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How to Respond to a Section 143(3) Scrutiny Notice in India

A Section 143(3) scrutiny notice is one of the most common — and stressful — notices your clients will receive. This guide covers exactly what to do, step by step.

By Finkr·February 20, 2026·8 min read

In this guide

  1. 1. What is a Section 143(3) notice and why was your client selected?
  2. 2. How is it different from a 143(1) intimation?
  3. 3. Step-by-step response process
  4. 4. Documents you will need
  5. 5. Response timeline — what happens if you miss it?
  6. 6. Common mistakes CAs make in scrutiny responses
  7. 7. How Finkr helps manage scrutiny notices at scale

1. What is a Section 143(3) Notice?

Under Section 143(3) of the Income Tax Act, 1961, the Assessing Officer (AO) has the power to conduct a detailed scrutiny of a taxpayer's return. When your client receives a 143(3) notice, it means the IT department has selected their return for examination and will verify the income, deductions, and tax liability claimed before issuing a final assessment order.

Scrutiny can be triggered by several factors: high-value transactions flagged by the Annual Information Statement (AIS), significant mismatch between Form 26AS and the return, unusual deductions, CASS (Computer Aided Scrutiny Selection) random selection, or specific industry-wide scrutiny campaigns by the CBDT.

2. How is it Different from a 143(1) Intimation?

Many clients confuse 143(1) and 143(3) notices. The key difference:

3. Step-by-Step Response Process

Here is the exact process to follow once a 143(3) notice is received:

  1. Read the notice carefully. Note the specific queries raised, the return year (AY), and the response deadline. The AO will list specific points of inquiry — respond only to those.
  2. Log into the Income Tax e-filing portal (incometax.gov.in) under your client's PAN. The notice and response mechanism are managed through the e-proceedings section under "Pending Actions".
  3. Download AIS and Form 26AS for the relevant AY and reconcile them with the return before preparing your response.
  4. Prepare a point-by-point reply. Address each query raised by the AO in sequence. Do not volunteer additional information beyond what is asked.
  5. Upload supporting documents through the e-proceedings portal. Files should be PDF/ZIP format and clearly labeled per the query they address.
  6. Submit the response before the deadline. Download and save the acknowledgment.

4. Documents You Will Need

The exact documents depend on the AO's specific queries, but a standard scrutiny response typically requires:

5. Response Timeline and Penalties for Missing It

The response deadline is stated in the notice itself, typically 15–30 days from the notice date. Failure to respond has serious consequences:

6. Common Mistakes CAs Make in Scrutiny Responses

7. How Finkr Helps Manage Scrutiny Notices at Scale

For CA firms managing dozens or hundreds of clients, tracking multiple scrutiny notices across different AYs and clients — while ensuring nothing slips past a deadline — is a significant operational challenge.

Finkr's AI scans uploaded 143(3) notices, automatically extracts the specific queries raised, the response deadline, and the risk level. The Fink AI assistant can draft a point-by-point response structure in seconds, which the CA then reviews, edits, and files. The compliance calendar automatically sets deadline alerts so no response date is ever missed.

Managing multiple scrutiny notices across your client portfolio?

Finkr tracks all pending notices, extracts deadlines, and drafts AI-powered responses — so you never miss a due date across 50 or 500 clients.

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