Intimation Under
Section 143(1)
Meaning, Demand, Refund, Time Limits & Response Guide.
Simplified by CA Sagar Batra
An email from the Income Tax Department after you file your return tends to spike the heart rate a little. The subject line says Section 143(1), and your mind jumps to scrutiny, penalties, trouble. Take a breath. Nine times out of ten, it is the department simply telling you your return has gone through. That is all.
What follows is a plain breakdown of what an intimation under section 143(1) really means, why it landed in your inbox, how to read it without wrestling with jargon, and what to actually do once you know what it says. You get quick answers up top, comparison tables, worked examples, checklists you can act on, and 20 FAQs at the end. I have read more of these than I can count, and the same handful of situations turn up every filing season.
Quick Answers
What is Section 143(1)?
The early, automated processing of your income tax return at the department's Central Processing Centre. The system checks for arithmetic slips and obvious mismatches, then tells you one of three things: your return is fine as filed, a refund is coming, or you owe a bit more. Routine.
Is Section 143(1) a notice?
Not really. A 143(1) is an intimation, not a scrutiny notice. It reports the result of processing your return. Nobody is investigating you. You act only if it shows a demand or a proposed adjustment.
What should I do after receiving 143(1)?
Open the PDF, confirm your name, PAN, and assessment year, then compare the two columns: what you filed against what the department worked out. Matched, with no demand or refund? Do nothing. Refund? Sit tight. Demand? Check it before paying.
What if I disagree with 143(1)?
Don't sit on it. File a response on the e-filing portal, raise a rectification under Section 154 if the error is the department's, or file a revised return if the slip was yours. Miss the window and the demand sticks.
What Is Intimation Under Section 143(1)?
An intimation under Section 143(1) is the message you get once the Income Tax Department finishes processing your return. Think of it as the department writing back. You handed over your income, your deductions, and the tax you paid. The system ran those numbers against its own records and mailed you a summary of how it all squared up.
The authority sits in Section 143(1) of the Income Tax Act, 1961. Processing happens at the Central Processing Centre, and no human reads your return at this stage. The system hunts for arithmetic errors, internal contradictions, and gaps between what you declared and what the department already knows from Form 26AS and the Annual Information Statement (AIS).
The income tax intimation under Section 143(1) usually reaches you by email, from an address like intimations@cpc.incometax.gov.in, with an SMS nudge on your registered mobile. The PDF attached to that mail is the intimation. If you want to see how the underlying calculations actually run, our page on Section 143(1) walks through the mechanics.
Say this plainly: it does not mean you slipped up somewhere. Every processed return throws out a 143(1) result, good news or otherwise.
Confused by your 143(1) intimation?
Don't guess with your taxes. If the demand looks complex or you're unsure which remedy fits, let our experts review your PDF on WhatsApp.
Discuss with ExpertWhy Does the Income Tax Department Issue It?
Crores of returns get filed each year. No human can review every one, so the law set up a quick automated layer to run a few defined checks and produce an early verdict. That layer is Section 143(1).
It exists to:
- ✓ Confirm your arithmetic holds up
- ✓ Check that the entries inside your return don't contradict each other
- ✓ Match your declared income and taxes against department records
- ✓ Flag obvious, non-debatable errors
- ✓ Settle the final tax payable or refund due
That early pass helps both sides. You learn within months that a deduction was knocked back or a TDS credit didn't match, instead of stumbling onto it years later. The department clears routine cases without parking an officer on each file, and refunds keep moving.
What it is not: a deep look into your books, your claims, or how you spend your money. That is a separate exercise entirely.
What Does Section 143(1) Mean for Taxpayers?
For you, a 143(1) is a status update, and it lands one of three ways. Either your return cleared without a hitch and the matter is shut, money is coming back to you, or the department's numbers disagree with yours and you owe something or your refund got shaved.
My standard advice runs short. No demand and no refund? Treat it as a receipt and file it. A refund? Watch your bank account. A demand? Slow down and read before you pay a paisa, because a good chunk of demands trace back to small data mismatches that can be sorted without parting with money.
