§ 6046A — Returns As To Interests In Foreign Partnerships

(a) Any United States person, except to the extent otherwise provided by regulations— (1) who acquires any interest in a foreign partnership, (2) who disposes of any portion of his interest in a foreign partnership, or (3) whose proportional interest in a foreign partnership changes substantially, (b) Any return required by subsection (a) shall be in such form and set forth such information as the Secretary shall by regulations prescribe. (c) Any return required by subsection (a) shall be filed on or before the 90th day (or on or before such later day as the Secretary may by regulations prescribe) after the day on which the United States person becomes liable to file such return. (d) For purposes of subsection (a), a 10-percent interest in a partnership is an interest described in section 6038(e)(3)(C). (e) For provisions relating to penalties for violations of this section, see sections 6679 and 7203.