A Section 143(2) scrutiny notice means the Income Tax Department has selected your return for detailed examination — going beyond the automated CPC processing that produces 143(1) intimations. Scrutiny can happen for two reasons: CASS (Computer Assisted Scrutiny Selection) which uses risk parameters to flag returns algorithmically, or Compulsory Scrutiny which applies to specific categories mandated by CBDT guidelines (search cases, survey cases, international transactions above thresholds, etc.).

1. AIS Never Reviewed — The Root of Most Scrutiny

The Annual Information Statement aggregates data from over 40 types of entities — banks, brokers, property registrars, credit card companies, mutual fund AMCs, GSTN, and from April 2026, crypto exchanges. All of it is cross-referenced to your PAN. Most salaried taxpayers rely entirely on their Form 16 and assume their CA has the complete picture. The CA has what they were given. AIS has everything else. The gap between what AIS knows and what your ITR declared is exactly where scrutiny notices originate.

The fix is simple and takes 15 minutes: download AIS from the portal every April before filing. Every entry that appears in AIS must appear somewhere in your ITR — either as declared income or as declared exempt income in Schedule EI. Nothing in AIS should be invisible in your return.

2. Capital Gains — The Most Commonly Missed Income

Your broker reports every sale transaction to the department. A mutual fund redemption, a share sale, an SGB redeemed early — all appear in AIS under “Capital Gains” within weeks of the transaction. If your ITR has an empty Schedule CG, the department’s system sees a transaction that was reported but not declared. This is one of the most reliable scrutiny triggers in current practice.

The fix: record every capital transaction at the time it happens — the date, the scrip, the sale price, the purchase price. Do not wait until June to reconstruct your annual capital gains from broker statements. Your broker’s P&L report handles the calculation — your job is to ensure it is available when your CA sits down with you.

3. GST Turnover vs ITR Business Income — The Business Owner’s Risk

GSTN data flows into AIS automatically. If your GSTR-1 shows ₹48 lakh in supplies and your ITR Schedule PGBP shows ₹28 lakh in business income — the ₹20 lakh gap is an immediate scrutiny flag. The department does not need to guess; the data is right there.

Common legitimate explanations: exempt supplies (not taxable under GST but included in turnover), pass-through expenses (materials you bill to clients but do not keep as income), timing differences between invoice dates and receipt. These explanations are credible — but they need to be documented and presented, not just thought of after the notice arrives. Prepare a GST-to-ITR income reconciliation statement every year before filing either return.

4. Multiple Bank Accounts — Interest Aggregation

The TDS threshold for bank interest is ₹40,000 per bank per year (₹50,000 for seniors). If you have three banks each paying ₹35,000 in interest — no bank deducts TDS. But AIS aggregates all three. Your ITR should show ₹1,05,000 under Schedule OS. If it shows zero — the three separate AIS entries create three separate mismatches. One 143(1) intimation typically follows, escalating to scrutiny if the amounts are large and the pattern suggests habitual non-declaration.

The fix: collect interest certificates from every bank every April. Create a simple annual worksheet listing every account, every bank, every interest amount. Give it to your CA along with Form 16.

5. Deductions Claimed That Do Not Exist in AIS

Section 80C deductions of ₹1.5L where AIS shows no PPF contribution, no ELSS investment, no LIC premium — just a claim. Brokers, AMCs, and LIC all report to AIS. If you claimed ₹50,000 in ELSS but the AMC reported ₹0 in purchases under your PAN for that year — the deduction claim versus AIS data creates a discrepancy. The same applies to 80D health insurance claims without matching insurer records.

The fix: invest first, then declare. Submit Form 12BB to your employer only after making the actual investment. Keep all premium receipts, FD/RD confirmation slips, and investment account statements for at least 7 years.

Case 1 — Rohan (Delhi, IT Professional) — Resolved in 25 Days

Salary ₹18.5 lakh. CA filed ITR based only on Form 16. During the year, Rohan had sold shares from his Zerodha account — STCG of ₹4.8 lakh. Zerodha reported it to AIS. ITR showed zero capital gains. Section 143(2) scrutiny notice arrived.

What we did: Downloaded broker P&L statement and contract notes. Cross-checked AIS to confirm the exact amounts. Filed a revised ITR within 10 days of the scrutiny notice — adding the ₹4.8L STCG. Paid additional tax of ₹92,000 (STCG at 20%) + Section 234B interest of approximately ₹7,400. Submitted a written response in e-Proceedings with the revised ITR acknowledgement, broker P&L, and challan copy.

Result: Scrutiny withdrawn in 25 days. No Section 270A penalty — because the correction was made proactively via revised ITR before the AO passed any assessment order. Total cost beyond the tax itself: ₹7,400 in interest. A much smaller price than the 50% penalty that would have applied had the AO added the income in the assessment.

Rohan’s new habit from the following year: checks his broker’s quarterly capital gains summary every October and flags anything not already in his AIS.

Case 2 — Priya (Gurgaon, Boutique Owner) — Full Documentation, No Demand

Priya’s savings account showed ₹24 lakh in cash deposits in FY 2023-24. She had declared business income of ₹15 lakh in her ITR — but the AIS figure of ₹24 lakh deposits created a visible gap. Scrutiny notice arrived asking for the source explanation.