"People react far harder than the situation warrants. A ₹40 demand and a real scrutiny notice feel identical in that first jolt, yet they sit on completely different shelves."
Is Section 143(1) a Notice or Just an Intimation?
This trips up plenty of people, partly because half the internet, and even some emails, casually call it a "Section 143(1) notice."
The honest distinction: an intimation is not a notice. A notice tells you to do something, explain something, or show up somewhere. An intimation reports an outcome. A 143(1) is a summary assessment communication, the product of automated processing and nothing more.
Set it beside the real notices:
- Section 143(2): Opens a scrutiny assessment
- Section 142(1): Asks you to file a return or hand over information
- Section 148: Reopens an assessment for income that escaped tax
A 143(1) sets none of these in motion. So when someone says they "got a 143(1) notice," they almost always mean the everyday intimation. The one situation that genuinely calls for action is when the intimation carries a demand or a proposed adjustment under Section 143(1)(a), which I'll get to.
If you ever receive an actual notice instead of an intimation, our guide on income tax notices lays out how they differ and what each one wants from you.
Who Issues Section 143(1)?
The Central Processing Centre (CPC) in Bengaluru issues it. Think of the CPC as the department's automated processing engine.
What it does:
- • Processes returns electronically, with no jurisdiction-based handling
- • Keeps manual intervention out of the processing stage
- • Applies adjustments strictly by law and by the data on file
- • Pushes refunds out far quicker than the old manual setup ever managed
Because a CPC intimation under Section 143(1) is mechanical, the adjustments follow rules and nothing else. The system has no judgment, no opinion on grey areas. That is exactly why a 143(1) can fix only limited, obvious things and cannot touch anything debatable.
A useful picture: a very fast clerk who only verifies totals and matches numbers against a master record. That clerk can't ask whether your business expense made sense. It can only flag that a figure doesn't add up or doesn't match.
When Is Section 143(1) Issued?
The intimation comes after your return is processed, and processing kicks in only once you e-verify. Skip e-verification and the return counts as unfiled, so there's nothing to process.
On timing, the law gives the department nine months from the end of the financial year in which you filed the return.
Timeline Example:
You file your FY 2024-25 return in July 2025. That financial year of filing closes on 31 March 2026. Add nine months and you reach 31 December 2026. The intimation can arrive any time before that date.
No intimation at all? Usually it means your return was accepted with nothing changed, and the law then treats your ITR-V acknowledgement as the deemed intimation.
Even so, log in and check the processing status rather than assume. Clean salaried returns sometimes clear within a couple of weeks; others take a few months, especially when the whole country is filing at once.
Confused by your 143(1) intimation?
Don't guess with your taxes. If the demand looks complex or you're unsure which remedy fits, let our experts review your PDF on WhatsApp.
Discuss with ExpertTypes of Intimation Under Section 143(1)
Three outcomes, full stop. The one you got tells you everything about your next move.
| Outcome | What it means | Action needed |
|---|---|---|
| No Demand, No Refund | Your figures matched the department's | None |
| Refund Determined | You paid more tax than due | None, wait for credit |
| Tax Demand Raised | You owe additional tax | Verify, then pay or dispute |
1. No Demand No Refund
The cleanest result there is. Your income, deductions, and taxes paid all lined up with the department's computation. Nothing to collect, nothing to return. This is how most carefully filed salaried returns turn out when Form 16, Form 26AS, and AIS have been reconciled before submission. Read it, confirm the details are yours, done. No reply needed.
2. Refund Determined
The department agrees you overpaid, so money is coming back. This is the 143(1) refund intimation people are glad to see. A few points worth knowing:
- A refund goes out only if it crosses ₹100
- It lands in the pre-validated bank account linked to your PAN
- You may also pick up interest under Section 244A
The usual culprit behind a refund is excess TDS. If your refund comes back smaller than expected, take it as a signal. Something in your return got adjusted, so read the computation closely before deciding the department got it wrong.
