Notice under Section 143(1)


The Notice under Section 143(1) of the Income Tax Act is an intimation sent to the taxpayer by the Income Tax Department. It’s one of the initial steps in the assessment process after a tax return is filed. This notice serves as a summary or intimation, not a demand notice. It has different implications depending on what the Income Tax Department has determined about your return. Here’s a detailed breakdown:

Overview of Section 143(1) – Intimation

Section 143(1) of the Income Tax Act is primarily about the intimation sent by the Income Tax Department after processing the Income Tax Return submitted by a taxpayer. This intimation is a basic assessment of the return and highlights the initial processing outcomes. Here’s a detailed overview:

Purpose of Section 143(1) Intimation

  • Automatic Processing: This section facilitates the automatic processing of the taxpayer’s income tax return. It does not involve detailed scrutiny but checks for essential arithmetic accuracy, internal consistency, tax calculation, and verification against records available with the department.
  • Notification: The taxpayer is notified about the outcome of the processing, including any adjustments made by the department to the income, deductions, tax, or claims.

Contents of the Intimation

    • Acknowledgement of Return Filed: The return has been received and processed.
    • Details of Taxpayer and Assessment Year: This includes the taxpayer’s name, PAN (Permanent Account Number), and the assessment year for which the return is processed.
  • Income Details:
      • Reported Income: Summary of the income as reported by the taxpayer in the filed return.
      • Computed Income: The department calculates income based on their processing, which may adjust for any discrepancies or mathematical errors in the taxpayer’s reported data.
  • Deductions and Exemptions:
      • Reported Deductions: Deductions claimed in the tax return.
      • Allowed Deductions: Deductions that have been accepted upon processing.
  • Tax Calculation:
      • Tax on Total Income: The tax computed on the total income after considering applicable deductions and exemptions.
      • Rebate and Relief: Details of any tax rebate (like under Section 87A) or relief considered during processing.
  • Credits:
      • TDS (Tax Deducted at Source): TDS as reported by the taxpayer and as available in the form 26AS.
      • TCS (Tax Collected at Source): Any tax collected at source.
      • Advance Tax: Payments made by the taxpayer are considered advance tax.
      • Self-Assessment Tax: Any tax paid by the taxpayer when filing the return.
  • Tax and Interest Payable or Refundable:
      • Net Tax Payable: Any additional tax due after considering taxes already paid and tax calculated.
      • Interest Payable: Details of any interest payable under sections like 234A (for late filing), 234B (for default in payment of advance tax), and 234C (for deferment of advance tax).
      • Refund: Refund due to the taxpayer, if any, after all calculations.
  • Summary of Adjustments:
      • Arithmetical Errors: Corrections were made to any arithmetic errors identified during processing.
      • Incorrect Claims: Adjustments for any wrong claims noted in the return (such as under or over-reported income or wrongly claimed deductions).
  • Communication of Decision:
    • Instructions on how to pay any additional tax due or information on how the refund will be processed.
    • Directions for filing a rectification request if the taxpayer disagrees with the intimation.

Mechanism of Intimation

    • Automated Process: The processing and issuance of the intimation are primarily automated, using the Income Tax Department’s Central Processing Centre (CPC) software.
    • Time Frame: The intimation must be sent within one year from the end of the financial year in which the return is filed.
  • Process of sending Intimation
      • Filing of Return: The taxpayer files the income tax return online through the income tax department’s e-filing portal. This return includes details of income, deductions, credits, and taxes paid.
      • Data Processing: Once the return is filed, it undergoes automated processing at the Central Processing Center (CPC) of the Income Tax Department. This processing includes:
        • Validation of Data: Checking for any mathematical inaccuracies in the income, deductions, and tax liability computation.
        • Verification of Tax Credits: Cross-verifying the TDS (Tax Deducted at Source), TCS (Tax Collected at Source), advance tax, and self-assessment tax payments against the data in Form 26AS and other relevant records.
      • Identification of Discrepancies: The system automatically identifies discrepancies such as mismatches in tax credits, arithmetic mistakes, and deviation from statutory provisions in the claim of deductions and exemptions.
      • Adjustments Made: Based on the processing rules, automatic adjustments are made for any apparent errors or inconsistencies. These can include:
        • Correcting arithmetic errors directly on the system.
        • Disallowing incorrectly claimed deductions or exemptions that do not comply with legal stipulations.
      • Generation of Intimation: After processing, an intimation under Section 143(1) is generated, which can be:
        • An intimation where no demand is raised and no refund is due.
        • An intimation where a demand is raised detailing additional tax to be paid.
        • An intimation indicating a refund, specifying the amount to be refunded to the taxpayer.
      • Dispatch of Intimation: The intimation is sent to the taxpayer electronically via the email address registered on the e-filing portal. A copy of the intimation is also available for download from the taxpayer’s account on the portal.
  • Response from Taxpayer:
      • If the taxpayer agrees with the intimation, they can pay the additional demand or await the refund.
      • If the intimation contains discrepancies or disagreements, the taxpayer can file a rectification request under Section 154.

Responding to a Section 143(1) Intimation

  • Review and Respond: Carefully review the intimation. If there are discrepancies, they should be addressed either by paying the additional demand or by filing a rectification return.
  • Payment of Demand: If the intimation shows tax due, ensure it is paid within the notice specified to avoid additional interest and penalties.
  • Rectification Request: If you disagree with the adjustments made in the intimation, you can file a rectification request under Section 154 of the Income Tax Act.
  • Consultation: Consulting a tax professional for detailed advice and to ensure proper compliance is often advisable.


  • Compliance Checkpoint: It serves as an early compliance checkpoint for taxpayers, helping to ensure that their filings meet the department’s expectations and that any tax dues are settled promptly.
  • Rectification Opportunity: Provides a platform for rectifying any inadvertent errors in the original filing without a more extensive audit or scrutiny.

Section 143(1) intimation thus acts as a preliminary but crucial step in the tax assessment process, ensuring compliance and correctness in tax reporting and payments.

Examples of Section 143(1) Intimation

  • Example: A taxpayer files a return claiming a total income of ₹500,000 with a TDS of ₹50,000. The department’s records, however, show a TDS of ₹45,000. The taxpayer will receive a Section 143(1) intimation reflecting the mismatch and asking to pay the deficit or file a revised return if it was an error.

Prosecution and Penalties

  • Prosecution: Section 143(1) does not contain direct prosecution clauses, as it is primarily an intimation, not an accusatory notice.
  • Penalties: If discrepancies or demands made in the intimation under Section 143(1) are not addressed, penalties may be imposed for non-compliance, such as under Section 270A (for underreporting and misreporting of income).

References in the Act

  • Section 143(1) Deals with the initial processing of the income tax return and outlines the mechanism for intimation.
  • Section 154: Provides for rectification of mistakes apparent from the record.
  • Section 270A: Specifies penalties for underreporting or misreporting of income.


Receiving a Section 143(1) intimation is common, but it typically only indicates a severe problem if there are significant discrepancies in the return. It is crucial to promptly address any points raised in this intimation to avoid further implications. This notice is a correction and reconciliation mechanism between the taxpayer’s reported data and the department’s records.

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