Section 143(3) & 270: Complete Guide to Income Tax Scrutiny Assessment

A Section 143(3) scrutiny assessment is a detailed examination of tax returns to verify income, deductions, exemptions, credits, and tax liabilities. As reported by The Times of India, this process typically begins with a notice under Section 143(2), followed by information requests, and concludes with an assessment order. A scrutiny notice does not automatically imply additional tax liability but indicates selection for detailed verification. The response should explain facts, reconcile figures, and support tax positions with relevant evidence, with the aim of clarifying what each document substantiates. According to the Central Board of Direct Taxes, if the Assessment Unit is satisfied with the reply, it will prepare an Income and Loss Determination Proposal (ILDP), which will be subjected to a computer-run Risk Management Strategy (RMS) tool. If there is no Review or if after Review by the Review Unit (RU) there are no modifications, then a final assessment order shall be received by the taxpayer.

Section 270 of the Income Tax Act provides a comprehensive framework for return processing and scrutiny assessment under the Income-tax Act, 2025. According to recent reports, Section 270(1) deals with processing, Section 270(2) allows responses to proposed adjustments, and Section 270(4) sets intimation limits. For scrutiny, Section 270(8) authorizes notices, Section 270(9) sets notice limits, and Section 270(10) provides for written assessment orders. A general rule requires orders under Section 270 to be passed within one year from the end of the financial year succeeding the relevant tax year. For Tax Year 2026-27, this ordinarily results in March 31, 2029, subject to applicable exclusions and extensions. Failure to comply with notice terms may lead to best judgment assessments under Section 271, where the Assessing Officer determines total income using relevant material.

Recent tribunal decisions highlight the importance of proper notice procedures in scrutiny assessments. As reported by The Times of India, the Tribunal held that an assessment framed without a valid notice under Section 143(2) by the jurisdictional officer is void. Jurisdictional compliance is mandatory for all assessment proceedings, and assessments conducted without proper notice procedures may be set aside. This emphasizes the critical role of proper notice issuance and response mechanisms in maintaining the integrity of the faceless assessment framework. Under Section 270, scrutiny may involve mismatches between returns and tax information, substantial refund or loss claims, unusual deductions or expenses, or inconsistency in turnover or tax credits.

Taxpayers must understand the scope of notices and prepare well-crafted electronic submissions that work like in-person explanations, as reported by The Times of India. The first step involves decoding detailed notices by checking assessment year, response deadlines, scope of scrutiny, and information sought. Most queries relate to tax return disclosures, third-party information such as AIS and Form 26AS, specific transactions, and supporting evidence. Responses should build around facts, law, and evidence, with clear explanations of tax treatment and reconciliations that agree with return totals. According to the Central Board of Direct Taxes, replies to notices under Sections 143(2) and 142(1), supporting documents, adjournment requests and replies to Show Cause Notices are submitted electronically through the e-filing portal only. Under Section 270, responses must connect each explanation with supporting evidence and be answered within the prescribed deadline, with taxpayers having 30 days from the issue of communication to respond.

Many notices arise from differences between tax returns and information reported by banks, employers, brokers, or other institutions in AIS and Form 26AS. According to The Times of India, such differences may reflect omissions, duplications, timing issues, or transactions requiring explanation. AIS may show gross sale values while taxable amounts are capital gains after adjustments. Taxpayers should identify mismatch sources, reconcile with records, determine correct tax treatment, and explain differences before treating them as taxable income. The practical rule involves investigating mismatches before assuming they represent taxable amounts. As per the Central Board of Direct Taxes, if the Assessment Unit is not satisfied with the reply, it shall issue a Show Cause Notice (SCN) to the taxpayer before proposing any variation prejudicial to their interest in the assessment of their income. The SCN will clearly state the points of proposed variation, and the taxpayer needs to file their reply to the SCN within the due date.

After completion of assessment, all digital records are transferred to the Jurisdictional Assessing Officer (JAO) who would be responsible for post-assessment work. According to the Central Board of Direct Taxes, if the taxpayer is not satisfied with the assessment made by the Assessment Unit, they can appeal against the assessment order by filing online appeal through the National Faceless Appeal Centre (NFAC) or file an application for rectification with their Jurisdictional Assessing Officer for rectifying any mistake apparent from the records. The framework emphasizes timely electronic compliance, updated contact details and reduced physical interaction with tax authorities. There is no requirement to file physical copies of replies in any Income-tax office, and taxpayers are not required to attend before any income-tax authority in connection with assessment proceedings. If personal hearing is required, this would be conducted through video conferencing only. Under Section 270, taxpayers may apply to the Joint Commissioner while assessment is pending, with the Joint Commissioner's directions being binding on the Assessing Officer.