Income Tax Notice Decoder — Meaning, Deadline & What To Do

Quick answer

An income tax notice is a written communication from the Income Tax Department asking you to explain, correct, pay or produce something. To decode it, find the section number printed on it, the assessment year it is about and the response due date. Then log in to the e-filing portal, open e-Proceedings, read the full issue, and reply online before the deadline with a short explanation and supporting documents.

How to use the Notice Decoder

The decoder has one field, so it takes less than a minute. The real work is reading your notice correctly before you pick an option. Follow these steps.

1. Find the section number. It is usually printed in the subject line or the first paragraph, for example "Notice under section 143(1)(a)" or "Intimation u/s 143(1)". On a portal message it appears in the notice title.
2. Pick the matching option in "Section written on your notice". If your notice mentions two sections, such as 148A and 148, pick the one that matches the stage you are at.
3. Read the result. You see what the department is asking, how many days you usually get, the next step and a worry level: low, act on time, or serious.
4. Compare with your actual notice. The reply time shown is the usual period. The date printed on your notice always wins if it is different.
5. Use the guide below to prepare and file your reply, or let an expert handle it if the worry level says serious.

The decoder explains the notice in general terms. It does not read your specific figures, so always open the full notice and its annexure on the portal before you respond.

Read your notice line by line

Most panic comes from not knowing which line matters. A genuine notice follows a fairly standard layout, and five pieces of information tell you almost everything.

Assessment year vs financial year

This is the most common confusion. If a notice says AY 2024-25, it is about the return you filed for income of 1 April 2023 to 31 March 2024. Pull out the Form 16, bank statements and AIS of that year, not the current one.

Notice, intimation or order?

The heading tells you what stage you are at, and the stage decides what you can still do.

• Intimation (such as 143(1)) is the result of processing. It is informative, but any demand in it becomes payable if you do nothing.
• Notice or show-cause notice (such as 143(1)(a), 142(1), 148A) asks for your reply before a decision. This is the stage where a good reply has the most effect.
• Order (assessment order, rectification order, penalty order) is the decision itself. Once an order is passed, the remedies are rectification, appeal or revision, not a simple reply.
• Demand notice (156) follows an intimation or order and asks for payment of the amount worked out.

So a show-cause notice with a date still ahead is good news in one sense: you can still shape the result.

Who sent it

Many notices now come from a faceless unit or the Centralised Processing Centre (CPC) rather than a named local officer. That is normal. You reply online, and you do not need to visit any office unless the notice clearly asks for a personal hearing and you choose one.

Old Act or new Act?

The Income-tax Act, 2025 is in force from 1 April 2026 and uses the term "tax year" with new section numbers. Notices about earlier years will usually still quote the familiar sections of the 1961 Act, which is what this decoder uses. If a notice quotes a section you do not recognise, check which Act it names in the heading, and ask an expert to map it before replying.

Check it is genuine before you reply

Fake tax messages are common, especially SMS and e-mails promising a refund if you click a link. A real notice will always be visible after you log in to the portal yourself, under Pending Actions. Never log in through a link in an SMS or e-mail; type the address of the official income tax e-filing portal in your browser.

The department does not ask for your card PIN, OTP, net-banking password or a payment to a personal account. Any message that does is not from the department, whatever logo it carries.

How to reply on the e-filing portal

Almost every notice is answered online. The path is similar for most sections.

1. Log in to the e-filing portal with your PAN and password.
2. Go to Pending Actions → e-Proceedings. For a demand or a refund adjustment, also check Pending Actions → Response to Outstanding Demand.
3. Open the proceeding for the right assessment year and click View notices. Download the notice and any annexure.
4. Click Submit response. Depending on the notice, you either choose from options (agree, disagree, partly agree) or type a written reply.
5. Attach supporting documents as PDF files. Keep each file clearly named, such as "Bank-statement-SBI-FY24-25.pdf".
6. Submit and download the acknowledgement. Save it with the notice in one folder.

If you need more time

For many proceedings the portal shows an option to seek an adjournment. Ask before the due date, give a genuine reason (documents awaited from bank, illness, travel) and propose a realistic date. Whether to grant it is the officer's decision, so do not treat an adjournment request as automatic.

If you want a hearing

In faceless proceedings you can request a personal hearing through video conference when the notice or the proposed order gives you that option. It is useful when the issue is complex and easier to explain than to write.

What happens after you submit

For processing-stage notices such as 143(1)(a) or 139(9), CPC takes your response into account and processes the return again. The result arrives as a fresh 143(1) intimation, which may show a refund, a demand or "no demand, no refund". Read it carefully, because it is the final outcome of your reply.

For scrutiny and reopening, the officer may ask follow-up questions through further notices before issuing a draft or final order. Each follow-up has its own due date. Keep checking e-Proceedings and your registered e-mail, and do not assume the matter is closed just because you replied once.

