Joint family business tax character depends on whether the trade was carried on for the Hindu undivided family, not merely on partnership form.

Registration of members of a Hindu family as a firm does not by itself prevent assessment of the business income as that of a Hindu undivided family. A partnership deed among some family members is likewise not conclusive, because the real test is whether the business was carried on on behalf of, and for the benefit of, the joint family. The deed regulates inter se rights, but it does not determine the true tax character of the business if joint family funds, credit, or benefit are involved. The document states that this inquiry is ultimately factual and depends on the actual conduct and surrounding materials.

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Issues: (i) Whether registration of members of a Hindu family as a firm precluded assessment of the family as an undivided family to super-tax when the business was carried on on behalf of and for the benefit of the joint family. (ii) Whether a partnership deed between some members of the family by itself prevented the income of the partnership from being assessed as part of the income of the undivided family.

Issue (i): Whether registration of members of a Hindu family as a firm precluded assessment of the family as an undivided family to super-tax when the business was carried on on behalf of and for the benefit of the joint family.

Analysis: The statutory registration of the brothers as a firm did not by itself conclude the character of the business for income-tax purposes. Members of a joint family may trade either with joint family funds and credit, or on their own account, and a deed of partnership regulating their inter se relations does not necessarily determine whether the business is really a joint family adventure. The decisive inquiry is whether the business was carried on on behalf of and for the benefit of the joint family. On the materials before the Court, the advances made by the father were treated as loans and not as proof that the business was conducted as a joint family business, but the Court held that the answer depended on the factual position and could not be finally determined on the imperfect materials available.

Conclusion: Yes, registration did not preclude assessment unless it was shown that the firm carried on business on behalf of and for the benefit of the joint family.

Issue (ii): Whether a partnership deed between some members of the family by itself prevented the income of the partnership from being assessed as part of the income of the undivided family.

Analysis: The existence of a partnership among some members of the family was not conclusive against assessment of the income as joint family income. A partnership deed affects the rights of the parties inter se, but it does not necessarily determine whether the joint family property or credit was involved in the business. If the business is in substance carried on for the benefit of the joint family, the income may still be treated as assessable in the hands of the family. The Court therefore answered the question consistently with its answer on the first issue.

Conclusion: No, the mere constitution of a partnership did not preclude assessment where the partnership was conducted on behalf of and for the benefit of the joint family.

Final Conclusion: The reference was answered in a manner supportive of assessment of the income as joint family income unless the firm was shown to be a separate business not carried on for the benefit of the joint family; no costs were awarded.

Ratio Decidendi: Registration of a family business as a firm, or the existence of a partnership deed among some family members, is not conclusive against assessment as joint family income; the controlling test is whether the business was carried on on behalf of and for the benefit of the Hindu undivided family.

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