Mutual insurance premiums are not taxable profits; best-assessment methods may apply to non-resident insurer branches.

Participating premiums in a mutual insurance arrangement are treated as members' contributions to a common fund and are not taxable as profits or gains of the insurer. Where a non-resident insurer fails to furnish a proper return, taxable income may be estimated on the best available material under the statutory scheme, and the Indian branch income may be computed by the special proportionate rule when reliable data are lacking. The reference provision also permits amendment of the questions referred so the real controversy can be answered.

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Issues: (i) Whether premium income received under participating policies by a mutual insurance company is liable to be assessed to income tax as profits or gains. (ii) Whether, on the facts found, the company could be assessed on its other taxable income and whether the existing assessment was valid and binding. (iii) Whether the Court could amend the questions referred so as to include the real question arising on the reference.

Issue (i): Whether premium income received under participating policies by a mutual insurance company is liable to be assessed to income tax as profits or gains.

Analysis: Premiums paid by members participating in the mutual fund were treated as contributions to a common fund which comes back to the contributors, so the company could not make a profit out of itself. The reasoning followed the mutual insurance principle applied in the Styles line of authority, under which participating premium receipts are not treated as taxable profits or gains of the company.

Conclusion: The premium income from participating policies was not liable to income tax as profits or gains.

Issue (ii): Whether, on the facts found, the company could be assessed on its other taxable income and whether the existing assessment was valid and binding.

Analysis: The company failed to make a proper return of the income on which it was liable to tax. The assessment was therefore made on the best available material under the statutory scheme. Rule 25 was inapplicable because the company was not incorporated in British India, but Rule 35 applied to the Indian branches of non-resident insurance companies where more reliable data were unavailable. On the materials in the triennial valuation, the taxable sources of income exceeded the profits shown, and the assessment based on the proportion of Indian premium income to total premium income was justified.

Conclusion: The assessment, to the extent reflected in the existing assessment, was held to be valid and binding on the company.

Issue (iii): Whether the Court could amend the questions referred so as to include the real question arising on the reference.

Analysis: The Court treated the third question as the real issue and held that it had power under the reference provision to amend the questions so as to raise and answer the true controversy between the parties.

Conclusion: The Court could amend the questions referred and answer the real question arising in the reference.

Final Conclusion: The reference was answered substantially in favour of the Revenue: participating-policy premiums were held non-taxable, but the assessment on the company's other taxable income was sustained and the existing assessment was upheld as binding.

Ratio Decidendi: In a mutual insurance arrangement, contributions from participating members are not taxable profits, but where a non-resident insurer fails to furnish a proper return and reliable data are unavailable, the authorities may determine taxable income by the statutory best-assessment method and apply the special proportionate rule to the Indian branch.

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