Make sure your registered mobile number and e-mail on the portal are current. Notices are sent there, and the law treats a notice sent to your registered e-mail as served even if you never opened it.

Agree, disagree or partly agree: how to decide

Notices like 143(1)(a) and outstanding-demand responses give you fixed options. Picking the right one matters because it decides what the system does next.

• Agree when the department is right, for example you really forgot to include savings interest. The adjustment is made and tax, if any, becomes payable. Agreeing early stops further interest from building up.
• Disagree when the item is wrong or already covered, for example the income was shown under another head or belongs to another person. Give a one or two line reason and attach proof.
• Partly agree when part of the amount is genuine and part is not, for example AIS shows interest twice. Explain which portion you accept.

Do not pick "disagree" just to delay. A reply without reasons usually gets rejected, and the adjustment goes through anyway.

Worked examples

Example 1: interest missing from the return (143(1)(a))

Ravi, a salaried employee in the 30% slab under the old regime, gets a 143(1)(a) notice. The annexure shows fixed deposit interest of ₹22,000 in his AIS that is not in his return.

• He checks his bank's interest certificate. The ₹22,000 is correct and he simply forgot it.
• He agrees to the adjustment. Extra tax = ₹22,000 × 30% = ₹6,600, plus 4% cess of ₹264, total ₹6,864 (before any interest).
• Any TDS the bank deducted on this interest is already credited in Form 26AS and reduces the amount payable.

Had the interest been already included in "income from other sources" under a different description, he would disagree and point to the line in his return where it appears.

Example 2: refund adjusted against an old demand (245)

Sunita expects a refund of ₹18,500 for the latest year. She receives a 245 intimation proposing to adjust ₹7,200 against an outstanding demand for an earlier year.

• She finds she had already paid that ₹7,200 through a self-assessment tax challan, but the challan was not linked to her return.
• She disagrees with the demand under Response to Outstanding Demand and uploads the challan copy with its challan identification number.
• If accepted, the full ₹18,500 is released. If she had agreed, she would have received only ₹18,500 − ₹7,200 = ₹11,300.

Example 3: TDS claimed without the income (139(9))

Amit, a freelance consultant, filed a return claiming TDS of ₹40,000 deducted by a client on fees of ₹4,00,000, but he reported only his salary. CPC sends a defective-return notice because the credit is claimed without the matching receipts.

• He responds by filing a corrected return under the 139(9) response option, now showing the ₹4,00,000 as professional receipts in the correct ITR form.
• The TDS of ₹40,000 is then allowed as credit against his total tax.

The lesson: wherever TDS is claimed, the income behind it must also appear in the return.

Example 4: a cash deposit question (133(6))

Meena runs a small home-tuition class and receives a 133(6) request asking about cash deposits of ₹11,20,000 in her savings account during a year. Her return showed tuition receipts, but the department wants to know the source of the cash.

• She prepares a simple month-wise table: tuition fees received in cash ₹7,80,000, and ₹3,40,000 redeposited from her own earlier ATM withdrawals for a cancelled purchase.
• Check: ₹7,80,000 + ₹3,40,000 = ₹11,20,000, which matches the deposit total.
• She attaches the fee register, the bank statement with the withdrawal entries highlighted, and a short covering note.

Because the explanation adds up and agrees with her return, the information request usually ends there. A vague answer such as "savings from earlier years" without any trail is what leads to further proceedings.

Timelines you should know

Beyond the reply date on your notice, a few legal time limits decide how long the department can act and how long you have to challenge an order. These are the limits under the Income-tax Act, 1961 that apply to the years most people get notices for.

If a scrutiny notice arrives after its time limit, that is a legal point worth raising. Check the dates carefully or have an expert check them before replying on merits.

How to write a reply that closes the issue

Officers deal with a large number of cases. A short, organised reply gets understood faster than a long emotional letter.

1. Quote the reference. Mention the notice DIN, section and assessment year in the first line.
2. Answer each point separately. If the annexure lists three items, number your reply 1, 2 and 3 in the same order.
3. State facts, then proof. For example: "The cash deposit of ₹4,50,000 on 12 August is from the sale of old jewellery. Sale bill and buyer's details attached as Annexure A."
4. Match your return. Every figure you give must agree with what you filed, or clearly explain why it differs.
5. Be polite and brief. Avoid accusing the department of error; simply show the correct position.
6. List the attachments at the end so nothing is missed.

A simple reply format

For most information requests and mismatch notices, a reply in this shape works well:

• Opening: "With reference to notice DIN ____ dated ____ under section ____ for AY ____, I submit as follows."
• Point-wise answer: one short paragraph for each issue in the annexure, with the amount, the explanation and the annexure number of the proof.
• Reconciliation, if figures differ: a small table showing the amount in AIS, the amount in your return and the reason for the difference.
• Closing: a request to accept the return as filed (or with the change you agree to), and your name and PAN.

