Intimation Under Section 143(1): What It Means and What to Do

Most people get this email and feel a small knot in the stomach. Official sender. Income Tax Department. Subject line: "Intimation under Section 143(1) of the Income Tax Act." Sounds serious. Looks serious. For the vast majority of filers, though, it is anything but.

Over 7 crore Indians received this exact letter last year. It is one of the most routine communications in the entire Indian tax system — the government's automated way of saying: 'We processed your return. Here is the result.' That is genuinely all it is in most cases.

What this article gives you: a plain-language explanation of what the intimation actually says, what the three possible outcomes mean for you personally, how to open that password-protected PDF, and the exact steps to take — whether there is money to pay, a refund coming, or nothing to do at all.

What Is an Intimation Under Section 143(1)?

Every time someone files an ITR in India, it lands at the Centralised Processing Centre (CPC) in Bengaluru. The CPC runs an automated comparison — your numbers versus what the government already knows from Form 26AS, the Annual Information Statement (AIS), and TDS records submitted by your employer or bank. No one sits and reads your file. Algorithms handle the whole thing.

Once that comparison is done, the system fires off a notice telling you the result. That is the 143(1) intimation. Think of it as the government's automated report card on your return.

One more thing for 2026 readers: the new Income Tax Act, 2025, which kicked in on April 1, 2026, renumbers this provision. What used to be Section 143(1) is now called Section 270. Same rules, same 9-month timeline, same three outcomes. Just a new number.

Also Read - New Income Tax Act Rules

Why Over 7 Crore Indians Get This Every Year?

More than 7 crore ITRs were filed for Assessment Year 2025-26 by Sep 15, 2025. That figure comes straight from the Income Tax India official twitter handle. For context, that is more people than the entire population of France. 

Here is the thing — every single one of those verified returns triggers a 143(1) intimation. Every. Single. One. It is not selective. It is not targeted. The CPC processes them all.

So when that notice lands in your inbox, you are not being singled out. You are one of 7 crore. Completely routine.

Also worth noting: 58.57 lakh of those 7.28 crore filers were first-timers. Millions of people dealing with this letter for the first time, with no idea what it means or what to do with it. If that is you right now — you are in massive company. And this article exists precisely for you.

The Three Possible Outcomes — Decoded

Actually, let us back up for a second before getting into the steps. There are only three things a 143(1) intimation can tell you. Understanding which one you are dealing with determines everything that follows.

Also Read - How to claim your TDS refund

How to Open the Intimation PDF — Step by Step

The intimation comes as a password-protected PDF attached to an email from cpc@incometaxindiaefiling.gov.in. You also get an SMS on your registered mobile. And if you cannot find either — no problem. It lives permanently on the Income Tax portal.

The Password Formula

PAN in lowercase + date of birth in DDMMYYYY format. Run them together. No space in between. No hyphen. No forward slash. Nothing.

If the email has gone missing or landed in spam, here is how to pull the document straight off the portal.

Download from the Income Tax Portal

1. Head to incometax.gov.in. Log in with your PAN and password.
2. Top menu: click 'e-File', then 'Income Tax Returns', then 'View Filed Returns.'
3. Find the Assessment Year you want.
4. Click 'View Details' on that row.
5. Look for the 'Acknowledgement and ITR-V / Intimation Order' tab. Under it: 'Download Intimation u/s 143(1).'
6. Open the PDF. Password = PAN lowercase + DOB in DDMMYYYY, no gap.
7. Inside you will find a two-column table — your declared figures on one side, the CPC's version on the other. That comparison tells you everything.

How to Respond to a 143(1) Intimation Online?

Most people reading this will not need to do a single thing. No change or refund? The whole process is automated. Go live your life.

But if there is a demand — or if the CPC made an adjustment you disagree with — here is exactly what to do.

