Mutuality principle protects member-only fund surplus from tax where contributors and participators are the same class.

Income arising from dealings confined to members of a mutual benefit fund was not assessable as business income under section 10 of the Income-tax Act, 1922, because the contributors to the common fund and the participators in the surplus were identical. The fund earned surplus from interest on loans to members and default interest from members, and that surplus remained available for the benefit of the whole body of members. The fact that the fund was incorporated as a company did not destroy mutuality, since the real character of the concern was a mutual benefit association and there were no relevant dealings with non-members. On that basis, the surplus was exempt on the principle of mutuality.

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Issues: Whether the surplus arising from dealings between a mutual benefit fund and its members was assessable as business income under section 10 of the Income-tax Act, 1922, or was exempt on the principle of mutuality.

Analysis: The fund dealt only with its shareholders and not with outsiders in respect of the income in question. The profits arose from interest on loans to members and default interest from members, and the surplus was available for the benefit of the whole body of members. The governing test was whether there was complete identity between the contributors to the common fund and the participators in the surplus. The incorporation of the fund as a company was held to be immaterial where the real character of the concern was a mutual benefit association and the dealings were confined to members. The absence of dealings with non-members in the relevant income, and the availability of the right to contribute and the right to participate to the same class of members, satisfied the mutuality test.

Conclusion: The surplus from transactions with members was not assessable to tax under section 10 and was exempt on the principle of mutuality.

Ratio Decidendi: Income arising from transactions confined to members of a mutual concern is not taxable where the contributors to the common fund and the participators in the surplus are identical, and incorporation does not destroy that mutuality.

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