The full picture: ₹19 lakh was from daily boutique sales — supported by monthly sales registers and GST invoices (GSTR-3B showed consistent turnover). ₹5 lakh was a family gift from her father, received via bank transfer with a registered gift deed. The ITR income declaration was actually correct — the gap between declared income and deposits was explained by timing, the business’s cash-to-digital payment mix, and the gift.

What we submitted: Month-wise cash sales register, GSTR-3B for all 12 months, bank statement showing gift credit with the father’s name, registered gift deed, CA-certified cash flow reconciliation. All packaged into a single PDF with a covering letter referencing each document by exhibit number.

Result: Scrutiny closed within 6 weeks. Zero demand. Zero penalty. Priya now maintains a monthly digital sales ledger and has shifted most customer payments to UPI — reducing cash deposit volumes and the scrutiny risk that comes with them.

1. 1Read Carefully — Note the Exact Ask
   What specific information or documents does the notice request? Which Assessment Year? What is the response deadline? Is it a general scrutiny or a specific item query? Do not assume — read the notice word by word. The specificity of the ask tells you exactly what the AO is looking at.
2. 2Call a CA — Same Day
   Scrutiny notices require professional handling. The response is a legal document submitted to a government authority — it will be on record and referred to throughout the assessment. Call a CA on the day the notice arrives, not after you have done your own research and drafted a response. The first response sets the tone for the entire proceeding.
3. 3Download AIS and Compare with Your ITR
   Understand exactly where the department believes there is a mismatch. AIS shows what they see. Your ITR shows what you declared. The gap between the two is what the notice is about. Identifying this precisely guides both your document collection and your written explanation.
4. 4If Income Was Missed — File Revised ITR First
   If the scrutiny has revealed genuinely undeclared income and the revised ITR window is still open (December 31 of the AY), file the revised ITR before or simultaneously with your scrutiny response. This demonstrates proactive correction — the AO sees that you acknowledged the error and corrected it without waiting for a forced assessment. This materially reduces penalty risk under Section 270A.
5. 5Compile Documents — Thoroughly
   Every claim in your response needs a document. Business income → GST returns + bank statements + P&L. Capital gains → broker P&L + contract notes. Gift → gift deed + bank transfer record. Cash deposits → sales register + invoice summary. Organise as Annexure A, B, C with a covering letter that references each exhibit. A well-organised response is processed faster and creates a better impression than a stack of loose papers.
6. 6Submit via e-Proceedings — Before Deadline
   incometax.gov.in → e-Proceedings → find the scrutiny notice → Submit Response → write explanation → attach documents → submit → download acknowledgement. Submit at least 5 days before the deadline — portal issues on deadline day are common. If you genuinely need more time, apply for adjournment before the deadline expires, not after.

1. Download AIS in April — before filing — every entry in AIS must appear in your ITR or in Schedule EI. No exceptions.
2. Download AIS again in October — after filing — new data sometimes arrives post-July filing. If anything new appeared — December 31 is still the revised ITR window.
3. Track every capital gain in real time — every share sale, every MF redemption, every FD premature closure with interest — recorded on the day it happens.
4. Collect interest certificates from every bank every April — all accounts, all FDs, all RDs. Give them to your CA along with Form 16.
5. Reconcile GST and ITR income before filing either — prepare a written reconciliation that explains any difference. This becomes Exhibit A if scrutiny ever arrives.
6. Document cash transactions above ₹2 lakh immediately — source, purpose, who paid, in what form. Never rely on memory months later.
7. Invest before declaring deductions — never submit Form 12BB based on intended investments. Only declare what you have actually made.
8. Keep all financial records for 7 years minimum — bank statements, investment proofs, sale documents, gift deeds, GST returns, ITR acknowledgements. Reassessment notices can go back 5–10 years in serious cases.

Responding without a CA for a complex notice:
A self-written response to a scrutiny notice that uses informal language, misses legal references, or fails to address the AO’s specific question weakens your position. The AO may draw adverse inferences from an incomplete response. For scrutiny (unlike a simple 143(1) demand), CA involvement is not optional — it is investment protection.

Submitting documents without a covering letter:
A pile of bank statements and invoices without a structured explanation of what each document proves is hard for the AO to process — and increases the risk of follow-up questions that delay closure. Every response should have a numbered covering letter: “Exhibit A shows… Exhibit B demonstrates… Exhibit C confirms…” This is how professional responses are structured, and it shows the AO that the case is well-prepared and credible.

Missing the adjournment deadline:
If you cannot respond in time, apply for adjournment before the deadline — not after. An expired deadline without an adjournment request creates a default situation where the AO can proceed ex-parte. An adjournment granted buys time without consequence. An expired deadline is procedurally significant.

Conflicting explanations across documents:
If your covering letter says the cash deposits came from business sales, but the bank statement shows large round-number credits without matching GST invoice references, the inconsistency is noted. Prepare the explanation and check it against every document before submitting. The documents must confirm the explanation — not contradict it.