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Income Tax· Updated Jul 2026· 8 min read· By CA Sumit Chandwani· AY 2026-27

Got an Income Tax Notice? What Each Type Means and How to Respond

An income tax notice is not automatically bad news, but ignoring one always is. Here is what each common notice means, how long you have to reply, and what it costs you if you stay silent.

What's in this guide
  1. First, don't panic
  2. The notices you might get
  3. Reply deadlines at a glance
  4. What happens if you ignore it
  5. Get help replying

Notices are more common than they used to be. With the department now matching your return against AIS, Form 26AS and reported transactions automatically, even a small mismatch can trigger one. The good news: most notices are routine and fixable, if you respond in time and correctly.

First, don't panic, but don't ignore it

Read the notice carefully and note three things: the section it cites, the reason given, and the deadline to respond. Almost every notice is handled through the "e-Proceedings" module on the e-filing portal, and every response generates an acknowledgement you should save. The mistake that turns a small notice into a big problem is silence.

The notices you might get

Section 143(1), intimation. The most common one, and usually not scrutiny. It is a system-generated comparison of your return with the department's records. It may confirm your return, show a refund, or propose an adjustment and a demand. If it matches your return, no action is needed; if it proposes an adjustment, you agree or disagree on the portal.

Section 139(9), defective return. Issued when your return is incomplete or inconsistent, for example a missing schedule or unpaid self-assessment tax. You typically get 15 days to fix it. Ignore it and your return is treated as invalid, as if you never filed.

Section 143(2), scrutiny. Your return has been selected for detailed examination. This one needs care and usually professional help. It can only be issued within three months from the end of the financial year in which you filed, so for a return filed in FY 2025-26 the outer limit is 30 June 2026.

Section 245, refund set-off. The department proposes to adjust a refund due to you against an old outstanding demand. You get a short window to object; silence is treated as agreement, and the refund is adjusted automatically.

Section 148, reassessment. Issued when the officer believes income has escaped assessment. This is serious and should be handled with a professional from the start.

Reply deadlines at a glance

NoticeWhat it meansTime to respond
143(1)Intimation / adjustment30 days
139(9)Defective return15 days (extendable)
142(1)Inquiry before assessment15–30 days
143(2)Scrutiny selectedAs stated in notice
245Refund set-off~21–30 days

What happens if you ignore it

Each ignored notice has a specific cost. An unanswered 143(1) adjustment becomes a final demand. An ignored 139(9) makes your return invalid and can cost you loss carry-forward and a late-filing fee. An ignored 245 lets the department take your refund without consent. And repeatedly ignoring inquiry or scrutiny notices can lead to a best-judgement assessment under Section 144, where the officer estimates your income on the least favourable reasonable view, plus interest and penalties.

Get help replying correctly

The reply matters as much as the deadline, a rushed or wrong response can make things worse. If you have received any notice, our team can read it, reconcile the figures, and draft the correct response through the portal. Our Income Tax & ITR filing service handles notices end to end. Get a free consultation and send us the notice.

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Frequently asked questions

When is a tax audit mandatory under Section 44AB?
For a business, when turnover exceeds ₹1 crore, or ₹10 crore if cash transactions stay under 5% of both receipts and payments. For a professional, when gross receipts exceed ₹50 lakh. It is also mandatory if you opt out of a presumptive scheme like 44AD or 44ADA and declare profits below the presumptive rate while your income exceeds the basic exemption limit.

Frequently asked questions

Is an income tax notice always bad?
No. Many notices, such as a Section 143(1) intimation, are routine and may simply confirm your return or a refund. The important thing is to read it, understand the section, and respond within the deadline.
How long do I have to respond to an income tax notice?
It depends on the section: about 15 days for 139(9) and often 143(2), and 30 days for 143(1), 156 and 245. The notice itself states the exact deadline.
What happens if I ignore an income tax notice?
Consequences vary by notice: an ignored 143(1) adjustment becomes a demand, an ignored 139(9) makes your return invalid, and an ignored 245 lets the department adjust your refund. Persistent non-response can lead to a best-judgement assessment under Section 144.
Do I need a CA to respond to a notice?
For a simple 143(1) intimation you may be able to respond yourself, but for scrutiny (143(2)) or reassessment (148) notices, professional help is strongly advisable to avoid a worse outcome.

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