3. Tax Demand Raised
This is the result that rattles people, the one everyone calls a Section 143(1) demand notice. It means the CPC arrived at a higher tax liability than what you paid. It happens when:
- The system's tax figure exceeds the tax you paid
- A deduction or exemption you claimed got disallowed
- Income sitting in department records was added because it was missing from your return
From here you have two roads. Pay it if the demand is genuinely right, or dispute it through a response, rectification, or revised return if it rests on an error. Whatever you do, don't pay before you understand the reason. Plenty of demands vanish the moment a TDS mismatch is fixed.
Demands & Refunds: The Core Drivers
Common Causes of Demands
Usually, it's just a data mismatch, not a penalty.
- • TDS Mismatch: Claims vs. 26AS.
- • AIS Mismatch: Missed Income. Learn more
- • Excess Claims: 80C > 1.5L caps.
- • Unreported Interest: FD/Savings.
Why Refunds Happen
You paid more tax than your final liability.
- • Excess TDS: HRA/Deductions missed by employer.
- • Bank TDS: Flat rates vs. lower tax slab.
- • Advance Tax: Paid over actual liability.
- • TCS/Double TDS: High-value transactions.
What Details Are Included in a 143(1) Intimation?
Open the PDF and you'll find a tidy, structured document. Knowing the parts makes it far less intimidating.
| Section | What it shows |
|---|---|
| Identity details | Name, PAN, address, assessment year |
| Return reference | ITR form used, filing date, acknowledgement number |
| Document ID | Unique ID of the intimation |
| Two-column computation | "As provided by you" versus "As computed under 143(1)" |
| Tax outcome | Refund amount, demand amount, or nil |
| Interest and fees | Interest under 234A/B/C, late fee under 234F |
| Refund details | Refund sequence number and bank account |
The two-column comparison is the part that matters. One column is what you filed; the other is what the department computed. Every gap between them explains why you ended up with a refund or a demand. If the gap sits in how your income was totalled, it helps to understand how gross total income is built across various income heads.
How to Download the Intimation
The intimation reaches you by email, but those mails get buried often enough that you should know how to pull it from the portal yourself.
- Log in to the e-filing portal at incometax.gov.in
- Go to e-File > Income Tax Returns > View Filed Returns
- Find the relevant assessment year
- Click Download Intimation Order
Example: PAN
ABCDE1234F + DOB 01/01/1990 = abcde1234f01011990
How to Read & Action Plan
Start at the top—name, PAN, and assessment year. Then, head straight to the two-column computation. Hunt for any row where "as provided by taxpayer" and "as computed under 143(1)" disagree.
My Action Checklist:
- ✅ Nil result: File it, do nothing.
- ✅ Refund: Confirm bank details are pre-validated, wait for credit.
- ✅ Demand: Find the reason, then pay or dispute.
Agree with Demand?
Pay using Challan ITNS 280. Under Type of Payment, strictly pick "Tax on regular assessment (400)". The code 400 is crucial for proper mapping.
Disagree?
Use Rectification (Sec 154) for department errors, or Revised Return for your own slips. Don't let it gather dust; respond within the timeline.
Confused by your 143(1) intimation?
Don't guess with your taxes. If the demand looks complex or you're unsure which remedy fits, let our experts review your PDF on WhatsApp.
Discuss with ExpertRectification Under Section 154
Rectification corrects a "mistake apparent from the record." It is not for fresh claims; it is for obvious, clear errors like TDS mismatches, calculation slips, or data entry bugs.
Important Timelines
| Event | Time Limit |
|---|---|
| Issue 143(1) | 9 months from end of FY of filing |
| 143(1)(a) Response | Usually 30 days |
| Rectification (154) | 4 years from end of FY of intimation |
| Revised Return | Up to 31st Dec of relevant AY |
Consequences of Ignoring a Demand
Ignoring a demand is the most expensive mistake. Interest builds up under Section 220, the department can adjust it against future refunds, and penalty actions can trigger. Silence reads as acceptance. Even if you disagree, respond and dispute it.