Documents usually needed, by issue

Before you draft, open your AIS and Form 26AS for the year. Our AIS and 26AS guide explains where each entry should appear in the return, which is often the exact point a notice is asking about.

If you disagree with the final outcome

Replying to the notice is the first step. If the department still passes an order or raises a demand you believe is wrong, there are formal remedies.

• Rectification under 154. For an error apparent from the record, such as TDS not credited, a calculation error, or a deduction ignored that is clearly in the return. It is filed online and is the quickest route for simple mistakes.
• Appeal to the Commissioner (Appeals). For disputes on facts or law, such as whether a receipt is income at all. It is filed online in the prescribed form within the time limit, with the appeal fee.
• Stay of demand. While an appeal is pending, you can request that recovery be kept on hold. The department may ask for a part payment of the disputed demand.
• Revised or updated return. If you yourself find a mistake before the department acts, a revised return (within the time allowed) or an updated return (up to 48 months from the end of the assessment year, with additional tax) can correct it. An updated return is not allowed in some situations, for example once certain assessment proceedings have started, so get advice first.

Choosing the wrong remedy wastes time. A 154 request cannot decide a debatable legal issue, and an appeal is slower than needed for a simple TDS credit mismatch.

Interest and penalties that can follow

When a notice adds income, the extra tax usually brings interest with it. If the addition means your advance tax was short, interest under sections 234B and 234C can apply, and if the return was filed late, 234A as well. You can estimate these with our 234A, 234B and 234C interest calculator.

Penalties are a separate step. They come only through a show-cause notice that gives you a chance to explain. Treat any notice that mentions penalty as serious, and reply on time with reasons, because the reply often decides whether a penalty is imposed at all.

Common mistakes that turn a small notice into a big one

• Ignoring it. Silence is treated as acceptance in many proceedings. A routine mismatch notice can become a final demand with interest.
• Replying to the wrong year. Sending documents of FY 2025-26 for a notice about AY 2025-26 (which is FY 2024-25) is surprisingly common.
• Replying by e-mail or post only. Unless the notice says so, submit the reply on the portal so it is recorded in the proceeding.
• Uploading everything. Hundreds of pages of unrelated statements bury the one document that answers the question. Send what is relevant and label it.
• Changing your story. A reply that contradicts your return or an earlier reply damages credibility. Check what you filed before writing.
• Paying a wrong demand just to be done. Once paid and accepted, getting it back is harder. Verify the demand first.
• Waiting for the last day. Portal slowdowns near deadlines are real. Aim to submit a few days early.
• Not saving the acknowledgement. Without it, proving that you replied on time is difficult.
• Fixing the notice but not the cause. If the mismatch came from a habit, such as never reporting savings interest or ignoring a second Form 16, the same notice will return next year. Correct the habit in your next return too.

Messages that look like notices but are not

Not every e-mail from the department is a formal notice. Knowing the difference helps you set priorities.

• Compliance e-campaigns. The department sometimes sends e-mails or SMS about high-value transactions it has seen, inviting you to check whether they are in your return. These are not assessments, but take them seriously: check your AIS and, if something was missed, consider correcting it yourself.
• Return processed messages. A message saying your return has been processed usually comes with the 143(1) intimation. If it shows no demand and no refund difference, nothing more is needed.
• Refund failure alerts. These usually point to a bank account problem, not a tax problem. Our refund delay checker explains the usual reasons and fixes.
• Reminder to file. If you had income or TDS but no return on record, you may receive a reminder. File the return, or explain why you were not required to.

If you are not sure which category your message falls into, check Pending Actions on the portal. Formal proceedings appear under e-Proceedings with a DIN.

When to take expert help

Many 143(1) intimations and simple 143(1)(a) mismatches can be handled yourself if you are comfortable with the portal. Take help when:

• the notice is under 143(2), 142(1), 148 or 148A, or mentions penalty;
• the amount involved is large compared with your income, or involves property, cash deposits or foreign assets;
• you have already missed the reply date, or a demand has become final;
• you are unsure whether to agree, disagree, rectify or appeal;
• several years are involved, or the same issue keeps coming back.

When you approach an expert, bring the notice, the return and computation for that year, Form 16 or 16A, AIS and Form 26AS, and bank statements covering the transactions in question. Having these ready on the first day saves a lot of back and forth, especially when the reply date is close.

An early, well-drafted first reply is usually the cheapest point to fix an issue. Our income tax filing service covers notice replies as well as returns.

Get it checked by an expert

Not sure what your notice really wants, or how to word the reply? A TaxCaller expert can read the full notice and annexure, check it against your return, AIS and Form 26AS, and draft and file the response on the portal for you. We tell you the fee upfront before starting any work, and the first call to understand your notice is free. Share the notice and your return for that year, and we will tell you clearly what needs to be done and by when.