Penalties under sections 270A and 271AAC(1) become unsustainable where the quantum additions supporting under-reported or unexplained income are wholly deleted and recomputation leaves no tax liability. Their basis is the determination of such income and the resulting tax consequence; once that foundation ceases, consequential penalties cannot continue. Penalty under section 272A(1)(d) for non-compliance with statutory notices is distinct from quantum-linked penalties, but may be deleted where the taxpayer subsequently participates in proceedings, furnishes the required details, and the reassessment additions are ultimately deleted.

Assessment of income at 8% of cash deposits from a petroleum-products business requires fresh appellate consideration where the taxpayer claims a lower profit margin and seeks to provide supporting material. Prior non-compliance before the assessment and first appellate stages does not preclude a reasonable opportunity to substantiate the claimed margin. The first appellate authority must reconsider the matter after allowing production of cogent evidence, with the profit rate to be determined afresh.

Interest paid on overdrafts obtained against fixed deposits is deductible in computing income from other sources only where it is incurred wholly and exclusively to earn that income and has a direct nexus with the interest income. Where the use of overdraft funds and their connection with earning fixed-deposit interest are not substantiated, the interest expenditure is not deductible.

Disallowance of expenditure relating to exempt income under Section 14A read with Rule 8D cannot exceed the exempt income earned. Where exempt income was 24,000 and an equivalent amount had already been voluntarily disallowed, no further disallowance was warranted. The Finance Act, 2022 amendment applied from Assessment Year 2022-23, effective 1 April 2022, and did not apply retrospectively to Assessment Year 2018-19.

Section 270A distinguishes under-reporting from misreporting and permits an enhanced penalty only where a specified circumstance under section 270A(9) is established. Where reassessment accepts the income returned in response to a section 148 notice without addition or variation, a penalty order must identify the relevant section 270A(9) clause and establish its ingredients. Withdrawal of a deduction claim during reassessment, without material showing misrepresentation or suppression, does not by itself conclusively prove misreporting. On those facts, the misreporting penalty was unsustainable and deleted.

Penalty for delayed furnishing of a statement of financial transactions requires examination of the statutory reasonable-cause defence under sections 271FA and 273B of the Income-tax Act. Delay alone does not conclusively justify penalty. Where the explanation and supporting evidence for delay have not been considered on their merits, the reporting person must receive a reasonable opportunity to establish reasonable cause before penalty is determined. A dismissal without that adjudication cannot sustain the penalty.

Share-sale consideration is not unexplained cash credit where documentary evidence establishes the shareholder's ownership, transfer, source and nature of the receipt. Relevant proof may include the share-purchase agreement, signed share certificates, statutory registers and annual-return records, dematerialisation and demat records, foreign inward-remittance certification, and banking-channel receipt from the purchaser. An initially unsigned share certificate does not negate otherwise corroborated evidence. After the taxpayer discharges the primary evidentiary burden, unexplained-credit treatment requires independent verification rather than rejection of the substantiated records.

Section 145(3) permits rejection of accounts only where defects impair their correctness or completeness. A mismatch between GSTR-9C turnover and book turnover does not by itself justify rejection when reconciliation identifies sales made as a Kachha Arhatia on principals' behalf and separately reconciles trading sales, commission income and intra-day trading profit. Such agency sales are not the agent's turnover; gross commission is relevant. Without defects in audited records or material supporting an estimated profit rate through comparables or past results, an 8% income estimate is unsustainable and returned income should be accepted.

For Financial Year 2016-17, corresponding to Assessment Year 2017-18, tax liability was governed by the law in force on 1 April 2016. The amendment increasing the Section 115BBE rate from 30% to 60% took effect from 1 April 2017 and operated prospectively from Financial Year 2017-18. Consequently, the enhanced rate did not apply to additional income declared for Assessment Year 2017-18, which remained taxable at the normal applicable rates.

Interest paid to a corporation established under a Central, State or Provincial Act falls within the notified exemption from tax deduction at source on interest payments. A statutory corporation established under a Central Act is therefore covered by that exemption. A CBDT circular addressing entities with unconditional income-tax exemption does not restrict or displace the separate exemption available under the notification. Consequently, no tax deduction at source is required on such interest, and the payer cannot be treated as an assessee in default or charged consequential interest.