Notices Explained
| Section | Type | Purpose | Seriousness |
|---|---|---|---|
| 143(1) | Intimation | Routine Result | Low |
| 142(1) | Notice | Ask Details | Moderate |
| 143(2) | Notice | Scrutiny | High |
| 148A | Notice | Escaped Income | High |
How to Reduce Future 143(1) Issues
A bit of discipline at filing time heads off most demands. Here is the checklist I run before submitting any return:
- ✅ Reconcile: Pull Form 26AS and AIS against your records.
- ✅ Report All Income: Savings interest, FDs, dividends, capital gains—everything.
- ✅ Verify Deductions: Stick to statutory caps and keep supporting documents.
- ✅ TDS Accuracy: Match claimed TDS exactly with 26AS.
- ✅ Challan Precision: Check AY and challan details for self-assessment tax.
- ✅ Timing: E-verify promptly and file before the due date.
*Note: If your return comes back marked defective, refer to our guide on Section 139(9).
Conclusion
An intimation under Section 143(1) is a normal step in return processing, not a sign of trouble. Read it without panic, confirm the basics, and compare the two columns. Nil or refund? You're done. A demand? Find out why before choosing the right fix.
"Stay calm, reconcile before filing, and respond promptly. When in doubt, let a professional look at the PDF—the answer is always in the details."
Frequently Asked Questions (FAQs)
1. What is intimation under Section 143(1)?
It is the communication you receive after the Income Tax Department processes your return. It sets your filed figures beside the department's computation and tells you whether your return is accepted, a refund is due, or more tax is payable.
2. Is a Section 143(1) intimation a notice or a warning?
Neither. It is not a warning or a penalty notice, just a routine processing result. Every filed and processed return generates one.
3. Who issues the income tax intimation under Section 143(1)?
The Central Processing Centre (CPC) in Bengaluru. The process is fully automated.
4. When will I receive my 143(1) intimation?
After your return is processed. By law, the department can issue it within nine months from the end of the financial year in which you filed.
5. What if I never receive a 143(1) intimation?
Usually it means your return was accepted with nothing changed. The law treats your ITR-V acknowledgement as the deemed intimation.
6. What are the types of intimation under Section 143(1)?
Three types: No demand/no refund, Refund determined, and Tax demand raised.
7. Why did I receive a Section 143(1) demand notice?
Most demands trace back to data problems like TDS mismatch, unreported AIS income, or wrong deductions.
8. Why did I get a 143(1) refund intimation?
Because you paid more tax than your final liability. Common in cases of excess TDS or advance tax.
9. What is the password to open the 143(1) PDF?
Your PAN in lowercase followed by your date of birth in DDMMYYYY format (e.g., abcde1234f01011990).
10. Difference between final intimation and 143(1)(a) proposed adjustment?
A 143(1)(a) is a pre-final proposal giving you a chance to respond. Stay silent, and it becomes final.
11. How do I respond if I disagree with the demand?
Use the e-filing portal to submit a response, then file a rectification or revised return depending on who made the error.
12. Rectification vs Revised return?
Department's error? Rectify under 154. Your error? File a revised return.
13. Can I revise return after receiving 143(1)?
Yes, provided you are within the revision window (usually Dec 31 of the relevant AY).
14. What if I don't receive intimation for a long time?
Check your processing status on the e-filing portal to ensure it was accepted.
15. AIS shows income not in ITR—what now?
If you missed it, file a revised return. If AIS is incorrect, submit feedback on the portal.
16. How to fix TDS mismatch?
Ask your deductor to correct it in their TDS return, then file a rectification.
17. How long does refund take?
Typically 20–45 days, provided your bank account is pre-validated.
18. Do I always need to respond?
Only if there is a demand or a proposed adjustment. Nil/Refund? No action needed.
19. Ignoring a demand—what happens?
Interest under Sec 220, adjustment against future refunds, and potential penalty action.
20. Does 143(1) mean scrutiny?
No. Scrutiny is under 143(2) or 148A, which are entirely separate proceedings.