Apportionment of cross-border insurance income limits tax to Indian operations and bars new assessment basis on appeal

Interest earned on remitted insurance funds was held taxable only to the extent reasonably attributable to operations carried on in British India, because the income arose from a composite cross-border business process that could be separated into Indian and non-Indian operations under section 42(1) and section 42(3). The fund remittance and investment abroad required apportionment, with relief for the portion attributable to operations outside British India. The appellate tribunal was also found unable to introduce rule 8 as a new and more onerous basis of computation when that issue had not been raised in the appeal, since its appellate power did not extend to enhancing the assessment in that manner.

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Issues: (i) Whether the interest earned on the remitted insurance funds was chargeable to tax in British India in full or only to the extent reasonably attributable to operations carried on in British India under section 42(1) and section 42(3). (ii) Whether the Appellate Tribunal could apply rule 8 to recompute the interest income and thereby enhance the assessment when that issue was not raised by the parties.

Issue (i): Whether the interest earned on the remitted insurance funds was chargeable to tax in British India in full or only to the extent reasonably attributable to operations carried on in British India under section 42(1) and section 42(3).

Analysis: The funds representing unexpired risks and outstanding claims were found to have been remitted to the United Kingdom and invested there, and interest was earned on them. That brought the income within the ambit of section 42(1), because it arose through a business connection in British India and out of Indian assets. At the same time, the earning of the interest was not an indivisible step: it involved receipt of premium in India, remittance of the funds, investment abroad, and receipt of income abroad. Those operations were capable of being separated, so section 42(3) required apportionment and relief for the part reasonably attributable to operations carried on outside British India.

Conclusion: The interest was taxable only to the extent reasonably attributable to the operations carried on in British India, and not in full.

Issue (ii): Whether the Appellate Tribunal could apply rule 8 to recompute the interest income and thereby enhance the assessment when that issue was not raised by the parties.

Analysis: The appellate power under section 33(4) was held to relate to the appeal and the grounds raised in it, and did not authorise the Tribunal to introduce a new basis of assessment adverse to the appellant when no cross-appeal or cross-objection had been filed. Rule 21 also permitted the Tribunal to support the lower order on another ground, but did not permit it to substitute an entirely different and more onerous mode of assessment. Rule 8 was, in any event, a rule of thumb applicable only where no more reliable data were available, and could not be selectively used to rework a single item of interest income on the facts found.

Conclusion: Rule 8 did not apply on the facts, and the Tribunal had no power to adopt that new basis so as to enhance the assessment.

Final Conclusion: The reference was answered by upholding taxability of the interest only to the extent attributable to Indian operations, rejecting the Tribunal's attempt to recompute the income under rule 8, and granting apportionment relief under section 42(3).

Ratio Decidendi: Income arising from a composite cross-border business transaction may be apportioned under section 42(3) according to the operations carried on within and outside British India, and an appellate tribunal cannot enlarge the assessment by introducing a new and more onerous mode of computation not raised in the appeal.

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