Scenario A: You Agree with the Demand

1. Log in to incometax.gov.in.
2. Go to 'e-File', then 'e-Pay Tax.' Or use the pre-filled challan attached to the intimation — it is faster.
3. Type of Payment: select 400 — Tax on Regular Assessment. Not 300.
4. Enter the amount. Complete the payment. Save the challan receipt somewhere you can find it.
5. The demand clears on the portal within a few working days. You can track it under 'Pending Actions.'

Scenario B: You Think the CPC Got It Wrong

This happens. TDS data sometimes lags. Deductions get flagged incorrectly. If you have evidence the system made an error, here is the rectification path.

1. Login at incometax.gov.in.
2. 'Services' in the top menu. Select 'Rectification.'
3. Choose the Assessment Year.
4. Rectification type: 'Taxpayer Correcting Data in Return of Income' or 'Return Data Correction (XML)' depending on what needs fixing.
5. Upload your evidence — Form 16, Form 26AS, bank statement, whatever supports your position.
6. Submit. You get an acknowledgement number immediately. Screenshot it.
7. Track progress: 'Services' > 'Rectification' on the portal.

30 days. That is the window. From the date on the intimation, you have 30 days to respond on the portal — whether you are paying or disputing. The department treats no response as full agreement with the demand. Do not let the deadline slip.

Life Insurance Payouts and the 143(1) Connection

This is where it gets interesting — and where most tax guides just stop.

If your life insurance policy  is not compliant for exemption u/s 10(10D), the insurer is required to deduct TDS under Section 194DA before handing over the maturity amount. That TDS then shows up in your Form 26AS.

Now here is where the mismatch happens. You file your ITR and claim the TDS credit. But the CPC cross-checks your claim against Form 26AS. If the numbers do not match — could be a PAN entry error on the policy, a timing gap between when the insurer filed the TDS return and when you filed your ITR, or just a clerical slip — the system flags it. You get a 143(1) demand.

The short-term fix is straightforward: before filing, always verify your Form 26AS, confirm every TDS entry, and make sure the maturity proceeds are reported in the right schedule.

The better fix is structural. Choose a policy where the maturity is fully exempt under Section 10(10D) — that means zero TDS is deducted, there is nothing to report in your ITR, and there is literally no Form 26AS entry for the CPC to question. Clean at source.

Section 143(1) vs. Section 143(2) — Not the Same Thing

People mix these up often. Understandable — they look similar on paper. They are not.

Short version: 143(1) is the automated annual check. 143(2) is a human saying they want to look closely at your affairs. One is routine. The other requires a CA on speed dial.

So what do you actually do now?

Open the email. Use the password formula. Read the two-column table inside the PDF.

Three lines down from that, your situation is clear. Either nothing has changed and you are free to move on. Or there is a refund coming — make sure your bank account is pre-validated. Or there is a demand — verify it, decide whether you agree, and act within 30 days.

That is genuinely it for most people.

Where it gets worth thinking about more carefully is the underlying cause. Most 143(1) demands trace back to the same handful of things: TDS credits not matching, deductions slightly over the limit, income that showed up in Form 26AS but not in the ITR. Some of that is filing error. Some of it is structural — products that generate TDS entries the CPC will always question.

A life insurance policy structured to fall under Section 10(10D) generates none of that. No TDS. No Form 26AS entry. No mismatch for the system to flag. Less noise every filing season. That kind of planning does not eliminate the 143(1) intimation — everyone gets one — but it removes a category of demand that is entirely avoidable.

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Disclaimer

This article is for general informational purposes only and does not constitute legal, tax, or financial advice. Tax laws are subject to change. References to Section 143(1) of the Income Tax Act, 1961 and Section 270 of the Income Tax Act, 2025 are based on information available as of April 2026. Readers should consult a qualified Chartered Accountant or tax professional before acting on any tax intimation or notice. 

Shriram Life Insurance Company Limited does not provide tax advice. Insurance products are subject to terms, conditions, and IRDAI regulations.