Terms defined

For purposes of this subtitle, the term “partnership” includes a syndicate, group, pool, joint venture, or other unincorporated organization through or by means of which any business, financial operation, or venture is carried on, and which is not, within the meaning of this title, a corporation or a trust or estate. Under regulations the Secretary may, at the election of all the members of an unincorporated organization, exclude such organization from the application of all or part of this subchapter, if it is availed of— For purposes of this subtitle, the term “partner” means a member of a partnership. In the case of a capital interest in a partnership in which capital is a material income-producing factor, whether a person is a partner with respect to such interest shall be determined without regard to whether such interest was derived by gift from any other person. For purposes of this subchapter, a partnership agreement includes any modifications of the partnership agreement made prior to, or at, the time prescribed by law for the filing of the partnership return for the taxable year (not including extensions) which are agreed to by all the partners, or which are adopted in such other manner as may be provided by the partnership agreement. For purposes of this subchapter, the term “liquidation of a partner’s interest” means the termination of a partner’s entire interest in a partnership by means of a distribution, or a series of distributions, to the partner by the partnership. Except as otherwise provided in regulations, for purposes of— In the case of a qualified joint venture conducted by a husband and wife who file a joint return for the taxable year, for purposes of this title— For purposes of paragraph (1), the term “qualified joint venture” means any joint venture involving the conduct of a trade or business if— For rules in the case of the sale, exchange, liquidation, or reduction of a partner’s interest, see sections 704(b) and 706(c)(2).