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Income Tax Compliance Guide • Updated 2026

Income Tax Intimation Under Section 143(1)

Meaning, Password, Refunds, and Demands

Meaning
Password
Refunds
Demands

Quick answer: A Section 143(1) intimation is an automated summary the Income Tax Department's CPC sends after processing your ITR. It shows one of three outcomes — no demand no refund, a refund, or a tax demand. The PDF is password-protected, and the password is your PAN in lowercase + date of birth in DDMMYYYY format (for example, abcde1234f01041982).

🔑 Password to Open 143(1) PDF

Format: PAN (lowercase) + DOB (DDMMYYYY)

Example: PAN ABCDE1234F + DOB 01/04/1982 → abcde1234f01041982

No spaces. No slashes. No symbols.

Got an intimation and felt a flash of panic? You're not alone. Most people mistake it for a scrutiny notice or get stuck on the password screen. The truth is simpler: an income tax intimation under Section 143(1) is usually routine, and reading it correctly takes only a few minutes.

In simple words: it's the department's first reply after it checks your return. That reply lands as one of three results:

  • Return accepted (no demand, no refund)
  • Refund due
  • Tax demand raised

This guide walks you through the meaning, the password, the three outcomes, and exactly what to do next — fast.

Stuck with a complex Tax Demand?

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Understanding Section 143(1) Intimation: Key Insights and Processes

What Is Income Tax Intimation Under Section 143(1)?

A Section 143(1) intimation is a communication from the Centralized Processing Centre (CPC) after it processes your income tax return. Think of it as the department's first official response to the return you filed.

During this CPC intimation process, an automated system compares your return against the records it holds:

  • income you reported
  • TDS details
  • tax paid through challans
  • information from AIS (Annual Information Statement)
  • data from Form 26AS

If everything lines up, your return is accepted as filed. If it doesn't, the difference shows up as an adjustment.

How CPC Processes Your Return

Every intimation runs on three simple columns: figures as filed by you → figures as computed by CPC → the difference. Here's what CPC checks, item by item:

Comparison Item What It Checks
Total incomeIncome you declared vs recomputed by CPC
Deductions (80C, 80D, etc.)Amount claimed vs allowed under rules
Exempt incomeItems excluded vs how CPC treats them
TDS / TCS creditCredit claimed vs credit in records
Advance / self-assessment taxPayments declared vs challan records
Interest and late feeSystem-computed charges
Net tax payable/refundableThe final bottom-line difference

Quick recap: the intimation is a routine processing summary, not a sign you've done anything wrong.

Is Section 143(1) an Intimation or a Notice?

This is where confusion starts. A Section 143(1) intimation is mostly informational. In many cases, you don't need to act — just review it and save a copy. A real tax notice (under Sections 142(1), 143(2), or 148) comes from a tax officer and demands a formal response.

  • 143(1) = automated processing communication.
  • 143(2) = scrutiny notice requiring a formal response.

Why Did You Receive a Section 143(1) Intimation?

The department issues it to keep things transparent. Common reasons include:

  • confirming your ITR was processed
  • showing whether your tax computation matches department records
  • reporting a refund if you paid excess tax
  • raising a demand if tax is still payable
  • flagging adjustments from errors or mismatches

It's a transparency step, not a red flag.

The Three Outcomes Under Section 143(1)

Every intimation ends with one of these three results:

Outcome What It Means Action Needed
No demand no refund Your return matched CPC records None — just save it
Refund under 143(1) You paid more tax than owed Track refund in bank account
Tax demand under 143(1) More tax is payable Review, then pay or dispute

1. No Demand and No Refund

Your return was processed and accepted as filed. Nothing to pay, nothing to receive. Save the document for your records and move on.

2. Refund Under Section 143(1)

The system confirmed you paid excess tax. A refund under Section 143(1) gets credited to your pre-validated bank account after processing. If the intimation shows a refund but the money doesn't land within a few weeks, check your refund status on the e-filing portal and confirm your bank account is validated.

3. Tax Demand Under 143(1)

The department believes more tax is payable. A tax demand under 143(1) can arise from a mismatch, a wrong claim, omitted income, or a tax credit issue.

Important: A demand doesn't always mean the department is right. Always compare it with your filed return before paying.

Quick recap: match the outcome to the action — save, track, or review.

How to Download Section 143(1) Intimation

You can grab it directly from the e-filing portal. Follow these steps:

01

Log in to the income tax e-filing portal.

02

Go to e-File → Income Tax Returns → View Filed Returns.

03

Select the relevant Assessment Year.

04

Click View Details and open the processed return.

05

Download the intimation order PDF.

Pro-Tip: CPC also emails the file to your registered address. Can't find the email? Check your spam and promotions folders, then download directly from the portal. Either way, it arrives as a password-protected PDF.

Password to Open 143(1) PDF (With Examples)

The intimation is locked for your privacy. The format is fixed and simple once you know it.

