Part IV of subchapter O of chapter 1 is amended— (1) by redesignating section 1061 as section 1062, and (2) by inserting after section 1060 the following new section: 1061. Partnership interests held in connection with performance of services (a) In general If one or more applicable partnership interests are held by a taxpayer at any time during the taxable year, the excess (if any) of— (1) the taxpayer’s net long-term capital gain with respect to such interests for such taxable year, over (2) the taxpayer’s net long-term capital gain with respect to such interests for such taxable year computed by applying paragraphs (3) and (4) of sections 1222 by substituting 3 years for 1 year , shall be treated as short-term capital gain, notwithstanding section 83 or any election in effect under section 83(b). (b) Special rule To the extent provided by the Secretary, subsection (a) shall not apply to income or gain attributable to any asset not held for portfolio investment on behalf of third party investors. (c) Applicable partnership interest For purposes of this section— (1) In general Except as provided in this paragraph or paragraph (4), the term applicable partnership interest means any interest in a partnership which, directly or indirectly, is transferred to (or is held by) the taxpayer in connection with the performance of substantial services by the taxpayer, or any other related person, in any applicable trade or business. The previous sentence shall not apply to an interest held by a person who is employed by another entity that is conducting a trade or business (other than an applicable trade or business) and only provides services to such other entity. (2) Applicable trade or business The term applicable trade or business means any activity conducted on a regular, continuous, and substantial basis which, regardless of whether the activity is conducted in one or more entities, consists, in whole or in part, of— (A) raising or returning capital, and (B) either— (i) investing in (or disposing of) specified