Section 143(1)(a) Notice – Income Tax Intimation & Adjustment Response Services

Expert Assistance for Responding to Section 143(1)(a) Adjustments and Disallowances in ITR Processing

Under Section 143(1)(a) of the Income Tax Act, 1961, the Centralised Processing Centre (CPC) is empowered to make prima facie adjustments to an income tax return during automated processing — and issue an intimation under Section 143(1) proposing the resultant addition or disallowance. These adjustments are made without a detailed inquiry and are limited to specific categories: arithmetical errors in the return; incorrect claims that are prima facie disallowable based on information in the return itself; disallowances of losses where no return was filed for the relevant year; disallowances of expenditure claimed under sections requiring filing of audit reports; and any addition based on inconsistency between the ITR and audit report or Form 26AS/AIS data.

A Section 143(1)(a) intimation proposing adjustments must not be confused with a scrutiny notice — it is far more limited in scope, but the taxpayer must respond within 30 days or the proposed adjustment is confirmed automatically, generating a tax demand. Our professionals provide prompt and accurate responses, connecting with our notice reply and assessment support, scrutiny assessment services, and income tax advisory.

Our Services

Intimation Analysis

Detailed review of the Section 143(1)(a) intimation to identify the specific adjustment proposed — whether arithmetic error, prima facie disallowance, or AIS/26AS mismatch — and determine the most effective response strategy.

Online Response Filing

Filing of a timely response to the intimation through the income tax e-filing portal within 30 days — accepting, disputing, or partially disputing the proposed adjustment with supporting documentation.

Agreement or Disagreement

Where the adjustment is correct, advising on acceptance and payment of demand. Where incorrect, preparing a clear factual and legal response demonstrating why the proposed adjustment should not be made.

Document Compilation

Compiling bank statements, Form 26AS, AIS, audit reports, investment proofs, and other documents to substantiate the response and rebut the CPC's proposed adjustment with evidence.

AIS/26AS Reconciliation

Complete reconciliation of Form 26AS and Annual Information Statement data with ITR disclosures to identify the source of any mismatch triggering the 143(1)(a) adjustment and resolving it accurately.

Post-Response Advisory

If the CPC accepts the response, tracking the outcome and revised demand. If not, advising on further options including rectification under Section 154 or appeal under Section 246A before CIT(A).

Frequently Asked Questions

What types of adjustments can CPC make under Section 143(1)(a)?

Section 143(1)(a) allows CPC to make the following prima facie adjustments: (i) arithmetical errors in the return; (ii) incorrect claims apparent from the return itself — such as deductions claimed under sections requiring audit reports where no report was filed; (iii) disallowances of loss claims where the loss return for that year was filed belatedly; (iv) disallowances of expenditure indicated in the audit report but not debited to profit and loss; and (v) additions based on data from Form 26AS, AIS, or TIS that are inconsistent with the return. No other adjustments are permitted at the 143(1) stage — the AO must issue a Section 143(2) notice to conduct a scrutiny assessment for other issues.

How long do I have to respond to a Section 143(1)(a) intimation?

The taxpayer has 30 days from the date of service of the intimation to file a response online through the income tax e-filing portal. If no response is filed within 30 days, the proposed adjustment is automatically confirmed, and a final intimation with the resulting demand (if any) is issued. The 30-day deadline is strictly enforced — extensions are not routinely granted. After the response is filed, the CPC processes it and issues a revised intimation. If the response is accepted, the proposed demand is withdrawn. If rejected, the adjustment is confirmed and can be challenged by rectification or appeal.

Can I appeal against a Section 143(1)(a) adjustment?

Yes. If the CPC's proposed adjustment is confirmed and you disagree with it, you can file a rectification application under Section 154 if the adjustment is based on a mistake apparent from the record. If the issue is more substantive, you can file an appeal before CIT(A) under Section 246A within 30 days of receiving the final demand notice. Alternatively, if the adjustment relates to a mismatch in Form 26AS or AIS data, you should first update the information in AIS, communicate with the relevant deductor, and then seek rectification of the intimation.

What is the difference between Section 143(1) and Section 143(3)?

Section 143(1) is an automated intimation from the CPC after computerised processing of the return — limited to specific prima facie adjustments without any direct AO involvement or hearing. Section 143(3) is a scrutiny assessment conducted by the Assessing Officer after issuing a Section 143(2) notice — involving detailed examination of books, documents, and evidence. Section 143(3) can result in much larger additions and demands. The two are sequential — the CPC processes all returns under Section 143(1), and a small percentage are then selected for scrutiny under Section 143(3).

What should I check before responding to a Section 143(1)(a) intimation?

Before responding, verify: (1) whether the adjustment is arithmetically correct — many adjustments have calculation errors; (2) whether the document cited (audit report, Form 26AS, AIS) correctly reflects the relevant transaction; (3) whether TDS credits in Form 26AS match what you claimed in the ITR — if not, identify the discrepancy; (4) whether any deduction claimed requires an audit report that was not filed; (5) whether the adjustment is within the permitted scope of Section 143(1)(a) — if CPC has made an adjustment outside its permitted scope, it can be challenged. A professional review before responding prevents incorrect agreements and protects your rights.

Received a Section 143(1)(a) Intimation? Respond Within 30 Days.

Our tax professionals will analyse the proposed adjustment and file a precise, well-supported response on time.

F.A.Q.

What is anti-bribery and corruption risk assessment?

It is the process of identifying and managing risks related to bribery, corruption, and unethical practices in a business.

Why is anti-bribery compliance important?

It helps prevent legal penalties, protects reputation, and ensures ethical business operations.

Which laws govern anti-bribery in India?

The Prevention of Corruption Act, 1988 and other regulatory frameworks govern anti-bribery compliance.

What are common corruption risks in businesses?

Unethical payments, vendor kickbacks, fraud, and lack of internal controls.

How can companies reduce bribery risks?

By implementing strong policies, conducting due diligence, and monitoring transactions.

What is third-party due diligence?

It involves evaluating vendors and partners to identify potential compliance and corruption risks.