Taxes & Finance

How to Reply to Income Tax Notice 143(1)

Understand and respond to an Income Tax Intimation under Section 143(1). Covers demand notices, refund adjustments, no-action-needed cases, and how to file...

By HowDoI India TeamLast updated: 12 April 2026Reviewed: 26 April 2026

After you file your Income Tax Return, the CPC (Central Processing Centre) at Bengaluru automatically processes it and sends an intimation under Section 143(1). This intimation compares your self-reported figures with the data CPC has from Form 26AS, AIS, and other sources. It is not a penalty notice. It is the tax department's way of telling you whether your filing matches their records.

Types of 143(1) Intimations

TypeWhat It MeansAction Needed
No demand, no refundYour ITR matches CPC's calculations. Tax paid equals tax owed.No action needed. Keep for records.
Refund determinedCPC agrees you overpaid tax. A refund will be processed.Verify the refund amount is correct.
Demand raisedCPC believes you owe additional tax.You must either pay the demand or file a rectification/response.
Refund adjustedA previous refund was reduced to offset a past demand or penalty.Verify the adjustment. If incorrect, file a rectification.

Step 1: Read the intimation carefully

  1. Log in to the Income Tax e-Filing portal.
  2. Go to e-File > Income Tax Returns > View Filed Returns.
  3. Find the relevant Assessment Year and click on the 143(1) intimation or download it from the portal.
  4. The intimation shows a side-by-side comparison of:
    • Your figures (as filed in the ITR)
    • CPC's figures (as computed by CPC)
    • Difference (the adjustment made)

TIP

Download your Form 26AS and Annual Information Statement (AIS) from the portal and compare them with the intimation. This will help you understand exactly where CPC's figures differ from yours.

Step 2: Understand the adjustment

Common reasons CPC adjusts your tax calculation:

CPC AdjustmentLikely Cause
TDS amount reducedTDS in your ITR does not match Form 26AS. You may have claimed TDS that the deductor did not report.
Deduction disallowedA deduction claim (e.g., 80C, 80D) may exceed the statutory limit or lack supporting evidence in the system.
Income increasedAdditional income sources visible in AIS (FD interest, capital gains, dividend) were not declared.
Interest u/s 234A/B/C addedYou filed late, underpaid advance tax, or underpaid total tax for the year.
Tax computed at higher rateCPC may have applied a different tax regime than what you selected.

Step 3A: If there is no demand or a refund

If the intimation shows:

  • No demand, no refund: No action needed. File the intimation for your records.
  • Refund due: The refund will be processed to your bank account linked on the e-Filing portal. Track it using our ITR refund status guide. If the refund amount is less than expected, compare the CPC figures to find the adjustment.

Step 3B: If there is a tax demand

If CPC has raised a demand (you owe additional tax):

Option 1: Agree and pay

If CPC's calculation is correct and you genuinely owe more tax:

  1. Go to Pending Actions > Response to Outstanding Demand on the portal.
  2. Click Pay Now and pay the demanded amount through challan (e-Pay Tax on the portal).
  3. After payment, submit a response confirming payment.

Option 2: Disagree - File a rectification

If CPC's calculation is wrong (e.g., they missed your TDS, disallowed a valid deduction):

  1. Go to Services > Rectification on the portal.
  2. Select Section 154 and the relevant Assessment Year.
  3. Choose the type: Reprocess the Return (if CPC just needs to re-check) or Submit Corrected Return (if you need to fix data in your ITR).
  4. Upload the corrected data or submit the rectification request.
  5. e-Verify with Aadhaar OTP or other method.

Documents to keep handy

0 of 7 ready · saved on this device only

Option 3: Partially agree

If you agree with part of the demand but not all:

  1. Pay the amount you agree with.
  2. File a rectification for the portion you disagree with.
  3. Submit a response on the portal explaining your position.

WARNING

Do not ignore a demand notice. If you take no action within 30 days, the outstanding demand may be adjusted against future refunds, and interest under Section 220(2) at 1% per month may be charged on the unpaid amount.

Step 4: Track the outcome

After filing a rectification or paying the demand:

  1. Go to Services > Rectification > Rectification Status to track your request.
  2. CPC typically processes rectifications within 30 to 60 days.
  3. If the rectification is accepted, you will receive a revised intimation and any excess demand will be waived or refunded.

Interest Components in 143(1)

The intimation may include interest charges. Understanding them helps:

Interest SectionWhen It AppliesRate
234A (late filing)You filed ITR after the due date (July 31st)1% per month on outstanding tax
234B (advance tax default)You did not pay advance tax when required (tax liability > Rs 10,000)1% per month
234C (advance tax deferment)You paid advance tax but not in the required quarterly instalments1% per month

Common Problems

ProblemSolution
Demand raised for TDS mismatchCheck if your employer/bank actually deposited the TDS. If they did, ask them for the TDS certificate and verify it matches Form 26AS. If there is a mismatch, ask the deductor to file a correction.
80C deduction disallowedCPC may lack digital evidence. File a rectification with proof of investment.
Cannot find 143(1) on portalCheck e-File > Income Tax Returns > View Filed Returns and look for the download link. It may also be in your email.
Demand from several years agoOld demands can still be raised. Respond regardless of the delay. If the demand is time-barred, consult a CA.

Need more help?

For more information, check out our Tax & Finance guides or try our income tax calculator. See also the Tax Season hub for related guides.

Was this guide helpful?

Frequently asked questions

Is a 143(1) notice a penalty?
No. Section 143(1) is an automated intimation from CPC Bengaluru after processing your ITR. It can confirm your filing, show a refund due, or indicate additional tax to pay. It is not a penalty notice.
How quickly do I need to respond?
If it shows a demand, you should respond within 30 days. For refund adjustments or no-demand cases, no response is needed but you should verify the calculations.
Can CPC change my tax calculation?
Yes. CPC can make adjustments for arithmetical errors, incorrect claims, disallowed deductions, or TDS mismatches found during automated processing.
What if I disagree with the demand?
You can file a rectification request under Section 154 if there is a factual error, or respond to the demand explaining why you disagree. Do not ignore the demand.
Will I get interest on delayed refunds?
Yes. Under Section 244A, you are entitled to interest at 0.5% per month on delayed refunds from April of the assessment year until the date of refund.
Recommended Site

Want help filing your return?

ClearTax can review forms and file when AIS mismatches or multiple Form 16s get messy.

Need help with tax numbers?

Use our free Income Tax or LTCG calculators to estimate what you owe before you file.