Binding interim judicial directions requiring leave fare concession reimbursements with a foreign travel leg not to be treated as income for tax deduction purposes prevented the bank's non-deduction from constituting a default. Although such reimbursements were not substantively exempt under section 10(5), the directions placed any eventual tax liability on employees if the writ petition failed. In the absence of modification, vacation, or inapplicability of that protection, a subsequent finding on substantive taxability could not retrospectively create a deduction obligation. The bank therefore was not an assessee in default under section 201(1), and consequential interest under section 201(1A) was not leviable.

Cash-deposit addition under the unexplained-credit and special tax-rate provisions requires merits adjudication where an earlier appeal was to be treated as ineffective only upon merger with a later appeal, but neither merger nor substantive examination occurred. The appellate authority must examine the addition after giving the assessee a reasonable opportunity of hearing. No conclusion was reached on either the validity or merits of the addition.

Revisionary jurisdiction requires an assessment order to be both erroneous and prejudicial to Revenue. Relevant inquiries and documentary evidence concerning continuing business expenditure after transfer of stock, property-related indexed improvement costs and capital loss, and fixed-asset reclassifications support a permissible assessment view. Expenditure connected with retained liabilities and continuing income activities cannot be split solely by the transfer date; revenue neutrality also negates prejudice. Internal branch transfers of existing assets at book cost do not constitute fresh acquisitions. Revision cannot rest merely on a preference for another view after adequate inquiry.

Valid exercise of the statutory option by furnishing Form No. 10-ID within the prescribed time makes the option applicable to subsequent assessment years and irrevocable. Nil income or no tax computation under the concessional regime in the first eligible year does not itself withdraw or cancel that option. However, the continuing option does not independently establish entitlement to the concessional tax rate. Eligibility remains subject to verification of the substantive conditions applicable for the relevant year. Continued availability of the option and entitlement to concessional tax treatment are therefore distinct matters.

Retirement leave encashment of Rs. 8,90,808 falls within the enhanced Rs. 25 lakh exemption ceiling under CBDT Notification No. 31/2023 for section 10(10AA) of the Income-tax Act. Applying the former Rs. 3 lakh ceiling is inconsistent with the enhanced limit. Exemption remains conditional on verification of the amount actually received and satisfaction of all applicable statutory requirements.

Royalty and fees for technical services payable to an associated enterprise are benchmarked at 1.9% of net sales under the unilateral advance pricing agreement methodology, rather than nil or 2%. Omission of the provision covering expenditure with specified related parties from specified domestic transactions, effective 1 April 2017, precludes a transfer-pricing adjustment for manufacturing activity founded on that provision for the relevant assessment year. Taxable income must therefore apply the 1.9% royalty and technical-service rate and exclude the manufacturing adjustment.

Penalty for under-reporting or misreporting is not leviable where an inadvertent omission to add back a tax provision in computing book profit is corrected, and tax is ultimately assessed and paid on the higher deemed income under the minimum alternate tax provisions. Because the book-profit adjustment was made, the normal-computation omission caused neither tax evasion nor revenue loss. The applicable departmental circular and the penalty principle governing tax determined on book profit support non-levy of penalty under Section 270A of the Income-tax Act, 1961.

Co-operative credit societies that are not themselves co-operative banks may claim deduction under section 80P(2)(d) for interest from investments and deposits with co-operative banks, treated as other registered co-operative societies. The exclusion in section 80P(4) applies to a claimant that is a co-operative bank and does not bar such a society because the payer is a co-operative bank. Interest on nationalised-bank deposits qualifies as business income under section 80P(2)(a)(i) where deposits support liquidity requirements, members' fund protection, multi-location operations, and the conduct of credit facilities, rather than representing surplus funds parked outside the business.

Rule 8D(2)(ii) machinery computation for Section 14A disallowance of expenditure relating to exempt dividend income is confined to investments that yielded dividend income in the relevant year. Unlisted securities that generated no dividend income cannot be included in the average value of investments for that computation. Including such non-yielding investments makes the further disallowance unsustainable.

Assessments under the combined scope of Sections 143 and 147 need not follow the best-judgment procedure merely because books of account are unavailable. Where the taxpayer fails to produce books and supporting records despite opportunity, and reported expenditure changes are grossly disproportionate to turnover growth, taxable income may be determined using industry-standard income and profit parameters. Non-rejection of returns or profit-and-loss accounts does not, by itself, invalidate that assessment approach.