Section 143(1) Password Format

PAN (lowercase) + DOB (DDMMYYYY)

No spaces, slashes, or symbols.

Password Examples

PAN Date of Birth Password
ABCDE1234F01/04/1982abcde1234f01041982
PQRST5678K15/09/1990pqrst5678k15091990

Note for companies and firms: use PAN in lowercase + date of incorporation in DDMMYYYY format.

How to Open 143(1) PDF

  • Download the PDF from your email or the e-filing portal.
  • Open it in any standard PDF reader.
  • When prompted, type your PAN in lowercase followed by your date of birth in DDMMYYYY.
  • Press enter — the document opens.

143(1) PDF Password Not Working?

Most failures come down to small slip-ups. Run through this checklist:

  • You typed PAN in uppercase instead of lowercase
  • You used the wrong date of birth (use the one on your PAN records)
  • An extra space got copied into the field
  • The date format is wrong — it must be DDMMYYYY, not DD/MM/YYYY
  • The file is corrupted or your PDF reader is outdated

Still stuck? Download the file again and open it with an updated viewer.

Stuck with a complex Tax Demand?

Don't stress. Get expert help from Easy Return Team to resolve your intimation issues quickly.

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How to Read Section 143(1) Intimation

Opening the PDF is only half the job. Reading it correctly is what saves you from paying a wrong demand or missing a genuine one. The intimation places your numbers right next to the department's, so you can spot any gap at a glance.

1. Confirm Taxpayer and Return Details

Start at the top. Confirm your name, PAN, assessment year, and acknowledgement number match your filed return. A wrong assessment year or acknowledgement number means you may be looking at the wrong document.

2. Work Through the Comparison Columns

This is the heart of the intimation. Read it line by line:

Line Item What to Check
Gross total incomeDoes the income CPC considered match yours?
Deductions (80C, 80D, etc.)Were your claimed deductions allowed?
Tax payableIs the tax computed on the accepted income?
InterestAny interest for late filing or short payment?
Refund or demandDoes the final result tie back to the differences?

3. A Mini Worked Example

Say you filed a return showing: Total income: ₹8,00,000 | TDS claimed: ₹55,000

CPC's computation shows:

  • Total income: ₹8,40,000 (Added ₹40,000 FD interest from AIS)
  • TDS allowed: ₹55,000

The extra ₹40,000 raises your tax, so the intimation shows a tax demand. Now you know the demand didn't come from a TDS issue — it came from income you missed. That single insight tells you whether to pay, rectify, or revise.

Key takeaway: Never read only the final figure. Trace it back through the columns so you understand why the number changed.

Common Reasons for Tax Demand Under Section 143(1)

A demand usually appears when your return doesn't match the department's records. Some are valid; others come from simple errors.

  • TDS mismatch: TDS claimed in your ITR doesn't match Form 26AS, or the deductor used the wrong TAN.
  • Form 26AS mismatch: Tax credits don't line up, often due to wrong challan details.
  • AIS mismatch: The AIS shows income (FD interest, dividends, securities) you didn't report.
  • Wrong deduction claims: Deductions exceeding limits or unsupported by records get disallowed.
  • Missing income: Claiming TDS but forgetting the related income (common with FD interest or freelance receipts).
  • Incorrect challan details: Wrong major head, minor head, or challan number stops the credit from matching.
  • Capital gains errors: Reporting short-term gains as long-term (or vice-versa) changes the tax.
  • Interest differences: CPC may compute interest differently for late filing or short payment.

Mismatch Diagnosis: Where to Check What

The trick is knowing which document holds your answer. Use this table to diagnose the issue before you respond:

Mismatch Type Where to Check What to Look For
TDS creditForm 26ASIf deductor reported TDS correctly under your PAN
Extra incomeAISInterest, dividends, or securities you missed
OverviewTISA consolidated view to compare against ITR
Payment mismatch26AS & ChallansWrong AY, head, or challan number
DeductionsITR vs ProofsIf claim exceeds limits or lacks support

A quick rule of thumb:

  • Tax credit problem? Go to Form 26AS first.
  • Income gap? Check your AIS.
  • Need a fast overview? Glance at your TIS.

Verify the document before you accept any demand. AIS and Form 26AS can occasionally carry duplicate or incomplete entries, so cross-check against your own records.

What to Do If There Is a Demand

A tax demand under 143(1) isn't always final, and it isn't always correct. Your response depends entirely on whether the department's numbers match yours.

Step 1: Confirm Whether the Demand Is Right

Pull out your filed ITR, Form 26AS, AIS, TIS, Form 16/16A, challans, and deduction proofs. Compare them against the intimation, line by line. Only then can you decide your response.

Step 2: Choose Your Response

There are three ways to respond on the e-filing portal:

  • Agree: The demand is correct. Pay it using Challan 280, type (400) Tax on Regular Assessment. Avoid code 100 or 300, otherwise, the payment won't map correctly.
  • Disagree fully: The demand is wrong. Submit your response with a clear reason and supporting proof, such as missing TDS credit or an unmatched challan.
  • Disagree partly: Part of the demand is valid. Pay the agreed portion and contest the rest with documentation.

