notice

1. Go through the notice comprehensively and verify that the assessment year, PAN, as well as the issue singled out in the notice, are correct. The reply to the notice should be submitted within the time frame given in the notice since the Act defines the timeline for the submission of the return.
2. You should assess whether the notice relates to the Section 148A procedures, as Section 148 is applicable because of Section 148A. This step will give you clarity on their procedural stage.
3. Collect all the required information like account records, tax forms, as well as other proof for the year in question. Focus on the particular income or transaction that may have remained untaxed.
4. Draft the required tax return or the letter depending on the circumstances. If there is any income in question, put forth the facts and evidence to support your claims.
5. File your response through the correct income tax portal. Make sure you keep the receipt of the filing.

Fees and Charges for Section 148 Response

Usually, there is no fee associated with the Section 148 responses, except in cases where professionals are hired for help in document preparation. If reconciliation, amended computation, or finding out something else is required, it is necessary to employ the most qualified people to do that.

Section 148 Notice Reply Timeline

Stage	What You Must Do	Deadline
Section 148A(b) notice	File written response	Minimum 7 days; up to 30 days on request
Section 148A(d) order authorizing assessment	No action required — wait for Section 148	AO issues within 1 month of your response
Section 148 notice (reassessment)	File fresh ITR for that assessment year	Generally 30 days from notice (or extended as specified)
Response to AO queries during assessment	Submit additional documents	As specified in each query, typically 15–30 days
Appeal against assessment order	File before CIT(Appeals) or ITAT	30 days from assessment order

Note: Start immediately. Unlike routine notices, Section 148/148A responses require substantive preparation; gathering financial records for a past year can take significant time. Begin document collection the day you receive the notice, not the week before the deadline.

Understanding ITR filing deadlines is essential context for reassessment responses; our guide on the last date for ITR filing covers due dates and the consequences of late filing.

Post-Response Compliance After Section 148 Notice

When the reply is sent, the assessee must keep watching the reassessment process, paying attention to the records relied upon in the reply to your inquiry. If the officers request any additional information, the reply must be in line with the information in your filing and accounts.

For companies, internal compliance must involve revisiting their tax controls, reconciliation rules, and final reporting procedures to prevent similar issues from happening in the future.

Penalty and Risks of Ignoring Section 148 Notice

Should the notice go unattended, your department could make use of available evidence to go ahead with reassessment. Poor response can add to the risk of incurring surcharges, interest payments, and additional legal actions.

It is clear from the text of the section and from the department’s page that the notice is part of the continuum of mandatory reassessment steps. Therefore, the non-response can be costly.

A suitable reply safeguards the taxpayer’s interests, diminishes the chance of unwarranted penalties, and brings about an accurate record for the tax authorities. It also signifies that the enterprise is adherent to the law and is willing to cooperate.

For Indian enterprises, the correct handling of the Section 148 notification assists in maintaining liquidity, lowering the possibility of litigation, and improving governance with regard to tax payment in the future.

Consequence	Provision	Amount
Interest on reassessed tax	Section 234A	1% per month from original due date
Interest on reassessed tax (non-payment)	Section 234B	1% per month
Penalty for under-reported income	Section 270A	50% of tax on under-reported income
Penalty for misreported income (deliberate)	Section 270A	200% of tax on misreported income
Penalty for failure to file return	Section 271F	₹5,000 (now ₹10,000 under Section 234F for late filing)
Prosecution for willful non-disclosure	Section 276C	Up to 7 years imprisonment

The compounding effect: If the AO determines that ₹10 lakh of income escaped assessment and you didn’t respond, the total liability could include: additional tax (30%) = ₹3 lakh + interest (234A/B from original due date) + penalty (Section 270A) at 50% of tax = ₹1.5 lakh minimum. The total exposure can be 2-3x the original tax amount.

Common Mistakes to Avoid in Section 148 Reply

One of the mistakes one makes is thinking of the notice as ordinary and delaying response until the deadline. Another mistake is responding without finding out if an issue is simply a mismatch, an escaped item of income, or some deep-rooted accounting issue.

Other mistakes include submitting incomplete documents, disregarding the original return, failing to reconcile the AIS or the bank statements, and not keeping the proof of submission. All such mistakes in question undermine your stance.

Benefits of Responding Correctly to Section 148 Notice

A well-prepared response helps protect the taxpayer’s position, reduces the risk of unnecessary additions, and creates a clearer record for the department. It also shows that the business is compliant and responsive.

For Indian businesses, proper handling of a Section 148 notice can preserve cash flow, reduce dispute risk, and improve future tax governance.

Reassessment can affect carried-forward losses previously; our guide on how to carry forward losses while filing ITR explains the impact of reassessment on loss carry-forward entitlements.

Example of Responding to a Section 148 Income Tax Notice

A concern gets a Section 148 notification for the past assessment year because a high income was not properly disclosed in the previous return. The entity gathers relevant invoices, bank statements, and documents and files a comprehensive reply evidencing that the amount has been declared for taxation or has otherwise undergone proper tax treatment.

In another situation, the proprietor may realise that the income received from the terminated project was omitted from the previous return. In this case, the appropriate reply would comprise reconciliation of the revenue, explanation of the omission relevant to the tax authority, and the filing of the return as required.

How Kanakkupillai Can Help with Section 148 Notice Reply?

• Notices’ examination and identification – Kanakkupillai can check Section 148 notices, identify the right assessment year, issues at hand, and the action expected of the client.
• Collecting and organising documents – The company provides assistance in organising the copies of returns, financial statements, ledgers, bank statements, and other evidence to comply with the response request.
• Response creation – The company can create the right response, including all the necessary facts and reconciliations according to the content of the notice.
• Portal filing support – They can help submit the response through the income tax portal and maintain proof of filing for future reference.
• Follow-up inquiry and clarification response – Kanakkupillai is ready to help in making the follow-up response if extra features or clarification is demanded from the department.
• Business compliance advice – In light of the fact that reassessment usually uncovers bookkeeping or reporting deficiencies, Kanakkupillai can also counsel customers on compliance practices and advancements in taxation.
• Professional advisory assistance – As a business compliance and advisory organisation, they achieve objectives by helping taxpayers become more confident in the management of their legal and taxation issues.

Conclusion

A notice under Section 148 is essentially a notice of reassessment that needs to be addressed quickly and carefully according to the Income Tax Act. Making the right return, paying attention to the necessary documentation, and providing an excellent explanation can help you is the best way to minimize tax risks.

Frequently Asked Questions (FAQs)

1. What is a Section 148 notice?

It is a reassessment notice requiring the assessee to furnish a return because income may have escaped assessment.

2. Is a Section 148 notice the same as a tax demand?

No, it is a notice to reopen assessment proceedings, not a final tax demand by itself.

3. Can the department issue the notice without following procedure?

The Act says the notice is subject to Section 148A and requires the statutory conditions and approval process before issue.

4. What happens if I ignore the notice?

The department may proceed with reassessment based on the information available to it.

5. Can a Section 148 notice be challenged?

Yes, in some cases the notice or the reassessment proceedings can be contested if there are procedural errors, lack of jurisdiction, or other valid legal grounds.

6. What should I do first after receiving a Section 148 notice?

First, check the notice carefully, identify the relevant assessment year, gather the related financial records, and prepare a timely response with proper explanations.