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tax · Last reviewed 2026-05-14

Intimation under Section 143(1)

An <strong>Intimation under Section 143(1)</strong> is an automated notice sent by the Income Tax Department to taxpayers after processing their Income Tax Return (ITR), highlighting discrepancies or adjustments made to the return without requiring manual scrutiny.

Understanding Intimation under Section 143(1)

<strong>Intimation under Section 143(1)</strong> is generated when the Income Tax Department processes an ITR and finds mismatches between the taxpayer’s reported income and the data available with the department (e.g., TDS, Form 26AS, or other sources). This notice is part of the department’s efforts to reduce errors and ensure tax compliance. The intimation may reflect corrections like disallowance of deductions, addition of unclaimed income, or adjustments to tax payable/refundable.

The notice is sent electronically to the taxpayer’s registered email and is available on the <em>e-filing portal</em> under the 'e-Proceedings' tab. Taxpayers must verify the intimation carefully, as it may result in a demand for additional tax or a refund. If the taxpayer agrees with the adjustments, no further action is required. However, if they disagree, they can file a response within 30 days to explain the discrepancy or provide supporting documents.

The Income Tax Department uses this system to streamline tax processing and reduce the need for manual assessments. It is particularly useful for taxpayers with straightforward tax profiles, as it ensures faster resolution of discrepancies. However, complex cases involving high income or significant discrepancies may still require scrutiny under Section 143(2) or Section 143(3).

Taxpayers should note that the intimation is not a final assessment but a preliminary communication. Ignoring it can lead to penalties or interest on unpaid tax. The department may also issue a notice under Section 245 for refund adjustments if the intimation results in a refund that is later adjusted against outstanding tax dues.

Why it matters

For Indian taxpayers, an <strong>Intimation under Section 143(1)</strong> matters because it ensures accuracy in tax filings and prevents disputes. It helps taxpayers correct errors proactively, avoid penalties, and receive refunds faster. Ignoring it can lead to unnecessary tax liabilities or loss of refunds.

Example

Numeric example

Rahul filed his ITR for FY 2023-24, reporting a total income of ₹12,00,000 and claiming a deduction of ₹1,50,000 under Section 80C. However, his Form 26AS showed TDS of ₹1,20,000, and the department disallowed ₹50,000 of his 80C claim due to insufficient proof. The intimation under Section 143(1) adjusted his taxable income to ₹12,50,000 and recalculated his tax liability as follows:

Tax on ₹12,50,000 (old slab): ₹1,87,500 Less: TDS ₹1,20,000 Tax payable: ₹67,500

Rahul received an intimation asking him to pay ₹67,500 within 30 days. He disagreed and uploaded the missing proof online, which the department accepted after verification.

Rohan, a 32-year-old software engineer in Hyderabad, filed his ITR for FY 2023-24 in July 2024. In October 2024, he received an <strong>Intimation under Section 143(1)</strong> via email, stating that his interest income from a fixed deposit (₹45,000) was not reported correctly. The intimation showed an additional tax liability of ₹13,500 (30% slab) plus interest under Section 234B. Rohan logged into the e-filing portal, checked his Form 26AS, and realized the bank had deducted TDS of ₹13,500 but he had not included the interest income in his ITR. He filed a revised return, and the intimation was corrected automatically.

How to use it

Taxpayers should regularly check their <em>e-filing portal</em> for any intimation under Section 143(1) after filing their ITR. If received, verify the details against Form 26AS, TDS certificates, and other documents. If the adjustments are correct, pay the tax due or accept the refund. If incorrect, respond online within 30 days with supporting evidence. Keep a record of the intimation and response for future reference.

For taxpayers who disagree with the intimation, the e-filing portal provides an option to submit a response. The department reviews the response and may issue a revised intimation or proceed with further scrutiny. Taxpayers can also track the status of their response on the portal.

Common mistakes

  • ·Ignoring the intimation and missing the 30-day response window
  • ·Not cross-checking Form 26AS with ITR before filing
  • ·Assuming the intimation is final and not responding to discrepancies
  • ·Failing to upload supporting documents when disputing the intimation
Intimation under Section 143(1) · last reviewed 2026-05-14
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