Step 3: Save Everything

Download the challan receipt and note the BSR code, challan serial number, and date. Keep every document and acknowledgement in one place.

Don't Ignore a Valid Demand

Ignoring a genuine demand doesn't make it disappear—it grows:

  • The amount remains as an outstanding demand.
  • Interest may continue to accrue.
  • Future refunds may be adjusted against the unpaid demand.
  • Continued silence can trigger recovery action.

Important: You usually get 30 days to respond. Even a small demand deserves a prompt review.

Stuck with a complex Tax Demand?

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Rectification Under Section 154 vs Revised Return

These two fixes are not the same, and choosing the wrong one delays resolution. Here is how to decide which path to take:

Use Rectification (Section 154) Use a Revised Return
Mistake is in CPC processing Mistake is in your original ITR
Tax credit or challan mismatch Missed income or wrong deduction claimed
Incorrect carry-forward figure Revision window still open
Filed directly on the e-filing portal Resubmit before formal assessment

Two Quick Examples

Rectification: CPC didn't credit your TDS, even though Form 26AS shows it. The mistake is in the processing stage.

Revised return: You forgot to report bank interest in your original ITR. The mistake started with your own filing.

Simple Rule:

Use rectification for processing or record errors, and a revised return when the mistake began in your original filing and the legal window is still open.

Section 143(1) Intimation vs Notice or Scrutiny

It helps to keep these two apart to avoid unnecessary worry. Here is the quick difference:

Section 143(1) Intimation Section 143(2) Scrutiny Notice
Automated, generated by CPC Issued by a tax officer
Mainly informational Requires a formal response
Shows refund, demand, or acceptance Detailed examination of your return
Often no action needed Mandatory and more serious

Bottom line: A 143(1) intimation is routine. A 143(2) notice is scrutiny—handle it carefully, ideally with a CA.

FAQs on Income Tax Intimation Under Section 143(1)

What is Section 143(1) intimation?

It's an automated summary from the Income Tax Department's CPC, sent after your ITR is processed. It compares your filed figures with the department's computation and shows whether your return is accepted, a refund is due, or a demand is raised.

Is Section 143(1) a notice?

Not in the usual sense. A 143(1) intimation is mostly informational and often needs no action. A real notice — like one under Section 143(2) — comes from a tax officer and demands a formal response.

How to open 143(1) PDF?

Download it from your email or the e-filing portal, open it in any PDF reader, and enter your PAN in lowercase followed by your date of birth in DDMMYYYY format, with no spaces or symbols.

What does no demand no refund mean?

It means your return matched CPC's records. There's no extra tax to pay and no refund due. Just save the document.

What does refund under Section 143(1) mean?

The department found you paid more tax than you owed. The refund is credited to your pre-validated bank account after processing.

What does tax demand under 143(1) mean?

CPC found that additional tax may be payable based on its processing. Compare it with your records before paying, since the demand isn't always correct.

How long does Section 143(1) take?

Most taxpayers receive it within a few weeks of filing. The outer statutory limit is 9 months from the end of the financial year in which you filed.

What should I do for a TDS mismatch?

Compare your ITR with Form 26AS, AIS, and Form 16. If the deductor reported the wrong amount or used the wrong PAN, the mismatch is genuine — choose rectification or a revised return depending on where the error began.

Can I ignore a Section 143(1) intimation?

No. Even when no action is needed, review it and keep a copy. An unpaid valid demand accrues interest and can be adjusted against future refunds.

Conclusion

A Section 143(1) intimation is one of the most important documents you receive after filing. It tells you whether your return was accepted, whether a refund is coming, or whether a demand was raised — and it helps you catch TDS, AIS, and Form 26AS mismatches early.

The process is simple: download the intimation, open the PDF with PAN in lowercase + DOB in DDMMYYYY, and read the computation line by line. If the result is correct, act on it. If it isn't, compare it with your records and pick the right fix — payment, rectification under Section 154, or a revised return.

Your Next Step

Log in to the e-filing portal, download your latest intimation, and verify each figure against your ITR today. Catching a mismatch early saves you interest, disputes, and stress.

Need Help in Complex Tax Demand?

Don't stress. Get expert help from Easy Return Team to resolve your intimation issues quickly.

Discuss with Expert
{ "@context": "https://schema.org/", "@type": "Person", "name": "CA Sagar Batra", "jobTitle": "Chartered Accountant", "description": "CA Sagar Batra brings 10+ years of extensive experience in taxation, income tax filing, and financial advisory, helping taxpayers navigate complex tax landscapes with ease.", "url": "https://www.easyreturn.co.in/" }
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About the Author: CA Sagar Batra

With 10+ years of experience in taxation and financial planning, CA Sagar Batra specializes in simplifying complex tax matters. He is dedicated to helping individuals and businesses stay compliant while optimizing their tax returns.