Which income tax notice is this, and how long do you have?

What an income tax notice actually is

An income tax notice is a formal step in a procedure, and it says which step. That is the entire meaning of the section number on it. It is not a verdict, it is not an accusation, and — this is the part that causes most of the unnecessary fear — most of them are not sent by a person who has looked at your file. The great majority are generated automatically when a computer compares two records and finds they disagree.

The department holds more about your year than you filed. It holds what your employer reported deducting, what your bank reported paying you in interest, what the registrar reported about a property you bought or sold, what a mutual fund reported redeeming, and what a broker reported. Your return is one account of the year. Those reports are another. Where the two do not line up, a letter is generated. Whether it is a routine reconciliation or the beginning of something serious depends entirely on which procedure the letter belongs to.

So the first job is not to answer. It is to identify. A letter that says a sum is payable, a letter that says your return has a defect, and a letter that says your return has been selected for examination are three completely different situations with three different clocks, and they arrive looking almost identical — the same header, the same tone, the same Document Identification Number in the corner.

Why you received it — what actually triggers a notice

The triggers are more mechanical, and more boring, than people expect. Almost nothing on this list involves anyone suspecting anything.

• Your tax credit statement does not agree with your return. Someone deducted tax from a payment to you and either filed the statement late, filed it against the wrong PAN, or did not file it at all. Their error becomes your demand.
• A high-value transaction was reported and does not appear in your return — a property registration, a large cash deposit, a foreign remittance, mutual fund redemptions above a threshold, a credit card settlement above one.
• Your return declared income but the tax on it was not paid, or was paid under a challan the system could not match to you.
• A deduction or exemption is disproportionate to the income declared. This is a ratio test, not a judgment about you.
• A return was expected and none was filed — a common trigger where tax was deducted at source, because the deduction itself tells the department there was income.
• Turnover reported under GST does not agree with turnover in the return or the tax audit report.
• The return had a formal defect: a schedule left blank, a balance sheet not filled in where the form required one, an audit report not filed alongside.
• Random selection. A proportion of scrutiny cases are picked by the computer-assisted selection system with no adverse trigger at all, and there is nothing to read into it.

What to do in the first hour, in order

Two things are worth doing even when the notice turns out to be routine. Download the notice and keep it, because the portal does not always keep old ones visible. And check whether there is an outstanding demand recorded against you for any other year, under Pending Actions — an old demand you have forgotten about is what turns this year's refund into no refund at all.

1. 1Check it is genuine. Every genuine communication from the department since October 2019 carries a Document Identification Number, and there is a free "Authenticate notice/order issued by ITD" tool on the e-filing portal that will confirm it. A communication without a valid DIN is to be treated as never issued. Anything demanding payment to an account, a UPI ID or a link that is not incometax.gov.in is a fraud, and the department does not ask for card details, passwords or OTPs by email.
2. 2Find the assessment year on the letter. It is usually top right and it decides which Act governs — 2026-27 or earlier means the 1961 Act numbering, 2027-28 onward means the 2025 Act numbering. It also tells you how old the dispute is, which affects almost everything else.
3. 3Find the date of service and write the deadline on the letter in pen. Not "about a month" — the date. Nearly every avoidable loss in this area is a period that ran out while somebody was deciding what to do.
4. 4Identify which procedure it belongs to using the router above, and read what happens if the period passes. That consequence is what decides how quickly you need help.
5. 5Log in to the e-filing portal and look at the same notice there, under Pending Actions and e-Proceedings. The portal version tells you what response the department is expecting and in what form, which the letter frequently does not.
6. 6Only then decide whether you need a professional. For an intimation that agrees with your return, no. For a scrutiny notice, a reopening notice, or a demand of any size, the cost of an hour with a Chartered Accountant is small against the cost of an answer that concedes something you did not need to concede.

How responses actually get filed

Almost everything is done on the e-filing portal, and almost nothing is done on paper. The three routes that matter are separate and easy to confuse.

What happens to the money while you argue

This is the question that decides whether people fight, and it is the question almost no page answers. Filing an appeal does not suspend the demand. The demand and the appeal run in parallel, and unless you do something about the demand it continues to behave as though you had simply not paid.

There are two separate things people confuse here, and the confusion is expensive. The first is the condition for filing at all: an appeal to the Commissioner (Appeals) is not admitted unless you have paid the tax due on the income you *returned* — that is, on what you yourself declared, not on the addition you are disputing. The second is stay of demand: a separate application to the assessing officer to be treated as not in default while the appeal is pending. Long-standing administrative guidance sets the usual condition for that at 20% of the disputed demand — but it is guidance, not a statute, the officer can order less on the facts, and the Supreme Court has confirmed that a lesser amount can be directed.

Interest does not stop while any of this happens. It runs at 1% for every month or part of a month from the end of the period the notice allowed, and "part of a month" means a single day into a new month costs a full month's interest. If the appeal succeeds and the demand falls away, the interest falls away with it; if it does not, you have been financing the dispute at 12% a year.

Rectification or appeal — the fork that catches people

When an order or an intimation is wrong, there are two ways to attack it and they are not alternatives you can try in sequence at leisure. A rectification corrects a mistake apparent on the record — an arithmetic error, a credit the system did not pick up, a challan not matched, a figure transposed. It is free, it is quick, and it goes back to the same office that made the order. An appeal challenges the substance of what was decided. It costs a fee, it goes to a different authority, and it has a hard 30-day limit.

The trap is that the 30 days for the appeal keep running while a rectification is pending. A rectification takes months. People file one, wait, are refused, and discover the appeal window closed while they waited. Where the point could go either way, the safe order is to file the appeal first — it can always be withdrawn if the rectification succeeds — and the delay can be condoned for sufficient cause, but "I was waiting for a rectification" is a reason you would rather not have to argue.

The line between the two is narrower than it sounds. A mistake apparent on the record means one that is obvious from the record itself and does not need argument to establish. If explaining why it is wrong takes a paragraph, it is not a rectification, whatever it feels like.

What it costs to fight it, and how long it takes

The statutory fees are small enough to be irrelevant to the decision. A first appeal costs between ₹250 and ₹1,000 depending on assessed income. A Tribunal appeal costs between ₹500 and ₹10,000, the top slab being 1% of assessed income capped at ₹10,000. What actually costs money is representation and time.

When this stops being something you can handle yourself

The converse is worth saying too, because fear sells a lot of unnecessary services. An intimation that agrees with your return needs nothing. An intimation showing a refund needs nothing. A demand that is plainly right and small is paid, not fought. A mismatch caused by a deductor who filed late resolves itself once they correct the statement. Most letters are not the beginning of a battle.

• A reopening notice for an old year. The limitation rules are intricate, a notice issued outside them is bad, and the point has to be taken early and correctly or it is lost.
• Any notice proposing a penalty for misreporting. The difference between under-reporting and misreporting is 50% of the tax and 200% of the tax, and it turns on characterisation — which is an argument, made in writing, at a specific stage.
• A scrutiny notice where the year involved capital gains, foreign assets, a business, or anything you would struggle to reconstruct from documents you still hold.
• A demand large enough that you would need a stay, because the stay application is a separate proceeding with its own persuasion problem.
• Anything where you have already missed a period. Condonation is possible at most stages, but it needs a reason put properly, and a second mistake there is usually final.

Worked examples