Income Tax Act 1961 Section 148a: Inquiry Before Reassessment Notice (2026)

Explainer · Income Tax · Reassessment

Updated for 2026 · Claw Editorial

Section 148A of the Income Tax Act, 1961 is the safeguard that comes before a reassessment. Since 1 April 2021 the Assessing Officer cannot simply issue a Section 148 notice to reopen a past year. First the officer must put the information to you, hear your reply, and pass a reasoned order on whether reopening is justified. That inquiry stage is Section 148A. This explainer sets out the steps, how to reply, the time limits, and what a defect in the process can mean for the notice that follows. Last verified October 2026.

01Why Section 148A exists

Before 2021, the department could reopen an assessment on the officer having a "reason to believe" income had escaped, and the taxpayer often learned the full basis only later. The Finance Act, 2021 added Section 148A from 1 April 2021 to change that.

Now the officer must show the information up front and let you respond before any reassessment notice is issued. The idea is to stop weak or vague reopenings and to give you a fair chance to explain before the machinery starts.

02The steps under Section 148A

In its current form, the inquiry runs like this:

• the officer has information which suggests income chargeable to tax has escaped assessment for a year;
• the officer issues a show cause notice giving that information and asking why a Section 148 notice should not be issued;
• you file a reply within the time allowed; and
• the officer, after considering the reply, passes an order deciding whether it is a fit case to reopen.

03How to reply to the notice

The reply is your main chance to stop a reopening. In it you can:

• explain that the income was in fact offered to tax, with proof such as returns, accounts and bank entries;
• show that the information is wrong, or does not belong to you;
• point out that the amount is below the threshold, or the year is beyond the time limit; and
• ask for the material relied on, if it has not been fully shared.

File the reply on the e-filing portal within the time given, and ask for more time in writing if you genuinely need it.

04The order and what follows

After your reply, the officer passes an order. If the order says it is a fit case, a notice under Section 148 follows and you then file a return for that year and the reassessment under Section 147 begins. If the order says it is not a fit case, the matter ends there.

The order must deal with the points you raised. A non-speaking order, which ignores your reply, is a common ground to challenge the later notice. For the notice stage, see Section 148 reassessment notice and how to respond to a Section 148 notice.

05Time limits

The Section 148A inquiry and the Section 148 notice both sit inside the outer limits in Section 149. Broadly, reopening is allowed up to about three years from the end of the assessment year, and up to about five years where the escaped income is Rs 50 lakh or more.

So before you even argue the facts, check the year. If the time limit for your assessment year has closed, the whole process, including the 148A inquiry, can be challenged as time barred.

06What the 2024 change did

Section 148A was first inserted by the Finance Act, 2021. The Finance (No. 2) Act, 2024 then simplified it with effect from 1 September 2024. The earlier version had a set of lettered clauses, including a preliminary inquiry step with approval. The simplified version keeps the core safeguard, that is a show cause notice, your reply and a reasoned order, but trims the procedure.

So the exact wording depends on the date of the notice. A notice before 1 September 2024 follows the earlier clause structure, and a later one follows the simplified version.

07Where Claw fits

Claw is an all-in-one legaltech platform for Indian advocates, law firms, and corporate legal teams, combining AI-based case search, an AI legal assistant (Legal GPT), case management, and compliance automation across all Indian courts and tribunals.

Whether a Section 148A order and the notice that follows survive a challenge turns on a growing body of High Court rulings about information, reply and the reasoned order. Claw lets you search more than 30 crore judgments and orders, with results in under 5 seconds, so you can find how courts have read Section 148A, non-speaking orders and the Ashish Agarwal line of cases. Reported authority runs from Supreme Court rulings of 1950 and High Court rulings of 1990 to recent orders. You can also track a live matter, with its orders and hearings, by party name across 9,102 courts, benches and forums. Claw does not use the documents you upload to train its AI models.

Create a FREE Claw account to track your reassessment matter and its hearings, and use case search across Indian courts to find how Section 148A has been applied. For ongoing files, teams use income tax appeals tracking.

08Sources and further reading

• India Code (Income Tax Act, 1961 bare text): indiacode.nic.in
• Income Tax Department (law and acts): incometaxindia.gov.in
• Income Tax e-filing portal: incometax.gov.in
• Claw: clawlaw.in

This explainer is general information, not legal or tax advice. Tax law changes through the annual Finance Acts and judgments, so check the current text and take advice from a professional before you act.

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