A defective return notice does not say your return is wrong. It says it is incomplete — something the law requires to be in it is missing, or two figures inside it contradict each other, and until that is fixed the department cannot process it. That distinction matters, because the consequence of ignoring it is far worse than the defect itself: a return that is not corrected within the time allowed is treated as never having been filed at all. Every consequence of not filing then follows — the late fee, the interest, the loss of carried-forward losses, and the refund you were expecting. Most defects are administrative and take minutes to fix. The damage comes entirely from leaving them.
A Notice of Defective Return (Section 139(9)) is generated for a defined set of reasons rather than at random. The ones we see most often are these.
The defective return provision has historically been known as Section 139(9), and that is the number most notices and most guidance still cite. The Income-tax Act, 2025 renumbered the Act's provisions, so a notice issued under the new Act may carry a different number for the same power. The substance is unchanged: the assessing officer may intimate a defect, give you an opportunity to remove it, and treat the return as invalid if you do not. If the number on your notice does not match what you expected, that is usually renumbering rather than a different kind of notice — but read what the notice actually says it is about rather than matching the number alone.
The standard period is 15 days from the date of the notice, not from the date you happened to read it. An extension can be sought from the assessing officer, and is commonly granted where the request is made before the original period runs out — which is the important part. Where the defect is removed after the deadline but before the assessment is completed, the officer has discretion to condone the delay and treat the return as valid, but that is a discretion and not a right. The practical rule is simple: respond inside 15 days, or ask for more time inside 15 days. Do not do nothing inside 15 days.
There is no penalty for receiving a defective return notice, and none for correcting it. The cost is entirely in not correcting it. If the return becomes invalid, you are treated as not having filed: a late filing fee applies, interest runs on any unpaid tax, business and capital losses for the year cannot be carried forward, and any refund claimed simply does not arise. Where the return was your only filing for a year in which tax was payable, the position can escalate further into non-filing proceedings. Set against that, the fix is usually an evening's work.
Fake tax notices circulate constantly by email and SMS, and they are convincing enough that people pay them. The department does not ask for payment to a personal account, does not demand immediate transfer to avoid arrest, and does not send a payment link by SMS. Every genuine communication carries a document identification number, and that number can be checked on the income tax portal before you act on anything. The safest habit is never to follow a link in a message at all: open the portal yourself, log in, and look under e-Proceedings. A real notice will be there. If it is not on the portal, it is not a notice — whatever the letterhead says.
The same applies to telephone calls. Assessment in most cases is now faceless, which means the officer handling your file does not know who you are and has no reason to telephone you. Anybody who calls claiming to be from the department, asks for one-time passwords, or offers to settle a demand informally, is not from the department. If you are unsure whether something is genuine, the cost of checking is a two-minute login.
Non-residents receive these notices too, often for years in which they believed nothing was taxable in India, and being abroad changes the practicalities rather than the obligation. Everything is done on the portal, so no travel is required, but two things commonly go wrong. The first is access: the registered email and mobile number on the portal are frequently the ones held when the person left India, and a notice arrives at an address nobody reads. Update the contact details on the portal before you need them. The second is verification — a response that is not verified is not a response, and the verification routes available to a non-resident are narrower. Establish which one works for you in advance rather than discovering the problem on the last day of a deadline.
Where the notice relates to a year governed by the earlier Act, the section number on it will follow the law as it stood when the notice was issued. That is not a defect and it does not make the notice invalid. Read what the notice says it concerns rather than trying to match the number against the current Act.
People assume a response ends the matter, and usually it does — but the closure is rarely announced. Once a reply is filed the item moves out of your pending list on the portal and, in most cases, nothing further is heard. That silence is the normal outcome and it is not something to chase. What you should do is keep your own record: the acknowledgement of the response, the date it was filed, and the documents you relied on. Two years later, if the same year is reopened on a different ground, that file is the difference between a short letter and a long argument.
Where the response is not accepted, you will be told. The department may ask a follow-up question, issue a further notice on the same year, or — where a demand was involved — simply leave it standing. The important thing is to watch the portal rather than your inbox. Email delivery fails, addresses go stale, and spam filters are unforgiving; the portal is the authoritative record of what has been issued to you and what is outstanding against you. Logging in once a month takes two minutes and is the single most effective piece of tax hygiene available to anyone who has ever received a notice.
One thing worth understanding is that responding to one notice does not immunise the year against another. Processing, scrutiny selection and reassessment are separate mechanisms operating on separate timelines, and an intimation resolved in March says nothing about whether the same year is selected for examination in November. Nor does it work the other way: a year that has been examined and closed is generally protected, but only on the grounds actually considered. Keeping the underlying records for the statutory retention period, rather than only until the immediate question goes away, is what makes the next enquiry cheap.
We reply to income tax notices for individuals and businesses across India, entirely online. Assessment is largely faceless, so the officer handling your file may be anywhere — which means your own location no longer limits who can represent you.
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Not in itself. It is an administrative message saying something is missing, and the great majority of defects are procedural — an unpaid self-assessment tax, an incomplete schedule, the wrong form. What makes it serious is ignoring it, because an uncorrected return is treated as never filed, and every consequence of non-filing then applies retrospectively. Treat it as urgent but not alarming.
The return can be treated as invalid, with the consequences of not having filed. That said, the assessing officer has discretion to condone a delay where the defect is removed before the assessment is completed, and in practice a late but genuine correction is often accepted. You should not rely on that. If you cannot fix it within 15 days, apply for an extension inside the 15 days — a request made in time is far easier than forgiveness sought afterwards.
Neither, exactly. You file a return in response to the notice, through the e-Proceedings route, quoting the acknowledgement number of the original return. That links the correction to the original filing so the original date of filing is preserved. Filing an ordinary revised return instead is a common error: it may not be treated as a response to the notice, leaving the defect unremoved even though you have filed something.
Because the credit you are claiming implies income the return does not show. If tax was deducted on ₹10 lakh of professional receipts and the return declares ₹4 lakh of income with no explanation, the system flags the inconsistency. Sometimes the return is genuinely incomplete. Sometimes the income is correctly stated and the credit is being claimed in the wrong year, or relates to a different entity. Reconcile against Form 26AS and the annual information statement before deciding which it is.
Yes, routinely. The check is on completeness and internal consistency, not on whether your income is right. Using the wrong form, leaving a required schedule blank, or filing before paying the self-assessment tax will all produce a notice on a perfectly accurate return. That is why the notice should not be read as an accusation.
Treat it as an ordinary notice and respond on its terms. A notice issued for a year governed by the earlier Act will cite that Act's section numbers, and that is correct rather than defective — the law that applied when the notice was issued is the law it is issued under. It does not become invalid because the Act has since been renumbered, and pointing out the discrepancy is not a defence. Read what the notice says it is about rather than trying to match the number against the current Act, and reply to that. Where you are genuinely unsure which provision is being invoked, that is worth checking before responding, because the reply differs.
You can say so in the response, with reasons. It is worth doing where the defect arises from a misclassification — for example, where the system expects an audit report because of a presumptive declaration that was in fact correctly made. Be aware that disagreeing and being wrong costs you the 15 days, so where the defect is trivial and fixable it is usually faster to correct it than to argue about it.
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