Income Tax Scrutiny & Assessment Process in India: A Step-by-Step Guide
Reviewed by CA Nikhil Gupta · Last reviewed 17 June 2026
Getting selected for income tax 'scrutiny' sounds alarming, but for most taxpayers it's a manageable, document-driven process — especially now that it's largely 'faceless', conducted entirely online without any in-person meetings with tax officials. Here's how cases get selected, what the process actually involves, and how to respond effectively if you receive a scrutiny notice.
What Is 'Scrutiny Assessment'?
Scrutiny assessment under Section 143(3) is a detailed examination of your return — going beyond the automated checks of Section 143(1) — where the Assessing Officer verifies that you haven't understated income, overstated losses/deductions, or otherwise understated your tax liability. It begins with a notice under Section 143(2).
How Are Cases Selected for Scrutiny? (CASS)
Most scrutiny cases are selected through CASS (Computer Assisted Scrutiny Selection) — an algorithm-driven system that flags returns based on risk parameters such as:
- Significant mismatches between AIS/Form 26AS data and the income reported in the ITR
- High-value transactions inconsistent with the declared income level
- Large refund claims relative to income/TDS
- Year-on-year inconsistencies in income, expenses, or claimed deductions
- Information from external sources (search/survey on related parties, information exchange with other agencies)
- Random selection for a small percentage of returns, as a deterrent and quality-check mechanism
Section 143(2) Notice: The Starting Point
The Faceless Assessment Scheme
Since 2019-2020, scrutiny assessments are conducted under the Faceless Assessment Scheme, designed to eliminate physical interface between taxpayers and tax officers. Key features:
- All communication happens through the e-filing portal / e-proceedings tab — notices, your responses, and orders
- Cases are allocated to assessment units through an automated, randomized system, so you typically don't know (and can't predict) which officer/unit is handling your case
- No physical visits to the tax office are required for the vast majority of cases
- A National Faceless Assessment Centre (NaFAC) coordinates the process
The Process: Step by Step
- Notice under Section 143(2) — informs you that your case has been selected for scrutiny
- Notice under Section 142(1) — calls for specific documents, books of account, or information relevant to your case
- You respond via e-proceedings — uploading documents and explanations within the specified time (extensions can be requested)
- Show-cause notice (if any proposed addition/disallowance) — you get a chance to explain before any adverse view is finalized
- Assessment order under Section 143(3) — the final order, either accepting the return as filed or making specific additions/disallowances with reasons
How to Respond Effectively
- Respond within deadlines — request extensions proactively if you need more time, rather than missing deadlines silently
- Organize documentation by the specific query raised — bank statements, contracts, invoices, proof of source of funds, etc.
- Be precise and factual — faceless assessment relies entirely on written submissions, so clarity matters more than ever
- Engage a CA for representation, especially for business income cases or where additions are proposed
If You Disagree With the Final Order
If the Section 143(3) order makes additions you disagree with, you can file an appeal before the Commissioner of Income Tax (Appeals) / Joint Commissioner (Appeals) within the prescribed time (generally 30 days from the date of service of the order), and further appeals lie with the Income Tax Appellate Tribunal (ITAT) and beyond.
2026 current-law quick reference
What changes the answer?
| What to check | What to do | Common mistake to avoid |
|---|---|---|
| Core classification | A scrutiny case should be managed issue-by-issue: authenticate the notice, identify assessment year/section, build an evidence index and answer only the issues raised while preserving the complete factual record. | Do not decide from the label used on an invoice, agreement or bank narration alone. |
| Edge case | A genuine DIN/portal notice can still contain an incorrect factual assumption; authentication is not acceptance of the department’s position. | Recompute when the fact pattern crosses this boundary. |
| Evidence | Reconcile the documents below to the tax/regulatory return before filing. | A correct legal rule with an unreconciled evidence trail can still fail in assessment or audit. |
| Effective date | Apply the law/form/rate for the actual transaction, tax year or proceeding date. | Do not mix FY 2025–26/AY 2026–27 legacy references with post-1-April-2026 forms. |
Worked practical example
A notice questions share-sale gains and bank deposits. Prepare separate reconciliations and source documents for each issue rather than one narrative response.
Evidence checklist
- notice/DIN
- return/computation
- issue-wise evidence index
- portal acknowledgements
- orders/rectification trail
Primary-source checks: Income Tax Act 2025 hub / transition · Income Tax Department current tax guidance
How to use this: This current-law summary reflects the latest position. Where it conflicts with an older rate, threshold, form or section reference elsewhere on the page, rely on the current, dated primary source above.
Frequently Asked Questions
Source and review trail
Use the current official instrument, portal or regulator publication before acting. This panel separates the category authority from page-specific references.
- Primary category
- Income Tax
- Official starting point
- www.incometax.gov.in
Page source links
The prior page did not embed a page-specific external source. The category authority above is the minimum verification starting point; a specific instrument should be added when available.
Primary sources & related provisions
Statutory provisions referenced in this guide: