Income Tax Notice — Types, Meaning, and How to Respond in 2026

Getting an income tax notice is stressful — but most notices are routine and easy to resolve. The key is understanding what type of notice you received and responding correctly within the deadline. Here is a complete guide to every type of IT notice in 2026.

First: Don't Panic

Most income tax notices are not scrutiny notices. The majority are:

• Intimation under Section 143(1) — routine processing result
• Defective return notice under Section 139(9) — minor error in your ITR
• Demand notice — small tax difference

Only a small percentage are actual scrutiny notices requiring detailed response.

Types of Income Tax Notices

1. Intimation Under Section 143(1) — Most Common

What it is: This is not really a "notice" — it's an automated intimation after your ITR is processed. It shows:

• Tax computed by the IT Department
• Tax you declared in your ITR
• Any difference (demand or refund)

What to do:

• If it shows a refund — wait for it to be credited to your bank account
• If it shows no demand, no refund — nothing to do, your ITR is accepted
• If it shows a demand — check if the difference is correct. If yes, pay it. If no, file a rectification request under Section 154

Deadline: Respond within 30 days if there's a demand.

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2. Defective Return Notice Under Section 139(9)

What it is: Your ITR has a technical error — wrong form, missing schedule, inconsistent data.

Common reasons:

• Filed ITR-1 when you should have filed ITR-2 (capital gains)
• Missing capital gains schedule
• Mismatch between income declared and TDS claimed
• Incomplete bank details

What to do:

• Log in to incometax.gov.in
• Go to "e-Proceedings" → respond to the notice
• File a revised return in the correct form

Deadline: 15 days from the date of notice (can be extended on request).

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3. Notice Under Section 143(2) — Scrutiny Notice

What it is: The IT Department wants to scrutinize your return in detail. This is a serious notice.

Common triggers:

• Large deductions claimed (80C, HRA, home loan)
• Significant mismatch between AIS and ITR
• High-value transactions not explained
• Sudden drop in income compared to previous years
• Cash deposits not matching income

What to do:

• Respond within the deadline (usually 30 days)
• Gather all supporting documents
• Respond through the e-Proceedings portal
• Consider getting professional help — this is where mistakes are costly

Deadline: Specified in the notice — typically 30 days.

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4. Notice Under Section 148 — Reassessment Notice

What it is: The IT Department believes income has escaped assessment — i.e., you didn't declare some income in a previous year.

Time limit: Can be issued up to 3 years from the end of the assessment year (10 years for income above ₹50L).

What to do:

• File a fresh ITR for the year mentioned in the notice
• Respond with all supporting documents
• This is serious — get professional help immediately

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5. Notice Under Section 156 — Demand Notice

What it is: A formal demand for tax, interest, or penalty.

What to do:

• Pay the demand within 30 days to avoid further interest
• If you disagree, file an appeal or rectification request

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6. Notice Under Section 245 — Refund Adjustment

What it is: The IT Department wants to adjust your current year's refund against an outstanding demand from a previous year.

What to do:

• If the demand is correct — agree to the adjustment
• If the demand is incorrect — respond within 30 days explaining why

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How to Check if You Have a Notice

1. Log in to incometax.gov.in
2. Go to "e-Proceedings" under the Services menu
3. All pending notices and their deadlines are listed here

Also check your registered email — the IT Department sends notices to your registered email ID.

Common Mistakes When Responding to Notices

• Ignoring the notice — leads to ex-parte assessment (IT Department decides without your input)
• Missing the deadline — attracts penalty and interest
• Responding without documents — your response must be backed by evidence
• Wrong portal — always respond through the official e-Proceedings portal, not by email

How to Avoid Notices in the First Place

• Reconcile AIS before filing — the most common trigger for notices is AIS mismatch
• File the correct ITR form — ITR-2 for capital gains, not ITR-1
• Declare all income — bank interest, dividends, rental income
• Keep documents — rent receipts, investment proofs, bank statements for 7 years

Frequently Asked Questions

Is a 143(1) intimation the same as a notice?

No. Section 143(1) is a routine intimation after processing. It's not a scrutiny notice. Most taxpayers receive this every year.

What happens if I ignore an income tax notice?

The IT Department will proceed ex-parte — they'll assess your income without your input, often resulting in a higher demand. Ignoring notices also attracts penalties.

How long does the IT Department have to issue a scrutiny notice?

Section 143(2) scrutiny notice must be issued within 3 months from the end of the financial year in which the ITR was filed.

Can I respond to a notice myself or do I need a CA?

For simple notices (143(1) demand, 139(9) defective return), you can respond yourself. For scrutiny notices (143(2), 148), professional help is strongly recommended.

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Received an income tax notice? I handle notice responses starting at ₹499. Message me on WhatsApp — I'll review the notice and tell you exactly what to do.